'vlarine Biological Laboratory FEBia WOODS HOLE, MASS. INDEX TO THE NAUTILUS Voliinies J55 to (io '92'- 1947 COMI'lII n BV AURELE LA ROCIQLE \ssrsrn) BV GENEVA SMHHE AND HAROLD \V. HARRY UNUERSn V 01 NHCHIGAN PRESS ANN ARBOR '95' To Bryant Walker whose efforts and support contributed to the publication of the first Index to the Nautilus and whose contributions to malacology have proven most commendable this continuation of the work is respectfully dedicated Foreword The Index to the first thirty-four volumes of the Nautilus, published in 1927, has served such a useful purpose that the com- pilers felt it worth while to provide an index to the next twenty-five volumes. They were encouraged by the authorities of the Museum of Zoology of the University of Michigan and in particular by Dr. Henry van der Schalie, curator of moUusks, who made it possible for them to devote all the time necessary to the completion of the work. The arrangement of the first Index has been followed as faith- fully as possible. Such changes in format and arrangement as have been made were dictated by a desire to save space and to keep the cost of the finished volume as low as possible. The few inno- vations made will, we hope, enhance the usefulness of the index. Strictly speaking, this index covers all but pages 127 to 141 of volume 59 and number 4 of volume 60. Pages 127 to 141 of volume 59 contain an index to F. C. Baker's "The Molluscan Family Plan- orbidae," and volume 60, No. 4, consists entirely of an index to the new genera, species, and varieties described in the Nautilus, vol- umes 34 to 60, both of which it would be pointless to enter in the present index. There have been a few departures from the format of the first Index; all are of a minor nature and were made in the interests of completeness or convenience. Wherever possible we have added the full name and dates for each author. Joint papers have been listed under the first author given and cross references made to each of the other authors. Minor changes in punctuation of page references were made for greater clarity. The month of publica- tion for each number was omitted since for all the volumes in- dexed. No. 1 was the number for July, No. 2 the number for Octo- ber, No. 3 the number for January, and No. 4 the number for April. A list of the exact dates of publication will be found in the Nautilus. Grateful acknowledgment is made of funds from the Horace H. Rackham School of Graduate Studies which made possible the publi- cation of this Index. Author Index Volumes 35-60 ADAMS, Joseph William, jt. auth. (1907-) See Horace Gardiner Richards [ADAMS, William Clark] (1880-1948) New shellfish law for Massachusetts. 43, 3: 105. 1930 ADOLPH, Helen Marie See Cope, Mrs. Helen Marie Adolph AGERSBORG, Helmer Pareli von Wold Kjerschow (1881- ) On the status of Chioraera (Gould). 35, 2: 50-57. 1921. For Errata see next item. Errata. 35, 3: 100. 1922 A critique of Professor Harold Heath's Chioraera dalli, with special reference to the use of the foot in the nudibranchiate mol- lusk, Melibe leonina Gould. 36,3:86-96 1923. Notes on a new cladohepatic nudibranch from Friday Harbor, Washington. 36, 4: 133-138 1923. For Correction see 37, 1: 34. 1923. Factors in the evolution of the prosobranchiate Mollusc, Thais lapillus. 43, 2: 45-49. 1929. The relation of temperature to continuous reproduction in the pulmonate snail, Physa gyrina Say. 45, 4: 121-123, 1932 AGUAYO, Carlos Guillermo (1899- ) New species of Opisthosiphon from eastern Cuba. 45, 3: 91-96. 1932 Two new Cuban Urocoptis. 45, 3: 96-98. 1932 On the synonymy and distribution of Planorbis anatinus Orbigny. 47, 2: 64-68. 1933 AGUAYO, Carlos Guillermo, jt. auth. See William James Clench, Henry Augustus Pilsbry, Carlos de la Torre AHLSTROM, Elbert Halvor Mollusks collected in Bass Island region, Lake Erie. 44, 2: 44- 48. 1930 j&M Author Index INDEX TO ALBANY, Richard L. A new character of the early stages of the Mollusc Janthina exigua. 54, 2: 73. 1940 ALDRICH, Truman Heminway (1848-1932) [Strepsidura contorta vice S. heilprinij. 40, 2: 69. 1926 ALEXANDER, Robert Crozer (1912- ) Some shells from South Cape May Beach. 54, 4: 126-128. 1941 Collecting mollusks at Hot Springs, Virginia. 60, 1: 4-6. 1946 Littorina littorea on the New Jersey coast. 60, 3: 73-76. 1947 Report on the land mollusks of Cape May, N. J. 60, 3: 97-100. 1947 ANDERSON, Frank Marion (1863-1945), and HANNA, G. Dallas Solen novacularis, a name for an Eocene fossil from California. 42, 2: 65-66. 1928 ANDREWS, Ethan Allen (1859- ) Some habits of a Cuban snail, Polymita picta Born. 46, 1: 22- 27.1932 Eggs of Ampullaria in Jamaica. 46, 3: 93-97. 1933 Neritina virginea in Town Creek at Montego Bay, Jamaica, B. W. I. 47, 2: 50-51. 1933 Restoration of shell parts by the painted snail, Polymita picta Born. 48, 2: 37-43. 1934 Spirally ridged eggshell of Pleurodonte, with notes on the rapid growth of a land snail. 49, 1: 2-6. 1935 Notes on growth of a Jamaican slug. 49, 4: 107-109. 1936 Secondary sex organs and taxonomy in the Neritidae. 50, 4: 109-113. 1937 A dense aggregation of snails. 51, 2: 39-42. 1937 A crude numerical expression for the brilliance of Gastropod shells. 52, 2: 51-54. 1938 Neritina virginea L., in Jamaica, B. W. I. 54, 1: 21-27; 2: 66- 68, 1940; 3: 98-106. 1941 "The control of Bilharzia in southern Rhodesia," by Alan Mozley. 58, 4: 145-146. 1945 ANONYMOUS [The Williams collection]. 35, 2: 62. 1921 [The life story of Sir Marcus SamuelJ.35, 3: 100. 1922 [Lithasia plicata from Green River, Jackson County, Kentucky]. 35, 4: 134-135. 1922 THE NAUTILUS Author Index "The San Francisco Bay marine piling survey, 2nd annual re- port." 36, 2: 66. 1922 "On the nomenclature of certain North American Naiades," by A. E. Ortmann and Bryant Walker. 36, 2: 70-71. 1922 Ferriss collection injured by fire. 36, 3: 104. 1923 Court rules mussel is not a wild animal. 37, 2: 70-71. 1923 Dr. Nelson Annandale (Obituary). 38, 1: 30. 1924 Henrv Haversham Godwin-Austen (Obituary). 38, 1: 30-31. 1924 "The Kentucky Riverand its mussel resources, " by Ernest Danglade. 38, 2: 71-72. 1924 Cephalopods or elephants on the Mayan stelae. 38, 3: 103. 1925 The muskrat in Czechoslovakia. 38, 3: 103. 1925 [The genus Orthaulax Gabb],39, 1: 28-29. 1925 "On the radula of Coxia," by A. J. Peile. 39, 1: 33. 1925 "Microscopic sculpture of pearly fresh water mussel shells," by Wm. B. Marshall. 39, 1: 33. 1925 Yoichiro Hirase (Obituary). 39, 2: 67-68. 1925 Zonitoides arboreus deleterious to cane. 39, 2: 70. 1925 "Growth and age and maturity of the Pacific razor clam, Sili- qua patula (Dixon)," by F. W. Weymouth, H. C. McMillin and H. B. Holmes. 39, 3: 108. 1926 Pupoidopsis hawaiensis on Christmas Islando 39, 4: 144. 1926 Snail pest at Deniyaya, Ceylon. 40, 1: 33. 1926 Eric Knight Jordan (Obituary). 40, 1: 33-34. 1926 "Veronicellidae from British Guiana, and anatomical notes on American Helicinidae," by H. Burrington Baker. 40, 1: 35-36. 1926 Charles Hedley (Obituary). 40, 3: 94-96. 1927 Purpura lapillus and imbricata. 40, 3: 101-102. 1927 Annie E. Law (Obituary). 40, 4: 132-133. 1927 Georg Ossian Sars (Obituary). 41, 1:31-32. 1927 The noisy oysters. 41, 2: 71. 1927 "The marine shells of the west coast of North America," by Ida Shepard Oldroyd. 41, 3: 106. 1928 "The affinities of Cecilioides and Ferussacia, illustrating adaptive evolution, " by Hugh Watson. 42, 3: 105-106. 1929 "Mollusks of importance in human and veterinary medicine," by J. Bequaert. 42, 3: 106. 1929 "Natural history of shipworm, Teredo navalis, at Woods Hole, Massachusetts," by B. H. Grave. 42, 3: 108, 1929 Snails as food. 42, 4: 140. 1929 "Strephobasis: a section of Pleurocera," by Calvin Goodrich. 42, 4: 144. 1929 "The inheritance of sinistrality in Limnaea peregra," by A. E. Boycott. 43, 1: 36. 1929 "Pseudohyaline American land shells," by H. Burrington Baker. 43, 4: 144. 1930 Author Index INDEX TO "A snail-collecting aphis-lion larva," by David T. Jones. 43, 4: 144. 1930 Bernard Barham Woodward (Obituary). 44, 3: 97. 1931 "An apparently extinct Euglandina from Texas," by T. D. A. Cockerell. 44, 4: 141. 1931 A union of American conchologists. 44, 4: 144, 1931 The American Malacological Union. 45, 1: 1-5. 1931 Snails force fliers to move. 45, 1: 28-29, 1931 "The Pleurocerid genus Eurycaelon," by Calvin Goodrich. 45, 1: 35. 1931 "Biology of Cohol (Ampullaria luzonica Reeve), a common Philippine freshwater snail," by Andres M. Nono and Andres M. Mane. 45, 1: 36. 1931 "Entovalva (Devonia) perrieri (Malard) in the western Atlantic," by W. J. Clench and C. G. Aguayo. 45, 4: 142. 1932 The Washington meeting of the American Malacological Union. 45, 4: 144. 1932 The second annual meeting of the American Malacological Union. 46, 1: 1-3. 1932 Charles Williston Johnson, 1863-1932 (Obituary). 46, 2: 37. 1932 "On an increase in the Naiad fauna of Saginaw Bay, Michigan. The Naiad species of the Great Lakes," by Calvin Goodrich and Henry van der Schalie. 46, 2: 68. 1932 "The Gastropods of the St. Louis, Missouri, Pennsylvanian outlier: IV, the Pseudomelaniidae," by J. Brooks Knight. 46, 2: 68. 1932 "China Straits" 46, 2: 72. 1932 "A statistical test of the species concept in Littorina," by John Colman. 46, 3: 106. 1933 Tom Shaw Oldroyd (Obituary). 46, 3: 108. 1933 American Malacological Union. 46, 4: 144. 1933 The eggs of Goniobasis virginica and Anculosa carinata. 47, 1: 35. 1933 Snails of the Marnock Plantation. 47, 2: 79. 1933 "Notes on the brackish water bivalve Polymesoda caroliniana (Bosc.)," by Henry van der Schalie. 47, 3: 116. 1934 The American Malacological Union. 47, 4: 152. 1934 The fourth annual meeting of the American Malacological Union. 48, 2: 72. 1934 Dr. Howard P. Bellows (Obituary). 48, 3: 103-104. 1935 ■ The fifth annual meeting of the American Malacological Union. 48, 4: 144. 1935 "Land snails as indicators of ecological conditions," by B. Shimek. 49, 1: 36. 1935 "Abnormalities in the uterine young of Campeloma rufum, a fresh water snail," by Norman T. Mattox. 49, 2: 69-70. 1935 THE NAUTILUS Author Index The sixth annual meeting of the American Malacological Union. 49, 4: 139-140. 1936 Succinea carried by a bird. 50,1:31. 1936 Wilhelm A. Lindholm, 1874-1935 (Obituary). 50, 2: 69. 1936 [West Florida collecting]. 50, 4: 141-142. 1937 Dr. Katharine Jeannette Bush (Obituary). 50, 4: 144. 1937 The selection of family names. 51, 1: 33. 1937 The seventh annual meeting of the American Malacological Union in the Museum of Zoology, University of Michigan, August 3 to 5, 1937; 51, 2: 68-71. 1937 Dr. Emmet Rixford (Obituary). 51 , 4: 141. 1938 Dr. Fred Baker (Obituary). 52, 1: 32. 1938 Mr. E. G. Vanatta (Obituary). 52, 4: 139. 1939 John Ritchie, Jr. (Obituary). 53, 2: 66. 1939 The tenth annual meeting of the American Malacological Union. 54, 1: 35-37. 1940 Henry C. Higgins (Obituary). 54, 3: 106. 1941 The Beal collection. 54, 4: 140-141. 1941 The eleventh annual meeting of the American Malacological Union. 54, 4: 146. 1941 Ida Shepard Oldroyd (Obituary). 55, 4: 140-141. 1942 The Bahama Conchological Society. 55, 4: 144. 1942 Dr. Charles Davies Sherborn (Obituary). 56, 2: 67. 1942 Hugh C. Fulton (Obituary). 56, 2: 68. 1942 Olof O. Nylander (Obituary). 57, 2: 66. 1943 Frank Harvey Eno (Obituary). 57, 4: 141. 1944 Living Planorbidae wanted. 58, 1:32= 1944 Norman W. Lermond (Obituary). 58, 3: 102-105. 1945 The genotype of Area. 59, 2: 66. 1945 On the naming of families and subfamilies. 60, 1: 31-32. 1946 Dr. Blenn R. Bales (Obituary). 60, 3: 101-102. 1947 ARCHER, Allan Frost (1904- ) Notes on the land shells of Rio, Kentucky. 44,1:16-17.1930 List of species from three localities in Switzerland. 44, 2: 70- 71. 1930 The land mollusks of Jefferson, Lincoln Co.. Maine. 45, 1: 34. 1931 A redefinition of Polygyra albolabris major. 46, 2: 40-43. 1932 A new variety of Viviparus contectoides (W. G. Binn ) from Jackson Co., Florida. 47, 1: 18-20. 1933 The land Mollusks of Mackinac Island, Michigan. 47, 4: 138- 140. 1934 Sinistral land snails from Ann Arbor, Michigan. 47, 4: 148-149. 1934 "A list of the Mollusks of the District of Columbia and vicinity,' by Horace G. Richards. 48, 1: 36, 1934 Author Index INDEX TO The Polygyra tridentata complex. 48, 1: 20-26; 2: 49-53. 1934 The ecology of the land Mollusca of Asheville, North Carolina. 48, 3: 77-83. 1935 A new species of- Polygyra from Arkansas. 49, 1: 19-20. 1935 Civilization and land MoUusks in Ohio. 50, 4: 117-121. 1937 Polygyra caddoensis Archer. 50, 4: 143. 1937 Some land Mollusks of three counties in eastern Ohio. 51, 2: 55-60. 1937 Helix pomatia Linne in Jackson, Michigan. 51, 2: 61-63. 1937 An insect "Xenophora." 51, 3: 105. 1938 Notes on some land Mollusks of a palmetto pasture in north- central Alabama. 51, 3: 105-106. 1938 A new species of Polygyra from the Great Smoky Mountains, North Carolina. 51, 4: 135-137. 1938 A new species of Stenotrema from East Tennessee. 52, 2: 54- 55. 1938 Garden Mollusca in eastern North America. 52, 3: 95-97. 1939 A new section and a new subspecies of Stenotrema. 52. 3: 98- 99. 1939 The distribution of land Mollusks of Alabama from their probable centers of origin. 52, 4: 112-115. 1939 The type of section Euchemotrema Archer. 53, 1: 33. 1939 Land Mollusca of a ruderal field community in north-central Alabama. 54, 1: 18-20. 1940 The land Mollusca of Coosa County, Alabama. 55, 1: 4-10. 1941 Pine woods as adequate habitat types for land Mollusca. 55, 3: 94-97. 1942 ARCHER, Allan Frost, jt. auth. See William James Clench, Harry Eugene Wheeler BAILEY, Joshua Longstreth, Jr. (1889- ) Fresh water Mollusca in brackish water. 43, 1: 34. 1929 Lake Merritt Mollusks. 45,4:138. 1932 The first Pacific conchologist. 48, 3: 73-75. 1935 Doctor Fred Baker (Obituary). 52, 2: 64-66. 1938 Chondropoma dentatum. 54, 1: 32. 1940 Wilmington, N. C, records. 54, 2: 69. 1940 More sinistral Gastropods. 55, 3: 102. 1942 Further remarks about labels. 57, 2: 70-71. 1943 Note on a Pacific Cetoconcha. 58, 2: 67. 1944 Cardita (Cyclocardia) longini, new name for Venericardia (Cyclocardia) nodulosa Dall, 1919. 58,4:118-120. 1945 10 THE NAUTILUS Author Index BAILEY, Joshua Longstreth, Jr., and BAILEY, Ruth Ingersoll A new species of Lymnaea from Oregon. 47, 1: 33-34. 1933 A new urocoptid Mollusc from the state of Sonora, Mexico. 53, 3: 94-95. 1940 Do hermit crabs inhabit sinistral shells? 56, 3: 107-108. 1943 BAILEY, Joshua Longstreth, Jr., REHDER, Harald Alfred, and BARTSCH, Paul The type of Neptunea "Bolten" Roding. 54, 4: 125-126. 1941 BAILEY, Ruth Ingersoll (Mrs. Joshua L. Bailey), jt. auth. See Bailey, Joshua Longstreth, Jr. BAKER, Frank Collins (1867-1942) New forms of Pleistocene Mollusks from Illinois. 35, 1: 22- 24. 1921 New species and varieties of Mollusca from Lake Winnebago, Wisconsin, with new records from this state. 35, 4: 130-133; 36, 1: 19-21. 1922 New Lymnaeas from Wisconsin and Minnesota with notes on shells from the latter state. 36,1:22-25. 1922 A new Anodontoides from Wisconsin. 36, 4: 123-125. 1923 Description of a new Lymnaea from Yellowstone Park. 36, 4: 125-126. 1923 A new Physa from California. 38, 1: 15. 1924 New forms of Planorbis and Lymnaea with notes on other forms. 39, 4: 116-121. 1926 Fresh-water Mollusca from White Lake, Oakland County, Michigan. 40, 2: 49-52. 1926 New varieties of Stagnicola from Wisconsin and Wyoming. 40, 3; 82-85. 1927 New varieties of Helisoma antrosa from Wisconsin and Minne- sota. 40, 3: 85-87. 1927 Descriptions of new forms of Pleistocene land Mollusks from Illinois with remarks on other species. 40, 4: 114-120^ 1927 Description of a new species of Lymnaea from British Columbia. 41, 1: 23-24. 1927 A new variety of Helisoma campanulata from Michigan. 41, 2: 49-51. 1927 Vermont shells. 41,3:108. 1928 Description of new varieties of land and fresh water Mollusks from Pleistocene deposits in Illinois. 41, 4: 132-137. 1928 The Mollusca of Chautauqua Lake, New York, with descriptions of a new variety of Ptychobranchus and of Helisoma. 42, 2: 48- 60. 1928 11 Author Index INDEX TO Molusca from Vermilion and Pelican Lakes, Minnesota, with the description of a new variety of Helisoma corpulenta. 42, 3: 95-97; 4: 131-136. 1929 The variation of Molluscan life during Pleistocene and Recent time. 44, 1: 21-24. 1930 Description of a new variety of Valvata lewisi Currier. 44, 4: 119-121. 1931 [Collecting in the Ozarks].45, 4: 137. 1932 Stagnicola apicina and Stagnicola walkeriana. 45, 4: 139-140. 1932 New species and varieties of Helisoma and Gyraulus from Canada. 46, 1: 6-9. 1932 A new race of Polygyra appressa from Illinois. 46, 2: 48-49. 1932 Polygyra dorfeuilliana and Bulimulus dealbatus in Illinois. 47, 1: 4-7. 1933 Self fertilization and nidification in Physa halei. 47, 1: 35. 1933 ~~~ A new form of Polygyra tridentata from Illinois. 47, 2: 58-59. 1933 Two new races and a new species of Helisoma from California. 47, 4: 140-142. 1934 New Lymnaeidae from the United States and Canada. I. Cali- fornia, Oregon, and other western states. 48, 1: 17-20. 1934 Mollusca from Turkey Run State Park, Indiana. 48, 3: 105- 106. 1935 The generic position of Planorbis umbilicatellus with the de- scription of a new group of Planorbidae. 49, 2: 46-48. 1935 Stagnicola elrodiana, new name for Limnaea montana Elrod. 49, 2: 64. 1935 The generic position of Planorbis obstructus Morelet. 49, 3: 104. 1936 New Lymnaeidae from the United States and Canada. II. Michigan, Minnesota, and Montana. 49,4:127-130. 1936 The relationship of Parapholyx. 50, 1: 30-31. 1936 Mollusca from Prince Albert National Park, Saskatchewan. 50, 4: 113-117. 1937 A new Pleistocene race of Polygyra appressa. 51, 1: 23-24. 1937 ' New land and freshwater Mollusca from the Upper Pliocene of Kansas and a new species of Gyraulus from early Pleistocene strata. 51,4:126-131. 1938 Original copies of Say's "American Conchology." 52, 3: 106. 1939 Stagnicola bulimoides vancouverensis Nov. var. 52, 4: 144. 1939 12 THE NAUTILUS Author Index South American species referred to Planorbula. 53, 3: 106. 1940 The case of Limnaeus sordidus Kuester. 53, 4: 138-140. 1940 A new Helisoma from the Pliocene of Florida. 54, 1: 17. 1940 A new species of Drepanotrema and some preoccupied Planor- bid names. 54, 3: 96-97. 1941 A new race of Parapholyx effusa. 55, 1: 16-17. 1941 Lymnaea stagnalis and Lymnaea (Radix) auricularia. 55, 3: 105-106. 1942 A new Gyraulus from the Pleistocene of California and a new Parapholyx from a supposed Pliocene deposit in Oregon. 55, 4: 130-132. 1942 BAKER, Frank Collins,and BROOKS, Stanley Truman New species and races of Lymnaeidae from Newfoundland. 49, 1: 10-13. 1935 BAKER, Frank Collins, and HENDERSON, Junius Fossaria perplexa F. C. Baker and Junuis Henderson. 42. 3: 103-104. 1929 A new Stagnicola from Montana. 47, 1: 30-32. 1933 BAKER. Frank Collins, jt. auth. See Pilsbry, Henry Augustus BAKER, Fred (1854-1938) Jeanette M. Cooke (Obituary). 36, 1:30-31. 1922 Note on Leptinaria imperforata Fred Baker. 36. 1: 32. 1922 Nomenclature of certain species of Chrysodomus and Callio- stoma. 37, 1: 34-35. 1923 Leptinaria. 39, 4: 144. 1926 Turbonilla hypocurta. 39,4:144: 1926 "Seashore animals of the Pacific coast." by Johnson and Snook. 42, 2: 72. 1928 A new name for a California shell. 43. 2: 72. 1929 A conchological Rip Van Winkle. 48, 1: 5-6. 1934 Notes on Ischnochiton ophioderma and Milneria kelseyi. 50, 3: 86. 1937. BAKER, Horace Burrington (1889- ) Aperostomatinae. 36. 1: 14-16. 1922 Proserpinidae. 36. 3: 84-85. 1923 New land operculates from the Dutch Leeward Islands. 37. 3: 89-94. 1924 13 Author Index - INDEX TO Agnathomorphous Aulacopoda.38, 3: 86-89. 1925 Nomenclature of Veronicellidae (Vaginulidae). 39, 1: 13-18. 1925 Isolation and Curasao. 39, 2: 40-44. 1925 The type of Ancylastrum Bourguignat. 39, 2: 44-47. 1925 Correspondence from Mexico. 40, 2: 63-65. 1926 The type of Streptostyla Shuttleworth. 41, 1: 21. 1927 Guppy's groups of Helicinidae. 41, 1: 22-23. 1927 Planogyra asteriscus (Morse). 41, 4: 122-123. 1928 Thiele's Brazilian land snails. 41, 4: 124-129. 1928 Genotype of Schasicheila. 42, 1: 36. 1928 North American Veronicellidae. 42, 2: 43-47. 1928 New southern Appalachian land snails. 42, 3: 86-93. 1929 Nomenclature in the genus Vitrina. 42, 4: 137-139. 1929 New and problematic west American land-snails. 43, 3: 95- 101; 4: 121-128. 1930 Gender in generic names. 43, 4: 129-140. 1930 Helix whitneyi Newcomb. 44, 3: 98-99. 1931 "Notes on Physidae with descriptions of new species," by W. J. Clench. 44, 3: 106. 1931 Notes on West Indian Veronicellidae. 44, 4: 131-137. 1931 A new name in Potamopyrgus. 44, 4: 143. 1931 New land snails from Idaho and eastern Oregon. 45, 3: 82-87. 1932 The animal of Proserpina. 47,4:151. 1934 Jamaican land snails. 48, 1: 6-14; 2: 60-67. 1934: 3: 83-88: 4: 135-140; 49, 1: 21-27: 2: 52-58. 1935 "Variation in Goniobasis virginica and Anculosa carinata under natural conditions," by Joshua L. Bailey, Raymond Pearl, and Charles P. Winsor. 48, 1: 34-35. 1934 Exact dates of the Nautilus. 48, 2: 69. 1934 Discus shimekii (Pils.) from the Black Hills, S. D. 48, 2: 71. 1934 Exact dates of the Nautilus. 49, 2: 64. 1935 "Notes on the anatomy of Oreohelix, III,with descriptions of new species and subspecies." by Henry A. Pilsbry. 49, 2: 69, 1935 "West coast shells. A description in familiar terms of the principal marine, fresh-water, and land Mollusks of the United States, British Columbia, and Alaska, found west of the Sierras." by Josiah Keep, revised by Joshua L. Bailey, Jr. 49, 3: 106. 1936 Exact dates of the Nautilus. 50, 1: 28. 1936 Xesta and Naninia. 50,1:30. 1936 Trochonanina and Diastole. 50, 2: 70. 1936 Hojeda inaguensis (Weinland). 50, 2: 70-71. 1936 Exact dates of the Nautilus. 51, 1: 33. 1937 Nomenclature of Onchidiidae. 51,3:85-88. 1938 14 THE NAUTILUS Author Index Xesta and Trochonanina. 51,3:104-105. 1938 Exact dates of the Nautilus. 52, 1: 32. 1938 Bensonies, new name for Bensonia Pfeiffer. 52, 1: 33. 1938 Mexican Mollusks collected for Dr. Bryant Walker in 1926, Part 3. 52, 4: 132-134. 1939 Exsuavitas. new subgenus of Aquebana Pilsbry. 52, 4: 143. 1939 Setipellis stigmatica (Pfeiffer). 52, 4: 143. 1939 Cepolis (Euclastaria?) debilis (Pfeiffer). 52, 4: 144. 1939 "The snail Polygyra thyroidus as a mycophagist," by Fred T. Wolf and Frederick A. Wolf. 52, 4: 144. 1939 A revision of Spiraxis C. B. Adams. 53, 1: 8-16. 1939 Exact dates of the Nautilus. 53, 1: 33. 1939 "Physiology of reproduction of Ostrea virginica. I. Spawning reactions of the female and male," by Paul S. Galtsoff . 53, 1: 35. 1939 "Prosobranchia et Opisthobranchia," by W. Adam and E. Leloup. 53, 1: 36. 1939 "The history of a population of Limacina retroversa during its drift across the Gulf of Maine," by Alfred C. Redfield. 53, 1: 36. 1939 "The reproductive system and spermatogenesis of Limacina (Spiratella) retroversa (Flem.)" by Sidney C. T. Hsiao. 53, 1: 36. 1939 New Mexican species of Spiraxis. 53, 2: 49-53. 1939 Mexican Subulinidae and Spiraxinae with new species of Spiraxis. 53, 3: 89-94. 1940 New names for Puerto Rican snails. 53. 3: 107. 1940 Another case. 53.4:138. 1940 "Land Mollusca of North America (North of Mexico), vol. 1, pt. 1," by Henry A. Pilsbry. 53. 4: 142-143. 1940 Exact dates of the Nautilus. 54. 1: 32. 1940 Some Antillean Sagdidae or Polygyridae. 54, 2: 54-62. 1940 New subgenera of Antillean Helicinidae. 54. 2: 70-71. 1940 Notes on Salasiella from Mexico. 54.3:80-84. 1941 Some Haplotrematidae. 54.4:130-136. 1941 Puerto Rican Oleacininae. 55, 1: 24-30. 1941 Exact dates of the Nautilus. 55, 1: 30. 1941 "The Cuban operculate land Mollusks of the family Annulariidae, exclusive of the subfamily Chondropominae." by Carlos de la Torre and Paul Bartsch. 55. 1: 34. 1941 Outline of American Oleacininae and new species from Mexico. 55. 2: 51-61. 1941 Exact dates of the Nautilus. 56, 1: 33. 1942 Goniobasis livescens in Douglas Lake, Michigan. 56. 1: 33-34. 1942 A new genus of Mexican Helicids. 56. 2: 37-40. 1942 A new genus of Chinese Microcystinae, 56. 2: 40-41. 1942 15 Author Index INDEX TO Some Antillean Helicids. 56, 3: 81-91. 1943 Megalomastoma croceum (Gmelin) 56, 3: 106-107. 1943 Two new subgeneric names in Poteria. 56, 4: 135-138. 1943 Dates of the Nautilus. 57, 1: 29. 1943 Tanychlamys versus Macrochlamys. 57. 1: 31. 1943 Dates of the Nautilus. 58, 1: 31. 1944 "Revision of the giant west coast land slugs of the genus Ario- limax Moerch," by Albert R. Mead. 58, 1: 33. 1944 Some American Achatinidae. 58, 3: 84-92. 1945 Johnsonia, No. 13. 58, 3: 107-108. 1945 "Variations in Strombus pugilis alatus," by Calvin Goodrich. 58, 3: 108. 1945 "Some turrid Mollusks of Monterey Bay and vicinity," by Paul Bartsch. 58, 3: 108. 1945 Dates of the Nautilus. 59, 1: 33. 1945 "Phylogeny and distribution of Siphonariidae, elucidating the phylogeny of Basommatophora and the origin of Pulmonata," by Bengt Hubendick. 59, 3: 108. 1946 Some of Ferussac's generic names. 59, 4: 115-121. 1946 Index to F. C. Baker's "The Molluscan family Planorbidae. " 59, 4: 127-141. 1946 Dates of the Nautilus. 60, 1: 32. 1946 Amnicola and Euamnicola. 60, 3: 105-106. 1947 Odontostomus odontostoma and Cyclodontina pantagruelina, 60 , 3: 106. 1947 The type of Orthalicus. 60,3:106-107. 1947 "The genus Bankia in the western Atlantic," by William J. Clench and Ruth D. Turner. 60, 3: 107-108. 1947 "The genus Mya in the western Atlantic; the family Haliotidae in the western Atlantic," by Richard W. Foster. 60, 3: 108. 1947 "Land and freshwater Mollusca," by G. Mandahl-Barth. 60, 3: 108. 1947 "Thyonicola mortenseni n. gen., n. sp. Diacolax cucumariae n. gen., n. sp., " by G. Mandahl-Barth. 60, 3: 108. 1947 "The genera Bathyaurinia. Rehderia and Scaphella in the western Atlantic," by William J. Clench. 60,3:108. 1947 Indexes to new families, genera, species, etc., in volumes 35 to 59. 60. 4: 109-147. 1947 BALES, Blenn Rife (1876-1946) Marine collecting on the west coast of Mexico. 52, 2: 41-46. 1938 The rock dwellers of the Florida keys. 54, 2: 39-42. 1940 A new subspecies of Strombus raninus Gmelin. 56, 1: 18-19. 1942 Albinos of Muricidea ostrearum Conrad. 56, 1: 35-36. 1942 Diggin' 'em out. 59, 1: 13-17. 1945 16 THE NAUTILUS Author Index Night collecting. 59, 2: 42-44. 1945 The bar. 59, 3: 73-76. 1946 BANKS, Gilbert Shelley (1906- ) Some land shells from Grandfather Mt., N. C. 45, 4: 138-139. 1932 Mesomphix (Micromphix) subplanus planus, subsp. nov. 47, 2: 70. 1933 BANKS. Gilbert S., jt. auth. See Clench, William James BARNEY, Raymond L. (1891-1938) An indication of the value of artificial propagation of pearly mussels. 36. 2: 53-58. 1922 BARTSCH, Paul (1871- ) "Observations on living Gasteropods of New England," by Ed- ward S. Morse. 35, 3: 85-90. 1922 [Notes on Syncera Gray].35, 3: 99-100. 1922 The status of Teredo beachi and Teredo navalis. 37, 1: 31-32. 1923 A key to the family Terebridae. 37, 2: 60-64. 1923 Lima hughi new name. 37, 2: 69-70. 1923 Alvania in South Africa: a correction. 41, 4: 141. 1928 Odostomia (Ividella) mariae, new species. 42, 2: 41-42. 1928 A note on Ryssota (Lamarckiella) oweniana Pfeiffer. 46. 3: 105-106. 1933 Ootomella new name for Ootoma Koperb. 47, 2: 76-77. 1933 An invasion of Monterey Bay by squids. 48, 3: 107-108. 1935 Turbonilla (Pyrgiscus) delmontana, new name. 50, 3: 100-101. 1937 A new west American cone. 51, 1: 3-4. 1937 Micrarionta harperi orcuttiana. new name. 51,1:33. 1937 The typical form of Helminthoglypta californiensis (Lea). 51 , 1: 36. 1937 Epitonium tollini Pall, new species. 52, 1: 34. 1938 Leiostraca schwengelae. a new name. 52, 1: 34. 1938 Two new Philippine land shells. 52, 3: 92. 1939 Turritomella. new subgeneric name for Turritoma Bartsch. 54, 4: 143. 1941 Some deep-sea Philippine Volutids. 56, 1: 9-13. 1942 A new subspecies of Haliotis (H. fulgens turveri). 56, 2: 57. 1942 17 Author Index INDEX TO A new subgenus and species of Coelocentrum. 56, 3: 91-92. 1943 An interesting cache. 56, 4: 144. 1943 New name in Coelocentrum. 56, 4: 144. 1943 Puerto Rican Megalomastoma. 57, 1: 30. 1943 An interesting variant of Venus campechiensis. 57, 2: 68. 1943 Orinella vanhyningi , new species. 57, 3: 106-107. 1944 Taranini. 57, 3: 107. 1944 Burchia, a new genus of Turrids. 57, 4: 115-116. 1944 Taxonomic headaches. 57,4:116-118. 1944 Imaclava, a correction. 58, 2: 67. 1944 Tridacna. 58,4:144. 1945 MorrisoneUa. a new genus of east Pacific deep sea Mollusks. 59, 1: 23. 1945 Some notes on the genus Exilioidea. 59, 2: 61-63. 1945 Three new subspecies of Amphidromus versicolor from the Philippine Islands. 60, 2: 62-66. 1946 Type of Elephantellum. 60, 3: 104. 1947 BARTSCH, Paul, and MORRISON, Joseph Paul Eldred Paraprososthenia gredleri (Neumayr). 58, 4: 134-135. BARTSCH, Paul, and REHDER, Harald Alfred Two new marine shells from the Aleutian Islands. 52, 4: 110- 112. 1939 Phlycticoncha, new name for a subgenus of Lyonsia. 53. 4: 137. 1940 Notes on the names Poteria, Ptychocochlis, and Aperostoma. 57, 2: 62-64. 1943 BARTSCH, Paul, jt. auth. See Bailey, Joshua Longstreth, Jr. BAYER, F. M. Observations on marine Mollusca, with descriptions of new species. 56,4:109-115. 1943 The Florida species of the family Chamidae. 56. 4: 116-124, 1943 BAYER, Ted Notes on Florida Mollusca, with descriptions of two new varieties. 55, 2: 43-46. 1941 Observations on Mitra florida Gould. 55, 3: 78-80. 1942 18 THE NAUTILUS Author Index The type locality and dates of Pecten imbricatus mildredae Bayer. 55, 3: 106. 1942 BEQUAERT, Joseph Charles (1886-) Malacological notes from the Amazon River, Brazil. 39, 1: 1-5. 1925 An unusual case of commensalism between a snail (Stropho- chilus oblongus Mliller) and a coprid beetle. 49, 1: 35-36. 1935 Random notes on American Potamididae. 56, 1: 20-30. 1942 Cerithidia hegewischii (Philippi), a Pacific coast shell. 57, 1: 30-31. 1943 BEQUAERT, Joseph Charles, and CLENCH, William James Studies of African land and fresh-water Mollusks. X. Gulella pumilio (Gould) and two species confused with it. 49, 3: 93-97. 1936 The supposed introduction of an African Archachatina into the West Indies. 51,1:33-34. 1937 A new subspecies of Solaropsis gibboni from Brazil. 51, 4: 115. 1938 Further notes on Archachatina. 52, 1: 26-27. 1938 BEQUAERT, Joseph Charles, jt. auth. See Pilsbry, Henry Augustus BERRY, Edward Willard (1900- ) Protoconchs of Caecum in the Miocene of Maryland. 39, 2: 66-67. 1925 Two new species of Dentalium from the Eocene of Peru. 40, 1: 19-20. 1926 BERRY, Elmer Gratiot (1907- ) Mollusca of Lamb's Canyon, Utah. 44,4:113-114. 1931 The rediscovery of Oreohelix haydeni (Gabb). 46, 2: 56-58. 1932 BERRY, Elmer Gratiot, j^. auth. See Chamberlin. Ralph Vary BERRY, Samuel StiUman (1887- ) Some land snails of Shasta County, California. 35, 2: 35-39. 1921 For correction, see next item Localities of northern California land snails: a correction. 36, 1: 32-33. 1922 19 Author Index INDEX TO A new zonitid snail from southern California. 37, 4: 130-132, 1924 "The life-history and growth of the Pismo clam (Tivela stult- orum Mawe)." Frank W. Weymouth. 38, 2: 68-71. 1924 A note on the name Lophochiton. 39, 3: 105. 1926 A new Oregonian subspecies of Monadenia fidelis. 40, 4: 122- 124. 1927 Three new snails from the hills of California. 43, 2: 39-40. 1929 For correction, see 43, 4: 138. 1930 Snail notes from the California desert. 43, 3: 73-75. 1930 Snails, new and otherwise, from the Palomar Mountains, Cali- fornia. 43, 4: 113-114. 1930 Land snails from the San Juan Islands, Washington. 43, 4: 141- 142. 1930 The genus Oreohelix in California. 44, 3: 73-75. 1931 A new Californian race of Monadenia. 44, 4: 122-123. 1931 Three new polygyrid snails from California. 47, 1: 12-16. 1933 A further record of a chiton (Nuttallina) with nine valves. 48, 3: 89-90. 1935 Land snails of Kadiak. 50, 3: 87-88. 1937 Some lesser races of Monadenia fidelis (Gray). 51 , 1: 28-33. 1937 Two new polygyroid helicoids from northern California. 53, 2: 56-61. 1939 A new Pyrgulopsis from Oregon. 60, 3: 76-78. 1947 BIGGS. Herbert Edwin James (1895- ) Collecting Mollusca on the Iranian plateau. 50, 1: 8-13, 1936 BISHOP. Sherman Chauncey (1887- ) Zonitoides arboreus (Say) in Mammoth Cave, Kentucky. 39, 2: 70. 1925 BLAKE, Charles Henry (1901- ) Distribution of Gastropods in the Muddy River - September. 1932. 46, 3: 100-101. 1933 Arion circumscriptus in Massachusetts. 46, 3: 107. 1933 Young stages of Discus alternatus, 49, 2: 58-59. 1935 BLAKE. James Henry (1845-1941) A large pecten bed. 38, 1: 32-33. 1924 An abnormal clam. 38,3:89-90. 1925 Edward Goss Humphrey (Obituary). 48, 3: 103. 1935 20 THE NAUTILUS Author Index BLAKESLEE, Clifford Lyman (1883-1949) Snails from the aboriginal deposits of Frontenac Island. New York. 58, 4: 109-112. 1945 The cepaea nemoralis of Brighton, Monroe County, New York. 59, 2: 44-47. 1945 Winter collection in the barge canal at Pittsford, N. Y. 59, 4: 109-113. 1946 Some Mollusca of Illion Gorge, Herkimer County, New York. 60, 3: 78-81. 1947 [BLAND, Thomas (1809-1885),and CLENCH, William James] Robert Swift (Obituary). 51, 4: 142-143. 1938 BONNOT, Paul A recent introduction of exotic species of Molluscs into Cali- fornia waters from Japan. 49, 1: 1-2. 1935 BORMANN, Ralph, BORMANN, Mary (Mrs. Ralph Bormann), and BORMANN, Ralph, Jr. Some rare California shells. 55, 4: 141-142. 1942 BORMANN. Mary (Mrs, Ralph Bormann) A survey of some west American Ocenebras, with description of a new species. 60, 2: 37-43. 1946 BORMANN, Mary (Mrs. Ralph Bormann), jt. auth. See Bormann. Ralph BORMANN, Ralph, Jr., jt. auth. See Bormann, Ralph BOURGEOIS, Marie Eloise Another specimen of Xenophora robusta. 57, 2: 37. 1943 Another specimen of Pseudochama inermis with a second authentic habitat. 58, 3: 96-97. 1945 BOWER, William Joseph (1870- ) Egg laying process of Strombus pugilis alatus Gmelin. 59, 1: 35. 1945 BOWLES, John Hooper Notes on snails destroying creepers and their eggs. 36. 2: 61-62. 1922 BROOKS, Betty Watt (Mrs. Stanley T. Brooks) (1902- ) jt. auth. See Brooks, Stanley Truman 21 Author Index INDEX TO BROOKS, Stanley Truman (1902- ) The Gastropod family Pleuroceridae in Pennsylvania. 45, 2: 58-64. 1931 • Polygyra platysayoides nov. spec. 46, 2: 54-55. 1932 Dr. Victor Sterki, 1846-1933 (Obituary), 46, 4: 134-136. 1933 William Elliott Burnett, 1872-1933 (Obituary) 47, 4: 143-144. 1934 Aplexa hypnorum pilsbryi n. subsp. 48, 3: 100. 1935 West Virginian Carychiidae in the Carnegie Museum collection - 1936. 49, 4: 115. 1936 Some Molluscs from Utah. 50, 1: 13-14. 1936 The West Virginian Pupillidae in the Carnegie Museum. 50, 3: 97-98. 1937 Oreohelix eurekensis uinta. 52,3:105-106. 1939 BROOKS, Stanley Truman, and BROOKS, Betty Watt (Mrs. Stanley T. Brooks) A new colony of Helix nemoralis with some observations on their color. 47, 3: 96-100. 1934 BROOKS, Stanley Truman, and HERRINGTON, Harry Biggar The Sphaeriidae, a preliminary survey. 57, 3: 93-97. 1944 BROOKS, Stanley Truman, and MACMILLAN, Gordon Kutchka New Gastropoda from West Virginia. 53, 3: 95-97. 1940 BROOKS, Stanley Truman, jt. auth. See Baker, Frank Collins BURCH, Thomas Adams A new Pseudomelatoma from California. 52, 1: 21-22. 1938 Addition to the Molluscan fauna of California. 54, 2: 46-47. 1940 A survey of the west American Aligenas with a description of a new species. 55, 2: 48-51. 1941 BURKENROAD, Martin David (1910-) Pteropoda from Louisiana. 47, 2: 54-57. 1933 BURNETT, William Elliott (1872-1933) Polygyra espiloca ("Rav." Bid.) at Beaufort, N. C. 44, 4: 143. 1931 BUTTON, Fred L. (1856-1927) Note on Cypraea pacifica Ostergaard. 36, 2: 71-72. 1922 22 THE NAUTILUS Author Index [CAESAR, Northcote Henry] (1865-) A roundup of Cochlicopa lubrica. 60, 2: 72. 1946 CAHN, Alvin Robert (1892- ), and KEMP, Jack T. The terrestrial Mollusca of Turkey Run State Park, Indiana. 43, 2: 66-68. 1929 CARCELLES, Alberto First record of Bartlettia in Paraguay. 55, 3: 93-94. 1942 CARRIKER, Melbourne Romaine (1915- ) Variability, developmental changes, and denticle-replacement in the radula of Lymnaea stagnalis appressa Say. 57, 2: 52-59. 1943 CARUTHERS, Morris Ewing (1884-) Natica and limpets. 46,3:104-105. 1933 Crassispira bottae Val. 46, 4: 144. 1933 CAWSTON, Frederick Gordon The radula of Lymnaea and Bulinus. 41. 4: 141-142. 1928 [Erosion of radula]. 51, 4: 143-144. 1938 Succession of teeth in fresh-water Mollusca. 52, 4: 142. 1939 South African aquatic snails. 60. 1: 35. 1946 CHACE. Elsie Margaret Herbst (Mrs. Emery P. Chace) (1884- ) Conchological club of southern California.43, 1: 31-33. 1929 Mrs. W. H. Eshnaur. 1862-1943 (Obituary). 57, 1: 35-36. 1943 George Willett (Obituary). 59, 3: 101-104. 1946 CHACE, Elsie Margaret Herbst (Mrs. Emery P. Chace). jt. auth. See Chace. Emery Perkins; Smith Allyn Goodwin; Strong. Archibald McClure CHACE. Emery Perkins (1882- ) Klamath County, California. 50, 3: 105-106. 1937 A new race of Helminthoglypta traski from Lower California. 51, 2: 60-61. 1937 New localities for Helminthoglypta californiensis Lea. 55, 2: 65. 1941 Field notes on some west coast Mollusks. 56. 2: 41-43. 1942 CHACE. Emery Perkins, and CHACE. Elsie Margaret Herbst (Mrs. Emery P. Chace) Two seven-valved chitons from Mendocino, California. 44. 1: 7-8. 1930 23 Author Index INDEX TO Field notes on chitons of Crescent City, California. 46, 4: 123- 124. 1933 A variable colony of Monadenia fide lis (Gray). 46, 4: 142-144. 1933 Some range extensions in northeri) California and south-western Oregon. 47, 3: 111-112. 1934 A new variety of Monadenia fidelis from Curry County, Oregon. 49, 2: 48-49. 1935 CHACE, Emery Perkins, jt. auth. See Smith, Allyn Goodwin CHAMBERLAIN, Thomas Knight (1895-) Ages and shell measurement of two large specimens of Megalo- naias gigantea (Barnes). 47, 1. 29-30. 1933 CHAMBERLIN, Ralph Vary (1879- ) Observations on Stagnicola kingi (Meek), living and extinct. 46, 3: 97-100. 1933 CHAMBERLIN, Ralph Vary, and BERRY, Elmer Gratiot Notes of the Mollusca of southeastern Utah. 42, 4: 123-125. 1929 Mollusks of the Pliocene deposits at Collinston, Utah. 47, 1: 25- 29. 1933 CHEATUM, Elmer Philip (1901-) Arboreal behavior of Helicina orbiculata tropica "Jan" Pfr. 47, 4: 147-148. 1934 Gastropods of the Davis Mountains vicinity in west Texas. 48, 4: 112-116. 1935 CHEN, Sui-Fong A new species of fresh water Mollusk from Chinao 55, 1: 17-18. 1941 Two new genera, two new species, and two new names of Chinese Melaniidae. 57, 1: 19-21. 1943 Two new species, one new subspecies and one new name of Chinese Viviparidae. 59, 2: 63-66. 1945 CHITWOOD, Benjamin Goodwin (1906-), and CHITWOOD, May Belle Hutson (Mrs. Benjamin G. Chitwood) Snails as hosts and carriers of Nematodes and Nematomor- pha. 50, 4: 130-135. 1937 CHITWOOD, May Belle Hutson (Mrs. Benjamin G. Chitwood) (1908-), j^. auth. See Chitwood, Benjamin Goodwin 24 THE NAUTILUS Author Index CHURCH, Clifford Carl, (1899-), and SMITH, Allyn Goodwin A giant race of Helminthoglypta from Tulare Co., California. 51, 4: 119-122, 1938 CLAPP, George Hubbard (1858-1949) A new variety of Auris aurissciuri (Guppy). 40, 4: 131-132. 1927 [CLAPP, William Frederickl (1881-) News from the schooner M. M. Hamilton. 44, 1: 32. 1930 CLARK, Mrs. Effie Mabel Walter Lincoln Brown, 1866-1942 (Obituary). 56, 3: 102. 1943 CLARK, Howard Walton (1870-1941), and STEIN, Samuel Glochidia in surface towings. 35, 1: 16-20. 1921 CLARK, Howard Walton, jt- auth. See Hanna, G. Dallas CLARKE, William Thompson, Jr. (1914-) List of Molluscs from drift debris of Paladora Creek, Texas. 52, 1: 14-15. 1938 CLENCH, William James (1897- ) The marine shells of Sanibel, Florida. 37, 2: 52-56. 1923 A new species of Physa from Texas. 38, 1: 12-13. 1924 Radula technique for Physa. 38, 1: 13-14. 1924 Additions to the list of marine shells of Sanibel, Florida. 38, 3: 93-95. 1925 A short list of land and freshwater Mollusks from southeastern Texas. 39, 1: 11-12. 1925 Snails eaten by shrews. 39, 1: 28. 1925 Nahant Beach shells. 39, 1: 29. 1925 "The effects of ultraviolet light on pond snails (Linnaeus)." by C. W. M. Poynter and Alan Moritz. 39,1:34-35. 1925 Collecting in Kentucky. 39, 2: 71-72. 1925 Some notes and a list of shells of Rio, Kentucky. 40, 1: 7-12; 2: 65-67. 1926 "A fresh-water snail, Physa zionis, living under unusual condi- tions," by H. A. Pilsbry. 40, 1: 34. 1926 Malanoides tuberculata moussoni, new name. 40, 3: 101. 1927 A new subgenus and species of Bulinus from Japan. 40, 4: 121- 122. 1927 A new subspecies of Thais from Louisiana. 41, 1: 6-8. 1927 25 Author Index INDEX TO For Erratum on plate 2, opp. p. 36. Vol. 44, see 44, 2: 68. 1930 Correspondence. 41, 2: 70. 1927 Venus mercenaria var. notata Say. 41,4:120-122. 1928 lo fluvialis turrita Anthony. 42, 1: 36. 1928 The N. W. Lermond collection of Mollusks. 42, 2: 67-68. 1928 Manly D. Barber (Obituary). 42, 3: 101-102. 1929 Arion ater ater (Linne) in Maine. 42, 3: 104. 1929 "The aquatic Mollusks of the Belgian Congo," by H. A. Pilsbry and J. Bequaert. 42, 3: 107. 1929 Some new Liguus from the Florida everglades. 43, 1: 18-21. 1929 A field method of preserving. 43, 1: 33-34. 1929 Some land and marine shells from the Mississippi delta region. 43, 1: 34-35. 1929 Concerning a policy. 43,2:69-70. 1929 Physa and Bulinus of Mauritius. 43, 3: 92-93. 1930 Litorina littorea Linn. 43,3:105. 1930 Additional notes on the colony of Helix nemoralis at Marion Mass. 44, 1: 13-14. 1930 "'The Venus,' a new quarterly journal on Mollusks." 44, 1: 34- 35. 1930 A note on the habitat of Viviparus subpurpureus (Say). 44, 2: 70. 1930 Camptoceras (Culmenella) prashadi nom. nov. 44, 3: 80. 1931 "Ligging" in the everglades of Florida. 45, 1: 10-15. 1931 A preventative for the scaling of the periostracum. 45, 1: 30- 31. 1931 The genus Goodrichia. 45, 2: 71-72. 1931 Achatina murrea Reeve. 45, 3: 106. 1932 Thomas Say -- his first paper on American Mollusks. 45, 4: 112. 1932 Viviparus japonicus v. Mart. 45, 4: 136. 1932 "The Paryphantidae of New Zealand: their hypothetical ancestry, with descriptions of new species and a new genus," by A. W. B. Powell. 45,4:142-143. 1932 Diplomorpha coxi (Pease).46, 2: 68-69. 1932 A new liguus from Florida. 46, 3: 91-92. 1933 Two new land snails from the Bismarck Archipelago. 47, 1: 23-24. 1933 Surinamia, a new Ampullariid from Dutch Guiana. 47. 2: 71-72. 1933 The Thomas Bland collection of American land shells. 47, 2: 79-80. 1933 A new subspecies of Oliva reticularis from southern Florida. 47, 4: 142-143. 1934 Paludina humerosa Anthony. 47, 4: 151. 1934 Physa acuta Draparnaud in Massachusetts. 48. 1: 33. 1934 26 THE NAUTILUS Author Index "The habitats of land Mollusks in Britain, " by A. E. Boycott. 48, 1: 35. 1934 "Non-marine Mollusca from Dutch North New Guinea including an annotated list of the species of Papuina," by Tera Van Benthem Jutting. 48, 1: 35-36. 1934 New races of Liguus from Florida and Cuba. 48, 4: 121-125. 1935 A new subgenus and a new species of Placostylus from the Solomon Islands. 48, 4: 126. 1935 Physa ampullacea 'Gould' Binney. 49,1:30-32. 1935 A new species of Cerion from Long Island, Bahamas, and a note on Cerion milleri (Pfeiffer).49. 2: 49-50. 1935 Liguus fasciatus caribaeus, new species. 49, 2: 68. 1935 A new Cerion from the Bahama. 49, 4: 112-113. 1936 Leopoldo A. Faustino (Obituary). 49, 4: 139. 1936 Helicostyla subcarinata archeri, new subspecies. 49, 4: 140- 141. 1936 "Classification of the Pelecypod family Arcidae," by P. W. Reinhart. 49, 4: 142. 1936 "'Basteria,' a new journal of malacology." 50. 1: 33. 1936 A new subspecies of Papuina with records of land Mollusks from eastern Papua and associated islands. 50, 2: 53-54. 1936 Onchidium (Onchidella) floridanum Dall. 50, 3: 85-86. 1937 Physa canadensis WTiiteaves. 50,4:143-144. 1937 Notes on three rare American Polygyra. 51, 1: 17-18. 1937 A new variety of Bulimulus dealbatus from Alabama. 51, 1: 18- 19. 1937 Three new species of Cerions from Long Island, Bahamas. 51, 1: 19-23. 1937 A new species of Oliva from Santo Domingo, with notes on other marine forms. 51,4:109-114. 1938 The Oliver P. Emerson collection of Achatinellidae. 52, 3: 107- 108. 1939 Helix nemoralis L. at Warm Springs, Va. 52, 3: 108. 1939 Additional notes on Terebra flammea Lamarck. 53, 1: 7-8. 1939 Oxystyla on Sanibel Island, Florida. 53, 4: 122-123. 1940 Pyrgulopsis nevadensis Stearns in Oregon. 53, 4: 137. 1940 Another record for Viviparus malleatus in Massachusetts. 54. 2: 69-70. 1940 A remarkable development of pseudo-sculpture on a bivalve. 55, 3: 73-74. 1942 Johnsonia, numbers 4 and 5. 56. 1: 36. 1942 Helicostyla from the Talaud Islands. Molucca Islands. East Indies. 57, 1: 17-19. 1943 Papuina gartneriana Pfeiffer. 57. 2: 64-66. 1943 Hemphill's catalogue of the land and freshwater shells of Utah. 57. 3: 108. 1944 27 Author Index INDEX TO A large specimen of Ensis directus Conrad. 58, 1: 31. 1944 Anoma flexuosa (Pfeiffer) 58, 1: 31-32. 1944 Otala lactea (MuIIer) in Texas. 58, 2: 67. 1944 The West Indian fauna in southern Florida, 59, 1:32-33. 1945 Praticolella griseola Pfr. in Hispaniola. 59, 4: 144. 1946 Republication of descriptions of North American MoUusks by Verkruzen, Kurtz and De Tar and Beecher. 60, 2: 69-71. 1946 CLENCH, William James, and AGUAYO, Carlos Guillermo Two new subspecies of Cuban Liguus. West Indian Mollusks, No. 3. 45, 3: 98-100. 1932 A new fossil Cepolis from Cuba: West Indian Mollusks No. 6. 47, 1: 21-22. 1933 A new Jamaican Poteria. 49, 2: 51. 1935 A new Pleistocene Mecoliotia from Cuba. 49, 3: 91-93. 1936 CLENCH, William James, and ARCHER, Allan Frost A new species of Strophocheilus from Brazil. 43, 3: 75-77. 1930 A new variety of Achatina panthera from Madagascar, 43, 3: 85-86. 1930 Two new land shells from the southern Appalachians. 46, 3: 86-91. 1933 A new species of Papuina with notes on P. tayloriana. 49, 3: 88-91. 1936 CLENCH, William James, and BANKS, Gilbert S. Descriptions of some land snails of southwestern North Caro- lina 46, 1: 14-18; 2: 58-59. 1932 Land shells collected in southwestern North Carolina. 46. 2: 58-59. 1932 Discus rotundata (Mull.) in Massachusetts. 52, 3: 108. 1939 CLENCH, William James, and REHDER, Harald Alfred A new Humboldtiana from Texas. 44, 1: 10-13. 1930 CLENCH, William James, and RUSSELL, Henry Drummond Freshwater shells of New Hampshire. 54. 2: 52-53. 1940 CLENCH, William James, and VAN DER SCHALIE, Henry Lampsilis cariosa (Say). 50, 3: 105. 1937 CI ENCH, William James, jt. auth. See Bequaert, Joseph Charles; Bland, Thomas; Remington, Pardon Sheldon, Jr.; Torre, Carlos de la 28 THE NAUTILUS Author Index COATS, Ruth Emily Corbicula cowlitzensis Weaver. 50, 1: 23-24. 1936 COCKERELL, Theodore Dru Alison (1866-1948) The Helicoid group Disculella Pilsbry. 35, 1: 12-14. 1921 Miscellaneous notes on land Mollusca of the Madeira Is. 35, 2: 39-40. 1921 The Helicoid genus Leptaxis Lowe. 35, 4: 101-103 . 1922 Variation in Mollusca of the Madeira Islands. 36, 2: 44-46. 1922 Some slugs from Mexico. 37, 1: 27-28. 1923 Eulota maachii, a Siberian snail. 38, 2: 62-65. 1924 A visit to the Hawaiian Islands. 38, 3: 76-83. 1925 Partula in Guam. 39,1:19-21. 1925 Reversed Lymnaea peregra. 39, 1: 21-24. 1925 Borus lorentzianus Doering. 39, 3: 77-78. 1926 Mollusca of the Arequipa Valley, Peru. 39, 3: 103-104. 1926 A large form of Oreohelix yavapaiin the Grand Canyon. 40. 3: 101. 1927 Limax maximus var. krynickii in the Azores. 40, 4: 138. 1927 The Mollusca of Lake Baikal. 41, 2: 40-43. 1927 The genus Placostylus in New Caledonia 42, 3: 73-78. 1929 A new snail from Catalina Island, California. 42, 3: 99-100. 1929 The Brachiopod called Mimulus. 42, 3: 105. 1929 The genus Megaustenia. 43,2:51-54. 1929 A new Helicina from New Caledonia. 43, 4: 134-135. 1930 A new Endodonta from the Hawiian Islands. 47, 2: 58. 1933 Corbicula in S. Rhodesia. 47,2:77. 1933 African slugs. 48, 4: 142-143. 1935 Monadenia fidelis (Gray). 49, 1: 35. 1935 Rhachistia histrio in New Caledonia. 51,1:35. 1937 Helminthoglypta ayresiana on San Miguel Is., Cal. 51,2:71-72. 1937 Junius Henderson (Obituary). 51 . 3: 97-99. 1938 A pleistocene snail from San Miguel Island, California. 52, 1: 24-25. 1938 Physa on the California Islands. 52, 4: 138. 1939 Pleistocene shells from San Clemente Island, California. 53. 1: 22-23. 1939 "North American snails of the families Polygyridae and Sagdi- dae," by H. A. Pilsbry. 54,3:108-110. 1941 "The South African non-marine Mollusca," by M. Connolly. 55, 2: 62-64. 1941 The name Pteranodon. 55, 2: 64. 1941 Helix aspersa in New Mexico. 59,4: 144. 1946 29 Author Index INDEX TO Tegucigalpa, Honduras, excerpts from letters. 60, 3: 104. 1947 COCKERELL, Theodore Dru Alison, jt. auth. See Pilsbry, Henry Augustus COKER, Robert Ervin, jt. auth. (1876- ) See Pinney, Mary Edith COLEMAN, Rufus A. (1858- ) Efforts to acclimatize Atlantic oyster and soft clam in the Hawaiian Islands. 36,4:138-139. 1923 COLLINS; Robert Edward Lee (1898-) Psammodulus. a new Middle Miocene Modulid from the Isthmus of Tehuantepec, Mexico. 47, 4: 127-130. 1934 COLTON, Harold Sellers (1881-) Fossil fresh water shells from Winona, Coconino County, Ari- zona. 42, 3: 93-94. 1929 COOKE, Charles Montague, Jr. (1874-1948) Joseph Swift Emerson (Obituary). 44, 3: 94-95. 1931 The genus Armsia. 45, 4: 125-126. 1932 Measurements used in shell descriptions. 54, 3: 107. 1941 COOKE, Charles Montague, Jr., jt. auth. See Pilsbry, Henry Augustus COPE, Mrs. Helen Marie Adolph. jt. auth. See Ingram. William Marcus COTTAM, Clarence. (1899- ) Supplementary notes on the food of the Limpkin. 55, 4: 125-128. 1942 COTTON, Bernard Charles (1905-) Helisoma companulatum (Say) in Australia. 48, 3: 106. 1935 CRABB, Edward Drane (1890-) A predatory Polygyra. 42, 1: 35-36. 1928 Egg laying and birth of young in three species of Viviparidae. 42. 4: 125-129. 1929 CRAMPTON. Henry Edward (1875-) New and significant species of Partula from Moorea. Society Islands. 37. 4: 109-118. 1924 30 THF NAUTILUS Author Index CRAWFORD, George Ivor (1910-) Notes on Stephanoda patagonica (Suter) and the genus Radiodis- cus. with a new name for R. patagonicus Pilsbry. 52, 4: 115-117. 1939 CURTIS, Brian Mussel poisoning on the Pacific Coast. 57, 2: 70. 1943 DALL, William Healey (1845-1927) A new Chiton from southern Brazil. 35, 1: 4-5. 1921 Nomenclatorial notes. 35, 2: 49-50. 1921 Notes on Alaba and Diala. 35,3:84-85. 1922 Note on Acteocina. 35,3:96. 1922 Note on Fenella A. Adams. 36, 1: 27-28. 1922 Two new bivalves from Argentina. 36, 2: 58-59. 1922 A new deep water Lyonsiella. 37, 1: 31. 1923 Note on Fenella, Obtortio and Alabina. 37, 1: 33-34. 1923 F. C. Meuschen in the Zoophylacium Gronovianum. 37, 2: 44- 52. 1923 Note on the discovery of Orygoceras in the Idaho Tertiaries. 37. 3: 97-98. 1924 A new Alaskan Puncturella. 37, 4: 133. 1924 A remarkable Caecid from Florida. 38, 1: 7-8. 1924 New shells from Japan. 38, 3: 95-97. 1925 "Kritisches verzeichniss der rezenten und fossilen Cypraeen," by F. A. Schilder. 38, 3: 106-107. 1925 Notes on the nomenclature of some of our east American species of Pecten with descriptions of new species. 38, 4: 112-120. 1925 Note on the name of our common oyster. 38, 4: 121. 1925 A new Acteocina from British Columbia. 39, 1: 25-26. 1925 On Amicula and Cryptochiton. 39, 3: 75-76. 1926 Note on Ancylastrum. 39, 3: 105. 1926 [Japanese species introduced at Bellingham Bay, Washington]. 40, 1:32. 1926 A new Pecten from the Loochoo Islands. 40, 2: 67. 1926 A new name for Acmaea apicina Dall. 40, 3: 101. 1927 Note on the genera of Costa's Microdoride. 40, 4: 134. 1927 DE BOE, Mizpah Otto A new color form of Liguus from a new area of the Florida Everglades. 47, 2: 68-69. 1933 Liguus from a new locality in central Florida everglades. 48, 2: 69. 1934 31 Author Index INDEX TO DE CHAMPLAIN, Andre-Albert (1900- ) Helix hortensis in the province of Quebec. 42, 3: 102. 1929 DEGNER, Eduard Limpets bored by predacious Gastropods? 46, 3: 103. 1933 DEXTER, Ralph Warren (1912-) Notes on the marine Mollusks of Cape Ann, Massachusetts. 56, 2: 57-61. 1942 Observations on the local movements of Littorina litorea (L.) and Thais lapillus (L.) 57, 1: 6-8. 1943 A source of misleading Molluscan records. 57, 2: 67-68. 1943 Shell heaps of the Herring Gull. 57, 2: 69. 1943 Annual fluctuation of abundance of some marine Mollusks. 58, 1: 18-24. 1944 Venus mercenaria not at Cape Ann. 58, 2: 71. 1944 Zonation of the intertidal marine Mollusks at Cape Ann, Massa- chusetts. 58, 4: 135-142. 1945 The genus Pecten at Cape Ann, Massachusetts. 59, 2: 69-70. 1945 DEXTER, Ralph Warren, jt. auth. See Speck, Frank Gouldsmith DIVER, Cyril Obituary of Professor A. E. Boycott, F. R. S. 52, 4: 135-138. 1939 DODGE, Henry A letter concerning the cones of Hwass and other collections in Switzerland. 59, 3: 97-101. 1946 Notes on Lamarck's "Prodrome" 1799. 60, 1: 25-31. 1946 DRANGA, Ted, jt. auth. See Perry, Louise M. DURHAM, John Wyatt (1907-) Four new Gastropods from the Gulf of California. 55, 4: 120- 125. 1942 EDGE, Elton R., jt. auth. See Yocom, Harry Barclay EDMONDSON, Charles Howard Vertical distribution of shipworms in Hawaiian waters. 58, 2: 55-56. 1944 32 THE NAUTILUS Author Index Dispersal of shipworms in the Pacific. 60, 2: 53-54. 1946 EMERY, Daniel Littlefield (1861-1950) Collecting in southern Florida, the Bahamas and Cuba. 38, 2: 56-62. 1924 Charles Curry Allen (Obituary) 48, 1: 31-33. 1934 Sinistral Liguus fasciatus roseatus. 52, 4: 140. 1939 Cypraea spadicea in the bulla stage. 52, 4: 141. 1939 Sinistral Pomacea. 57, 2: 66. 1943 EYERDAM, Walter Jakob (1892-) Marine shells of Drier Bay, Knight Island, Prince William Sound, Alaska. 38, 1: 22-28. 1924 Station of Ferissia oregonensis (Clessin). 39, 2: 71 . 1925 The land shells of Kamchatka. 43, 2: 61-62. 1929 Further comment on limpets bored by Natica. 46, 3: 104. 1933 Haplotrema vancouverensis chocolata Dall. 46, 3: 104-105. 1933 A biological collecting excursion to the Aleutian Islands. 46, 4: 124-128. 1933 Two record sizes of Pecten. 47,1:36-37. 1933 Invertebrate remains dug from kitchen middens of an old Aleut stone age village near Dutch Harbor, Alaska. 47, 3: 100-103. 1934 Land and freshwater shells from the vicinity of Yakima, Washington. 48, 2: 46-48. 1934 The red shell money of western Melanesia. 48, 3: 76-77. 1935 The distribution of Melania and Neritina in the British Solo- mon Islands. 50, 2:- 44-46. 1936 Monadenia semialba Henderson. 51,2:63-65. 1937 A concentratedpopulation of Lymnaea palustris nuttalliana Lea. 51, 2: 72. 1937 Extended ranges of seventy-five species of north Pacific shells collected by Walter J. Eyerdam and Ingvard Norberg. 51, 3: 100-104; 4: 122-126. 1938 A collection of freshwater shells from Kamchatka. 52, 2: 56- 59. 1938 Land snails collected at Uganik Bay, Kodiak Island. 53, 2: 61- 64. 1939 The northern range of Monadenia fidelis Gray. 53, 3: 107. 1940 Extension of ranges of North American marine shells to Chile. 53, 3: 108. 1940 Extension of range of Monadenia semialba Henderson. 53, 3: 108. 1940 33 Author Index INDEX TO Further notes on land shells from Kodiak and nearby islands. 53, 4: 131-133. 1940 A Solomon Island Batissa living in dry hot sand. 53. 4: 144. 1940 Some maximum sized Cardium corbis from Alaska. 54, 2: 53. 1940 Cleaning shells with aid of blow-fly maggots. 54, 4: 145-146. 1941 Lymnaea auricularia Linnaeus in western Washington and Kamchatka. 55, 1: 18-19. 1941 Excursions to Lake Baical. 55.4:133-139. 1942 Collecting shells in the Solomon Islands. 57, 2: 41-42. 1943 Extended ranges of four Alaskan marine shells. 57. 4: 142. 1944 FARGO, William Gilbert (1867-) Pinellas County, Florida. Tertiary fossil localities. 59, 4: 143- 144. 1946 FENTON, Carroll Lane (1900- ) A parasitic brachiopod. 46,2:52-54. 1932 FERRISS, James Henry (1849-1926) On the Rio Grande. 38,2:37-43. 1924 A new Texan Bulimulus. 39, 1: 24-25„ 1925 FIELD, Stanley C. Snails climbing trees. 44, 1: 30. 1930 Notes on the occurrence of Micrarionta kellettii (Forbes) on the Californian mainland near San Pedro, 44, 3: 86. 1931 Notes on Californian shells of the Helminthoglypta cuyamacensis group. 45, 1: 29. 1931 FIELD, Stanley C, jt. auth. See Pilsbry, Henry Augustus FLUCK, William Henry Valvata simplex Gould. 46,1:19-22. 1932 Abnormalities in Helix (Alabastrina) tingitana Paladilhe and Mesodon exoletus Binney. 56, Z: 104-105. 1943 FORCART, Lothar Nomenclatorial notes on Odontostomus Beck, 1837 (Bulimulidae) 60, 2: 57-60. 1946 34 THE NAUTILUS Author Index FOSTER, Richard Winslow Area barbata Linn. 49,2:64. 1935 Notes on Anomia aculeata Miiller. 50,3:102-103. 1937 FOSTER, Thural Dale, jt. auth. (1897-1936) See Van Cleave, Harley Jones FOX, Denis Llewellyn (1901 -) A biochemical method for internally cleaning small molluscan shells. 48, 3: 99-100. 1935 FOX, William Joseph (1872- ) Some unpublished plates of Conrad's "Unionidae." 38, 1: 28-29. 1924 FRANZEN, Dorothea Susanna A new fossil Pupillid. 60, 1: 24-25. 1946 FRIERSON, Lorraine Screven Observations on the genera Leila and Anodontites. 36, 1: 7-10. 1922 Observations on the genus Margaritana with a new sub-genus. 36, 2: 42-44. 1922 Inhabitants of a natural aquarium. 36, 4: 126-129. 1923 Interesting facts in the history of Unio orbiculatus Hildreth and U. abruptus Say. 37,4:135-137. 1924 Illustrations of Unionidae. 41,4:138-139. 1928 John K. Strecker (Obituary). 46. 4: 136-137. 1933 FRIZZELL, Donald Leslie (1906-) Pododesmus macroschisma Deshayes. 42, 2: 67. 1928; 43, 3: 104- 1930 -- For correction see 43, 4: 138. 1930 A new Pleistocene fossil from Port Blakely, Washington. 43, 4: 120-121. 1930 The status of Paphia tenerrima alta Waterfall. 44, 2: 48-50. 1930 Variation in the sculpture of Acila castrensis Hinds. 44, 2: 50- 53. 1930 Schizothaerus nuttallii capax Gld. not maxima Midd. 44. 2: 69. 1930 FULLER, Arthur Bennett (1893-) Collecting Mollusks on a beam-trawler. 35, 2: 29-32. 1921 FULTON, Hugh Coomber (1861-1942) Notes on the Recent Spondylus of Florida. 51, 2: 38-39. 1937 35 Author Index INDEX TO Note on Pecten (Chlamys) muscosus Wood, 1828, and P. exas- peratus Sow., 1842. 52, 3: 102. 1939 GARDNER, Julia Anna (1882-) The nomenclature of the superspecific groups of Corbula in the Lower Miocene of Florida. 40, 2: 41-47. 1926 Wendell Clay Mansfield (Obituary). 53, 2: 64-65. 1939 Three new species from an Upper Miocene oyster "Reef" in Tampa Bay. 59,2:37-41. 1945 GAY. Clementine M. Warren H. Eshnaur (Obituary). 49, 2: 63-64. 1935 GAY. Clementine M., jt. auth. See White. C. E. GIFFORD, Delila Sara Giffen (Mrs. E. W. Gifford) (1888-), and GIFFORD, Edward Winslow Color variation in Olivella biplicata. 55, 1:10-12. 1941 More "corded" olive shells. 55, 2: 66. 1941 Olivella pycna. 55,3:92-93. 1942 Color variation in Olivella biplicata in various localities. 56, 2: 43-48. 1942 Californian Olivellas. 57,3:73-80. 1944 Color variation in Olivella undatella. 60, 3:81-84. 1947 GIFFOPD, Edward Winslow, jt auth. (1887- ) See Gifford, Delila Sara Giffen GILMORE. Howard Cepaea hortensis. 60,3:102. 1947 GOODRICH, Calvin (1874-) River barriers to aquatic animals. 35, 1: 1-4. 1921 Anculosae north of the Alabama drainage. 35, 1: 9-12. 1921 Something about Angitrema. 35. 2: 58-59. 1921 Variations in Goniobasis edgariana Lea. 36,4: 115-119. 1923 Some old Pleurocerids and a new one. 38, 2: 43-48. 1924 Some misplaced Pleurocerids. 41. 2: 57-62. 1927 The group of Goniobasis catenaria. 42.1:28-32. 1928 Goniobasis undulata. 42,2:67. 1928 The nomenclature of ecological varieties. 42, 4: 114-118. 1929 The Pleurocerid fauna of the Falls of the Ohio. 43, 1: 1-17. 1929 Unio spinosa Lea. 43,4:140. 1930 Pleurocera (Strephobasis) curtum (Haldeman) 43, 4: 141. 1930 Some conchological beginnings. 45, 2: 41-47. 1931 36 THE NAUTILUS Author Index Collecting in Tennessee. 45. 4: 136-137. 1932 Cress a possible introducer of species. 46, 1: 35-36. 1932 The true position of Brugiere's Bulimus carinatus. 46, 2: 38- 40. 1932 Mollusks of Moose Factory. 47, 1: 7-9. 1933 A species of Goniobasis new to the Great Basin, 49, 2: 66. 1935 Notes on Philippine freshwater Mollusks. 49, 3: 73-79. 1936 Bryant Walker 1856-1936 (Obituary), 50, 2: 59-64. 1936 Goniobasis columbiensis Whiteaves. 50, 3: 82-84. 1937 Aspects of depauperization. 52,4:124-128. 1939 Certain Mollusks of the Ogeechee River, Georgia. 52, 4: 129- 131. 1939 New opercula for old, 52, 4: 140. 1939 Who or What? 53, 2: 66-67. 1939 See also 53, 3: 106. 1940 Sequence in the distribution of aquatic species. 53, 3: 73-77. 1940 Mollusks of a Kansas Pleistocene deposit. 53, 3: 77-79. 1940 Another immigrant. 53, 3: 105-106. 1940 Regarding O. G. B. 53, 3: 106. 1940 Civilization and aquatic Mollusks. 54, 1: 6-10. 1940 From Capt. Frederick Marryat, "A diary in America, with re- marks on its institutions." 54, 2: 70. 1940 On certain land shell localities. 54, 3: 78-80, 1941 Lymnaea contracta Currier. 54, 4: 121-122, 1941 A sinistral albino, 54, 4: 141. 1941 A senatorial conchologist. 55, 2: 66. 1941 The American species of Viviparus. 55, 3: 82-92. 1942 Observations upon a Florida form of Viviparus. 55, 4: 115- 118. 1942 Certain remarks about labels. 55. 4: 119-120. 1942 Precedence. 57, 4: 141. 1944 Certain operculates of the Coosa River. 58, 1: 1-10. 1944 Pulmonates of the Coosa River. 58,1:11-15. 1944 Pleuroceridae of the Coosa River Basin. 58, 2: 40-48. 1944 Sphaeriidae of the Coosa River Basin. 58. 2: 48-52. 1944 GORDON, Mackenzie, Jr. A new Turbonilla from Redondo Beach, California. 52, 2: 49- 51. 1938 A new subgenus and species of west coast "Alvania." 53. 1: 29-33. 1939 GRANT, Ulysses S., IV (1893-) Notes on Acar Gray. 45, 4: 127-128. 1932 37 Author Index INDEX TO GRANT, Ulysses S. IV, andQUAYLE, E. H. A new middle Miocene Neptunea from California, 47, 3: 91-93. 1934 GRANT, Ulysses S. IV, jt. auth. See Oldroyd, Ida Mary Shepard GRAY, Arthur F. William Greene Binney (Obituary). 45, 2: 37-41. 1931 Charles Williston Johnson, 1863-1932 (Obituary), 46, 4: 129-134. 1933 Bibliography of William Greene Binney. 50, 3: 98-1,00; '4: 135- 140. 1937 A Cerion found in Bermuda. 55, 3: 104. 1942 GRAY, George Melton (1856-1946) Observations on Montacuta percompressa Dall. 46, 3: 76-79. 1933 GREGG, Wendell Oliver (1898- ) Introduced species of Lymnaea in southern California. 37, 1: 34. 1923 Two new Helicoids from Los Angeles County, California. 45, 2: 47-51. 1931 Lymnaea (Fossaria) perplexa in southern California. 45, 4: 131-132. 1932 Planorbis opercularis planulatus in Los Angeles, California. 48, 1: 33. 1934 Some erroneous and misleading records on occurrence of shells of the Helminth oglypta cuyamacensis group. 50, 2: 67-69. 1936 Pecten pugetensis at Newport Bay. California. 51, 4: 118-119, 1938 Mollusca of Zion National Park, Utah. 54, 1: 30-32. 1940 Anatomy of Helminthoglypta. 54, 1: 33. 1940 A new Oreohelix from southern Utah. 54, 3: 95-96. 1941 Mollusca of Cedar Breaks National Monument, Utah. 54, 4: 116-117. 1941 Fluminicola avernalis and Fluminicola avernalis carinifera from Nevada. 54,4:117-118. 1941 Additional Utah records. 55,4:143-144. 1942 Notes on land slugs of Los Angeles and Orange Counties. California. 57,4:109-115. 1944 Southern record for Hesperarion niger. 59, 1: 36. 1945 Proterogyny in Deroceras panormitanum. 58, 2: 67-68. 1944 38 THE NAUTILUS Author Index GRIER, Norman MacDowell (1890-) On the Naiades of Long Island, N. Y. 37, 3: 95-96. 1924 Notes on the Naiades of the Upper Mississippi drainage. III. On the relation of temperature to the rhythmical contractions of the "mantle flaps" in Lampsilis ventricosa (Barnes). 39, 4: 111- 114. 1926 Notes on the Naiades of Long Island: II. Anodonta cataracta on Long Island. 40,3:91-93. 1927 GRIER, Norman MacDowell, and MUELLER, Justus Frederick Notes on the Naiad fauna of the upper Mississippi River. II. The Naiades of the upper Mississippi drainage. 36, 2: 46-49. 1922; 3: 96-103. 1923 GRIMSHAWE, C. N., jt. auth. See Pilsbry, Henry Augustus HAAS, Fritz (1886- ) On the life habits of some tropical fresh-water mussels. 53, 2: 53-56. 1939 Planorbulina not a generic name in the MoUusca. 54, 1: 33-34. 1940 What is Anodonta (Euphrata) bahlikiana Pallary? 55,1:20-21. 1931 Obstructio versus Tropicorbis. 55,1:31-32. 1941 The habits of life of some west coast bivalves. 55, 4: 109-113; 56, 1: 30-33. 1942 HACKNEY, Anne Gray (Mrs. J. M. Hackney) Note on Fasciolaria distans Lam. 57, 4: 142-143. 1944 Note on Busycon carica (Gmelin) 57, 4: 143. 1944 Albino specimen of Busycon perversum L. 57, 4: 143-144. 1944 List of Mollusca from around Beaufort, N. Carolina, with notes on Tethys. 58,2:56-64. 1944 Mesodon appressus (Say) at Jamestown, Virginia. 59, 2: 49-50. 1945 HAND, Edwin E. Sonorellas and scenery. 35, 4: 123-129. 1922 Conchologists in the making. 38, 3: 90-92. 1925 Seeking land shells in Cuba. 40, 2: 37-41. 1926 A list of land shells collected in Cuba in July. 1926. 40. 3: 88- 91. 1927 Sinistral Campeloma. 41,3:106-107. 1928 HANHAM, A. W. (1857- ? ) Hemphillia malonei Van. 39, 4: 143-144. 1926 39 Author Index INDEX TO HANNA, G. Dallas (1887-) Epiphragmophora fidelis (Gray) near San Francisco Bay? 35, 2: 34-35. 1921 Frederick Morton Chamberlain (Obituary). 35, 2: 60. 1921 Notes on the anatomy of Strobilops labyrinthica (Say). 35, 3: 91- 93. 1922 "The gray garden slug, with notes on allied forms," by A. L. Lovett and A. B. Black. 35, 3: 97. 1922 fThe Johnston collection] 35,4: 133-134. 1922 The status of Helix oregonensis Lea. 36, 1:12-14. 1922 "Fauna from the Eocene of Washington," by Charles E. Weaver and Katherine Van Winkle Palmer. 36. 4: 141-142. 1923 Note on Lymnaea hemphilliana (Baker). 37. 1: 23-25. 1923 Pleistocene freshwater MoUusks from north central Texas. 37, 1: 25-26. 1923 Succinea avara Say. from the tar pits of California. 37, 3: 106. 1924 "Mollusca of the southwestern states-XI," by Henry A. Pilsbry and James H. Ferriss. 37. 3: 107-108. 1924 Some land shells from the Aleutian Islands, Alaska. 38, 4: 122- 125. 1925 Zalophancylus, a fish vertebra, not a Mollusk. 39, 1: 18-19. 1925 Further notes on Scalez petrolia. 40, 1: 14-16. 1926 Exact localities of certain California land snails. 40, 4: 124-125. 1927 Helminthoglypta traskii (Newcomb) at "Fort Tejon," Kern County California. 41, 1: 32-34. 1927 "New specific names for austral Mollusca." by H. J. Finlay. 41, 1: 34-36. 1927 Pyrgulopsis nevadensis (Stearns) in Oregon. 43, 3: 103-104. 1930 "Some notes on liver-fluke investigation," by J. N. Shaw. 45. 1: 34-35. 1931 "Salmon poisoning." by B. T. Simms. 45, 1: 35. 1931 A protest against the use of "Navicula" for a group of Mollusca. 45, 4: 118-120. 1932 A new outbreak of Helix pisana in California. 46, 4: 139-140. 1933 The type locality of "Helix tudiculata var. tularensis Hemphill." 52, 1: 7-9. 1938 " The Emmet Rixford collection. 52, 4: 139. 1939 Extension of range of Tethys californicus Cooper in California. 53, 1: 34. 1939 Say's Conchology. 53, 1: 34-35. 1939 40 THE NAUTILUS Author Index HANNA, G. Dallas, and CLARK, Howard Walton Lymnaea auricularia (Linn.) in California. 38, 4: 125-127. 1925 Additional records for Lymnaea auricularia. 39, 2: 71. 1925 HANNA, G. Dallas, and HERTLEIN, Leo George Notes on Ostrea californica Marcou. 41, 2: 45-47. 1927 Longevity of Mitra in captivity. 48, 3: 90-91. 1935 HANNA, G. Dallas, and NICHOLSON, John Larkin Rediscovery of Polygyra roperi Pilsbry. 44, 1: 17-18. 1930 HANNA, G. Dallas, and SMITH, Allyn Goodwin Notes on Acmaea funiculata (Carpenter) 45, 1: 21-25. 1931 Location of the collection of shells assembled by Rev. J. Rowell. 46, 2: 70. 1932 Two new species of Monadenia from northern California. 46, 3: 79-86. 1933 Some notes on an old race of California land snail with descrip- tions of three new forms. 51,1:10-17. 1937 The Mollusks of Lake Tahoe. 52, 1: 34-36. 1938 HANNA, G. Dallas, j^. auth. See Anderson, Frank Marion HARPER, Francis (1886-) The distribution of the Limpkin and its staple food, Pomacea. 50, 2: 37-40. 1936 Further notes on the food of the Limpkin. 55, 1: 3-4. 1941 HARRIS, Gilbert Dennison (1864-) The Paleontological Research Institution, Ithaca, N. Y. 57, 1: 30. 1943 HARRIS, Wray Cypraea tigris Linne in the Hawaiian Islands. 49, 2: 39-41. 1935 HATAI, Kotora, jt. auth. See Nomura. Sitihei HEATH, Harold (1893-1951) Poisonous mussels. 42. 4: 139-- 140. 1929 HEBERT, Clyde H., jt. auth. See Mclean. Richard Alfred 41 Author Index INDEX TO HEDLEY, Charles (1862-1926) A bucket dredge. 37, 4: 118-120. 1924 On a Tanganyika beach. 38,4:109-112. 1925 HELFER, Jacques Richard (1920-) The classification of Cypraeidae. 60, 2: 49-53. 1946 HENDERSON, Junius (1865-1937) Oreohelix maculata, new species. 35, 1: 14-16. 1921 The post-glacial dispersal of Mollusca in the southern Rocky Mountains. 37, 3: 77-81. 1924 Physa cupraeonitens and Physa sayi warreniana in Hot Springs. 38, 3: 105-106. 1925 Reversed snails and reversed human beings. 39, 3: 104. 1926 Mollusk notes from the Northwest. 40, 3: 75-78. 1927 Conchological notes from the Hawaiian Islands. 40. 3: 80-82. 1927 The relation of organic acids to the presence of shells and opercula in sediments. 40, 4: 134-135. 1927 Perna californica Conrad vs. P^. hawaiiensis Pease. 40. 4: 135. 1927 "Newspaper science" in scientific magazines. 40. 4: 135-136. 1927 Some South Dakota Mollusca. 41, 1: 19-20. 1927 A collecting trip to the Northwest. 41, 3: 73-77. 1928 Molluscan provinces in the western United States. 41, 3: 85-91. 1928 Margaritifera vs. Margaritana. 41.3:91. 1928 Mollusca in their relation to the geological history of Soap Lake, Washington. 41.4:118-120. 1928 Interesting additions to the fresh-water Molluscan fauna of Oregon and Washington. 41.4:141. 1928 Polygyra columbiana pilosa. new subspecies. 41, 4: 143. 1928 Correspondence. 42. 2: 64-65. 1928 Some new forms of non-marine Mollusca from Oregon and Washington. 42. 3: 80-82. 1929 Some fossil fresh-water Mollusca from Washington and Oregon. 42, 4: 119-123. 1929 Mrs. Maxwell's centennial collection of shells. 43, 2: 70. 1929 Fresh-water Mollusks in brackish water and in marine and brackish-water formations. 43, 3: 77-79. 1930 Zoogenites and Carychium in Colorado. 43, 3: 104. 1930 Por correction see 43, 4: 138. 1930 Ancient shell "trade routes." 43, 4: 109-110. 1930 Newfoundland a promising conchological field. 44. 1: 9-10. 1930 42 THE NAUTILUS Author Index Ancylus coloradensis. a new name for A. hendersoni Wai;:er. not 1908. 44, 1: 31. 1930 "Upper Cretaceous and Lower Tertiary Gastropoda from Al- berta," by Loris S. Russell. 44.1:33. 1930 "Recent and fossil Viviparidae: a study in distribution, evolu- tion and paleogeography." by B. Prashad. 44. 1: 35-3u. 1930 A new Lymnaeid from Idaho. 44. 3: 75-77. 1931 Variation in Carinifex newberryi (Lea) and Lymnaea utahensis (Call.).44. 3: 77-79. 1931 Oreohelix "growing on trees." 44, 3: 102. 1931 The problem of the Mollusca of Bear Lake and Utah Lake. Idaho-Utah. 44.4:109-113. 1931 Lymnaea (Radix) auricularia L. in Idaho. 44. 4: 143. 1931 Schizothaerus nuttallii and varieties on Puget Sound. 45. 1: 32- 33. 1931 Carinifex jacksonensis. new species, from Wyoming. 45. 4: 133- 134. 1932 Prolonged aestivation of Lymnaeids. 45. 4: 140. 1932 Comments on western Lymnaeidae. 45, 4: 140-141. 1932 The range of Polygyra and of Goniobasis in California. 46. 1. 4-6. 1932 Lampsilis at old New Mexican camp sites. 46, 3: 107. 1933 Mollusca of the Yellowstone Park. Teton Park and Jackson Hole region. 47, 1: 103. 1933 Gyraulus vermicularis albolineatus. new subspecies. 47. 2: 78- 79. 1933 Some western fresh water Mollusks. 47. 3: 86-91. 1934 Notes on western Lymnaeidae. 47. 4: 122-124. 1934 West American species of Goniobasis. with descriptions of new forms. 48, 3: 94-99: 4: 130-134. 1935 Margaritifera and Fluminicola in Wyoming. 48. 3: 107. 1935 Mollusks and the Missouri River. 49. 2: 64-65. 1935 Lymnaea auricularia L. and Ferrissia caurina (Cooper ) in Colorado7 49, 2: 68-69. 1935 Physa ampullacea Gould, Physa nuttallii Lea and Physa Colum- biana Hemphill. 49,3:85-87. 1936 Bulimulus in Texas. 49, 3: 105. 1936 Helisoma ammon (Gould). 50, 2: 41-42. 1936 How some snails survive grass fires. 50, 2: 71-72. 1936 Helix axia Bgt. and Helix lactea Miiller in Florida. 50, 2: 72. 1936 HENDERSON, Junius, jt- auth. See Baker, Frank Collins, and Pilsbry, Henry Augustus HENRARD, Jan Theodoor (1881 -). and KOUMANS, Frederik Petrus Nederlandsche Malacologische Vereeniging. 48, 3: 104. 1935 43 Author Index INDEX TO HERRINGTON, Harry Biggar (1888-) Determining species in Pisidium by the shell. 59, 1: 24-26. 1945 HERRINGTON, Harry Biggar. jt. auth. See Brooks. Stanley Truman HERTLEIN, Leo George (1898-) Pecten (Patinopecten) lohri, new name for Pecten oweni Arnold, a Pliocene species from California. 41, 3: 93-94. 1928 Mollusks and barnacles from Malpelo and Cocos Islands. 46, 2: 43-45. 1932 Gastrocopta munita on South Seymour Island, Galapagos group. 46. 2: 69-70. 1932 Three preoccupied names in the Pectinidae. 47, 2: 62-64. 1933 Notes on the Pectinidae of Hawaii. 49. 1: 27-29. 1935 Three new sections and rectifications of some specific names in the Pectinidae. 50. 1: 24-27; 2: 54-58. 1936. For correction see 50. 3: 106-107. 1937 Note on the range of Pecten caurinus Gould. 51, 4: 144. 1938 Avldition to the range of Pecten caurinus Gould. 54, 2: 68-69. 1940 HERTLEIN, Leo George, and STRONG. Archibald McClure Changes in the nomenclature of two west American marine bi- valve IVlollusks. 58. 3: 105. 1945 HERTLEIN. Leo George, jt. auth. See Hanna. G. Dallas HEWITT, Oliver Harold, ij_. auth. See Ingram, William Marcus HIGGINS, Henry C. (1865-1939) Notes on some species of Cypraea. 40, 4: 129-130. 1927 HILL, Howard Rice (1&89-) Robert Haines Tremper (Obituary). 47, 3: 110-111. 1934 New records of introduced land shells in southern California. 55, 1: 31. 1941 HOWE. Samuel Wilbur A study of the variations ia the radula of a snail with particular reference to the size of the median teeth. 44. 2: 53-66. 1930 44 THE NAUTILUS Author Index HOWELL, Benjamin Franklin (1890-). and RICHARDS, Horace Gardiner The fauna of the "Champlain Sea" of Vermont. 51, 1: 8-10. 1937 HUBRICHT, Leslie A new Ansuispira from Kentucky. 51. 4: 131. 1938 The Ozark Amnicolas. 53,4:118-122. 1940 The snails of Ted Cave. Tennessee. 54. 1: 10-11. 1940 A subterranean snail from an artesian well. 54, 1: 34-35. 1940 A natural introduction of Physa. 54, 3: 107. 1941 The cave Mollusca of the Ozark region. 54, 4: 111-112. 1941 A new locality for Amnicola proserpina Hubricht. 55. 3: 105. 1942 Hunting Stenotrema hubrichti. 56,3:73-75. 1943 Notes on the sex ratios in Campeloma. 56, 4: 138-139. 1943 HUMES, Ralph Hamilton (1901-) The Glade fires. 59. 1: 33. 1945 IHERING. Hermann von (185U-1930) On Mycetopoda falcata Hlggins. 39,4:116. 1926 Two new species of shells from Uruguay. 41, 3: 95-97. 1928 INGRAM, William Marcus (1913-) A reduction of Cyprea annae Roberts and Cyprea polita Roberts to synonymy with Cyprea semiplota Mighels. 50. 2: 51-52. 1936 The family Cypraeidae in the Hawaiian Islands. 50. 3: 77-82. 1937 Cypraeidae from Christmas, Palmyra. Washington, and Fanning Islands. 51, 1: 1-3. 1937 Notes on the Cowry. Cypraea spadicea Swainson. 52. 1: 1-4. 1938 Cypraeidae from Guam. 52. 1: 5-7. 1938 Cypraeidae from American Samoa with notes on species from Palmyra Island. 52.3:103-105. 1939 Atys semistriata Pease in Kaneohoe Bay. Oahu. Hawaiian Islands. 52, 4: 117-120. 1939 A new fossil cowry from North Carolina. 52.4:120-121. 1939 A new cowry Cypraea jensostergaardi. 52. 4: 122-123. 1939 Remarkable calcium deposits in Eunaticina oldroydii (Pall). 53, 4: 135-136. 1940 A method for holding Mollusks to be dissected.53. 4: 130. 1940 Survival of fresh water Mollusks during periods of dryness. 54. 3: 84-87. 1941 45 Author Index INDEX TO Daylight activity of land Mollusks. 54,3:87-90. 1941 For Errata see 55, 1: 32. 1941 Aquarium behavior of Eunaticina oldroydii (Dall). 54, 4: 136-140. 1941 Copulation and egg laying of Mesodon thyroidus (Say) at Ithaca, New York. 54, 4: 143. 1941 Utilization of stones for shelter by land snails. 55. 1: 13-15. 1941 Errata: in an article. "Daylight activity of land Mollusks." 55, 1: 32. 1941 A winter thaw as a factor in reducing a fresh-water Mollusk population. 55, 1: 32. 1941 A sinistral Succinea ovalis. 55. 2: 67. 1941 The first record of the slug Deroceras reticulatum (Miiller) in the United States. 55, 2: 67-68. 1941 Food habits of Haplotrema minimum Ancey and habits of asso- ciated Mollusks on the Mills College campus. 55. 3: 98-102. 1942 Habitat data on Helminthoglypta tudiculata (Binney) at Balboa Beach, California. 56, 2: 70-71. 1942 The role of vacant shells in snail hibernation. 56. 2: 71-72. 1942 Comments on F. A. Schilder's "Cypraeacea from Hawaii." and Schilder and Schilder's "Prodrome of a monograph on living Cy- praeidae." 57, 1: 22-27. 1943 Fpiphragm removal and fecal string deposition by Helminthoglyp- ta nickliniana (Lea). 57. 2: 71-72. 1943 Tropical central Pacific Cypraeidae. 57, 3: 81-86. 1944 Snails hoarded by Blarina at Ithaca. New York. 57, 4: 135-137. 1944 Shell cleaning and epiphragm removal by Triodopsis albolabris (Say). 57, 4: 138-141. 1944 Notes on winter habits of land Mollusks at Ithaca, New York. 58, 1: 25-27. 1944 An extension of the range of Cypraea rashleighana Melvill. 58, 3: 106-107. 1945 Longevity in the giant west coast slug, Ariolimax columbianus (Gould). 58, 3: 107. 1945 Land Mollusca of the Edmund Niles Huyck Preserve, Rensselaer- ville. New York. 59,3:87-93. 1946 A contribution on the shell development of Cypraea mus Linnaeus. 59,4:113-115. 1946 Deroceras agreste feeding on Armadillidium vulgare. 6U , 1 : 34-35. 1946 INGRAM, William Marcus, and COPE. Mrs. Helen Marie Adolph Habitat observations of Ariolimax columbianus Gould. 56, 3: 96-97. 1943 46 THE NAUTILUS Author Index INGRAM, William Marcus, and HEWITT, Oliver Harold Sporocysts of Leucochloridium in Succinea from New York State. 56, 3: 92-95. 1943 INGRAM, William Marcus, and KENYON, Karl Walton Cypraeidae from the Admiralty Islands with therapy notes on their uses. 58.4:129-134. 1945 Cypraeidae from Espiritu Santo Island, New Hebrides. 58, 4: 143-144. 1945 IREDALE. Thomas (1880- ) The status of Amicula. 39. 2: 47-49. 1925 W. H. Hargraves (Obituary). 39, 2: 68-69. 1925 R. Murdoch (Obituary). 39. 2: 69-70. 1925 The last word on Ancylastrum. 39,4:114-115. 1926 W. Lewis May (Obituary). 39. 4: 140-141. 1926 John Brazier, 1842-1930 (Obituary). 44, 3: 95-96. 1931 Abnormal Loricates: the earliest American record. 47, 4: 136. 1934 Fatal case of attack by cone. 49,2:41. 1935 A new Amphidromus from Burma. 57, 1: 16. 1943 JACKSON, Ralph Waldo (1894-) Epiphragmophora a tree climber. 36.4: 144. 1923 Snail killed by weed. 36.4:144. 1923 Otala vermiculata Muller and O. lactea Miiller in Texas. 57, 3: 105. 1944 JACOBS. Sylvia Color variations in Pedicularia californica Newcomb. 59. 4: 124-126. 1946 JACOBSON. Morris Karlmann (1906-) Marine Mollusca of New York City. 56, 4: 139-144. 1943 A supplementary note on the MoDusks of New York. 57, 1: 31- 32. 1943 Variations of Spissula solidissima Dillwyn. 57. 3: 100-104. 1944 A molluscan mass grave. 57, 4: 133-135. 1944 A list of Molluscs from Warren County, New York. 59. 1: 26- 29. 1945 Triodopsis albolabris traversensis Leach. 59. 2: 68-09. 1945 JACOBSON. Morris Karlmann and SMIT. Walter And now in Rockaway Beach! 60, 1: 2-4. 1946 47 Author Index INDEX TO JACOT, Arthur Paul Review of marine Mollusca found about New York City. 36, 2: 59-61. 1922 On the freshwater shells of Monroe, Connecticut. 37. 1: 28-31. 1923 Marine Mollusca of the Bridgeport. Connecticut, region. 38. 2: 49-51. 1924 Range of Donax variabilis. 42.4:142-143. 1929 JEWELL. Dorothea Dowd Observations on reproduction in the snail Goniobasis. 44, 4: 115-119. 1931 JOHNSON. Charles Williston (1863-1932) Oil injuring oysters. 35. 1: 28. 1921 "A revision of the Australian Tridacna." by Charles Hedley. 35. 2: 6U-61. 1921 The Hinkley and Nason collections. 35. 2: 62. 1921 Crepidula fornicata in the British Isles. 35.2:62-64. 1921 "The Pliocene Mollusca of Great Britain." by F. W. Harmer. 35, 3: 98. 1922 "Some marine Molluscan shells of Beaufort and vicinity." by Arthur P. Jacot. 35, 3: 99. 1922 Li max flavus at Bar Harbor, Maine. 35. 4: 134. 1922 Recent Mollusca of the Gulf of Mexico, and Pleistocene and Pliocene species from the Gulf states. Part 2. Scaphopoda. Gastropoda. Amphineura. Cephalopoda." by Carlotta Joaquina Maury. 35, 4: 135-136. 1922 "The life of the Pleistocene or Glacial period." by Frank Collins Baker. 35. 4: 136. 1922 Fossil shells from the St. Lucie Canal. Florida. 36. 1: 10-11. 1922 "The Miocene of northern Costa Rica." by A. A. Olsson. 36. 1: 35-36. 1922 "Revision of W. M. Gabb's Tertiary Mollusca of Santo Domingo.' by H. A. Pilsbry. 36. 1: 36. 1922 "Tlie European pileworm, a dangerous marine borer in Barne- gate Bay, New Jersey," by T. C. Nelson. 36, 2: 67-68. 1922 "The story of Mollusks and of the shells they live in." by Margaret G. Sherman. 36,2:68. 1922 "The Miocene of northern Costa Rica [Part 2|." by A. A. Olsson. 36, 2: 68. 1922 "A monograph of the American shipworms," by Paul Bartsch. 36, 2: 68. 1922 "Variations in the dog whelk. Thais (Purpura auct.) lapillus." by Harold S. Colton. 36. 2: 69. i922 48 THE NAUTILUS Author Index "Variation in fresh-water Mussels," by Gordon H. Ball. 36, 2: 69. 1922 "The Anculosae of the Alabama River drainage," by Calvin Good- rich. 36, 2: 69-70. 1922 Silas C. Wheat (Obituary). 36, 3: 103-104. 1923 Arion hortensis Drap. in Maine. 36, 3: 105. 1923 Viviparus japonicus v. Martens from another locality in Boston. 36, 3: 105. 1923 "Notes on the radula of the Helicinidae." by H. B. Baker. 36, 3: 106. 1923 "The Molluscan fauna of the Big Vermillion River, Illinois," by Frank C. Baker. 36, 3: 106. 1923 "The Champlain Sea," by Winifred Goldring. 36, 3: 107. 1923 "Fossil Chitons of western North America," by S. S. Berry. 36, 3: 107-108. 1923 "Biology and economic value of the sea Mussel, Mytilus edulis," by Irving A. Field. 36, 3: 108. 1923 "Observations on the rate of growth of the shells of lake-dwelling fresh-water Mussels," by N. M. Grier. 36, 3: 108. 1923 "The glory of the sea," by Roy Waldo Miner. 37, 2: 72. 1923 Coquina bouillon. 38, 1: 32. 1924 The purple dye of Mollusks. 38. 2: 65. 1924 "Rectifications of nomenclature," by G. Dallas Hanna. 38. 2: 66. 1924 The emendation of scientific names. 39, 1: 2*7-28. 1925 The exhibition of Mollusca in a museum. 39, 2: 37-40. 192 5 "Note on the Atlantic Coast species of Plicatula and note on the species of Petricolaria of the eastern coast of the United States," by W. H. Dall. 39, 2: 72. 1925 A list of the Mollusks collected by Mr. Owen Bryant along the coasts of Labrador, Newfoundland and Nova Scotia. 39. 4: 128- 135: 40, 1: 21-25. 1926 Fdward Sylvester Morse (Obituary). 39, 4: 135-137. 1926 Spirula spirula (Linne).39. 4: 141-142. 1926 "Tertiary fossils dredged off the northeastern coast of North America, " by Wm. H. Dall. 39.4:142. 1926 The abundance of Crepidula fornicata L. at Nantucket, Mass. 40, 2: 68. 1926 Helix nemoralis in Massachusetts. 4o, 3: 93-94. 1927 Addison Emery Verrill (Obituary). 40, 4: 111-112. 1927 The effects of changes in nomenclature. 40, 4: lo8. 1927 Further notes on the colony of Helix nemoralis in Massachusetts. 41, 2: 47-49, 1927 Jesse Wedgwood Mighels (Obituary). 41 , 2: 65-69. 1927 "Small shells from dredgings off the southeast coast of the United States by the United States Fisheries steamer 'Albatross' in 1885 and 1886," by W. H. Dall. 41. 2: 71. 1927 49 Author Index INDEX TO "A review of Australian helmit shells," by Tom Iredale. 41. 2: 72. 1927 A review of the New England limpets. 41, 4: 109-117. 1928 Stuart Weller (Obituary). 41, 4: 137-138. 1928 Donax fossor. not Donax variabilis. 41 . 4: 140. 1928 The oyster drill. 41,4:140-141. 1928 A review of certain species of the Olividae. 42. 1: 6-13. 1928 Fred L. Button (Obituary). 42. 1: 33-34. 1928 Urosalpinx cinerea Say in England. 42. 2: 68. 1928 "Cephalopod adaptations - The record and its interpretation," by Edward W. Berry. 42,2:71-72, 1928 Are certain marine Pelecypods becoming locally extinct? 42, 3: 82-86. 1929 Acmaea testudinalis (Miill.) 42,3: 103. 1929 "Contribution a I'etude des Nudibranches Neo-Caledoniens." by Jean Risbec. 42,3:108. 1929 "Fossil marine Mollusks of Oahu," bv Jens M. Ostergaard. 42, 4: 143-144. 1929 Further notes on Donax fossor and Donax variabilis Say. 43. 1: 28-30. 1929 The egg-capsules of Fasciolaria gigantea Kiener. 43. 2: 63. 1929 Martyn's Universal Conchologist. 43. 2: 71-72. 1929 Charles Johnson Maynard (Obituary). 43, 3: 101-103. 1930 "The Florida tree snails of the genus Liguus." by Charles T. Simpson. 43, 3: 107. 1930 "Shells of Peitaiho," by Aniadeus W. Grabau and Sohtsu G. King. 43. 3: 108. 193u The Humphrey collection. 43.4:140-141. 1930 The giant clam (Tridacna gigas) 43. 4: 141. 1930 The variations of Aporrhais occidentalis Beck. 44. 1: 1-4. 1930 James Henry Emerton (Obituary). 44. 3: 97-98. 1931 "Gabb's California Cretaceous and Tertiary type Laniellibraiichs. by Ralph B. Stewart. 44. 3: 102-103. 1931 "Marine Mollusca of Guadelupe Island. Mexico, marine Mollusca of the Revillagigedo Islands. Mexico, and marine Mollusca of the Tres Marias Islands. Mexico." by A. M. Strung and G. D. Hanaa. 44, 3: 103. 1931 "Influence of the glacial period in changing the character of the Molluscan fauna of North America." by F. C. Balder. 44. 3: 107. 1931 Lima inflata and its nest. 44.4:126. 1931 "Cephalopods of the genus Aturia from westerii North: America." by Hubert G. Schenck. 44,4:140-141. 1931 "The land snail genus Haplotrema." by H. Burrini;ton Baker. 44, 4: 142. 1931 50 THE NAUTILUS Author Index New fossil species of the genus Epitonium from South Carolina. 45. 1: 6-10. 1931 Modiolus Lam., 1799, versus Volsella Scop., 1777. 45, 1: 33-34. 1931 Archaeo-conchological Caribbean expedition of 1931. 45, 1: 34. 1931 "Catalogue of the marine Pliocene and Pleistocene Mollusca of California, together with a summary of the stratigraphic rela- tions of the formations involved." by U. S. Grant, IV, and Hoyt Rodney Gale. 45, 3: 107-108. 1932 Some notes on the New England species of Tellina. 45, 4: 109- 111. 1932 Truman Heminway Aldrich (Obituary). 46, 1: 34-35. 1932 JOHNSON, Charles Williston, jt. auth. See Pilsbry, Henry Augustus JOHNSON. Richard Irwin (1925-) Viviparus contectoides Binney in Massachusetts. 54. 4: 141. 1941 Radix auricularia (Linn.) in Vermont. 58, 4: 144-145. 1945 JOHNSTON, Edward C. (1887-) Fish-catching mussels. 35, 4: 133. 1922 JONES, David Tracy (1900-) Notes taken in the vicinity of Vinton, Iowa. 43, 4: 118-119. 1930 Red Cedar River collections (Iowa) 44, 3: 87-91. 1931 Mollusks in the vicinity of Yankton, South Dakota. 45, 4: 115- 118. 1932 Burrowing of snails. 48.4:140-142. 1935 Mollusks of the Oquirrh and Stansbury Mountains in Utah. 54. 1: 27-29. 1940 JORDAN, Eric Knight (1903-1926) A new species of Crassatellites from the Gulf of California. 46, 1: 9-10. 1932 KEEN, Angeline Myra (1905-) Edgar Allen Poe's conchological text. 50, 2: 42-44. 1936 "Pyramidellidae from Siogama Bay, Northeast Honsyu, Japan," by Sitihei Nomura. 50, 3: 108. 1937 Viability of a marine snail. 56. 1: 34-35. 1942 A new Gastropod of the genus Episcynia Morch. 60. 1: 8-11. 1946 51 Author Index INDEX TO KELSEY. F. W. Collecting on an abalone. 36, 1: 17-18. 1922 KEMP. Jack T. , jt. auth. See Cahn. Alvin Robert KENDALL. C. E. Y. Occurrence of opercula in shore deposits. 40, 3: 99-100. 1927 KENNAPD. Alfred Santer (1870-) . WOODWARD, A. L. S.. and WOODWARD, Bernard Barham The type of Ancylastrum is Ancylus fluviatilis, Muller. 38, 3: 83-85. 1925 On the Helix perspectiva of Megerle von Muhlfeld versus that of Say. 38, 3: 85-86. 1925 KENYON, Karl Walton (1918-). jt. auth. See Ingram, William Marcus KJERSCHOW-AGERSBORG. K. P. See Agersborg. Helmer Pareli de Wold Kjerschow KOESTNER. Elmer Joseph,and SCHNEIDER. Richard A. Notes on the snail Humboldtiana fortis Pilsbry. 54, 2: 47-49. 1940 KOUMANS. Frederick Petrus, jt. auth. See Henrard, Jan Theodoor KUTCHKA. Gordon MacMillan See MacMillan. Gordon Kutchka LANG. Herbert Ampullarius and Rostrhamus at Georgetown. British Guiana. 37, :■: 73-77. 1924 LANGFORD. Daniel B. Hunting Eulota (Karaftohelix) fiscina Fulton, in Saghalien. 41. 2: 37-4U. 1927 LA ROCQUE. Joseph Alfred Aurele (1909-). and OUGHTON. John Francis Robert Latchford. 1856-1938 (Obituary). 53, 3: 99-103. 1940 52 THF NAUTILUS Author Index LATCHFORD, Francis Robert (1856-1938) Lymnaea (Bulimnaea) megasoma Say. 40, 4: 136-137. 1927 LEONARD, Arthur Byron (1904- ) Three new Pupillids from the Lower Pleistocene of central and southwestern Kansas. 60, 1; 20-24. 1946 LERMOND, Norman Wallace (1861-1944) Crenella faba Muller on the coast of Maine. 36.3:104. 1923 Correspondence from Florida. 40, 3: 100. 1927 LINDERMAN,Leona Long Beach Shell Club semiannual field trip. 55, 3: 103-104. 1942 LINDHOLM, W. A. On the designation of genotypes. 41, 3: 97-98. 1928 LOWE, Herbert Nelson (1880-1936) Shell notes from Italy. 39, 1: 26-27. 1925 Hunting Helices in California. 41,3:77-79. 1928 Correspondence. 43,4:135-138. 1930 Shell collecting on the west Mexican coast. II. 44, 1: 24-27. 1930 A new land shell from San Benito County, California. 44. 2: 42- 43. 1930 What is Roperia roperi Dall? With notes on Turridae and Columbellidae. 45, 2: 51-52. 1931 Note on the west coast Zirfaea. 45, 2: 52-53. 1931 Shell collecting in west Central America. 45, 3: 73-82. 1932 On four new species of Epitonium from western Central America 45. 4: 113-115. 1932 For correction see next item. [Epitonium strongi preoccuoiedl. 46, 1: 36. 1932 The cruise of the "Petrel." 46, 3: 73-76; 4: 109-1 15. 1933 At the head of the Gulf of California. 47,2:45-47. 1933 On the Sonoran side of the GulL 48, 1: 1-4; 2: 43-46. 1934 LOWE, Herbert Nelson, jt. auth. See Pilsbry, Henry Augustus LUTZ. Adolpho Planorbis immunis n. n. 37. 1: 36. 1923 LY^L'\N, Frank B. My discovery and observation of the living Xenophora in Florida waters. 49. 4: 141-142. 1936 53 Author Index INDEX TO "It was a great day." 50,1:29-30. 1936 Conus mus Hwass., in Lake Worth, Florida. 50, 3: 103-104. 1937 Food of Cassis madagascariensis. 51. 1: 34. 1937 Hydatina physis (L.) in Lake Worth. Florida. 52. 1: 33; 2: 72. 1938 MACFARLAND, Frank Mace (1869-1951) The Acanthodorididae of the California coast. 39. 2: 49-65. 1925; 3: 94-103. 1926 Drepanida, new name for Drepania Lafont, preoccupied. 45, 1: 31-32. 1931 MACKAY, Donald Cope land Gibson (1905-) Gastropod shells inhabited by Hawaiian hermit crabs. 58. 4: 120-124. 1945 MACMILLAN, Gordon Kutchka Dermestid beetles a nuisance to conchologic collections. 47, 4: 149-15L 1934 New varieties of Anguispira and Discus. 52, 1: 11-14. 1938 A snail "taxi." 52,3:94-95. 1939 Land snails new to the fauna of Pennsylvania. 53. 2: 47-49. 1939 A new variety of Polygyra appressa (Say) 53, 3 : 98. 1940 Discus patulus angulatus Kutchka... preoccupied. 53. 4: 143. 1940 Notes on Anguispira and Discus. 55, 1: 21-23. 1941 Bulimulus alternatus mariae (Albers) in Alabama. 55, 1: 32-33 1941 In the field in Utah. 55, 2: 68-69. 1941 The "apertural ridge" in Bulimulus. 57, 3: 98-99. 1944 Vertigo parvula Sterki. 57,4:127-129. 1944 A small collection of land shells from Nebraska. 57. 4: 130-132. 1944 An overlooked description of a North American Gastropod. 57, 4: 132-133. 1944 Notes on some southwestern Pupillidae. 59, 4: 121-124. 1946 Helicina hartmani nom. nov. 60. 1: 33. 1946 MACMILLAN, Gordon Kutchka, jt. auth. See Brooks, Stanley Truman MAGRUDER, Samuel Rossington (1906-) Notes on the life history of Pleurocera canaliculatum undu latum Say. 48, 1: 26-28. 1934 54 THE NAUTILUS Author Index Record of a crystalline style in two fresh water Gastropods. 48, 3: 101-102. 1935 MALONE, J. E. The Kuro Shio and the American coast. 45. 4: 137. 1932 MANT. Charles Francis (1874- ) Shore reef hunting in the Hawaiian Islands. 35. 3: 82-84. 1922 Observations on landshells of Stanley Park. Vancouver. B. C. 36, 3: 106. 1923 Mollusca from the dredging operations at Kewalo Harbor. Hono- lulu, 1921. 36. 4: 120-123. 1923 MARSH, Phil Lewis The Stenotrema nionodon group of Polygyridae in Michigan. 54. 4: 113-116. 1941 Zoogenetes harpa (Say) in the Rocky Mountains. 55. 3: 97-98. 1942 MARSHALL, William Blanchard (1865-) A large Quadrula heros Say. 36.1:25-27. 1922 Strophocheilus (Borus) globosus Martens. 42.1:21-22. 1938 Mollusks below Conowingo Dam, Maryland. 43, 3: 87-88. 1930 Type of Anodontites Brugiere. 43, 4: 128-130. 1930 Lampsilis ventricosus cohongoronta in the Potomac River. 44. 1: 19-21. 1930 Former and present terms used in describing fresh-water mussels. 44. 2: 41-42. 1930 Bulimulus hendersoni. n. n. 44, 3: 100. 1931 Ruganodontites. a new subgenus of South American pearly. fresh-water mussels. 45, 1: 16-20. 1931 Monocondylaea costulata Moricand. 45.2: 55-58. 1931 I impets bored by Natica? 46, 2: 45-47. 1932 . Bulimus tentaculatus (L.) (Bithynia tentaculata) living in the Potomac River. 46. 4: 141-142. 1933 The pedal protractor muscle scar in shells of Naiades. 47. 2: 72-76. 1933 MATTESON. Ellen G. Rhode Island is invaded. 59. 2: 47-48. 1945 MATTOX, Norman Thomas (1910-) Two new snails of the genus Campeloma from Ontario. 54. 1: 12-17. 1940 MAZYCK. William Gaillard (1846-1942) Concerning Helix calcarea Pfr. 35.3:100. 1922 55 Author Index INDEX TO MCCONNELL, Duncan (1909-) Notes on Helix nemoralis at Lexington, Virginia. 50. 1: ]5-16„ 1936 MCGINTY, Paul Ladue (1906- ) A canoe trip in the Ten Thousand Islands to collect Liguus. 50. 1: 1-8. 1936 MCGINTY, Paul Ladue, and MCGINTY. Thomas Ladue Liguus pictus Reeve. 60,2:43-46. 1946 MCGINTY, Thomas Ladue (1907-) A new Mindoro land shell. 46, 2: 65. 1932 A new Helicostyla from the Philippine Islands. 48. 2: 68-69. 1934 I iguus at Northwest Cape Sable. Monroe County, Florida. 50. 2: 71. 1936 A double -lipped Strombus. 50.4:140. 1937 Acanthochitona pygmaea (Pils.) 50. 4: 141. 1937 Oxystyla from Western Mexico. 52. 3: 93-94; 53. 1: 4-7. 1939 Terebra flam me a Lamarck, a new record for the United States. 52, 4: 109-110. 1939 Collecting on a coral reef in Florida. 53,2:37-39. 1939 littorina minima fWood). 53, 2: 68. 1939 New land and marine Tertiary shells from southern Florida. 53, 3: 81-84. 1940 A new naticoid snail from Florida. 53, 4: 110-111. 1940 New marine shells dredged off Palm Beach, Florida. 54. 2: 62- 64. 1940 Some marine species hitherto unreported from Florida, 54. 2: 71. 1940 Solarium bisulcatum Orbigny, 1845 - A change of genus. 54, 3: 106-107. 1941 Description of a new Teinostoma. 58, 4: 142-143. 1945 A new Florida Strombus. S. gigas verrilli. 60. 2: 46-48. 1946 MCGINTY. Thomas Ladue. jt. auth. See McGinty. Paul Ladue. Pilsbry. Henry Augustus. Schwengel. Jeanne Sanderson MCGLAMERY. Winnie An association of fresh water shells from Dunlap's Creek, Alleghany County, Virginia. 42.4:140-141. 1929 MCLANF. William A. See McL ane, William McNair 56 THE NAUTILUS Author Index MCLANF. WilUam McNair (1919-) Poniacea paluaosa. a predator on the brown darter. 52, 4: 141- 142. 1939 MCLEAN. Richard Alfred (1912-) Cuttle bone for cultures of Helix nemoralis. 48. 4: 142. 1935 Panomva arctica Lamarck. 49.1:34-35. 1935 A new deep-water Lucina from off Maryland. 49. 3: 87. 1936 Panope bitruncata Conrad at Sanibel. Florida. 49. 3: 104. 1936 Some marine bivalves from the Bahama Islands. 49. 4: 116- 119. 1936 Note on the genus Lucina in the western Atlantic. 52. 3: 88-89. 1939 Ostrea virginica Gmelin from Cape Breton Island. 52. 3: 107. 1939 The sculpture of inaequivalve Mollusks. 55. 4: 142-143, 1942 Agriodesma. 56. 1: 33. 1942 New recruits for conchology. 59. 3: 106-107. 1946 The blackened shells of East Coast beaches not necessarily fossil. 60. 1: 32-33. 1946 MCLEAN, Richard Alfred, and HEBERT. Clyde H. A list of marine Mollusks from the Admiralty Islands. 60. 2: 54-57. 1946 MCLEAN, Richard Alfred, and SCHWENGEL, Jeanne Sanderson A new Modiolaria from Florida. 58. 1: 16-17. 1944 MCLEAN, Richard Alfred, jt. auth. See Zetek. James MEANWELL, Ruth Henry Clifden Burnup. Born April 21. 1852. died April 23. 1928. (Obituary). 42, 2: 62-63. 1928 MERRICK. Amanda Dickson Some quantitative determinations of glochidia. 43. 3: 89-91. 1930 MERRIMAN. Daniel (1908-) The occurrence of Tethys willcoxi in New England waters, and another record for this locality. 50. 3: 95-97. 1937 MEYER. Emmett Finding a left-handed Campeloma. 41.3:107. 1928 57 Author Index INDEX TO MEYER. Karl Friederich (1884-) Mussel poisoning in California. 42. 3: 100-101. 1929 MOORE, Merrill (1903-) A psychiatrist's note on shells. 55. 3: 75-77. 1942 A momentary thought about the war. 56. 3: 108. 1943 MORRISON, Joseph Paul Eldred On the occurrence oi Hendersonia in Crawford County. Wis- consin. 43, 2: 41-45. 1929 Acella haldemani ("Desh." Binney).46. 3: 107. 1933 Notes on the genera Potamopyrgus and Lyrodes. 52, 3: 87-88. 1939 Two new species of Sayella with notes on the genus. 53, 2: 43- 45. 1939 An unusual cave deposit. 53. 2: 45-47. 1939 The type locality of Cochliopa rowelli (Tryon). 53. 2: 67. 1939 The systematic position of the genus Fkadanta Rao. 53. 2: 67- 68. 1939 Another Pleistocene snail is not extinct. 53. 4: 123. 1940 A new species of Fluminicola with notes on "Colorado desert" shells, and on the genus Clappia. 53, 4: 124-127. 1940 Notes on the subgenera of Valvata. 53, 4: 140. 1940 Haldeman's 1840 supplement. 54. 2: 64-66. 1940 Notes on the reproductive morphology of Thais. 56. 3: 103-104. 1943 Oreohelix east of the Mississippi. 56. 3: 104. 1943 Two new Orinoco Unionids. with notes on Unio granadensis Lea and U. patulus Lea. 57.1:14-16. 1943 A new type of fresh water clam from British Guiana. 57. 2: 46- 52. 1943' Durangonella, a new hydrobiine genus from Mexico, with three new species. 59,1:18-23. 1945 One hundred six years of Amnicola. GO. 3: 84-87. 1947 A new !iame in Panama Hydrobiinae. CO, 3: 102. 1947 Concerning "Hydrobia" jenkinsi E. A. Smith. 60. 3: 103-104. 1947 MORRISON. Joseph Paul Eldred. j^. auth. See Bartsch. Paul MORSE, Edward Sylvester (1838-1925) An abnormal shell of My a arenaria. 36, 1: 28-30. 1922 MOZLEY. Walter Alan (1904-) Molluscs from the Manitoba-Ontarit) bounLJary. 39. 4: 121-128. 1926 For addenda see 40, 1: 32. 1926 58 THE NAUTILUS Author Index Preliminary list of the Mollusca of Jasper Park, Alberta. 40, 2: 53-56, 1926" Some mollusks from western Canada. 40. 2: 56-63. 1926 New records of western Canadian Mollusca. 42. 1: 13-18. 1928 Note on some fresh water Mollusca inhabiting temporary ponds in western Canada. 42.1:19-20. 1928 Further records of western Canadian Mollusca. 43. 3: 7y-85. 1930 Notes on western Canadian Mollusca — Planorbis campanulatus wisconsinensis Winslow. 46. 2: 59-62. 1932 MUELLER, Justus Frederick (1902-). jt. auth. See Grier, Norman MacDowell [NELSON. Thurlow Christian] (1890-) The attachment of oyster larvae. 39, 1: 30. 1925 NETTING, Morris Graham (1904-) The viability of a snail in a killing solution. 49. 3: 104-105. 1936 NICHOLSON. John Larkin (1906- ). it. auth. See Hanna, G. Dallas NICOL, David Observations on Pseudomonotis, a late Paleozoic Pelecypod. 57. 3: 90-93. 1944 NOLAND. Lowell Evan (1896-). and REICHEL. Eleanor Life cycle of Lymnaea stagnalis completed at room tempera- ture without access to air. 57. 1: 8-13, 1943 NOMURA, Sitihei, and HATAI, Kotora A note on the fossil marine fauna dredged from the Japanese seas. 50. 3: 89-95. 1937 NORTON, Arthur H. Size of the giant scallop (Pecten grandis Sol., P. magellanicus Gmel.).44. 3: 99-100. 1931 The status of Pomatia aspersa (Muller) in Maine. 49. 4: 113- 114, 1936 NYLANDER, Olof Olsson Egg-capsules of Buccinum undatum L, 35, 2: 33-34. 1921 A visit to Sweden. 38.1:1-4. 1924 Nadeau L.ake. Fort Fairfield, Aroostook County, Maine. 41, 3: 84-85. 1928 59 Author Index INDEX TO Acmaea testudinalis Miill. in Cabscook Bay, Eastport. Maine. 42, 2: 38-39. 1928 The Valvata of Aroostook Co., Maine. 44, 1: 30-31. 1930 Lampsilis radiata Gmel. in Aroostook County, Maine. 44, 2: 69-70. 1930 Marl deposit in Houlton, Aroostook County, Maine. 54, 4: 143- 144. 1941 Marl deposit in Bonaventure, north of Bay Chaleur, Quebec, Canada. 54, 4: 144-145. 1941 In Nova Scotia. 56.3:105-106. 1943 Marl deposits in Bonaventure, north of Bay Chaleur, Quebec, Canada, and in Houlton, Maine. 57, 2: 45-46. 1943 ODHNER, Nils Hjalmar (1884-) Sphaeriids from the Aleutian Islands. 52, 3: 79-84. 1939 O'DONOGHUE, Charles Henry (1885-) Notes on the taxonomy of nudibranchiate Mollusca from the Pacific Coast of North America. I. On the identification of Cavolina (i. e. Hermissenda) crassicornis of Eschscholtz. 35, 3: 74-77. 1922 OLDROYD. Ida Mary Shepard (Mrs. Tom Shaw Oldroyd) (1856- 1940) Description of a new Coralliophlla. 42.3:98-99. 1929 Two new west American species of Nuculanidae. 49, 1: 13-14. 1935 OLDROYD. Ida Mary Shepard. and GRANT. Ulysses S.. IV A Pleistocene molluscan fauna from near Goleta. Santa Barbara County. California. 44. 3: 91-94. 1931 OISSON. Axel Adolf (1889- ) Notes on marine Mollusks from Peru and Ecuador. 37, 4: 120- 139. 1924 Mactra alata Spengler var. subalata Morch. on the west coast. 48. 3: 105. 1935 OLSSON, Axel Adolf, jt. auth. • See Pilsbry, Henry Augustus ORCUTT. Charles Russell (1864-) Mollusks dredged from San Diego Bay. 36, 1: 33-34. 1922 ORTMANN, Arnold Edward (1863-1927) Some Central American species of Naides. belonging to or allied to the genus Elliptio. 35. 1: 24-27. 1921 60 THE NAUTILUS Author Index The anatomy and taxonomy of certain Unioninae and Anodonti- nae from the Gulf drainage. 36, 3: 73-84; 4: 129-132. 1923 Notes on the anatomy and taxonomy of certain Lampsilinae from the Gulf drainage. 37; 2: 56-60. 1923; 3: 99-105; 4: 137-144. 1924 Helix nemoralis L. in Lynchburg, Va. 39. 3: 73-74. 1926 Unionidae from the Reelfoot Lake region in west Tennessee. 39. 3: 87-94. 1926 OPTMANN. Arnold Edward, and WALKER, Bryant A new genus and species of American Naiades. 36. 1: 1-6. 1922 ORTON. James Herbert (1884-) Is the American slipper-limpet (Crepidula fornicata) an oyster pest? 40. 3: 102-103. 1927 OSTERGAARD, Jens Mathias Distribution of fossil oysters of Hawaii. 50, 3: 88-89. 1937 OSWALD. Olaf Inheritance of direction of coil in Achatinella. 43. 4: 130-131. 1930 OUGHTON. John Notes on Hygromia striolata (Pfr.) at Toronto. Canada. 51. 4: 137-140. 1938 Valvata piscinalis (Miiller) in the Great Lakes. 52. 1: 30-32; 2: 60-62. 1938 An observation on Bulimnea megasoma (Say). 52. 3: 106-107. 1939 Land Molluscs collected at Hebron. Labrador, and Lake Harbour. South Baffin Island. 53.4:127-131. 1940. A visit to the arctic of eastern Canada. 54, 1: 1-6. 1940 Deroceras on Baffin Island. 55.1:30-31. 1941 Great Slave Lake. 58. 3: 73-79. 1945 Non-chonchological synonymy. 58. 4: 143. 1945 OUGHTON. John. jt. auth. See La Rocque. Joseph Alfred Aurele OVER. William Henry (1866-) Additional records of South Dakota Mollusca. 41. 3: 92-93. 1928 61 Author Index INDEX TO PALMER, Katherine Evangeline Hilton Van Winkle (Mrs. Ephraim Lawrence Palmer) (1895-) Marquis de Gregorio's Claiborne types. 50. 3: 100. 1937; 59, 1: 34-35. 1945 Notes on the name Litiopa melanostoma Rang and distribution of the species. 55. 4: 128-130. 1942 Litiopa melanostoma Rang, a correction of distribution. 58, 2: 70-71. 1944 Molluscan types in the Carpenter collection in the Redpath Museum. 58. 3: 97-102. 1945 PARODIZ. Juan Jose Four new species of Spixia from Argentina. 54, 3: 92-95. 1941 PATTERSON. Alfred Haynes (1899- ) Shell collecting in the Bahamas. 58. 2: 37-40. 1944 PENN. George Henry. Jr. (1918-) A study of the life cycle of ihe fresh-water Mussel. Anodonta grandis,' in New Orleans. 52. 3: 99-101. 1939 PERRY, Louise M. Conus me 1 villi Sowerby, and a new species of the Lamellariidae. 53, 2: 40-42. 1939 A new Tellin of the subgenus Angulus, a new Lamellaria and a new subspecies of Crassispira, from southwest Florida. 53, 3: 79-81. 1940 Peculiar Oliva. 54, 1: 32-33. 1940 PERRY. Louise M., SCHWENGEL, Jeanne Sanderson, and DRANGA, Ted Note on unreported marine Molluscs from Sanibel, Florida. 52, 1: 27-29. 1938 PFLUEGER, Al A new variety of Liguus. 47,4:121-122. 1934 PILSBRY, Henry Augustus (1862-) Land shells from Palm Canyon, California, and the Grand Canyon. 35. 2: 48. 1921 A Radiodiscus from Bogota. Colombia. 35, 2: 49. 1921 Observations upon the nomenclature of slugs. 35, 3: 77-80; 4: 117-118. 1922 Some Peruvian Clausiliidae. 35. 3: 93-95. 1922 Types of Ferussac's subgenera of Helix. 36. 1: 31-32. 1922 Gemma gemma purpurea (Lea) 36, 1: 32. 1922 62 THE NAUTILUS Author Index "The Mollusks collected by the University of Michigan - Walker expedition in southern Vera Cruz, Mexico." by H. Burrington Baker. 36, 1: 36. 1922 Description of a new Zonitoides. 36, 2: 38-39. 1922 "On Dinocochlea ingens n. gen. et sp.. a gigantic gastropod from the Wealden Beds near Hastings," by B. B. Woodward. 36, 2: 66. 1922 Note on Acmaea patina Esch. 36,2:71. 1922 "Notes on the Mollusks of the Colorado Desert," by S. Stillnian Berry. 36, 4: 139-140. 1923 "Variations in the shell of Teredo navalis in San Francisco Bay," by Robert Cunningham Miller. 36. 4: 140. 1923 "The effect of low salinity on Teredo navalis," by Harold Francis Blum. 36. 4: 140. 1923 "Notes on some land snails of the Sierra Nevada Mountains with description of a new species." by G. Dallas Hanna and Emmet Rixford. 36,4:140-141. 1923 "A new species of Carychium from Vancouver Island. B. C." by G. Dallas Hanna. 36. 4: 141. 1923 • Planorbis caloderma n. sp. 36, 4: 143-144. 1923 On Triodopsis harfordiana W. G. B. 37.4:133-135. 1924 The affinities of Balea africana Melville and Ponsonby. 38. 1: 6. 1924 "Land Mollusca from the Solomon Islands," by William F. Clapp. 38. 1: 36. 1924 Californian Helices. 38.2:54-55. 1924 Colorado land shells. 38,2:65. 1924 "The genus Gyrotoma," by Calvin Goodrich. 38. 2: 67. 1924 "On a Thalassoid element in the Australian Molluscan fauna," by Charles Hedley. 38, 2: 68. 1942 "Arionidae of Norway." by Fridthjof Okland. 38, 2: 72, 1924 The family Lancidae distinguished from the Ancylidae. 38, 3: 73-75. 1925 Lake Titicaca Mollusks. 38.3:103-104. 1925 Helminthoglypta umbilicata cayucosensis. 38,3:104-105. 1925 PTadiodiscus] orizabensis Pils. 39. 1: 28. 1925 New forms of Polygyra (Triodopsis) loricata. 39. 1: 31. 1925 "On some South African Gulellae. with descriptions of new species and varieties." by Henry Clifden Burnup. 39, 1: 31. 1925 Studies in Ampullaria. 39. 1: 32-33. 1925 "Miocene Mollusks from Bowden. Jamaica: Pelecypods and Scaphopods." by Wendell P. Woodring. 39.1:34. 1925 "A monograph of the Australian loricates," by Tom Iredale and A. F. Basset-Hull. 39. 1: 35-36. 1925 Brazilian Mollusks collected by Dr. Jos. Bequaert. 39. 3: 78-80. 1926 Ancilla muscae. 39.3:104. 1926 63 Author Index INDEX TO Etymology of Tornatellidae. 39.3:104. 1926 "Land and freshwater Molluscs of the Dutch Leeward Islands." by H. Burrington Baker. 39. 3: 106. 1926 "Materials for a revision of the recent Indian Lininaeidae." by N. Annandale and H. S. Rao. 39. 4: 142-143. 1926 Subulina parana Pils. 39,4:144. 1926 James H. Ferriss (Cbituary). 40, 1: 1-6. 1926 For corrections, see 40, 2: 68. 1926 Helix nucleata Yurton. 40.1:31-32. 1926 Truncatella versus Acmea. 40.1:32-33. 1926 "Paleontology of Coyote Mountain. Imperial County. California," by G. Dallas Hanna. 40. 1: 36. 1926 Euconulus fulvus again. 40, 2: 68. 1926 Opercula in shore deposits. 40, 2: 69. 1926 St r obi lops aenea. n. sp. 40, 2: 69. 1926 Types of Spartina and Distaectria Harris and Burrows, and Cy- lindrella Pfr. 40.2:69-70. 1926 Cuban land shells of the Lowe-Hand-Emery expedition. 40. 3: 73-75. 1927 The races of Helminthoglypta ayresiana. 40. 3: 78-79. 1927 A new subspecies of Planorbis. 40. 3: 79-80. 1927 A lost Achatina: A. rue if ex (Capello and Ivens) 40. 3: 102. 1927 "Naiades of the Green River drainage in Kentucl:y." by Arnold E. Ortmann. 40. 3: 104-105. 1927 Arnold Edward Ortmann (Obituary). 40. 4: 109-111. 1927 Nomenclature of Leuconia. Melampus and Truncatella. 40. 4: 125-126. 1927 North Carolina land shells. 40. 4: 136. 1927 Opeas pumilum (Pfr.) in the United States. 40.4:138. 1927 Patella stellaeformis optima n. subsp. 40,4:138-139. 1927 "Diag.io.-es of undescribed new species of Mollusks in the col- lection of the United States National Museum." by W. H. Dall. 40. 4: 140-141. 1927 "Genetic exijeriments with pond snails Lymnaea and Fhysa, " by F. D. Crabb. 40. 4: 141. 1927 "The fauna of the Ripley Formation on Coon Creek. Tennessee," by Bruce Wade. 40.4:141-142. 1927 "Zur marinen MuUusk.Mifauna Siidkaliforniens." by S. Jaekel. 40. 4: 142-143. 1927 "The Mollusca collected by the University of Michigan-Williamson expe iition in Venezuela. Part V." by H. Burrinton Baker. 40. 4: 143. 1927 "Gabb's California fossil type Gastropods." by Ralph B, Stewart. 40, 4: 143-144. 1927 William Healy Dall (Obituary). 41 . 1: 1-6. 1927 Records of Polynesian snails. 41. 1: 32. 1927 Note on the genus Ceratodiscus. 41. 2: 62-63. 1927 64 THE NAUTILUS Author Index On Pomacea Perry (Ampullarlidae) 41, 2: 63-64. 1927 A syminyni of Puly^^yra auriculata Say. 41, 2: 70. 1927 "Sacculus okai. a new ijarasitic Gastropod." by Shintaro Hirase. 41. 2: 72. 1927 Cuban land snails e-oUected by H. N. Lowe. 41. 3: 79-81. 1928 Helices from California and Texas and a Zonitid from Virginia. 41. 3: 81-83. 1928 "The fertilization process in the snail Lymnaea stagnalis ap- pressa Say." by Edward Drane Crabb. 41.3:103-101. 1028 "A monograph of Australian Loricates [Chitons]. "by Tom Iredale and A. F. Basset Hull. 41.3:104-106. 1928 Fauxulus burnupianus. new species. 41, 3: 108. 1928 The name Petrarca in Pupillidae. 41. 3: 108. 1928 Paranerita Annandale. 41,3:108. 1928 Types of Vortex and Volvulus O ken. 41.3:108. 1928 I.imax flavus L. in Alabama. 41,4:142. 1928 "Minute Mexican land snails," by H. Burrington Baker. 41. 4: 144. 1928 William D. Averell (Obituary). 42, 1: 33. 1928 Helix nemoralis L. in Ontario. 42,2:42-43. 1928 Sherwood Raymond Roberts 1845-1928 (Obituary). 42, 2: 60-61. 1928 Dr. Antoni J. Wagner (Obituary). 42, 2: 63. 1928 Area idiodon Pils. and Johns. 42, 2: 66-67. 1928 Types of L amprocystis and Pseudhelicarion. 42. 2: 67. 1928 Choanopoma caymanicola. n. sp. 42. 2: 68. 1928 Cyclotus masbatensis new species. 42. 2: 68-69. 1928 "Land snails from Hawaii. Christmas Island, and Samoa." 42, 2: 7J-71. 1928 New Cuban species of Caracolus. 42. 3: 78-80. 1929 Neverita reclusiana (Desh.) and its allies. 42. 4: 109-113. 1929 Cyphoxis Rafinesque. a Cretaceous taxodont identical with Idon- earca Conrad. 42.4:113-114. 1929 Bolten's species of Liguus. 42.4:141. 192J The type of I amprocystis. 42. 4: 141. 1929 Urocoptis alleni Torre. 42.4:141. 1929 Notes from the Pinchot South Sea expedition. 43. 2: 37-38. 1929 "The terrestrial shell-bearing IVloUusca of Alabama." by Bryant Walker. 43, 3: 105-106. 1930 ^ "Non-marine Mollusca of Oregon and Washington," by Junius Henderson. 43. 3: 108. 1930 A new Colombian helicid snail of the '>.enus Leptarionta. 43. 4: 116-117. 1930 Planorbis siliceus Brown and Pilsbry. 43.4:128. 1930 GifforJius pinchoti n. g.. n. sp. 43. 4: 142-143. 1930 "A hermaphroditic viviparous oyster of the Atlantic coast of North America." by J. S. GutselL 43. 4: 144. 1930 65 Author Index INDEX TO "Some introduced Molluscs," by F. R. Latchford. 43, 4: 144. 1930 "Three new land shells of the genus Oreohelix from Arizona," by William B. Marshall. 43. 4: 144. 1930 A new form of Liguus from Florida. 44. 1: 32. 1930 "Fossilium catalogus, pars 46. XI: Gastropoda extra-marina tertiaria." by W. Wenz. 44.1:34. 1930 New Californian snails. 44. 2: 66-67. 1930 The type of Parahelix. 44, 2: 68-69. 1930 "Catalogue des invertebres de la Suisse, fasc. 18. Gasteropodes." par G. Mermod avec la collaboration de J. Piaget. 44, 2: 72. 1930 "Zoology of Colorado," by Theodore D. A. Cockerell. 44. 2: 72. 1930 Central American Pachychilus and Polymesoda. 44, 3: 84-85. 1931 The status of Bulla. 44, 3: 98. 1931 Coretus Adans. 44,3:100. 1931 Helix haemastoma var. concolor Pils. 44. 3: 100. 1931 Polygyra columbiana megasoma (Pall). 44. 3: 101-102. 1931 "The North American Retinellae," by Ho Burrington Baker. 44, 3: 104. 1931 "Some specific criteria in Conus," by Burnett Smith. 44. 3: 104- 105. 1931 "Monograffa de las Melanopsis vivientes y fosiles de Espana," by Florentino Azpeitia Moros. 44. 3: 105. 1931 "Some studies on the biology of tulla (Corbicula manillensis Philippi). a common food clam of Laguna de Bay and its tribu- taries." by Deogracias V. Valladolid and Fidel G. del Rosario. 44, 3: 105. 1931 "Mollusca from the Henry Mountains and some neighboring points in Utah," by Ralph V. Chamberlin and Elmer Berry. 44. 3: 106. 1931 "A monograph of the dibranchiate Cephalopods of the Japanese and adjacent waters," by Madoka Sasaki. 44, 3: 107. 1931 Somnium Iredaieanum. 44, 3: 108. 1931 Some type designations in Helices and Ferussacidae. 44, 4: 138- 140. 1931 "New species of Partula." by C. Montague Cooke. Jr.. and Henry E. Crampton. 44.4: 141. 1931 "A new Mollusk of the genus Pupoides from southern Utah," by Ralph V. Chamberlain and Elmer Berry. 44. 4: 142. 1932 The type of Sulcastrum. 44. 4: 143. 1931 Polygyra edwardsi magnifumosa (Pils).45. 1: 28. 1931 The Charles Torrey Simpson Park. 45. 1: 28. 1931 Mitra loweana, n. n. 45, 1: 29. 1931 Japanese land Mollusks. 45. 1: 29-30. 1931 "The Naiades or pearly freshwater Mussels of Texas," by John K. Strecker. 45. 1: 36. 1931 66 THE NAUTILUS Author Index "Nearctic vitreine land snails," by H. Burrington Baker. 45, 1: 36. 1931 A new race of Neritina reclivata Say. 45, 2: 67-68. 1931 Cochlicopa in China. 45.2:72. 1931 Helix effusa Pfr. 45,2:72. 1931 Typhis lowei, n. sp. 45, 2: 72. 1931 Note on a Panamic corbulid clam. 45, 3: 105. 1932 The genotype of Ampullacera Q. and G. 45, 3: 105-106. 1932 Liguus solidus dryas. 45,3:106. 1932 A misidentified lower Californian snail. 45, 4: 124-125. 1932 Burnupia capensis striatissima, n. subsp. 45, 4: 136. 1932 [Polygyra polita P. and H.]. 45, 4: 136. 1932 Carinifex newberryi subrotunda, n. subsp. 45, 4: 139. 1932 Physa humerosa interioris Ferriss, 1920. 45, 4: 139. 1932 "The west American Mollusks of the genus Acar," by Paul Bartsch. 45, 4: 142. 1932 "Descriptions of new marine Mollusks from Panama, with a figure of the genotype of Engina," by Paul Bartsch. 45, 4: 143. 1932 A New Mexican Ashmunella. 46, 1: 19. 1932 fNatica eating limpet]. 46, 1: 36. 1932; 3: 103. 1933 "A new fossil Ancylus from Jehol," by Chi Ping. 46, 2: 68. 1932 Bithynia tentaculata (L.) in the Potomac, 46, 2: 69. 1932 Polygyrella polygyrella in the John Day Miocene (or Oligocene) 46, 2: 69. 1932 Libera or Garrettina (Endodontidae). 46, 2: 70-71, 1932 Nassa myristicata Hinds. 46,2:71. 1932 Note on Helicostyla and Cochlostyla. 46,2:71-72. 1932 A South African Conulinus. 46, 3: 101-102. 1933 Relationships of Polygyra platysayoides Brooks. 46, 3: 103. 1933 "Ein vorkommen des Amerikanischen Helisoma trivolvis Say im Pleistocene des flusses Kolyma (Nordost-Siberien)," by W. A. Lindholm. 46. 4: 137. 1933 "The land snail genus Carelia," by C. Montague Cooke, Jr. 46, 4: 137-138. 1933 "Mollusks of Keweenaw County, Michigan," by Calvin Goodrich. 46, 4: 138. 1933 "Observations on the life history of a finger-nail shell of the genus Sphaerium," by Thural Dale Foster. 46, 4: 138. 1933 "A Miocene Mollusk of the genus Haliotis from the Temblor Range. California," by W. P. Woodring. 46, 4: 139. 1933 "Some data on the growth, longevity, and fecundity in Lymnaea columella Say," by Joshua L. Bailey. Jr. 46, 4: 139. 1933 The case of Haminoea virescens (Sowb.). 46, 4: 140-141. 1933 Amnicolidae from Wyoming and Oregon. 47, 1: 9-12. 1933 Libera again. 47. 1: 34-35. 1933 [Alexandria Tomlinj. 47. 1: 35-36. 1933 67 Author Index INDEX TO Bruguiere's connection with the name Coretus. 47, 2: 77-78. 1933 "Studies in the variation, distribution and evolution of the genus Partula: the species inhabiting Moorea," by Henry Edward Cranipton. 47, 3: 113-115. 1934 "The non-marine Mollusks of Yucatan," by J. C. Bequaert and W. J. Clench. 47, 3: 1.15. 1934 "Transposed hinge structures in Lamellibranchs," by W. P. Popenoe and W. A. Findlay. 47, 3: 116. 1934 "A check list of Nearactic Zonitidae," by H. Burrington Baker. 47, 4: 144. 1934 "A study of Polygyra inflecta (Say)," by Allan F. Archer. 47, 4: 144. 1934 "Marine Mollusca from Acapulco, Mexico, with notes on other species," by A. M. Strong, G. D. Hanna, and L. G. Hertlein. 47, 4: 145. 1934 "Terminology of types," by Donald Leslie Frizzell. 47, 4: 145- 146. 1934 Mangelia albiyestis. 47, 4: 146. 1934 The subgenus Eudentalium. 47. 4: 146. 1934 Chersina Beck, 1837. 47,4:147. 1934 Pliocene fresh-water fossils of the Kettleman Hills and neigh- boring Californian oil fields. 48, 1: 15-17. 1934 "Notas y adiciones a la fauna malacologica Habanera," by C. G. Aguayo and M. L. Jaume. 48, 1: 34. 1934 "Notes on the fossil land shells from Bermuda in the collection of the Carnegie Museum," by Gordon M. Kutchka. 48, 1: 34. 1934 Western and southwestern Amnicolidae and a new Humboldtiana. 48, 3: 91-94. 1935 Lioplax'subcarinata occidentalis, new subspecies. 48, 4: 143-44. 1935 Chondropoma gnote . new name for C. soror Pils. 48, 4: 144. 1935 The status of Geotrochus van Hasselt. 49, 2: 67. 1935 Ashmunella metamorphosa Pilsbry. 49, 2: 67-68. 1935 "Catalogue of the shell-bearing Mollusca collected from the Kesen and Motoyosi districts, northeastern Honsyu, Japan, im- mediately after the Sanriku Tunami, March 3. 1933, with de- scriptions of five new species," by S. Nomura and K. Hatai. 49, 2: 70. 1935 "Notes on a warty growth on the head of some land snails." by Iwao Taki. 49, 2: 70. 1935 "New Mollusks from West Mexico, together with a list of shells collected at Punta Penasco. Sonora. Mexico," by Herbert N. lowe. 49, 2: 70. 1935 Land shells from Texas and New Mexico. 49, 3: 100-102. 1936 68 THE NAUTILUS Author Index Ostrea kamehameha. new name for Ostrea brvani Pils. 49, 3: 103-104. 1936 Cepolis (Plagioptycha) imperforata, new species. 49, 3: 105-106. 1936 A new Polygyra from Florida. 49, 4: 109. 1936 The eastern limit of Sonorella. 49.4:109-110. 1936 Praticolella martensiana. 49, 4: 140. 1936 Sanguinolaria bertini Pilsbry and Lowe. 49, 4: 140. 1936 "New Urocoptidae from Hispaniola," by William J. Clench. 49, 4: 142. 1936 John Henry Gatliff (Obituary). 50, 1: 28. 1936 Herbert N. Lowe (Obituary). 50, 1: 28. 1936 Melongena corona (GmeL). 50, 1: 29. 1936 "Fossil non-marine Mollusca of North America," by Junius Henderson. 50, 1: 31-32. 1936 Drymaeus multilineatus latizonatus, new subspecies. 50, 2: 69- 70. 1936 A californian Pomatiopsis. 50, 3: 84-85. 1937 Are the Conodonts Molluscan teeth? 50. 3: lOlo 1937 "Goniobasis of the Coosa River, Alabama," by Calvin Goodrich. 50. 3: 107-108. 1937 The races and allies of Pleurodonte guadeloupensis. 51 , 1: 26- 28. 1937 A correction: Drymaeus fusagasuganus. 51, 1: 33. 1937 Helminthoglypta sonoma, n. sp. 51. 1: 35. 1937 Aurinia torrei, a new Cuban volute. 51, 2: 37-38. 1937 Acrorbis petricola. 51,3:107. 1938 On the history and status of Lora Gistel. 51.4:115-118. 1938 Dimensions of Florida Chamas. 51,4:143. 1938 New species of Urocoptis and Euglandina. 52, 1: 15-16. 1938 The type of Polygyra Say. 52,1:22-24. 1938 The Cuban species of Polydontes. 52, 2: 38-41. 1938 A triad of umbilicate Latinos. Recent and Pliocene. 52. 3: 84- 86. 1939 Cyphoma mcgintyi, new species. 52, 3: 108. 1939 Pseudantalis monterosato. 52.4:139. 1939 A new Mexican Coelocentrum. 53. 1: 27. 1939 Leiostracus webberi. a new Bulimulid snail from Ecuador. 53. 1: 28-29. 1939 Polydontes obliteratus (Ferussac). 53. 2: 42-43. 1939 A new Floridan Cyclostrema. 53.2:53. 1939 A banded variety of Typhis lowei Pils. 53.2:66. 1939 Two new Mexican species of Humboldtiana. 53. 4: 140-141. 1940 "A tentative classification of the Palearctic Unionids." by Fritz Haas. 53. 4: 141. 1940 69 Author Index INDEX TO "A proposed dichotomy of the snail genus Monadenia." by S. S. Berry. 53, 4: 141-142. 1940 Megalomastoma (Farcimen) miranda, a new Cuban cyclophorid snail. 54. 1: 34. 1940 A new race of Cancellaria from Florida. 54, 2: 54. 1940 The Beal collection. 54, 2: 73. 1940 "Geographic distribution of the recent Mollusca of Newfoundland," by Stanley Truman Brooks and Betty Watt Brooks. 54, 2: 74. 1940 "The west American Haliotis," by Paul Bartsch. 54. 2: 74. 1940 "World-wide sea shells," by Maxwell Smith. 54. 2: 74. 1940 "Zonitid snails from Pacific Islands," by H. Burrington Baker. 55, 1: 35-36. 1941 "Notes on giant Fasciolarias," by Burnett Smith, 55, 2: 64. 1941 New names for subdivisions of Gongylostoma. 55, 2: 70. 1941 A new form of Urocoptis scobinata Torre and Ramsden. 55, 3: 104-105. 1942 "The genus Strombus in the western Atlantic," by Wm. J. Clench. 55, 3: 107-108. 1942 "Hermaphroditism in Anodonta grandis, a fresh-water Mussel," by Henry van der Schalie and Fred Locke. 55. 3: 108. 1942 Land Mollusca of the Cayman Islands collected by the Oxford University Biological Expedition, 1938. 56,1:1-9. 1942 "Land shells of the Bimini Islands, Bahama Islands," by Wm. J. Clench. 56, 1: 36. 1942 Description of a helicoid snail from Madagascar. 56. 2: 48-49. 1942 Helicodiscus in the West Indies. 56, 2: 55-57. 1942 Note on Cerion striatellum ("Fer." Guerin). 57, 1: 34-35. 1943 Floridian species of Rimula. 57,2:37-40. 1943 Typhis fordi. a new Bahaman muricid Mollusk. 57. 2: 40. 1943 The type of Euamnicola Crosse and Fischer, 57, 2: 68-69. 1943 "Johnsonia, No. 7". 57, 2: 72. 1943 "The poison cone shell," by Wm. J. Clench and Yoshio Kondo. 57. 2: 72. 1943 New Peruvian land Mollusks. 57, 3: 87-88. 1944 Peruvian land Mollusks - U. 57, 4: 118-127. 1944 "Hemphill's catalogue of the land and freshwater shells of Utah." 57. 4: 1 44. 1944 West American field slugs (Deroceras).58. 1: 15-16. 1944 Peruviairland Mollusca - III. 58. 1: 28-30. 1944 Helix minima True. 58,1:31. 1944 "Catalogue and revision of the Gastropod subfamily Typhinae." by Myra Keen, 58. 1: 34. 1944 "Mollusks of the Clearwater Mountains. Idaho." by AUyn G. Smith. 58. 1: 34. 1944 70 THE NAUTILUS Author Index "Pleuroceridae of the Great Basin," by Calvin Goodrich. 58, 1: 34. 1944 "Notes on freshwater Mollusks of Idaho Formation at Hammett. Idaho," by Teng-Chien Yen. 58.1:34-35. 1944 "Distribution and variation of the Hawaiian tree snail Achatin- ella apexfulva Dixon, in the Koolau Range, Oahu," by d'Alte A. Welch. 58 . 1: 35-36. 1944 "Panamic marine shells: synonymy, nomenclature, range and Illustrations," by MaxweU Smith. 58, 1: 36. 1944 Hawaiian species of Odostomia. 58, 2: 64-65. 1944 Snails from Taylor County. Texas. 58, 2: 69. 1944 Names proposed as new in Morse's Terrestrial Pulmonifera of Maine. 56, 2: 69-70. 1942 "On the generic relationships of certain Californian xerophile snails," by S Stillman Berry. 58, 2: 72. 1944 Peruvian land Mollusca - IV: Clausiliidae. 58, 3: 79-84. 1945 Stenacme floridana, an American member of the Amphibolacea. 58, 4: 112-116. 1945 Tellina panamanensis Li. 58, 4: 145. 1945 New Floridian marine Mollusks. 59, 2: 59-60. 1945 Otesia H. and A. Adams versus Vitrinula "Gray" Carpenter. 59, 2: 66-67. 1945 "The Molluscan family Planorbidae," by Frank Collins Baker. 59, 2: 70-71. 1945 "Revision of the Mollusca of Indiana," by Calvin Goodrich and Henry van der Schalie. 59, 2: 72. 1945 "Molluscan species common to western North America and Japan," by A. Myr a Keen. 59,2:72. 1945 Two misunderstood Sphaeriidae. 59, 3: 83-87. 1946 The subgeneric name Tomopeas Pilsbry. 59, 3: 105. 1946 "Supraspecific groups of the Pelecypod family Corbulidae," by Harold E. Yokes. 60, 1: 36. 1946 Sinestral Liguus fasciatus in Florida. 60, 2: 72. 1946 On the anatomy and systematic place of the land-Mollusk genus Janulus. 60, 3: 94-97. 1947 PILSBRY, Henry Augustus, and AGUAYO, Carlos Guillermo Marine and freshwater Mollusks new to the fauna of Cuba. 46, 4: 116-123. 1933 Meioceras bermudezi. 47. 3: 112. 1934 PILSBRY, Henry Augustus, and BAKER, Frank Collins Description of a new species of Somatogyrus from Wisconsin. 41, 1: 24-27. 1927 Bryant Walker. 1856-1936 (Obituary). 50, 1: 28. 1936 Bohumil Shimek (Obituary). 50, 4: 140. 1937 Error on plate 7. 60,4:148. 1947 71 Author Index INDEX TO PIL SBRY, Henry Augustus, and BEQUAERT, Joseph Charles The type of Plotia "Bolten." 37, 1: 36. 1923 PILSBRY, Henry Augustus, and COCKERELL, Theodore Dru Alison A new Japanese Euhadra. 41, 2: 64-65. 1927 A new Bolivian Helicoid, Dinotropis harringtoni, 51, 1: 24-25. 1937 Pleurodonte guadeloupensis dominicana. new subspecies. 51, 1: 34. 1937 Hodopoeus, a fossil estray. 58,4:116-117. 1945 PILSBRY, Henry Augustus, and COOKE, Charles Montague, Jr. The identity of Helix depressiformis and H. prostrata Pease. 36, 1: 17. 1922 Land shells of Vancouver Island. 36,2:37-38. 1922 Notes on the land snail family Tornatellinidae. 47. 2: 59-62. 1933 Notes on the nomenclature of Hawaiian Helicinidae. 48, 2: 53-54. 1934 PILSBRY. Henry Augustus, and FIELD, Stanley C. Description of a new desert helicid snail. 45, 1: 20-21. 1931 PILSBRY. Henry Augustus, and GRIMSHAWE, C. N. Oxystyla undata undata in Florida. 50,1:19-20. 1936 PILSBRY. Henry Augustus, and HENDERSON. Junius A new subspecies of Polygyra from Idaho. 44, 4: 121-122. 1931 Polygyra columbiana depressa. new subspecies from Oregon. Oreohelix strigosa capax. 50, 3: 101. 1937 PILSBRY. Henry Augustus, and JOHNSON. Charles Williston A drive for the Nautilus. 38. 3: 108. 1925 "The marine shells of the west coast of North America." by Ida Shepard Oldroyd. 39.3:106-107. 1926 "A descriptive catalog of the Mollusca of Utah." by Ralph V. Chamberlin and David T. Jones. 43. 4: 143. 1930 PILSBRY. Henry Augustus, and LOWE, Herbert Nelson Land shells collected by Mr. H. N. Lowe in western Mexico. 44. 3: 81-84. 1931 New west American species of Bulimulus and Nassa. 46. 2: 49- 52. 1932 West American Chamidae. Periplonui and Glycynieris. 47.3: 81-86. 1934 72 THE NAUTILUS Author Index Some desert Helices of the genus Micrarionta. 48, 2: 67-68. 1934 PILSBRY, Henry Augustus, and MCGINTY, Thomas Ladue Review of Florida Chamidae. 51, 3: 73-79. 1938 Small Cassididae of Florida and the West Indies. 52, 3: 73-77. 1939 The genus Cyphoma in Florida. 53, 1: 1-4. 1939 Fnsis minor megistus n. subsp., a West Florida razor clam. 57, 1: 33-34. 1943 Cyclostrematidae and Vitrinellidae of Florida, I. 59, 1: 1-13. 1945 "Cyclostrematidae" and Vitrinellidae of Florida, II. 59, 2: 52- 59. 1945 For Addendum, see 59, 2: 72. 1945 "Cyclostrematidae" and Vitrinellidae of Florida, Part III. 59, 3: 77-83. 1946 Vitrinellidae of Florida, Part 4. 60, 1: 12-18, 1946 Note on Vitrinella (Tomura) bicaudata. 60, 1: 36. 1946 PILSBPY, Henry Augustus, and OLSSON, Axel Adolf New MoUusks from the Panamic Province. 48, 4: 116-121; 49, 1: 16-19. 1935 New marine Mollusks from the west coast. 56, 3: 78-81. 1943 A west American Julia. 57, 3: 86-87. 1944 A Venezuelan species of Fossula. 57, 3: 89. 1944 The name Mesopteryx Pilsbry and Olsson. 59, 3: 105. 1946 Condylocardia in Florida and Middle America. 60, 1: 6-7. 1946 Another Pacific species of Episcynia. 60, 1: 11-12. 1946 PILSBRY, Henry Augustus, and VANATTA, Edward Guirey Ashmunella hebardi, a new snail from the Hacheta Grande, Mountains, New Mexico. 36,4:119-120. 1923 Correction of the name of Drillia roseobasis P. and V. 36, 4: 132. 1923 Polygyra appressa linguifera and sancta georgiensis. 38, 1: 4-6. 1924 Conus agassizi Dall. 45,3:106. 1932 Melongena corona and its races. 47,4:117-121. 1934 Three new Mexican Euglandinas. 49, 3: 97-98. 1936 PILSBRY, Henry Augustus, and ZETEK, James A Panamic Cyrenoida. 45, 2: 69. 1931 PINNEY, Mary Edith (1908-), and COKER, Robert Ervin Terrestrial and fresh water Gastropods of the Allegany State Park in New York State. 48, 2: 55-60. 1934 73 Author Index INDEX TO PROCTOR, William (1872-) Venus mercenaria at Mt. Desert, Maine. 42, 3: 102-103. 1929 QUAYLE, Daniel Branch (1913-) Note re Paphia bifurcata, a new Molluscan species from Lady- smith Harbour, B. C. 52, 4: 139-140. 1939 QUAYLE, Ernest Harrison (1892-), jt. auth. See Grant, Ulysses S., IV RAPP, Janet Lorraine Cooper (Mrs. William F. Rapp, Jr.) jt. auth. See Rapp, William Frederick, Jr. RAPP, William Frederick, Jr. (1918-), and RAPP, Janet Lorraine Cooper (Mrs. William F. Rapp, Jr.) Ecological notes on the Gastropoda of the Great Swamp (New Jersey). 58, 4: 124-125. 1945 REHDER, Harald Alfred (1907- ) A list of Mollusks from Intervale, N. H. 37, 3: 96-97. 1924 Two new Polygyras from northern Arkansas, 45, 4: 128-131. 1932 Polygyra kiowaensis. 45, 4: 141. 1932 A new Succinea from Florida. 47,1:20-21. 1933 New Caribbean marine shells. 48. 4: 127-130. 1935 The type of Polygyra Say. 49,3: 102-103. 1936 The type of Amicula Gray. 50.4:142. 1937 Congeria leucophaeata (Con.) in the Hudson River. 50, 4: 143o 1937 Rissoa bermudezi Aguayo and Rehder. 51, 1: 35-36. 1937 New marine Mollusks from the west Atlantic. 53, 1: 16-21. 1939 Micrelenchus versus Gibbium. 53, 1: 33-34. 1939 New Mollusks of the genus Naesiotus from Ecuador. 53, 4: 111- 118. 1940 Hyaloteuthis pelagicus (Bosc) in the North Pacific. 54, 2: 71-72. 1940 Note on Thericium auricoma Schwengel and stantoni Dall. 54, 2: 72-73. 1940 Myrsus H. and A. Adams 1858, the valid name for Apolymetis Salisbury 1929. 54. 4: 141-142. 1941 For Correction, see next item. Correction re Myrsus and Apolymetis. 55, 2: 64-65. 1941 A new subspecies of Naesiotus quitensis from Ecuador. 55. 3: 103. 1942 A note on the genus Anaplocamus Dall. 56. 2: 49-50. 1942 Dentalium (Antalis) pilsbryi, new name. 56. 2: 69. 1942 74 THE NAUTILUS Author Index The genotype of Neptunea. 56, 2: 69. 1942 Two new species of Drymaeus from Mexico. 57, 1: 28-29. 1943 Corrections and ecological notes on some recently described Florida marine shells, 57, 1: 32-33. 1943 A new Vitrinella from Maryland. 57, 3: 97. 1944 A new subspecies of Conus verrucosus Hwass from Florida. 57. 3: 105-106. 1944 A new pectinid shell from the Pacific Ocean, with a note on the genus Pallium Schroeter. 58, 2: 52-54. 1944 Buccinum zebra MuUer, the type of Orthalicus. 59, 1: 29-31. 1945 A note on the Bolten catalogue. 59. 2: 50-52. 1945 A note on Megaspira elata Gould. 59, 2: 67. 1945 A note on Volsella tulipa (Lamarck ). 59. 2: 67-68. 1945 Notes on some groups in the Muricidae of the west Atlantic, with description of a new subgenus. 59, 4: 142-143. 1946 RFHDER. Harald Alfred, jt. auth. See Bailey, Joshua Longstreth, Jr., Bartsch, Paul, Clench, William James REICHE.L, Eleanor, jt. auth. See Noland, Lowell Evan REMINGTON, Pardon Sheldon Jr. (1899-) Rambles of amidshipman. 35,4: 118-121; 36, 2: 49-52. 1922; 37, 1: 1-7. 1923 REMINGTON, Pardon Sheldon Jr., and CLENCH, William James Vagabonding for shells. 38. 4: 127-143. 1925 RICHARDS, Horace Gardiner (1906- ) Freshwater snails in brackish water. 42, 4: 129-130. 1929 Rare Mollusks from New Jersey. 43, 2: 63-65. 1929 Fossil Mollusks and other invertebrates from the Hudson River tunnel. New York and New Jersey. 43,4:131-132. 1930 New Varieties of Melongena and Gyrineum. 47, 2: 57. 1933 Mollusks from Chattanooga, Tennessee. 47, 4: 147. 1934 Some shells from the North Carolina "Banks." 49, 4: 130-134. 1936 Xylophaga atlantica. new species. 56, 2: 68. 1942 RICHARDS, Horace Gardiner, and ADAMS, Joseph William Viviparus malleatus in Philadelphia. Pa. 42, 4: 141-142. 1929 75 Author Index INDEX TO RICHARDS, Horace Gardiner, jt. auth. See Howell, Benjamin Franklin RICHARDS, Oscar White (1902-) The growth of the Mussel Mytilus californianus. 41, 3: 99-101. 1928 RICHARDSON, Emma Boylston William Gaillard Mazyck (Obituary). 56. 3: 99-102. 1943 ROBERTSON, Imogene Christabel Strickler (Mrs. Harold R. Robertson) (1872-) Viviparus contectoides at Buffalo. 46, 3: 106. 1933 The third annual meeting of the American Malacological Union. 47. 1: 37-44. 1933 The fifth annual meeting of the American Malacological Union. 49, 2: 62-63. 1935 The sixth annual meeting of the American Malacological Union. 50, 1: 33-36. 1936 Arion circumscriptus Johnston. 50. 3: 100. 1937 American Malacological Union: eighth annual meeting. 52. 1: 36. 1938 The eighth annual meeting of the American Malacological Union. 52, 2: 66-72. 1938 The ninth annual meeting of the American Malacological Union. 53, 2: 68-72. 1939 The eleventh annual meeting of the American Malacological Union. 55, 2: 70-72. 1941 Valvata piscinalis (Miiller) in Lake Erie. 59. 1: 36. 1945 American Malacological Union. 60, 1: 19-20. 1946 The American Malacological Union — Twelfth annual meeting. 60, 2: 66-69. 1946 American Malacological Union. 60. 4: 147-148. 1947 RODECK. Hugo George (1902-) Unusual concentration of Lymnaea. 48. 3: 106-107. 1935 Another copy of "American conchology." 51. 3: 108. 1938 ROGERS, George Floyd Wreck of the Janthina janthina. 54. 3: 75-77. 1941 ROSS, James Matthew Lymnaea contracta Currier taken alive. 58, 2:66. 1944 Sinistral Anguispira alternata. 60. 1: 35. 1946 76 THE NAUTILUS Author Index RUSSELL, Henry Drummond (1908- ) Some nudibranchs of Bermuda, with a description of a new species. 49, 2: 59-61. 1935 Coryphella pellucida Alder and Hancock. 49, 2: 65-66. 1935 Cratena veronica Verrill. 50, 4: 142. 1937 Observations on the feeding of Aeolidia papillosa L., with notes on the hatching of the veligers of Cuthona amoena A. and H. 55, 3: 80-82. 1942 A stitch in time. 58,1:32-33. 1944 Ecologic notes concerning Elysia chlorotica Gould, and Stiliger fuscata Gould. 59, 3: 95-97. 1946 RUSSELL, Henry Drummond, jt. auth. See Clench, William James RUSSELL, Loris Shano (1904- ) Early Tertiary Mollusca from Wyoming. 50,4:125-130. 1937 SANFORD, Samuel Newton Folius (1872-) Tectarius muricatus (Linnaeus) in New England. 55, 1: 33. 1941 Tethys willcoxi in New England waters. 35,3:80-82. 1922 SCHILDER, Franz Alfred (1896- ) An interesting radula (Eocypraea adamsonii Sow.) 40, 1: 17-18. 1926 Three new varieties of Cypraea. 40, 4: 126-129. 1927 SCHLESCH, Hans Margaritana margaritifera Linne in Labrador. 38, 1: 32. 1924 SCHMECK, Eugene Habecker (1879- ) Viviparus malleatus in Niagara River. 55, 3: 102-103. 1942 SCHNEIDER, Richard A., jt_. auth. See Koestner, Elmer Joseph SCHWENGEL. Jeanne Sanderson (Mrs. Frank R. Schwengel) Two new Floridan marine shells. 53, 4: 109-110. 1940 New Mollusca from Florida. 54, 2: 49-52. 1940 A genus and family of marine Mollusks new to the United States. 55, 2: 37-40. 1941 Marginella hartleyana, new species. 55, 2: 65. 1941 Living Mitra florida. 55, 4: 144. 1942 New Floridan marine Mollusks. 56, 2: 62-66. 1942 New marine shells from Florida. 56, 3: 75-78. 1943 77 Author Index INDEX TO Diadora jaumei Aguayo and Rehder. 57, 1: 32. 1943 Smaragdia viridis viridemaris Maury. 57, 3: 106. 1944 A new Floridlan Lamellaria. 58,1:17-18. 1944 SCHWENGEL, Jeanne Sanderson (Mrs. Frank R. Schwengel), and MCGINTY, Thomas Ladue Some new and interesting marine shells from northwest Florida. 56, i: 13-18. 1942 SCHWENGEL, Jeanne Sanderson (Mrs. Frank R. Schwengel), jt. auth. See McLean, Richard Alfred, and Perry, Louise M. SHIMEK, Bohumil (1861-1937) Helicina (Hendersonia) occulta Say, again. 43,4: 111-112. 1930 Pleistocene and Recent Mollusks. 44, 2: 37-41. 1930 The effect of pollution on Mollusks in Iowa. 48, 4: 109-111. 1935 The habitats of Iowa Succineas. 49, 1: 6-10. 1935 Ferrissia in the lake region of Iowa. 49, 2: 44-46. 1935 Comparative studies of loess and Recent Mollusks. 49, 3: 71-73; 4: 119-127. 1936 SHOUP, Charles Samuel (1905-) Distribution of fresh-water Gastropods in relation to total alka- linity of streams. 56, 4: 130-134. 1943 SIMPSON. Charles Torrey (1846-1932) Florida west coast Liguus. 35, 1: 20-22. 1921 A search for L.iguus. 35.3:65-73. 1922 An expedition that failed. 36,4:109-115. 1923 SMIT, Walter, jt. auth. See Jacobson, Morris Karlmann SMITH, Allyn Goodwin (1893- ) Polygyroidea harfordiana (J. G. Coop^.44, 3: 101, 1931 Monadenia hillebrandi. 48.2:70. 1934 The type locality of Qreohelix strigosa (Gould). 50, 3: 73-77. 1937 Three new subspecies of Helminthoglypta arrosa (Gould). 51, 3: 79-85. 1938 SMITH, Allyn Goodwin, CHACE. Emery Perkins, and CHACE, Elsie Margaret Helminthoglypta arrosa mailliardi Pilsbry in Oregon and Cali- fornia. 46, 1: 11-14. 1932 78 THE NAUTILUS • Author Index SMITH, Allyn Goodwin, jt^. auth. See Church, Clifford Carl, and Hanna, G. Dallas SMITH, Burnett (1877- ) William Martin Beauchamp, 1830-1925 (Obituary). 39, 4: 138-140. 1926 Busycon carica (Gmelin) as a genotype. 52, 1: 16-20. 1938 A sinistral specimen of Busycon pyrum (Dillwyn). 52, 3: 89-91. 1939 Type specimen of Busycon perversum (Murex perversus Linne). 53, 1: 23-26. 1939 SMITH, Maxwell (1888-) Non-marine Mollusks of Volusia County, Florida. 41, 2: 51-54. 1927 New Philippine Island land shells. 46, 2: 62-65. 1932 New Tertiary shells from Florida. 49, 4: 135-139; 50. 1: 20-22. 1936 Further notes upon Tertiary and Recent Mollusks from Florida together with descriptions of new species. 51, 2: 65-68. 1937: 3: 88-91. 1938 A geographic digest of "The Nautilus," volumes 1-50, a period of about fifty years. 51, 3: 107-108. 1938 Two new marine Molluscs from Japan. 54, 2: 43. 1940 New Recent and fossil Molluscs from Florida. 54, 2: 44-46. 1940 Notes upon Philippine land shells with descriptions of new forms. 45, 3: 102-104. 1932 New species of Cerion, Nenia and Drymaeus. 57, 2: 59-62. 1943 Shells dredged in Panama Bay. 58, 1: 27-28. 1944 Tellina georgiana Pall in Florida. 59.1:35-36. 1945 Two new Papuina. 59, 3: 94. 1946 A new Conus from Jamaica, with notes upon Sconsia striata. 60, 1: 1-2. 1946 New Caribbean and Panamic shells and a Pliocene Marginella. 60, 2: 60-62. 1946 SORENSEN, Andrew Collecting in Mexico. 55,4:113-115. 1942 Travelling and collecting in Mexico. 57, 1: 1-5. 1943 Our west coast marine fauna. 60. 3: 88-93. 1947 SOUTHWEST MUSEUM CONCHOLOGICAL CLUB W. H. Golisch (Obituary). 38, 1: 31. 1924 79 Author Index - INDEX TO SPECK, Frank Gouldsmith (1881- ), and DEXTER, Ralph Warren Molluscan food items of the Houma Indians. 60, 1: 34. 1946 SPENCE, George C. Note on a "double mouthed" Holospira cockerelli Dall. 41, 3: 94. 1928 SPICER, Varnum Dennis Philip (1897-) Report on a colony of Haminoea at Ballast Point, San Diego, California. 47, 2: 52-54. 1933 Shells from Midway. 55, 1: 1-2. 1941 STEIN, Samuel, jt. auth. See Clark, Howard Walton STENZEL, Henryk Bronislaw (1899- ) Mollusks from Point Isabel in Texas. 54, 1: 20-21. 1940 STEPHENS, Thomas Calderwood (1876- ) Pupoides marginatus in Iowa. 58,2:69-70. 1944 STERKI, Victor (1846-1933) Some notes on the hinge of the Sphaeridae. 35, 4: 104-117. 1922 Some notes on minute Pisidia. 36, 2: 39-41. 1922 "Pupillidae," by Henry A. Pilsbry. 36, 2: 62-66. 1922 Colorado Pisidia. 37,1:16-22. 1923 Sphaeriidae, Palearctic and Nearctic. 40,1:26-30. 1926; 42, 1: 23-27. 1928 A new species of Sphaeriuni (S. notatum) 41, 2: 55-57. 1927 Sphaerium Scopoli; Sulcastrum. new subgenus, and S. fallax, new species. 43,3:93-95. 1930 STEWART, Margaret C. Southern record for Aporrhais occidentalis mainensis Johnson. 57, 1: 29-30. 1943 Some records of marine Mollusks from Brasil. 60, 1: 18-19. 1946 STRANDINE, Eldon John (1909- ) Effect of soil moisture and Algae on the survival of a pond snail during periods of relative dryness. 54, 4: 128-130. 1941 STRONG, Archibald McClure (1876-) Notes on the genus Acteocina, Gray. 35, 2: 44-48. 1921 Notes on Acteocina. 35, 4: 122-123. 1922 Partial list of the Molluscan fauna of Catalina Island. 37, 2: 37- 43. 1923 80 THE NAUTILUS Author Index Notes on the Donax of California. 37, 3: 81-84. 1924 Notes on Lacuna from the California coast. 38, 1: 16-18. 1924 Notes on Acanthina from California. 38, 1: 18-22. 1924 Notes on the Mactras of the west coast. 38, 3: 98-102. 1925 Acanthina. 38, 3: 104. 1925 Notes on the west coast Calyptraea. 39, 1: 9-11. 1925 Notes on microscopic shells from Newport Bay, California. 42, 1: 1-4. 1928 Further notes on Epitonium fallaciosum. 45, 2: 70-71. 1931 An overlooked Area from southern California. 46, 1: 27-29. 1932 A new Californian Pseudochama. 47, 4: 137. 1934 Notes on west coast Epitoniidae. 51, 1: 4-8. 1937 A new Turbonilla from Monterey Bay, California. 51, 2: 54-55. 1937 Notes on Epitonium (Nitidoscala) tinctum (Carpenter). 55, 2: 46- 47. 1941 STRONG, Archibald McClure, and CHACE, Elsie M. Herbert Nelson Lowe (Obituary). 50, 2: 64-66. 1936 For Errata see 50, 3: 107. 1937 STRONG, Archibald McClure, jt. auth. See Hertlein, Leo George TALMADGE, Robert Raymond (1913-) A new subspecies of Monadenia from northern California. 60, 3: 93-94. 1947 TEGLAND, Nellie May Thyasira disjuncta Gabb not Thyasira bisecta Conrad the recent west coast shell. 41,4:129-131. 1928 Pitaria ida, a new recent species from Sitka. Alaska. 42, 1: 4- 6. 1928 TEST, Avery Ransome Grant (Mrs, Frederick H. Test) Description of new species of Acmaea. 58, 3: 92-96. 1945. For Erratum see next item Erratum. 58, 4: 144. 1945 THAANUM, Ditlev Due (1867- ) Foreign shells imported into the Hawaiian Islands. 40, 4: 133- 134. 1927 TOMLIN, John Read le Brocton Cytherea virginea A. Adams and Reeve. 35, 4: 134. 1922 81 Author Index INDEX TO Note on Diala leithii Smith. 35,4:134. 1922 On the identity of Saxidomus brevisiphonatus Carpenter. 37, 1: 26. 1923 Parviterebra. 37, 3: 106. 1924 Identity of Patella tenuilirata Carpenter. 38, 4: 121. 1925 Note on Donax conradi Deshayes. 40, 2: 52-53. 1926 Streptostyla chiriquiana and S. viridula. 40,4:130-131. 1927 On Engina zonata of Gray and of Reeve. 42. 2: 40. 1928 Pseudavicula Simpson preoccupied. 42. 2: 66. 1928 Helix belcheri Pfeiffer. 45,1:30. 1931 On the name Mitra lineata. 45,2:53-55. 1931 Haminoea virescent (Sowerby) 47, 1: 37. 1933 Note on Omogymna Martens. 48, 2: 70. 1934 Olive Ila mutica Say. 48.2:71. 1934 TOMLIN, John Read le Brocton, and WINSLOW, Mina Louise Conus aurora Lamarck. 41,2:43-45. 1927 TORRE, Carlos de la (1858- Some new Cuban Urocoptis. 45, 3: 88-89. 1932 • A new Cuban Polydontes. 52, 2: 37-38. 1938 Note on the type of Helix (Helicogena) gilvus Ferussac. TORRE. Carlos de la, and CLENCH, William James West Indian Mollusks, no. 1 — Two new varieties ofUrocoptis livida Torre. 44,1:15-16. 1930 West Indian Mollusks, no. 2 — New Cuban Cerions. 45, 3: 89-91. 1932 TORRE. Ricardo de la On the probable cause of certain variations in color of the shell in the genus Liguus. 52, 2: 46-48. 1938 TREVOR. W. W. Tridacna gigas. 54,3:107. 1941 VANATTA, Edward Guirey Shells in I uray Cavern. 35. 2: 64. 1921 Bermuda shells. 37.1:32-33. 1923 Land shells from Florida. 37. 2: 65-69. 1923 Land shells of Admiral's Cave. Bermuda. 38, 1: 6-7. 1924 Newfoundland shells. 38, 3: 92-93. 1925 On the type locality of Polvgyra townsendiana brunnea. 38.4: 144. 1925 Land snails of Breathitt County, Kentucky. 39,3:80. 1926 82 THE NAUTILUS Author Index Texas land and freshwater shells. 40, 1: 16-17. 1926 Land shells from around Foul Rift, Delaware River. 40, 2: 47- 48. 1926 Dates of publication of the pa<:ts of the Manual of Conchology, first series (Cephalopoda, Marine Gastropoda, Polyplacophora, Scaphopoda).40, 3: 96-99. 1927 Land and fresh-water shells from Newfoundland. 40, 4: 112-114. 1927 Arion hortensis in Philadelphia, Pa. 41, 1, 32: 1927 Mollusks in sphagnum moss. 41, 1: 34. 1927 Snails from Rock Bluff, Liberty Co., Florida. 41,4:142. 1928 Land shells of Alachua Co., northeastern Florida. 42, 1: 20-21. 1928 Shells from Live Oak Co.. Texas, collected by Dr. Julia Gardner. 42, 2: 66. 1928 Newfoundland shells. 43, 4: 133-134. 1930 Helix liberiae A. D. Brown. 44, 2: 68. 1930 Texas shells. 47, 1: 16-17. 1933 Lyogyrus vanhyningi, new species. 47, 4: 149. 1934 Lioplax pilsbryi choctawhatchensis, n. subsp. 49,2:66-67. 1935 Two new Jamaican land shells. 49, 3: 98-99. 1936 A new subspecies of Zonitoides (Ventridens) suppressa (Say). 49, 3: 99-100. 1936 VANATTA, Edward Guirey, jt. auth. See Pilsbry, Henry Augustus VAN CLEAVE, Harley Jones (1886-) Studies on snails of the genus Pleurocera. I. the eggs and egg laying habits. 46,1:29-34. 1932 Studies on snails of the genus Pleurocera. II. The young of P. acuta. 47, 2: 48-49. 1933 Thural Dale Foster (Obituary). 52, 2: 62-63. 1938 Frank Collins Baker (Obituary). 56, 3: 97-99. 1943 VAN CLEAVE, Harley Jones, and FOSTER, Thural Dale The seasonal life history of a land snail, Polygyra thyroidus (Say) 51, 2: 50-54. 1937 VAN DER SCHALIE, Henry (1907-) The station of Dysnomia triquetra (Rafinesque) 45, 3: 104-105. 1932 Lampsilis jonesi, a new Naiad from southeastern Alabama. 47, 4: 125-127. 1934 Transposed hinge teeth of North American Naiades. 49, 3: 79-84. 1936 Ovoviviparity among Mollusks. 50,1:16-19. 1936 83 Author Index INDEX TO A Mussel taken from the stomach of Rana catesbiana Shaw. 50, 3: 104-105. 1937 On the occurrence of Helix lactea Miiller in North America. 51, 4: 132-134. 1938 Remarks on some of Dr. Paul Bartsch's experiments. 51. 4: 134- 135. 1938 Aestivation of Lymnaea lanceata (Gould). 53, 4: 134-135. 1940 Aestivation of fresh-water Mussels. 53, 4: 137-138. 1940 VAN DER SCHALIE, Henry, jt. auth. See Clench, William James VAN HYNING, Thompson - A scalariform specimen of Zonitoides minusculus alachuanus Dall. 36, 3: 105. 1923 Amblema neisleri nest located. 38, 3: 105. 1925 Rumina decollata (Linnaeus). 52, 1: 33. 1938 The Van Hyning collection of Florida shells. 55, 3: 106-107. 1942 Record find of Truncatella. 56,1:34. 1942 VERRILL, Alpheus Hyatt (1871-) Strombus samba Clench in Florida. 60, 3: 102. 1947 VIOSCA, Paul Percy, Jr. (1892-) European land snails in New Orleans. 41,4: 139-140. 1928 VOKES, Harold Ernest (1908- ) Rate of migration of Crepidula convexa Say. 49, 2: 37-39. 1935 The gastropod fauna of the intertidal zone at Moss Beach, San Mateo County, California. 50, 2: 46-50. 1936 WALKER, Bryant (1856-1936) What is the type of Ancylastrum Bourguignat? 35, 1: 5-9. 1921 On the generic position of Ancylus fluviatilis Muller. 35, 2: 57- 58. 1921 Bourguignat's American species of Ancylus. 37, 1: 7-16. 1923 Amphidromus virescens (Swainson). 37. 3: 84-88. 1924 The varietal names of Polygyra profunda (Say). 38, 1: 33-34. 1924 Two new Naiades from Nicaragua. 38, 2: 51-54. 1924 New species of fresh-water Operculates. 39. 1: 5-8. 1925 The date of publication of Unio dombeyana Val. 41, 4: 131. 1928 "A classified and annotated check list of the North American Naiades," by L. S. Frierson. 41.4:143-144. 1928 Planorbis truncatus Mighels in New York. 42, 3: 104. 1929 Gyraulus vermicularis hendersoni n. v. 42, 3: 104-105. 1929 84 THE NAUTILUS Author Index WALKER, Bryant, jt_. auth. See Ortmann, Arnold Edward WASHBURN, Robert Glendenning (1879- ) A Wisconsin colony of Helix pomatia L. 54, 4: 145. 1941 WEBB, Glenn Robert (1918- ) Arion circumscriptus in Indianapolis, Indiana. 54, 2: 69. 1940 A comparison of young Helminthoglypta umbilicata and H. dupetithouarsi. 54, 4: 122-125. 1941 The Michigan Arion circumscriptus colony. 55, 2: 61. 1941 An abnormal land snail. 55, 3: 107. 1942 Mesodon appressus (Say) in Marion County, Indiana. 56, 2: 61-62. 1942 Abundance-areas of Mesodon pennsylvanicus (Green). 57. 2: 42- 45. 1943 WEBBER, Frederick Sanford (1863-) A new collecting ground. 44,1:29-30. 1930 WEISBORD, Norman Edward (1901-) Notes on marine Mollusks from the Yucatan Peninsula, Mexico. 39, 3: 81-87. 1926 WELCH, d'Alte Aldridge (1907-) Some operculate snails from northwestern Camaguey, Cuba. 42, 3: 98. 1929 New Cuban land shells from Oriente and Camaguey Provinces. 47. 3: 104-108: 4: 130-135. 1934 For Correction, see next item Correction of certain figure references to Choanopoma. 52, 4: 139. 1939 W'lELCHl. R[OBERT] J[OHNl (1859-1936) Robert Standen, M. Sc. (Obituary). 39, 1: 29. 1925 WHEELER, Harry Eugene (1907-) Notes on "American conchology." by Thomas Say, with special reference to the seventh part edited by T. A. Conrad. 51, 2: 43- 50. 1937: 3: 91-97, 1938 Additional data on copies of Say's American conchology. 51. 4: 140-141. 1938 Further notes on the location of copies of Say's American con- chology. 52. 1: 25-26. 1938 WHEELER, Harry Eugene, and ARCHER. Allan Frost Opeas gracile Hutton in Alabama. 52. 1: 29-30. 1938 85 Author Index INDEX TO WHITE, C. E., and GAY. Clementine M. W. H, Dall -- Memorial resolution of the conchological club of southern California, 41,1:31. 1927 WHITTAKER. Edward J. (1891-1924) Freshwater Mollusca from Mackenzie River basin, Canada. 38, 1: 8-12. 1924 WIEDEY, Lionel William Some previously unpublished figures of type Mollusks from Cali- fornia. 43, 1: 21-26. 1929 WILLARD, Theodora Boston Malacological Club. 41,1:27-30. 1927 The Boston Malacological Club. 42, 1: 34-35. 1928 Boston Malacological Club. 43, 1: 30-31. 1929 The Boston Malacological Club. 44, 1: 27-29. 1930 Boston Malacological Club. 45.1:25-27. 1931 Boston Malacological Club, 46. 2: 66-67. 1932 Boston Malacological Club. 47.3:108-110. 1934 Boston Malacological Club. 48.1:29-31. 1934 Boston Malacological Club. 49.1:32-34. 1935 Boston Malacological Club. 50. 2: 66-67. 1936. For Erratum, see 50, 3: 107. 1937 \V1LLETT. George (1879-1945) Notes on some Pacific coast Acteocinas. with description of one new subspecies. 42. 2: 37-38. 1928 Description of two new species of Molluscs from the west coast of North America. 43.1:26-28. 1929 The Micrariontas of the Indioensis group, with the description of a new subspecies. 43. 4: 115-116. 1930 Desert Helicoids of the Micrarionta hutsonl group. 44. 1: 4-7. 1930 Two new Helicoids from the Mohave Desert. California. 44. 4: 123-125. 1931 Three new marine Mollusks from Catalina Island. California. 45. 2: 65-67. 1931 A new Chiton from southern California. 45, 3: 101-102. 1932 A new Helminthoglypta from Monterey County. California. 45. 4: 134-135, 1932 Two new Cingulas from Alaska. 47.3:103-104. 1934 Three new Micrariontas from the central Colorado desert. Cali- fornia. 49. 1: 14-16. 1935 Some superfluous names in west American Chitons. 49, 2: 42- 44. 1935 86 THE NAUTILUS Author Index Buccinum baeri morchianum (Fischer) not a tenable name. 50, 3: 101-102. 1937 Micrariontas of the southwestern Colorado desert. 50. 4: 122- 125. 1937 A new Callistochiton from Lower California. 51, 1: 25-26. 1937 Remarks on some west American Mollusks. 52. 1: 10-11. 1938 A new Pseudochama from Clarion Island .Mexico. 52, 2: 48-49. 1938 Description of a new Mollusk from California. 52, 4: 123-124. 1939 WILSON, Fred Robert (1907-) Mollusks collected in northern West Virginia. 44, 4: 127-130. 1931 WINSLOW, Mina Louise Mollusca of Pisgah Forest. North Carolina. 35, 2: 40-44. 1921 WINSLOW, Mina Louise, jt. auth. See Tomlin, John Read le Brocton WOOD, Albert Elmer (1910- ), and WOOD. Horace Elmer 2nd A quantitative study of the marine Mollusks of Cape May County, New Jersey. 41,1:8-18. 1927 WOOD, Horace Elmer 2nd (1901-),jt. auth. See Wood, Albert Elmer WOODBURY. Angus Munn (1886- ) The snails of Zion National Park. 43. 2: 54-61. 1929 WOODRING; Wendell Phillips (1891 -) Pliocene Viviparus-like opercula from California. 39, 4: 109- 111. 1926 Fossil Viviparus-like calcareous opercula. 40. 1: 12-14. 1926 Epitonium fallaciosum. 45. 1: 31. 1931 Northern limit of Dosinia ponderosa. 59. 1: 34. 1945 WOODWARD, A. L. S.. i^. auth. See Kennard, Alfred Santer WOODWARD, Bernard Barham (1853-1930 ), jt^. auth. See Kennard, Alfred Santer WOOLSTENHULME. Jack Uinta Mountain Mollusks. 56, 2: 50-55. 1942 87 Author Index INDEX TO WRIGHT, Berlin Hart A new species of Florida Unio. 47, 1: 17-18. 1933 New Florida pearly Mussels. 47. 3: 94-95. 1934 A new Florida pearly fresh-water Mussel. 48, 1: 28-29. 1934 WURTZ, Charles Benjamin (1916-) New state and county records of land-snails in Pennsylvania. 53, 3: 84-88. 1940 Winter "colonization" of snails.' 54, 4: 142-143. 1941 Some snail records from northeastern Kentucky. 58, 4: 125-128. 1945 A snail captured by an insectivorous plant. 60, 3: 103. 1947 YEN, Teng-Chien Notes on Chinese species of Assiminea. 54, 4: 119-121. 1941 Notes on the genus Lagochilus Blanford, with special reference to its Chinese species. 55. 2: 40-43. 1941 A preliminary revision of the recent species of Chinese Vivi- paridae. 56. 4: 124-130. 1943 A Pliocene Pisidium. 59. 1: 34. 1945 YOCOM, Harry Barclay (1888-). and EDGE. Elton R. The Pelecypoda of the Coos Bay region, Oregon. 43. 2: 49-51. 1929 YOUNG. Robert Thompson (1874- ) An hermaphroditic Mytilus. 54. 3: 90-91. 1941 ZETEK. James (1886- ) A new Drymaeus from Barro Colorado Island. Panama Canal Zone. 47, 3: 93-94. 1934 ZETEK, James, and McLean. Richard Alfred Hiata, a new genus of the family Pholadidae. from the Pacific at Panama, with a description of a new species. 49. 4: 110-111. 1936 ZETEK, James, jt. auth. See Pilsbry, Henry Augustus 88 OBITUARIES IN THE NAUTILUS vols. 35-60 Aldrich, Truman Heminway (1848-1932), by C. W. Johnson, 46: 34-35. 1932 Allen, Charles Curry (1862-1934), by D. L. Emery, 48: 31-33. 1934 Annandale, Nelson (1876- 1924) Anonymous, 38: 30. 1924 Averell, William D. (1853-1928), by H. A. Pilsbry, 42: 33. 1928 Baker, Frank Collins (1867-1942), by H. J. Van Cleave, §6: 97-99. 1943 Baker, Fred (1854-1938) Anonymous. 52: 32. 1938; and by Joshua L. Bailey, Jr., 52: 64-66. 1938 Bales, Blenn R. (1876-1946) Anonymous, 60: 101. 1947 Barber, Manley D. (1852-1928), by Wm, J. Clench, 42: 101-102. 1929 Beauchamp, William Martin (1830-1925), by Burnett Smith. 39: 138-140. 1926 Bellows, Howard P. ( -1934) Anonymous, 48: 103-104. 1935 Binney, William Greene (1833-1885), by Arthur F. Gray, 45: 37- 41. 1931 Boycott, A. E. (1877-1938), by Cyril Diver, 52: 135-138. 1939 Brazier. John (1842-1930), by Tom Iredale, 44: 95-96. 1931 Brown, Walter Lincoln (1866-1942). by Effie M. Clark. 56: 102. 1943 Burnett, William Elliott (1872-1933), by Stanley T. Brooks. 47: 143-144. 1934 Burnup. Henry Clifden (1852-1928). by Ruth Meanwell, 42: 62-63. 1928 Bush, Katharine Jeanette (1856-1937) Anonymous, 50: 144. 1937 Button, Fred L. (1856-1927), by C. W. Johnson. 42: 33-34. 1928 Chamberlain. Frederick Morton ( -1921). by G. Dallas Hanna. 35: 60. 1921 Cooke, Jeannette M. (1843-1920). by Fred Baker. 36: 30-31. 1922 Dall, William Healey (1845-1927), by H. A. Pilsbry. 41: 1-6. 1927; and by C. E. White and Clementine M. Gay. 41: 31. 1927 Emerson. Joseph Swift (1843-1930). by C. Montague Cooke. Jr.. 44: 94-95. 1931 Emerton. James Henry (1847-1930). by C. W. Johnson. 44: 97-98. 1931 89 Obituaries INDEX TO Eno. Frank Harvey ( -1943) Anonymous, 57: 141. 1944 Eshnaur, Warren H. (1860-1935), by C. M. Gay, 49: 63-64. 1935 Eshnaur, Mrs. W. H. (1862-1943), by E. M. Chace, 57: 35-36. 1943 Faustino, Leopoldo A. (1892-1935), by W. J. Clench, 49: 139. 1936 Ferriss, James H. (1849-1926), by H. A. Pilsbry, 40: 1-6. 1926 Foster, Thural Dale (1897-1936), by H. J. Van Cleave, 52: 62-63. 1938 Fulton, Hugh C. (1861-1942) Anonyous, 56: 68. 1942 Gatliff, John Henry (1848-1935), by H. A. Pilsbry, 50: 28. 1936 Godwin-Austen, Henry Haversham (1834-1923) Anonymous, 38: 30- 31. 1924 Golisch, W. H. (1870-1924), by Southwest Museum Conchological Club, 38: 31. 1924 Hargraves, W. H. (1839-1925), by Tom Iredale, 39: 68-69. 1925 Hedley, Charles (1862-1926) Anonymous, 40: 94-96. 1927 Henderson. Junius (1865-1937), by T. D. A. Cockerell, 51: 97-99. 1938 Higgins. Henry C. (1865-1939) Anonymous, 54: 106. 1941 Hirase, Yoichira (1859-1925) Anonymous, 39: 67-68. 1925 Humphrey, Edward Goss (1855-1934), by J. Henry Blake, 48: 103. 1935 Johnson, Charles Williston (1863-1932) Anonymous, 46: 36. 1932; and by Arthur F. Gray, 46: 129-134. 1933 Jordan, Eric Knight (1903-1936) Anonymous, 40: 33-34. 1926 Latchford, Francis Robert, by A. La Rocque and J. Oughton, 53: 99-103. 1940 Law, Annie E. ( -1889) Anonymous, 40: 132-133. 1927 Lermond, Norman W. (1861-1944) Anonymous, 58: 102-105. 1945 Lindholm, Wilhelm A. (1874-1935) Anonymous, 50: 69. 1936 Lowe, Herbert Nelson (1880-1936), by H. A. Pilsbry, 50: 28. 1936; and by A. M. Strong and Elsie M. Chace, 50: 64-66. 1936 Mansfield, Wendell Clay (1874-1939), by Julia Gardner, 53: 64-65. 1939 May, W. Lewis (1861-1925), by Tom Iredale, 39: 140-141. 1926 Maynard, Charles Johnson (1845-1929), by C. W. Johnson, 43: 101- 103. 1930 Mazyck, William Gaillard (1846-1942), by Emma B. Richardson, 56: 99-102. 1943 Mighels, Jesse Wedgwood (1795-1861). by C. W. Johnson, 41: 65- 69. 1927 Morse, Edward Sylvester (1838-1925), by C. W. Johnson, 39: 135- 137. 1926 Murdoch, R. ( -1923), by Tom Iredale. 39: 69-70. 1925 Nylander, Olof O. (1864-1943) Anonymous, 57: 66. 1943 Oldroyd, Ida Mary Shepard (1856-1940) Anonymous, 55: 140-141. 1942 90 THF NAUTILUS Obituaries Oldroyd, Tom Shaw (1853-1932) Anonymous, 46: 108. 1933 Ortmann, Arnold Edward (1863-1927). by H. A. Pilsbry. 40: 109- 111. 1927 Ritchie, John, Jr. (1851-1939) Anonymous, 53: 66. 1939 Rixford, Emmet (1865-1938) Anonymous, 51: 141. 1938 Roberts, Sherwood Raymond (1845-1928), by H. A. Pilsbry, 42: 60- 61. 1928 Sars, GeorgOssian (1837-1927) Anonymous, 41:31-32. 1927 Sherborn, Charles Davies (1861-1942) Anonymous, 56: 67. 1942 Shimek, Bohumil (1861-1937), by H. A. Pilbsry and H. B. Baker, 50: 140. 1937 Standen, Robert (1854-1925), by Robert John Welch, 39: 29. 1925 Sterki, Victor (1846-1933), by Stanley T. Brooks, 46: 134-136. 1933 Strecker, John K. (1875-1933), by L. S. Frlerson, 46: 136-137. 1933 Swift, Robert (1809-1885), by Thomas Bland and Wm. J. Clench, 51: 142-143. 1938 Tremper, Robert Haines (1853-1933), by Howard R. Hill, 47: 110-111. 1934 Vanatta, E. G. (1862- 1939) Anonymous, 52: 139. 1939 Verrill, Addison Emery (1839-1927), by C. W. Johnson, 40: 111- 112. 1927 Wagner, Antoni J. (1860-1928), by H. A. Pilsbry, 42: 63. 1928 Walker, Bryant (1856-1936), by H. A, Pilsbry and F» C. Baker, 50: 28. 1936; and by Calvin Goodrich, 50: 59-64. 1936 Weller, Stuart (1870-1927), by C. W. Johnson, 41: 137-138. 1928 Wheat, Silas C. (1852-1922). by C. W. Johnson, 36: 103-104. 1923 Willett, George (1879-1945), by Elsie M. Chace, 59: 101-104. 1946 Woodward, Bernard Barham (1853-1930) Anonymous, 44: 97. 1931 91 Index to Genera and Species abaconis, Tivela 49: 119; 53:118 abancayensis, Bostryx 57: 123 abbevillensis, Goniobasis 42: 29 abbreviata, Cassidea 37: 124 abbrevlata, Cassis 52: 73-4 — see also C. sulcosa a. abbreviata, Coralliophila 53: 39 abbreviata, Gastrocopta — see G. armi- fera a. abbreviata, Goniobasis 41: 60 abbreviata, Melania 41: 60 abbreviata, Semicassis -- see S. gibba a. abbreviata, Urocoptis — see U. brevis a. abbreviatus. Cassis 52: 44 abbreviatus, Conus 35: 84; 36: 121; 55: 2 abbreviatus, Lamellaxis, see L. niexicanus a. abditum, Pisidium 35: 113; 37: 22, 30; 40: 28; 41: 34, 120; 42: 123; 43: 119; 44: 91; 53: 78; 54: 30, 84, 86; 56: 53; 58: 51; 59: 25, 29 aberrans, Lymnaea 52: 58 -- see also L. ovata a. Abida 36: 63-4 abietum, Radiodiscus (Radiodomus) 43: 96, 100-1, 124, 126-7, pi. 6; 45: 84, 86 abjecta, Geomitra (Caseolus) 35: 13 aborlanensis, Amphidromus -- see A. versicolor a. abortivum, Pisidium 37: 22; 59: 34 abreojosensis, Mangelia 55: 122 Abra aequalis 43: 132; 54: 21; 58: 59 Abralia veranyi 40: 140 Abretia 37: 63 Abretiella 37: 61, 63 abreviatus. Cassis 45: 79 abruptum, Pisidium 59: 86 abruptus, Donax 37: 82 abruptus, Unio 37: 135-37; 51: 48 abyssicola, Lymnaea 57: 8 abyssorum, Xylophaga 56: 68 Acanthina 37: 39; 38: 18, 104; 43: 11; 44: 66 angelica 47: 47 aurantia, see spirata a. brevidentata 37: 124; 46: 44-5 lugubris 38: 22 muricata 37: 121, 124; 52: 44 paucilirata 38: 21 punctulata, see spirata p. spirata 38: 19, 21, 104 (Acanthinucella) spirata 50: 47 spirata aurantia 38: 21 spirata punctulata 38: 21 (Acanthinucella) spirata unicarinata 38: 104 unicarinata, see spirata u. Acanthinucella 38: 104 --also as subgenus of Acanthina. Acanthinula 36: 63; 40: 64; 41: 123 aculeata 40: 31 albida, see lamellata a. harpa 36: 67; 39: 124; 42: 135 lamellata albida 36: 67 Acanthochites 39: 75 matthewsi 41: 105 viridis 35: 83-4 Acanthochiton 41: 105 achates 58: 102 arragonites 58: 102 asbestoides 58: 102 boeticus58: 102 cuspidatus 58: 102 hirtus, see hispidus h. hispidus 58: 102 hispidus hirtus 58: 102 Acanthochitona avicuia 37: 43 balesae 53, pi. 2 exquisita"46: 112 pygmaea 50: 141 acanthodes, Pecten (Aequipecten) 38: 120 Acanthodoris 39: 49, 50 albescens, see pilosa a. brunnea 39: 50, 53, 60, 101, pi. 2 coerulescens 39: 50 columbina 39: 50, 60, 94, 100- -102, pi. 2, 3 globosa 39: 60 hudsoni 39: 50-52, 54, 60, 101. pi. 2 lutea 39: 50, 60, 63, 101-? pi. 2, 3 metulifera 39: 60 mollicella 39: 49, 60 nanaimoensis 39: 50, 100 Novae -Zealandiae, see pilosa N. pallida, see pilosa p. pilosa 39: 49, 61 pilosa albescens 39: 49 pilosa Novae Zealandiae 39: 60 pilosa pallida 39: 60 pilosa purpurea 39: 50 purpurea, see pilosa p. rhodoceras 39: 50. 55. 60, 101-2. pi. 2, 3 subquadrata 39: 49 Acanthopleura granulata 35: 120-1 93 Acanthopupa INDEX TO Acanthopupa 40 : 72 Acar 45: 127, 142; 46: 27, 29 bailyi 45: 127-8, 142; 46: 28 gradata 45: 142 panamensis 45: 127-8, 142 acaria, Marginella 36: 122 Acella 46: 107 haldemani 42: 97; 44: 107; 46: 107 haldemanni 42: 136 acerra, Ventridens 46: 58-9, 91 acerra, Zonites (Gastrodonta) 40: 132 acerra, Zonitoides 43: 140 achates, Acanthochiton 58: 102 Achatina 44: 104; 48: 34; 59: 117 balteata 48: 34 bandeirana 40: 102 berevoensis, see panthera b. chapini, see rugosa c. crawfordi 50: 18 fulica 40: 33 gracilior 53: 107 immaculata 44: 104 knorrii 52: 27 madaziniana 44: 104 marginata 52: 26 modestior 52: 27 murrea 45: 106 panthera 43: 86 panthera berevoensis 43: 85 picta 60: 43 procera 48: 85 rucifex 40: 102 rugosa chapini 48: 34 solida 60: 45 streptostyla 41 : 21 achatina. Bulla 59: 117 achatina, Helix 37: 45 Achatinella 36: 52; 38: 78; 41: 68; 42: 71; 43: 130; 50: 140; 58: 35 alba, see lorata a. apexfulva 58: 35-6 bellula 38: 79 bellula straminea 38: 79 bulimoides obliqua 43: 130-1 decipiens kaliuwaensis 43: 131 kaliuawaensis, see decipiens k. lorata 38: 78 lorata alba 38: 78 mustelina 58: 36 obliqua, see bulimoides o. olivacea, see vulpina o. pallida 38: 78 producta, see stewartii p. stewartii 38: 79 stewartii producta 38: 78-9 straminea, see bellula s. swiftii 43 130 viridans 42: 71 vulpina olivacea 38: 78 achatinoides, Strobilus 47: 61 achatinoides, Tornatelloides 47: 61 achatinus, Mytilus 60: 19 Achoanomphalus 41: 41 acicula, Buccinum 44: 140 acicula, Cecilioides 44: 140 acicula, Creseis 47: 54-5 acicula, Melanella 36: 122 acicula, Turritellopsis 35: 32; 39: 133 acicularis, Simnia 58: 38 aciculata 52: 118 aciculata 37: 63 Acila 44: 50-1; 45: 127 castrensis 44: 50, 52, pi. 4; 55: 49 acinatus, Callistochiton 51: 26 Aclastus 39: 45 rufipes 39: 45 Aclis 41: 104; 56: 17 bermudensis 56: 17 hypergonia 56: 17, pi. 3 Aclisina 45: 35 Acmaea 36: 61; 38: 57; 40: 77, 126; 41: 109, 113; 45: 21-2; 46: 36, 115; 53: 36, 38; 58: 92-3, 120, 144; 60: 89 (Collisella) aeruginosa 46: 45; 52: 44 aleutica 40: 101 alveus 41: 112-6 (see also testudinalis a.) amoena, see testudinalis a. apicina 40: 101 asmi 36: 18; 50: 49 cancellata 58: 94 candeana 35: 121 cassis 47: 102 cassis pelta 38: 27; 47: 102 cona 58: 92, 144 concinna 49: 2 conus 58: 144 cornea 58: 94 cribraria 50: 49 (see also patina c. and scutum c.) dalliana 46: 112-3 depicta 36: 34 digitalis 47: 102; 50: 48 digitalis umbonata 51: 124 discors 52: 44 eccentrica 58: 95 fascicularis 52: 44 fenestrata, see patina f. fergusoni 36: 104; 41: 111 filosa 52: 44 fouae 58: 93 funiculata 45: 21-5 pi. 2 (see also mitra f.) heroldi 49: 2 heroldi pygmaea 49: 2 incessa 50: 49; 53: 22 insessa 36: 34; 44: 93 instabilis 44: 93; 50: 49 irregularis 58: 95 leucopleura 38: 60 limatula 37: 43; 50: 49; 51: 124; 56: 43 mesoleuca 47: 47 mitella 52: 44 mitra 38: 27; 45: 22-5. pi. 2; 50: 48; 53: 22 94 THE NAUTILUS Acutacarinata mitra funiculata 45: 24-5 mitra tenuisculpta 45: 24 ochracea 50: 48, 50; 56: 42 paleacea 36: 18, 34; 37: 43; 50: 49 patina 36: 71; 47: 53 (see also scutum p.) patina cribraria 36: 71 patina fenestrata 36: 71 pediculus 52: 44 pelta 50: 48; 53: 22 (see also cassis p.) peramabilis 38: 27; 51: 124 persona 50: 49 pintadina, see scutum p. pulcherrima 40: 140 punctulata 38: 60 pygmaea, see heroldi p. rosacea 36: J 8 rubella 39: 131 scabra 37: 43; 47: 53; 50: 49; 53: 22; 58: 93 scutum 36: 71; 37: 4; 38: 27; 47: 102; 50: 48 scutum cribraria 51: 124 scutum patina 47: 102 scutum pintadina 47: 102 tenuisculpta 45: 23 (see also mitra t.) testudinalis 35: 86; 39: 131; 41: 109-15; 42: 38, 39. 103; 54: 5; 56: 58, 106; 58: 137-8, 141 testudinalis alveus 42: 103 testudinalis amoena 35: 86; 41: 109 transparens 58: 96 triangularis 56: 42 umbonata. see digitalis u. Acme 40: 32, 33 Acmea 40: 32-3 lineata 40: 32 Acmella scalaris 40: 134 acmensis, Fasciolaria -- see papillosa a. acobambensis, Nenia 58: 80-2. pi. 3 Acostea 55: 94 Acquipecten -- subgenus of Chlamys acquisulcatus, Pecten 36: 34 acrior, Terebra, see T. limatula a. Acrolo>cus 35: 5, 58; 38: 84; 39: 114 Acroluxus 38: 84 acromelas, Bostryx 57: 124 acropora, Turritella, see T. subangulata a. Acrorbis 51: 107; 59: 71 petricola 51: 107 Acrostylus 48: 126 — also as subgenus of Placostylus Acrotrema — subgenus of Cyclostrema Actaeon punctostriatus 37: 54 Acteocina 35: 44, 48, 96, 122; 36: 34; 39: 25; 42: 2, 37; 59: 103-4 bullata 46: 116 canaliculata 35: 96; 56: 143; 58: 62 carinata 35: 45-6, 122; 55: 121 cerealis 35: 45-7, 96. 122; 42: 37 culcitella 35: 45-7, 96, 122; 37: 41; 38: 25; 42: 37-8; 44: 93 culcitella intermedia 42: 38 eximia 35: 45-6, 122; 38: 25; 42: 37-8 inculta 35: 45-7, 122; 42: 2; 57: 71 infrequens 35: 45-6, 96, 123; 42: 4 intermedia, see culcitella i. magdalenensis 42: 3 oldroydi 39: 25 planata 35: 45-6^ 123 smirna 35: 45-6, 123; 55: 121 Acteon 38: 51 candens 53: 21, pi. 6. chipolanus 53: 21 punctostriatus 53: 21; 56: 143 Acteonia corrugata 36: 135 Acteonina 46: 68 Actinonaias 36: 36 carinata 36: 100; 40: 66; 44: 90, 130; 49: 80 discus 36: 36 (disconaias) walkeri 36: 36 actinophora descendens. Geomitra 35: 14 actoni, Pseudomalaxis 48: 129 aculeata, Acanthinula 40: 31 aculeata, Anomia 35: 31; 39: 39; 40: 23; 50: 102; 56: 59; 58: 138, 141 aculeata, Crepidula 36: 11; 38: 95; 39: 86; 52: 45, 118; 58: 61 aculeata. Helix 40: 31 aculeatus, Cardium 37: 45 aculeosum, Choanopoma, see C. hillianum a. aculeus, Melanoides 49: 75. 77-9 aculeus, Onoba 39: 133 aculeus, Rissoa 56: 59; 58: 137, 139 acuminata, Limnaea 39: 143 acuminata, Margarita 35: 49 acuminata, Mitra 60: 56 acuminata. Ricinula 56: 77 acuminatum, Sphaerium 40: 50. 62; 57: 95 acuminatum diaphanum. Sphaerium 57: 95 acuminatum lacuum, Sphaerium 57: 95 Acuminea 37: 61, 63 Acus 37: 63 acus, Spiraxis 53: 14 acus enigmaticus. Spiraxis (Mirapex) 53: 11-4, 93, pi. 4. acus minor, Spiraxis 53: 51 acuta, Alectrion 35: 99 acuta, Cochlicella 35: 39 acuta, Diala 50: 48. 50 acuta. Helix 59: 118 acuta, Eulima 46: 117 acuta, Melanella 46: 117 acuta, Melania 51: 93 acuta, Mopalia 58: 102 acuta, Nassa 51: 93 acuta, Nuculana 54: 20; 58: 56 acuta, Physa 38: 61; 48: 33 acuta, Pleurocera 38: 44-5; 41: 61-2; 44: 46. 89; 45: 62-3; 46: 30-1. 33, 34; 47: 48-9; 48: 27; 53: 106; 54: 9; 56: 131 acuta, Pleurodonte, see P. fuscolabris a. and P. lucerna a. acuta semperfluens, Pleurodonte 49: 4 acutacarinata 50: 84; 52: 126; 56: 133 95 Acutangula INDEX TO acutangula, Corbula 40: 42 acutangula, Helix 36: 32 acutecarinata, Bellamya, see B. quadrata a. acuticostata, Liotia 37: 43 acuticostata bristolae, Liotia 43: 72 acuticostata radiata, Liotia 43: 72 acuticostata, Varicella 40: 91; 49: 21; 55: 25 acuticostata horrida, Varicella (Melaniella) 55: 26, pi. 1. acutifilosa, Goniobasis 48: 96, 134 acutifilosa pittensis, Goniobasis 48: 134 acutifilosa siskiyouensis 48: 96, 134 acutior, Ischnochiton, see I. cooperi a. acutissima, Helix 44: 138 acutissimus, Medionidus 37: 58, 60, 99, 100 acutus, Placostylus (Acrostylus) 48: 126, pi. 7 adamas, Anomia 37: 128; 57: 5 adamsi. Area 49: 116; 60: 19 adamsi, Area (Barbatia) 39: 82 adamsi, Chondropoma 48: 66 adamsi, Lymnaea, see L. catascopium a. adamsi, Pisidium 40: 50; 42: 97 adamsi, Pyramidella (Longchaeus) 37: 42 adamsi, Stoastomops 48: 10, pi. 3 adamsiana, Helicina 41: 23 adamsiana, Lucidella (Poenia) 48: 9, 10, 13 adamsiana sublaevis, Lucidella (Poenia) 48:. 9, 10, 13, pi. 2 adamsiana, Sagda 48: 138; 49: 53 adamsiana, Varicella (Costavarix) 49: 25; 55: 26 adamsianus, Mytilus 52: 45; 56: 31, 43 Adamsiella 48: 63 errans, see variabilis e. granosa, see variabilis g. grayana 48: 64 (Adamsiellops) ignilabre 48: 63 intermedia, see monstrosa i. irrorata 48: 64 jarvisi 48: 64 mirabilis 48: 64 miranda 48: 64 monstrosa 48: 64 monstrosa intermedia 48: 64 pearmanaeana 48: 64 variabilis 48: 64 variabilis errans 48: 64 variabilis granosa 48: 64 Adamsiellops -- subgenus of Adamsiella adamsii, Sella 56: 141; 58: 61 adamsoni, Lamellidea 47: 62 adamsonii, Eocypraea 40: 17, 18 adansoni, Phacoides 49: 117 adansonii, Cerithium 54: 72 adansonii, Lucina (Here) 52: 88, 89 adela mionecton, Vallonia 50: 9 adelae, Cancellaria, see reticulata a, adelinae, Archachatina 52: 27 adelinae candefacta, Archachatina 52: 27 adelinus, Ancylus 37: 15; 16 adelinus, Hebetancylus 37: 16: 46: 116-7 adelus, Phos 56: 66, pi. 3 Adeorbis 60: 8 lirata, see supranitidus 1. supranitidus 58: 61 supranitidus lirata 56: 144 Admete 51: 116-7 californica 51: 101 couthouyi 38: 25; 40: 21; 51: 116 couthouyi gracilior 51: 101 crispa 51: 116 gracilior, see couthouyi g. viridula 51: 116 admiralis, Conus 37: 45-6 Adrana 48: 117 — also as subgenus of Leda, Nucula, and Nuculana notabilis 53: 16, pi. 6 scaphoides 53: 17, pi. 6 adriatica, Amphiperas 40: 17 adrastia, Carinoturris 58: 108 adriatica, Pseudosimnia 54: 46 adscensionis, Pecten 45: 107 adspersa, Helicina 38: 60; 40: 89 adspersa onusta, Helicina 40: 89 adspersa, Oliva, see O. carneola a. Adula californiensis 56: 42 falcata 56: 42 adunca, Crepidula 44: 93; 50: 48; 52: 45 adustum, Cerithium 37: 125; 46: 45 adustum nebulosum, Cerithium 52: 43-4 adustus, Murex 60: 55 adversarium, Busycon 53: 26 aenea, Strobilops 40: 69; 42: 21; 46: 58; 48: 106; 55: 10; see also S. strebeli a. Aeolidia 36: 91, 135 coronata 36: 91 papillosa 55: 80-1 Aeolis 56: 58 (Flabellina?) opalescens 35: 75 aepynota, Odostomia (Miralda) 37: 42 aequae, Simnia 57: 5 aequale, Amphidesma 51: 49 aequalis, Abra 43: 132; 54: 21; 58: 59 aequalis, Goniobasis 41: 60 aequalis, Melania 41: 60 aequalis, Turbonilla 56: 144 aequata, Aligena 55: 48 aequata, Amphidesma 55: 48 aequatorialis, Area (Scapharca) 37: 127 aequilaterale, Pisidium 35: 112, 115; 37: 30 Aequipecten -- subgenus of Pecten aequisculpta, Alvania 37: 43; 53: 31 aequisculpta, Rimula 40: 140; 57: 38-9 aequistriata, Tellina 58: 59 aequisulcatus, Pecten, see P. circularis a. Aerotrochus 48: 135; 50: 70-1; 54: 60 -- also as subgenus of Hyalosagda aeruginosa, Acmaea (Collisella)4b: 45; 52: 44 aeruginosa, Bellamya 56: 126 aeruginosa. Helix 50: 99 aesopus, Pleurobema 36: 49 Aetheria 55: 94 96 THE NAUTILUS Alasmodonta affectatum, Ptychotrema 49: 96 affine, Chondropoma 40: 89 affinis, Alcadia 48: 12 affinis, Anculosa 46: 40 affinis, Bursa 55: 2; 60: 55 affinis, Cardita 48: 4; 58: 118 affinis, Pitar 52: 46 affinis, Strobilops 35: 91; 39: 124; 42: 14; 43: 43-4, 68, 80 africana, Ampullarina 58: 113 africana, Austrobalea 38: 6 africana, Balea 38: 6 africana, Corbicula 47: 77 africana, Isidora 40: 106 africana, Physopsis 52: 142; 60: 35 africana, Rhinomelania 43: 107 agari, Facelina 49: 61 Agaronia 42: 13 hiatula 60: 81 testacea 45: 74-6; 48: 4; 57: 5 agassizi, Conus 45: 106 agassiziana adamsiana, Fadyenia (Lewisia) 48: 14 agassizii, Cerion 38: 58, 60 agile, Dentalium 39: 131 agilis, Tellina 45: 111 Agina 40: 43 Aglaia fidelis minor 36: 14 Aglaja bakeri 38: 143 agna, Gastrocopta, see G. holzingeri a. agnesiana, Brachypodella 41: 94 agreste, Deroceras 48: 57-8; 50: 132, 134; 51: 6.3, 140; 52: 96-7; 54: 29; 55: 68; 56: 54; 57: 110-2; 59: 68; 60: 34 agrestina, Cerion 38: 58, 60 agrestis, Agriolimax 35: 97; 39: 103; 40: 113; 41: 43; 42: 124; 43: 68; 44: 88, 114, 129; 47: 2, 9; 48: 78; 50: 121; 51: 58 agrestis reticulata, Agriolimax 48: 78 agrestis, Deroceras 50: 133; 60: 3 agrestis, Limacella 35: 78, 80 agrestis, Limax 35: 78-80; 50: 133; 58: 16 Agriodesma 56: 33; 57: 49 -- also as subgenus of Callocardia and Entodesma Agriolimax 35: 77-80; 37: 28; 40: 64, 133; 60: 104 agrestis 35: 97; 39: 103; 40: 113; 41: 43; 42: 124; 43: 68;44: 88, 114, 129; 47: 2, 9; 48; 78; 50: 121; 51: 58* agrestis reticulata 48: 78 berendti 37: 28 campestris 37: 66, 79; 40: 77, 113; 42: 21; 42: 124; 43: 42-4, 55, 59, 119; 44: 88, 129; 45: 34; 47: 139; 54: 31; 55: 68 (see also A. (Deroceras) laevis campestris) campestris montana 37: 79 guatemalensis 37: 28 laevis 37: 28 (Deroceras) laevis 51: 58 (Deroceras) laevis campestris 50: 121 melanocepiialus 35: 79 pallidus 37: 28 reticulatus 58: 16 (see also A. agrestis r.) stenurus 37: 28 Agriopoma 56: 33 -- also as subgenus of Callocardia aguayoi, Cerion 45: 89, 91, 98 aguayoi bequaerti, Cerion 45: 91, 98 aguayoi, Cerithidea 56: 22, 25-6 aguilerianum, Opisthosiphon 45: 92-4 aguilerianum holguinense, Opisthosiphon. 45: 93, 97 aguinaldoi, Helicostyla, see H. lignaria a. Alaba 35: 84-5 supralirata 35: 85 alabama, Anguispira, see A. cumber- landiana a. alabamensis, Amphigyra 58: 15 alabamensis, Goniobasis 58: 45 alabamensis, Gyrotoma 58: 47 alabamensis, Margaritana 36: 131 alabamensis, Menetus 58: 12 alabamensis, Polygyra 48: 52 -- see also P. vannostrandi a. alabamensis, Strophitus 36: 130 alabamensis, Triodopsis, see T. vanno- strandi a. alabamiensis, Corbula 40: 46 Alabastrina -- subgenus of Helix Alabina 36: 27; 37: 33-4 diomedae 36: 28; 55: 121 effiae 59: 104 alachuana, Zonitoides, see Z. minuscula a. Alaeocyma thaanumi 36: 121 alameda, Haplotrema 44: 67. pi. 5; 54: 131-2 alameda fieldi, Haplotrema 44: 67, pi. 5 alaskana, Alvania 51: 122 alaskana. Mactra 38: 99 alaskana, Spisula (Polynyma) 38: 25 -- see also S. polynyma a. alaskana, Succinea, see S. rusticana a. alaskana, Vitrea 43: 61 alaskana, Vitrina 35: 36; 37: 79; 38: 125; 41: 20; 42: 124; 43: 55, 58; 44: 114; 46: 128; 47: 2; 48: 47; 53: 63, 131-3; 54: 29, 31. 96, 117; 55: 143-4; 56: 53 alaskense, Propeamusium 38:24 ulaskensis, Astarte 38: 24 alaskensis, Euconulus 35: 36 -- see also E. fulvus a. Alasmidonta calceola 36: 94; 41: 92 calceolus 40: 105 georgiana 36: 83. 130 heterodon 54: 52 holstonia 36: 83 marginata 36: 98; 37: 29; 40: 66; 59: 110 minor 40: 105 truncata 41: 92 undulata 37: 29; 41: 108; 44: 69; 54: 53 Alasminota -- subgenus of Lasmigona Alasmodonta 51: 9i3 confragosa 51: 49. 50 97 Alata INDEX TO Alata 43: 72 alata, Lampsilis 36: 99; 44: 90 alata, Mactra 48: 105; 60: 19 alata subalata, Mactra 48: 105 alata. Pedalion 49: 117 alata, Proptera 36: 99; 38: 136; 39: 92; 40: 9, 66-7; 44: 47, 90; 46: 68; 47: 147; 49: 80 alata megaptera, Proptera 59: 110 alata, Schasicheila 42: 36 alatus, Strombus 56: 36 — see also S. pugilis a. alauda; Cepolis 56: 82 alba, Ariophanta, see A. laevipes a. alba, Brachypodella 49: 58 alba eos, Brachypodella 49: 58 alba minima, Brachypodella 49: 58 alba striata, Brachypodella 49: 58 alba striatula, Brachypodella 49: 58 alba, Cylichna 35: 32, 96; 51: 9 alba corticata, Cylichna 40: 22 alba, Cylichnella 38: 27; 40: 22 alba, Cypraea 40: 130 alba hesitata, Cypraea 40: 130 alba, Fissurella 52: 45 alba, Hygromia, see H. striolata a. alba, Oliva, see O. emicator a. alba, Polygyra, see P. multilineata a. and P. profunda a. albanyensis 42: 30 albaria, Cytherea 51: 93 albata, Oxystyla, see O. ponderosa a. albescens, Megaustenia, see M. siamense a. albescens, Nassa 60: 56 albescense, Sphaerium 57: 95 albicans, Ostrea 58: 54 albida, Anoma, see A. splendens a. albida, Helix, see H. hortensis a. albida decolorata. Helix 35: 100 albida, Venus 37: 45 albidus, Drymaeus, see D. dormant a. albidus, Ischnochiton 58: 101 albifasciata. Bursa 52: 44 albilabris, CarocoUa 44: 138 albilabris, Discodoma 44: 138 Albimanus 48: 118 -- also as subgenus of Periploma albina, Helix, see H. multilineata a. albina, Oliva, see O. tremulina a. albinodata, Drillia 39: 85 albinodatuni, Choanoponia, see C. fimbri- atuluri a. Albinula 60: 21 albivestis. Mangelia, 47: 146 alboanfractus, Anoma 49: 21 albocarinata, Helix (Papuina) 49: 91 albocarinata, Papuina 49: 88-91; 50: 53-4 albocarinata trobriandensis Papuina 49: 88-91 albocarinata, Hygromia, see H. striolata a. albocincta, Terebra 52: 46 albocoopertum, Cerithium 56: 23 albofasciata, Oliva, see O. oliva a. albolabiata, Helicostyla, see H. decorata a. albolabris, Alcadia 48: 12 albolabris. Helix 51: 48 albolabris, Mesodon 57: 132 albolabris, Polygyra 35: 42; 37: 96; 39: 28, 74, 90; 40: 47-8, 66;42: 35, 140; 43: 66; 44: 17, 44, 129; 45: 34; 46: 40-3; 47: 139, 147; 48: 57; 49: 100; 50: 119, 131; 51: 52, 54, 56, 59, 63; 52: 96-7, 124, 127; 53: 86; 54: 90; 55: 15; 58: 25 albolabris alleni, Polygyra 46: 43 albolabris fuscolabris Polygyra 46: 42 albolabris major, Polygyra 46: 40-2; 48: 79, 82 albolabris maritima, Polygyra 46: 138; 52: 124, 127 albolabris, Triodopsis 54: 88-90, 114; 55: 13-5; 57: 71, 136, 138-40; 58: 25-6, 128; 59: 27-8, 68-9, 88-9, 91, 93; 60: 5, 98, 103 albolabris major, Triodopsis 55: 9 albolabris maritima, Triodopsis 60: 98 albolabris traversensis, Triodopsis 58: 63; 59: 68; 60: 98 albolineatus, Chiton 52: 43-4 albolineatus, Chlamys 49: 29 albolineatus, Gyraulus, see G. vermicu- laris a. albolineatus, Pecten 49 : 28-9 albonodosa, Cerithidea 56: 25 albonodosa, Cerithidea, se^ C. hegewischii a. albospinosus , Trophon (Boreotrophon) 45: 66, pi. 4 albovittatum, Cerithium 56: 23 albula, Menestho 35: 87 albula, Terebra 36: 123 albula, Vallonia 42: 123; 43: 134; 44: 114; 54: 28; 56: 53; 57: 131 album, Cardium, see C. gronlandicum a. album, Choanopoma 48: 66 — see also C. chevalieri a. album fuscum, Choanopoma 48: 65 albumen, Buccinum 37: 45 albus, Arion 35: 78 albus, Trachydermon 38: 28; 40: 25 Alcadia 40: 35-6, 41: 22; 48: 12; 54: 70-1; 56: 1, 2, 4 affinis 48: 12 albolabris 48: 12 (P'alliata) brownii 48: 12 (Palliata) brownii labiosa 48: 12 (Palliata) brownii palliata 48: 12 consanguinea 48: 12 dissimulans 40: 88 dubiosa 48: 12 erythrozona 54: 70 gloynei 48: 12 gonavensis 54: 70 gossei 48: 12 haitensis 54: 71 hirsuta 48: 12 hispida 40: 88 (Idesa) hjalmarsoni 54: 70 98 THE NAUTILUS Alternata hollandi 48: 12 intermedia 48: 12 lewisi 56: 4, 9 labiosa, see brownii 1. macilenta 48: 12 major 48: 12 megastoma 48: 12; 54: 70 microstoma 48: 12 minima 40: 88; 56: 4 neebiana 54: 70 nitida 40: 88 oleosa 54: 70 palliata, see brownii p. platychilos 54: 71 (Palliata) pusilla 48: 12 rufa 54: 71 solitaria 48: 12 (Emoda?) striata 54: 71 striatula 54: 71 velutina 40: 88 Alcyna kapiolaniae 36: 121 multicolor, see rubra m. rubra 36: 121 rubra multicolor 36: 121 alderiana, Fadyenia 48: 62 aldrichi, Amnicola 53: 118; pi. 14 aldrichi antroecetes 53: 120-1; 54: 112; 55: 105, pi. 14 aldrichi insolita, Amnicola 53: 119, pi. 14 aldrichi, Anculosa 58: 42 aldrichi, Bythinella 53: 118-20 aldrichi, Pleurobema 41: 139, pi. 3 aldrichi, Somatogyrus 58: 8 aldrichiana, Gastrodonta (Clappiella) 42: 90-1, 93 aldrichiana, Vitrea 42: 90 alemon, Geomelania 56: 3, 9 Alectrion acuta 35: 99 ambigua 35: 99; 39: 85 cooperi 36: 34; 37: 41 festiva 49: 2 fossata 36: 34; 44: 93 fretensis 36: 61; 57: 31 hirta 36: 121; 55: 2 indisputabilis 44: 93 lirata 49: 2 mendica 36: 34; 37: 41; 44: 93 (Ilyanassa) obsoleta 35: 88; 38: 51; 39: 29, 39 perpinguis 36: 34; 37: 41; 44: 93 ravida 36: 121 tegula 36: 34 trivittata 35: 32, 88; 38: 51; 39: 39, 134; 43: 132 vibex 37: 54; 38: 50; 39: 85; 43: 65 Aletes squamigerus 37: 42; 47: 52 aleutica, Acmaea 40: 101 aleutica. Cingula 38: 26; 47: 103 aleutica, Diplodonta 38: 24 aleutica. Natica (Cryptonatica) 38: 26; 47: 102 alexandrensis, Melania 41: 61 Alexandria 40: 71; 47: 36 alexandrinus, Planorbis 54: 33 Alexania 47: 36 Alexia -- also as subgenus of Tralia myosotis 35: 87; 56: 143 Algamorda 58: 112 algicola, Cerithium 39: 86 algonquinensis, Polygyra, see P. multi- lineata a. Alia 36: 34 -- also as subgenus of Columbella lunata 35: 88 aliciae Bulinus (Ameria) 40: 121-2 aliciae, Polygyra, see P. monodon a. Aligena 55: 48-50 aequata 55: 48 cerritensis 55: 49, pi. 4 cokeri 55: 49 elevata 56: 143 laevis 55: 48 nucea 55: 49-51, pi. 4 redondoensis 55: 49, pi. 4 striata 55: 48 Alinoclithon 50: 111-2 alipus, Pecten, see P. pesfelis a. allemani, Eudaphne 45: 143; 47: 76 allemani, Rissoina 45: 143 alleni, Cerion 42, pi. 4 alleni, Urocoptis 42: 141, pi. 4 alligans Sagda 48: 139 Allogona 54: 109 lombardii 58: 34 profunda 54: 145 ptychophora 58: 34 Allopeas 48: 84; 58: 85, 89, 90 -- also as subgenus of Lamellaxis allyniana, Helminthoglypta 54: 125 allyniana kernensis, Helminthoglypta 59: 36 almo, Alvania 41: 141 Alocinma 39: 8 -- also as subgenus of Amnicola Aloidis 40: 43-45 Alopia 43: 144 canescens 36: 67 cyclostoma 36: 67 deaniana 36: 67 A-L-Owensi. Turritella 40: 71 alpestris, Vertigo 41: 42; 53: 128-30; 54: 74 alpicola, Pisidium 42: 26-7 alta, Fissuridea 37: 126 alta, Lanx 38: 75 alta, Metis 36: 34; 46: 111. alta, Neverita 42: 113, pi. 6. -- see also N. reclusiana a. alta, Paphia, see P. tenerrima a. alta, Periploma 47: 85 alta, Peronina 51: 87 alta, Polinices, see P. recluziana a. alta, Polynices, see P. recluziana a. altaspissus, Crassatellites 46: 10 alternata, Anguispira 40: 48, 117; 42: 135, 140; 43: 68, 119; 44: 45, 88, 129; 45: 83, 117, 139; 46: 58-9; 47: 139, 149; 48: 58, 140-2; 50: 120, 133; 51: 57, 59, 60, 131; 99 Alternata INDEX TO 52: 96-7, 127; 53: 47, 87; 54: 88-9, 114, 142, 1-45; 55: 13-5, 22; 56: 62; 57: 132, 135, 137; 58: 26, 110-1, 126-7; 59: 90-1; 60: 35 alternata, Anguispira 58, pi. 6 alternata carinata, Anguispira 44: 17; 46: 91; 52: 12; 53: 85; 55: 23; 58: 127-8 alternata costata, Anguispira 52: 13-3; 55: 22 alternata crassa, Anguispira 43: 106; 47: 147; 55: 8, 22 alternata eriensis, Anguispira 44: 45; 53: 85; 55: 23; 58: 111 alternata Jessica, Anguipsira 52: 11-2, pi. 2 alternata macneilli, Anguispira 43: 106 alternata mordax, Anguispira 44: 128; 58: 127 alternata palustris, Anguispira 43: 106 alternata paucicostata, Anguispira 52: 12, pi. 2; 55: 22 alternata rarinotata, Anguispira 40: 17 alternata smithi, Anguispira 43: 106; 52: 13; 55: 22 alternata, Diadora 46: 121; 57: 32 alternata, Fissurella 46: 121 alternata, Fissuridea 37: 56; 39: 87 alternata dysoni, Fissuridea 39: 87 alternata. Helix 50: 133; 55: 22 alternata australis. Helix 55: 22 alternata costigera, Helix (Patula) 55; 22 alternata laevigatus. Helix 55: 22 alternata, Patula 42: 135 alternata, Pitar 52: 46 alternata, Pyramidula 36: 25; 37: 96; 39: 28; 43: 42-4 alternata mordax, Pyramidula 44: 128 alternata, Siphonaria 38: 61; 51: 49 alternata, Tellina 38: 94; 43: 35; 51: 94; 58: 59 alternatum, Bittium 56: 143 alternatum, Dentaliuni 40: 19 alternatus, Bulimulus 57: 98-9 alternatus hesperius, Bulimulus 38: 37-41 alternatus mariae, Bulimulus 38: 40-1; 42: 66; 47: 16; 49: 105, pi. 7; 55: 32-3; 57: 98-9 alternatus. Discus (Anguispira) 49: 58-9 alticola, Austroselenites 54, pi. 9. alticola, Austroselenites (Zophos) 54: 135-6 alticola. Columella 37: 79; 38: 123; 40: 54; 44: 114; 46: 128; 53: 128, 133; 55: 143 alticola, Nerita 46: 93; 50: 110-3; 54: 67 alticola, Neritina 51: 40-1 altile, Sphaerium 57: 95 altior, Iphigenia 37: 130 altior, Viviparus. see V. georgianus a. altispira. Melongena, see M. corona a. altispira, Polygyra 45: 138; 46: 91; 48: 79. 81 -- see also P. hirsuta a. altispira, Stenotrema 52: 55 altissimus, Gyraulus 44: 22; 45: 118; 50: 116; 51: 130-1 altonensis, Polygyra, see P. multilincata a. altus. Polinices 52: 123 aluco, Cerithium 60: 55 alutaceum, Cerithium 60: 55 Alvania 35: 61; 36: 27; 41: 141; 50: 48; 53: 29-32 aequisculpta 37: 43; 53: 31 alaskana 51: 122 almo 41: 141 carpenteri 51: 123 cimex 53: 29-30 compacta 50: 48 compta 50: 50 cosmia 37: 43; 53: 31 europaea 53: 29 freminvillea 53: 29 halia 53: 31 (Willettia) keenae 53: 31-32, pi. 7 kyskaensis 53: 31 mammillata 53: 29 monserratensis 55: 121 montagui 53: 30 montereyensis 53: 31-2 nemo 53: 31 reticulata 38: 26; 51: 123 sanjuanensis 53: 31 sardea 53: 30 winslowae 41: 141 zetlandica 39: 133 alvarezi, Odontostomus 54: 92 alveare, Pleurocera 52: 127; 53: 74-6; 56: 132 alveata, Venus 51: 94 alveola, Pupa 36: 122 alveus, Acniaea 41: 112-6 amabile, Choanopoma, see C. scabriculum a. aniabile, Pleurobema 36: 82-3 amabilis, Marginella 56: 112-3, 123, pi. 14 Amalia 40: 133 Amalthea antiquatus 60: 55 conica 60: 55 amara, Siphonaria 35: 84 amaranthus, Conus 37: 46 amariradix, Oreohelix 49: 69 amarula, Melania 49: 78 Amastra 45: 126 inflata 38: 81 nucleola 38: 82 textilis 38: 79 turritella 37: 3; 38: 79 amatangana, Camaena 46: 62 amathusia, Chione 37: 129 Amaura -- subgenus of Odostomia Amaurellina moragai 40: 144 AmauroDSis islandica 39: 132 ambatensis, Naesiotus, see N. quitensis a. ambigua, Alectrion 35: 99; 39: 85 ambigua, Cerithidea 56: 21 ambigua, Haliotis 37: 46 ambigua, Hemilastina 36: 98 ambigua. Hyalusagda. see H. similis a. ambigua, Nassarius 58: 62 ambigua, Pittieria 55: 59 ambigua, Rissoina 36: 122 ambigua. Simpsoniconcha 36: 98 aniljigua, Urocoptis 49: 21, 57 100 THE NAUTILUS Amoenum ambigua fortis, Urocoptis 49: 57 ambigua magna, Urocoptis 49: 57 ambigua medinae, Urocoptis 49: 21, 57 ambiguum, Cerithium 56: 21 ambiguus, Pecten 50: 27 ambiguus. Turbo 37: 46 Amblema boykiniana 38: 105; 49: 81 costata 36: 48; 39: 88; 40: 66; 44: 130; 49: 81; 59: 110 elliotti, see A. perplicata e. neisleri 38: 105 perplicata 36: 76; 56: 144 perplicata elliotti 36: 75-6 peruviana 36: 48; 39: 88; 44: 89; 53: 138 plicata 44: 47 Anibloxis olequahensis 36: 142 aniboiana, Micrarionta, see M. hutsoni a. amboinensis, Glycymeris 60: 56 ambustus, Lepidopleurus 49: 42 anibustus, Murex 37: 46 Ameria -- subgenus of Bulinus Amerianna -- subgenus of Isidora americana. Area 60: 71 americana. Area, see A. campechiensis a. americana, Cyrenoida 45: 69 americana, Glycymeris 36: 11; 49: 133; 56: 13; 58: 57 americana, Modiola 59: 68 americana, Odostomia 36: 18; 37: 42 americana, Volsella 59: 68 americanum, Astraea 38: 60 americanuni, Astralium 39: 86 americanus Spondylus 51: 38-9; 54: 21 -- see also S. echinatus a. amethystina, Oliva 42: 10 amethystina, Urocoptis 49: 57 Ametrogephyrus 39: 48-9 amianta, Odostomia (lolaea) 50: 48, Amicula 39: 47-8, 75-6; 50: 142 vestita 39: 76; 50: 142 amiculatus. Chiton 39: 48, 75-6; 50 aniiculatus, Chlamydochiton 39: 47 Amiculum 39: 48 ammiralis, Conus 37: 46 amnion, Helisoma 47: 140, 142; 50: 41, 42; 58: 32 ammon, Planorbis 39: 119; 47: 87-91; 50: 41 Ammonitella 53: 143 lunata 46: 69 yatesi 36: 141 Ammonocerina 40: 134 simplex 40: 134 ammonoides. Nautilus 37: 46 Amnicola 39: 110; 41: 54; 44: 112; 46: 36; 47: 1, 10; 48: 92, 109-10; 52: 30, 61; 53: 118; 54: 66; 57: 68-9; 58: 6, 35, 113-4; 60: 84-7. 105-6 aldrichi 53: 118, pi. 14 aldrichi antroecetes 53: 120-1, pi. 14; 54: 112; 55: 105 50 142 aldrichi insolita 53: 119, pi. 14 antroecetes, see aldrichi a. (Alocinma) annandalei 39: 7 augustina 58: 6 cincinnatiensis 36: 20; 41: 20 emarginata 38: 11; 39: 12; 41: 20; 44: 108; 58: 78 floridana 58: 6 gelida 44: 22 (see also lustrica g.) granum 42: 55 hannai 48: 16 hendersoni 47: 10, 12 idahoensis 47: 11-2 insolita, see aldrichi i. integra 52: 131 judayi 36: 19, 20 lacustris 60: 86-7 leightoni 35: 23; 44: 22 (see also winkleyi 1.) limosa 37: 30; 41: 20; 42: 55, 115, 136; 43: 34; 44: 69; 45: 118; 47: 28; 48: 110; 52: 131; 54: 29; 57: 68-9; 58: 6; 60: 86-7 limosa parva 44: 46 limosa porata 36: 20, 25; 40: 50; 42: 18, 55, 97, 115; 43: 88; 50: 115; 59: 27. 29; 60: 86 longinqua 47: 11; 48: 16; 50: 42; 54: 118 lustrica 36: 25; 47: 12; 48: 110; 57: 68; 60: 85-7 (Marstonia) lustrica 60: 105 lustrica gelida 35: 22 missouriensis 53: 118-9 niozleyi, see winkleyi m. olivacea 52: 131; 58: 7 oneida 35: 23; 40: 50 pallida 42: 55; 60: 85 fspp ^'so limosa p.) peracuta 39: 12 pilsbryi 42: 55 porata 57: 68-9; 60: 85-7, 105 (see also limosa p.) procerpina 54: 112 Proserpina 53: 121, pi. 14; 55: 105 robusta 47: 9, 11-2 rowelli 53: 67 sanctijohannis 58: 6 schrokingeri 36: 20 taylori 40: 108 walkeri 40: 50; 41: 93; 42: 18 winkleyi 35: 23; 36:20; 39: 7-8 winkleyi leightoni 39: 6 winkleyi mozleyi 39: 6 amnicum. Pisidium 35: 105-7, 113, 115; 40: 26; 52: 59 amoena, Cuthona 55: 80-1 amoena, Cypraea, see C. gangranosa a. amoena, Endodonta 41: 128 amoena, Radiodiscus 41: 128 amoena, Raphitoma 57: 107 amoena, Taranis 57: 107 amoenum, Pisidium 48: 48 101 Amosbrowni INDEX TO amosbrowni, Planorbis 43: 138 amosi, Metula 58: 28 Ampelita hemioxia 56: 48-9 novacula 56: 49 shavi 56: 49 xystera 56: 49 Amphibola 45: 106; 58: 112-4 avellana 45: 106 Amphibulima 50: 139-40 Amphicycloteae 36: 15 Amphicyclotus 36: 15-6 Amphidesma aequale 51: 49 aequata 55: 48 transversum 51: 49 Amphidromus 37: 85, 88; 46: 67; 57: 16; 60: 62, pi. 6. comes 37: 85, 88 aborlanensis, see versicolor a. cruentatus 57: 16 demesai, see versicolor d. everetti, see versicolor e. furcillatus 37: 85 negrosensis, see versicolor n. (Syndromus) pattinsonae 57: 16, pi. 6. perversus 37: 86 versicolor 60: 62, 64, 66 versicolor aborlanensis 60: 64 versicolor demesai 60: 63, 65 versicolor everetti 60: 64 versicolor negrosensis 60: 65 virescens 37: 84, pi. 5 xiengensis 43: 52 Amphigyra 58: 15 alabaniensis 58: 15 Amphiperas 37: 45 adriatica 40: 17 cortex 37: 47 ovum 40: 17 Amphissa bicolor 50: 47 Columbiana 44: 93; 50: 47 versicolor 36: 18; 37: 42; 50: 47; 53: 22 Ampliithalamus inclusus 37: 43 amphitrite albicostatus, Balanus 49: 2 ampla, Anculosa 58: 42 ampia, Physa, see P. canadensis a. ampla, Radix 44: 113; 46: 97 ampla, Varicella, see V. caymanensis a. Ampliata -- subgenus of Helicina ampliata fuscocallosa, Helicina 48: 11 amplicostatus, Pecten, see P. gibbus a. amplum, Gyrotoma 58: 48 amplustre, Hydatina 58: 122-3 ampullacea, Ampullaria 39: 33 ampullacea. Bulla 37: 46 ampullacea. Helix 37: 46 ampullacea, Physa 44: 109-10; 48: 140-1; 49: 30-2, 85. 86; 54: 29; 56: 55 ampullacea columbiana, Physa 49: 32, 86 ampullacea propinqua. Physa 49: 85 ampullacea, Physella 42: 125 Ampullacera 45: 105-6 avellana 45: 106 fragilis 45: 106 Ampullaria 38: 111; 39: 32-3, 110; 40: 13, 106; 41: 52; 45: 15; 46: 93-97; 49: 105; 50: 37 ampullacea 39: 33 catemascensis, see patula c. cumingii 49: 104 depressa 46: 94 dolioides 39: 33 fasciata 46: 93, 96, pi. 8; 51: 40; 54: 67 gigas 41: 63 globosa 41: 63-4 gossei 46: 94, 96, pi. 8; 54: 67 hopetonensis 50: 39 luzonica 45: 36 miamiensis 38: 60 orbata 41: 64 palmeri 44: 33 paludosa 41: 53-4; 45: 14 patula catemascensis 36: 36 powelli 40: 12 rotundata 41: 64; 51: 95 urceus 51: 50 Ampullarina 45: 106 africana 58: 113 fragilis 45: 106 Ampullarius 37: 73-75, 77, pi. 4; 39: 2, 4 dolioides 37: 75-6, pi. 4. figulinus 53: 55 gevesensis 37: 75-6, pi. 4. metcalfei 39: 2 olivaceus 39: 2 amussitata, Cellana 49: 2 amygdalis, Bullaria 38: 60 Amygdalum -- subgenus of Modiolus amygdalum Lampsilis 41: 139 Anabathron 52: 11 contabula 52: 111 muriei 52: 110, pi. 4. anacachensis, Holospira, see H. goldfussi a. Anachis 36: 34, 51; 47: 47; 48: 3; 53: 83 -- also as subgenus of Columbella avara 35: 88; 53: 21; 58: 61; 60: 75 avara similis 35: 32; 56: 143 avara translirata 58: 61 chariessa 53: 83, pi. 10 clewistonensis 49: 138-9 dalli 45: 143 floridana 53: 20. pi. 6. fluctuata 37: 124 fusiformis 49: 138 lentiginosa 45: 143 nigricans 45: 143; 52: 44 obesa 58: 61 penicillata 37: 41 pygmaeus 52: 44 serrata 58: 100 similis, see avara s. tabogaensis 45: 143 translirata, see avara t. anachoreta, Helix 46: 11-2 anachoreta, Helminthoglypta, see H. nickliniana a. 102 THE NAUTILUS Ancylodoris Aiiadenulus 57: 114 cockerelli 57: 109, 114 anafcnsis, Microceranius 40: 90 anagogia, Cylichna 36: 121 Anakadia 41: 22; 54: 71 Analogium 42: 108 Anaplocamus 56: 49-50 borealis 56: 49-50 Anatifa carinata 40: 81 engonata 40: 81 Anatina canaliculata 58: 59 lineata 58: 59 trapezoides 40: 42 undulata 38: 99 anatina, Mya 37: 46 anatina, Physa 39: 12; 48: 110, 114 anatinuni. Drepanotrema 47: 64-5, 67-8 anatinus, Planorbis 39: 4; 47: 64-7 anatipes, Pecten 50: 26 Anatipopecten 50: 26 Anauchen 36: 63 anazora, Olivella 47: 47 anceps, Helisoma 48: 17, 59; 50: 115; 54: 7; 56: 132; 57: 46; 58: 32, 69, 78; 59: 27, 29 anceps sayi, Helisoma 50: 115 anceps, Holkeion 44: 68 anceps, Planorbis 58: 12 ancepts, Ranella (Aspella) 36: 122 Anceyia 43: 122 lansingi 42: 91 Anchistoma parvulum 44: 33 Ancilla muscae 39: 104 ancilla, Voluta 46: 112 Ancillaria elongata 39: 104 ancillaria, Physa 37: 30; 42: 59; 43: 84; 47: 9; 57: 9 ancillaria parkeri, Physa 57: 9 ancillaria, Physella 42: 59 Ancistrolepis -- subgenus of Chrysodomus Ancistromesus mexicanus 43: 137 Ancomena 54: 131-2 -- also as subgenus of Haplotrema Ancotrema -- subgenus of Haplotrema Anculosa 38: 131-5, 138-9, 141-2; 41: 59, 86; 43: 11, 16-7; 46: 38-9; 47: 151; 48: 36; 54: 65; 58: 40-1 -- also as subgenus of Melania af finis 46: 40 aldrichi 58: 42 ampla 58: 42 arkansensis 35: 10; 46: 39 brevispira 58: 42 canalifera35: 10:46: 39 carinata 35: 9; 41: 60; 45: 60-1; 46: 38-9; 47: 35; 48: 34, 36 carinata nickliniana 35: 10; 42: 140-1 choccoloccoensis 58: 42 clippeata 58: 41 compacta 41: 58 coosaensis 58: 42 corpulenta 35: 10; 46: 39 costata 35: 10; 46: 39 dentata 35: 9 dilatata 35: 10; 45: 60-1; 46: 39; 56: 50 downiei 58: 41 flexuosa 58: 43 foremani 58: 41 formosa 58: 41 gibbosa 35: 11 griffithiana 46: 38; 58: 42-3 (Lithasia) geniculata 54: 65 harpethensis 35: 11 kirtlandianus 35: 11 lewisii 35: 11-2 ligata 58: 43 lirata 58: 42 littorina 35: 11-2 lucida, see taeniata 1. melanoides 54: 65 minor 35: 10 modesta 58: 41 nickliniana, see carinata n. occultata 58: 42 ornata 35: 10; 46: 39 picta 35: 11; 58: 41 pinguis 35: 11-2 planispira 35: 11 planospira 41: 58 praerosa 35: 11-2; 43: 10-14; 46: 38; 53: 74-6; 56: 132 showalteri 58: 42 subglobosa 35: 10-2; 43: 11-3; 46: 38; 53: 75; 56: 132 sulcata 58: 42 taeniata 58: 41-3 taeniata lucida 58: 42 tintinnabulum 35: 11; 43: 13 trilineata 35: 10; 43: 14-6; 46: 39-40 troostiana 35: 11-2 tryoni 35: 11; 43: 11 (Mudalia) turgida 54: 65 umbilicata 35": 11; 46: 38; 56: 132 variabilis 35: 9 virgata 35: 10-2; 46: 39 viridula 35: 11 vittata 58: 43 Anculosae 36: 69 Anculotus 46: 38 angulatus 35: 11; 43: 14 carinatus 35: 9-10 costatus 43: 16 dentatus 35: 9 kirtlandianus 35: 10 monodontoides 35: 9 nigrescens 35: 9 rogersi 35: 10 trivittata 35: 9 Ancylastrum 35: 5. 57; 38: 83-5; 39: 44-7, 105, 114, 115 fluviatilis 35: 5 simplex 35: 7 Ancylodoris baicalensis 41: 42 103 Ancylus INDEX TO Ancylus 35: 5, 58; 37: 7, pis. 1-3; 38: 74, 85, 138; 39: 45-6, 105, 114-5; 44: 31; 46: 68; 50: 62; 55: 139 adelinus 37: 15-6 aorus 37: 11, 16 barilensis 37: 12 beaui 37: 13, 16 charpentierianus 37: 7, 9, 12 chittyi 37: 7-9, 12, 16 coloradensis 44: 31 complanatus 37: 13, 16 concentricus 37: 12 contracta, see moricandi c. culicoides 37: 12 cumingianus 35: 6-7; 38: 83-4; 39: 45-7, 115 depressus 37: 7 fluviatilis 35: 5-6, 57; 38: 83-5; 39: 44, 46, 114-5 fuscus 35: 62; 37: 13. 31 haldemani 37: 7 hendersoni 40: 56; 44: 31 irroratus 37: 12 irvinae 35: 8 kootaniensis 38: 75 lacustris 35: 5; 38: 84; 39: 46, 114-5; 40: 108 moricandi 37: 11-2 moricandi contracta 37: 10 obliquus 37: 7-8, 12 obscurus 37: 13 patelloides 38: 75 petitianus 37: 7-9 pfeifferi 37: 7 plaearius 37: 10, 16 plagioxus 37: 11, 16 radiatilis 37: 7 raymondi 37: 12 rivularis 37: 31; 42: 59 sallei 37: 14, 16 saulcyanus 37: 12, 16 sibiricus 41: 41 teilhardi 46: 68 titicacensis 38: 103 troschelii 41: 41 walkeri 44: 31 andecola, Paludestrina 38: 103 andersoni, Prophysaon 35: 97; 38: 125; 46: 128; 53: 133; 57: 114 andium, Radiodiscus 58: 30 andrewsae, Mesomphix 35: 43; 46: 91 andrewsae, Omphalina 46: 58-9 ■andrewsae montivaga, Omphalina 46: 58-9 andrewsae, Paravitrea 44: 17; 46: 58 andrewsi, Opisthosiphon 42: 98. pi. 5; 47: 130, 132 andrewsi, Pickworthia 49: 93 andrewsi, Polygyra 38: 140; 39: 80; 40: 3 andrewsi normalis, Polygyra 35: 41-2 anellum, Vcrmiculum 37: 42 angasi. Tethys 38: 34 Angasia tetrica 58: 101 angelica, Acanthina 47: 47 angelica, Oreohelix, see O. yavapai a. angelica, Phenacolimax 39: 32 angelina, Olivella, see O. biplicata a. Angiola 40: 104 Angitrema 35: 58-9; 38: 131, 134, 138-9 -- also as subgenus of Lithasia duttoniana 35: 58 rota 41: 57 angrandi, Clausilia 58: 83-4 angrandi urubamjaensis, Nenia 58: 83, pi. 3 Anguispira 42: 134; 45: 83, 86; 51: 131; 52: 11; 55: 21, 23; 60: 35 -- also as subgenus of Discus alabama, see cumberlandiana a. alternata 40: 48, 117; 42: 135, 140; 43: 68, 119; 44: 45, 88; 45: 83, 117, 139; 46: 58-9; 48: 58, 140-2; 50: 120, 133; 51: 57, 59, 60, 131; 52: 96-7, 127; 53: 47, 87; 54: 88-9, 114, 142, 145; 55: 13-5, 22; 56: 62; 57: 132, 135. 137; 58: 26, 110-1, 126-7. pi. 6; 59: 90-1; 60: 35 alternata carinata 44: 17; 46: 91; 52: 12; 53: 85; 55: 23; 58: 127-8 alternata costata 52: 12-3; 55: 22 alternata crassa 43: 106; 47: 147; 55: 8, 22 alternata eriensis 44: 45; 53: 85; 55: 23; 58: 111 alternata Jessica 52: 11-2, pi. 2 alternata macneilli 43: 106 alternata mordax 44: 128; 58: 127 alternata palustris 43: 106 alternata paucicostata 52: 12, pi. 2; 55: 22 alternata rarinotata 40: 17 alternata smithi 43: 106; 52: 13; 55: 22 carinata, see alternata c. clarki 49: 100 columba, see cumberlandiana c. costata, see alternata c. crassa, see alternata c. cumberlandiana alabama 52: 12 cumberlandiana columba 52: 12 eriensis, see alternata e. eyerdami, see kochi e. Jessica, see alternata j. kochi 45: 84; 55: 23 kochi eyerdami 55: 23 kochi occidentalis 41: 87; 43: 126; 55: 23 macneilli, see alternata m. mordax, see alternata m. nimapuna 45: 82-3, 87 occidentalis, see kochi o. palustris, see alternata p. paucicostata, see alternata p. rarinotata. see alternata r. rugoderma 51: 131 smithi, see alternata s. solitaria 43: 68; 44: 45 104 THE NAUTILUS Anodonta solitaria strontiana 44: 45 strontiana, see solitaria s. angularis, Strepoma 43: 2 angulata, Gonidea 48: 48 angulata, Goniobasis 56: 132 angulata, Goodrichia 45: 71 angulata, Helicina 48: 11 angulata, Limnaea 49: 129 -- see also L. emarginata a. angulata, Lithasia 35: 59 angulata, Mangelia 58: 99 angulata, Oliva 37: 123 angulata, Potadoma (Rhinomelania) 45: 71 angulata, Stagnicola, see S. emarginata a. angulata, Tulotoma 58: 4 angulatum, Epitonium 37: 55; 56: 141; 58: 60 angulatus, Anculotus 35: 11; 43: 14 angulatus. Discus, see D. macclintocki a. and D. patulus a. angulifera, Litorina 35: 68; 37: 53. 55 angulifera, Patula 44: 33 angulifera, Periploma 48: 119 angulobasis, Drymaeus 57: 125 angulorbis 58: 35 angulosa, Melania 35: 11; 43: 14 angulosa, Tellina 60: 19 angulosa, Venus 37: 46 angulosum, Buccinum 51: 123 angulosum transliratum, Buccinum 51: 125 Angulus 45: 109; 53: 79 -- also as subgenus of Tellina. carpenteri 36: 34 modestus 45: 109 tenellus 45: 109 tener 45: 109 Angulyagra 56: 124, 128, 129 annulata 56: 128 costata 56: 128 oxytropis 56: 129 oxytropoides 56: 128 polyzonata 56: 128 quangdungensis 56: 128 thersites 56: 128 angustatum, Musculium, see M. truncatum a. angustior, Euglandina, see E. texasiana a. Angustipes 39: 15, 18; 44: 133, 135-6 -- also as subgenus of Vaginulus angustipes, Vaginula 39: 15-6; 44: 136 angustispira, Hyalosagda 48: pi. 8; 49: 52 Angustula 51: 127 -- also as subgenus of Vertigo Anisodoris 36: 90 nobilis 36: 90, pi. 2 Anisoradsia 39: 36 annae, Cypraea 50: 51-2; 57: 22-3, 27 annae, Dosinia 52: 45 annandalei. Aninicola (Alocinma) 39: 7 annectans, Gyraulus 47: 27 annettae, Cypraea 37: 124; 46: 113 anniae, Murex 54: 44-5 Annularia 37: 91 aurantiaca 37: 91 blaini 40: 88 fimbriata 37: 91 illustris 37: 91; 40: 88 semicanus 40: 88 annularis, Vitrina 50: 10 Annularodes -- subgenus of Choanopoma annulata, Angulyagra 56: 128 annulata, Cypraea 50: 78; 57: 83 annulata, Oliva, see O. emicator a. annulata, Pustularia 58: 144 annulatum, Dentalium 40: 20 Annulicallus 59: 2, 7; 60: 17 Annulicaulis 39: 14, 18 annulus, Cypraea 38: 91; 40: 142; 51: 2; 52: 6, 103-4; 55: 2; 57: 83-5; 58: 129-30, 133, 144; 60: 55 Anodon longinus 36: 8 rioplatensis 36: 9 trautwiniana 36: 9 anodon, Sagda 49: 53 Anodonta 36: 7; 38: 10; 41: 86, 143; 44: 112; 46: 137; 49: 83; 50: 17; 52: 35, 99; 53: 141; 55: 20-1 arnoldi 36: 141 (Euphrata) bahlikiana 55: 20 benedictensis, see grandis b. beringiana 40: 76; 46: 125; 52: 57 blainvilliana 36: 8 californiensis 41: 76; 42: 120-1;44: 110; 50: 41 cataracta 37: 29, 95, 97; 40: 91-2; 51: 134-5; 54: 52 ciconia 36: 8 corpulenta 35: 17-8; 36: 97-8; 39: 91 cygnea 53: 141; 55: 20 decora, see grandis d. exotica 36: 7, 9 footiana 38: 110 (see also grandis f.) forbesiana 36: 8 fragilis 44: 69 gigantea, see grandis g. grandis 36: 7, 9, 97-8. 126-7; 39: 91; 41: 19; 44: 47, 90, 130; 52: 99, 101; 55: 20, 108; 59: 29, 110 grandis benedictensis 36: 97; 42: 51 grandis decora 42: 51 grandis footiana 36: 24; 38: 10; 39: 122; 40: 50; 42: 51, 96, 115, 136 grandis gigantea 36: 98; 39: 91 grandis grijalvae 36: 9 grandis imbricata 38: 10 grandis kennicotti 36: 98 grandis pepiniana 36: 98 grandis plana 42: 115 grijalvae, see grandis g. inibecillis 35: 19; 36: 97; 39: 91; 47: 147; 52: 100; 55: 108 imbricata, see grandis i. implicata 37: 95; 40: 91 impura 44: 107 105 Anodonta INDEX TO kenneriyi 48: 48; 55: 18 kennicotti 42: 96; 50: 114; 58: 79 (see also grandis k.) magnifica 55: 20 marginata 38: 93; 40: 50, 114; 41: 84, 92 nioricandi 36: 9 napoensis 45: 17 nuttalliana 41: 76 oregonensis 41: 76 pepiniana, see grandis p. plana, see grandis p. shaefferiana 39: 93 stewartiana 39: 91 suborbiculata 36: 98; 39: 91; 51: 48 trapezialis 36: 7 vescoiana 53: 141; 55: 20 walilamatensis 41: 76 woodiana 55: 20-1 Anodontites 36: 7-10; 39: 33; 43: 128; 45: 16-7; 53: 55 bridgesi 38: 54 colombiensis 43: 128-9; 45: 16 crispata 36: 7; 43: 128-30; 44: 41; 45: 16-7, 19; 47: 74 crispatus salmoneus 53: 54-5, 137 darochai, see trapesialis d. flucki 38: 53-4, pi. 1 incarum 38: 54 infossus 53: 138 (Ruganodontites) napoensis 45: 17 nicaraguae 38: 54 obtusus 53: 54 palmeri 44: 33 riograndensis 36: 8 salmoneus, see crispatus s. schadei 48: 34 tenebricosus 55: 94 trapesialis 39: 3 trapesialis darochai 53: 54 valdivianus 38: 54 Anodontoides 36: 123 birgei 36: 123-5 buchanensis 36: 125 (see also ferus- sacianus bO ferussacianus 36: 98, 123-5; 41: 108 ferussacianus buchanensis 36: 98, 124; 45: 44; 59: 110 modesta 36: 124; 36: 98 anodontoides, Lanipsilis 35: 17-8; 36; 54, 101; 40: 66; 43: 90-1; 49: 81 anodontoides fallaciosa, Lanipsilis 39: 93 anodontoides, Unio 39: 93 Anoma albida, see splendens a. alboanfractus 49: 21 cinerea, see tesselata c. citrina, see splendens c. concinna, see levis c. corpulenta, see striata c. flexuosa 58; 31 gracilis 49: 57 leucostoma, see nigrescens 1. levior, see nigrescens 1. and splendens 1. levis concinna 49: 57 medinae, see splendens m. nigrescens 49: 57 nigrescens leucostoma 49: 57 nigrescens levior 49: 21, pi. 2 nigrescens rufilabris 49: 57 quadricolor 49: 21 (see also splendens q.) roseolabris, see splendens r. rufilabris, see nigrescens r. sinuata 49: 21 splendens 49: 57; 58: 31 splendens albida 49: 57 splendens citrina 49: 57 splendens levior 49: 57 splendens medinae 49: 21, 57, pi. 2 splendens quadricolor 49: 57 splendens roseolabris 49: 57 striata 49: 57 striata corpulenta 49: 57 tesselata 58: 31 tesselata cinerea 49: 57 anomala, Bailya 58: 36 anomala, Pleurodonte 49: 55 anomala convexa, Pleurodonte 49: 55 anomala, Solenosteira 37: 122-3 Anomalocardia 36: 51; 56: 79 brasiliana 39: 84; 60: 19 broggi 56: 78-9, pi. 8 cuneinieris 37: 54 flexuosa 39; 84 subimbricata 56: 79 subrugosa 37; 129; 52; 44; 56; 78 anomalum, Choanopoma 48: 60 anomalum, Choanopoma (Jamaicia) 48: 64 anomalum, Teinostoma 59: 1 anomalus, Spiraxis 49: 25; 53: 15-6 anomalus hollandi, Spiraxis (Euspiraxis) 49: 25; 53; 16, pi. 5 anomalus, Triton 58: 36 Anomia 36: 35; 41; 16-7 aculeata 35; 31; 39: 39; 40: 23; 50: 102; 56: 59; 58: 138, 141 adamas 37: 128; 57: 5 electrica 37: 47 electrum 37; 47 ephippium 37: 47 forata 37: 48 glabra 41 : 15 laqueata 49: 2 peruviana 37: 128 scobinata 37: 51 simplex 35: 31; 37; 55; 38; 49; 39; 39, 83; 49: 117; 54: 21; 56: 141; 57: 67; 58: 57 tabacca 37: 51 anomioides, Pedalion 52: 45 anoniphalus, Bostryx (Peronaeus) 57; 123 Antalis -- subgenus of Dentalium Antediplodon 43; 107 antefilosa, Ceritliiopsis (Cerithiopsidella) 37; 42 anteridon. Triodopsis, see T. rugosa a. 106 THE NAUTILUS Aporrhais anthoniana, Hyalosagda (Stauro^lypta) 48: 136; 49: 52 anthoniana invasa, Hyalosagda (Stauroglypta) 49: 52 anthonyi. Discus 48: 140-1 -- see also D. cronkhitei a. anthonyi, Eurycaelon 43: 12; 45: 35 anthonyi, Goniodiscus 43: 68 anthonyi, Gonyodiscus 42: 135 anthonyi, Pyramidula, see P. cronkhitei a. Anticlimax 60: 12 Antigona listeri 39: 83 multicostata 37: 129; 57: 5 antillarum, Lithophaga 54: 39-40 antillarum, Lyropecten 56: 110 antillarum, Oxynoe 56: 80 antillarum, Pecten 49: 117; 56: 124, pi. 14 antillarum. Trigoniocardia 49: 118 antillarum, Vaginulus (Angustipes) 40: 104 antillensis, Limopsis 49: 117 Antillophos -- subgenus of Tritiaria antiperversa, Clausilia 40: 70 Antiplanes diomedea 58: 108 profundicola 58: 108 antipodarum, Potamopyrgus 52: 87; 60: 104 antipodum. Ischnochiton 58: 101 antiqua, Area 45: 107 antiqua, Leptachatina 38: 83 antiqua, Lithasia 58: 35 antiqua, Neptunea 54: 125-6; 56: 69 antiqua, Patella 37: 46 antiquata. Patella 37: 46 antiquatus, Amalthea 60: 55 antiqu.-tus, Hipponix 37: 43; 44: 93; 50: 48 antiquus contrarius, Fusis 56: 69 antiquus, Magilus 44: 28 antisana, Naesiotus, see N. quitensis a. antonionis, Urocoptis, see U. lata a. antroecetes, Amnicola, see A. aldrichi a. antrosa, Cucullaea 42: 114 antrosa, Helisoma 40: 85-7; 42: 56-7, 97; 44: 128, 130; 47: 9; 48: 110; 52: 130; 54: 7, 53, 144; 58: 12 antrosa cahni. Helisoma 40: 85-7 antrosa jordanensis, Helisoma 42: 97 antrosa minnesotensis, Helisoma 40: 86 antrosa percarinata, Helisoma 44: 46; 57: 8 antrosa portagensis, Helisoma 40: 85-6 antrosa shallensis, Helisoma 40: 86 antrosa unicarinata, Helisoma 40: 50-1 antrosus, Planorbis 36: 25, 144; 37: 30, 97; 38: 43; 40: 17, 60, 79; 42: 115, 120, 141; 43: 34, 88; 44: 69 antrosus latchfordi, Planorbis 40: 79 antrosus percarinatus, Planorbis 40: 79 antrosus portagensis, Planorbis 40: 60 antrosus striatus, Planorbis 40: 60; 42: 17; 43: 83 antrosus unicarinatus, Planorbis 36: 25; 42: 115 anus. Distorsio 55: 2 anus, Murex 37: 46 aopta, Helicostyla (Calocochlea) 47: 116 Aorotrema 59: 11 cistronium 59: 11 erraticum 59: 11, pi. 2 pontogenes 59: 11 aorus, Ancylus 37: 11, 16 Apera 48: 142; 55: 63 Aperostoma 36: 14-5; 40: 63; 56: 137-8; 57: 62, 64 blanchetianum 56: 138; 57: 64 inca 56: 138 jamaicensis 56: 137 major, see translucida m. mexicanum 56: 137; 57: 64 montezumi 36: 15 salleanum 40: 63 (Cyclohidalgoa) translucida major 57: 47 volvulus 57: 64 aperta, Lymnaea (Pseudosuccinea) 40: 35 aperta, Macrospira 44: 140 aperta, Purpura 40: 80-1 apertum, Megalomastoma 40: 90 apertus, Streptaxis 45: 30 apex, Helicodiscus 56: 56 apex, Helix 49: 25 apexfulva, Achatinella 58: 35-6 Aphanoconia 42: 70; 48: 53-4 -- also as sub- genus of Helicina Aphrodite — subgenus of Cardium apicalis, Turritella 59: 144 Apicina 35: 136 apicina, Acmaea 40: 101 apicina, Lymnaea 39: 125; 44: 76 apicina, Marginella 37: 54; 39: 85; 58: 62 apicina, Patella 40: 101 apicina, Stagnicola 39: 120; 45: 139-40 apiculata, Chaetopleura 36: 61; 56: 58; 58: 56 apiculata, Quadrula 39: 90 apiculatus. Chiton 51: 94 apiculatus, Unio 39: 90; 51: 93 apiculum 58: 85 Aplexa 40: 76, 108 glabra, see hypnorum g. hypnorum 36: 25; 37: 30; 40: 51; 42: 17, 19, 134; 43: 84; 47: 2-3; 48: 100; 52: 125; 53: 134-5; 59: 29 hypnorum glabra 48: 60 hypnorum pilsbryi 48: 100; 50: 14 microstriata 44: 106 pilsbryi, see hypnorum p. rivalis 44: 106 Aplustre 43: 72 Aplysia 50: 97 californica 36: 94, 96; 48: 43 apollo, Polydontes 52: 37-41, pi. 3 Apolymetis 54: 141-2; 55: 64-5 Apoma -- subgenus of Brachypodella Aporrhais bilobata, see pespelicani b. labradorensis, see occidcntalis 1. 107 Aporrhais INDEX TO mainensis, see occidentalis m. occidentalis 35: 32, 89; 39: 29, 133; 44: 1-2, pi. 1; 56: 59 occidentalis labradorensis 44: 3-4 occidentalis mainensis 39: 133; 44: 1, 3; 57: 29 pespelicani 44: 3 pespelicani bilobata 44: 4 aporrhais, Strombus 37: 46 appalachicola, Cochlicopa, see C. lubrica a. appendiculata, Succinea 50: 139 applanatus, Planorbis 54: 97 -- see also P. tenuis a. appressa, Helix 51: 93 appressa, Limnaea 50: 139 -- see also L. stagnalis a. appressa, Polygyra 38: 5, 6; 40: 66; 43: 67; 44: 17; 46: 48-9; 51: 23-4; 53: 98 appressa extrema, Polygyra 53: 98 appressa fosteri, Polygyra 46: 48-9; 51: 23; 52: 96; 53: 98 appressa hubrichti, Polygyra 51: 23-4 appressa linguifera, Polygyra 38: 4-5; 39: 74, 80; 46: 48; 53: 98 appressa perigrapta, Polygyra 46: 58-9, 91; 47: 147; 48: 106; 51: 24; 52: 97; 53: 98 appressa sculptior, Polygyra 38: 5; 46: 48 appressa tryoni, Polygyra 53: 98 appressicostatum 55: 121 appressus, Mesodon 56: 61-2; 58: 127-8; 59: 49 appressus sanctageorgiensis 59: 49 apprimus, Diplodon 47: 72, 74 approximans, Polygyra 47: 144 aquatile, Cyniatiuni 35: 121; 60: 55 aquae-albae, Micrarionta 43: 75 Aquebana 52: 143; 54: 58-9 -- also as subgenus of Suavitas pubescens 54: 59-60, pi. 4 (Exsuavitas) pubescens 52: 143 velutina 52: 143; 54: 58-9, 61, pi. 5 arabica, Cypraea 52: 3, 6, 104-5; 55: 2; 57: 83; 58: 129-30 arabicula, Cypraea 37 : 125; 45: 77, 82; 52: 45 aracacensis, Planorbis 47: 66-7 aracasensis, Planorbis 47: 66-7 arachnoidea, Goniobasis 38: 47; 41: 58; 42: 31; 56: 133 arachnoides, Spondylus 51: 38 arakanensis, Planorbis 47: 67 arangiana, Pleurodonte 40: 90 arata, Camaena 46: 63 Aratrum 43: 72 arausiaca, Nerita 37: 46 arausiaca flava, Nerita 37: 46 arborea, Pittie'-ia (Shuttleworthia) 55: 55-6, 59, pi. 5 arborea, Zonitoides, see arboreus, Zonitoides arboreoides, Hyalosagda 49: 53 arboreus, Zonitoides 35: 36, 41, 43; 36: 25, 37-8; 37: 66-7, 69, 79, 97; 39: 70, 80, 124; 40: 16, 48, 54, 58, 77, 104, 113; 41: 20, 34; 42: 15, 20, 66, 91-2, 124, 135; 43: 42, 44, 55, 58, 60, 67, 81, 114, 118-9, 121, 133; 44: 38, 45, 88, 99, 114, 129; 45: 37, 117; 46: 58-9, 91; 47: 2, 8, 139, 147; 48: 47, 58, 81, 115; 49: 25, 100; 50: 117, 120; 51: 57, 59, 63, 106; 52: 29, 95-7; 53: 47, 86; 54: 29, 31, 88-9, 96, 111, 114, 117; 55: 7-8, 10, 14, 32, 97, 143-4; 56: 54; 57: 132; 58: 69, 78, 110, 125, 127; 59: 28, 90-3; 60: 3, 99-100 arborum, Limax 52: 138; 54: 74 arbustorum, Helicigona (Arianta) 50: 134 arbustorum, Helicogona 44: 71 Area 36: 51, 110; 42: 113; 44: 30; 45: 104, 107, 118-20; 46: 27-8; 49: 64; 53: 38; 59: 66 adamsi 49: 116; 60: 19 (Barbatia) adamsi 39: 82 (Scapharca) aequatorialis 37: 127 americana 60: 71 (see also campechien- sis a.) antiqua 45: 107 auriculata 49: 116, 133-4; 52: 27 (Scapharca) auriculata 39: 82 (Scapharca) aviculoides 37: 127 barbata 38: 60; 49: 64, 116 bisulcata 60: 19 brasiliana, see incongrua b. campechiensis 49: 133; 54: 20; 58: 56; 60: 19 (Argina) campechiensis 39: 82 campechiensis americana 58: 56 (Scapharca) campechiensis pexata 38: 49; 43: 35; 56: 141 Candida 52: 29; 60: 19 chemnitzi 54: 20 (Barbatia) chemnitzi 46: 123 cymbula noae 37: 47 decussata 60: 56 deshayesii 35: 121 (Scapharca) emarginata 37: 127 floridana 37: 55 ^Scapharca) formosa 37: 127 fusca 60: 56 (Barbatia) gradata 37: 127; 45: 127-8; 46: 28, 29 grandis 49: 18; 52: 44; 57: 5 (Scapharca) grandis 37: 127; 45: 79; 46: 111 holmesii 60: 71 idiodon 42: 66 illota 52: 44 (Barbatia) illota 37: 127; 46: 110 incongrua 43: 35; 49: 133; 55: 142; 58: 56 incongrua brasiliana 60: 19 labiata 48: 120 (Scapharca) labiata 37: 127 (Barbatia) lasperlensis 37: 127 lienosa 51 : 49 108 THE NAUTILUS Argutus limula 42: 84; 49: 133 lithodomus 37: 126 (Barbatia) lurida 37: 126 multicostata 46: 109 mutabilis 52: 44 noae 59: 66 (see also cymbula n.) (Scapharca) nux 37: 127; 55: 121 (Scapharca) obesa 37: 127 occidentalis 35: 121; 37: 55; 39: 82; 49: 116, 133; 54: 21; 58: 56 ocellata 60: 56 (Noetia) olssonl 37: 126 pacifica 37: 126; 46: 110, 114; 47: 82 pernoides 46: 29 pexata 41: 15; 60: 71 (see also campech- iensis p.) ponderosa 36: 60; 37: 55; 39: 82; 41: 15; 42: 83-4; 43: 35; 49: 133 (Noetia) ponderosa 54: 127 (Barbatia) reeveana 37: 126 reticulata 46: 28-9; 49: 116; 58: 56 (Noetia) reversa 37: 126 scapha 37: 51 scaphaciuncula 37: 51 secticostata 49: 133-4; 58: 56 (Scapharca) secticostata 39: 82 semitorta 45: 104 solida 52: 44 (Barbatia) solida 37: 127; 46: 28-9 staminea 51: 49 tenella 60: 56 tortuosa 45: 104 transversa 36: 11; 38: 49; 39: 82; 41: 15; 43: 132; 49: 133; 54: 20; 56: 141; 58: 56 (Scapharca) tuberculosa 37: 127; 45: 74, 79 umbonata 38: 60; 39: 82; 49: 116; 54: 21; 58: 56 wagneriana 59: 144 zebra 51: 94 Archachatina 51: 33-4; 52: 26-27 adelinae 52: 27 adelinae candefacta 52: 27 bicarinata 52: 26 candefacta, see adelinae c. and modestior c. marginata 51: 34 modestior candefacta 52: 27 Archegoptis 49: 142 archeri, Helicostyla, see H. subcarinata a. Archicypraea 40: 18 lioyi 40: 18 archiniedis, Pyrgulopsis 60: 76, 148, pi. 7 Architectonica 48: 129; 50: 30; 54: 107; 57: 5; 60: 9 gemma 59: 81 granulata 37: 125; 43: 35; 51: 91; 52: 44; 54: 20 (Episcynia) inornata 59: 80; 60: 8-9 archon, Conus 57: 4 Arcidens confragosus 35: 17; 36: 97; 39: 90; 56: 144 arcinella, Chama 37: 55; 47: 85 arcinella, Echinochama 39: 83; 51: 74; 78- 9; 54: 21; 56: 117-8, 123, pi. 13; 58: 58 arcinella cornuta, Echinochama 51: 79 arctatum, Mesodesma 36: 60; 40: 25; 57: 31 arctatus, Spiraxis (Versutaxis) 53: 89, 93, pi. 11 Arctica islandica 56: 60; 57: 67 artica, Astarte 40: 24; 51: 125 arctica, Lymnaea 47: 9 -- see also L. vahlii a. arctica, Panomya 40: 25; 49: 34; 50: 90 arctica, Pristiloma 38: 125; 43: 96, 124; 46: 128; 50: 87; 53: 63, 133 arctica, Saxicava 35: 32; 36: 107; 38: 25; 40: 25, 43; 43: 50; 44: 92; 47: 102; 51: 9; 52: 46; 54: 2-4; 56: 61, 140; 58: 59 arctica, Vertigo 53: 128-30 arctica, Yoldia 36: 107 arcticum, Pisidium 52: 82 arcticus, Planorbis 38; 11 arcticus. Polypus 35: 31-2 Arctonchis 51: 87-8 borealis 50: 47 arcuata, Nuculana 48: 118, pi. 6 arcuata paradisi, Varicella (Euvaricella) 49: 23, 26, pi. 2 arcuatus, Spiraxis (Pseudosubulina) 52: 134; 53: 94, pi. 5 Arcularia 36: 51 arcularia, Nassarius 45: 108 arenaria, Mya 36: 28-9, 138; 38: 2-3, 50, 89; 39: 29; 40: 25, 77; 41: 12, 15; 43: 50; 45: 138; 51: 9; 56: 61, 142; 57: 67, 69; 58: 22-4, 59, 137-141; 59: 97; 60: 108 arenaria, Succinea 43: 62; 53: 133 arenicola, Conulinus 46: 102 arenifera, Valvata 51: 93; 60: 5 arenosa, Cypraea 50: 77; 51: 2; 52: 104; 57: 23-4, 83-4 arenosa, Lyonsia 40: 23 arenosa, Pandora 49: 119 areolata, Cingula 39: 132 areolata, Micrarionta 46: 74 areolata, Turbonilla 56: 144 aresta, Callocardia 56: 33 argentata, Cellana 40: 80 argentatus, Heliconiscus 40: 80 argenteum, Pleurobema, see P. ovifornie a^ Argina -- subgenus of Area argo, Argonauta 35: 62 Argobuccinum 46: 54; 47: 102 oregonense 38: 27; 44: 93; 46: 53; 47: 102; 60: 93 Argonauta argo 35: 62 cymbiuni 37: 47 argonautaea, Sepia 37: 46 argus, Cypraea 52: 104; 55: 2; 57: 83; 58: 130 argutus, Lamellaxis (Leptopeas) 53: 92; 58: 90-2 109 Arianta INDEX TO Arianta -- subgenus of Helicigona arida, Helminthoglypta, see H. graniticola a. Ariolimax 50: 136-7, 140; 58: 33 brachyphallus, see californicus b. californicus 35: 35 californicus brachyphallus 58: 33 columbianus 50: 136; 55: 99, 101; 56: 96-7; 58: 107 columbianus maculatus 40: 76 dolichophallus 58: 33 maculatus, see columbianus m. Arion 35: 77-8; 117-8: 54: 74: 57: 53 albus 35: 78 ater 35: 78, 118; 38: 72, 92-3; 42: 104; 50: 131-3 (see also empiricorum a.) ater rufa 42: 104 circumscriptus 36: 105; 38: 72; 40: 72; 46: 107; 50: 100, 134; 51: 140; 52: 96; 54: 69; 55: 61; 59: 92 circumscriptus leucophaea 46: 107 empiricorum 35: 78, 118; 50: 131, 134 empiricorum ater 50: 131 fasciatus 38: 93 fuscatus 35: 78 hortensis 35: 78; 36: 105; 38: 72; 40: 113; 41: 32; 50: 134 intermedius 40: 72; 57: 110 leucophaea, see circumscriptus 1. rufus 35: 78 (see also ater r.) subfuscus 38: 72; 40: 72; 50: 134 Ariophanta alba, see laevipes a. citrina 50: 30 laevipes alba 43: 54 aristata, Lithophaga 48: 4; 52: 45 arizonensis, Vertigo, see V. gouldii a. arkansensis, Anculosa 35: 10; 46: 39 armadilla, Onchis 51: 86 armatum, Chondropoma 48: 66 armeniaca, Cypraea 40: 130 armifera, Gastrocopta 36: 63; 40: 16, 48, 66; 41: 20; 42: 20; 43: 44, 68, 118; 44: 17, 44, 88; 45: 116; 50: 98, 121; 51: 57, 106; 52: 15, 29, 96-7; 53: 47, 88; 58: 128 armifera abbreviata, Gastrocopta 53: 77-8 armifera clappi, Gastrocopta 50: 98 armifera ruidosensis, Gastrocopta 60: 22 Armiger 59: 70 -- also as subgenus of Planorbis crista 60: 70 imbricatus 55: 131 armigera, Lithasia (Angitrema) 35: 59; 53: 74-6; 56: 132 armigera stygia, Lithasia 53: 74-6; 56: 132 armigera, Planorbula 40: 51; 41: 20; 42: 136; 43: 42; 45: 118; 48: 59; 58: 13, 78 armigera, Polygyra, see P. columbiana a. armigera, Segmentina 37: 30; 38: 11; 40: 61; 42: 133 armigera, Thais 60: 55 armigerus, Planorbis 54: 33-4 armillata, Chaetopleura 58: 100 armillatum, Bittium 44: 93 Armsia 45: 125-6 petasus 45: 125 arnheimi, Macoma, see M. inquinata a. arnoldi, Anodonta 36: 141 arnoldiana, Goniobasis 48: 15 Aroa 44: 143 Aroapyrgus 44: 143 arragonites, Acanthochiton 58: 102 Arrhoges 44: 3 occidentalis 44: 2 arrosa, Epiphragmophora 35: 35 arrosa, Helix 36: 13; 46: 11-4 arrosa, Helminthoglypta 51: 79-80, 82, 84, 121 arrosa expansilabris, Helminthoglypta 46: 14; 51: 84-5 arrosa holderiana, Helminthoglypta 55: 98- 9, 101 arrosa mailliardi, Helminthoglypta 40: 125; 46: 11, 13-4 arrosa mattolensis, Helminthoglypta 51: 83-4, pi. 8 arrosa miwoka, Helminthoglypta 51: 81 arrosa pomoensis, Helminthoglypta 51: 81- 2, pi. 8 arrosa rubicunda 51: 82, 84 arrosa stiversiana, Helminthoglypta 51: 80 arrosa williamsi, Helminthoglypta 51: 79, 80, pi. 8 arteaga, Kurtzia 58: 108 artemisia, Bulimus 50: 135 artemisiae, Urocoptis 45: 88 Artemon 38: 88; 41: 127 artensis. Turbo 60: 55 aruanus, Megalatractus 52: 18 aruanus, Murex 37: 46; 52: 18-9 arubanus, Microceramus, see M. bonairensis a. Asaphis 38: 58; 60: 36 deflorata 49: 119 asbestoides, Acanthochiton 58: 102 ascendens, Bostryx, see B. derelictus a. asellus, Cypraea 52: 104; 57: 83; 58: 130, 144 Ashmunella 39: 70; 40: 4-5; 41: 86-90; 45: 141; 46: 19; 54: 109 carlsbadensis 46: 19 chiricahuana 45: 141 cockerelli 40: 5 esuritor 49: 68 hebardi 36: 119 heterodonta, see levettei h. kochi 36: 120 levettei heterodonta 54: 110 mearnsi 36: 119-20 metamorphosa 49: 67-8 mutator, see tetrodon m. organensis 49: 101-2 tetrodon mutator 54: 110 walkeri 36: 120; 40: 4; 46: 19 ashmuni, Gastrocopta 54: 30-1 110 THE NAUTILUS Atrata asiatica, Eulota 41: 43 -- see also E. frutlcuni a. asiatic-uni, Sphaerium 52: 59 asnii, Acmaea 36: 18; 50: 49 Asoleiie 47: 71-2 (Surinamia) fairchildi 47: 71, pi. 7 Aspasita 36: 63 Aspatharia (Spathopsis) wahlbergi 53: 54 Aspella -- also as subgenus of Ranella elizabethae 53: pi. 10; 54: 63 obeliscus 52: 44 aspera, Diadora 38: 27; 43: 109; 50: 49; 51: 123 aspera, Helix 44: 139-40 aspera, Quadrula 39: 90 aspera, Thelidonius 44: 139 aspera, Tritonalia, see T. lurida a. asperata, Brotia 49: 74, 77-9 asperata, Quadrula 36: 76, 78 asperatus, Unio 36: 77 asperella, Chama 47: 85 asperella, Fissurella (Cremides) 37: 126 Asperitas 50: 30; 51: 104 Asperoscala-- subgenus of Epitonium asperrima, Chione (Tinioclea) 37: 129 asperrimus, Unio 39: 89 aspersa, Bullaria 37: 122 aspersa, Calyptraea 39: 9 aspersa, Helix 37: 5; 40: 108, 134; 41: 139-40; 44: 30, 71, 102; 49: 113-4; 50: 133, 135; 52: 97, 138; 55: 99-101; 59: 144 aspersa, Littorina 46: 45; 52: 45; 57: 31 aspersa, Pomatia 49: 113-4 aspersum, Cardium 37: 129 aspersus, Pecten 50: 55 Aspidophorus 48: 143 aspinosa, Melongena, see M. corona a. assimilata, Cerithiopsis 47: 47 assimilis, Glycymeris 47: 86 assimilis, Haliotis 60: 92 Assiminea 40: 107; 54: 119-21 californica 36: 18 colonibeliana 54: 120-1 colonibiensis 54: 120 grayana 54: 119-20 scalaris 53: 68; 54: 120-1 Astarte 38: 51; 47: 116; 54: 2, 4, 5; 59: 108 alaskensis 38: 24 arctica 40: 24; 51: 125 borealis 40: 24 borealis sericea 40: 24 castanea 40: 24; 51: 48; 54: 127; 56: 60, 142 communis 59: 108 crenata 40: 24 elliptica 40: 24 esquimalti, see rictocyma e. fabula 40: 24 globosa 40: 24 portlandica 35: 32 rictocyma esquimalti 38: 24 sericea, see borealis Sc striata 40: 24 subaequilatera 40: 24 subaequilatera whiteavesii 40: 24 undata 40: 24; 56: 140 whiteavesii, see subaequilatera w. astartoides, Pisidium 40: 26 asteriscus, Helix 39: 135 asteriscus, Planogyra 41: 122-3; 59: 124 asthenes, Ischnochiton (Lepidozona) 37: 43 Asthenothaerus balesi 57: 33 Astraea americanum 38: 60 brevispina 52: 27 (Uvanilla) buschii 37: 126 caelata 53: 38 (Pachypoma) inaequalis 50: 49 longispinum 38: 60; 50: 30 petrosum 60: 55 tuber 38: 60 (Pomaulax) undosus 37: 43 unguis 52: 44-3 Astralium americanum 39: 86 cubanum 39: 86 longispinum 39: 86 olfersi 39: 86 astrica, Mitra 36: 122 astricta, Odostomia (Chrysallida) 50: 47, 50 atahualpa, Epiphragniophora 57: 119 atahualpa, Neopetraeus 57; 88 atalanta, Chloritis 47: 23, pi. 3 atalanta, Papuina, see P. williamsi a. Astyris 41: 104; 45: 108 holbbllii 39: 134 lunata 36: 11 rosacea 39: 134 tuberosa 58: 100 Ataphrus pembertoni 43: 24, pi. 1 atavus, Pleurodonte 49: 56 Atea 47: 62 ater, Arion 35: 78, 118; 38: 72, 92-3; 42: 104; 50: 131-3 -- see also A. empiricorum a. ater rufa, Arion 42: 104 ater, Limax 35: 78; 50: 132 aterina, Goniobasis 50: 84; 52: 125 aterrima, Crassispira 47: 47; 52: 45 aterrima, Oopelta 48: 143 athenia, Oliva 42: 12 athleenae, Climacia 59: 77-9 atkinae, Urosalpinx, see U. cinerea a. atkinsi, Urocoptis, see U. livida a. atlantica, Casmaria 58; 107 atlantica, Xylophaga 56; 68, pi. 6 atlanticum, Pisidium 58: 51 atlantis, Lucina (Lucinoma) 49: 87, pi. 5 atlantis, Scaphella (Aurinia) 60: 108 atopus, Carinifex 43: 143; 44: 77-9 Atoyac 42: 36 atoyacensis, Spiraxis, see S. sulciferus a. atra, Helicostyla, see H, lignaria a. atra, Nerita 37: 46 atrata, Lymnaea 52: 57 Atratum INDEX TO atratum, Cerithium 35: 120-1; 39: 86; 46: 118 atratus, Modiolus 49: 2 Atrimitra 47: 145 -- also as subgenus of Strigatella Atrina 53: 53; 59: 58 rigida 51: 76; 54: 21; 58: 57 serrata 54: 21; 58: 57 atropurpurea,Ocenebra, see O.interfossa a. atropurpurea, Tritonalia, see T.interfossa a. attenuata, Bythinella 42: 55 attenuata, Lithophaga 48: 4; 60: 89 attenuata, Lymnaea 58: 139 attenuata. Sella 48: 4 attenuatum, Blttium (Lirobittium) 37: 42 attenuatum, Sphaerium, see S. striatinum a. attenuatus varicosus, Drymaeus 57: 28 attrita, Ochthephila (Discula) 36: 45 attrita contracta, Ochthephila (Discula) 36: 45 attrita nigra, Ochthephila (Discula) 36: 45 attrita, Turbonilla 43: 27 Aturia 44: 140-1 atypica, Streptostyla, see S. nicoleti a. Atys cornuta 36: 121; 52: 120 costulosa 52: 120 cylindrica 52: 120; 60: 56 debilis 52: 120 fordinsulae, see semistriata f. kekele 52: 120 kuhnsi 52: 119 mua, see semistriata m. paralella 60: 56 semistriata 52: 117-20 semistriata fordinsulae 52: 120 semistriata mua 52: 120 auberiana, Potamopyrgus 52: 87 auberiana, Urocoptis, see U. elegans a. auberianum, Chondropoma 40: 89 aubryana, Cipangopaludina, see C. lecythoides a. augusta, Mactra (Mactrotoma) 37: 130: 38: 99 augustae, Chondropoma, see C. fascia a. augustina, Amnicola 58: 6 aulaea, Haliotis 54: 74; 60: 92 Aulacofusus--subgenus of Colus Aulacospira 36: 63 aulicus, Conus 49: 41; 57: 72 aurantia, Cypraea 45: 76; 57: 24 aurantia, Lucina 52: 88-9 aurantia, Mitra 36: 122 aurantia, Olivancillaria, see O. gibbosa a. aurantia, Partula 47: 114 aurantia, Tudora 37: 93 aurantiaca, Annularia 37: 91 aurantiaca, Columbella 36: 18 aurantiaca. Lacuna, see L. unifasciata a, aurantiaca, Macrocallista 37: 129 aurantica, Macrocallista 52: 45 aurantius, Liguus, see L. crenatus a. aurata lignaria, Euglandina 55: 55 aurata, Oliva, see O. oliva a. aurea, Physa 47: 1 aurea, Pilsbryna 42: 91-3 aurea, Succinea 60: 100 aureola, Lucidella 48: 12 aureola montegoensis, Lucidella 48: 13 aureotinctus, Ischnochiton 58: 101 aureus, Somatogyrus 52: 131; 58: 9 auricoma, Cerithium 53: 109, pi. 12; 54: 72 auricoma, Goniobasis 41: 60 auricoma, Pleurodonte 38: 61: 40: 90 auricoma major, Pleurodonte 40: 90 auricoma minor, Pleurodonte 40: 90 auricoma, Thericium 54: 72 -- see also T. moenensis a. auricula, Auriculella 38: 79 Auricula (Microtralia) minuscula 40: 126 auricularia lanuginosa, Gulnaria 52: 59 auricularia. Helix 37: 46 auricularia, Lymnaea 37: 34; 38: 125-6; 39: 71; 41; 41, 94; 43: 144; 44: 143; 45: 141; 46: 101; 49: 68; 50: 134; 55: 18-9, 105-6; 57: 9 auricularia, Margaritana 36: 42 auricularia, Radix 44; 45; 48: 144; 56: 52, 54: 58: 144 auricularis, Polygyra 41: 70 Auriculastrum pellucens 38; 56, 60 auriculata, Area 49: 116, 133-4; 52: 27 auriculata, Area (Scapharca) 39; 82 auriculata, Helix 49: 103 auriculata, Paludina 56: 129 auriculata, Polygyra 38: 61; 41: 70; 49: 109; 52: 23 auriculata, Rivularia 56: 129 Auriculella 47: 60 auricula 38: 79 castanea 37: 3 diaphana 37: 3; 38: 79 auriculoides, Mitra 36: 122 auriformis, Polygyra 40: 16; 51: 106; 55: 97 Aurinia--also as subgenus of Scaphella dubia 51: 38 junonia 56: 13 schmitti 60: 108 torrei 51: 37, pi. 4 Auris 59: 116 aurissciuri 40: 131 aurissciuri lutea 40; 131-2 distorta sublaevis 57: 47 lutea, see aurissciuri 1. melastoma 59; 116 sublaevis, see distorta s Auris Judae, Bulla 37; 46 auriscalpium, Melania 43: 10 aurissciuri, Auris 40: 131 aurissciuri lutea, Auris 40: 131-2 aurita, Pachymelania 41: 57 auritula, Pisania (Tritonidea) 49: 139; 50: 20 aurora, Chondropoma 48: 66 aurora, Conus 41: 43-4 aurora, Macoma 37: 129 aurotinctus, Tegula (Omphalius) 37: 43 austeni, Camptoceras 44: 80 112 THE NAUTILUS Balea austeni, Megaustenia 43: 52 austini, Leda 49: 13 australianus, Permochiton 41: 105 australis, Batillaria 56: 28 australis, Helix, see H. alternata a. australis, Onchidella 51:86 australis, Philomycus 38: 80 australis, Scala 51: 6 Austrobalea 38: 6 africana 38: 6 Austrocypraea pyrulata 40: 18 Austroselenites 38: 88; 54: 130, 134 (Zophos) alticola 54: 135, 136, pi. 9 (Zophos) concolor 54: 132-3, 135-6, pi, paucispira 54: 134 Austrotrophon 45: 66 Autochiton 39: 36 Autocoptis 52: 16 -- also as subgenus of Urocoptis Avacus haemastoma monochroa 44: 100 avalonensis, Oreohelix (Radiocentrum) 44: 73 avara, Anachis 35: 88; 53: 21; 58: 61; 60:75 avara similis, Anachis 35: 32; 56: 143 avara translirata, Anachis 58: 61 avara, Columbella 35: 88; 39: 85 avara similis, Columbella (Anachis) 38: 50 avara, Polygyra 41: 52; 52: 23 avara, Succinea 36: 25, 36; 37: 66, 79, 106- 38: 11, 42, 65, 93, 130; 40: 48, 55, 59 114, 119; 41: 20, 142; 42: 16, 59, 125: 43: 42-4, 55, 59-60, 68, 82, 119, 133; 44: 17, 45, 74, 88; 45: 116; 48: 57, 116; 49: 6; 50: 13-4; 51: 63, 106; 52: 15, 96; 53: 87; 54: 19, 32, 117; 55: 143; 56: 54, 62; 58: 78; 59: 28 avara major, Succinea 48: 57 avawatzica, Sonorelix 58: 72 avellana, Amphibola 45: 106 avellana, AmpuUacera 45: 106 avena, Marginella (Volvaria) 39: 85 avenum, Diplopoma 48: 63 Averellia 56: 40, 82, 84 (Trichodiscina) coactiliata 44: 81 cordovana 56: 87 (Trichodiscina) cordovana 41: 144 sumichrasti 36: 36 avernalis, Fluminicola 48: 92-3; 50: 42; 53: 124; 54: 117-8 avernalis carinifera, Fluminicola 48: 93; 50: 42; 53: 124; 54: 117-8 Avicula 49: 83 gregoryi 43: 22, pi. 1 nebulosa 40: 81 pallida 40: 81 avicula, Acanthochitona 37: 43 avicularis, Hyria 49: 83 avicularis, Spondylus 51: 38 aviculoides. Area (Scapharca) 37: 127 avus, Helminthoglypta, see H. cuyamacensis a. axia. Helix 50: 72 axia, Otala 50: 72 ayersiana, Helix 46: 11-2 ayresiana, Helminthoglypta 40: 78-9; 51: 71-2; 52: 24-5 ayresiana lesteri, Helminthoglypta 52: 24 ayresiana sanctaecrucis, Helminthoglypta 40: 78 azona, Oliva, see O. reticulata a. Babella — subgenus of Turbonilla babilonicus, Murex 37: 46 babylonia, Odostomia 46: 118 babylonius, Murex 37: 46 bactricola, Radiodiscus (Radioconus) 43: 9 126-7 Bactrocoptis -- subgenus of Urocoptis bacula, Homalopoma 50: 49 bacula, Leptothyra 37: 43; 43: 28 badia, Helix 51: 26-7 badia guadeloupensis. Helix 51: 27 badia roseolabrum, Helix (Dentellaria) 51: 27 badia unicolor, Helix (Dentellaria) 51: 27-8 badia, Lasmigona (Sulcularia) 36: 83 Badiofaux 55: 70 badium, Sphaerium, see S. striatinum b. baeri, Buccinum 50: 101-2 baeri morchianum, Buccinum 50: 101-2; 59: 103 baetica, Olivella 57: 73, 76 bahamensis, Drvmaens 38: 61 bahamensis, Ooipthosiphon 38: 62; 45: 93 bahamensis providentia, Urocoptis 38: 62 bahiensis, Leila 36: 8 bahlikiana, Anodonta (Euphrata) 55: 20 Baicalia 55: 139 flori 41: 41 baicalensis, Ancylodoris 41: 42 baicalensis, Benedictia 41: 41 baileyi, Bulimulus 44: 81 baileyi, Oreohelix, see O. idahoensis b. baileyi orcutti, Sonorella 51: 33 Bailya 58: 36 anomala 58: 36 bailyi, Acar 45: 127-8, 142; 46: 28 bailyi, Cardita 58: 119; 60: 105 bailyi, Nassa 46: 51; 47: pi. 8 bailyi, Nassarius 52: 45 bainbridgei, Pleurodonte 49: 55 bairdiana, Goniobasis, see G. silicula b. bajet, Ostrea 37: 46 bakerensis, Micrarionta 49: 15 -- see also M. rowelli b. bakeri, Aglaja 38: 143 bakeri, Sphaerium 57: 95 bakeri, Valvata, see V. tricarinata b. balanoides, Balanus 39: 39 balaustina, Tellina 37: 46 balaustrina, Tellina 37: 46 baldwini, Philonesia 37: 3 Balea 50: 18 africana 38: 6 perversa 36: 67 113 Balea INDEX TO balea, Spiratella 47: 55 balesae, Acanthochitona 53: pi. 12 balesi, Asthenothaerus 57: 33 balesi, Euglandina 52: 16; 53: pi. 2 balesi, Oxystyla, see O. ponderosa b. balesi, Pseudomalaxis 59: 9-10, pi. 2 ballista, Helicina 44: 34 balteata, Achatina 48: 34 balthica, Macoma 36: 60, 107; 38: 3, 25, 50; 40: 25, 77; 43: 50; 44: 92; 51: 9; 54: 2; 66: 61, 106, 144; 58: 22, 137-40 baltica, Macoma 41: 15 bandeirana, Achatina 40: 102 banghaasi, Happia 41: 126 Bankia 35: 61; 60: 107 caribbea 60: 108 (Plumulella) cieba 60: 108 (Neobankia) destructa 60: 108 (Plumulella) fosteri 60: 108 hawaiiensis 58: 55 katherinae 60: 108 setacea 38: 25; 43: 51 Bankiella 35: 61 Bankiopsis 60: 108 banksianum, Choanopoma 48: 65 baquieana, Fadyenia 48: 62 baquieana mitchelliana, Fadyenia 48: 62 baquieana sutherlandiana, Fadyenia 48: 62 barbadensis, Fissurella 35: 121; 38: 60; 46: 46, 104 barbadensis, Gastrocopta 37: 33 barbadensis, Mitra 53: 38 barbadensis. Patella 37: 46 barbadensis, Succinea 37: 33; 38: 58, 62; 39: 43 barbarensis, Ocenebra 60: 40 barbarensis, Ocinebra 52: 10 barbarensis, Tritonalia 52: 11; 60: 40 Barbarofusus -- subgenus of Fusinus barbata. Area 38: 60; 49: 64, 116 barbata, Cyclostoma 55: 42 barbata, Japonia 55: 41 Barbatia 45: 127, 142 -- also as subgenus of Area domingensis 45: 128 gradata 45: 128 reticulata 45: 128 barberi, Lymnaea (Pseudosuccinea) 40: 35 barberi, Physa 39: 108 barbigera, Polygyra 46: 59 barbigerum, Stenotrema 55: 8, 97 barbouri, Haliotis 60: 108 barbouri, Liguus, see L. crenatus b barbouri, Urocoptis, see U. livida b. barilensis, Ancylus 37: 12 barilensis, Uncancylus 37: 12 Barleeia 35: 84-5 californica 37: 43 haliotiphila 37: 43; 42: 1; 50: 48 marmorea 35: 85 oldroydi 50: 48 rubra 35: 85 sanjuanensis 51: 104 subtenuis 37: 43; 42: 1, 3 Barnea 56: 143 costata 37: 56; 38: 94; 42: 83; 43: 35; 54: 21; 56: 140-1; 58: 60; 59: 13 pacifica 37: 130 truncata 54: 127; 56: 142; 58: 60 barnesiana, Fusconaia 36: 74 barnesiana bigbyensis, Fusconaia 36: 74 barretti, Pecten 50: 57 barthelowi, Prodallia 56: 12, pi. 2 Bartlettia 55: 93-4 stefanensis 55: 93-4; 57: 51 Bartschella — subgenus of Turbonilla bartschi, Crassispira, see C. tampaensis b. bartschi, Cyclostremiscus 59: 82 Bartschivindex 56: 135-6; 57: 64 basalis, Valvata 35: 24 Basiliochiton 39: 105 heathii 46: 124 lobium 39: 105 Basilitrona controversa 57: 25-6 Isabella 57: 25 Bassethullia 41: 105 basteroti, Terebra 37: 62 basidens. Vertigo, see V. coloradensis b. basileus, Modulus, see M. modulus b. basistriatum, Cerion 57: 34 Batiiyaurinia 60: 108 bathypilula, Cleotrivia 60: 51-2 Batillaria 56: 22, 36 -- also as subgenus of Potamides australis 56: 28 degenerata, see minima d, heteroclytes 56: 28 minima 56: 22-3, 28-30 minima degenerata 56: 23 minima rawsoni 56: 23 rawsoni, see minima r. Batissa 53: 144 batoana, Helicostyla, see H. pithogaster b. bavayi, Placostylus 42: 73, 75 bayacalifornica, Ferrissia 38: 107 bayeri, Chondrula 50: 10 beachi. Teredo 36: 140; 37: 31-2 beali, Mactra 43: 24, pi. 1 beali, Marginella 54: 63 bealiana, Douglassia 56: 15, pi. 3 beardsleana, Geomelania (Scalatella) 48: 88 beata, Kurtzina 58: 108 beattyi, Cerithidea, see C. costata b. beatula, Micrarionta 42: 99, 100 beauforti, Odostomia (Menestho) 35: 99 beaui, Ancylus 37: 13, 16 beaui, Circulus 51: 67 beccarii, Nautilus 37: 46 beckeri, Conus 41: 44-5 beckianum, Opeas 39: 2; 58: 91 beckianum, Synopeas 53: 93; 58: 85, 91 beckii, Lora 38: 25; 51: 122 beckii, Marcia (Liocyma) 58: 99 behri, Polygyra 44: 81 114 THE NAUTILUS Beta Bela 51: 115-8 -- also as subgenus of Mangelia bicarinata 35: 32 decussata 35: 88 exarata 51: 117 harpularia 35: 32 kobelti 51: 116-7 pleurotomaria 35: 32 scalaris 35: 32 viridula 51: 116 belahubbardl, Nenia 35: 93, pi. 2 belcheri, Helix 45: 30 belknapi, Melongena 47: 118 bella, Codakia 60: 56 bella, Cytherea 60: 71 bella, Solariella, see S. varicosa b. Bellacepolis 56: 82, 87 -- also as subgenus of Cepolis Bellamya 56: 124, 126 -- also as subgenus of Viviparus acutecarinata, see quadrata a. aeruginosa 56: 126 boettgeri, see quadrata b. chengtehensis 56: 126 demolita 56: 126 dispiralis, see quadrata d. dissimilis 56: 126 ecarinata, see quadrata e. fantozatiana, see quadrata f. heudei, see quadrata h. lapillorum, see quadrata 1. limnophila 56: 126 lithophaga 56: 126 margaryoides 56: 126 minor, see quadrata m. orientalis, see quadrata o. purificata 56: 126 quadrata 56: 125-6 quadrata acutecarinata 56: 126 quadrata boettgeri 56: 126 quadrata dispiralis 56: 126 quadrata ecarinata 56: 126 quadrata fantozatiana 56: 126 quadrata heudei 56: 126 quadrata lapillorum 56: 126 quadrata minor 56: 126 quadrata orientalis 56: 126 quadrata reevei 56: 126 quadrata turrita 56: 126 reevei, see quadrata r. secernenda 56: 126 smithi 56: 126 turrita, see quadrata t. unicolor 56: 125-6 bellamya, Paludina 56: 126 Bellaspira 54: 52 pentapleura 54: 51 virginiana 54: 52 bellastriata, Semele 49: 119; 58: 59 bellula, Achatinella 38: 79 bellula straminea, Achatinella 38: 79 bellula, Goniobasis 58: 45 Belocaulus 39: 16, 18; 44: 136 sloanei 39: 17; 42: 46; 44: 133-4 beltiana. Pupa 44: 108 beltianus, Pupoides 44: 108 bendalli, Cerion 49: 50 benedictensis, Anodonta, see A. grandis b. Benedictia 41: 41-2; 55: 134, 139 baicalensis 41:41 fragilis 41: 41 bengalensis, Viviparus 55: 115, 118 Benhamina 59: 108 benitoensis, Helminthoglypta 44: 43, pi. 5; 54: 125 bensoni. Teredo 60: 53 Bensonia 52: 33 bensoniana, Wilkinsonaea 48: 14 Bensonies 52: 33 bentonensis, Goniobasis 42: 29-30; 58: 44 bequaerti, Cerion, see C. aguayoi b. bequaerti, Lamellaxis 58: 85, 90 bequaerti, Leptinaria 39: 79, pi. 4 berendti, Agriolimax 37: 28 berendti, Proserpinella 36: 84 berendti, Spiraxis (Pseudosubulina) 53: 11, 14, 94, pi. 3 -- see also S. sulciferus b. berendti, Strebelia 55: 53 Berendtia taylori 46: 110 beringensis, Cuspidaria 38: 24 beringiana, Anodonta 40: 76; 46: 125; 52: 57 Beringius crebricostatus 47: 102; 51: 123 crebricostatus undatus 46: 126 largillierti 39: 135 undatus, see crebricostatus u. berlanderiansis, Bulinus 50: 136 berlandieriana, Praticolella 39: 11; 40: 16; 42: 66; 47: 79 berlandierii, Lampsilis 47: 73 berlandierii, Unio 47: 72 bermudana, Argyrotheca 49: 92 bermudense, Carychium 38: 7 bermudensis, Aclis 56: 17 bermudensis, Carychium 37: 33 bermudensis, Chama, see C. sinuosa b. bermudensis, Poecilozonites 37: 33; 38: 7 bermudensis, Zonitoides 38: 7 bermudezi, Melanella 46: 117, pi. 6 bermudezi, Mecoliotia 49: 92-3, pi. 5 bermudezi, Meioceras 47: 112; 49: 92 bermudezi, Rissoa (Folinia) 51: 35-6 bernadinae, Bunnya 56: 37, pi. 5 bernardi, Carditopsis 60: 7 bernhardi, Nerita 46: 45 berniceia, Helicina 38: 83 berryi, Helminthoglypta 54: 125 berryi, Oreohelix 47: 3 bertini, Sanguinoiaria 49: 140 beryllica, Monadenia, see M. fidelis b. besckei, Helix 41: 126 Besla -- subgenus of Odostomia beta, Ocenebra 60: 39-41, 43, pi. 4 beta, Tritonalia 55: 141 -- see also T. interfossa b. 115 bezoar INDEX TO bezoar, Murex 37: 46 biangulata, Corbula 40: 44 biangulatum, Cardium (Fragum) 37: 41; 46: 109 biangulatus, Pedipes 40: 142 bicarinata, Archachatina 52: 26 bicarinata, Bela 35: 32 bicarinata, Cassis 41: 72 bicarinata, Helisoma 42: 97 bicarinata, Lora 40: 21 bicarinata violacea, Lora 40: 22 bicarinata, Rivularia 56: 129 bicarinata, Scala 51: 7 bicarinata Turritella, see T. uvasana b. bicarinata, Valvata 48: 110; 52: 130-1; 58: 6 bicarinata normalis, Valvata 46: 20 bicarinatus, Circulus 51: 67 bicarinatus, Planorbis 36: 143-4; 40: 79; 42: 56-7; 44: 128; 51: 93 bicarinatus percarinatus, Planorbis 57: 9 bicarinatus portagensis, Planorbis 57: 9 bicaudata, Tomura 59; pi. 2 bicaudata, Vitrinella (Tomura) 60: 14-5, 36 bicolor, Amphissa 50: 47 bicolor, Fusus 47: 118 bicolor, Gulella 39: 1, 31 bicolor, Murex 43: 135; 46: 110, 114; 48: 4; 52: 45; 55: 114 bicolor, Pedalion 38: 61 bicolor, Phyllonotus 57: 4 bicolor, Pittieria 55: 55 Bicorbula 40: 45-6 bidens, Clausilia 36: 31; 41: 108; 59: 118 bidens, Monacha 50: 134 bidens. Volvulus 41: 108 bidentata, Clausilia 36: 67; 41: 94 bidentata, Cylichnella 58: 62 bidentata. Helix 40: 68 bidentata, Leucopepla 40: 126 bidentata, Proserpina 47: 151; 48: 63 bidentata, Voluta 40: 125 bidentatus, Melampus 35: 88; 38: 61; 40: 126; 41: 14-5; 56: 58; 58: 20, 62, 137-8 bifasciata, Leptaxis, see L. chrysomela b. Bifidaria 36: 63 Biforina -- also as subgenus of Trifora cingulifera 36: 121 corrugata 36: 121 decorata 36: 121 flammulata 36: 121 bifrons, Janulus 60: 95-7, pi. 7 bifrons, Omalaxis 48: 128 Bifrontia zanclaea 48: 129; 59: 9 bifurcata, Paphia 52: 139 bifurcata, Siphonaria 59: 108 bifurcatus, Septifer 37: 41; 56: 31, 43 biggsi, Cyclotus 50: 9 bighopensis, Schizothaerus, see S. nuttallii b. bilabiata, Truncatella 37: 66-9; 38: 62; 41: 52; 56: 34 bilabiatum, Ctenopoma 40: 89 bilamellata. Helix 47: 61 bilamellata, Onchidoris 56: 58 bilineata, Melanella 52: 28 bilineatum, Buccinum 52: 77 bilineatus, Philomycus 38: 80 bilirata, Kennerlia 38: 24; 51: 101 bilobata, Aporrhais, see A. pespelecani b. bilobata, Nassa (Phrontis) 58: 100 bimaculatus, Heterodonax 36: 34; 49: 119 bimaculatus, Megatebennus 37: 43; 50: 49 biminiense, Cerion 56: 36 binghami, Bostryx 57: 122 binneyana, Polita 35: 36; 37: 132; 38: 124; 40: 54; 41: 20 binneyana, Polygyra 40: 3 binneyana, Retinella 43: 142; 44: 104; 45: 34; 46: 128; 48: 47; 50: 116; 53: 85; 58: 127-8 binneyana occidentalis, Retinella 50: 87; 53: 133 binneyana, Vitrea 40: 77 binneyanus, Mesodon 54: 109 binneyi, Helisoma 47: 87-91, 140, 142 binneyi, Lymnaea 41: 24; 44:76; 47: 2-3, 122 binneyi, Planorbis 39: 119-20; 41: 76; 43: 83; 44: 110 -- see also P. trivolvis b. binneyi, Pomatiopsis 50; 85 binneyi, Stagnicola 39: 120; 42: 122 binneyi, Vorticifex 47: 27 binominata, Helix 37: 135 Biomphalaria pfeifferi 58: 146 bipartita, Thersites 41: 102 biplicata, Olivella 36: 34; 37: 41; 43: 109; 44: 93; 48: 75; 50: 47; 53: 22; 55: 10, 66, 93; 56: 43-5; 57: 73-7, 79; 60: 81-2 biplicata angelina, Olivella 57: 75-6 biplicata fucana, Olivella 57: 75-6 biplicata lapillus, Olivella 55: 11 biplicata parva, Olivella 57: 75-6 biplicatula, Varicella 49: 26 biplicatula dissimilis. Varicella 49: 26; 55: 26 birgei, Anodontoides 36: 123-5 Birgella 40: 140 birmanicum, Megaustenia 43: 52 birmanicus, Vaginulus 42: 47 biscaynense, Teinostoma 59: 3, 5, pi. 1 bisecta, Thyasira 41: 129-31; 50: 91 bisecta, Venus 41: 130 bisectus, Cryptodon 41: 130 biserialis, Thais 37: 121, 124; 43: 137; 46: 45: 52: 46 bispinosa, Melongena, see M. corona b. bisulcata, Area 60: 19 bisulcata, Lithophaga 54: 40; 58: 57 bisulcatum, Solarium 54: 106 bisuturalis, Odostomia (Menestho) 38: 50; 52: 29; 56: 143 bitaeniata, Melania 41: 58 bitaeniata, Strephobasis 41: 58 116 THE NAUTILUS Boriquenae Bithynia 40: 107; 42: 106; 46: 137; 52: 59 leachi inflata 52: 59 robusta minor 52: 58-9 tentaculata 40: 69, 100; 44: 46; 46: 2, 69, 141 bitinctus, Donax 40: 53 bitruncata, Panopea 35: 99; 42: 85; 49: 104, 133; 58: 59 Bittium 36: 27-8, 34; 38: 51 alternatum 56: 143 armillatum 44: 93 (Lirobittiuni) attenuatum 37: 42 boeticum unilineatum 36: 121 eschrichtii 53: 22 (Stylidium) eschrichtii montereyense 50: 48 (Lirobittium) interfossa 37: 42 montereyense, see eschrichtii m. rugatum 53: 22 unilineatum, see boeticum u. (Semibittium) vancouverense 38: 26; 51: 103 varium 37: 54; 58: 61 bituberculatus, Strombus 35: 120-1; 38: 62; 50: 140; 55: 108; 56: 18-9 Bivalvia 39: 36 bivaricosus, Placostylus 42: 77 Bivetopsis -- subgenus of Cancellaria Bivonia compacta 50: 48 decussata 46: 119 bizonalis, Oliva, see O. carneola b. blaini, Annularia 40: 88 blainianus, Liguus 45: 100; 48: 124; 52: 47 blainianus jaumei, Liguus 45: 98-100 blainianus pilsbryi, Liguus 48: 123-4, pL 7 blainvilleana, Leila 45: 56 blainvilliana, Anodonta 36: 8 blainvillei, Helix (Papuina) 57: 66 blainvillei, Papuina 57: 65 blainvillei, Placiphorella 46: 44 blakeana, Lucina 49: 87 blakei, Vitrinella 57: 97, pi. 9 blanchetiana, Poteria 56: 137 blanchetianum, Aperostoma 56: 138; 57: 64 blanchetianum, Cyclostoma 56: 137 blandi, Physa 47: 2 blandi heilprini, Poecilozonites 38: 7; 48: 34 blandi, Pupilla 37: 79; 38: 65; 44: 114; 54: 29-31. 96, 116-7; 55: 143-4; 56: 53 blandi, Spiraxis 53: 11 Blandia 48: 14 -- also as subgenus of Fadyenia hilliana 48: 14 blandiana, Cyane 36: 84 blandiana, Fadyenia 48: 14 blandiana, Varicella 49: 22, 26; 55: 26-7 blandiana subaequa, Varicella (Varicellula) 49: 22, 26 blandianum, Choanopoma, see C. lima b. Blandiella 50: 139 blanesi, Olivella 52: 29 Blanfordia formosana 39: 7 Blarina brevicauda talpoides 39: 28 blatchleyi, Lymnaea 40: 60 bleekerii, Veronicella 39: 15; 44: 137 bodegensis, Tellina 43: 50; 44: 92 boetica, Olivella 36: 34; 38: 25; 57: 73, 76 boeticum, Bittium 36: 121 boeticum unilineatum, Bittium 36: 121 boeticus, Acanthochiton 58: 102 boettgeri, Bellamya, see B. quadrata b, boettgeri, Mekongia 56: 129 boettgeri, Nenia, see N. quadrata b. Boettgerilla 48: 143 boggsi, Dentalium 40: 19-20 bohemica, Praeostrea 57: 90 bollesiana, Vertigo 48: 59 bollingi, Oliva, see O. reticularis b. bolivari, Episcynia 60: 11-2, pi. 1 bolivari, Mycetopoda 39: 116 bolivarii, Drymaeus 58: 30 bombix, Litiopa 55: 128-30 bombyx, Litiopa 55: 128-9 Bombyxinus 58: 70 Bonairea 39: 106 bonairensis arubanus, Microceramus 40: 143 bonairensis curacoanus, Microceramus 39: 42 bondi, Poteria (Crocidopoma) 49: 98 bondi, Sagda 49: 98, pi. 7 bonellii, Vitrina 42: 138-9 bonita, Calliostoma 47: 145 bonplandi, Cepolis 38: 59-60; 40: 88; 56: 82 booneae, Chondropoma, see C. textum b. boothiana, Hyalosagda 49: 52 boothiana, Thysanophora 40: 90 borbonica, Julia 57: 86 borbonica, Physa 43: 92 borealis, Anaplocamus 56: 49-50 borealis, Arctonchis 50: 47 borealis, Astarte 40: 24 borealis sericea, Astarte 40: 24 borealis St. Johnensis, Cardita 60: 70 borealis, Pecten see P. concentricus b. and P. gibbus b. borealis, Planorbis 52: 59 borealis dershavini, Planorbis 52: 59 borealis, Onchidella 51: 87 borealis, Scalaria 51: 4 borealis, Solemya 56: 59 borealis, Spiraxis 52: 133; 53: 94 borealis, Trichotropis 39: 133 borealis St. Johnensis, Trichotropis 60: 70 borealis, Venericardia 36: 60; 40: 24; 56: 60, 142 borelliana, Vaginula 39: 15-6 Boreotrophon 45: 66; 54: 125-6 -- also as subgenus of Trophon Boriquena 55: 26, 55 -- also as subgenus of Laevaricella boriquenae, Cepolis 56: pi. 9 boriquenae, Cepolis (Levicepolis) 56: 88 117 Boriquenae INDEX TO boriquenae, Cepolis (Plagioptycha) 53: 107 boriqueni, Cepolis 56: 82 bormanni, Epitonium, see E. tinctum b. bornii, Pecten 50: 25 borregoensis, Micrarionta (Eremarionta) 43: 39; 58: 72 Borsonella pinosensis 58: 108 Borus 39: 77 -- also as subgenus of Bulinus capillaceus 39: 78 intertextus 39: 78 lorentzianus 39: 77-8, pi. 4; see also oblongus 1. oblongus 39: 77-8 oblongus lorentzianus 39: 77 Bostryx 41: 96; 57: 120 abancayensis 57: 123 acromelas 57: 124 (Peronaeus) anomphalus 57: 123 ascendens, see derelictus a. binghami 57: 122 cuspidatus 57: 124 derelictus 57: 123 derelictus ascendens 57: 123 (Phenacotaxus) endoplax 57: 124 endoptyx 57: 125 eremothauma 57: 87-8 huarazensis 57: 121 megomphalus 57: 122-3 (Geoceras) multivolvis 57: 124 ptyalum 57: 122 tumidulus 57: 122 weyrauchi 57: 87, pi. 9 (Platybostryx) weyrauchi 57: 121 botanicum, Umbraculum 38: 34 Bothriopupa 36: 63 tenuidens 48: 88; 57: 48 Bothrocorbula 40: 45, 47 viminea 40: 47 bottae, Crassispira 46: 111, 144 botteriana, Euglandina 55: 54 bottimeri, Paludestrina 39: 8 bottimeri, Physa 38: 12 Botula californiensis 43: 50 falcata 43: 50; 60: 89 fusca 49: 117; 54: 40 boucardi, Cyclostoma 36: 15 boucardi, Oxystyla 44: 82, pi. 3 bourailensis, Placostylus, see P. fibratus b. Bourciera 39: 142 bourgeoisae, Coelocentrum 53: pi. 7; 56; pi. 7 bourgeoisae, Coelocentrum (Ptvcho- centrum) 53: 27; 56: 91, 114 bourgeoisae, Drymaeus 57: 28, pi. 6 bowersi, Epiphragmophora 50: 123 boykiniana, Amblema 38: 105; 49: 81 boykiniana, Melania 42: 29-30 Boysidia 36: 63-4 Brachidontes 56: 31-2 granulatus 56: 32 multiformis 56: 32 (Hormomya) multiformis 56: 31 Brachydontes -- subgenus of Modiolus brachyphallus, Ariolimax, see A. californicus b. Brachypodella 40: 70; 49: 142 agnesiana 41: 94 alba 49: 58 alba eos 49: 53 alba minima 49: 58 alba striata 49: 58 alba striatula 49: 58 caymanensis 56: 5 (Apoma) chemnitziana 49: 58 costulata 49: 58 (Geoscala) costulata 48: 139 costulata savlamari 48: pi. 8; 49: 58, 139 eos, see alba e. gracilis 49: 58 (Simplicervix) inornata 49: 58 leucopleura 40: 143 minima, see alba m. occidentalis 49: 58 (Mychostoma) pearmanaeana 49: 58 raveni 39: 42; 41: 94 raveni sanctabarbarae 39: 42 robertsi 48: 139; 49: 58 sanctabarbarae, see raveni s. savlamari, see costulata s. (Geoscala) seminuda 49: 58 striata, see alba s. striatula, see alba s. Brachysphingus gabbi 40: 144 bracteatus, Cymatium 36: 121 bracteatus, Maculotriton 58: 122 bradina, Peruinia, see P. flachi b. Bradybaena similaris hongkongiensis 53: 105 branneri, Cerithium 43: 25 Brannerillus involutus 48: 16 involutus praeposterus 48: 16 brasiliana, Anomalocardia 39: 84; 60: 19 brasiliana, Area, see A. incongrua b. brasilicum, Coecum 46: 121 brasiliensis, Iphigenia 60: 19 brasiliensis, Microhappia 41: 125 brasiliensis, Veronicella 41: 129 brassica, Murex 52: 45 braueri, Vaginula 39: 14; 44: 136 braziliana, Iphigenia 38: 60 brevicauda talpoides, Blarina 39: 28 brevicaudata, Turris 36: 123 brevicaudatus, Latirus 53: 110 brevicula, Leptachatina 38: 83 brevicula micra, Leptachatina 38: 83 brevidens, Monoceros 38: 19 brevidentata, Acanthina 37: 124; 46: 44-5 brevidentatum, Monoceros 38: 19 brevifrons, Macoma (Cydippina) 39: 84; 52: 28 brevifrons, Tellina 51: 94 brevior, Hyalosagda, see H. perdepressa b. brevipila, Polygyra 46: 17 brevirostris, Perissolax 40: 144 brevis, Cylindrites 40: 144 118 THE NAUTILUS Buccinum brevis, Goniobasis 41: 58; 58: 46 brevis, lo 38: 141-2 brevis, Melania 41: 58 brevis, Pisidium, see P. variabile b. brevis, Saxidomus, see S. giganteus b. brevis, Urocoptis 49: 57 brevis abbreviata, Urocoptis 49: 57 brevis columna, Urocoptis 49: 57 brevis obesa, Urocoptis 49: 57 brevisiphonatus, Saxidomus 37: 26 brevispina, Astraea 52: 27 brevispina, Neritina 49: 79 brevispira, Anculosa 58: 42 brevispira, Melania 55: 119 bridgerensis, Physa 50: 128 bridgesi, Anodontites 38: 54 bristolae, Liotia, see L. acuticostata b. bristoli, Punctum 38: 7 brochonianum, Musculium 40: 29 broderipi, Chama 47: 85 broderipiana, Natica 37: 125 broggi, Anomalocardia 56: 78-9, pi. 8 brongniartii, Cerithium 56: 23 bronni, Choanopoma 48: 61, 65 bronnii fuscolineatum, Choanopoma 48: 65 brooksi. Discus, see D. patulus b. brooksi, Fossaria, see F. obrussa b. Brotia 53: 36 asperata 49: 74, 77-9 browneana, Pleurodonte, see P. tridentata b. browni, Sphaerium 57: 95 browniana laevissima, Rissoina 46: 119 brownii, Alcadia (Palliata) 48: 12 brownii labiosa, Alcadia (Palliata) 48: 12 brownii palliata, Alcadia (Palliata) 48: 12 brumbyi, Pleurocera 40: 9, 11 brumeriensis, Papuina 50: 53 brujensis, Thais, see T. coronata b. brunnea, Acanthodoris 39: 50, 53, 60, 101, pi. 2 brunnea, Polygyra, see P. townsendiana b. brunnea, Megalomastoma 36: 14 brunnea, Micrarionta 49: 15: 59: 103 brunnea, Psephidea 43: 50 brunnea, Siphonaria 38: 61; 46: 104 brunnea, Tegula (Chlorostoma) 44: 93; 50; 49 brunneostoma, Nassa 46: 52 brunneus, Pecten 38: 112 bryani, Ostrea 49: 103: 50: 88 bryanti, Cingula 39: 132 bryanti. Discus 52: 14 bryanti nigromontanus. Discus 52: 14; 55: 21 bryanti tuberculata. Discus 52: pi. 2 bryanti tuberculatus, Discus 52: 14 Ijryantwalkeri, Nenia 35: 95, pi. 2 bryantwalkeri, Stagnicola, see S, emarginata b. bryonia, Pterocera 55: 2 bryophila. Helix 35: 49 Buccinum 44: 66; 54: 4; 60: 27 acicula 44: 140 albumen 37: 45 angulosum 51: 123 angulosum transliratum 51: 125 baeri 50: 101-2 baeri morchianum 50: 101-2; 59: 103 bilineatum 52: 77 castaneum triplostephanum 51; 124 cicatricosum 37: 47; 52: 75 cinereum 35: 88 cornutum 37: 47 crenulatum 37: 47 cretaceum 39: 135 cyaneum 39: 134 donovani 39: 134 duplicatum 37: 47 fasciatum 37: 48 flammeu 37: 48 flammeum 37: 48 frameum 37: 48 gibbum 52: 74 glaciate 37: 48; 50: 101-2 glaciale morchianum 50: 102 glaciate parallelum 50: 101-2 granulatum 37: 48; 52: 76 groenlandicum 39: 134 hecticu 37: 48 hecticum 37: 48 humphreysianum 39: 134 inflatum 52: 75 lanceatum 37: 49 leptocaryon 37: 49 leucozonum 42: 40 morchianum 38: 28 see also baeri m. and glaciale m. neriteum 37: 49 olearium 37: 50 parallelum, see glaciale p. patuUum 37: 50 patulum 37: 50 praemorsum 37: 50 prismaticum 43: 72 recurvirostrum 52: 75 rusticulum 37: 51 sinuatum 57: 115 spinosum 37: 51 striatum 37: 51 see also undatum s. strigatum 37: 51 strigilatum 37: 51 subulatum 37: 51 tenue 39: 134 testudo 52: 77 tottenii 40: 25 tottenis 39: 134 transliratum, see angulosum t. trifasciatunr52: 77 triplostephanum, see castaneum t. tuberosum 37: 51 turris 37: 51 undatum 35: 30, 32-3, 87, pi. 1; 39: 38, 134: 41: 14; 42: 39; 56: 59, 141; 57: 67 119 Buccinum INDEX TO undatum striatum 39: 134 undulatum 52: 77 unicum 47: 93 virgineum 37: 52 viridum 47: 93 zebra 59: 29-31; 60: 106-7 bucculenta, Mesodon, see M. thyroidus b. bucculenta, Polygyra, see P. thyroidus b. bucephala, Melibe 35: 50 Buchanaania 51: 86, 88 Buchanania 51: 86, 88 onchidioides 51: 86 buchanensis, Anodontoides 36: 125 -- see also A. ferussacianus b. buchanensis, Menetus, see M. dilatatus b. Buchannia 51: 86 onchidioides 51: 86 buckleyi, Unio 41: 54 buddiana, Chama 47: 47, 81; 52: 44 buddianum, Zaphysema 49: 54 bulbosa, Goniobasis 48: 95; 49: 66 bulbiformis, Fusus 44: 138 bulbiformis, Leiostoma 44: 138 bulbiformis, Purpura 40: 81 Buckleyia 36: 15 Buliminus obscurus 44: 71 Bulimnea — also as subgenus of Lymnaea megasoma 42: 97; 48: 109; 52: 106-7 bulimoides obliqua, Achatinella 43: 130-1 bulimoides, Goniobasis 48: 95 bulimoides, Lymnaea 41: 119 bulimoides, Lymnaea (Galba) 45: 35, 140; 54: 128, 130 bulimoides cassi, Lymnaea 48: 33 bulimoides cassi, Lymnaea (Stagnicola) 54: 30, 32 bulimoides cockerelli, Lymnaea 37: 81 bulimoides cockerelli, Lymnaea (Stagnicola) 45: 140; 53: 78 bulimoides techella, Lymnaea (Galba) 45: 35 bulimoides, Partula 50: 53 bulimoides, Spiratella 47: 55 bulimoides, Stagnicola 52: 144 bulimoides cassi, Stagnicola 54: 117 bulimoides techella, Stagnicola 50: 14; 54: 117; 55: 143 bulimoides vancouverensis, Stagnicola 52: 144; 53, pi. 7 Bulimulus 37: 107; 38: 38-9, 41; 39: 24, 77; 46: 49, 110, 114; 47: 4; 49: 105; 53: 69^ 112, 114; 55: 32; 57: 98, 120 alternatus 57: 98-9 alternatus hesperius 38: 37-41 alternatus mariae 38: 40-1; 42: 66; 47: 16; 49: 105, pi. 7; 55: 32-3; 57: 98-9 baileyi 44: 81 carmen 46: 50 catlowiae 53: 111, 115 -- see also irregularis c. corneus 60: 104 dealbatus 47: 4-6; 51: 18; 52: 115; 57: 98 (Orthotomium) dealbatus 57: 99 dealbatus jonesi 51: 19, pi. 3 dealbatus liquabilis 42: 66; 57: 98-9, pi. 9 dealbatus mooreanus 39: 12; 40: 16; 47: 16, 79; 57: 98-9, pi. 9 dealbatus ozarkensis 47: 4; 57: 98 dealbatus patriarchus 57: 98 dealbatus pecosensis 38: 39, 41 dealbatus ragsdalei 38: 41; 57: 98-9 dealbatus schiedeanus 57: 98, pi. 9 dentifer 46: 110 exilis 35: 119, 121 (Scutalus) felipponei 41: 95-6; 44: 33, 100 guadalupensis 49: 56 hannai 46: 74 hendersoni 44: 100 hesperius, see alternatus h. inscendens 39: 25 irregularis 41: 96; 53: 115 irregularis catlowiae 53: 113 johnsoni 46: 109 jonesi, see dealbatus j. lamellifer 46: 49-50, 110 liquabilis, see dealbatus 1. mariae, see alternatus m. montezuma 46: 50 mooreanus, see dealbatus m. nigromontanus 40: 5 ozarkensis, see dealbatus o. patriarchus, see dealbatus p. pecosensis, see dealbatus p. peristomatus 41: 95 pilsbryi 39: 25 ragsdalei, see dealbatus r. sanmarcosensis 46: 49 santacruzensis 46: 109 schiedeanus, see dealbatus s. sepulchralis 38: 58, 60 slevini 46: 50, 109 sufflatus 46: 75 tenuissimus 39: 2, 4, 108 ximenez 46: 50-1, 110 Bulimus 37: 88; 39: 28; 43: 136: 46: 71; 53: 112; 54: 66; 59: 120; 60: 106-7 artemisia 50: 135 carinatus 46: 38 catlowiae 53: 112 citrinus 37: 84-5, 88 (?Borus) coxi 46: 68-9 dentatus 60: 57 exesus 60: 57 grayanus 60: 57 guadalupensis 36: 32 hauxwelli 58: 30 haydeniana 44: 33 ianeirensis 60: 57 inscendens 50: 135 irregularis 53: 112 limnaeformis 44: 33 metaformis 46: 71 (Strophochilus) oblongus 49: 36 odontostomus 60: 57-8 120 THE NAUTILUS Button! pantagruelensis 60: 57 pantagruelinus 60: 57 patriarcha 50: 99 pilula 50: 135 pilsbryi 39: 25 procerus 48: 85 punctatissimus 60: 57 pupoides 60: 57 quitensis 53: 111-3 ringens 60: 57 rucifex 40: 102 sexdentatus 60: 57 tentaculatus 46: 141; 52: 61 vermicula 44: 33 virescens 37: 85-6, 88 wagneri 60: 57 Xantusi 50: 135 zebra 59: 29-30, 118; 60: 106 Bulina 59: 120 canaliculata 51: 49 Bulinus 41: 141; 42: 106; 43: 92-3; 44: 80, 142; 48: 33; 51: 144; 59: 120 (Ameria) aliciae 40: 121-2 berlanderiansis 50: 136 cernicus 43: 92 forskalii cernicus 43: 93 hirasei 40: 121-2; 44: 80 tropicus 41: 142; 52: 142; 57: 53; 60: 35 Bulla 44: 98 achatina 59: 117 ampullacea 37: 46 Auris Judae 37 : 46 elegans 46: 116 fasciata 42: 141 folliculum 37: 48 gouldiana 52: 44 gracilis 35: 46 lunulata 37: 49 occidentalis 54: 20 pallida 37: 50 palmea 37: 50 physis 37: 50 punctata 52: 44 rivalis 44: 106 vernicosa 60: 56 virescens 46: 140 BuUaria amygdalis 38: 60 aspersa 37: 122 gouldiana 36: 34; 37: 41 media 38: 60 occidentalis 37: 55; 38: 60, 84 striata 38: 60; 39: 84 buUata, Acteocina 46: 116 bullata, Euglandina. seeE. rosea b. bullata, Opalia 58: 100 bullata, Physa 49: 30, 85 bullata, Tornatella 46: 116 bullatus, Conus 37: 46 buUoides, Detracia 38: 61 buUoides, Melampus 37: 53-4 bullula, Goniobasis 58: 45 Bunnya 56: 37, 40, 82 bernadinae 56: 37, pi. 5 burchardi, Marginella 60: 62 burchi, Nuculana 59: 104 burchi, Turbonilla (Pyrgiscus) 52: 49, pi. 4 Burchia 57: 115 clionella 57: 116 redondoensis 57: 116 burkei, Quincuncina 36: 1-3, pi. 1 burnetti, Pecten 50: 26 burnupi, Gundlachia 40: 105 Burnupia 38: 66 caffra 37: 9; 40: 105 capensis 45: 136 capensis striatissima 45: 136 obtusata 40: 105 burnupianus, Fauxulus 41: 108 burringtoni, Glyphyalinia 41: 83 burringtoni, Retinella 49: 100; 52: 95 Bursa 37: 124 affinis 55: 2; 60: 55 albifasciata 52: 44 californica 37: 42 callata 45: 78 rugosa 37: 124 (Marsupina) spadicea 54: 71 bursatella. Helix 46: 70 burwashi, Turritella 41; 36 buschii, Astraea (Uvanilla) 37: 126 bushi, Cyclostrema 59: 72 Busycon 39: 39; 40: 138; 52: 16-20, 89- 91; 53: 24-6; 56: 107-8; 57: 67 adversarium 53: 26 canaliculatum 35; 33; 38: 51; 41: 10, 15; 52: 17; 53: 143; 57: 67; 58: 62 carica 35: 33, 136; 36: 10; 38: 51; 39: 38; 52: 16-7, 19-20; 53: 26; 56: 141; 57: 143; 58: 62 carica eliceans 44: 30 caricum 41: 10, 15 cingulatum 52: 17 contrarium 53: 26; 58: 62 -- see also perversum c. dubium 52: 17 eliceans 35: 136; 52: 19; 53: 24-6 -- see also carica e. inversum 52: 17 kieneri 53; 24-6 -- see also perversum k. maximum tritonis 36: 10-1 muricatum 52: 16-7 obrapum 36: 11 -- see also perversum o. perversum 35: 34; 36: 10; 37; 53-4; 38: 2, 93; 39: 85; 40: 100, 138; 41: 14; 44: 30; 52: 17; 53: 23-26: 54: 20, 128; 57: 143-4; 60: 34 perversum contrarium 36: 10, 11 perversum kieneri 53: 24 perversum obrapum 36: 10 pyrum 37: 54; 39: 85; 52: 89-91. pi. 7: 54: 20; 58: 62 tritonis, see maximum t. buttoni, Epiphragmophora, seeE. mormonum b. buttoni, Galba, seeG. proxima b. 121 Buttoni INDEX TO buttoni, Stagnicola, see S. palustris b. and S. proxima b. buttoni, Tellina (Oudardia) 37: 41; 44: 92 byersi, Physa, see P. gyrina b. Byssoarca pernoides 46: 28 pusilla 45: 128 solida 46: 29 Bythinella aldrichi 53: 118-20 attenuata 42: 55 nickliniana 42: 55 protea 59: 19 seemani 59: 19 uzielliana 50: 10 Bythinia 54: 8 tentaculata 50: 134; 53: 103; 54: 6, 8; 59: 110 cabocruzense, Cerion 57: 34-5 cabritii, Murex 54: 45 cabrittii, Murex 56: 13 cacao, Unio 36: 73 caddoensis, Polygyra (Stenotrema) 49: 19; 50: 143 caduca, Succinea 37: 3; 38: 80 caducus, Spiraxis (Pseudosubulina) 52: 133; 53: 94, pi. 4 Cadulus 58: 60 hepburni 38: 25; 51: 101 nesiotes 36: 34 panamensis 55: 121-2 caeca, Lepeta 39: 131; 54: 3 Caecilioides 40: 64 caecoides, Lepeta 38: 27 Caecum 36: 34; 39: 66; 49: 92 -- see also Coecum californicum 37: 42 carmenense 52: 27 carolinianum 46: 122 cayosense 57: 32 constrictum 47: 112 cooperi 58: 61 dalli 37: 42 firmatum 55: 121 floridanum 39: 66 formosulum 46: 122 glabrum 46: 122; 49: 92 heptagonum 60: 104 hexagonum 60; 104 (Meioceras) lermondi 38: 7 patuxentium 38: 66-7 pulchellum 39: 66; 58: 61 sculptum 57: 32 caelata, Astraea 53: 38 caelata, Chemnitzia 39: 144 caelata, Helminthoglypta, see H. traski c. caelata, Ranella 45: 82 caelata, Parthenia 39: 144 caelata, Turbonilla 39: 144 caelatior, Turbonilla (Babella) 39: 144 caelatum, Haplotrema 54: pi. 9 caelatum, Haplotrema (Greggiella) 54: 131 caelatura 47: 75 caelatura, Goniobasis 50: 107; 58: 44-5 caeliaxis 50: 18 caerulans^ Urocoptis 40: 74, 90 caerulea, Oliva 42: 10 caerulescens, Cerion 49: 50 caeruleum, Calliostoma, see C . costatum c. Caestocorbula 40: 44-5 caestus, Vasum 37: 123; 45: 77; 52: 46 caffer, Conus 41: 44-5 caffer, Unio (Cafferia) 47: 77 caffer natalensis, Unio (Cafferia) 47: 77 Cafferia -- subgenus of Unio caffra, Burnupia 37: 9; 40: 105 caffra, Melampus 60: 56 cahawbensis, Goniobasis 54: 9; 58: 44 cahni, Helisoma, see H. antrosa c. cala, Epiphragmophora, see E. mormonum c. cala, Tellina (Phyllodina) 51: 66 Calachatina 52: 26 calamitarum, EUiptio 35: 26 calathus, Helix 60: 95 calathus, Janulus 60: 97 calcarata, Rivularia 56: 129 calcarea. Helix 35: 39, 100 calcarea, Macoma 35: 32; 40: 25; 51: 9; 54: 3 calceola, Alasmidonta 36: 98: 41: 92 calceolus, Alasmidonta 40: 105 calcifer, Spondylus 52: 46 calderoni, Varicella (Vagavarix) 55: 27 calidimaris, Parviturbo 59: 56 californianus, Mytilus 37: 41; 38: 24; 41: 99, 101; 42: 100; 43: 50; 47: 102; 53: 22; 54: 91; 56: 30-2 californianus, Tagelus 36: 33; 37: 41; 53: 108 californica, Admete 51: 101 californica, Aplysia 36: 94, 96; 48: 43 californica, Assiminea 36: 18 californica, Barleeia 37: 43 californica. Bursa 37: 42 californica, Cerithidea 36: 34; 45: pl- H; 56: 27-8 californica hyporhyssa, Cerithidea 56: 27 californica, Cingula 50: 48 californica, Cryptomya 36: 34; 37: 41, 130; 38: 27; 43: 50; 44: 92; 56: 43 californica, Cypricardia (Trapezium) 40: 81 californica, Dolabella 46: 75 californica, Echinochama 47: 85; 51: 79 californica, Epilucina 53: 22 californica, Gundlachia 41: 141 californica, Hyalina 36: 34 californica, Mactra (Mactrotoma) 37: 130; 38: 98-101 californica, Marginella (Hyalina) 37: 41; 47: 47 californica, Nuttallina 47: 53 californica, Ostrea 41: 45-7 -- see also O. virginica c. californica, Parapholas 44: 92; 51: 101; 56: 42 122 THE NAUTILUS Campechiensis californica, Pedicularia 59: 124 californica, Perna 40: 81-2, 135 californica, Phacoides (Callucina) 37: 41; 51: 100 californica, Philine 59: 104 californica, Pholadidea 44: 91; 60: 89 californica, Pholas 40: 81 californica, Pirena 56: 27 californica, Pomatiopsis 50: 84 californica, Standella 38: 99, 101 californica, Tegula 47: 47 californica, Trivia 50: 48 californica, Vaivata, see V. humeralis c. californicum. Caecum 37: 42 californicum, Cerithium (Potamis) 56: 27 Calipyrgula 48: 15 carinifer 48: 15 ellipsostoma 48: 15 Callina 36: 108 -- also as subgenus of Ochthephila Calliostoma 37: 34; 52: 27; 53: 53; 56: 15 bonita 47: 145 caeruleum, see costatum c. canaliculatum 37: 35; 50: 49 canaliculatum nebulosum 37: 35 canaliculatum parvum 37: 35 costatum 50: 49; 51: 103 costatum caeruleum 50: 49 costatum pictum 50: 49 eximium 52: 44 fascinans 56: 15, pi. 6 (Eutrochus) faustum 56: 14, pi. 6 fonkii 37: 126 herdersoni 40: 140; 56: 15 jujubinum 53: 39; 58: 60 jujubinum rawsoni 58: 38 lima 52: 44 nebulosum, see canaliculatum n. occidentale 35: 87; 39: 131 palmeri 47: 47 parvum, see canaliculatum p. pictum, see costatum p. rawsoni, see jujubinum r. rema 47: 145 splendens 37: 43 tricolor 50: 49-50 veliei 56: 15 zizyphinum 56: 15 Callista 45: 74 Callistochiton 51: 25; 57: 33; 59: 104 acinatus 51: 26 connellyi 51: 25-6, pi. 2; 56: 43; 59: 104 decoratus 58: 101 elenensis 52: 44 fimbriatus 58: 101 gabbi 51: 26; 52: 44 infortunatus 51: 26 lessonii, see neara 1. neara lessonii 58: 101 palmulatus 58: 101 pulchellus 51: 26; 58: 101 pulchior 58: 101 shuttleworthianus 46: 123; 57: 32 veredentiens 58: 101 Callocardia aresta 56: 33 convexa 56: 61 (Agriodesma) felipponei 56: 33 morrhuana 49: 133; 56: 142 (Agriopoma) morrhuana 38: 49; 39: 29 Callolima -- subgenus of Lima Callonia 40: 73-4 Callucina -- subgenus of Phacoides Calocochlea -- as subgenus of Cochlostyla and Helicostyla Calodisculus 48: 129 Calpurnus 40: 18 Calybium mouhoti 40: 140 Calyculina 40: 29 lacustris 52: 59 Calyptraea aspersa 39: 9 centralis 58: 60 clypeolum 39: 9 contorta 39: 9-11 fastigiata 39: 9-11; 44: 93 fusca 39: 9 lamarckii 39: 9-10 lichen 39: 9-11 lorica 39: 9 magellanica 39: 9 mamillaris 37: 125; 39: 9-11; 52: 44 poculum 39: 9 regularis 39: 9-10 solida 39: 9 sordida 39: 10 unguis 39: 9-10 Camaena 46: 67 amatangana 46: 62 arata 46: 63 oomorpha 46: 63 oomorpha demesana 46: 63 (Pseudobba) quoyi 58: 117 camoensis, Eutudora 40: 89 canipanulata, Planorbella 42: 133 campanulatum, Helisoma 40: 50; 41: 49, 51; 42: 57, 136; 48: 106, 109-10; 54: 7, 144; 57: 46; 58: 32; 59: 27, 29 campanulatum davisi, Helisoma 41: 50; 42: 133 campanulatum michiganensis, Helisoma 41: 49-51 campanulatum minor, Helisoma 59: 27, 29 campanulatum rudentis, Helisoma 40: 51 campanulatum smithii, Helisoma 57: 8 campanulatum wisconsinensis, Helisoma 42: 57, 133 campanulatus, Planorbis 36: 25: 39: 126; 40: 61, 139; 41: 85; 42: 17; 44: 69 campanulatus davisi, Planorbis 42: 17 campanulatus rudentis, Planorbis 41: 49- 50 campanulatus smithii, Planorbis 57: 9 campanulatus wisconsinensis, Planorbis 42: 115; 43: 83; 46: 59-61 campbelli, Diplopoma (Parachondrops) 48: 63 campechensis, Venus 36: 11 campechiensis. Area 49: 133; 54: 20; 58: 56; 60: 19 123 Campechiensis INDEX TO campechiensis, Area (Argina) 39: 82 campechiensis americana, Area 58: 56 campechiensis pexata, Area (Scapharca) 38: 49; 43: 35; 56: 141 campechiensis, Pholas 49: 133; 58: 60 campechiensis, Poteria, see P. varians c. campechiensis, Venus 37: 56; 38: 93; 39: 84, 94; 41: 120-1; 43: 35; 49: 132-3; 54: 21; 57: 68; 58: 58; 60: 34 Campeloma 38: 131, 134-5, 141; 41: 86, 106-7; 44: 33, 35-6, 39; 48: 110; 52: 128- 30; 54: 8, 12; 55: 83, 117-8, 126; 56: 131, 138; 58: 5 coarctatum 38: 139; see also ponderosum c. decampii 52: 127 decisa 44: 69 decisum 42: 18, 55, 128-9; 43: 85; 44: 46, 89; 48: 110; 52: 127-9; 53: 74-5; 54: 12, 14-7, 53; 56: 131-2; 58: 5; 59: 29 floridense 47: 18 geniculiforme, see rufum g. geniculum 52: 129-30; 54: 69; 58: 5 integrum 40: 9, 66 leptum 54: 12, 14-7, pi. 1 lewisii 47: 18; 56: 132; 58: 5 limnaeiformis 50: 127 limum 52: 130 macrospirum 44: 35 milesii 40: 50; 42: 136; 54: 12, 14, 16-7 multilineata 52: 128 multistriatum 44: 36; 52: 128 ponderosum 53: 74; 56: 132 ponderosum coarctatum 58: 5 productum 44: 36 rufum 40: 51; 43: 42; 44: 127, 130; 49: 69; 54: 13, 15-6; 59: 110, 112 rufum geniculiforme 52: 130 subsolidum 41: 92; 47: 147; 54: 8; 58: 117 tannum 54: 12, 14-6, pi. 1 vetulum 44: 35-6 campestre, Deroceras 50: 117; 51: 140 -- see also D. laeve c. campestris, Agriolimax 37: 66, 79; 40: 77, 113; 42: 21; 42: 124; 43: 42-4, 55, 59, 119; 44: 88, 129; 45: 34; 47: 139; 54: 31; 55: 68 campestris montana, Agriolimax 37: 79 campestris, Limax 58: 116 campestris, Planorbula 58: 32 campestris, Succinea 37: 66; 38: 62; 54: 69 campestris unicolor, Succinea 42: 20 campi, Praticolella 40: 16 Camptoceras 44: 80 austeni 44: 80 hirasei 44: 80 lineatum 44: 80 (Culmenella) prashadi 44: 80 subspinosum 44: 80 terebra 44: 80 camptodon, Unio 36: 128; 51: 92 -- see also U. tetralasmus c. cana. Helix 37: 46 canadense, Carychium, seeC. exile c. canadense, Sphaerium 38: 10; 57: 95 canadensis, Lampsilis, see L. ventricosa c. canadensis, Lymnaea, see L. emarginata c. canadensis, Physa 50: 143-4 -- see also P. copei c. canadensis ampla, Physa 50: 144 canadensis media, Physa 50: 144 canadensis parvaturris, Physa 50: 144 canadensis tenuis, Physa 50: 144 canadensis, Stagnicola, see S. emarginata c. canaliculata, Acteocina 35: 96; 56: 143; 58: 62 canaliculata, Anatina 58: 59 canaliculata, Bulina 51: 49 canaliculata, Labiosa (Raeta) 39: 82, 84; 49: 135; 54: 21 canaliculata, Raeta 37: 55; 43: 35 canaliculata, Thais (Nucella) 50: 47 canaliculata, Tornatina 37: 54 canaliculatum, Busycon 35: 33; 38: 51; 41: 10, 15; 52: 17; 56: 143; 57: 67; 58: 62 canaliculatum, Calliostoma 37: 35; 50: 49 canaliculatum nebulosum, Calliostoma 37: 35 canaliculatum parvum, Calliostoma 37: 35 canaliculatum, Fulgur 40: 138 canaliculatum, Melania 43: 7, 9-10 canaliculatum, Pleurocera 38: 45; 43: 7-8; 45: 62-3 canaliculatum filum, Pleurocera 53: 74; 56: 132 canaliculatum undatum, Pleurocera 48: 101-2 canaliculatum undulatum, Pleurocera 48: 26; 52: 140; 53: 74-5; 56: 132 canalifera, Anculosa 35: 10; 46: 39 canalzonalis, Spiraxis 53: 92 canarium, Strombus 60: 55 canbyi, Goniobasis 42: 29 Cancellaria 37: 122; 45: 81; 47: 145; 54: 54 adelae, see reticulata a. cassidiformis 37: 123; 46: 111 chrysostoma 37: 123 clavatula 37; 123 conradina 52: 27 cooperi 60: 90, 93 cumingiana 37: 123 (Bivetopsis) moorei 54: 45 (Bivetopsis) moorei pachia 54: 45 obesa 37: 123 pachia, see moorei p. reticulata 37: 55; 39: 85; 54: 54; 56: 36; 58: 62 reticulata adelae 54: 54 (Trigonostoma) tenera 39: 85 tesselata 37: 123 124 THE NAUTILUS Cardita cancellaria, Cantharus 58: 62 cancellata, Acmaea 58: 94 cancellata, Delphinula 59: 53 cancellata, Chione 36: 11; 37: 55; 39: 81, 84; 54: 21; 58: 58 cancellata, Cyclostrema 59: 52-4, 60 cancellata, Lora 40: 21 cancellata, Venus 49: 119; 51: 94 cancellata canadensis, Lora 40: 21 cancellata, Lucapina 52; 28 cancellata, Melania 42: 29 cancellatus, Platyodon 44; 92; 51: 101 cancellatus, Trichotropis 38; 26; 40: 78 cancellatus, Trochus 59; 53 cancrena, Nerita 37; 46 candeana, Acmaea 35: 121 candeana, Cyclostoma 37; 90 candeana, Tellina 49: 119 candens, Acteon 53: 21, pi. 6 candefacta, Archachatina, see A. adelinae c. and A. modestior c. candicans, Olivancillaria, see O. gibbosa c. Candida, Area 52; 29; 60: 19 Candida, Euglandina (Singleya) 55: 60 Candida conularis, Euglandina (Singleya) 55: 60 Candida, Odostomia (Amaura) 39: 132 candidula, Oliva, see O. carneola c. candidissima. Helix 36; 32 canescens, Alopia 36; 67 Canistrum 59; 119-20 canna, Epitonium (Asperoscala) 45: 113 canrena, Natica 37: 56; 39: 86; 46; 36, 45 canrena. Nerita 37; 46 canteriata, Ostrea 37: 46 Cantharus 53: 38; 54; 47 cancellaria 58; 62 distortus 37: 123 elegans 37; 123 gemmatus 37: 123; 46: 45 lugubris 54; 46-7 marjoriae, see vibex m. ringens 37; 123 sanguinolentus 52: 44 vibex 58: 28 vibex marjoriae 58: 28 Canthus tinctus 37: 55: 38: 94; 39: 85 capax, Lampsilis 36: 99 capax, Lutraria 38: 102 capax, Modiolus 36: 34; 52; 45 capax, Oreohelix, see O. strigosa c. capax, Oxystyla 48: 6 capax, Proptera 36: 99 capax, Schizothaerus, see S. nuttallii c. capensis, Burnupia 45; 136 capensis striatissima, Burnupia 45: 136 capensis, Cypraeovula 40: 18 capensis, Fauxulus 41: 108 capensis, Liguus 36: 113-4 -- see also L. crenatus c. capensis. Patella 37: 46 caperata, Ena 50: 11 caperata, Helicella 44: 55 caperata, Lymnaea (Galba) 36; 25; 40; 59; 41: 20; 42: 17, 19; 43: 82; 45: 140; 47: 3; 53: 78, 134-5; 54: 6 caperata warthini, Lymnaea 36: 125; 47: 1 caperata, Stagnicola (Hinkleyia) 42: 125; 43: 42, 119; 44: 88; 45; 117; 50: 14; 54: 117; 56; 54 caperata, Venus 37; 46 capillaceus, Borus 39: 78 capillaris, Goniobasis 50: 107; 58: 45 capillata. Helix 38: 82 capillata^ Nesophila 38; 82 capillatus, Viviparus (Bellamya) 56: 129 capitaneus, Conus 37: ^6; 60: 56 capitellum, Murex 37: 46 capri. Helix, see H. oculus c. caprimulgi. Helix, see H. ocul|js c. Caprinus 44: 138-9 Capsa 60: 27 capsella, Paravitrea 42: 92; 44: 17, 128-9; 46; 91; 48; 106; 53: 48, 85 capsella lacteodens, Paravitrea 41: 142 capsella, Vitrea 39; 80; 40: 66 capsella, Zonites 44: 128 capucina, Melibe 35: 50 Capulus californicus 37; 43 capucinus, Voluta 37: 46 caputanguis, Cypraea 57; 26 caput-serpentis, Cypraea 35: 83-4; 36; 121; 46: 112; 50: 77-8; 51; 2; 52: 5-6, 103-4; 55: 2; 57: 26-7, 83-5; 58; 129-30, 133, 144 caputserpentis caputanguis, Erosaria 57; 26-7 caputserpentis caputophidii. Erosaria 57: 27 caput-serpentis, Nerita 37: 46 caput-serpentis. Turbo 37: 46 cara media, Helix 49: 24 cara, Pleurodonte 49: 55 cara catadupae, Pleurodonte (Dentellaria) 49: 24, 55, pi. 2 carabaea, Corbula 52; 28; 55: 142 caracasensis, Opeas 58; 91 caracasensis, Synopeas 58: 85 CaracoUa helicoides 51: 93 caracoila, Caracolus 58: 117 Caracolus 41: 108; 42: 78, 80; 52; 38; 59; 117 -- also as subgenus of Pleurodonte carac-oUa 58; 117 carbunculus, Murex 37: 46 Carcharius cuspidatus 50: 91 Cardiomya 52: 27 cardinalis, Conus, seeC. regius c. cardinalis, Voluta, see V. mitra c. Cardita 44: 25: 45; 81; 52: 43; 58: 118; 59: 103; 60; 7, 27 affinis 48; 4; 58: 118 bailyi 58; 119; 60: 105 125 Cardita INDEX TO borealis St. Johnensis 60: 70 floridana 37: 55; 39: 83 grayi 52: 44 hilli 59: 104 (Cyclocardia) longini 58: 118-9 modulosa 58: 118 nodulosa 58: 118 radiata 52: 44 St. iohnensis, see borealis s. subquadrata 36: 18; 37: 41; 44: 92 tridentata 51: 49 variegata 60: 56 ventricosa 53: 22 Carditacea 36: 107 Carditamera radiata 37: 128 cardites, Cyphoxis 42: 113 Carditopsis bernardi 60: 7 Cardium 36: 110; 48: 4 aculeus 37: 45 album, see gronlandicum a. aspersum 37: 129 (Fragum) bianguiatum 37: 41; 46: 109 californiense 47: 102 ciliatum 40: 24; 54: 3 consors 46: 109; 52: 44 corbis 42: 67; 43: 51; 44: 92-3; 47: 102; 54: 53 edula 37: 47 edule 37: 47; 38: 3 elatum 36: 33; 44: 94; 46: 111; 47: 47; 57: 5 elenense 37: 129 flavum 60: 57 graniferum 37: 129 (Aphrodite) gronlandicum album 60: 70 isocardia 37: 55; 39: 83 laevigatum, see serratum I. leucostoma 49: 118 magnificum 37: 128 (Fragum) medium 39: 83 mortoni 36: 60; 38: 49 muricatum 49: 118, 133; 54: 21; 60: 19 obovale 37: 128 pinnulatum 35: 32; 40: 25; 56: 60, 143 procerum 36: 33; 47: 47; 48; 4 quadragenarium 36: 33 quadragenarum 44: 92 robustum 37: 53, 55; 39: 83; 43: 35: 54: 21 rogata 37: 51 senticosum 37: 128 serratum 50: 30 (Laevicardium) serratum 39: 83 (Laevicardium) serratum laevigatum 39: 83 substriatum 36: 33; 37: 41 Carelia 38: 82, 103; 46: 137-8; 50: 137 dolei 38: 82 pilsbryi 46: 138 turricula 46: 138 cardium, Lampsilis46: 107 caribaea, Poteria 49: 51, pi. 3 caribaea, Rissoella 57: 33 caribaeensis, Oliva 51: 112 caribaeensis, Truncatella 37: 66, 68; 38: 62; 56: 34 caribaeensis succinea, Truncatella 37: 66- 8; 56: 34 caribaeus, Liguus 49: pi. 3 caribaeus, Planorbis 41: 54 caribbea, Bankia 60: 108 caribbaeum, Cerithium 60: 60 carica, Busycon 35: 33, 136; 36: 10; 38: 51; 39: 38; 52: 16-7, 19-20; 53: 26; 56: 141: 57: 143; 58: 62 carica eliceans, Busycon 44: 30 carica^ Fulgur 52: 17, 19-20 carica, Murex 52: 17-8, 20 caricum, Busycon 41: 10, 15 • Carinarion 40: 72 carinata, Acteocina 35: 45-6, 122; 55: 121 carinata, Actinonaias 36: 100; 40: 66; 44 90, 130; 49: 80 carinata, Anatifa 40: 81 carinata, Anculosa 35: 9; 41: 60; 45: 60-1; 46: 38-9; 47: 35; 48: 34, 36 carinata nickliniana, Anculosa 35: 10; 42: 140-1 carinata, Anguispira, see A. alternata c. carinata, Cingula 35: 30, 32; 39: 132 carinata, Columbella (Alia) 37: 42 carinata, Helix, see H. perspectiva c. carinata, Hydrobia, see H. ventrosa c. carinata. Lacuna 38: 16 -- see also L. solidula c. carinata, Margarya, see H. melanoides c. carinata, Mitrella 44: 93; 50: 47; 53: 22 carinata gausapata, Mitrella 50: 47 carinata, Rotella 59: 3 carinata, Tornatina 35: 47 carinata, Veronicella 41: 129 carinatum, Teinostoma 59: 3 carinatus, Anculotus 35: 9-10 carinatus, Bulimus 46: 38 carinatus. Discus,, see D. patulus c. carinatus, Donax 52: 45; 58: 99; 60: 19 carinatus, Lepidopleurus 40: 141 carinatus, Neoplanorbis 58: 14 carinicallus, Teinostoma 60: 17-8, pi. 2 carinifer, Calipyrgula 48: 15 carinifer, Conulinus 46: 102 carinifera, Fluminicola, see F. avernalis c. carinifera, Goniobasis 40: 9-10: 42: 116; 46: 35-6; 56: 132: 58: 44 carinifera, Oreohelix 49: 69 cariniferum, Gyrotoma 58: 47 Carinifex43: 103-4; 44: 77-8, 110, pi. 6: 45: 133; 47: 28; 50: 30-1, 136; 59: 70 -- also as subgenus of Helisoma atopus 43: 143; 44: 77-9 jacksonensis 45: 133, pi. 11; 47: 1 newberryi 41: 119, 141; 44: 77-9, 109- 11, 113; 45: 133, pi. 11; 47: 27; 52: 35 newberryi subrotunda 45: 139 126 THE NAUTILUS Cassi occidentalis 38: 66 ponsonbii 35: 134 ponsonbyi 42: 121; 43: 103; 44: 79; 53: 137 subrotunda, see newberryi s. carinocostata, Goniobasis 54: 9; 58: 44 Carinoturris 58: 108 adrastia 58: 108 fortis 58: 108 carlosa, Heterozona 58: 101 cariosus, Lampsilis 43: 88; 44: 20; 50; 105 cariosus, Theodoxus 50: 10 caritoides, Petricola 43: 50; 55: 110:56:42 carlotta, Cerion 38: 60 carlsbadensis, Ashmunella 46: 19 carmen, Bulimulus 46: 50 carmeiiense, Caecum 52: 27 carnea, Marginella 56: 112, 114, 123, pi. 14; 59: 43 carnea. Pinna 49: 117 carnea, Pseudosimnia 54: 46 carneola, Cvpraea 36: 121; 50: 78; 51: 2; 52: 1, 6, 104; 55: 2; 57: 24, 83, 85; 58: 131, 144 carneola propinqua, Cypraea 52: 6 carneola, Oliva 42: 12 carneola adspersa, Oliva 42: 13 carneola bizonalis, Oliva 42: 12 carneola candidula, Oliva 42: 12 carneola coccinata, Oliva 42: 12 carneola trichroma, Oliva 42: 13 carneola unizonalis, Oliva 42: 12 carnicolor, Murex 59: 142 carnicolor, Oliva, see O. emicator c. CarocoUa 44: 13^; 59: 117-8, 120 albilabris 44: 138 eolina 36: o4 gualtieriana 59: 117 gvaltieriana 44: 13t lampas 59: 117 magna 59: 117 unifasciata 59: 1 17 carocolla. Helix 37: 46; 59: 117 carocolla dentata. Helix 37: 46 carocolla Linnaei, Helix 59: 117 carocolla, Pleurodonte (Caracolus) 59: 117 carocolla. Vortex 41: 108 caroli, Cepolis 53: 81, pi. 10 caroli, Opisthosiphon 45: 94-5, 97 carolinensis, Cypraea 52: 121 carolinensis. Cyrena 51; 94 carolinensis. Helix 51: 93 carolinensis, Littorina, see L. irrorata c. carolinensis, Retinella 46: 91: 53: 48, 85; 55: 8 carolinensis wetherbyi, Retinella 51: 105 carolinensis, V'itrea 35: 43 caroliniana, Pulymesoda 47: 116 carolinianum. Caecum 46: 122 carolinianus, Philomycus 35: 44; 44: 129; 47: 140; 48: 58: 51: 19, 88-90; 55: 7, 96- 7; 59: 27-8, 92 carolinianus flexuolaris, Philomycus 58: 125 caroliniensis, Philomycus 43: 44, 68; 48: 81 caroliniensis, Triodopsis 55: 9 carpenteri, Alvania 51; 123 carpenter!, Angulus 36: 34 carpenteri, Cerithiopsis 42: 3 carpenteri, Helmithoglypta 51: 10-6, pi. 1 see also H. traski c. carpenteri, Homalopoma 50: 49; 53: 22 carpenteri, Leptothyra 37: 43; 44: 93 carpenteri, Onchidium 50: 100 carpenteri, Tellina (Angulus) 37: 41; 44: 93 carpenterianus, Surculites 60: 90 carpinensis. Helix, see H. pisana c. carrizoensis, Micrarionta 59: 103 -- see also M. harperi c. carrosa. Cypraea 37: 47 carterensis, Partula 47: 24 carterii, Goniobasis 50: 128-9 carunculata, Hermodice 49: 60 Carunculina moesta 37: 100-1 moesta glans 37: 101 parva 36: 100; 37: 100; 39: 92; 44: 44, 47, 90; 59: 110 paula 49: 81 texasensis 39: 12, 92; 50: 104; 53: 137-8 carus, Gyraulus 47: 17 carus, Planorbis 38: 43 caruthersi, Helminthoglypta 59: 103 Carychium 36: 70; 40: 64; 43: 104, 138: 49: 115; 53: 79; 55: 98 bermudense 38: 7 bermudensis 37: 33 canadense, see exile c. exiguum 37: 65-6; 39: 12; 40: 17; 42: 134; 43: 68, 104, 119; 47: 16; 49: 115; 51: 128; 52: 15; 53: 88; 59: 28 exile 40: 17, 48, 62; 42: 21; 43: 43-4; 48; 57, 59, 106; 49: 115; 53: 47, 88 54: HI exile canadense 41: 122; 42: 134; 49: 115 jamaicense 48: 88 jardineanum 48: 88 magnificum 36: 141 nannodes 49: 115; 53: 47 occidentale 36: 141; 47: 112 perexiguum 51: 128 stygium 38: 134 Caryocorbula 40; 45-6 Caseolus -- subgenus of Geomitra Casmaria 41: 72; 58: 107 atlantica 58: 107 vibex 58: 38 casertanum, I^isidium 35: 107; 40: 27; 42: 24; 50: 10; 52: 80 casina, Venus 37: 47 Caspicyclotus 50: 9 herzi 50; 9 sieversi 50: 9 Caspilimax 40: 72 cas.si, Lymnaea, see L. bulimoides c. cassi, Stagnicola, see S. bulimoides c. 127 Cassidea INDEX TO Cassidea abbreviata 37: 124 sulcosa 52: 77 cassidiformis, Cancellaria 37: 123; 46: 111 cassina, Venus 37: 47 cassiquensis, Euconulus 57: 47 cassiquiensis. Helix 39: 34 Cassis 38: 34; 41: 72; 51: 34; 52: 73, 77; 58: 107; 60; 27 abbreviata 52: 73-4 -- see also sul- cosa a. abbreviatus 52: 44 abreviatus 45: 79 bicarinata 41: 72 centiquadrata, see sulcosa c. cepa 52: 74 coarctatus 52: 44 fimbriata 41: 72 gibba 52: 74 glaucum 41: 72 globulus 52: 74 inflata 49: 133, 136; 52; 74-6 -- see also sulcosa i. japonica 41; 72 kalosmodix 55; 2 laevigata 52: 75 madagascarensis 49: 133; 53: 38; 58: 61 madagascarensis spinella 58: 107 madagascariensis 51: 34; 58: 37 malum 52: 74 mexicana, see vibex m. nana 41: 72 pyrum 41: 72 recurvirostrum 52; 75 rufa 41: 72 semigranosum 41: 72 spinella, see madagascarensis s. sulcusa 52: 73-4, 77 sulcosa abbreviata 52; 73 sulcosa centiquadrata 52; 44 sulcosa inflata 52: 73, 76-7 tessellata 52; 75 testiculis 51; 34 testiculus 53; 38 tuberosa 51: 34; 53: 38; 58: 37, 61 undulata 52: 77 vibex o6; 121; 41: 72; 55: 2 vibex mexicana 46; 112 cassis, Acmaea 47: 102 cassis pelta, Acmaea 38: 27; 47: 102 castacensis, Cypraea 40: 144 Castalia multisulcata 57: 14 orinocensis 57; 14, pi. 5 Castaliuides laddi 48; 34 castanea, Astarte 40: 2-.; 51; 48; 54: 127; 56: 60, 142 castanea, Auriculella 37: 3 castanea, Cingula 39: 132 castanea. Helix, see H. hortensis pallida c. and H. nemoralis c. castanea, Pilsbryna 45: 36 castanea, Varicella (Euvaricella) 49; 23, 26, 1)1. 2 castanea, Vertigo, see V. modesta c. castaneozonatus, Liguus 35: 21; 36: 113-4; 60: 72 -- see also L. crenatus c. and L. fasciatus c. castaneozonatus lineolatus, Liguus 60: 72 castaneozonatus miamiensis, Liguus 60: 72 castaneozonatus roseatus, Liguus 60: 72 castaneum triplostephanum, Buccinum 51: 124 castaneus, Latirus 52: 45 castaneus, Liguus 38: 60 -- see also L. testudineus c. castaneus, Melampus 58; 122 castaneus, Stilifer 38: 97 castaneus. Turbo 37: 56; 39: 86; 51: 66; 58: 39, 60; 59: 11, pi. 2 castaneus tiara. Turbo 51: 66 castrensis, Acila 44: 50, 52, pi. 4; 55: 49 castrensis, Lioconcha 60; 57 cellaria, Polita 39: 103 catadupae, Pleurodonte, see P. cara c. catadupae, Sagda, see S. connectans c. catalinae, Epiphragmophora 42: 99 catalinae, Ischnochiton 59: 104 catalinae, Micrarionta 42: 100 catalinae, Strigatella (Atrimitra) 37: 41 catalinensis, Odostomia (Chrysallida) 37: 42 catalinensis, Pecten (Cyclopecten) 45: 65, pi. 4 catascopium, Lymnaea 36: 23-4; 37; 25; 38; 11; 40: 60; 42: 56, 115; 51: 93; 54: 8 catascopium adamsi, Lymnaea 36: 23 catascopium, Stagnicola 39: 120; 42: 123; 47: 31; 49: 129; 58: 78 cataracta, Anodonta 37: 29, 95, 97; 40: 91-2; 51; 134-5; 54: 52 catemascensis, AmpuUaria, see A. patu- la c. cateiiaria, Goniobasis 38: 47-8; 41: 52; 42: 28, 30-2, 67 catenaria postellii, Goniobasis 52: 131 catenaria, Melania 42; 28-9 catenatus, Natica 52: 45 catenifera, Psadara 57: 119 catenoides, Melania 42: 30 cathartensis, Eutrochatella, seeE. pulchella c. cathayensis, Cipangopaludina, seeC. ventricosa c. cathedralis, Micrarionta, see M. indioensis c. catilliformis, Mactra 38; 99 catilliformis, Spisula (Hemimactra) 38; 101; 44; 92 catillus, Pleurobema 36: 49 -- see also P. cordatum c. catlowiae, Bulimulus 53: 111, 115 -- see also B. irregularis c. catlowiae, Bulimus 53: 112 catskillensis. Discus, see D. cronkhitei c. catus, Conus 36: 121 128 THE NAUTILUS Cepolis caudata, Eupleura 35: 88; 38: 50; 50: 66; 56: 143; 58: 61 caudata, Ranella 35: 88; 51: 92 caurica, Cypraea 52: 104; 55: 2; 57: 83; 58: 131 caurina, Ferrissia 40: 76; 47: 112; 48: 48; 49: 68-9 caurinus, Pecten 47: 36; 51: 144; 54: 68 cava, Polygyra, see P. fraterna c. cavearum, Eutrochatel'um. see E. pul- chella c. cavernula. Libera 46: 71 Cavolina crassicornis 35: 74, 76 longirostris 58: 62 Cavolinia 47: 56 inflexa 47: 55 longirostris 47: 54-5 uncinata 47: 55-6 Cavum, Stenotrema, see S. fraternum c. cayenensis, Diadora 58: 60 cayennensis, Stenopus 57: 47 caymanbracense, Chondropoma 56: 3 caymanense, Cerion, seeC. martin- ianum c. caymanense^ Chondropoma 56: 3 caymanensis, Brachypodella 56: 5 caymanensis^ Cepolis 56: 9 caymanensis, Cepolis (Hemitrochus) 56: 5 caymanensis, Lacteoluna 56: 5 caymanensis, Microceramus 56: 5. 9 caymanensis, Poteria 56: 2 caymanensis oligoptyx, Poteria 56: 2, 9 caymanensis, Varicella 56: 7, 9 caymanensisampla, Varicella 56: 8-9 caymanicola, Choanopoma 42: 68 caymanicola Colobostylus 56: 3 cayohuesonicus, Latirus 58: 39 cayosense. Caecum 57: 32 cayucosensis, Helminthoglypta, see H. umbilicata c. cayucosensis, Turbonilla (Strioturbonilla) 43: 26, pi. 3 C. B. Adamsii, Lepidopleurus 58: 100 Cecilioides 40: 133; 42: 105-6 acicula 44: 140 gundlachi 44: 140 Cellana 53: 36 amussitata 49; 2 argentata 40: 80 exarata 40: 80 radians 38: 121 toreuma 49: 2 cellaria complanata, Polita 39: 104 cellaria, Vitrea 44: 71 cellarium, Oxychilus 51; 140; 52: 96-7 cellarius, Limax, see L. maximus c. cellarius, Zonites 50: 137 celeuthia, Monadenia, see M. fidelis c. Cemoria noachina 35: 86 centiquadrata, Semicassis 52: 73 centriquadratus, Vermetes 52: 46 cenourensis, Geomitra (Disculella) 35: 12 centiquadrata. Cassis, see C. sulcosa c. centralis, Calyptraea 58: 60 cepa. Cassis 52: 74 cepa, Cepolis 53: 82 cepa nicolinsianum, Cepolis 56: 82 Cepaea hortensis 50: 134; 53: 142; 57: 67; 60: 4, 102 nemoralis 51: 138; 59: 44-8; 60: 2, 4 cepoides, Helix 46: 72; 59: 121 Cepolis 38: 56-7; 47: 21; 48: 32; 52: 78, 143; 53: 82, 142; 56: 2, 81-4, 87 alauda 56: 82 bonplandi 38: 59-60; 40: 88; 56: 82 (Levicepolis) boriquenae 56: 88, pi. 9 (Plagioptyclia) boriquenae 53: 107 boriqueni 56: 82 camoensis, see cubensis c. caroli 53: 81, pi. 10 caymanensis 56: 9 (Hemitrochus) caymanensis 56: 5 cepa 53: 82 cepa nicolinsianum 56: 82 conspersula 49: 56 conspersula luscocincta 49: 54 conspersula negrilensis 49: 56 (Dialeuca) conspersula negrilensis 48: 139 (Dialeuca) conspersula platystyla 48: 139 cubensis 38: 60; 40: 88; 56: 82 cubensis camoensis 40: 88 (Euclastaria) debilis 52: 144; 56: 85, pi. 9 dennisoni 56: 82 (Jeanneretia) dermatina 56: 88, pi. 11 duclosiana salvatoris 56: 86 fuscocincta, see conspersula f. graminicola 56: 85, 90 (Hemitrochus) graminicola 49: 56; 56: 85-6, pi. 9 (Plagioptycha) imperforata 49: 105; 51; pi. 2 (Plagioptycha) indistincta 56: 86, pi. 9 leucoraphe 56: 82 lewisiana 56: 9 (Hemitrochus) lewisiana 56: 4 loxodon 56: 82 milleri 38: 60 multifasciata 52; 78; 56: 82 multistriata 38: 60; 40: 88; 56: 82 musicola 52: 144; 56: 82, 87, pi. 9 (Euclastaria) musicola 56: 85 negrilensis, see conspersula n. (Dialeuca) nemoraloides 49: 56 nicolinsianum, see cepa n. ovum-reguli 35: 120-1 parallela 40: 88 parriana 40: 88 platystyla 56: 89 -- see also conspersula P- pseudogilva 52: 78 pulchrior, see subconica p. (Plagioptycha) salvatoris 52: 144 -- see also duclosiana s. 129 Cepolis INDEX TO squamosa 56: 81-2, 88-90, pi. 10 (Bellacepolis) squamosa 56: 86, 88 (Hemitrochus) streatori 56: 4-5 subconica 49: 56 subconica pulchrior 49: 56 (Jeanneretia) subtussulcata 40: 88; 47: 21-2 (Jeanneretia) torrei 47: 22, pi. 3 troscheli 38: 60; 52: 78 varians 38: 60; 52: 78; 56: 82, 85-7 Cepolum 56: 82 ceramicum, Vasum 60: 56 ceramidum, Trigoniocardia 51: 114 cerasina, Macrochlamys 45: 30 cerasina reducta, Otesia 45: 30 ceratodes, Macrochlamys 42: 67 Ceratodiscus 36: 15-6; 41: 62-3; 48: 14 minimus 41: 62-3 portoricanus 41: 63 ramsdeni 41: 62-3 solutus 36: 15; 41: 62-3 Ceratostoma 43: 72 ceratus, Conus 37: 47 ceratus, Latirus 52: 45 cerea, Mangelia 58: 99 cerealis, Acteocina 35: 45-7, 96, 122; 42: 37 cerealis, Tornatina 35: 47 cereolus, Helix 38: 85 cereolus, Polygyra 37: 66; 38: 58; 43: 136; 50: 71-2; 55: 102 cereolus carpenteriana, Polygyra 37: 66- 9; 55: 102 Ceres 36: 84-5; 40: 65 cerina, Urocoptis, see U. sanguinea c. cerina, Gafrarium 52: 28 cerina, Gouldia 49: 118 cerina, Mangelia 36: 11; 56: 141; 58: 62 cerinum, Sphaerium 57: 95 cerinellus, Cingula (Nodulus) 51: 123 cerinoidea cuspidata, Zonitoides 40: 132 Cerion 35: 27, 90; 38: 57-9: 39: 42, 106; 40: 38, 74; 43: 101-2; 45: 89; 46: 2; 47: 38, 104, 116; 49: 49-50, 112; 51: 19-20; 55: 69, 82, 104; 56: 7; 57: 34, 59, 61 agassizii 38: 58, 60 agrestina 38: 58, 60 aguayoi 45: 89, 91, 98 aguayoi bequaerti 45: 91, 98 al'eni 42: pi. 4 basistriatum 57: 34 bendalli 49: 50 bequaerti, see aguayoi b. biminiense 56: 36 cabocruzense 57: 34-5 caerulescens 49: 50 carlotta 38: 60 caymanense, see martinianum c. chrysalis 40: 38, 74, 88 -- see also mumia c. cinereum 49: 112 copium, see pannosum c. crassilabris 57: 34 deani 57: 59-60, pi. 7 diablensis, see uva d. dimidiatum 51: 20-1 eleutherae 51: 22 eurystoma 38: 60 fasciata 38: 60 fastigiatum, see mumia f. felis 51: 23 fernandina 51: 20, pi. 3 (Strophiops) fernandina 51: 21-2 glans 38: 60; 49: 112 gubernatorium 51: 22 hatoensis, see uva h. incanum 37: 65; 38: 56, 59-60 incanum saccharimeta 37: 69 infandum 40: 88 johnsoni 40: 74, 89 johnsoni marielinum 40: 38 josephinae 49: 112-3, pi. 3 (Strophiops; josephinae 49: 49-50 (Strophiops) juliae 49: 112, pi. 8 laevigatum 56: 7 longidens 57: 34 malonei 51: 19-22, pi. 3 (Strophiops) malonei 51: 20 marielinum 40: 74-5, 88 -- see also johnsoni m. maritimum 51 : 21 marmoratum 57: 60 martinianum 56: 6 martinianum caymanense 56: 6, 9 (Strophiops) mcleani 51: 22, pi. 3 melanostomum 49: 50, pi. 3 milleri 49: 49-50 mumia 38: 60; 40: 89 mumia chrysalis 38: 60 mumia fastigiatum 40: 88 mumiola 38: 60; 40: 89 nudum 49: 50 ornatula 38: 60 oweni 49: 50 pannosum 56: 7 pannosum copium 56: 7 paucicostatum 42: pi. 4 pauli 57: 60-1, pi. 7 phoenicea 38: 60 pillsburyi 56: 36 portillonis, see ramsdeni p. proteus 45: 91; 51: 20 ramsdeni 47: 104-7 ramsdeni portillonis 47: 105-6 ramsdeni turgidum 47: 106-7 regina 51: 19-22 regium 51: 22 repitita 38: 60 saccharimeta 38: 60 -- see also incanum s. sagraianum 40: 74 salvatori 40: 38, 74-5, 89 santesoni 38: 60 sculpta 38: 60 stevensoni 51: 19, 23, pi. 3 striatellum 57: 34-5 130 THE NAUTILUS Cerithium turgidum see ramsdeni t. uva 39: 42, 106 uva diablensis 39: 42 uva hatoensis 39: 42 variabile 55: 104 victor 42: pi. 4 Ceriphasia sulcata 43: 10 Cerithea 39: 82 Cerithidea 41: 76; 56: 20-2, 24, 26, 28, 36; 57: 30 -- also as subgenus of Potamides aguayoi 56: 22, 25-6 albonodosa 56: 25 -- see also hegewischii a. anibigua 56; 21 beattyi, see costata b. californica 36: 34; 45: pi. 11; 56: 27-8 californica hyporhyssa 56: 27 costata 56: 21-2, 30 costata beattyi 56: 21 costata turrita 56: 21 decollata 56: 21 fragilis 56: 20 fuscata 56: 27 hanleyana 56: 22, 28 hegewischii 56: 24-5, 27; 57: 30 hegewischii albonodosa 56: 25 hegewischii pulchra 56: 25-6 hyporhyssa, see californica h. and sacrata ho insulaemaris 56: 21 iostoma 52: 44; 56: 22-3, 27 lineolata 56: 20 mazatlanica 56: 25, 27; see also varicosa m. minnor 56: 21 montagnei 36: 51; 56: 25 montagnei pulchra 56: 25 obtusa 56: 20 pliculosa 56: 21-4, 26-7 pliculosa veracruzensis 56: 22 pulchra 36: 51 -- see also hegewischii p. and montagnei p. pupoidea 56: 21 sacrata hyporhyssa 56: 27 scalariformis 37: 54; 56: 21-2, 24, 28 solida 56: 25-6 turrita 37: 54; 56: 21 -- see also costata t. valida 56: 26 varicosa mazatlanica 56: 24 veracruzensis, see pliculosa v. Cerithiopsidella -- subgenus of Cerithiopsis Cerithiopsis 35: 61; 36: 34; 42: 3 (Cerithiopsidella) antefilosa 37: 42 assimilata 47: 47 carpenterl 42: 3 charlottensis 38: 26; 51: 103 columna 36: 18 (Cerithiopsidella) cosmia 50: 48, 50 frazeri 51: 124 greenii 46: 119; 56: 143 onealensis 38: 26 (Cerithiopsidella) oneilensis 51: 102 (Cerithiopsis) oxys 37: 42 pedroana 42: 3 stejnegeri 51: 103 subulata 58: 61 Cerithium 36: 51; 38: 56, 58; 43: 72, 138; 54: 72; 56: 23, 28-9; 60: 27 adansonii 54: 72 adustum 37: 125; 46: 45 adustum nebulosum 52: 43-4 albocoopertum 56: 23 albovittatum 56: 23 algicola 39: 86 aluco 60: 55 alutaceum 60: 55 ambiguum 56: 21 atratum 35: 120-1; 39: 86; 46: 118 auricoma 53: 109, pi. 12; 54: 72 branneri 43: 25 brongniartii 56: 23 caribbaeum 60: 60 clathratum 56: 22 columna 55: 2 costatum 56: 30 decollatum 56: 20 degeneratum, see septemstriatum d. desolatum 56: 23, 29 eburneum 38: 60 eriense 56: 23, 30 fasciatum 60: 55 ferrugineum 39: 86; 51: 92; 56: 29 floridanum 38: 94; 58: 61 fortiusculum 56: 22, 25-6 fragile 56: 21 gemmatum 52: 44 greenii 46: 119 . hanleyi 56: 22, 28 hegewischii 56: 22; 57: 30 (Potamides) hegewischii 56: 23 hebes 46: 119 heteroclytes 56: 23, 28 humboldtii 56: 26, 29 hymerense 56: 23 lacteum 36: 121 laevigatum 56: 23, 28-9 lafondii 56: 21-2 lamarckii 56: 26, 29 largillierti 56: 24 lavalleanum 56: 22 lemniscatum 60: 55 literatum 53: 109 litteratum 35: 121; 60: 60 maculosum 37: 125; 46: 45 minimum 37: 53-4; 38: 60; 39: 86 minimum nigrescens 37: 53-4; 39: 86 minimum septemstriatum 37: 53-4; 39: 86 moenensis 54: 72 montagnei 56: 24 montagnei pulchra 56: 23 muscarum 37: 54; 38: 60; 51: 92 mutatum 55: 2 131 Cerithium INDEX TO nebulosum, see adustum n. nesioticuni 58: 122 nigrescens 56: 22 -- see also mini- mum n. nigrinum 56: 23, 29 nigrocinctum 46: 119 nodulosum 60: 55 obeliscus 36: 121; 55: 2 ocellatum 52: 44 pacificum 56: 30 peloritanum 56: 23, 28 petitii 56: 21 piperitum 60: 55 pirayni 56: 23 pliculosum 56: 22 pulchrum 56: 25-6 -- see also montagnei p. rawsoni 56: 23 reevianum 56: 24 rubro-lineatum 56: 28 sacratum 56: 27 (Potamis) sacratum 56: 27 salmacidum 56: 21 septemstriatum 51: 92; 56: 22, 29 -- see also minimum s. (Pyrazus) septemstriatum degeneratum 56: 23 sinensis 60: 55 stantoni 54: 72 stercus-muscarum 48: 4; 52: 44 teslaensis 43: 25, pi. 1 truncatum 56: 20 unicinctum 52: 44 validum 56: 25-6 variabile 38: 60; 39: 86; 56: 29 varicosum 56: 22, 25-7 vertagus 60: 55 zonale 56: 29 cernicus, Bulinus 43: 92 Ceropsis 50: 86 minima 50: 86 Cerostoma 43: 72 cerritensis, Aligena 55: 49, pi. 4 cerrosensis, Circulus 55: 122 cervinetta, Cypraea 44: 103; 55: 2, 45 cervus, Cypraea 52: 2 -- see also C. exanthema c. Cetoconcha 58: 67 malaspinae 58: 67 malespinae 58: 67 cetra, Patella 37: 47 ceylonensis nanus, Conus 60: 56 ceylonensis pusillus, Conus 35: 84; 60: 56 chacei, Goniobasis 48: 132-4 chacei, Micrarionta 59: 104 chacei, Opalia 51: 5-6, pi. 2; 53: 22 chacei, Pomatiopsis 50: 84-5 Chaenaxis 36: 63 Chaetopleura 58: 101 apiculata 36: 61; 56: 58; 58: 56 armillata 58: 100 columbiensis 58: 100 gemmea 58: 100 hartwegii 58: 100 lurida 52: 44 parallela 58: 100 chalybaea, Melania 41: 60 Chama 40: 42; 46: 75, 115; 47: 82-3; 51: 73-5, 143; 53: 39; 56: 116-7, 121; 60: 27 arcinella 37: 55; 47: 85 asperella 47: 85 bermudensis, see sinuosa b. broderipi 47: 85 buddiana 47: 47, 81; 52: 44 congregata 51: 73, 75-6, 78; 56: 117, 120, 123, pi. 12; 58: 58 cor 37: 47 coralloides 47: 82 corrugata 37: 128; 58: 96 digueti 47: 83 echinata 47: 82; 52: 44; 58: 96 exogyra 47: 83 ferruginea 49: 118; 51: 77 fibula 47: 83 firma 51: 74 -- see also sinuosa f. florida 51: 74; 56: 117, 119-20, 123, pL 12 fornicata, see frondosa f. frondosa 47: 81 frondosa fornicata 47: 81 frondosa mexicana 47: 81-2 gigantina 37: 48 imbricata 47: 85 inermis 47: 83 iostoma 40: 81; 47: 84-5 lactuca 51: 74; 56: 117, 120, 123, pi. 12 macerophylla 39: 83; 51: 75-6, 143; 56: 117, 119, 123, pi. 13 macrophylla 38: 61 mexicana 57: 5 -- see also frondosa m. pacifica 47: 85 parasitica 47: 82 pellucida 37: 41; 47: 82 purpurascens 47: 81 sarda 51: 74; 56: 117, 119, 123, pi. 14 sinuosa 51: 74, 76-7; 56: 118, 121. 123, pi. 13 sinuosa bermudensis 51: 74, 77; 56: 118, 122-3, pi. 14 sinuosa firma 51: 75-8, 143; 56: 118, 121, 123, pi. 13 sordida 47: 82 spinosa 47: 82-3, 85 squamuligera 47: 82; 58: 96 variegata 51 : 74 venosa 47: 83 chama granosa, Venus 37: 47 Chamaearionta 43: 75 chambasensis, Urocoptis 42: 80, pi. 5 chamberlaini, Epitonium 45: 6, 8-9, pi. 1 chameleon, Onchidium 51: 87 chamissoi. Microcystis 38: 82 Chamostrea 47: 83 champaquianus, Odontostomus 54: 95 132 THE NAUTILUS Chiton Chanomphalus 41: 123, 144 pilsbryi 41: 123, 128 chapalense, Helisoma, see H. tenue c. characteristica, Siphonaria 45: 75-6 --see also S. gigas c. chariessa, Anachis 53: 83, pi. 10 charlestonensis, Epitonium 45: 8, pi. 1 charlestonensis, Polygyra, see P. hopetonensis c. charlottei, Leptinaria 36: 32; 39: 79-80 charlottensis, Cerithiopsis 38: 26; 51: 103 Charonia tritonls 55: 2; 58: 120 charpentierianus, Ancylus 37: 7, 9, 12 Chascax maderensis 52: 86 chautauquensis, Helisoma, see H. trivolvis c. cheatunii, Humboldtiana 48: 93, 115 cheatumi, Potamopyrgus 48: 91, 114 Cheilea 39: 11 equestris 37: 125; 60: 55 cheiranthicola, Geomitra 35: 13 chemnitzi. Area 54: 20 chemnitzi. Area (Barbatia) 46: 123 Chelidonopsis 39: 33 Chemnitzia caelata 39: 144 textilis 60: 71 Chemnitzia -- also as subgenus of Turbonilla caelata 39: 144 textilis 60: 71 ehemnitziana, Braehypodella (Apoma) 49: 58 ehemnitziana, Pleurodonte 49: 55 chemnitzianum, Pedalion 38: 61; 46: 45 ehemnitzii, Glycymeris 37: 127 chengtehensis, Bellamya 56: 126 Chersina 47: 147; 59: 117 virginea 47: 147 ehersinella, Helix 43: 96, 124 chersinella, Polita 37: 132; 43: 123 ehersinella, Pristiloma 43: 124 ehersinella wascoense, Pristiloma 43: 123-4 ehersinella, Vitrea 43: 114 chersinus, Eueonulus 37: 66, 69; 39: 80; 41: 34; 42: 20; 46: 58-9; 48: 57-8, 80; 51: 105-6; 53: 47, 85; 55: 8, 97; 57: 28, 132 ehersinus dentatus, Eueonulus 53: 47 chersinus polygyratus, Eueonulus 39: 124; 40: 53-4; 42: 15; 43: 81; 47: 138 ehersinus trochulus, Eueonulus 38: 42; 42: 66; 58: 69 Chersodespoena 36: 85 Chersomitra 41: 21; 55: 52-3, 55 -- also as subgenus of Strepstyla chesapeakea, Sayella 53: 44 ehevalieri, Choanopoma 48: 65 chevalieri album, Choanopoma 48: 65 ehevalieri virgatum, Choanopoma 48: 65 chiaehiana, Lora 38: 25 Chieoreus -- subgenus of Murex chihuahua, Fluminieola 48: 92 childreni, Cypraea 50: 82; 51; 2 ehildreni. Ipsa 57: 83; 58: 144 chilense, Entodesma 49: 19 chilhoweensis. Helix 40: 132 chilhoweensis, Polygyra 38: 140; 40: 3; 41: 28; 46: 91; 51: 17 Chilina 38: 107 Chimotrema 52: 98 ehiloensis, Pholas 37: 130 Chilostoma -- subgenus of Helicigona chinensis, Hydroeena 54: 119 ehinensis, Cipangopaludina 56: 125, 127 chinensis hainanensis, Cipangopaludina 56: 127 ehinensis stelmatophora, Cipangopaludina 56: 127 ehinensis, Philomycus 38: 80 chinensis, Viviparus 59: 64 Chione 36: 33; 48; 4; 49: 18 amathusia 37: 129 (Timoelea) asperrima 37: 129 eancellata 36: 11; 37: 55; 39: 81, 84; 54: 21; 58: 58 (Timoelea) columbiensis 37: 129 compta 37: 129 fluetifraga 36: 33; 47: 46 gnidia 37: 129; 44: 94; 46: 111; 55: 121; 57: 5 intapurpurea 52: 28; 58: 58 intepurpurea 54: 21 latilirata 52; 33; 54: 21; 56: 13; 58: 58 marica 60: 57 pieta 59: 104 purpurissata 47: 47 pygmaea 36: 11 sechurana 49: 17, pi. 1 subimbrieata 56: 79 suecinata 36: 33 suecineta 37: 41; 52: 44 undatella 36: 33; 52: 44 undatostriata 58: 99 chione, Venus 37: 47 ehionea, Venus 37: 47 Chioraera 35: 50, 52-3, 55, 100; 36: 89-90, 94-5, 136; 38: 34 dalli 36: 86-7, 89, 96, 137, pi. 4 leonina 35: 51, 54; 36: 87-8, 96 chipolanus, Acteon 53; 21 chiragra, Pteroeera 55: 2 chiricahuana, Ashmunella 45: 141 chiriquiana, Streptostyla 40: 130-1 chiriquiensis, Streptostyla 55: 59 Chiroktisma 49: 67 chishimana, Maerocallista 37: 26 chisosensis, Humboldtiana 41: 82; 44: 13 ehisosensis, Polygyra 49: 100-1 chisosensis discobolus, Polygyra 49: 101 Chiton 35: 83; 36: 107; 37: 3, 39: 38: 57, 95; 39: 35-6; 43: 30, 38: 44: 25; 46; 115; 48: 89: 49: 42; 56: 43; 59: 103; 60: 89 albolineatus 52: 43-4 amieulatus 39: 48, 75-6; 50: 142 apieulatus 51: 94 densiliratus 58: 101 133 Chiton INDEX TO emersonii 39: 76 jugosus 58: 101 laevigatus 52: 44 larvaeformis 39: 49 limans 58: 101 longicymba 37: 72 marmoreus pusulosus 60: 70 marmoreus St. Johnensis 60: 70 miltoplax 45: pi. 10 monticularis 50: 142 pallasii 39: 76; 50: 142 petho'atus 43: ^37: 44: 25 porosus 39: 75 pusulosus, see marmoreus p. scaber 48: 89 semilaevis 58: 101 siculoides 58: 101 squamosus 35: 120-1 stelleri 39: 75-6 St. johnensis, see marmoreus S. stokesii 36: 51 tuberculatus 35: 121 vestitus 39: 75-6 Chitonellus 39: 75 chittenangoensis, Succinea, see S. ovalis c. Chittia -- subgenus of Geomelania chittyana, Eutrochatella 48: 11 chittyana, Pleurodonte, see P. tridentata c. chittyi, Ancylus 37: 7-9, 12, 16 chittyi, Hebetancylus 37: 9 Chlamydephorus 48: 142-3 Chlamydochiton 39: 47 amiculatus 39: 47 Chlamydophorus 55: 63 Chlamys 47: 63; 50: 27 -- also as subgenus of Pecten albolineatus 49: 29 (Aequipecten) flabellum 47: 64 hericeus 38: 24 (Aequipecten) syriacus 50: 58 tauroperstriata spinosa 50: 55 chlorata, Terebra 55: 2 Chloritis (Sulcobasis) atalanta 47: 23, pi. 3 delphax 50: 53 (Sulcobasis) isis 47: 24 (Sulcobasis) majuscula 47: 23-4 rehsei 5U: 53 Chlorostoma -- also as subgenus of Tegula (Omphalius) fasciatum 39: 86 pellis-serpentis 36: 51 substriatum 46: 120 chlorostoma, Cymatium 55: 2; 60: 55 chlorostoma, Peristernia 36: 122; 52: 118; 58: 122-3; 60: 56 chlorotica, Elysia 59: 95-7 Choanomphalus 55: 139 Choanopoma 37: 92; 48: 61, 64-5; 52: 139; 55: 34 aculeosum see hillianum a. albinodatum see fimbriatulum a. album 48: 66 -- see also chevalieri a. album fuscum 48: 65 amabile, see scabriculum a. anomalum 48: 60 (Jamaicia) anomalum 48: 64 banksianum 48: 65 blandianum, see lima b. bronni 48: 61 bronnii 48: 65 bronnii fuscolineatum 48: 65 caymanicola 42: 68 chevalieri 48: 65 chevalieri album 48: 65 chevalieri virgatum 48: 65 docens, see fimbriatulum d. fimbriatulum 48: 60, 64 fimbriatulum albinodatum 48: 64 fimbriatulum docens 48: 64 fuscolineatum, see bronnii f . fuscum, see album f. gaigei 47: 115 hillianum 48: 64 hillianum aculeosum 48: 64 hillianum leporilabre 48: 64 humphreyanum 48: 65 indivisum, see uncinatum 1. inquisita 42: 80, pi. 5 (Tudorops) interruptum 48: 65 jayanum 48: 65 lamellosum 48: 65 leporilabre, see hillianum 1. lima 42: 68 lima blandianum 48: 65 lincina 48: 64 magnitesta, see redfieldianum m. (Jamaicia) moussonianum 48: 65 (Colobostylus) negrilense 48: 61, 65, pi. 2 (Annularodes) pilsbryi 42: 98, pi. 5; 47: 135; 52: 139 pisum 48: 64-5 redfieldianum 48: 6o (Tudorops) redfieldianum 48: 60 redfieldianum magnitesta 48: 65, pi. 2 (Tudorops) redfieldianum magnitesta 48: 60 retrorsum 48: 65 rufilabre, see solidum r. scabriculum amabile 48: 64 solidum 48: 65 solidum rufilabre 48: 65 thysanoraphe 48: 65 triplopoma 48: 60, 64, pi. 2 uncinatum 42: 98; 47: 134-5 (Annularodes) uncinatum indivisum 42: 98; 47: 133-4; 52: 139 virgatum, see chevalieri v. yallahense 48: 65 chocolata, Micrarionta 49: 15; 59: 103 chocolata, Thais 37: 121, 124 choccoloccoensis, Anculosa 58: 42 choctawhatchensis, Lioplax, see L. pilsbryi c. Chondrina 36: 63-4 134 THE NAUTILUS Cincinna Chondropoma 38: 56, 59; 40: 39; 48: 66 adamsi 48: 66 affine 40: 89 armatum 48: 66 auberianum 40: 89 augustae, see fascia a. aurora 48: 66 booneae, see textum b. caymanbracense 56: 3 caymanense 56: 3 columna 48: 66 crenulosum 48: 66 dentatum 37: 69; 38: 61; 40: 89; 54: 32 egregium 40: 89 (Parachondria) fascia 48: 65 (Parachondria) fascia augustae 48: 65 (Parachondria) fascia proximum 48: 65 (Parachondrella) fecundum 48: 66 gnote 48: 144 gouldianum, see poeyanum g. gundlachi 40: 89 irradians 40: 39, 89 irradians mahoganyi 40: 39 mahogany i, see irradians m. minor, see pictum m. muticum 48: 66 (Parachondria) nitens 48: 66 obesum 40: 89 ottonis 38: 61; 40: 89 parvicaymanense 56: 3 pfeifferianum 40: 89 pfeigerianum 38: 61 pictum 38: 61; 40: 89 pictum minor 40: 89 poeyanum 38: 61; 40: 89 poeyanum gouldianum 40: 89 proximum, see fascia p. retreatense, see sericinum r. revinctum 38: 58, 61 sagebieni 40: 89 scopulorum, see shuttleworthi s. (Parachondrella) sericinum 48: 61 sericinum retreatense 48: 66, pi. 2 (Parachondrella) sericinum retreatense 48: 61 shuttleworthi 40: 89 shuttleworthi scopulorum 40: 89 soror 48: 144 tenuiliratum 38: 61 (Parachondria) testudineum 48: 65 textum 47: 107 (Chondropomorus) textum booneae 47: 107 vinalense 40: 89 yucayum 40: 89 Chondropomorus -- subgenus of Chondropoma Chondrula bayeri 50: 10 Choneplax serpens 58: 102 christyi, Planorbula 42: 17, 19-20; 58: 78 christyi, Polygyra 35: 42; 51: 136 christyi, Segmentina 38: 11; 40: 61; 43: 84 chrysalidiformis, Helicostyla 46: 64 chrysalidiformis antoni, Helicostyla 46: 64 chrysalidiformis calawaganensis, Helicostyla 46: 64 chrysalis, Cerion 40: 38, 74, 88 chrysalis, Cerion, see C. mumia c. Chrysallida 50: 48 -- also as subgenus of Odostomia chrysis, Succinea 38; 11, 123; 46: 128; 53: 64, 131-3 chrysochasma, Eutrochatella 40: 89 chrysochasma mendozana, Eutrochatella 41: 79 Chrysodomus 37: 34; 54: 125-6; 59; 61 decemcostatus 35: 30, 32, 88, pi. 1; 39: 38, 135 despectus tornatus 39: 135 (Sipho) hypolispus 37: 35 ithius 60: 93 kelseyi 37: 35 liratus 47: 102 (Ancistrolepis) magnus 47: 93 rectirostris 59: 61-2 saturus 50: 102; 57: 142 stantoni 47: 93 tabulatus 60: 90, 93 tornatus, see despectus t. vinosus 51: 125 chrysoides, Oliva, see O. tremulina c. chrysomela, Leptaxis 35: 102-3 chrysomela bifasciata, Leptaxis 35: 103 Chrysostoma paradoxum 60: 55 chrysostoma, Cancellaria 37: 123 chrysostoma, Loripinus 54: 21 chrysostoma, Lucina 35: 121; 39: 83; 49: 133 chuckwallana, Micrarionta 49: 15; 59: 103 chui, Viviparus 56: 126 Chunioteuthis 35: 136 chuquisacana, Odontostomus 44: 33 churchi, Monadenia 46: 79, 82-3, 86, pis. 5, 6 cicatricosa, Semicassis 52: 75-6, pi. 5 cicatricosa peristephes, Semicassis 52: 76-7, pi. 5 cicatricosum, Buccinum 37: 47; 52; 75 cicatrix, Cypraea 37: 47 cicercula, Cypraea 50: 78; 51: 2; 52: 104 cicercula, Pustularia 57: 23, 83; 58: 144 ciconia, Anodonta 36: 8 Cidarina cidaris 38: 27; 51; 103 cidaris, Cidarina 38: 27; 51: 103 cieba, Bankia (Plumulella) 60: 108 ciequensis, Pineria 50: 139 ciliata, Mopalia 38: 28; 46: 124; 51: 123 ciliata wossnessenskii, Mopalia 47: 102 ciliata, Paludina 55: 83 ciliatum, Cardium 40: 24; 54: 3 cinctum, Stenotrema, see S. monodon c. cimex, Alvania 53: 29-30 cimex. Turbo 53: 29 Cincinna 53: 140 135 Cincinnatia INDEX TO Cincinnatia 48: 110 cincinnatiensis 40: 17; 45: 118; 48: 110 emarginata 48: 110 judayi 48: 110 cincinnatiensis, Amnicola 36: 20; 41: 20 cincinnatiensis, Cincinnatia 40: 17; 45: 118; 48: 110 cincinnatiensis, Melania 35: 11; 43: 13-4 cincinnatiensis, Pomatiopsis 43: 68; 44: 89 cincinniformis lubanensis, Helicostyla 44: 141 cincta, Odostomia (Chrysallida) 37: 42 cincta, Oliva, see O. oliva c. cincta, Polygyra 46: 58-9 cinctus, Murex 37: 47 cinerea, Anoma, see A. tesselata c. cinerea, Cypraea 53: 38; 58: 38 cinerea, Margarites 39: 131; 54: 3 cinerea maxima, Margarites 39: 131 cinerea, Pupillaria 38: 27 cinerea, Terebra (Hastula) 39: 84 cinerea, Urosalpinx 35: 88; 38: 50; 41: 8, 15, 141; 42: 68 cinerea aitkinae, Urosalpinx 36: 104 cinereum, Buccinum 35: 88 cinereum, Cerion 49: 112 cinereum, Pisidium 50: 10; 52: 80-3, pi. 6 cenereus, Fusinus 46: 110: 47: 47 cinereus. Fusus 51: 49 cinereus, Limax 50: 133-4 cinereus, Urosalpinx 49: 137; 50: 66; 54: 127; 56: 143; 57: 143; 58: 61; 60: 75 cinereus unicolor, Limax, see L. maxi- mus c. cingenda, Venus 51: 94 Cingula 59: 103 aleutica 38: 26; 47: 103 areolata 39: 132 bryanti 39: 132 californica 50: 48 carinata 35: 30, 32; 39: 132 castanea 39: 132 (Nodulus) cerinellus 51: 123 eyerdami 47: 103, pi. 8; 57: 142 forresterensis 47: 103, pi. 8 jan-mayeni 39: 132-3 (Nodulus) kyskensis 51: 123 montereyensis 50: 48, 50 cingulata, Leucozonia 37: 123; 43: 137; 52: 43, 45 cingulata, Olivancillaria, see O. gibbosa c. cingulata, Philine 40: 22 cingulatum, Busycon 52: 17 cingulatus, Liguus 36: 113-4 Cingulifera planospira 50: 134 cingulifera, Biforina 36: 121 cingulifera, Leucozonia 35: 121; 38: 60; 39: 85; 52: 28 cingulifera, Terebra (Terebrina) 37: 63 cingulifera, Trifora (Biforina) 36: 123 Cingulina -- also as subgenus of Turbonilla triarata 50: 108 cingulum, Conus 55: 2 cinnamomea, Despoena 36: 85 cinnamomeolineatus, Drymaeus 57: 47 Cipangopaludina 5£: 125-7 aubryana, see lecythoides a. cathayensis, see ventricosa c. chinensis 56: 125, 127 chinensis hainanensis 56: 127 chinensis stelmatophora 56: 127 compacta 56: 127 delavayana 56: 127 diminuta 56: 127 fluminalis, see lecythoides f. haasi 56: 127 hainanensis, see chinensis h. lapidea 56: 127 latissima 56: 127 lecythis crassior 56: 127 lecythoides 56: 127 lecythoides aubryana 56: 127 lecythoides fluminalis 56: 127 longipsira 56: 127 lecythis 56: 127 leucostoma 56: 127 patris, see ventricosa p. stelmatophora, see chinensis s. ussuriensis 56: 127 ventricosa 56: 127 ventricosa cathayensis 56: 127 ventricosa patris 56: 127 ventricosa wingatei 56: 127 wingatei, see ventricosa w. cipmannianus, Conus 37: 47 Circe sulcata 60: 57 circicula tricornis, Cypraea 36: 121; 50: 78 Circinaria 44: 142 concava 35: 42; 40: 117; 43: 67 hemphilli 45: 86 sportella 38: 28 vancouverensis 38: 122-3 circinata, Oliva 35: 135; 39: 85 circinata. Pilar 60: 19 circinata, Pitaria 37: 129 circularis, Pecten 45: 82; 55: 121 circularis aequisulcatus, Pecten (Plagioctenium) 37: 41 Circulus 60: 13 -- also as subgenus of Lydiphnis beaui 51: 67 bicarinatus 51: 67 cerrosensis 55: 122 cubanus 46: 120, pi. 6 liratus 56: 144 (Lydiphnis) liratus 56: 141 nicholsoni 60: 10-2 stirophorus 51: 67 circulus, Unio 37: 136 circumcarinata, Epiphragmophora 36: 141 cir'cumcarinata, Monadenia 46: 85; 51: 24; 52: 139 circumcincta, Terebra 37: 63 136 THE NAUTILUS Clidiophora circumfirmatus, Poecilozonites 38: 7 circumlineata, Goniobasis 46: 4-5; 48: 96-7, 130-1 circumscriptus, Arion 36: 105; 38: 72; 40: 72; 46: 107; 50: 100, 134; 51: 140; 52: 96: 54: 69; 55: 61; 59: 92 circumscriptus leucophaea, Arion 46: 107 circumstriatus, Gyraulus 42: 133 circumtexta, Tritonalia 37: 42; 50: 47 Cirsotrema 51: 7; 54: 63 -- also as subgenus of Epitonium montereyensis 51: 6 Cistula maculata 37: 93 raveni 37: 90 cistronium, Aorotrema 59: 11 cistronium, Cyclostrema 56: 18 cistula, Lacteoluna 56: 5 cistula, Lasaea 56: 31-2 Cistulops 37: 90-2; 39: 106 raveni 37: 93; 39: 43 citharella, Cyclostoma 55: 42 citrina, Anoma, see A. splendens c, citrina, Ariophanta 50: 30 citrina, Helix 50: 30 citrina, Nanina 51: 104 citrina, Naninia 50: 30 citrinus, Bulimus 37: 84-5, 88 citrinus, Conus 58: 38 citrinus, Murex, see M. recurvirostris c. citrinus, Mytilus 58: 39 civica, Corbis 50: 91 claibornensis, Lampsilis 37: 142; 49: 81 claibornensis obtusa, Lampsilis 37: 141 clandestina, Cypraea 52: 105; 57: 83 clappi. Clappia 53: 126-7; 58: 10 clappi. Discus 52: 14 clappi, Gastrocopta, see G. armifera c. clappi, Helicina 38: 60 clappi, Oreohelix 40: 4 clappi, Polygyra, see P. muUani c. clappi, Terebra 36: 123 clappi. Vertigo 50: 98 clappi. Varicella 49: 26 Clappia 53: 124, 126-7; 58: 3, 10 clappi 53: 126-7; 58: 10 umbilicata 58: 10 Clappiella -- subgenus of Gastrodonta Clara, Endodonta 41: 128 clarionensis, Pseudochama 52: 48, pi. 4; 59: 104 clarkensis, Pecten 43: 23, pi. 2 clarki, Anguispira 49: 100 clarki, Phos 58: 27 clarkiana, Lampsilis 37: 142, 144 clarkianus, Unio 37: 142-3 clarkii, Polvgyra 35: 42; 46: 18, 59, 91; 51: 136 clathrata, Ocenebra, see O. interfossa c. clathrata, Tritonalia, see T. interfossa c. clathrata, Tryonia 48: 92; 53: 124; 54: 118 clathratum, Cerithium 56: 22 clathratus, Lagochilus 55: 43 clathratus, Trophon 35: 87; 39: 134 Clathrodrillia inaequistriata 58: 28 (Moniliopsis) incisa 50: 47 (Moniliopsis) incisa ophioderma 50: 47 ophioderma, see incisa o. pentagonalis 52: 29 clathrus, Neptunea 54: 125 clathrus, Scalaria 51: 49 Chlathurella -- also as subgenus of Pleurotoma lineolata 45: 124 clausa, Goniobasis 58: 45 clausa, Helix 51: 49 clausa, Natica 35: 32; 39: 132 clausa, Polvevra 43: 43, 67; 46: 88; 50: 119- 20; 51: 56, 58; 52: 97: 53: 86 Clausilia 39: 27; 50: 17; 59: 118 angrandi 58: 83-4 antiperversa 40: 70 bidens 36: 31; 41: 108; 59: 118 bidentata 36: 67; 41: 94 granulosa 35: 95 laminata 59: 118 (Nenia) pampasensis 58: 80 pupoides 60: 58 s[losarskiil rosenbergi 35: 95 tridens 50: 139 ventricosa 50: 18 clausus, Mesodon 56: 62; 60: 79 Clava 43: 72; 45: 108 clava, Mytilus 37: 47 clava, Pleurobema 36: 80-1, 96; 57: 16 clavaeformis, Goniobasis 52: 126; 56: 132-3 clavatula, Cancellaria 37: 123 clavatus, Pecten 50: 26 clavigera, Thais, see T. tumulosa c. clavium, Teinostoma 59: 2, 4, pi. 1 clavula. Patella 37: 47 clavulinum, Opeas 58: 89-90 clavulinum hawaiiense, Opeas 38: 82 clavulinus, Lamellaxis (Tomopeas) 58: 89 Clavus pembertoni 58: 67 claxois dactylosus, Conus 55: 2 dementia 40: 108 Clementina, Odostomia (Chrysallida) 37: 42 clenchi, Glossodoris 49: 59, 61, pi. 4 clenchi, Goniobasis 38: 46-7; 42: 31 clenchi, Liguus, see L. fasciatus c. clenchi, Marginella 49: 139; 50: 22 clenchi, Polygyra 45: 129. pi. 10 clenchi, Somatogyrus 50: 16, 18 clenchi, Urocoptis, see U. tenuistriata c. Cleone limacina 40: 22 Cleopatra 44: 35 Cleotrivia bathypilula 60: 51-2 globosa 60: 51-2 clewistonense, Helisoma 54: 17, pi. 1 clewistonensis, Anachis 49: 138-9 Clidiophora -- subgenus of Pandora 137 Climacia INDEX TO Climacia 59: 77-9; 60: 12 -- also as subgenus of Teinostoma athleenae 59: 77-9, pi. 8 calliglypta 59: 77 radiata 59: 77 schumoi 59: 77, 79 tholus 59: 77-80, pi. 8 Climacina 60: 12 Clinopegma 47: 93 clintonius, Pecten (Placopecten) 38: 112 Clione limacina 54: 4-5 Clionella 57: 115 clionella, Burchia 57: 116 clionella, Leucosyrinx 57: 116 clippeata, Anculosa 58: 41 clisea, Mactra (Mactrella) 37: 130; 48: 105 Clithon 50: 111-2 clutei, Oreohelix, see O. yavapai c. clypeolum, Calyptraea 39: 9 coactiliata, Averellia (Trichodiscina) 44: 81 coahualensis, Cylindrella 50: 136 coarctata, Levenia 37: 124 coarctatuni, Campeloma 38: 139 -- see also C. ponderosum c. coarctatus. Cassis 52: 44 Cobresia 42: 137, 139 vitrea 42: 137 coccinata, Oliva, see O. carneola c. coccineum, Pleurobema 36: 49; 44: 130 -- see also P. cordatum c. coccineum pauperculum, Pleurobema 44: 47 coccineum, Quadrula 36: 49; 41: 92 cochinchinensis, Megaustenia 43: 52 cochinella, Lamellaria 53: 80 Cochlea 43: 72 cochlea, Epitonium 51: 67; 54: 63 cochleariformis, Siphonaria 49: 2 cochlearis, Latirus 52, pi. 5 Cochlicella 59: 116-9 acuta 35: 39 conoidea 59: 117 Cochlicolla 59: 118 Cochlicopa 43: 57, 104; 45: 72; 52: 96 appalachicola, see lubrica a. lubrica 35: 36; 36: 38; 37: 79; 40: 47, 58, 113; 41: 20, 42, 43; 42: 15, 124, 135; 43: 43-4, 53, 55, 57, 61, 81, 118, 134; 44; 45, 71, 129; 45: 72; 47: 8, 139; 48: 59, 82; 50: 117, 121; 51: 57, 63, 140; 52: 96; 53: 132-3; 54: 31; 55: 14; 56: 53; 58: 79; 59: 68, 91; 60: 5, 72, 100 lubrica appalachicola 48: 82 lubrica morseana 48: 59 lubrica sinistrorsum 37: 71 morseana, see lubrica m. sinistrorsum, see lubrica s. cochlidium. Varicella 49: 26 Cochliopa 40: 4; 42: 106; 48: 92, 114; 50: 16 francesae 50: 18 francesca 50: 16, 18 riograndensis 38: 43; 48: 92 rowelli 48: 92; 53: 67 texana 48: 91-2, 113-4 Cochlitoma 59: 116, 118 crawfordi 44: 104 zebra fulgurata 35: 61 zebra obesa 35: 61 Cochlodesma leanum 56: 61 Cochlodina 36: 31; 59: 116, 118; 60: 59 -- also as subgenus of Helix Cochlogena 36: 32 Cochlohydra 36: 31 Cochlostyla 46: 71; 59: 116, 119-20 (Corasia) physalis 57: 18 (Corasia) puella subpuella 57: 18 (Calocochlea) tukanensis 57: 18 cockerelli, Anadenulus 57: 109, 114 cockerelli, Ashmunella 40: 5 cockerelli, Conulinus 46: 101, pi. 6 cockerelli. Discus, see D. shimekii c. cockerelli, Gonyodiscus 40: 117 cockerelli, Holospira 41: 94 cockerelli, Lymnaea, see L. bulimoides c. cocolitoris, Teinostoma 59: 2, 8, pi. 1 cocosensis, Pecten 45: 65 cocosensis, Phos 58: 27 Codakia 58: 39 bella 60: 56 galapagana 37: 128 interrupta 60: 56 orbicularis 35: 121; 39: 83; 52: 28 orbiculata 37: 54; 39: 83; 58: 58 punctata 60: 57 tigrina 38: 61; 60: 57 Codokia costata 49: 118 orbicularis 49: 118 orbiculata 49: 118 codonensis, Helicostyla, see H. leopardus c. Coecum (see also Caecum) brasilicum 46: 121 cooperi 46: 121 dux 46: 121 floridanum 46: 121 nitidum 46: 122 Coelocentrum 40: 65; 53: 27; 56: 91, 144 (Ptychocentrum) bourgeoisae 53: 27, pi. 7; 56: 91, 114, pi. 7 filicosta 55: 105 insulare 46: 110 (Ptychocentrum) marianum 56: 144 vanduzeei 46: 1 10 coerulans, Urocoptis 55: 70 coerulescens, Acanthodoris 39: 50 coerulescens. Patella 37: 47 coerulescens, Terebra 37: 62 coffeus, Melampus 38: 61; 39: 84 coffeus gundlachi, Melampus 37: 53-4 cognata. Helix 44: 140 cognatum, Spirostemma 49: 57 cognatus, Polydon*es, see P. jamaicensis c. cohongoronta, Lampsilis, see L. ovata c. and L. ventricosus c. Coilostele 40: 64 138 THE NAUTILUS Colus cokeri. Aligena 55: 49 Cokeria southalli 41: 92 CoUonia radiata 59: 77 Colobostylus 48: 61," 65 -- also as subgenus of Choanopoma caynianicola 56: 3 rosenbergianus 56: 3 colombeliana, Assiminea 54: 120-1 colombiensis, Anodontites 43: 128-9; 45: 16 colombiensis, Assiminea 54: 120 colombiensis, Ekadanta 53: 68 colorata, Rhachis, see R. niageni c. coloradense, Pisidium 37: 17, 19 coloradensis, Ancylus 44: 31 coloradensis basidens. Vertigo 40: 113; 42: 124; 43: 134; 44: 9-10 coloradoense. Fluminicola 53: 125-6 coloradoensis, Proptera 56: 144 coloradoensis, Sonorella 35: 48 colpoicus, Fusinus 43: 135 Colubraria distortus 60: 55 lanceolata 52: 28 colubrinus, Limax, see L. flavus c. columba, Anguispira, see A. cumber- landiana c. Columbarium 58: 107 Columbella 38: 57-8; 45: 76, 108 aurantiaca 36: 18 avara 35: 88; 39: 85 (Anachis) avara similis 38: 50 (Alia) carinata 37: 42 fulgurans 60: 56 fuscata 37: 124; 52: 44 gausapata 36: 18 (Nitidella) gouldii 38: 27 (Anachis) guatemalensis 45: 143 (Alia) hypodra 37: 42 labiosa 45: 76 livescens 55: 2 lunata 35: 88; 38: 50 lyrata 45: 52 major 37: 124; 52: 44 mercatoria 38: 61; 39: 85; 58: 61 (Alia) moleculina 36: 121 orphia 36: 121 pardalina 60: 56 paytensis 37: 124 punctata 60: 56 reevei 58: 100 rugosa 45: 74, 76 similis, see avara s. strombiformis 37: 124 terpsichore 45: 52 (Anachis) tessellata 45: 143 tuberosa 51: 104 turturina 55: 2 urania 36: 121 varians 36: 121; 55: 2 versicolor 60: 56 zebra 35: 84; 58: 122 columbella. Erato 37: 42 Columbiana, Amphissa 44: 93; 50: 47 Columbiana, Fluminicola 48: 92-3; 53: 125 Columbiana, Mesodon 53: 58 Columbiana depressa, Mesodon 49: 134 Columbiana, Physa 49: 85-6, pi. 7 -- see also P. ampullacea c. Columbiana, Polygyra 35: 37-8; 36: 37, 106; 38: 28, 122, 124; 41: 143; 43: 142; 46: 127-8; 47: 15; 53: 133 Columbiana armigera, Polygyra 53: 59 Columbiana depressa, Polygyra 49: 134 Columbiana megasoma, Polygyra 44: 101-2; 53: 56, 58-9 Columbiana oria, Polygyra 47: 15-6 Columbiana pilosa, Polygyra 41: 143; 44: 101-2; 48: 47; 49: 134 Columbiana shasta, Polygyra 35: 37, 39, pi. 2 Columbiana, Vertigo 36: 38; 47: 112 columbianus, Ariolimax 50: 136; 55: 99, 101; 56: 96-7; 58: 107 columbianus maculatus, Ariolimax 40: 76 columbianum, Pisidium 48: 48 columbiensis, Chaetopleura 58: 100 columbiensis, Chione (Timoclea) 37: 129 columbiensis, Goniobasis 50: 82, 84 columbiensis, Ostrea 37: 127 columbina, Acanthodoris 39: 50, 60, 94, 100-2, pis. 2, 3 Columella 44: 113 alticola 37: 79; 38: 123; 40: 54; 44: 114; 46: 128; 53: 128. 133; 55: 143 edentula 38: 123; 40: 113; 41: 34, 40; 42: 14; 43: 134; 47: 139; 48: 59; 50: 98; 53: 47, 64, 128 hasta 60: 21 tridentata 60: 20-1, pi. 3 columella, Lymnaea (Pseudosuccinea) 37: 34; 45: 58; 46: 139; 54: 6; 56: 132; 58: 11 columella, Melania 36: 117, 119 columella, Pseudosuccinea 37: 30; 40: 50; 47: 16; 48: 59 columella chalybea, Pseudosuccinea 37: 30 columellaris, Odontostomus (Spixia) 54: 94-5 columellaris, Thais 46: 45 columellaris, Olivella 37: 122-3; 45: 75-6 Columna haydeniana 44: 33 vermicula 44: 33 columna, Cerithiopsis 36: 18 columna, Cerithium 55: 2 columna, Chondropoma 48: 66 columna, Urocoptis, see U. brevis c. Columplica 46: 72; 59: 121 uniplicata 59: 121 Colus 45: 108; 54: 3 (Aulacofusus) georgianus 51: 125 (Latisipho) hypolispus 37: 35 islandicus 39: 135 (Aulacofusus) lividus 40: 21 pygmaeus 35: 32, 88; 40: 21 severinus 60: 93 stimpsoni 35: 30; 42: 39; 56: 59, 141; 57: 67 139 Colus INDEX TO stinipsonii 35: 32, 88; 39: 135 stimpsonii brevis 40: 21 colymbus, Pteria 35: 99; 49: 117; 58: 57 comalensis, Goniobasis 42: 28, 32 comalensis fontinalis, Goniobasis 42: 32 comes, Amphidromus 37: 85, 88 comicolense, Pupisoma 41: 144 communis, Astarte 59: 108 communis, Janthina 35: 136 commutanda, Helix 37: 135 comorensis, Vaginula 39: 14-5 Comoropeas 48: 84; 58: 85, 89 compacta, Alvania 50: 48 compacta, Anculosa 41: 58 compacta, Bivonia 50: 48 compacta, Cipangopaludina 56: 127 compacta. Lacuna 38: 16 -- see also L. solidula c. compacta, Lithasia 41: 58 compacta, Melania 41: 58 compacta, Psammotaea 58: 99 compactus, Viviparus, see V. contectoides c compar, Geomitra 35: 13 complanata, Lasmigona 36: 97; 39: 90, 122; 44: 90 complanata, Symphynota 36: 97; 44: 90 complanata katharinae, Lasmigona 46: 68 complanata, Polita, see P. cellaria c. complanata, Polygyra, see P. tridentata c. complanatus, Ancylus 37: 13, 16 complanatus, Elliptio 37: 95; 40: 91; 43: 88; 44: 69; 46: 138; 49: 80; 52: 126; 54: 52; 59: 27, 29, 110 complanatus, Unio 36: 44; 37: 29, 96; 52: 128 complicatus, Petaloconchus 40: 77 compressa, Lasmigona 36: 97 compressa, Myrtaea 49: 118 compressa. Patella 41: 112 compressa, Symphynota 36: 97; 43: 90-1 compressum, Pisidium 35: 112, 115-6; 36: 40; 37: 18, 21; 38:10; 40: 26, 50, 56, 62; 41: 119; 42: 24-5, 120-1; 44: 110; 47: 26; 48: 48; 52: 15, 131; 56: 53; 58: 51 compressum contrarium, Pisidium 58: 51 compressum coosaense, Pisidium 58: 51 compressus, Unio 36: 43 compsa, Mitra 51: 90 compta, Alvania 50: 50 compta, Chione 37: 129 compta, Phasianella 36: 34 compta pulloides, Phasianella 36: 18 compta, Tricolia 50: 49-50 Comptopallium 58: 83 pauciplicatum 58: 53 radula 58: 53 spiceri 58: 52, pi. 2 comptus, Conus 52: 44; 57: 4 comptus patuloides, Lepidopleurus 58: 100 cona, Acmaea 58: 92, 144 conanti, Helisoma 58: 32 conasaugaensis, Strophitus 36: 130-2 concamerata, Pholadidea, see P. penita c. concava, Circinaria 35: 42; 40: 117; 43: 67 concava. Helix 41: 124 concava, Limacella 35: 79 concava, Terebra 58: 62 concava, Vorticifex, see V. tryoni c. concavum, Haplotrema 39: 80: 44: 17, 129, 142: 45: 139; 46: 58. 59. 91; 48: 21, 57. 80; 49: 100; 50: 121; 51: 56. 58-9; 53: 47; 54: 88-9. 132; 55: 7. 14-5, 96; 56: 71; 57: 132, 136; 58: 25-6, 127-8; 59: 28, 90-1; 60: 5 concavum minus, Haplotrema 44: 142 concavum, Sinum 37: 126 concentrica, Dosinia 54: 21 concentrica, Lepeta 38: 27 concentrica, Leptinaria, see L. lamel- lata c. concentrica, Nucala 51; 48 concentricus, Ancylus 37: 12 concentricus, Pecten, see P. irradians c. concentricus borealis, Pecten 38: 114 concestator, Micromya, see M. lienosa c. Conchocela disjuncta 41: 130 conchyliophora, Xenophora 52: 28 concinna, Acmaea 49: 2 concinna, Anoma, see A. levis c. concinna, Melania 36: 119 concinna, Oliva 42: 9 concinna, Pitar 47: 47 concinna, Pitaria 37: 129 concinna, Sulcocypraea 40: 18 concinnula. Vertigo 37: 79; 44: 114; 59: 122 concinnulum, Pisidium 43: 60; 47: 2; 48: 48; 55: 143 — see also P. subrotundum c. concinnum, Ovulum 40: 18 concinnum, Sphaerium 57: 95 concisus, Microceramus 56: 6 concolor, Austroselenites 54: pi. 9 concolor, Austroselenites (Zophos) 54: 132-3, 135-6 concolor. Helix 44: 100 -- see also H. haemastoma c. concolor, Limax, see L. maximus c. concolor, Strepoma 43: 2 concordialis, Succinea 47: 21; 49: 6 concursus, Helix, see H. dupetithouarsi c. Condropoma 45: 26 Condylocardia 60: 6 floridensis 6U: 6-7, pi. 1 panamensis 60: 7 conferta, Euglandina 55: 57 confertestriatus, Spiraxis 53: 50-1 conformis, Streptostyla, see S. strepto- styla c. confragosa. Alasmodonta 51: 49-50 confragosus, Arcidens 35: 17; 36: 97; 39: 90: 56: 144 confusa, Paludestrina 36: 108 confusa, Valvata, see V. tricarinata c. confusus, Philomycus 38: 80 140 THE NAUTILUS Conulinus confusus, Planorbis 37: 36 Congeria leucopheata 43: 34; 50: 143 congregata, Chama 51: 73, 75-6, 78; 56; 117, 120, 123, pi. 12; 58: 58 conlca, Amalthea 60: 55 conica, Creseis 47: 54-5 conica, Eutrochatella 40: 89 conica, Melania 43: 10; 54: 65 conica, Mitra 45: 55 conica, Pirenella 56: 28-9 conicum, Pisidium 40: 26 connasaugaensis, Margaritana 36: 131 connectans, Sagda (Parahelix) 48: 138; 49: 53 connectans, catadupae, Sagda (Parahelix) 48: 138, pi. 9; 49: 53 connellyi, Callistochiton 51: 25-6. pi. 2; 56: 43; 59: 104 ConnoUya 58: 85 camerunensis 58: 85 Conoelix lineatus 45: 55 conoidea, Cochlicella 59: 117 conoidea. Helix 59: 118 conoidea, Melanella 58: 60 conoidea, Vitrina 42: 138-9 conoides, Euconulus 55: 35-6 conoideus, Rectartemon 41: 127 conradi. Donax 37: 84; 40: 52 conradi, Thracia 39; 29 conradii, Donax 37: 82 conradicus, Medionidus 37: 58-60, 99", 100 conradina, Cancellaria 52: 27 conradti, Vaginina 39: 14 consanguinea, Alcadia 48; 12 consanguinea, Melania 43; 7 consanguinea, Mitra 36; 122 consanguinea, Pleurodonte, see P. in- valida c. consanguinea, Olivella 40: 142 consolidata. Doryssa 57; 48, 51 consors, Cardium 46; 109; 52; 44 conspectum. Punctum 37; 79; 38: 124; 46: 128; 48; 47; 50: 88; 53; 63 conspersa, Littorina 46; 45; 52; 45 conspersula, Cepolis 49: 56 conspersula fuscocincta, Cepolis 49; 56 conspersula negrilensis, Cepolis 49: 56 conspersula negrilensis, Cepolis (Dia- leuca) 48: 139 conspersula platystyla Cepolis (Dia- leuca) 48; 139 conspersula, Dialeuca 56: pi. 10 conspersula, Dialeuca (Leptoloma) 56: 89 conspersula fuscocincta, Dialeuca (Lepto- loma) 56: 82, 89 conspicua, Maugerella 58: 101 constricta, Lampsilis 42: 141 constricta, Macoma 37: 54; 43; 35; 54; 21; 58: 59 constrictum, Caecum 47; 112 constrictum, Meioceras 46; 122, pi. 6; 47; 112 constrictus, Distortio 37: 124 constrictus, Somatogyrus 58: 9 contabulata, Anabathron 52; 111 contectoides, Viviparus 36; 105; 42: 125, 129; 46: 100, 106, 138; 47: 18, 20, 60; 50; 18-9; 54: 141; 55: 84-6, 91, 116-8; 58: 3; 59; 27, 110 contectoides compactus. Viviparus 55; 86 contectoides goodrichi, Viviparus 47; 19, pi. 3; 55; 85, 91 contectoides impolitus, Viviparus 47; 20; 55; 85 contectoides limi, Viviparus 47: 20; 55; 86 contectus, Viviparus 56: 125 contorta, Calyptraea 39: 9-11 contorta, Strepsidura 40; 69 contortum, Pisidium 54: 144; 57; 46 contortuplicata, Polygyra 62; 23 contortus, Galerus 39: 9 contortus, Planorbis 40; 69; 41: 41; 52: 58 contracostae, Helminthoglypta 40; 124- 5; 54; 125 contracta, Ancylus, see A. moricandi c. contracta, Corbula 36: 60; 52: 28; 55: 142; 56: 142; 58; 59 contracta, Engina 37; 123 contracta, Gastrocopta 38: 42; 39: 12; 40: 16, 47-8; 41; 52; 42: 66; 43: 43-4, 68, 118-9; 44; 17, 45, 88; 45: 116; 46; 58; 47; 16-7; 50: 98, 121; 51: 57, 106; 53: 47, 88; 58; 128; 59; 28 contracta peninsularis, Gastrocopta 37; 65-9; 42; 20 contracta, Lymnaea 54: 121-2: 58; 66; 60: 35 contracta, Ochthephila, see O. attrita c. contractum, Musculium 58< 49 contraria, Neptunea 56: 69 contrarium, Busycon 53: 26; 58; 62 -- see also B. perversum c. contrarium, Pisidium, see P. compres- sum c. contrarius, Fulgur 53; 26 contrarius, Fusus. see F. antiquus c. controversa, Basilitrona 57; 25-6 controversa, Luria 57; 26 contusus, Donax 40; 52-3 contraryensis, Quadrula. see Q. qua- drula c. conula, Helix 50: 70 conula. Microcystis 41; 32 conularis, Euglandina, see E. Candida c. Conulinus 46: 101-2 arenicola 46: 102 carinifer 46: 102 cockerelli, 46: 101. pi. 6 drakensburgensis 46: 102 maritzburgensis 46; 102 141 Conulinus INDEX TO mcbeanianus 46: 102 natalensis 46: 102 spadiceus 46: 102 conuloides, Helicina 41: 22 Conus 35: 62, 83; 44: 104; 45: 79, 81; 50: 103-4; 52: 43; 53: 40; 55: 43; 57: 72, 106; 58: 120; 59: 74-5, 97, 99; 60: 1 abbreviatus 35: 84; 36: 121; 55: 2 admiralis 37: 45-6 agassizi 45: 106 amaranthus 37: 46 ammiralis 37: 46 archon 57: 4 aulicus 49: 41; 57: 72 aurora 41: 43-4 beckeri 41: 44-5 bullatus 37: 46 caffer 41: 44-5 californicus 37: 41; 47: 52; 50: 47 capitaneus 37: 46; 60: 56 cardinalis, see regius c. catus 36: 121 ceratus 37: 47 ceylonensis nanus 60: 56 ceylonensis pusillus 35: 84; 60: 56 cingulum 55: 2 cipmannianus 37: 47 citrinus 58: 38 clavus dactylosus 55: 2 comptus 52: 44; 57: 4 coronatus 60: 56 cumingi 51: 3-4 cylindraceus 55: 2 dactylosus, see clavus d. dalli 46: 45 ebraeus 60: 56 echinulatus 55: 43-4 fergusoni 46: 74 flavidus 55: 2 floridanus 37: 55; 39: 84; 58: 62 fulvus 41: 44-5 geographus 49: 41; 57: 72 generalis 36: 121; 37: 48 gladiator 52: 44; 57: 4 glans 60: 56 gloria-maris 37: 72; 44: 105 hebraeus 35: 84; 36: 121 imperialis 37: 48 interruptus 48: 4 lavendulus 41: 44-5 literatus millepunctatus 55: 2 litteratorius 37: 49 lividus 35: 84; 36; 121; 55: 2 loveni 41: 44-5 lucidus 53: 40 mahogani 45: 79; 57: 4 marmoreus 36: 121; 49: 41; 57: 72; 60: 56 melvilli 53: 40, pi. 8 miliaris 60: 56 mindanus 45: 106 monachus 37: 49 monarchus 60: 56 monilifer 37: 123 mus 38: 61; 50: 103-4; 53: 38 nanus 55: 2 -- see also C. ceylonensis n. nebulosus 53: 38 nussatella 36; 121; 55: 2 nux 52: 45; 57: 4 omaria 36: 121 palma 37: 50 pealii 37: 55 perplexus 57: 4 princeps 52: 45; 57: 4 proteus '37: 55; 38: 94; 39: 84 pulicarius 36: 121 puncticulatus 52: 45 purpurascens 37: 123; 52: 45; 57: 4 pusillus, see ceylonensis p. quercinus 36: 121 rattus 41: 44; 60: 56 regius 58: 38; 60: 1 regius cardinalis 58: 38 regularis 46: 110; 52: 45; 57: 4 rosaceus 41: 43-4 ruber 37: 51 scansorius 37: 51 secutor 41: 44-5 signae 51: 3 sozoni 56: 13 sponsalis 60: 56 spurius 37: 51 stercus-muscarum 60: 56 striatus 36: 121; 55: 2; 57: 72; 60: 56 succinctus 41: 44-5 terebra 60: 56 textile 36: 121; 49: 41; 57: 72 tiaratus 46: 45 tinianus 41: 44-5 tulipa 49: 41; 57: 72 unicolor 37: 52 vanhyningi, see verrucosus v. verrucosus 39: 84; 49: 136, 139; 55: 44; 57; 105-6 verrucosus vanhyningi 57: 106 virgatus 57: 4 vitulinus 55: 2; 60: 56 waccamawensis 44: 105 woolseyi 60: 1, pi. 1 conus, Acmaea 58: 144 conus, Geotrochus 49: 67 conus. Helix 49: 67 conus, Trochomorpha 49: 67 convallis, Euglandina, see E. saxatilis c. conventus, Pisidium 52: 83 convexa, Callocardia 56: 61 convexa, Crepidula 38: 61; 39: 39; 41: 15; 49: 37-8; 50: 48, 50; 54: 127 -- see also C. glauca c. convexa glauca, Crepidula 49: 37 convexa, Helicina 37: 33 convexa. Odostomia (Besla) 55: 122 convexa. Pleurodonta, see P. anoniala c. convexus, Pecten 50: 26 convoluta, Murex 37: 47 142 THE NAUTILUS Cornutum cookei. Diplodontites 43: 129; 45: 18 cookei. Endodonta (Thauniatodon) 47; 58 cookei, Microphysula 43: 142 cookei. Zonitoides 36; 38 cookiana. Sagda 48: 136. 138; 49: 54 cookiana. Siphonaria 59: 108 Cooperella 55; 113 subdiaphana 36: 34; 37; 41; 55: 113 cooperensis, Epitonium 45: pi. 1 cooperensis, Epitonium (Asperoscala) 45: 8 cooperi, Alectrion 36: 34; 37: 41 cooperi, Caecum 58: 61 cooperi, Cancellaria 60; 90, 93 cooperi, Coecum 46; 121 cooperi, Epitonium 44: 104; 45: 31, 71 cooperi, Fossaria 49; 130 cooperi. Helix 49; 69; 50: 99 cooperi, Ischnochiton 46: 124 cooperi acutior, Ischnochiton 58: 101 cooperi, Menetus 54: 97 cooperi, Nassarius (Schizopyga) 50; 47 cooperi, Oreohelix 35: 15; 41: 20, 88; 43: 55-6; 44: 102, 114; 47: 2-3; 49: 69; 54: 30 -- see also O. strigosa c. cooperi maxima, Oreohelix 47: 1 cooperi obscura, Oreohelix 35: 15 cooperi, Patula 43: 70 cooperiana, Ficopsis 40; 144 coosaense, Pisidium, see P. compressum c. coosaensis, Anculosa 58: 42 coosaensis, Somatogyrus 58: 7-9 coosaensis, Tulotoma 55: 83; 58: 4 copei canadensis, Physa 50: 143-4 cophina. Mitra 36: 122 Cophocara 40: 144 stantoni 40: 144 copium, Cerion, see C. pannosum c. coppingeri. Helix 35; 49 coppingeri, Radiodiscus 52: 116 coquillensis, Goniobasis 48: 131-4 cor, Chama 37: 47 cora, Polinices 37: 125 coracaoana, Microceramus 39: 42 corallina, Ostrea 50: 25 Coralliophila 42: 98; 51; 89 abbreviata 53: 39 hindsii 42: 99 madreporarum 45: 77; 46: 112 neritoidea 55: 2 neritoides 36: 121; 60: 56 oldroydi 42; 98 Coralliophora crenelloides 58: 99 coralloides, Chama 47: 82 Corasia -- subgenus of Cochlostyla and Helicostyla Corbicula 41: 102; 47: 77; 50; 23-4 africana 47: 77 cowlitzensis 50: 23-4 eufalensis 50: 23-4 fluminalis 50: 10 insularis 57: 70 manillensis 44: 105 oliphantensis 47: 77 radiata 47: 77 Corbis civica 50: 91 fimbriata 60: 57 corbis, Cardium 42: 67; 43; 51; 44: 92-3; 47; 102; 54: 53 Corbula 36: 11, 141; 38; 51; 40: 41, 43, 46: 45: 105; 60; 36 acutangula 40; 42 alabamiensis 40: 46 biangulata 40: 44 carabaea 52: 28; 55; 142 contracta 36; 60; 52: 28; 55: 142; 56: 142; 58: 59 cubaniana 52: 28 gallica 40: 42, 45-6 gibba 40: 42-3, 45 guineensis 40; 42 henckeliusi 40: 44 laevigata 40: 42 luteola 36: 34 margaritacea 40; 42 nuciformis 55: 121 nucleus 40: 42 philippii 55: 142 porcina 40: 42 striata 40; 42 sulcata 40: 42-4; 55: 142 swiftiana 52: 28 viminea 40; 45 Corbulomima 60; 36 cordatum, Pleurobema 36; 49; 40: 66 cordatum catillus, Pleurobema 40; 66 cordatum coccinea, Pleurobema 40: 66 cordovana, Averellia 56: 87 cordovana, Averellia (Trichodiscina) 41: 144 cordovana, Euglandina 55; 57, 60 cordovanus, Xanthonyx 56: 38-40 Coretus 44: 100; 47: 77-8 coriacea, Oncis 51: 87 coriaceum, Onchidium 51: 87 coriaceus, Platevindex 51: 88 coricina, Melania 36; 119 Coriocella 52: 124 cornea, Acmaea 58: 94 cornea, Mitra 65: pi. 7 cornea, NeritLna 50: 44-5 corneliae, Giffordius 43: 143 Corneola 40; 29 corneum, Sphearium 40: 29; 52: 79; 57: 94. 96 corneus, Bulimulus 60: 104 corneus, Fusus 35; 88; 51: 49 corneus, Melampus 40: 126 corneus, Pecten 47: 63 croneus, Planorbarius 59: 71 corneus, Planorbis 50: 134; 57: 8 corniculatus, Murex 37: 47 croniculum Orygoceras 37: 98 cornu damae. Helix 37: 47 cornuta, Atys 36: 121; 52: 120 cornutum, Buccinum 37: 47 143 Corolla INDEX TO corolla, Melania 52: 87 corolla, Potamopyrgus 60: 104 Corona perversa 57: 47 corona minor, Hemifusus 47: 119 corona, Melongena 37: 53-4; 39: 85; 40: 100; 47: 38, 57, 117-21, pi. 12; 50: 5, 29 corona altispira, Melongena 47: 119, pi. 12: 52: 28 corona asplnosa, Melongena 47: 120 corona bispinosa, Melongena 47: 120-1, pi. 12 corona bispinosa martiniana. Melongena 47: pi. 12 corona inspinata, Melongena 47: 57, 118, pi. 6 corona minor, Melongena 47: 119, pi. 12 corona perspinosa, Melongena 47: 120, pi. 12 corona subcoronata, Melongena 47: 118- 20, pi. 12 coronata, Aeolidia 36: 91 coronata, Doto 36: 135 coronata, Mitra 36: 122 coronata, Thais 60: 61 coronata brujensis, Thais 60: 61 coronatus, Conus 60: 56 coronatus nicaraguanus, Lyrodes 59: 19 coronatus. Turbo 49: 2 coronilla, Melania 41: 60; 43: 6 coronula, Geomitra 35: 14 coronula, Lucidella 48: 13 corpulenta, Anculosa 35: 10; 46: 39 corpulenta, Anodonta 35; 17-8; 36; 97-8; 39; 91 corpulenta, Anoma, see A. striata c. corpulenta, Nassarius 52: 45 corpulenta. Vertigo, see V. modesta c. corpulentum, Helisoma 42: 95, 131-2, 134; 46: 6-8; 58: 32 corpulentum multicostatum, Helisoma 46: 7-9 corpulentum vermilionensis, Helisoma 42: 131-2 corpulentum, Sphaerium, see S. striati- num c. corpulentus, Placostylus 42: 74 corpulentus, Planorbis 39: 125; 42: 17; 46; 6; 47: 87-8; 49; 85-6 correcta, Goniobasis, see G. livescens c. corrugata, Acteonia 36; 135 corrugata, Biforina 36: 121 corrugata, Chama 37: 128; 58: 96 corrugata, Haliotis 36: 18; 60: 92 corrugata. Helix 35: 102; 52: 78 corrugata, Hyria 39; 2 corrugata, Melania 36: 118-9 corrugata, Oreohelix, see O. haydeni c. corrugata. Parapholyx, see P. packardi c. corrugata, Poteria 48: 64. 67. 86-7 corrugata parva. Poteria 48: 87 corrugata striosa. Poteria 48: 87 corrugata, Pseudochama 47: 84 corrugata, Semele 37: 129 corrugatior, Poteria 48: 86 -- see also P. varians c. corrugatum, Cyclostoma 56: 136 corrugatus, Ischnochiton 58: 101 corrugatus, Musculus 35: 31 cortex, Amphiperas 37: 47 corticaria, Gastrocopta 37: 66; 40: 16, 47; 42: 20; 50: 98; 53; 88; 58: 128 corticaria, Helix 35: 49 corvinus, Pachychilus 44: 85 corvunculus, Unio 37: 100-1 Coryda 56: 82, 90 Corynadenia 53: 141 Coryphella longicaudata 36: 91 pellucida 49; 65 rufibranchialis 49; 65 coryphodontis, Gastrodonta 50; 128 cosibensis, Pecten 50: 25 cosmia, Alvania 37: 43; 53: 31 cosmia, Cerithiopsis (Cerithiopsidella) 50: 48, 50 Cosmomenus -- subgenus of Euglandina costaricensis, Radiodiscus, see R. mille- costatus c. costata, Amblema 36: 48; 39: 88; 40: 66; 44: 130; 49: 81; 59: 110 costata, Anculosa 35: 10; 46: 39 costata, Anguispira, see A. alternata c, costata, Angulyagra 56: 128 costata. Barnea 37: 56; 38: 94; 42: 83; 43: 35; 54; 21; 56: 140-1; 58; 60; 59: 13 costata, Cerithidea 56: 21-2, 30 costata beattyi, Cerithidea 56: 21 costata turrita, Cerithidea 56: 21 costata, Codokia 49: 118 costata, Cuma 46: 110 costata, Eutrochatella (Excavata) 48: 63 costata, Helicina 41; 22 costata, Lasmigona 36: 97; 40; 66; 44; 90, 130; 59: 110 costata eriganensis, Lasmigona 35: 133 costata, Melania 43: 15-6 costata, Parapholyx, see P. effusa c. costata, Pholas 41: 14; 42: 83; 43: 64 costata, Physa 42: 81 costata, Quadrula 41: 92 costata, Siliqua 35; 32; 56: 61, 142; 58; 137, 140; 59: 97 costata, Symphynota 36: 97; 44: 90 costata, Tudora 37; 93-4 costata, Vallonia 49: 57-8; 42: 14, 135; 43: 43, 80; 44: 44; 47: 139; 50; 121; 51: 57, 63, 140; 52: 15. 96; 53; 77. 88; 57: 131-2 costata montana. Vallonia 37: 79; 57: 131 costatum. Calliostoma 50: 49; 51: 103 costatum caeruleum, Calliostoma 50: 49 costatum pictum. Calliostoma 50: 49 costatum. Cerithium 56: 30 costatum. Pisidium 37; 22; 59; 25 costatus. Anculotus 43: 16 costatus, Spiraxis (Pseudosubulina) 52: 133-4; 53; 94, pi. 5 144 THE NAUTILUS Crenatus costatus, Solecurtus 51: 48 costatus, Strombiformis 56: 20-1 costatus, Strombus 58: 37; 60: 46-8, pi. 6 Costavarix 49: 22; 55: 26 -- also as subgenus of Varicella costellata, Heliciella 40: 134 costellata, Perna 40: 81 costifera, Goniobasis 35: 2 costigera, Helix, see H. alternata c. costulata, Brachypodella 49: 58 costulata, Brachypodella (Geoscala) 48: 139 costulata savlamari, Brachypodella 48: pi. 8; 49: 58 costulata savlamari, Brachypodella (Geo- scala) 48: 13*9 costulata glabra, Molleria 60: 70 costulata, Monocondylaea 45: 55-7 costulata, Unio 45: 55 costulata. Varicella 49: 25 costulata pallidula. Varicella 49: 25 costulatum, Epitonium 35: 32 costatus, Planorbis 60: 70 costulosa, Atys 52: 120 costulosa. Varicella 49: 23 costulosus. Spiraxis 53: 11 couesii, Viviparus 44: 36 couleensis, Stagnicola 42: 120, 122; 47: 31 coulteri, Euglandina 44: 141 couperii, Goniobasis 42: 29 Couthouyella striatula 35: 87; 39: 132 couthouyi.Adniete38:25; 40: 21; 51: 116 couthouyi gracilior, Admete 51: 101 cowlitzensis, Corbicula 50: 23-4 coxi, Bulimus (?Borus) 46: 68-9 coxi, Diplomorpha 46: 68-9, pi. 2 coxi, Ostrea 59: 40-1 Coxia 39: 33 coxiana, Placostylus (Diplomorpha) 46: 68-9 Coxiella 38: 68 cracherodii, Haliotis 37: 43; 41: 35; 50: 49; 60: 92 cracherodii holzneri, Haliotis 41: 35 cracherodii imperforata, Haliotis 41: 35 cracilenta. Terebra 58: 28 cranioides. Hipponix 53: 22 crassa, Anguispira. see A. alternata c. crassa, Eurycaelon 45: 35 crassa. Margaritana 36: 42-3 crassa, Physa, see P. sayi c. crassa, Poteria 48: 86 crassa. Purpura 45: 75 crassa, Thais 37: 124; 46: 45 crassa, Fissurella 37: 126 Crassatella 46: 10 Crassatellites 46: 9 altaspissus 46: 10 gibbosus 37: 128; 46: 10 laronus 46: 9-10 subgibbosus 46: 10 undata 46: 109 undulatus 46: 10 crassicornis, Cavolina 35: 74, 76 crassicornis, Hermissenda 35: 74, 76 crassidens, Elliptio 36: 96; 40: 66 crassidens, Unio 36: 96 crassilabris, Cerion 57: 34 crassilabris. Helix 52: 40 crassilabris, Planorbula 42: 133-4; 43: 119; 44: 46, 88 crassilabris. Pupa 57: 34-5 crassilabris, Segmentina 39: 127; 40: 61; 41: 92; 43: 84 Crassinella lunulata parva 46: 123 parva 49: 117 varians 55: 121 Crassispira 48: 43; 53: 79 — also as subgenus of Drillia aterrima 47: 47; 52: 45 bartschi, see tampaensis b. bottae 46: 111, 144 dirce 45: 52 numphaca 46: 110; 47: 47 phasma 54: 49 pluto 48: 4 tampaensis 53: 81 tampaensis bartschi 53: 81 walteri 60: 61 crassiplicata, Tellina 55: 2 crassisquama, Spondylus 37: 128 crassum, Sphaerium 39: 123; 42: 96; 43: 93 -- see also S. sulcatum c. crassus, Hodopoeus 58: 117, pi. 6 crassus, Leptochiton 58: 100 crassus, Phos 58: 27-8 crassus, Somatogyrus 58: 8 crassus, Unio 37: 135 crassus, Viviparus 55: 115 Cratena veronica 50: 142 craticulatus, Latirus 60: 56 crawfordi, Achatina 50: 18 crawfordi, Cochlitoma 44: 104 crebricostata, Venericardia 38: 24 crebricostatum, Epitonium (Nitidiscala) 50: 47 crebricostatus, Beringius 47: 102; 51: 123 crebricostatus undatus, Beringius 46: 126 crebristriatus. Mytilus 37: 3; 40: 81 Cremides -- subgenus of Fissurella cremor, Tellina 37: 47 crenata, Astarte 40: 24 crenata, Harpa 46: 45; 52: 45 crenatella, Goniobasis 42: 32; 58: 45 crenatus, Balanus 51: 10 crenatus, Liguus 40: 90; 37: 69; 48: 69; 50: 71 -- see also L. fasciatus c. crenatus aurantius, Liguus 43: 19-20 crenatus barbouri, Liguus 43: 18-21 crenatus capensis, Liguus 50: 7, 71 crenatus castaneozonatus, Liguus 38: 60 crenatus farnumi, Liguus 43: 19-21 crenatus floridanus, Liguus 43: 20 crenatus lossmanicus, Liguus 48: 69; 50: 71 crenatus luteus, Liguus 43: 20 145 Crenatus INDEX TO crenatus marmoratus, Liguus 35: 20-1; 50: 6 Crenella 54: 4-5 decussata 37: 41; 38: 24; 40: 23 divaricata 53: 22 faba 36: 104; 40: 23; 54: 2 glandula 35: 32; 40: 23 pectinula 40: 23 crenella, Lucina 58: 58 crenella, Phacoides 49: 118 crenelliodes, Coralliophora 58: 99 crenifera, Leda (Adrana) 37: 126 crenimarginata, Epitonium (Opalia) 37: 42; 52: 10 Crenodonta -- subgenus of Quadrula crenulata, Megathura 37: 43 crenulata, Melanoides 49: 75, 77-9 crenulata, Ostrea 38: 118 crenulata, Pyramidella 58: 60 crenulata, Terebra 36: 123; 55: 2 crenulatum, Buccinum 37: 47 crenulosum, Chondropoma 48: 66 Crepidula 35: 64; 39: 39; 45: 74; 48: 102; 49: 38; 52: 43; 55: 122 aculeata 36: 11; 38: 95; 39: 86; 52: 45, 118; 58: 61 adunca 44: 93; 50: 48; 52: 45 convexa 38: 61; 39: 39; 41: 15; 49: 37-8; 50: 48, 50; 54: 127 -- see also C. glauca c. convexa glauca 49: 37 crepidula 37: 125 dorsata 36: 18 exuviata 50: 48 fornicata 35: 62-3; 36: 11; 37: 55; 38: 50; 39: 39, 86; 40: 68, 102-3; 41: 15; 42: 68; 43: 132; 54: 20, 127; 56: 58, 143; 57: 133; 58: 60, 137-8, 141; 60: 75 glauca 37: 55; 39: 39; 56: 144; 58: 61; 60: 75 glauca convexa 38: 50; 56: 61, 143 -- see also convexa g. incurva 37: 125 (Crepipatella) lingulata 37: 43; 38: 26; 50: 48 nivea 44: 93; 50: 48 nummarius 38: 26 nummarius perforans 56: 42 (lanicus) nummerius 37: 43 onyx 37: 43, 125; 51: 124 perforans, see nummarius p. plana 35: 32; 37: 56; 38: 50, 61; 39: 29, 39, 86; 41: 15; 51: 92; 54: 127; 56: 58. 143; 58: 60; 60: 75 rugosa 36: 34 squama 37: 125 crepidula, Crepidula 37: 125 Crepipatella -- subgenus of Crepidula Creseis acicula 47: 54-5 conica 47: 54-5 virgula 47: 55-6 virgula conica 47: 55-6 cressmani, Gyraulus 55: 130-1, pi. 8 cretaceum, Buccinum 39: 135 cribraria, Acmaea 50: 49 cribraria, Cypraea 52: 2. 105; 57: 85; 58: 131 cribraria, Venericardia 51: 92 crispa, Admete 51: 116 crispata, Anodontites 36: 7; 43: 128-30; 44: 41; 45: 16-7, 19; 47: 74 crispata, Zirphaea 41: 14, 30; 42: 35; 45: 52-3; 56: 143; 58: 60 crispatus salmoneus, Anodontites 53: 54-5, 137 crispula, Urocoptis 45: 88 crista, Armiger 60: 70 crista, Planorbis (Armiger) 38: 2; 40: 55; 41: 85 cristata, Gastrocopta 38: 42; 40: 16; 47: 17; 51: 130; 52: 15; 58: 69 cristata, Ostrea 39: 83 cristata, Tellidora 58: 59 cristatum, Pisidium, see P. lilljeborgii c. cristatus, Krynickillus 35: 79 cristatus, Planorbis 57: 8 cristonensis, Trigonodus 49: 83 crocata, Haminea 60: 56 crocata, Physa 58: 13 croceum, Farcimen 56: 106 croceum, Megalomastoma 56: 106-7; 57: 30 Crocidopoma 36: 15-6; 48: 87 -- also as subgenus of Poteria croninae, Nodularia 36: 5, pi. 1 cronkhitei anthonyi, Pyramidula 37: 97; 39: 124; 40: 58 cronkhitei. Discus 45: 85; 48: 47; 50: 87-8, 117; 53: 63, 131. 133; 54: 29, 32, 96, 117; 55: 143-4; 56: 54; 58: 79 cronkhitei anthonyi. Discus 47: 8; 48: 58, 71; 50: 13, 117; 53: 87, 123; 54: 29; 56: 54; 57: 132 cronkhitei catskillensis. Discus 49: 58; 50: 117; 52: 108; 53: 87; 55: 14; 59: 28, 91 cronkhitei, Gonyodiscus 35: 36; 40: 77, 113; 42: 124; 43: 55, 58, 62, 133; 44: 114; 45: 84, 86; 46: 128 cronkhitei anthonyi, Gonyodiscus 38: 92-3; 40: 53-4, 113; 41: 20; 42: 15. 125; 43: 42- 4, 81, 110, 133; 44: 38. 45, 88; 47: 2; 50: 120; 51: 57, 140 cronkhitei catskillensis, Gonyodiscus 45: 34: 47: 139 cronkhitei, Pyramidula 38: 10. 124 cronkhitei. Patula. see P. ruderata c. crossata. Solariella 40: 140 crosseana, Sayella 53: 44-5 crossei. Holospira 36: 119 crossei. Nanina 40: 134 crotalina. Helminthoglypta 44: 125 croulinensis. Thyasira 40: 24 Crucibulum 41: 76; 52: 43 imbricatum 37: 125; 52: 45 146 THE NAUTILUS Cupraeonitens scutulum 52: 45 spinosum 36: 33; 37: 125; 46: 113: 52: 45 striatum 39: 39; 52: 28; 56: 141; 58: 60 umbrella 52: 45 verrucosum 39: 86 cruenta, Cypraea 50: 78; 51: 2; 57: 23, 83; 58: 131 cruenta, Tellina 49: 140 cruentae, Tellina 49: 140 cruentata, Melania 35: 11; 43: 14 cruentatus, Amphidromus 57: 16 cruciatum, Pisidium 35: 112; 36: 40-1 crucifera, Fissurella, see F. volcano c. Cryptaegis 38: 36 Cryptaxis 35: 101 -- also as sut)genus of Leptaxis forensis 35: 102 leonina 35: 102 nivosa 35: 102 psammophora 35: 102 undata 35: 102 vulcania 35: 102 wollastoni 35: 102 Cryptochiton 39: 47-8, 75; 50: 142 stelleri 38: 28; 39: 47-8; 46: 123; 47: 102; 50: 142 Cryptoconchus 39: 47; 50: 142 porosus 50: 142 Cryptodon bisectus 41: 130 gouldii 51: 9 nuttallii 38: 98, 102 serricatus 58: 99 cryptomphala solida, Retinella 54: 19 cryptomphala, Vitrea 35: 43 Cryptomya 44: 91 californica 36: 34; 37: 41. 130; 38: 27; 43: 50; 44: 92; 56: 43 Cryptonatica -- subgenus of Natica Cryptoplax 39: 48-9 Cryptosoma 43: 51 siamense 43: 52 Cryptostoma 51: 92-3 cryptospira, Teinostoma 59: 2 cryptospira, Velutina 51: 103 crystallina, Lyrodes 52: 87 crystalUna, Tellina 37: 129 crystallina, Vitrea 35: 40 Crystallopsis 38: 36 Ctenopoma bilabiatum 40: 89 cuatotolapamensis, Elliptio, see E. liebmanni c. Cuba, Scaphella (Aurinia) 60: 108 cubaniana, Corbula 52: 28 cubaniana, Transenella 49: 118: 52: 29 cubanum. Astralium 39: 86 cubanus. Circulus 46: 120. pi. 6 cubensis. Cepolis 38: 60; 40: 88; 56: 82 cubensis camoensis. Cepolis 40: 88 cubensis. Eupera 52: 131; 58: 50 cubensis, Hebetancylus 46: 116, pi. 6 cubensis, Lymnaea 41: 120 cubensis. Physa 39: 43; 41: 54 ; 52: 130 cubensis, Streptostyla 55: 53 cubicoides, Melania 38: 44 Cucullaea 42: 114 antrosa 42: 114 vulgaris 42: 114 cucuUata, Puncturella 38: 27 cucumariae, Diacolax 60: 108 cucumerina, Mitra 55: 2 culcitella, Acteocina 35: 45-7, 96, 122; 37: 41; 38: 25; 42: 37-8; 44: 93 culcitella intermedia, Acteocina 42: 38 culicoides, Ancylus 37: 12 Culmenella 40: 121; 44: 80 -- also as subgenus of Camptoceras hirasei 44: 80 culminatus, Donax 37: 82; 58: 99 culminea, Paludestrina 38: 103 cultratum, Drepanotrema 58: 32; 59: 70 cultratum labrosum. Drepanotrema 47: 17 cultratus, Planorbis 40: 16-7 Cuma costata 46: 110 cumberlandia. Turritella 50: 18 cumberlandiana alabama, Anguispira 52: 12 cumberlandiana columba, Anguispira 52: 12 cumberlandiana. Glyphyalinia 42: 90 cumberlandiana, Vitrea 43: 106 cumingi, Conus 51: 3-4 cumingi, Lampania 40: 32 Cumingia lamellosa 37: 41, 129; 44: 92; 56: 42 mutica 37: 129 tellinoides 53: 19-20. pi. 6; 58: 59 tellinoides vanhyningi 53: 19 cumingiana, Cancellaria 37: 123 cumingiana, Navicella 49: 79 cumingianus, Ancylus 35: 6-7; 38: 83-4; 39: 45-7, 115 cumingii, Ampullaria 49: 104 cumingii, Cypraea 57: 83 cumingii, Discina 58: 100 cumingii, Euglandina 55: 52, 54 cumingii, Lyria (Enaeta) 46: 110, 115 cumingii, Placunanomia 37: 128 cumingsi, Oreohelix, see O. yavapai c. cunaguae, Opisthosiphon 42: 98, pi. 5; 47: 132 cuneata, Entodesma 49: 19 cuneata Rangia 39: 12; 49: 132-4; 60: 34 cuneata rostrata, Rangia 60: 34 cuneatus Gnathodon 43: 35 cuneatus, Pecten 49: 27-8 cuneiformis, Gastrochaena 58: 60 cuneiformis, Martesia 58: 60 cuneimeris, Anomalocardia 37: 54 Cuneocorbula 40: 44. 46 cuprea. Mesomphix 44: 129; 48: 36. 58; 54: 88-9 cuprea, Omphalina 39: 28, 80; 40: 48; 44: 17; 53: 87; 58: 127-8 cuprea polita, Omphalina 35: 41, 43 cuprea, Placiphora 58: 102 cupraeonitens, Physa 38: 105 147 Cupreus INDEX TO cupreus, Mesomphix 55: 14-5; 57: 137. 140; 59: 89, 91 curreyana, Goniobasis 40: 8, 66 currierianus, Somatogyrus 41: 24, 26 curta, Marginella 37: 123 curta, Thracia 38; 24 Curticaulis 39: 14, 17; 44: 136-7 curtum, Farcimen 56: 107 curtum, Pleurocera 42: 144; 43: 141; 53: 74: 56: 132 curtum roanense, Pleurocera 42: 144 curvicostata, Melania 42: 29-30 curvilabris, Melania 41: 60; 43: 6 curvilabris. Varicella 49: 22, 24; 55: 25 curvirostris, Murex 54: 45 curvirostris, Neptunea 40: 144 Cuspidaria beringensis 38: 2 4 dulcis 55: 121 glacialis 40: 23 pectinata 51: 100 pellucida 40: 24 perrostrata 49: 119 planetica 38: 24 cuspidata, Melania 38: 44 cuspidata. Patella 37: 47 cuspidata, Zonitoides, see Z. cerinoidea c. cuspidatus, Acanthochiton 58: 102 cuspidatus, Carcharius 50: 91 Cuthona amoena 55: 80-1 cuvieri, Venericardia 37: 128 cuyama, Helminthoglypta 51: 15: 54: 125, pi. 1 cuyamacensis Helmithoglypta 43: 114; 45: 29; 50: 67, 69; 51: 13; 53: 143; 54: 33 cuyamacensis avus, Helmithoglypta 50: 67-8 cuyamacensis lowei, Helminthoglypta 50: 69; 54: 33 cuyamacensis piutensis, Helmithoglypta 59: 104 cuyamacensis venturensis, Helmithoglypta 45: 29, 50-1; 50: 68; 54: 125 Cyane 36: 14-5 blandiana 36: 84 cyaneum, Buccinum 39: 134 Cyanoplax -- also as subgenus of Trachycardium hartwegii 37: 43 Cvanocyclas 41: 102 Cyathodonta 37: 128; 48: 120 undulata 37: 128 Cyclamastra 45: 126 cyclaminum. Helix 37; 47 Cyclas 60: 27 dubia 35: 105; 59: 86-7 equalis 59: 86 staminea 59: 8b Cyclina 38: 51 CyclineUa tenuis 58: 58 cycloata, Poteria 48: 86 Cyclobakeria 56: 135 Cyclocardia 58: 118 -- also as subgenus of Cardita and Venericardia Cyclocaymania 56: 135 Cyclodoma 44: 139; 49: 103 Cyclodontina 60: 58 inflata 60: 58 (Pantagruelina) labrosa 60: 58-9 pantagruelina 60; 106 Cyclohidalgoa -- subgenus of Aperostoma Cyclomya 47: 74-5 Cyclonaias granifera 36: 48 tuberculata 36: 48; 44: 47 tuberculatus 40: 66 Cyclopecten -- subgenus of Pecten cyclophorella, Vallonia 37: 79; 44: 74, 114; 47: 2; 54: 96, 117; 55; 144; 59; 123 Cyclophorus 37: 91; 55: 40-1; 56: 137; 57: 64 reevei lubanicus 44: 141 scissimargo 55: 41 tomotrema 55: 41 volvulus 37: 91; 56; 137 Cycloprocta 39; 15, 18 Cyclostoma 55; 41; 56; 136; 59; 12 barbata 55; 42 blanchetianum 56: 137 boucardi 36; 15 candeana 37: 90 citharella 55: 42 corrugatum 56; 136 decussata 37: 91 dysoni 36: 15 fimbriatulum 37; 91 floccosum 36; 15 illustre 37: 90 incultum 37; 90 largillierti 37; 91 mexicanum 36; 14-5; 56; 137 musiva 55: 42-3 perplicatum 37; 90 volvulus 56; 137 cyclostoma, Alopia 36: 67 cyclostoma. Helix 35; 12 cyclostoma ischna. Urocoptis 40; 90 cyclostomatiformis. Lioplax 49; 67; 58: 5 Cyclostrema 53; 53; 55: 121; 59; 11, 52-4; 60: 8 bushi 59; 72 cancellata 59; 52-4. 60 cistronium 56; 18 granulum 53; 53; 59: 54-5 interruptum sanibelense 59; 58 (Acrotrema) pontogenes 56 17.pl. 3, 59: 11 sanibelense 53; 53, pi. 8; 59; 58 -- see also C. interruptum s. thomasi 59; 60 turbinum 59: 54 volvulus 57: 64 weberi 59; 56-7 xantusi 55; 122 zacalles 59: 9, 57 148 THE NAUTILUS Cypraoa Cyclostremiscus 59: 81 bartschi 59: 82 jeannae 59: 82, pi. 8 panamensis 59: 81 suppressus 59: 82, pi. 8 Cyclotus 36: 15; 50; 9; 56: 137 biggsi 50; 9 jamaicensis 56: 135, 137 lineatus 56: 137 masbatensis 42; 68 minimus 41: 62 varlegatus 42: 68 Cydlppina -- subgenus of Macoma cygnea, Anodonta 53: 141; 55: 20 Cyliclina 54: 3 alba 35: 32, 96; 51; 9 alba corticata 40: 22 anagogia 36; 121 defuncta 55; 122 occulta 40; 22 oryza 56: 143 Cylichnella alba 38: 27; 40: 22 bidentata 58: 62 cylindracea. Euglandina (Cosmomenus) 55: 60 cylindracea, Lauria 50: 18 cylindraceus, Conus 55: 2 cylindrata, Leptachatina 38; 82 Cylindrella 40; 69-70 coahualensis 50: 136 cylindrus 40: 70 flexuosa 58: 31 jejuna 38: 61 maugeri fusiformis 58; 31 parisiensis 40: 70 poeyana 38: 61 cylindrica, Atys 52: 120; 50: 56 cylindrica, Quadrula 36: 2; 38; 29 cylindrica. Varicella (Sigmataxis) 48: 85, pi. 3; 49: 27 cylindrica, Volvulella 55: 122 Cylindrites brevis 40; 144 Cylindrocaulides 44; 134 Cylindrocaulus 39: 16; 44: 134 cylindrus, Cylindrella 40: 70 cylindrus, Urocoptis 49: 21, 57 cymatias, Latirus 53: 110, pi. 12 Cymatium aquatile 35: 121: 60: 55 bracteatus 36: 121 chlorostoma 55; 2; 60; 55 gibbosum 37: 124; 52: 45 lignarium 37: 124 obscurus 36: 121 pilearis 36: 121 tigrinum 52: 45 tuberosus 36: 121; 58; 122-3 vestitum 46; 45 Cymatoica orientalis 53; 19 orientalis hendersoni 53: 19, pi. 6 Cymatopteryx 59; 105 Cymatosyrinx mighelsi 36: 121 mo.seri 52: 28 tliea carminura 52; 28 cymbiformis, Haminoea 46; 140-1 cymbiu, Voluta 37; 47 Cymbium 50: 18 cymbium, Argonauta 37; 47 cymbium, Voluta 37: 47 cymbula noae, Area 37: 47 Cyphoma 53: 1, 3-4, 72; 56: 109 emarginata 37: 124; 53: 1 gibbosa 50; 103-4; 52: 108; 53; 1-3, 39, pi. 1; 56; 109; 58; 38, 61 intermedia 53; 1, pi. 1; 56; 109, 123, pi. 14 mcgintyi 52; 108; 53; 2-3, pi. 1; 55; 45; 56;" 109 mcgintyi robustior 55: 45, pi. 3 signata 53: 3, pi. 1 Cyphoxis 42: 113-4 cardites 42; 113 lunula 42: 113 pulla 42: 113 venerina 42; 113 vulgaris 42; 114 cyphyus, Plethobasus 36; 49 Cypraea 35: 62; 40; 36, 126; 42; 34, 61; 45; 81; 48: 3; 50; 77, 82; 52: 141; 55: 44; 57; 23-4; 60: 52 alba 40: 130 alba hesitata 40; 130 amoena, see gangranosa a. annae 50; 51-2; 57; 22-3, 27 annettae 37; 124; 46: 113 annulata 50; 78; 57: 83 annulus 38: 91; 40: 142; 51: 2; 52: 6, 103-4; 55; 2; 57: 83-5; 58; 129-30, 133, 144; 60; 55 arabica 52: 3, 6, 104-5: 55: 2; 57: 83; 58: 129-30 arabicula 37: 125; 45; 77, 82: 52: 45 arenosa 50: 77; 51: 2; 52: 104: j7: 23- 4, 83-4 argus 52; 104; 55: 2; 57; 83; 58: 130 armeniaca 40; 130 asellus 52: 104; 57: 83; 5d: 130, 144 aurantia 45: 76; 57; 24 caputanguis 57: 26 caput-serpentis 35: 83-4; 36: 121; 46; 112; 50; 77-8; 51: 2; 52: 5-6, 103-4; 55; 2; 57: 26-7, 83-5; 58; 129-30, 133, 144 carneola 36: 121; 50: 78; 51; 2; 52; 1, 6, 104; 55; 2; 57; 24, 83, 85; 58; 131, 144 carneola propinqua 52; 6 carolinensis 52: 121 carrosa 37; 47 castacensis 40: 144 caurica 52; 104; 55; 2; 57; 83; 58: 131 cervinetta 44: 103; 55; 2, 45 149 Cypraea INDEX TO cervus 52: 2 -- see also exanthema c. childreni 50: 82; 51: 2 cicatrix 37: 47 cicercula 50: 78; 51: 2; 52: 104 circicula tricornis 36: 121; 50: 78 cinerea 53: 38; 58: 38 clandestina 52: 105; 57: 83 .cribraria 52: 2, 105; 57: 85: 58: 131 cruenta 50: 78; 51: 2; 57: 23, 83; 58: 131 cumingii 57: 83 dalli 38: 35 distinguenaa, see turdus d. eosmithi 38: 35 erosa 50: 79; 51: 2; 52: 6, 103-4; 55: 2 errones 52: 104; 57: 83; 58: 131-2, 144 exantiiema 37: 125; 38: 61; 55: 44 exanthema cervus 55: 44 felina 57: 83 fimbriata 50: 79; 51: 2; 52: 104; 55: 2; 57: 23, 84; 58: 131, 144 fimbriata unifasciata 57: 23 (Pustularia) gabbiana 49: 137 (Pustularia) gabbiana loxahatchiensis 49: 137, 139 gangranosa amoena 40: 128 gaskoini 57: 26, 82 gillei 58: 107 globulus 37: 48 goodalli 52: 105 healeyi 38: 35 helvola 35: 50; 36: 121; 50: 79; 51: 2; 52: 6, 10, 104; 55: 2; 57: 83-5; 58: 131, 142 hesitata, see alba h. hirundo 40: 126-7; 52: 104; 58: 144 intermedia 51: 2; 52: 2-3, 6, 104; 57: 25, 83-5 irrorata 51: 3; 57: 8-1 Isabella o6: 121; 44; 103: 50: 79; 51: 3: 52; 6, 104: 55: 2: 57: 25-6, 83-5; 58: 107, 131, 144; 60: 55 Isabella mexicana 46: 112 jensostergaardi 52: 122, ,>1. 9 labrolineata 58: 131 leviatiian 57: 24 leviathan propinqua 57: 24 loxahatcliiensis, see gabbiana 1. lutea 37: 49 lynx 50: 79; 51; 3; 52: 5-6, 103-4: 55: 2; 57: o3-5; 53: 132, 144; 60: 55 maculifera 57: 25 madagascariensis 36: 121: 50: 52, 79; 55: 2 mapija 52: 6, 104: 55: 2; 57: 83 mauritiana 35: 83-4: 40: 80; 50: 79; 51: 3: 52: 6, 103-4: 55: 2; 57: 84-5; 58: 132. 144 mexicana. see isabella m. moneta 46: 44-5; 50: 80; 51: 2-3; 52: 5-6, 103-4: 55: 2; 57: 24, 83-5; 58: 107, 129, 132-3, 144: 59: 106 mus 59: 113 musculus 37: 49 neglecta 40: 127, 129; 58: 132, 144 neglecta reductesignata 40: 126 nigropunctata 37: 125 nucleus 50: 80; 51: 3; 52:. 104 obvellata 52: 103-4 oculata 37: 50 ostergaardi 35: 50; 36: 71; 42: 144; 50: 52, 80; 55: 2 pacifica 35: 50; 36: 71-2 pantherina 40: 129 peasei 36: 122; 50: 80; 57: 26, 82 pilsbryi 52: 120, pi. 9 pisum 37: 50 polita 50: 51-2; 57: 22-3, 27 poraria 50: 80; 51: 3; 52: 103, 105; 57: 83-5; 60: 55 propinqua, see carneola p. and levia- than p. punctulata 50: 80; 51: 3; 52: 105; 57: 82 pyriformis, see turdus p. pyrum 40: 129 quadrimaculata 58: 132 rashleighana 36: 72; 50: 80; 57: 23: 58: 106 reductesignata, see neglecta r. reticulata 35: 83; 36: 122; 50: 81; 51: 3; 52: 3, 7; 57: 25, 85 scurra 50: 81; 51: 3; 52: 104-5; 55: 2; 57; 83-5; 58: 107, 132 semiplota 36: 122; 50: 51-2, 81; 55: 2; 57: 22, 27 smithi 38: 35 spadicea 37: 42; 52: 1, 3-4, 141, pi. 1 spurca .53: 38; 58: 38 stolida 57: 83 sulcidentata 3^: 122; 42: 144: 50: 52, 81; 52: 3; 55: 2; 57: 23-4 talpa 36: 122; 50: 81; 51: 3; 52: 7, 104- 5; 55: 2; 57: 83-5; 58: 132 teres 57: 82-3, 85: 58: 106 tessellata 36: 122; 40: 81; 42: 143-4; 50: 52. 81; 55: 2: 57: 23-4 testudinaria 51: 3; 52: 7, 105; 57: 84-5 tigris 37: 51: 40: 128; 49: 39-41; 50: 82; 51: 3; 52: 5, 7, 104-5; 55: 2; 57: 83-5; 5o: 132; 60: 55 tricornis, see cicercula t. trogiloides 37: 51 tumulosa 37: 51 turdus 40: 127-8 turdus distinguen.la 40: 127-o tur-.us pyriformis 40: 127-8 umbilicata 40: 129-30 unifasciata, see fimbriata u. ventriculus 52: 2. 7. 105; 57: 27, 83-4 verrucosa 37: 52 vinosa 40: 128-9 vitellus 50: 62: 51: 3; 52: 3, 7, 105; 55: 2; 57: 83-5; 58: 132, 144 waikikiensis 57: 23 ziczaciuncula 37: 52 150 THE NAUTILUS Deaniana Cypraecassis 41: 72 Cypraedia 40: 18 Cypraeogemmula 40: 18 Cypraeoliiia pyriformis 38: 26; 42: 1: 50: 47; 51: 103 Cypraeorbis gemmelaroi 38: 106 Cypraeovula 40: 18 capensis 40:18 edentula 40: 18 Cypreolina margaritula 55: 121 cypreophila, Helniinthoglypta 46: 83, 86, pi. 6; 51: 17; 52-; 8 -- see also H. tudiculata c. Cypricardia (Trapezium) californica 40: 81 lyrata 49: 2 Cyprina 45: 31 islandica 35: 30, 32; 56: 140 Cyprogenia irrorata 40: 66 Cyrena carolinensis 51: 94 floridana 37: 54; 38: 94 Cyrenastrum 40: 29; 43: 93 Cyrenoida 37: 98; 45: 69 americana 45: 69 floridana 45: 69 guatemalensis 45: 69 panamensis 45: 69, pi. 3 Cyrenoidea floridana 38: 56, 61 Cyrtodaria siliqua 40: 25; 56: 61 Cyrtotoma 36: 15; 56: 137 mexicanum 36: 14 Cysticopsis 56: 82 Cystiscus politulus 37: 41 cystula, Lacteoluna 56: 9 Cytharella merita 37: 41 Cytherea 51; 93; 60: 71 albaria 51: 93 bella 60: 71 hieroglyphica 40: 81 lioconcha 37: 3 reticulata 60; 57 virginea 35; 134 cytherea, Partula 44: 141 DacryJium vitreum 54: 5 Dactylochlamys 56: 124, 128 dactylosus, Conus, seeC. clavus d. dactylus, Petricola 36: 60; 39: 72; 51: 93; 57: 31-2 Daeaalochila 44: 139; 49: 103; 52; 23 harfordiana 37: 133-4 Jakotense, Sphaerium 57: 95 -- see also sulcatum d. dallesensis, Goniobasis, see G. hemphilli d. dalli, Anachis 45: 143 dalli. Caecum 37: 42 dalli, Chioraera 36: 86-7, 89, 96, 137, pi. 4 dalli, Conus 46: 45 dalli, Cypraea 38: 35 dalli, Euglandina 49: 98; 55: 58 dalli, Fossaria 42: 104 dalli grandis, Fossaria 44: 107; 51: 131 dalli, Haminoea 46: 140 dalli, Latia 38: 143 dalli, Lymnaea 40: 55, 59; 48: 114 dalli, Lyogyrus 47: 149 dalli, Poecilozonites 48: 34 dalli, Prodallia 56: 10, pi. 2 dalli, Rissoina 37: 43 dalli, Sulcocypraea 40: 18 dalliana, Acmaea 46: 112-3 dalliana, Polita 37; 66-9 dalliana roemeri, Polita 38; 42 dalliana, Retinella 42: 20 dalliana, Vitrea 41: 52 Dallimurex 59: 142-3 dama, Olivella 48: 4; 55: 114; 57: 5 damae. Helix, see H. cornu damae danicus, Pecten 36: 59 danieisi, Holospira 40: 4 danieisi, Lymnaea 36: 23-4 danieisi, Valvata 41: 137 Danilia 40; 134 Daphnella 45: 143 fuscoligata 37: 41 sandwichensis 36: 122 Sofia 56: 76 Sofia hyperlissa 56; 76 Daphnobela manti 36: 122 darlingtoni, McLeania 54: 55, 57, pi. 4 darochai, Anodontites, see A. trapesialis d. das-guptai, Pecten, see P. tauroperstriata d. Daudebardiella 40; 4, 68 dautzenbergiana, Urocoptis 40: 40, 74, 90 dautzenbergiana gemmata, Urocoptis 40: 75 davisi, Helisoma, see H. campanulatum d. davisi, Planorbis, see P. campanulatus d. dealbata, Geomitra 35; 13 dealbatus, Bulimulus 47: 4-6; 51: 18; 52: 115; 57; 98 dealbatus, Bulimulus (Orthotomium) 57: 99 dealbatus jonesi, Bulimulus 51: 19, pi. 3 dealbatus liquabilis, Bulimulus 42: 66; 57: 98-9, pi. 9 dealbatus mooreanus, Bulimulus 39: 12; 40: 16; 47: 16, 79; 57: 98-9, pi. 9 dealbatus ozarkensis, Bulimulus 47: 4; 57: 98 dealbatus patriarchus, Bulimulus 57: 98 dealbatus pecosensis, Bulimulus 38: 39, 41 dealbatus ragsdalei, Bulimulus 38: 41; 57: 98-9 dealbatus schiedeanus, Bulimulus 57: 98, pi. 9 deani, Cerion 57: 59-60, pi. 7 deaniana. Alopia 36: 67 151 Debilis INDEX TO debilis, Atys 52: 120 debilis, Cepolis (Euclastaria) 52: 144; 56: 85 . debilis, Cepolis 56: pi. 9 debilis, Sinum 37: 126 debilis, Wanga, see W. scrupea d. decampi, Fossaria, see F. obrussa d. decampi, Lymnaea, seeL. obrussa d. decampi, Melantho 50; 136 decampii, Campeloma 52: 127 decampii, Succinea 41: 136 Decatopecten 50: 26 decemcostata, Neptunea 56: 59: 57: 67 decemcostatus, Chrysodomus 35: 30, 32, 88, pi. 1; 39: 38, 135 decemcostatus, Fusus 35: 88 deceptur, Leptachatina 41: 103 decidiosus, Limneus 51: 93 decipiens kaliuawaensis, Achatinella 43: 131 decipiens, Isclinochiton 49: 43 decipiens, Somatogyrus 58: 9 decisa, Campeloma 44: 69 decisa, Melantho 52: 129 decisa, Paludina 51: 48 decisum, Campeloma 42: 18, 55, 128-9: 43: 85: 44: 46, 89; 48: 110; 52: 127-9: 53: 74-5; 54: 12, 14-7, 53; 56: 131-2; 58: 5; 59: 29 decisum, Sphaerium, see S. sulcatum d. deckerti, Liguus, seeL. fasciatus d. declive, Sphaerium 57: 95 declivis, Planorbis 54: 97 declivis, Unio 36: 127-8; 51: 49 decoUata, Cerithidea 56: 21 decollata, Helix 59: 117 decollata, Rumina 37; 33; 38: 61: 41: 139- 40: 52: 33. 97; 53: 105: 54: 69 decoUatum, Cerithium 56: 20 decoUatus, Murex 56: 20 decolorata. Helix, see H. albida d. decolorata, Vitrea 57: 47 decora, Anodonta, see A. grandis d. decorata, Biforina 36; 121 decorata, Helicostyla 45: 103 decorata albolabiata, Helicostyla 45: 103 decorata liybrida, Helicostyla 4b: 103 decorata jaroensis, Helicostyla 45: 103, pi. 8 decorata malleata, Helicostyla 45: 103 decoratus, Callistochiton 58: 101 decorum, Spnaerium, see S. striatinum d. decumbens, Margaritana 36; 44 decurrens, Megalomastoma, see M. maiii d. decussata. Area 60: 56 decussata, Dela 35: 88 decussata, Bivonia 46: 119 decussata, Crenella 37: 41; 38: 24; 40; 23 decussata, Cyclostoma 37: 91 decussata, Ficus 52: 45 decussata, Lora 35: 88; 40; 21 decussata, Pyrula 37: 122, 124 decussata, Serpula 46: 119 decussata, Ventridens, see V. gularis d. decussatus, Spiraxis (Rectaxis) 53: 10, 15, 92 deflectus, Gyraulus 42; 58, 133, 136; 46: 9: 50: 116; 59; 27, 29 deflectus obliquus, Gyraulus 42: 58, 136; 46: 9; 50: 116 deflectus, Planorbis 36: 24; 37: 30; 40; 61: 42: 17, 58 deflorata, Asaphis 49: 119 deformis, Paludina 56: 125 Defrancia 51; 115-8 pagoda 51; 116-8 viridula 51; 115, 117 defuncta, Cylichna 55: 122 degenerata, Batillaria, seeB. minima d. degeneratum, Cerithium, seeC. septemstriatum d. degneri, Ptychotrema 49; 96, pi. 6 dehiscens, Lima (Mantellum) 37: 41 delator, Murex 37: 47 Delavaya 58; 135 delavayana, Cipangopaludina 56: 127 delavayi, Margarya 56: 128 delectabilis, Urocoptis 42: 80, pi. 5 delectabilis florentiana, Urocoptis 42: 80, pi. 5 delesserti, Glycymeris 47: 85-6 delicata, Euglandina 49: 97 delicatula montivaga, Euglandina (Pro- anieria) 55: 56. 58. 60. pi. 5 delicatula major, Euglandina 55: 58 delicatus, Murex, see M. recurvirostris d. delicatus, Spiraxis 53: 51 deliciosa, Endodonta 41: 128 delmontana, Turbonilla (Pyrgiscus) 50: 100-1 delmontensis, Turbonilla (Pyrgiscus) 50: 100-1 -- see also T. gilli d. delpiiax, Chloritis 50; 53 delphinodonta, Nucula 40; 22 Delphinoidea 55; 121 spiritualis 55; 121 Delphinula cancellata 59; 53 laciniata 60; 55 laxa 51: 46 tuberculosa 59: 56 deltoidea, Thais 38; 62 demersum, Dentalium 40: 142 demesana, Helicostyla 44; 141 demesai, Ampliidromus, see A. versi- color d. demissus. Modiolus 54; 127: 56: 60; 57; 69: 58: 22, 137-8; 60: 75 demissus granosissimus. Modiolus 43: 35 demissus iilicatulus. Modiolus (Bracliydontes) 38: 49: 49; 64: 56: 141; 58: 57 demissus, Zonitoides 48: 57; 50; 120; 51: 57, 59. 106; 52; 97: 55: b 152 THE NAUTILUS Deroceras demissus, Ventridens 46: 59; 47: 149; 53: 86 demolita, Bellamya 56: 126 Dendopecten 50: 26 Dendrochiton semiliratus 49: 42-3 Dendrocochlis 44: 140 dendroica, Partula 37: 114-6, 118 Dendronotus frondosus 35: 30 giganteus 36: 90, 95, pi. 3 dendyi, Pecten 50: 26 denniaoni, Cepolis 56: 82 denotata, Polygyra 48: 57; 53: 86 densa, Melania 41: 61 densecostata, Geomelania, see G. minor d. denselirata, Yunquea 54: 57-8, 62, pi. 4 densestigmata, Poteria 48: 86 densestriata, Valvata 48: 16 -- .see also V . humeralis d. densicostata, Melania 42: 30 densilira^us, Chiton 58: 101 Dentaliuirf'40: 19; 43^110; 56:M44 J agile 39: 131 "w alternatum 40: 19 -annulatum 40: 20 \;boggsi 40: 19-20 '*deniersum 40: 142 ^eboreum 58; 60 ^^lephantinum 60: 57 ^^elephantinoides 37: 47 ^ "^(Antalis) entale stimpsoni 35: 87; 39: V 113 Nentalis 37: 47 " glabrum 46: 122 ^annai 39: 72 ^indianorum 43: 109 \inornatum 40: 142 \ntercalatum 40: 142 Nmississippiense 40: 19 ~^neohexagonum 36: 34 N(Antalis) pilsbryi 56: 69 ~pretiosum 43: 110 \.(Antalis) pseudohexagonum 56: 69 "^ quadricostatum 47; 146 - rectius 53: 22 rubescens 52: 139 'tsamanicum 40: 19-20 ■^ semipolitum 52: 42 ''stimpsoni, see entale s. ^'texasianum 58: 60 ^/wadei 40: 142 dentata, Anculosa 35: 9 dentata, Divaricella 49: 118 dentata, Helix, see H. carocolla d. dentata, Lucina 41: 15; 42: 85 dentata, Paravitrea, see P. walkeri d. dentatum, Chondropoma 37: 69; 38: 61; 40: 89; 54: 32 dentatum, Sphaerium 44: 113 dentatus, Anculotus 35: 9 dentatus, Bulimus 60: 57 dentatus, Euconulus, see E. chersinus d. dentatus, Pecten 37: 127 Dentellaria 44: 138, 140 -- also as sub- genus of Helix and Pleurodonte globularis 44: 138 sinuata 44: 138 denticulata, Donax 54: 21 denticulata, Marginella 46: 117; 56: 75 denticulata destina, Marginella 56: 75, pl. 7 denticulata opalina, Marginella 56: 75 denticulata, Petricola 59: 103 denticulata suturalis. Varicella 55: 29 denticulata, Zetekia 45: 51 denticulatum, Epitonium 52: 28 dentifer, Bulimulus 46: 110 dentifera, Partula 37: 112 dentifera, Polygyra 46: 55; 48: 57; 53: 86 dentifera, Triodopsis 54: 88-9; 55: 13; 59: 28, 89, 91, 93 Dentipecten 50: 26 depauperata, Geomitra (Spirarbula) 35: 13 depicta, Acmaea 36: 34 depilata, Polygyra 40: 136 depressa, Ampullaria 46: 94 depressa, Lucidella (Poenia) 48: 13 depressa valida, Lucidella (Poenia) 46: 13 depressa, Mauritia 57: 25 depressa, Odontostoma 36: 84 depressa, Oreohelix 35: 15; 42: 123; 47; 3; 48: 140-2 -- see also O. strigosa d. depressa. Patella 37: 71 depressa, Polygyra, see P. columbiana d. depressa, Pomacea 55: 126-7 depressa, Proserpina 3b: 61; 40: 90, 140 depressiformis, Helix 36: 17 depressior, Helix -- see H. maackii d. depressum, Helisoma, see H. occidentale d. depressus, Ancylus 37: 7 depressus, Somatogyrus 41: 26; 56: 132 depyga, Venus 37: 47 depygis, Goniobasis 35: 2; 41: 61; 43: 5-6 depygis, Lithasia, seeL. obovata d. depygis, Melania 38: 47: 41: 61; 43: 6: 51: 48 derbesiana, Endodonta 47: 58 derbyi, Proserpina 36: 85 derelicta, Macoma 36: 59 derelictus, Bostryx 57: 123 derelictus ascendens, Bostryx 57: 123 dermatina, Cepolis (Jeanneretia) 56: 88 dermatina, Cepolis 56: pl. 11 Deroceras 35: 79; 55: 30; 58: 15 -- also as subgenus of .^griolimax agreste 48: 57-8; 50: 132, 134; 51: 63, 140; 52: 96, 97; 54: 29; 55: 68; 56: 54; 57: 110-2; 59: 68; 60: 34 agrestis 50: 133; 60: 5 campestre 50: 117: 51; 140 -- see also laeve c. gracile 55: 143; 56: 54; 57: 112-3: 58: 16, 68, 79 -- see also laeve g. hesperium 58: 16 heterura 58: 15-6 153 Deroceras INDEX TO hyperboreum 55: 30 laeve 48: 57; 53: 130; 55: 31; 57: 112-3; 58: 16; 59: 92; 60; 99 laeve campestre 51: 106; 52: 96-7 laeve gracile 54: 19, HI; 55: 7 monentolophus 58: 16 panormitanum 58: 16, 67-8 reticulatum 55: 67-8; 58: 16; 60: 3, 100 dershavini, Planorbis, see P. borealis d. descendens, Geomitra, see G. actinophora d. desertorum, Micrarionta 44: 4; 48: 67 -- see also M. hutsoni d. deshayesi, Voluta 46: 112 deshayesii, Area 35: 121 deshayesii, Mactra 38: 100 deshayesii, Mitra 60: 56 Desmocaulis 39: 15, 17; 44: 136-7 desolatum, Cerithium 56: 23, 29 despectus tornatus, Chrysodomus 39: 135 Despoena 36: 84-5 cinnamomea 36: 85 Despoenella 36: 85 Detracia 56: 36 bulloides 38: 61 destina. Marginella, see M. denticulata d. destructa, Bankia (Neobankia) 60: 108 devexa, Episcynia 60: 9-12, pi. 1 devia, Polygyra 48: 47 devius, Mesodon 37: 134-5 Devonia -- subgenus of Entovalva dextroversa, Pupilla 43: 56 -- see also P. syngenes d. diablensis, Cerion, see C. uva d. diabloensis, Helminthoglypta 55: 98-9, 101 diaboli, Paludestrina 48: 91 Diacolax 60: 108 cucumariae 60: 108 diadema, Neritina 49: 79 diadema, Scalaria 40: 142 Diadora alternata 46: 121; 57: 32 aspera 38: 27; 43: 109; 50: 49; 51: 123 cayenensis 58: 60 jaumei 57: 32 listeri 52: 28: 57: 32 microsticta 40: 141; 57: 32 minuta 53: 38 viridula 46: 121 Diaglypta 47: 61 Diaglyptus 47: 61 diagonalis, Parapholyx, see P. effusa d. Diagonaulus 59: 12 Diala 35: 84; 53: 22 acuta 50: 48. 50 leithii 35: 85. 134 marmorea 35: 85: 37: 43 varia 35: 84 Dialeuca 56: 82-3. 90 -- r.lso as subgenus of Cepolis (Leptoloma) conspersula 56: 89. pi. 10 (Leptoloma) conspersula fuscocincta 56: 82. 89 nemoraloides 56: 82, 90-1, pi. 11 subconica 56: 91, pi. 11 Diana gredleri 58: 134 Diaphana 41: 22 hiemalis 40: 22 diaphana, Auriculella 37: 3; 38: 79 diaphana. Helix 53: 107 diaphana. Vitrina 42: 139 diaphanum. Sphaerium, see S. acumina- tum d. Diastole 50: 70; 56: 41 (Laua) lauae 56: 41 diazi, Trophon (Boreotrophon) 55: 121-2, pi. 8 Dibaphus edentulus 36: 122 Diceras 47: 83 Dichachiton 39: 48-9, 76 dichroa, Helicina 48: 54 Didianema 59: 12 pauli 59: 12, pi. 2 tytha 59: 12 didyma, Drupa 56: 76-7, pi. 7 diegensis, Lamellaria 48: 43: 52: 124 diegensis. Teredo 60: 53 diegoensis, Polita 37: 132 difficilis, Pittieria 55: 59 difficilis, Unio 37: 102 difficilis, Vaginula 39: 15: 44: 136 digitalis, Acmaea 47: 102; 50: 48 digitalis umbonata, Acmaea 51: 124 digitata. Drupa 55: 2 Diglyptus 47: 61 Dignaxis 53: 11, 15 digneti, Pleurobranchus 37: 41 digueti, Chama 47: 83 digueti, Lamellaria 52: 124 dilatata, Anculosa 35: 10; 45: 60-1; 46: 39; 56: 50 dilatatum, Pisidium 52: 57 dilatatus, Elliptio 36: 97; 40: 66; 42: 50; 44: 130; 49: 80-1 dilatatus sterkii. Elliptio 42: 50-1; 44: 47 dilatatus buchanensis. Menetus 48: 56. 59 dilatatus. Planorbis 38: 43; 40: 17; 41: 120; 58: 12 dimidiata. Terebra 37: 62; 60: 56 dimidiatum. Cerion 51: 20-1 diminuta. Cipangopaludina 56; 127 diminuta. Hua 57: 21 diminuta. Hyalosagda 48: 136 -- see also H. sincera d. diminuta. Otopleura 36: 122 Dimorphoptychia 44: 34 Dinocardium robustum 58: 58 robustum vanhyningi 58: 107 Dinocochlea ingens 36: 66 Dinotropis 51: 24 harringtoni 51: 24-5. pi. 2 Diodora 53: 36 diomedae. Alabina 36: 28; 55: 121 diomedae. Niso 36: 122 diomedea. Antiplanes 58: 108 154 THE NAUTILUS Dissimilis diomedea. Propebela 58: 108 diomedea. Tridachia 38: 143 dioscoricola. Pupisoma 37: 66-7. 69; 42: 21: 48: 88 dioscoricola insigne, Pupisoma 39: 78: 42: 66 diplocheila, Helicina, see H. neritella d. Diplodon 39: 33; 47: 72-5 apprimus 47: 72. 74 flucki 57: 14-5. pi. 5 fontainianus 47: 74 granosus 44: 41; 57: 48 huapensis 45: 18 parallelopipedon 47: 75 quadrans 47: 72-4 suavidicus 57: 15 uruguayensis 47: 72 vaguaronis 44: 33 Diplodonta 53: 137: 55: 110-3 aleutica 38: 24 orbella 37: 41: 55: 110-3 Diplodontites 36: 35: 39: 33 cookei 43: 129: 45: 18 Diplonieriza 37: 61. 63 Diplomorpha -- also as subgenus of Placostvlus coxi 46: 68, 9, pi. 2 Diplopoma avenuni 48: 63 (Parachondrops) campbelli 48: 63 fraterminor 48: 63 shepardianum 48; 63 dira. Searlesia 38: 25: 50: 47 dirce. Crassispira 45: 52 directus. Ensis 35: 32; 38: 50; 41: 12. 15: 56: 61: 57: 33-4: 58: 23. 31. 59. 137-8. 140; 59; 14. 97 Discina cuniingii 58: 100 discobolus. Polygyra. see P. chisosensis d. Discodoma 44: 138 albilabris 44: 138 gigas 44: 139 Discohelix 48: 128 (Discosolis) laniellifera 48: 128 discoidea. Endodonta 41: 128 discoidea. Polygyra. see P. tridentata d. discoidea. Proserpinula 48; 136, pi. 8; 49: 53 Disconaias -- subgenus of Actinonaias discors. Acmaea 52: 44 discors. Musculus 51: 101 discors. Urocoptis 40: 90 Discosolis 48: 129: 59: 9 -- also as subgenus of Discohelix nobilis 59: 9 retifera 48: 129 Discostrobilops 41: 102 discrepans. Veronicella 41: 129 Discula 35; 12 -- also as subgenus of Ochthephila gomesiana 35: 13 Disculella 35: 12 -- also as subgenus of Geomitra disculus. Modulus 52: 45 Discus 45: 82. 85; 52: 11; 53: 123: 54: 65: 55: 10, 21-3 (Anguispira) alternatus 49: 58-9 angulatus, see macclintocki a. and patulus a. anthonyi 48: 140-1 -- see also cronk- hitei a. brooksi. see patulus b. bryanti 52: 14 bryanti nigromontanus 52: 14; 55: 21 bryanti tuberculatus 52: 14. pi. 2 carinatus. see patulus c. catskillensis. see cronkhitei c. clappi 52: 14 cockerelli. see shimekii c. cronkhitei 45: 85:48:47: 50: 87-8. 117; 53: 63. 131. 133: 54: 29. 32. 96. 117; 55: 143-4; 56: 54; 58: 79 cronkhitei anthonyi 47: 8; 48: 58. 71; 50: 13. 117: 53: 87. 123: 54: 29; 56: 54: 57: 132 cronkhitei catskillensis 49: 58: 50: 117; 52: 108: 53: 87; 55: 14; 59: 28, 91 macclintocki 53: 123; 55: 21 macclintocki angulatus 53: 143; 55: 21 (Gonyodiscus) marmorensis 45: 82. 84-5. 87. pi. 5 nigromontanus. see bryanti n. patulus 45: 85: 46: 58-9; 47: 147; 48: 36. 58; 49: 100; 52: 13-4; 53; 87. 123; 55: 8. 21: 58: 25-6. 128 patulus angulatus 52; 13. pi. 2; 53: 85. 143; 55: 21 patulus brooksi 52: 13. pi, 2 patulus carinatus 53: 143: 55: 21 perspectivus 45: 85 ralstonensis 55: 22 randolphi 55; 22 rotundatus 52: 108; 54:74; 55; 21 sandersoni 55: 21 shimekii 48: 71 shimekii cockerelli 48; 71 simillimus 55: 21 tuberculatus. see bryanti t. discus. Actinonaias 36: 36 discus. Dosinia 36: 11; 43: 35; 49: 132; 54: 21: 58: 58 discus. Periploma 47; 85 disjuncta. Conchocela 41: 130 disjuncta. Thyasira 41: 129-30 dislocata. Melania 42: 30 dislocata. Terebra 36: 123: 37; 53. 55; 58: 62 dislocatus. Pecten 38: 113: 51: 93 dispar, Gafrarium 60; 57 dispar. Tellina 40: 81 disparilis. Ostrea 59: 40-1 dispiralis. Bellamya. see B. quadrata d. Dissentoma 59: 59 prima 59: 59 dissimilis. Bellamya 56: 126 155 Dissimilis IKDEX TO dissimilis, Paludina (Mudalia) 35: 9; 46: 38. 40: 54: 65 dissimilis. Varicella, see V. biplicatula d. dissimulans, Alcadia 40: 88 Distaectria 40: 69-70 distans, Fasciolaria 35: 34; 37: 54; 44: 30; 57: 142-3: 58: 62 distinguenda, Cypraea, see C. turdus d. Distoechia 40: 70 Distorsio anus 55: 2 constrictus 37: 124 distorta, Helix 41: 127 distorta, Physa 54: 65 distorta sublaevis, Auris 57: 47 Distortrix reticulata 43: 35 distortus, Cantharus 37: 123 distortus, Colubraria 60: 55 distortus. Murex 37: 47 distortus, Streptaxis 41: 127 ditzleri. Radiodiscus (Radioconus) 41: 128 divaricata. Crenella 53: 22 divaricata. Lacuna 38: 16, 18 divaricata, Littorina 38: 26 divaricata. Lucina 42: 85 divaricatus. Elliptio 40: 106 Divaricella 38: 51; 45: 108; 49: 118 dentata 49: 118 eburnea 37: 128 quadrisulcata 42: 85; 49: 118: 52: 28: 56: 142; 58: 58 diversipictus. Drymaeus. see D. inter- pictus d. divisus. Tagelus 42: 84; 43: 64; 49: 119; 58: 59 docens. Choanopoma. see C. fimbriatu- lum d. dodona, Tellina 51: 66 doellojuradoi. Odontostomus (Spixia) 54: 93. 95 doellojuradoi minor. Odontostomus iSpixia) 54: 94 dohertyi. Liguus. see L. solidus d. dohrni. Ennea 49: 96-7 dohrni. Ptychotrema 49: 96-7 Dolabella californica 46: 75 dolaboratoides. Trochus 37: 47 dolabratus. Helix 37: 47 dolabriformis. Mactra 38: 99-100 dolarium. Murex 37: 47 dolei. Carelia 38: 82 dolichophallus. Ariolimax 58: 33 Dolichostyla 59: 120 dolioides. AmpuUaria 39: 33 dolioides, Ampullarius 37: 75-6, pi. 4 Dolium 45: 79; 52: 77 galea 38: 95 melanostoma 55: 2 perdix 55: 2; 60: 55 pomum 55: 2 ringens 45: 79; 46: 111 dombeyana. Plectomerus 49: 81 dombeyana, Unio 41: 131 dombeyi, Tagelus 37: 129 domingensis, Barbatia 45: 128 dominicana. Pleurodonte, see P. guade- loupensis d. dominicensis, Helicina 60: 33 dominicensis, Spondylus 51: 38 dominicus, Drymaeus 38: 61 dominiquensis. Helicina 60: 33 donaciformis, Plagiola 36; 99 donaciformis. Truncilla 36: 99; 44: 48 donatii. Helix, see H. pisana d. Donax 36: 33: 37: 81; 38: 51; 40: 52-3; 41: 12. 16-7. 76; 43: 29: 48: 100; 56: 32 abruptus 37: 82 bitinctus 40: 53 callatus. see punctostriatus c. californicus 37: 81-4 carinatus 52: 45; 58: 99; 60: 19 conradi 37: 84; 40: 52 conradii 37: 82 contusus 40: 52-3 culminatus 37: 82: 58: 99 denticulata 54: 21 faba 60: 57 flexuosus 37: 81-4 fossor 36: 11. 30; 41: 140; 42: 142-3; 43: 28-30: 51: 94; 54: 127; 56: 140; 57: 31-2 fossor protractus 43: 28 gouldii 37: 83-4 gracilis 37: 82. 130 laevigata 37: 82-4 navicula 37: 82-3 obesus 37: 81-2. 43: 30 petallinus 52: 45 protractus, see fossor p. punctatostriatus 37: 122, 130; 52: 45 punctostriata 37: 82. 84 punctostriatus caelatus 58: 99 rostratus 37: 82 scortum 37: 51 scrotum 37: 51 striata 37: 83 transversus 52: 45 tumida 43: 30. 35 variabilis 36: 11. 60; 37: 53. 55: 38: 32; 39: 84; 41: 10. 15. 140: 42: 28-30; 49: 132; 51: 94; 54: 21; 57: 32; 58: 59: 59: 15 vellicatus 40: 53 versicolor 38: 51 versus 58: 99 donovani. Buccinum 39: 134 dooleyensis. Goniobasis 38: 48 dora. Turbonilla (Pyrgiscus) 52: 51 d'orbignyana, Physa bk!: i'ia -- see also P. orbignyana d'orbignyi, Pollia 45: 55 dorfeuilliana. Polygyra 47: 4-6 doriac. Melanopsis 50: 10. 12 doriae nigra. Melanopsis 50: 10 156 THE NAUTILUS Dubia doriae, Theodoxus 50: 10 Doris 36: 133 pilosa 39: 49 dormani, Drymaeus 42: 20 dormani albidus, Drymaeus 41: 53 dorsalis, Pallifera 43: 43: 44: 129; 48: 57-9 dorsalis, Philomycus 50: 131 dorsalis, Xylophaga 56: 68 Dorsanum 37: 36 dorsata. Crepidula 36: 18 dorsatus, Elliptic 48: 29 Doryssa 49: 78; 57: 48 consolidata 57: 48, 51 Dosinia 45: 74. 79 annae 52: 45 concentrica 54: 21 discus 36: 11; 43: 35; 49: 132; 54: 21; 58: 58 dunkeri 37: 129; 48: 120; 52: 45 elegans 37: 55; 39: 83; 58: 58 ponderosa 44: 94; 46: HI. 114; 48: 4; 57: 5; 59: 34 Doto coronata 36: 135 Douglassia bealiana 56: 15, pi. 3 enae 56: 16 downieana, Goniobasis 42: 29 downiei, Anculosa 58: 41 downiei, Lithasia 35: 59 draconis, Polinices (Euspira) 50: 48; 53: 136; 54; 139 draconus, Polinices 60: 90 drakensburgensis. Conulinus 46: 102 draparnaldi. Oxychilus 49: 100 draparnaldi. Polita 42: 59 draytonii, Goniobasis 48: 95. 131. 133 Dreissensia 40: 107 polymorpha 35: 63 Drepania 45: 31-2 fusca 45: 31 graeffei 45: 32 tartanella 45: 32 Drepanida 45: 31-2 fusca 45: 32 Drepanocaulis 39: 14. 18; 44: 136-7 Drepanoprocta 39: 15. 18 Drepanostoma 51: 107 Drepanostomella 38: 88 Drepanotrenia 56: 2; 59: 71 anatinum 47: 64-5. 67-8 cultratum 58: 32: 59: 70 cultratum labrosum 47: 17 hoffmani 54: 96. pi. 8 lucidum 47: 68; 54: 96-7; 56: 8 Dril'ia -- also as subgenus of Pleurotoma albinodata 39: 85 ebur 46: 117 (Crassispira) harfordiana 39: 84 pentagonalis 54: 52 roseobasis 36: 132 saulcydianus 60: 61 unibilicatus GO: 61 zebra 39: 85 droueti, Drymaeus 57: 29 Drupa 53: 36 didyma 56: 76-7. pi. 7 digitata 55: 2 horrida 60: 55 lugubris 56:77 morus 36: 122 nodosa 56: 77 ricinus 36: 122; 55: 2 tuberculatus 36: 122 undata 60: 55 dryas. Liguus, see L. solidus d. Drymaeus 38: 56-7. 40: 65; 47: 93-4. 116; 53: 28; 57: 28. 59. 125; 58: 29-30 albidus. see dormani a. angulobasis 57: 125 attenuatus varicosus 57: 28 bahamensis 38: 61 bolivarii 58: 30 bourgeoisae 57: 28. pi. 6 cinnamomeolineatus 57: 47 diversipictus. see interpictus d. dominicus 38: 61 dormani 42; 20 dormani albidus 41: 53 droueti 57: 29 emeus 57: 28 eusteirus 58: 29 expansus 57: 62 flexuosus 57: 127 flexuosus megas 57: 127 fusagasuganus 51: 33 harringtoni 44: 33 hegewischi 57: 29 immaculatus 49: 56 inca 57: 61-2. pi. 7 interpictus 57: 125 interpictus diversipictus 57: 125 latizonatus. see multilineatus 1. megas. see flexuosus m. multilineatus 35: 68; 37: 68-9; 38: 61; 50: 69-70 multilineatus latizonatus 50: 69-70 perductorum 57: 29. pi. 6 peruvianus. see torallyi p. pilsbryi 47: 93. pi. 13 punctatus 57: 126 shattucki 47: 115 subhybridus 57: 125 torallyi 57: 126 torallyi peruvianus 57: 126 translucens 47: 94 trimarianus 44: 82 fusagasuganus 51: 33 varicosus. see attenuatus v. violaceus 58: 30 dubia. Aurinia 51: 38 dubia. Cyclas 35: 105: 59: 86-7 dubia. Euglandina 55: 54 dubia. Isthmia 40: 72 dubia. Plicatula 52: 46 dubia. Urocoptis 49: 57 dubia. Veronicella 44: 134 157 Dubiosa INDEX TO dubiosa, Alcadia 48: 12 dubiosa. Poteria 48: 87 dubium, Busycon 52: 17 dubium, Pisidium 35: 105-6, 113, 115, 117; 58: 52; 59: 85-7 dubius, Vaginulus (Angustipes) 41: 129; 44: 134-5 ducalis, Spondylus 51: 39; 60: 56 duclosiana salvatoris, Cepolis 56: 86 duclosiana. Helix 56: 36 duclosiana, Plagioptycha 56: 36 Ductosiphonaria 59: 108 dugesiana. Durangonella 59: 20-1, pi. 3 dulcis, Cuspidaria 55: 121 dulcis, Wanga 57: 21 dunkeri, Dosinia 37: 129; 48: 120; 52: 45 dunkeri, Mytilus 49: 2 dunkeri, Spirostemma 49: 56 duperryi, Trapezium 40: 82 dupetithouarsi, Epiphragmophora 36: 14; 38: 55; 51: 36 dupetithouarsi, Fusinus 57: pi. 3 dupetithouarsi, Fusus 52: 45; 57: 4 dupetithouarsi. Helix 36: 12; 46: 11-2; 50: 99 dupetithouarsi concursus. Helix 38: 55 dupetithouarsi. Helminthoglypta 38: 55; 44: 43; 54: 122, 124-5 duplex, Placostylus 42: 75 -- see also P. porphyrostoma d. Duplicaria 37: 63 duplicata, Natica 41: 10, 15 duplicata, Neverita 42: 111 duplicata, Polinices 37: 56; 38: 50; 39: 38; 43; 35; 44: 30; 54: 20; 56; 143; 58: 60 duplicata, Polynices (Neverita) 39; 86; 59: 97 duplicata, Terebra 37: 63-4 duplicatoides, Myurella (Myurellisca) 37: 64 duplicatoides, Terebra (Myurellisca) 37: 63 duplicatum, Buccinum 37: 47 duplinensis, Fasciolaria, see F. papillo- sa d. duplocincta, Eulota 38: 64 duponti. Paramentaria 43: 135 Durangonella 59: 18 dugesiana 59: 20-1. pi. 3 mariae 59: 20-2, pi. 3 pilsbryi 59: 20, 22, pi. 3 seemani 59: 18-20. pi. 3 Durania 36: 67 duryi eudiscus. Helisoma 58: 32 duryi seniinole. Helisoma 58: 32 duryi, Planorbis 41: 53 duttoniana, Angitrema 35: 58 duttoniana, Lithasia 35: 59 dux, Coecum 46: 121 dyrnezeviczii, Krynickillus 35: 79 Dysniedoma 54: 109 Dysnomia perplexa rangiana 44: 44, 48 torulosa 40: 105 torulosa gubernaculum 40: 105 (Truncillopsis) triquetra 36: 102; 44: 48; 45: 104 triquetra 46: 68 dysoni, Cyclostoma 36: 15 dysoni, Unio (Nephronaias) 35: 25; 41: 139 Dysopeas 40: 143 eatoni, Neptunea (Sulcosipho) 47: 92 ebena, Fusconaia 36: 48; 40; 66; 44: 89 ebena, Nitocris 46: 40 ebenum, Goniobasis 41: 58; 52: 128; 53: 75-6; 56: 132 ebenus, Quadrula 36: 48, 54; 44: 89 eboreum, Dentalium 58: 60 eboreus. Pecten 49: 133 ebraea , Voluta 40: 144 ebraeus, Conus 60: 56 ebur, Drillia 46: 117 ebur, Pleurotoma 46: 117 Eburna 38: 110 eburnea. Divaricella 37: 128 eburneum, Cerithium 38: 60 eburneus, Balanus 43: 132 eburneus, Liguus 36: 113; 38: 60 ecarinata, Bellamya, see B. quadrata e. ecarinata, Lora, see L. scalaris e. eccentrica, Acmaea 58: 95 echinata, Chama 47: 82; 52: 44: 58: 96 echinatum, Opisthosiphon 45: 94 echinatus, Spondylus 38: 62; 49: 117; 51: 38 echinatus americanus Spondylus 52: 28 Echinella 38: 56-7 nodulosa 35: 121: 38: 60 Echininus 56: 36 Echinochama 47: 84; 56: 119 arcinella 39: 83; 51: 74. 78-9; 54: 21; 56; 117-8, 123, pi. 13; 58: 58 arcinella cornuta 51: 79 californica 47: 85; 51: 79 echinulatus. Conus 55: 43-4 Ecrobia -- subgenus of Paludestrina Ectinochila 38: 66 Ectinochilus 38: 66 edentata. Polygyra 47: 144 edentilabris. Polygyra. see P. tridentata e, edentula. Columella 38: 123; 40: 113; 41: 34, 40: 42: 14; 43: 134; 47: 139; 48: 59: 50: 98; 53: 47, 64, 128 edentula, Cj^Jraeovula 40; 18 edentula, Lucina 38: 61 edentulus, Dibaphus 36: 122 edentulus. Planorbis 54: 33 edentulus. Strophitus 36: 98. 130-1; 37: 29: 38: 10; 39: 122; 43: 90-1; 44: 89 edentulus pavonius, Strophitus 36: 98 edentulus rhonibicus. Stro,jhitus 35: 132 Edgaria 38: 111 edgariana, Goniobasis 36: 115-8; 42: 32; 53: 75-6: 54: 11 158 THE NAUTILUS Elliptica edgariana, Melania 36: 119 ednae, Liotia 36: 122 ednae, Murex (Murexsul) 54: 43 edula. Cardium 37: 47 edule. Cardium 37: 47; 38: 3 edulis, Mytilus 36: 108; 38: 3, 24, 49; 40: 23. 77; 41: 10. 15. 99; 43: 50. 132; 47: 102; 51: 9; 54: 2, 5, 127; 56: 60, 141-2; 57: 8. 69. 100; 58: 22. 138-41; 60: 75 edulis pellucidus. Mytilus 38: 49; 54; 127; 56: 60. 141 edulis. Ostrea 40: 102-3; 43: 144; 55: 108 edvardsi, Stenotrema 52: 55; 58: 127 edwardsi magnifumosa, Polygyra 45: 28 efasciata, Oliva. see O. erythrostoma e. efasciata, Polygyra, see P. profunda e. effiae, Alabina 59: 104 effosa. Goniobasis 51: 91 effusa. Helix 45: 72; 59: 121 effusa. Lacuna, see L. porrecta e. effusa, Parapholyx 42: 120-1; 47: 90-1; 50: 30-1; 52: 35; 55: 16-7 effusa costata. Parapholyx 42: 81-2; 47: 90 effusa diagonalis 42: 82; 47: 90; 50; 31 effusa klamathensis. Parapholyx 55: 16-7 effusa nevadensis. Parapholyx 47: 90-1 effusa, Pompholyx 41: 119-20; 42: 81; 47: 91; 50: 139; 53: 137 effusa costata. Pompholyx 42: 81 effusa. Succinea 41: 54 egens.Pseudopeas 58: 85, 87 Egeria 45: 31 schwabi 43: 107 egmontianum. Trachycardium 58: 58 egregia. Nuculana 53: 17 egregium. Chondropoma 40: 89 eigenmanni. Helicodiscus 38: 42: 40: 17: 42: 125 eichwaldii. Krynickillus 35: 79 eka. Nenia 58: 82-3. pi. 3 Ekadanta 53: 67-8 colonibiensis 53: 68 shanensis 53: 68 Ekadonta 54: 120-1 shanensis 54: 120-1 Elaphroconcha inquinata 51: 104 Elasmias 42: 70 elata, Megaspira 59: 67 elata, Melania 38: 44 elata. Protomedea 40: 134 elata. Tritonidea 58: 100 elatior, Helix, see H. maackii e. elatior, Megaspira 59: 67 elatior. Vertigo 41: 135: 50: 13. 98 -- see also V. ventricosa e. elatum. Cardium 36: 33: 44: 94; 46: 111: 47: 47; 57: 5 electa. Nuculana 53: 17 electrica. Anomia 37: 47 electrina. Polita. see P. hammonis e. electrina, Retinella 47: 138; 48: 57; 50: 13. 121; 51; 57. 59; 53: 87; 54: 117: 55: 143; 57: 132; 59: 28. 68 electrum, Anomia 37: 47 elegans. Bulla 46: 116 elegans, Cantharus 37: 123 elegans. Dosinia 37: 55; 39: 83; 58: 58 elegans. Engina 42: 40 elegans. Eutrochatella 40: 89 elegans. Geomelania 48: 88 elegans. Haminoea 46: 116 elegans, Harvella48: 119 elegans, Mactra (Mactrella) 37: 130 elegans, Plagiola 36: 99 elegans, Salasiella 55: 57 elegans, Sphaerium 57: 95 elegans, Stomatella 60: 55 elegans, Unio 39: 91 elegans, Urocoptis 38: 62; 40: 90 elegans auberiana, Urocoptis 40: 90 elegans, Varicella, see V. philippiana e. elegantula, Melania 41: 60; 43: 6 elenae, Natica 37: 125 elenense, Cardium 37: 129 elenensis. Callistochiton 52: 44 elenensis, Laevicardium 52: 45: 55: 121 elenensis. Leda 37: 126 elenensis, Murex 52: 45 Elephantellum 60: 104 elephantinoides, Dentalium 37: 47 elephantinum, Dentalium 60: 57 eleutherae. Cerion 51: 22 Eleutherocaulis 39: 15, 18; 44: 137 elevata, Aligena 56: 143 elevata. Helix 51: 49 elevata, Melania 51: 93 elevata, Montacuta 46: 78-9 elevata, Polygyra 43: 67; 44: 17; 46: 18 elevatum, Musculium 58: 50 elevatum, Pleurocera 38: 45, 47; 40: 11; 43: 8-10 elevatus. Mesodon 54: 79-80; 56: 62; 57: 44 eliceans. Busycon 35: 136; 52: 19: 53: 24- 6 -- see also B. carica e. eliceans. Fulgur 52: 19-20 eliminata. Goniobasis 35: 2 elizabethae, Aspella 53: pi. 10; 54: 63 elizabethensis. Urocoptis 49: 57 ellicensis, Tellina 60: 57 elliotti, Gastrodonta 35: 41. 43 elliotti. Quadrula 36: 75 elliotti, Urocoptis 40: 39-41, 73, 75 elliotti, Ventridens 46: 58-9, 91 elliotti. Zonitoides 48: 80-1; 55; 97 elliottii. Goniobasis 38: 48 Ellipetylus 59: 2. 8 ellipsiformis, Lampsilis 36: 100 ellipsiformis, Ligumia 36: 100 ellipsis, Obovaria 36: 100 ellipsis. Unio 51: 48 Ellipsostoma gibbosa 43: 2 rugosa 43: 2 ellipsostoma, Calipyrgula 48; 15 elliptica, Astarte 40: 24 elliptica, Physa. see P. gyrina e. 159 EUiptica INDEX TO elliptica, Physella. see P. gyrina e. ellipticum, Sphaerium. see S. sulcatum e. Elliptio 35: 24; 36: 82; 47: pi. 13; 48: 29; 52: 125 -- also as subgenus of Unio calamitarum 35: 26 complanatus 37: 95; 40: 91; 43: 88; 44: 69; 46: 138; 49: 80; 52: 126; 54: 52; 59: 27, 29. 110 crassidens 36: 96; 40: 66 cuatotolapamensis, see liebmanni c. dilatatus 36: 97; 40: 66; 42: 50: 44: 130; 49: 80-1 dilatatus sterkii 42: 50-1; 44: 47 divaricatus 40: 106 dorsatus 48: 29 fisherianus 54: 69 folliculatus 49: 81 gibbosus 36: 19 gibbosus sterkii 35: 133; 36: 19 haricotti 41: 139, pi. 3 hinkleyi 41: 53 hopetonensis 49: 80 incrassatus 38: 105 (Sphenonaias) liebmanni cuatotolapa- mensis 36: 36 maywebbae 48: 28 obnubilus 49: 81 ortmanni 35: 25 ravistellus 35: 27 sajensis 41: 139, pi. 2 sanctorumjohanium 47: 95 spinosus 42: 29; 49: 74 sterkii, see dilatatus s. and gibbosus s. strigosus 49: 81 vanuxemensis 47: 137 yzabalensis 35: 26 elodes, Lymnaea 37: 24; 46: 139; 51: 49; 138-9 elodes, Stagnicola. see S. palustris e, elongata, Ancillaria 39: 104 elongata, Melania 51: 93 elongata. Nuculana 48: 117; 53: 18 elongata. Ostrea 36: 138; 38: 62, 121 elongata. Rivularia 56: 129 elongata, Vitrina 42: 138 elongatus. Pecten 50: 25 elongatus, Vitrinopugio 42: 138 elrodi, Stagnicola 47: 30-2, 124 eirodiana. Stagnicola 49: 64 elsae, Glyphostoma 54: 51 elucens. Tellina 45: 111 elvae. Nephronaias 38: 52. pi. 1; 43: 129 Elysia chlorotica 59: 95-7 Elysiella 36: 104 emarginata. Amnicola 38: 11; 39: 12; 41: 20; 44: 108; 58: 78 emarginata. Area (Scapharca) 37: 127 emarginata, Cincinnatia 48: 110 emarginata. Cyphoma 37: 124; 53: 1 emarginata, Lymnaea 36: 107: 40: 60: 41: 24; 42: 17, 56; 47: 33; 51: 93; 54: 121-2 emarginata angulata, Lymnaea 39: 125; 57: 8-9 emarginata canadensis, Lymnaea 39: 125; 40: 55 emarginata, Stagnicola 40: 83-4; 47: 31; 48: 109-10; 49: 12-3, 128-9; 55: 106 emarginata angulata, Stagnicola 39: 120; 40: 83 emarginata bryantwalkeri. Stagnicola 49: 127-9 emarginata canadensis, Stagnicola 42: 56; 49: 12. 128-9 emarginata magnifica. Stagnicola 49: 128-9; 55: 106 emarginata mighelsi, Stagnicola 40: 83-4; 55: 106 emarginata ontariensis. Stagnicola 39: 120; 49: 12 emarginata serrata, Stagnicola 49: 128-9 emarginata vilasensis. Stagnicola 40: 82; 42: 136: 49: 129; 55: 106 emarginata wisconsinensis, Stagnicola 40: 84. 86 emarginata. Thais (Nucella) 38: 26; 50: 47 emarginata ostrina. Thais (Nucella) 50: 47 emarginata projecta, Thais 51: 124 emarginatum. Sphaerium 57: 95 Emarginula phrixodes 40: 140 emeliodina, Oliva, see O. episcopalis e. emersonii. Chiton 39: 76 emeryensis, Goniobasis 41: 59; 56: 132 emeryi. Littorina 40: 39 emeus. Drymaeus 57: 28 emicator, Oliva 42: 10 emicator alba, Oliva 42: 10 emicator annulata, Oliva 42: 10 emicator carnicolor. Oliva 42: 10 emicator intricata. Oliva 42: 10 emicator mantichora. Oliva 42: 10 emicator nebulosa. Oliva 42: 10 eminens. Sphaerium 57: 95 Emmericiella 37: 98 emmonsi. Viviparus 44: 36 Emoda 40: 35: 54: 71 -- also as subgenus of Alcadia empiricorum. Arion 35: 78, 118; 50: 131. 134 empiricorum ater. Arion 50: 131 Ena caperata 50; 11 (Petraeus) halepensis 50: 11 obscura 37: 71 oxiana schahrudensis 50: 9 enae, Douglassia 56: 16 Enaeta -- subgenus of Lyria endlichi. Goniobasis 44: 36 Endodonta 38; 79; 41: 128: 42: 70; 47: 58 amoena 41: 128 Clara 41: 128 (Thaumatodon) cookei 47: 58 deliciosa 41: 128 derloesiana 47: 58 discoidea 41: 128 160 THE NAUTILUS Epitonium frickii 42: 70 goldii 41: 128 gordurasensis 41: 128 janeirensis 41: 128 jheringi 41: 128 lamellosa 42: 70 laminata 38: 83 marsupialis 42: 70 superba 41: 128 endoplax, Bostryx (Phenacotaxus) 57: 124 endoptyx, Bostryx 57: 125 Endoxus 59: 121 enemopsis, Orygoceras 37: 98 engbergi, Leptothyra 43: 27, pi. 3 engbergi, Musculium 48: 48 Engina 42: 40 contracta 37: 123 elegans 42: 40 idosia 36: 122 leucozona 42: 40 lineata 57: 70 melanozona 42: 40 panamensis 45: 143 tabogaensis 45: 143 tobagoensis 52: 45 turbinella 51: 89; 53: 38 zonata 42: 40 engonata , Anatifa 40: 81 engonatum, Monoceros 38: 19-21, 104 enigmaticus, Spiraxis, see S. acus e. Ennea -- also as subgenus of Pupa dohrni 49: 96-7 (Uniplicaria) pumillo 49: 94 ensifera. Yoldia 49: 14; 51: 100; 60: 91 Ensis 41: 16 directus 35: 32; 38: 50; 41: 12. 15; 56: 61; 57: 33-4; 58: 23. 31. 59. 137-8, 140; 59: 14. 97 minor 57: 33-4. pi. 6; 58: 59 minor megistus 57: 33. pi. 6 entale stimpsoni. Dentalium (Antalis) 35 87; 39: I13 entalis. Dentalium 37: 47 Fntalis striolata 35: 87 Entodesma chilense 49: 19 cuneata 49: 19 saxicola 47: 102; 49: 19; 56: 42 (Agriodesma) sechurana 49: 18. pi. 1 Entodina 38: 88; 41: 125 -- also as sub- genus of Systrophia Entolium -- subgenus of Pecten Entovalva (Devonia) perrieri 45: 142 Enzina 42: 40 zonata 42: 40 Eocypraea adamsonii 40: 17-8 Eodiplodon 42: 108 eolina. Carocolla 36: 84 Eonaias 43; 107 Eorrhachis -- subgenus of Rhachistia eos, Brachypodella. see B. alba e. eosmithi, Cypraea 38: 35 Eostrobilops 41: 102 Ephrada 51: 86. 88 ephippium, Anomia 37: 47 Epilucina californica 53: 22 Epiphragmophora 41: 86-7; 51: 24 arrosa 35: 35 atahualpa 57: 119 bowersi 50: 123 buttoni, see mormonum b. cala, see mormonum c. californiensis 35: 35 catalinae 42: 99 circumcarinata 36: 141 dupetithouarsi 36: 14; 38: 55; 51: 36 fidelis 35: 34-5; 36: 14, 37, 61, 144; 49: 49 fidelis oregonensis 36: 14 hillebrandi, see mormonum h. infumata 37: 5 mormonum 36: 12, 14 mormonum buttoni 36: 14' mormonum cala 36: 14 mormonum hillebrandi 36: 14 nickliniana 35: 35 orcutti 51: 33 ore'gonensis, see fidelis o. proles, see traskii p. traski tularensis 52: 9 traskii proles 52: 9 traskii tularica 52: 9 tucumanensis 39: 77 tudiculata tularensis 52: 9 tudiculata umbilicata ?8: 55 tularensis, see traski t. and tudiculata t. tularica, see traskii t. Epirobia 53: 95 episcopalis, Oliva 42: 10 episcopalis emeliodina, Oliva 42: 11 episcopalis lugubris, Oliva 42: 10 episcopalis, Voluta, see V. mitra e. Episcynia 59: 80; 60: 8-11 -- also as sub- genus of Architectonica bolivari 60: 11-2, pi. 1 devexa 60: 9-12, pi. 1 multicarinata 59: 81, pi. 8; 60: 3-9, 11-2 naso 59: 81; 60: 10-1 nicholsoni 60: 10-1 epistylioides, Sagda (Parahelix) 48: 138-9; 49: 53 epistyliulum, Hyalosagda (Microsagda) 48: 136; 49: 52; 54: 60 Epitonium 35: 136; 36: 34; 38: 51; 44: 104; 45: 6, 113, pi. 9: 53: 38; 55: 122: 59: 103 angulatum 37: 55; 56: 141; 58: 60 appressicostatum 55: 121 bormanni, see tinctum b. (Asperoscala) canna 45: 113 chamberlain! 45: 6, 8-9, pi. 1 charlestonensis 45: 8, pi. 1 cochlea 51: 67; 54: 63 (Asperoscala) cooperensis 45: 8, pi. 1 161 Epitonium INDEX TO cooperi 44: 104; 45: 31, 71 costulatum 35: 32 (Nitidoscala) crebricostatum 50: 47 (Opalia) crenimarginata 37: 42; 52: 10 denticulatum 52: 28 fallaciosum 45: 31, 70-1 feldmanni 53: 7 (Nitidiscala) gaylordianum 45: 114 greenlandicum 39: 132 groenlandicum 35: 32 hindsii 45: 31 humphreysii 36: 60; 54: 127; 56: 141; 57: 31; 58: 60 (Nitidiscala) indianorum 50: 47; 55: 47 insculptum 52: 10 (Cirsotrema) linteatum 54: 127; 56: 77; 58: 60, pi. 7 (Sthenorhytis) mazyckii 45: 9, pi. 1 multistriatum 56: 143; 58: 60 (Nodiscala) ordenanum 45: 114 (Nitidiscala) phanium 45: 113 (Cirsotrema) pilsbry 54: 62 pretiosum 45: 6 raveneli 45: 7, pi. 1 (Nodiscala) sanjuanense 45: 114-5 (Nitidiscala) strongi 45: 115; 46: 36 strongianum 46: 36 subcoronatum 42: 2; 55: 47 (Sthenorhytis) subexpansum 45: 9, pi. 1 (Asperoscala) tinctorium 45: 113 (Nitidoscala) tinctum 37: 42; 45: 70-1; 50: 47, 50; 55: 46-7 (Nitidoscala) tinctum bormanni 55: 47 toUini 52: 34, pi. 1 (Opalia) wroblewskii 50; 47 equalis, Cyclas 59: 86 equalis, Phymeroda 59: 86 equatorialis, Julia 57: 86, pi. 9 equestris. Cheilea 37: 125; 60: 55 equestris, Ostrea 43: 144; 51: 93 Erato 40: 36 columbella 37: 42 sandwichensis 36: 122 scabriuscula 37: 125 vitellina 50: 48 Eredona 45: 105 Eremarionta 43: 40; 50: 124; 56: 84; 58: 72 -- also as subgenus of Micrarionta eremiophila. Ferussacia 47: 61 eremothauma, Bostryx 57: 87-8 ericetorum. Helix 59: 119 eriense, Cerithium 56: 23. 30 eriensis, Anguispira, see A. alternata e. eriganensis, Lasmigona, see L. costatae. erinaceum vibex, Phalium 51: 112 erinaceus, Murex 60: 37 erinaceus, Vaginulus (Angustipes) 41: 129 erinaceus, Vaginulus (Sarasinula) 44: 136 eritrichiu.s, Mesodon 53: 56-60 ernesti vivens, Potamopyrgus 44: 143 Erodona 60: 36 Erosaria caputserpentis caputanguis 57: 26-7 caputserpentis caputophidii 57: 27 erosa, Cypraea 50: 79; 51: 2; 52: 6, 103- 4; 55: 2; 57: 83, 85; 58: 131; 60: 55 erosa, Tachyrhynchus 39: 133 erosus, Murex 45: 77 erosus major, Tachyrhynchus 38: 26 erpina, Venus 37: 47 erratica, Aorotrema 59: pi. 2 erraticum, Aorotrema 59: 11 errones, Cypraea 52: 104; 57: 83; 58: 131-2, 144 erubescens, Leptaxis 35: 101-3 erycina, Venus 37: 47 Ervilia subcancellata 49: 119 erythrogramma, Mitra 45: 54 erythrostoma, Oliva 42: 7; 55: 2 erythrostoma efasciata, Oliva 42: 7 erythrostoma fumosa, Oliva 42: 8 erythrostoma johnsoni, Oliva 42: 8 erythrostoma pica, Oliva 42: 8 erythrostoma saturata, Oliva 42: 8 erythrostoma sylviS, Oliva 42: 8-9 erythrozona, Alcadia 54: 70 eschrichtii, Bittium 53: 22 eschrichtii" montereyense, Bittium (Stylidium) 50: 48 eschscholtzi, Turbonilla (Mormula) 38: 26 espicicola, Polygyra 50: 133 espiloca, Polygyra 39: 12; 43: 35: 44: 143; 50: 133, 135 esperanzensis, Planorbis 47: 65-7 esquimalti, Astarte, see A. rictocyma e. estafaniae, Euglandina, see E. sowerbyana e. esuritor, Ashmunella 49: 68 Ethalia 59: 2 reclusa 59: 5 suppressa 59: 82 etowahensis, Goniobasis 42: 67 etowahensis, Lasmigona 36: 129 etowahensis, Melania 42: 29 Euaethiops loveridgei 44: 104 Euamnicola 57: 68-9; 60: 86-7, 105 Eubela mcgintyi 56: 76, pi. 7 Eucalodium 56: 91 Euchelus foveolatus 60: 55 Euchemotrema 52: 98; 53: 33; 54: 113 Euclastaria 52: 144; 56: 82, 89 -- also as subgenus of Cepolis Eucobresia 42: 139 Euconulus 36: 36; 40: 64; 43: 37, 81; 44: 33; 56: 71 alaskensis 35: 36 -- see also fulvus a. cassiquensis 57: 47 chersinus 37: 66. 69; 39: 80; 41: 34; 42: 20: 46: 58-9; 48: 57-8, 80; 51: 105-6: 53: 47, 85; 55: 8, 97: 57: 28, 132 chersinus dentatus 53: 47 162 THE NAUTILUS Eulyratus chersinus polygyratus 39: 124; 40: 53-4; 42: 15; 43: 81; 47: 138 chersinus trochulus 38: 42; 42: 66; 58: 69 conoides 55: 35-6 dentatus, see chersinus d. fabricii 53: 63 fulvus 35: 36; 36: 37-8; 38: 10; 40: 47, 58, 68, 113; 41: 20, 42-3, 52; 42: 94, 135; 43: 43-4, 58, 61, 118-9, 133, 142, 144: 45: 34: 47: 8; 50: 13, 87, 116; 53: 87, 133; 55: 14; 56: 71; 58: 78; 59: 90 fulvus alaskensis 37: 79; 38: 124; 40: 77; 42: 124; 43: 61; 44: 114: 46: 128; 47: 2: 48: 47; 50: 13, 87; 53: 63, 133; 54: 29, 31, 117; 55: 143-4; 56: 53 polygyratus, see chersinus p. sterkii 51: 105 trochiformis 53: 63 trochulus 40; 14 -- see also chersinus t. Eucrassatella gibbsi 56: 13 Eucyclophorus woodianus ambubuquensis 52: 92 woodianus isabelanus 52: 92, pi. 7 Eudaphne 45: 143; 47: 76-7 allemani 45: 143; 47: 76 Eudaphnella 47: 76-7 Eudentalium 47: 146 eudiscus, Helisoma. see H. duryi e. eudiscus, Scolodonta (Systrophiella) 38: 86-7 Eudolichotis 58: 30 Eudoxus 59: 121 Eudrastus 51: 86, 88 eufalensis, Corbicula 50: 23-4 Euglandina 38: 38; 40: 65; 44: 81, 83, 141; 49: 97-8: 50: 72; 52: 15; 55: 52, 54-5 angustior, see texasiana a. aurata lignaria 55: 55 balesi 52^: 16; 53, pi. 2 botteriana 55: 54 bullata, see rosea b. (Singleya) Candida 55: 60 (Singleya) Candida conularis 55: 60 conferta 55: 57 conularis, see Candida c. convallis, see saxatilis c. cordovana 55: 57, 60 coulteri 44: 141 cumingii 55: 52, 54 (Cosmomenus) cylindracea 55: 60 dalli 49: 98; 55: 58 delicata 49: 97 delicatula major 55: 58 (Proameria) delicatula motivaga 55: 56. 58, 60, pi. 5 dubia 55: 54 estafaniae, see sowerbyana e. exesa 44: 141 (Ghiesbreghtia) flammulata 55: 54, 56. 60. pi. 5 immemorata 49: 97 jacksoni 49: 97, pi. 7 lignaria, see aurata 1. lowei 44: 83, pi. 5 major, see delicatula m. mariana 44: 83 mazatlanica 44: 83 michoacanensis 55: 60 minor 38: 60 monilifera 55: 54 montivaga, see delicatula m. oblonga tamaulipensis 49: 98 parallela, see rosea p. polita 55: 57 (Guillarmodia) pupa 55: 54, 56-7, 60, pi. 5 pygmaea 49: 98, pi. 7 rosea 37: 67; 41: 52; 42: 20; 49: 97; 50: 71 rosea bullata 43: 35 rosea parallela 44: 141; 49: 97 (Proameria) saxatilis 55: 54, 56-8, 60, pi. 5 (Proameria) saxatilis convallis 55: 56. 58, 60, pi. 5 singleyana 38: 38, 42; 39: 12; 47: 79; 55: 52, 54 sowerbyana 54: 81 sowerbyana estafaniae 55: 60 (Varicoglandina) stigmatica 55: 56, 60 surinamensis 57: 47 tamaulipensis, see oblonga t. texasiana 49: 97 texasiana angustior 49: 97, pi. 7 turris 44: 84; 52: 16 vanuxemensis 55: 60 Euhadra 41: 64; 49: 35. 70 herklotsi 41: 65 mercatoria perversa 45: 30 sandai okanoi 41; 64 Eulima 36: 11: 38: 111 acuta 46: 117 (Leiostraca) hemphillii 52: 34 hypsela 46: 117 Eulimax 35: 78, 118 Eulithidium -- also as subgenus of Phasianella substriatum 36: 18 Eulota 40: 133; 49: 35 asiatica 41: 43 -- see also fruticum a. duplocincta 38: 64 (Karaftohelix) fiscina 41: 37-9 fruticum 38: 63; 44: 71 fruticum asiatica 41: 42 maackii 38: 62-4 maackii albida 38: 65 maackii optima 38: 64-5 middendorffii 38: 63 platyomphala 38: 65 similaris 37: 3, 33; 38: 80, 82; 40: 134 similaris unicolor 38: 82 similaris zonulata 38: 82 eulyratus, Pecten (Lyropecten) 56: 110, 123. pi. 14 163 Eunaticina INDEX TO Eunaticina 53: 111; 54: 137, 139; 60: 91 oldroydii 53: 135-6; 54: 136, 138; 60: 90 Euparypha 59: 119 pisana coalita 36: 45 pisana rosea 36: 45 pisana taylori 36: 45 Eupera 35: 104, 108; 40: 30; 58: 50 cubensis 52: 131; 58: 50 singleyi 40: 30; 41: 54; 58: 50 Euphrata 55: 20 -- also as subgenus of Anodonta Euplaciphora excurvata 58: 102 caudata 35: 88; 38: 50; 50: 66; 56: 143; 58: 61 triquetra 52: 45 muriciformis 37: 124 eupleura, Pupoides 44: 142 Eupolymnia magnifica 49: 60 eurekensis, Oreohelix 52: 105; 54: 96 eurekensis uinta, Oreohelix 52: 105 europaea, Alvania 53: 29 Eurycaelon 43: 12; 45: 35; 46: 38; 49: 77; 52: 127 anthonyi 43: 12; 45: 35 crassa 45: 35 Eurycampta 56: 82 Eurycratera -- subgenus of Polydontes Eurynia iris 44: 130 nasuta 44: 47 vanuxemensis 40: 66 eurystoma, Cerion 38: 60 Euryta 37: 63 Eurytellina 59: 35 -- also as subgenus of Tellina Euscalpellum 40: 142 Euspira -- also as subgenus of Natica and Polinices monterona 51: 123 Euspiraxis 53: 11, 16 -- also as subgenus of of Spiraxis eusteirus, Drymaeus 58: 29 Eustreptaxis 41: 127 Eustreptostyla 41: 21; 55: 52-3 -- also as subgenus of Streptostyla euthales, Mesodon 53: 57, 60-1 Eutoniopeas 59: 105 Eutrochatella 37: 89; 40: 35, 39; 41: 22; 47: 115 cathartensis, see pulchella c. cavearum, see pulchella c. chittyana 48: 11 chrysochasnia 40: 89 chrysochasma mendozana 41: 79 conica 40: 89 (Excavata) costata 48: 63 elegans 40: 89 grayana, see pulchella g. josephinae 48: 11 • jugulata 40: 89 lyrata, see regina 1. mendozana, see chrysochasma m. multicarinata 48: 11 -- see also pulchella m. nobilis 48: 63 nobilis retreatensis 48: 11, 63, pi. 2 nodae 40: 89 pulchella 48: 63 pulchella cathartensis 48: 11, 63, pi. 2 pulchella cavearum 48: 10, 63, pi. 2; 49: 26 pulchella grayana 48: 63 pulchella multicarinata 48: 63 pulchella scitula 48: 63 regina lyrata 40: 89 remota 40: 89 retreatensis, see nobilis r. rupestris 40: 89 scitula 48: 10 -- see also pulchella s. sloanei 38: 60; 40: 89 tankervillii 48: 63 Eutrochus -- subgenus of Calliostoma Eutudora camoensis 40: 89 limbifera 40: 89 Euvaricella 49: 22; 55: 26-7 -- also as subgenus of Varicella Euvola -- subgenus of Pecten euzona, Nematurella 36: 140 Evalea 50: 48 -- also as subgenus of Odostomia evania, Oliva, see O. reticulata e. evanstonensis, Helicina 50: 128 evelynae, Marginella 56: 113-4, 123, pi. 14 everetti, Amphidromus, see A. versicolor e. evicta, Opalia 51: 4, 6, pi. 2 evoluta, Ilaira 59: 9 exacuous, Menetus 40: 50-1; 42: 59, 133; 44: 46; 48: 59, 110; 50: 116, 129; 58: 78 exacuous megas, Menetus 42: 133; 50: 116; 51: 129 exacuous, Planorbis 36: 24; 37: 30; 38: 11; 39: 126; 40: 55, 61; 41: 85; 42: 17, 19; 43: 83; 44: 110; 49: 47-8 exacuous lenticularis, Planorbis 37: 78 exacuous megas, Planorbis 49: 48 exaequata, Lacuna, see L. porrecta e. exanthema, Cypraea 37: 125; 38: 61; 55: 44 exanthema cervus, Cypraea 55: 44 exarata, Bela 51: 117 exarata, Cellana 40: 80 exarata, Helminthoglypta 51: 82; 54: 125 exarata, Lora 40: 21 exarata, Melania 43: 10 exaratus, Helcioniscus 35: 84; 40: 80 exasperata arenosa, Turricula 60: 56 exasperatus, Pecten 37: 55; 38: 120; 52: 102; 58: 57 Excavata 41: 22 -- also as subgenus of Eutrochatella excavata, Lampsilis 37: 142, 144; 39: 93 excavata. Metis 37: 129 excavata, Sunetta 49: 2 excavatus, Pecten 46: 113 excavatus, Zonitoides 60: 94 excentrica, Vallonia 53: 88 excrescens, Helix 42: 67. 141 excrescens, Lamprocystis 42: 67, 141 164 THE NAUTILUS Fallax excrescens, Nanina 42: 141 excuratum, Pleurocera 43: 8 excurvata, Euplaciphora 58: 102 exesa, Euglandina 44: 141 exesus, Bulimus 60: 57 exigua, Galba 40: 50, 52 exigua, Fossaria 49: 130 exigua, Helix 35: 49 exigua, Janthina 37: 42; 54: 73 exigua, Lymnaea 52: 127 -- see also L. obrussa e. exigua, Nucula 37: 126 exigua, Striatura 48: 58; 53: 87 exigua, Systrophia (Entodina) 41: 125 exigua, Zonitoides 39: 124; 40: 58 exiguum, Carychium 37: 65-6; 39: 12; 40: 17; 42: 134; 43: 68, 104, 119; 47: 16; 49: 115; 51: 128; 52: 15; 53: 88; 59: 28 exiguum, Pisidium 59: 34 exiguus, Unio 37: 103 exile, Carychium 40: 17, 48, 62; 42: 21; 43: 43-4; 48: 57, 59, 106; 49: 115; 53: 47, 88; 54: 111 exile canadense, Carychium 41: 122; 42: 134; 49: 115 Exilia 59: 61 kelseyi 59: 63, pi. 7 rectirostris 59: 62, pi. 7 Exilioidea 59: 61 kelseyi 59: 62-3 rectirostris 59: 61-3 rectirostris hertleini 59: 63 exilis, Bulimulus 35: 119, 121 exilis, Lymnaea 37: 24: 53: 135 exilis, Melania 54: 64 exilis, Planorbis (Gyraulus) 52: 58 exilis. Stagnicola 42: 136; 43: 42 eximia, Acteocina 35: 45-6. 122: 38: 25; 42: 37-8 eximia, Pteria 35: 99 eximium, Calliostoma 52: 44 excisum. Gyrotoma 58: 47 exogyra, Chama 47: 83 exogyra, Pseudochama 47: 84, 137 exoleta, Mactra (Mactrella) 37: 130; 38: 98, 100: 52: 45 exoleta, Polygyra 48: 36 exoletus, Mesodon 56: 104-5; 60: 79 exornata, I eptaxis 35: 103 exotica. Anodonta 36: 7, 9 expansa, Geomelania. see G. jamaicensis e. expansa, Limnaea 54: 65 expansilabris, Helminthoglypta, see H. arrosa e. expansus. Drymaeus 57: 62 expressus, Ischnochiton 58: 101 exquisita, Acanthochitona 46: 112 exquisita, Julia 57: 86 Exsuavitas 52: 143; 54: 58-9 -- also as subgenus of Aquebana pubescens 54: 58-9 extremitatis, Oreohelix, see O. yavapai e. exustus, Mytilus 37: 55; 39: 83; 49: 117; 56: 31; 58: 57 exuvia, Nerita 37: 48 exuviata, Crepidula 50: 48 eyerdami, Anguispira, see A. kochi e. eyerdami. Cingula 47: 103, pi. 8; 57: 142 eyerdami, Pisidium 52: 81 eyerdami, Puncturella 37: 133; 38: 23, 27 eyerdami. Turbonilla (Pyrgolampros) 38: 23, 26; 51: 126 faba, Crenella 36: 104; 40: 23; 54: 2 faba, Donax 60: 57 fabaceus, Unio 37: 138-9 fabagella, Lepton 60: 71 fabale, Pisidium 35: 116 fabale, Sphaerium 58: 49 faber, Trochus 37: 48 fabricii, Euconulus 53: 63 fabula, Astarte 40: 24 fabula, Myrtaea 60: 57 fabula, Tellina 37: 48 Facelina agari 49: 61 Fadyenia 48: 13, 62 (Lewisia) agassiziana adamsiana 48: 14 alderiana 48: 62 baquieana 48: 62 baquieana mitchelliana 48: 62 baquieana sutherlandiana 48: 62 blandiana 48: 14 fadyeniana 48: 62 (Blandia) gouldiana 48: 14 hollandiana 48: 14 jayanum 48: 62 lindsleyana 48: 62 mitchelliana, see baquieana m. newcombiana 48: 62 philippiana 48: 14 poeyana 48: 62 sutherlandiana, see baquieana s. fadyeniana, Fadyenia 48: 62 fairchildi, Asolene (Surinamia) 47: 71. pi. 7 falaceus, Unio 37: 139 falcata, Adula 56: 42 falcata, Botula 43: 50; 60: 89 falcata, Mactra 38: 98-9, 101 falcata, Margaritana, see M. margariti- fera f. falcata, Margaritifera. see M. margaritifera f. falcata, Mycetopoda 39: 116 falcata, Spisula 38: 100, 102 falcis, Gastrocopta 60: 22, pi. 3 fallaciosa, Lampsilis 36: 101; 43: 90-1: 56: 144 -- see also L. anodontoides f. fallaciosum, Epitonium 45: 31, 70-1 fallax. Helix 48: 49-50 fallax, Pisidium 35: 112: 36: 40: 37: 30: 40: 62; 42: 25 fallax, Polygyra 44: 128; 48: 22, 50-2, pi 1; 49: 100; 52: 97: 53: 86 fallax goniosoma, Polygyra 48; 22, 51, pi. 1 165 Fallax INDEX TO fallax obsoleta, Polygyra 48: 53 fallax, Sphaerium 42: 53; 43: 93-4; 57: 95 fallax, Spiraxis (Volutaxis) 53: 90, 93, pi. 11 fallax, Stenoplax 58: 101 fallax, Triodopsis 48: 49 fallax vannostrandi, Triodopsis 55: 9 fantozatiana, Bellamya, see B. quadrata f. Farcimen 36: 15-6 -- also as subgenus of Megalomastoma croceum 56: 106 curtum 56: 107 hjalmersoni 56: 106 farnumi, Liguus, see L. crenatus f. Fartulum nebulosum 57: 32 occidentale 38: 26; 51: 104 orcutti 37: 42 fascia, Chondropoma (Parachondria) 48: 65 fascia augustae, Chondropoma (Para- chondria) 48: 65 fascia proximunn, Chondropoma (Para- chondria) 48: 65 fasciata, Ampullaria 46: 93, 96, pi. 8; 51: 40: 54: 67 fasciata. Bulla 42: 141 fasciata Cerion 38: 60 fasciata Helix 37: 48; 42: 141 fasciata substriata, Helicina 56: 4 fasciata, Ostrea 37: 48 fasciata, Tegula 58: 39 fasciatum, Buccinum 37: 48 fasciatum, Cerithium 60: 55 fasciatum, Chlorostoma (Omphalius) 39: 86 fasciatus, Arion 38: 93 fasciatus, Liguus 38: 60; 40: 90; 42: 141; 43: 19; 44: 32; 45: 100, 106; 47: 69; 48: 69, 123; 60: 72 fasciatus caribaeus, Liguus 49: 68 fasciatus castaneozonatus, Liguus 35: 20; 46: 92, pi. 7; 48: 69. 122 fasciatus clenchi, Liguus 47: 69 fasciatus crenatus, Liguus 45: 100; 52: 47 fasciatus deckerti, Liguus 48: 121-3, pi. 7 fasciatus hepaticus, Liguus 40: 90 fasciatus lineolatus, Liguus 50: 7 fasciatus mariae, Liguus 48: 123, pi. 7 fasciatus murreus, Liguus 40: 90 fasciatus nobilis, Liguus 45: 98 fasciatus pictus, Liguus 48: 125; 60: 43 fasciatus roseatus, Liguus 35: 20-1; 45: 106; 50: 7, 140 fasciatus solidus, Liguus 60: 45 fasciatus solisoccasus, Liguus 47: 68, pi. 6; 48: 69 fasciatus walkeri, Liguus 46: 91. pi. 7 fasciatus xanthus, Liguus 48: 123 fasciatus, Melampus 60: 56 fasciatus, Cxystrombus 47: 147 fasciatus, Viviparus, see V. georgianus f. fascicularis, Acmaea 52: 44 fascinans, Calliostoma 56: 15, pi. 6 fascinans, Goniobasis 58: 45 fasciola, Lampsilis 36: 101; 49: 81 fasciolare, Ptychobranchus 40: 66; 42: 52; 44: 47; 49: 81 fasciolare lacustre, Ptychobranchus 42: 52 Fasciolaria 46: 111; 50: 2: 55: 64; 57: 143 acmensis, see papillosa a distans 35: 34; 37: 54; 44: 30; 57: 142-3; 58: 62 duplinensis, see papillosa d. gigantea 36: 11; 37: 55; 40: 100; 43: 63, pi. 4; 50: 3, 5; 55: 64; 58: 62 gigantea reevei 36: 11 granosa 45: 79; 52: 45 io 40: 144 macgintyi, see scalarina m. papillosa 55: 64 papillosa acmensis 55: 64 papillosa duplinensis 55: 64 princeps 43: 38; 55: 114; 57: 4, pi. 3 scalarina 50: 21 scalarina macgintyi 49: 139; 50: 21 reevei, see gigantea r. sinuata 40: 144 tulipa 37: 54; 38: 60; 39: 85; 40: 100 fasciolata, Lauria 41: 108 fastigiata, Calyptraea 39: 9-11; 44: 93 fastigiatum. Cerion, seeC. mumia f. fastus, Voluta 37: 48 Faunus 37: 36 nitidus 49: 77-8 faustum, Calliostoma (Eutrochus) 56: 14, pi. 6 Fauxulus 36: 63 burnupianus 41: 108 capensis 41: 108 pamphorodon 41: 108 faveolatum, Sistrum 37: 3 favilla, Turbonilla (Pyrgiscus) 39: 144 favosum, Pleurobema 36: 78-9 favosus, Unio 36: 79 fecundum, Chondropoma (Parachondrella) 48: 66 feejeensis, Littorina 35: 84 Felaniella 49: 118 feldmanni. Epitonium 53: 7 felina, Cypraea 57: 83 Felipes 50: 25, 106 felipponei, Bullimulus (Scutalus) 41: 95-6: 44: 33, 100 felipponei, Callocardia (Agriodesma) 56: 33 felipponei, Pecten (Chlamys) 36: 58 felipponei, Pitar 56: 33 felipponei, Strophocheilus 41: 96 felipponei, Typhlochiton 35: 4 felis. Cerion 51: 23 Fenella 36: 27; 37: 33 fenestralis, Venus 37: 48 fenestrata, Iselica 37: 42; 50: 48 fenestrata, Liotia 37: 43 fenestratus, Phacoides 37: 128 fenestratus, Trochus 60:55 166 THE NAUTILUS Fisheri Fenimorea halidorema 54: 50 janetae 54: 50 fergusoni, Acmaea 36: 104: 41: 111 fergusoni, Conus 46: 74 fergusoni, Mitra 55: 78-80, 144 Fernandezia 47: 60 fernandiana, Cerion 51, pi. 3 fernandina, Cerion 51: 20 fernandina, Cerion (Strophiops) 51: 21-2 ferrea, Hyalina 44: 128 ferrea, Striatura 41: 34; 44: 128; 48: 58; 52: 92; 53: 87; 56: 69; 57: 133 ferrea, Striaturops 44: 128 ferrissi, Helminthoglypta 38: 54; 51: 16: 54: 125 ferrissi, Oreohelix 40: 4 ferrissi, Sonorella 40: 4 ferrissii, Polygyra 46: 91; 51; IB, 136 Ferrissla 38: 66, 107; 40; 76; 44: 31; 48- 47; 49: 44-6, 69; 54: 8; 58: 13; 59: 21 bayacalifornica 38; 107 caurina 40; 76; 47: 112; 48: 48; 49; 68-9 fragilis 48: 48 fusca 48: 110; 49: 44-6; 58; 13 kirklandi 54: 112 occidentalis 38: 107 oregonensis 39: 71; 48: 48 (Laevapex) pallida 46: 117 parallela 41; 93; 42: 18, 94, 133; 44: 46 130; 48: 110; 49: 44-6; 58; 13 peninsulae 41; 54 rivularis 40: 62; 41: 93; 44; 46; 49: 44, 46; 52; 130; 58: 13 tarda 41: 93; 42: 59. 133-4: 44- 89- 48- 59; 54; 8 ferrissiana. Humljoldtiana 41: 82-3; 44- 12- 3; 48: 94 ferruginea, Cerithium 39; 86: 51; 92; 56; 29 ferruginea, Chania 49; 118; 51: 77 ferruginea, Lymnaea (Galba) 45: 35; 48; 47 ferruginea. Mitra 36; 122 ferruginea, Patella 46; 103 ferrugineum, Cnchidium 51: 87 ferrugineum, Pisidium 36: 40; 59: 25 ferrugineum, Sistrum 52: 46 ferussaci tricincta, Oxystyla 60: 107 Ferussacia 42: 105-6; 47: 61 eremiophila 47: 61 subcylindracea 42: 135 ferussacianus, Anodontoides 36: 98, 123-5: 41: 108 ferussacianus buchanensis, Anodontoides 36: 98, 124; 45; 44; 59: 110 festiva, Alectrion 49: 2 festiva, Murex 36: 34; 47: 52; 54: 44 fetella, Odostomia 42: 3 fibratus, Placostylus 42: 74-6 fibratus bourailensis, Placostylus 42: 74. 78 fibratus souvillei, Placostylus 42: 76 fibula, Chania 47: 83 Ficopsis cooperiana 40: 144 fictilis, Geomitra (Disculella) 35: 13 fictum, Pleurobema 41: 139. pi. 3 Ficus decussata 52: 45 Fidelis 40: 33 fidelis minor, Aglaia 36: 14 fidelis, Epiphragmophora 35: 34-5; 36: 14, 37, 61, 144; 49: 49 fidelis oregonensis, Epiphragmophora 36: 14 fidelis, Helix 36; 13; 50; 99 fidelis minor. Helix 36: 13 fidelis, Monadenia 40; 124; 41: 74; 42: 81; 43: 142; 44; 30. 102, 122-3; 46; 12, 14, 82-3. 142-4; 49: 35. 48; 51: 28-9. 32-3, 64-5, 121; 53: 107-8, 141 fidelis beryllica, Monadenia 49: 48 fidelis celeuthia, Monadenia 40: 122 fidelis klamathica, Monadenia 51: 31 fidelis leonina, Monadenia 51: 29 fidelis ochromphalus, Monadenia 51: 28 fidelis pronotis, Monadenia 49: 49 fidelis semialba, Monadenia 51; 65 fidelis subcarinata, Monadenia 60: 93-4 fidelis trinidadensis, Monadenia 60: 93-4 fidjiensis, Paraperonia 51: 87 fieldi, Haplotrema, see H. alameda f. fieldi, Helminthoglypta, see H traski f. figulinus, AmpuUarius 53: 55 Filicaulis 39: 14, 18; 44: 131, 137 filicosta, Coelocentrum 55: 105 filifera, Vitrinella, 60: 15, pi. 2 filocinctus, Gyraulus 48: 34 filocostulata, Nenia 35: 95; 58: 82 filosa, Acmaea 52: 44 fllosa, Lucina 56: 60 filosa, Mitromorpha 58: 100 filosa. Mitromorphina 37: 41 filosa, Mopalia 58: 102 filosa, Rhodacmaea 58: 14 filum, Fleurocera, see P. canaliculatumf. fimbria, Tethys 37: 48 fimbriata, Annularia 37: 91 fimbriata. Cassis 41: 72 fimbriata, Corbis 60: 57 fimbriata, Cypraea 50: 79; 51: 2; 52; 104; 55: 2; 57: 23. 84; 58; 131, 144 fimbriata unifasciata, Cypraea 57; 23 fimbriata, Lampsilis 36: 36 fimbriata, Melibe 35: 51 fimbriatulum. Choanopoma 48: 60. 64 fimbriatulum albinodatum, Choanopoma 48; 64 fimbriatulum docens, Choanopoma 48; 64 fimbriatulum. Cyclostoma 37: 91 fimbriatus. Callistochiton 58: 101 fimbriatus, Helicodiscus 35: 44 fimbriatus, Pecten 50: 56 Finella 36; 27 firma, Chama 51; 74 -- see also C. sinuosa f . firmatum. Caecum 55: 121 fiscella. Morula 58: 122. 123 fiscina, Eulota (Karaftohelix) 41: 37-9 fisheri, Sonorella 43: 73 167 Fisherianus INDEX TO fisherianus, Elliptio 54: 69 Fisherola 38: 73, 75 -- also as subgenus of Lanx Fissurella 35: 119; 40: 39; 43: 38; 46: 104; 53: 38; 57: 72 alba 52: 45 alternata 46: 121 (Cremides) asperella 37: 126 barbadensis 35: 121; 38: 60; 46: 46, 104 crassa 37: 126 crucifera, see volcano c. nigrocincta 52: 45 nodosa 35: 121; 38: 60 rosea 46: 121 rugosa 52: 45 (Cremides) virescens 37: 126: 46: 45 viridula 38: 60; 46: 121 volcana 37: 43 volcano crucifera 36: 18; 37: 43 Fissuridea alia 37: 126 alternata 37: 56; 39: 87 alternata dysoni 39: 87 inaequalis 37: 126 fistula, Orygoceras 37: 98 Fitzia 41: 22 Flabellina -- subgenus of Aeolis flabellum, Chlamys (Aequipecten) 47: 64 flabelluni Ostrea 38: 113; 47: 64 flabellum, Pecten 47: 63-4 -- see also P. kunkumana f . , P. vaughani f . , and P. vaun f . flachi Nenia 35: 95 flachi tingamariae, Nenia 35: 94 flachi, Peruinia 58: 84 flachi bradina, Peruinia 58: 84, pi. 3 flagellatus, Unio 51: 48 Flagellicaulis 39: 14-5, 18; 44: 136-7 Flagellocaulis 39: 15, 18 flagellum, Tellina 53: 80 flammea, Terebra 51: 114. pi. 9; 52: 109; 53: 7-8 flammellus. Liguus 48: 124-5 flammellus organensis, Liguus 48: 125 flammellus russelli, Liguus 48: 124, pi. 7 flammeu, Buccinum 37: 48 flammeum, Buccinum 37: 48 flammulata, Biforina 36: 121 flammulata, Euglandina (Ghiesbreghtia) 55: 54. 56. 60 flammulata, Euglandina 55: pi. 5 flava, Fusconaia 36: 48; 39: 88; 40: 66; 44: 89, 130; 49: 81; 59: 110 flava parvula, Fusconaia 44: 47; 46: 68 flava trigona, Fusconaia 39: 88 flava undata, Fusconaia 39: 88 flava, Nerita, see N. arausiaca f. flavescens, Olivancillaria, see O. gibbosa f. flavescens, Mitra 36: 122 flavescens, Murex 54: 20 flavescens, Ptychobranchus, see P. greeni f. flavescens, Semele 47: 47; 52: 46 flavescens, Streptostylus 40: 130 flavescens, Unio 37: 56 flavidus, Conus 55: 2 Flavoleacina 55: 52-3 flavula, Megalomastoma 36: 15 flavum, Cardium 60: 57 flavus, Limacella 35: 80 flavus, Limax 35: 78, 134; 36: 105; 37: 27; 41: 142: 52: 97, 138; 57; 110-1 flavus colubrinus, Limax 37: 27 flavus maculatus, Limax 37: 27 flavus nigromaculatus, Limax 37: 27 flectens, Lepidochitona 49: 42-3 flectens, Trachydermon 46: 124 Flexopecten 50: 26 flexuolaris, Philomycus, see P. carolini- anus f. flexuosa, Anoma 58: 31 flexuosa, Anomalocardia 39: 84 flexuosa, Anculosa 58: 43 flexuosa, Cylindrella 58: 31 flexuosa, Poromya 50: 91 flexuosa, Rangia 54; 21 flexuosa, Strigilla 49: 119 flexuosus, Donax 37: 81-4 flexuosus, Drymaeus 57: 127 flexuosus megas, Drymaeus 57: 127 flexuosus, Pecten 50; 26 floccosum, Cyclostoma 36: 15 florenciana, Urocoptis, see U. delectabi- lis f. florentiana, Lithasia 41: 62 flori, Baicalia 41: 41 florida, Chama 51: 74; 56: 117, 119-20, 123, pi. 12 florida, Mitra (Scaphella) 55: 45. 78, 80. 144, pis. 3, 7 Amnicola 58: 6 Anachis 53: 20, pi. 6 Area 37: 55 Cardita 37: 55; 39: Cyrena 37: 54; 38: Cyrenoida 45: 69 Cyrenoidea 38: 56, Gastrocopta, see G. pentodonf. llyanassa (Paranassa) 49: 138- 83 94 61 floridana floridana floridana floridana floridana floridana floridana floridana floridana 9; 51: 89 floridana floridana floridana floridana floridana floridana floridana floridana floridana floridana 106 floridana 130 floridana, Thais 38: 62; 41: 7-8, 141; 44: 68; 54: 20; 56: 103; 58: 61; 60: 34 floridana haysae, Thais 41: 6, 8; 43: 35; 44: 68, pi. 2; 56: 103; 60: 34 41:28 66 Julia 57: 86 Leidyula 42: 45-6 Lyonsia 37: 54 Muricidea 37: 54; 39: 86 Neritina (Smaragdia) 51; Panopea 35: 99 Phacoides 37: 54 Purpura, see P. haemastomaf Stenacme 58: 112-4. pi. 5 Strobilops 37: 66; 42: 21; 51: Succinea 37: 66, 69; 41: 53; 52: 168 THE NAUTILUS Fossa floridana, Tivela 53: 18, pi. 6 florldana, Varicella, see V. gracellima f. floridana, Veronicella (Leidyula) 39: 16; 42: 45-6; 44: 131; 48: 88 floridana, Vitrinella 60: 16, pi. 2 floridanum, Caecum 39: 66 floridanum, Cerithium 38: 94; 58: 61 floridanum, Coecum 46: 121 floridanum, Onchidium (Onchidella) 50: 85 floridanum, Vasum 53: 82, pi. 10 floridanus, Conus 37: 55; 39: 84; 58: 62 floridanus, Liguus, see L. crenatus f. floridanus, Microdochus 57: 32 floridanus. Modulus 37: 54; 38: 61 floridense, Campeloma 47: 18 floridensis, Condylocardia 60; 6-7, pi. 1 floridensis, Melania 42: 29 floridensis, Oxystyla 35: 20, 22; 36: 111; 38: 59; 50: 2, 6, 19 -- see also O. undata f. floridensis, Pseudorotella 59: 2 floridus, Strombus 60: 55 flucki, Anodontites 38: 53-4, pi. 1 flucki, Diplodon 57: 14-5, pi. 5 fluctifraga, Chione 36: 33; 47: 46 fluctuata, Anachis 37: 124 fluctuosa, Leptaxis 35: 102-3 fluctuosus. Turbo 46: 115 fluminalis, Cipangopaludina, see C. lecythoides f. fluminalis, Corbicula 50: 10 Fluminicola 43: 77; 44: 78, 110; 48: 92-3, 107; 53: 67, 124-5; 54: 118; 58: 35 avernalis 48: 92-3; 50: 42; 53: 124; 54: 117-8 avernalis carinifera 48: 93; 50: 42; 53: 124; 54: 117-8 carinifera, see avernalis c. chihuahua 48: 92 coloradoense 53: 125-6 Columbiana 48: 92-3; 53: 125 fusca 44: 109, HI, 113; 48: 107; 53: 124-5 hindsi 53: 125 kettlemanensis 48: 15 merriami 53: 124 nuttalliana 53: 124-5 percarinata 48: 16 perditicoUis 48: 16 pilula 48: 15 seminalis 53: 125, 137 siegfusi 48: 16 spiralis 48: 16 turbiniformis 48: 93 virens 48: 15 Fluminina 35: 107 lluvialis turrita, lo 42: 36 fluviatilis, Ancylastrum 35: 5 fluviatilis, Ancylus 35: 5-6, 57: 38: 83-5; 39: 44, 40. 114-5 fluviatilis, Pseudancylus 40: 108 fluviatilis, Neritina 38: 3 fluviatilis, Potamides 49: 78 Fluvinerita 50: 111 fluxa, Nuttallina 48: 89 foliacea. Purpura 40: 81 foliata. Purpura 50: 47 Folinia 51: 36 -- also as subgenus of Rissoa folliculatus, Elliptio 49: 81 foUiculum, Bulla 37: 48 fonkii, Calliostoma 37: 126 fontainianus, Diplodon 47; 74 fontainianus, Unio 47: 74 fonticulus, Poteria 56: 2 Fontigens 47: 12 nickliniana 53: 47 fontinale, Pisidium 40: 27 fontinalis, Goniobasis, see G. comalensis f. fontinalis, Physa 41: 41; 50: 134 fontiphila, Helminthoglypta 45: 49, pi. 4; 50: 68; 54: 125 fontis, Urocoptis, see U. ambigua f. footiana, Anodonta 48: 110 -- see also A. grandis f. forata, Anomia 37: 48 forbesi, Sphaerium, see S. stamineum f. forbesi, Tonicia 52: 43, 46 forbesiana, Anodonta 36: 8 fordi, Typhis 57: 40, pi. 7 fordinsulae, Atys, see A. semistriata f. foremani, Anculosa 58: 41 foremaniana, Sagda 49: 54 foremanianum, Ptychobranchus 37: 56-7 foremanii, Pleurocera 58; 43 forensis, Cryptaxis 35: 102 forensis, Leptaxis 35: 13, 103 formosa, Anculosa 58: 41 formosa. Area (Scapharca) 37: 127 formosa, Marginella 60: 62 formosa, Partula 37: 112 formosa, Viviparus, see V. leidyi f. formosana, Blanfordia 39: 7 formosensis, Philomycus 38: 80 formosulum. Caecum 46: 122 fornicarius, Patella 37: 48 fornicata. Chama, seeC. frondosa f. fornicata, Crepidula 35: 62-3; 36: 11; 37: 55; 38: 50; 39: 39, 86; 40; 68, 102-3; 41; 15; 42: 68; 43: 132; 54; 20, 127; 56: 58, 143: 57: 133; 58: 60, 137-8, 141; 60: 75 forresterensis, Cingula 47: 103, pi. 8 forsheyi, Quadrula 56: 144 forskali, Isidora 43: 92-3 forskalii cernicus, Bulinus 43: 93 fortis, Carinoturris 58: 108 fortiusculum, Cerithium 56: 22, 25-6 fortis, Humboldtiana 53: 140; 54: 47-9 fortis, Oreohelix, see O. yavapai f. fortis, Pleurodonte, see P. okeniana f. fortis, Spiraxis 52: 133 fortiplicata, Tropaeas (Siogamaia) 50: 108 fossa, Leda 38: 24 169 Fossaria INDEX TO Fossaria 49: 130 -- also as subgenus of Lymnaea brooksi, see obrussa b. cooperi 49: 130 dalli 42: 104 dalli grandis 44: 107: 51: 131 decampi, see obrussa d. exigua 49: 130 grandis. see dalli g. modicella 42: 56, 125; 44: 114; 45: 117; 48: 59; 59: 29 modicella rustica 43: 119; 44: 88; 54: 29 obrussa 44: 46, 114; 45: 118; 49: 13, 130; 50: 114; 54: 29; 56: 54: 59: 29 obrussa brooksi 49: 13 obrussa decampi 49: 13; 50: 115; 54: 144; 57: 46 obrussa rodecki 49: 130 parva 42: 104, 125; 43: 42; 44: 45, 88 perplexa 42: 103 rodecki, see obrussa r. rustica, see modicella r. sibirica, see truncatula s. truncatula sibirica 52: 59 umbilicata 54: 144; 57: 45; 59: 28-9 Fossarina 35: 107 fossarinum, Pisidium 40: 27-8 Fossarus 40: 134 granulum 59: 54 fossata, Alectrion 36: 34; 44: 93 fossatus, Nassarius (Schizopyga) 50: 47; 53: 22 fossiculifera, Fossula 57: 89 fossilis. Triphora 59: 104 fossor, Donax 36: 11, 30; 41: 140; 42: 142- 3; 43: 28-30; 51: 94; 54: 127: 56: 140; 57: 31-2 fossor protractus, Donax 43: 28 fossor, Tudora 37: 94; 39: 43 Fossula 57: 89 fossiculifera 57: 89 venezuelensis 57: 89, pi. 10 fosteri. Bankia (Plumulella) 60: 108 fouae, Acmaea 58: 93 foveolata, Ocenebra 60: 41 foveolata, Tritonalia 37: 42; 50: 47. 49; 52: 10; 53: 22 foveolatus. Euchelus 60: 55 foxi. Lucidella 48: 13 fragile, Cerithium 56: 21 fragilis, Ampullacera 45: 106 fragilis, Ampullarina 45: 106 fragilis, Anodonta 44: 69 fragilis, Benedictia 41: 41 fragilis, Cerithidea 56: 20 fragilis, Ferrissia 48; 48 fragilis, Janthina 38: 60; 54: 75 fragilis, Leptacliatina 38: 81 fragilis, Leptodea 36: 99; 38: 136; 39: 91; 40: 67; 44: 47; 59: 110 fragilis, Mactra 38: 100; 54: 21:58: 59 fragilis, Megaustenia 43: 52 fragilis, Omphalina 40; 16 fragilis, Opeas 45: 72 fragilis, Periploma 40: 23 fragilis, Volutopsius 57: 142 fragosa, Quadrula 36: 47 -- see also Q. quadrula f. Fragum -- subgenus of Cardium fragum. Hemicardium 60: 57 frameum, Buccinum 37: 48 francesae 50: 18 francesae, Parviturbo 59: 56-7 francesca, Cochliopa 50: 16, 18 francheti, Margarya, see M. melanoides f. fraterminor. Diplopoma 48: 63 fraterna, Polygyra 37: 96; 39: 80; 40; 47- 8; 43: 67, 118; 44; 87: 45: 34: 47: 139: 48: 57; 50; 120; 51: 56, 58-60; 52: 96-7; 53: 48, 86 -- see also P monodon f. fraterna cava, Polygyra 53: 48, 85 fraterna friersoni, Polygyra 40; 16 fraternum. Stenotrema 52: 98; 54; 88-9. 113-5; 55: 13; 58: 26, 126-8; 59; 28, 89 fraternum cavum, Stenotrema 52: 98; 54: 113-5 fraternum montanum, Stenotrema 52: 98- 9; 53: 33, pi. 7 fraudulenta, Polygyra 35; 64; 43: 67; 48: 22, 36. 49-50, pi. 1; 49: 100; 50; 119; 51: 59-60; 53: 86 -- see also P. tridenta- ta f. fraudulentum, Pisidium 35: 115 frauenfeldi, Vaginula 39; 15 frazeri, Cerithiopsis 51: 124 fredbakeri, Mangelia 45; 124, pi. 11 freminvillea, Alvania 53; 29 frenata, Littoridina 60; 102 frenata, Zetekina 60; 102 frenulata, Rimula 57: 38-40, pi. 7 fretensis, Alectrion 36: 61; 57: 31 fretensis. Gemma 53; 18, pi. 6 friabilis, Omphalina 44; 17 fricatus, Pecten 38: 116 fricki. Murex 58; 100 frickii, Endodonta 42; 70 friersoni. Polygyra, see P. fraterna f. and F. monodon f . friniana, Hua 57: 21 frisoni, Polygyra, see P. tridentata f . frondea. Patella 37: 48 frondosa, Chama 47; 81 frondosa, fornicata, Chama 47: 81 frondosa mexicana, Chama 47; 81-2 frondosus, Dendronotus 35: 30 Fruticicola -- subgenus of Hygromia fruticum. Eulota 38; 63; 44: 71 fruticum asiatica, Eulota 41; 42 fruticum. Helix 41: 43 fucana, Olivella, see O. biplicata f. fucata, Strigella 52: 46 fucata, Tellina 37; 48 fuchsi, Lithoglyphus 37; 98 fulgens, haliotis 36: 18; 37: 43: 109-10; 46: 139; 56: 57; 60; 92 170 THE NAUTILUS Fusus fulgens turveri, Haliotis 56: 57: 60: 92 fulgetrum. Helicostyla 45: 104 fulgetrum gigantea, Helicostyla 45: 104, pi. 8 Fulgur 40: 138: 52: 17, 20 canaliculatum 40: 138 carica 52: 17, 19, 20 contrarius 53: 26 eliceans 52: 19-20 perversum 40: 138; 49; 132-3 pyruloides 51: 48 fulgurans, Columbella 60: 56 fulgurans, Mazatlania 52: 45 fulgurans, Olivancillaria, see O. gibbosa f. fulica, Achatina 40: 33 fuliginosa, Lithasia 35: 58-9; 41: 60-1 fuliginosa, Omphalina 43: 67 fulleri, Teredo 60: 53 fulminata, Pitar 49: 118 fultonensis, Succinea, see S. retusa f. fulva. Mitra 36: 122 fulvescens, Murex43: 35; 44: 30; 58: 61 fulvicostatus, Pecten 50: 25 fulvus. Conus 41: 44-5 fulvus, Euconulus 35: 36: 36: 37-8; 38: 10: 40: 47. 58. 68, 113; 41: 20. 42-3, 52; 42: 94, 135; 43: 43-4. 58. 61, 118-9, 133, 142, 144; 45: 34; 47: 8; 50: 13, 87, 116: 53: 87. 133; 55: 14; 56: 71 fulvus alaskensis, Euconulus 37: 79; 38: 124; 40: 77; 42: 124; 43: 61; 44: 114; 46: 128: 47: 2; 48: 47; 50: 13, 87; 53: 63, 133: 54: 29, 31. 117; 55: 143-4; 56: 53; 58: 78; 59: 90 fumosa. Oliva. see O. erythrostoma f, funebralis. Tegula (Chlorostoma) 47: 53; 50: 49; 53: 22 funiculata. Acmaea 45: 21-5. pi. 2 funiculata. Scurria 45: 24 -- see also S. mitra f. funiculatus. Ischnochiton 58: 101 funiculus 60: 17 furcillatus, Amphidromus 37: 85 furcillatus. Teredo 38: 144 furva. Leptaxis 35: 102 furva grandissima, Leptaxis 35: 103 fusagasuganus. Drymaeus 51: 33 fusca. Area 60: 56 fusca. Botula 49: 117; 54: 40 fusca. Calyptraea 39: 9 fusca, Drepania 45: 31 fusca, Drepanida 45: 32 fusca, Ferrissia 48: 110; 49: 44-6; 58: 13 fusca. Fluminicola 44: 109, 111, 113; 48: 107; 53: 124-5 fusca, Hygromia 36: 67 fusca. Lacuna 38; 18 -- see also L. vincta f. fusca, Lymnaea, see L. palustris f. fusca, Pyramidella 36: 60; 37: 54; 38: 50; 56: 143 fusca, Sayella 53: 44 fusca, Syrnola 48: 130 fuscata, Cerithidea 56: 27 fuscata, Columbella 37: 124; 52: 44 fuscata, Potamis 56: 27 fuscata, Stiliger 59: 95-7 fuscatum, Sphaerium 59: 84 fuscatus, Arion 35: 78 fuscatus, Murex 37: 48 fuscescens. Veroniceiia 41: 129 fuscocallosa, Helicina, see H. ampliataf. fuscolabiata, Helix 52: 78 fuscolabris. Pleurodonte 49: 54 fuscolabris acuta, Pleurodonte 49: 55 fuscolabris goniasmos, Pleurodonte 49: 54-5 fuscolabris patina, Pleurodonte 49: 54 fuscolabris semperfluens, Pleurodonte 49: 55 fuscolabris sublucerna, Pleurodonte 49: 55 fuscoligata, Daphnella 37: 41 fuscolineatum, Choanopoma, see C. bronnii f. Fusconaia 36: 2-3, 74 barnesiana 36: 74 barnesiana bigbyensis 36: 74 ebena 36: 48; 40: 66; 44: 89 flava 36: 48; 39: 88: 40: 66: 44: 89. 130; 49: 81; 59: 110 flava parvula 44: 47; 46: 68 flava trigona 39: 88 flava undata 39: 88 kirtlandiana, see subrotunda k. ozarkensis 36: 74 parvula, see flava p. and rubiginosa p. rubiginosa parvula 36: 19 subrotunda 40: 66 subrotunda kirtlandiana 40: 66 succissa 36: 73-4 trigona 36: 19 -- see also flava t. undata, see flava u. fuscum. Choanopoma. see C. album f. fuscus, Ancylus 35: 62; 37: 13. 31 fuscus, Pecten 38: 112 fusiformis, Anachis 49: 138 fusiformis, Goniobasis 41: 58; 58: 46 fusiformis, Lithasia 41: 58 fusiformis. Pupa 58: 31-2 fusiformis, Solenosteira 37: 123 Fusinus 54: 47 (Barbarofusus) sp. 44: 93 cinereus 46: 110; 47: 47 colpoicus 43: 135 dupetithouarsi 57: pi. 3 hyphalus 54: 43 kobelti 37: 41 luteopictus 37: 41; 54: 46 watermani 51: 91 Fusoterebra 37: 61, 63 Fusus 43: 72; 52: 20; 60: 27 antiquus contrarius 56: 69 bicolor 47: 118 bulbiformis 44: 138 cinereus 51: 49 171 Fusus INDEX TO contrarius, see antiquus c. corneus 35: 88; 51: 49 decemcostatus 35: 88 dupetithouarsi 52: 45; 57: 4 islandicus 35: 88 pleurotomarius 51: 118 proboscidiferus 52: 18 pygmaeus 35: 88 roperi 45: 51 stimpsonii 35: 88 terebrina 37: 63 tessellatus 60: 108 toreuma 43: 72 waterman! 49: 139; 50: 22 fusus. Murex 37: 48 futilis, Spiraxis (Versutaxis) 53: 52, 89, 93, pi. 9 G-A-Weaveri, Turritella 40: 71 gabbi, Brachysphingus 40: 144 gabbi, Callistochiton 51: 26r52: 44 gabbi, Micrarionta 42: 100; 44: 86 gabbi, Noetica 40: 144 gabbi, Scalpellum 40: 142 gabbi, Succinea 48: 47 gabbi, Zirfaea 43: 51; 45: 52 gabbii Physa, see P. virginea g gabbiana, Cypraea (Pustularia) 49: 137 gabbiana loxahatchiensis, Cypraea (Pus- tularia) 49: 137, 139 gabbiana, Oreohelix, see O. haydeni g. and O. strigosa g. gabbiana, Fatula, see P. haydeni g. gabrielina, Polita 37: 130-2; 43; 123 gabrielina, Vitrea 43: 114 gabrielinun:!, Pristiloma 43: 123 Gadina reticulata 37: 41; 50: 47 Gaeotis 50; 140; 54: 62 gaertneriana, Helix 57: 65 Gairariunn cerina 52: 28 dispar 60: 57 gagates, Milax 35: 97; 39: 103; 57: 113 gaigei, Choanopoma 47: 115 galactites, Helicostyla 46: 71 galactites, Helix 59: 120 galapagana, Codakia 37: 128 Galba 39: 143; 44: 38 -- also as subgenus of Lymnaea buttoni, see proxima b. exigua 40: 50, 52 hemphilliana, see reflexa h. modicella 40: 50 obrussa 37: 30; 40: 120 parva 40: 51 proxima buttoni 48; 19 reflexa hemphilliana 37: 23 galea, Dolium 38: 95 galea, Tonna 58: 61 galeata, Lemniscia 36: 46 galeata, Puncturella 38: 27 galeatus, Strombus 45: 78; 46; 114; 52: 46; 57: 4 Galerus contortus 39: 9 mamillaris 39: 10 Galeodea 58: 107 Galeodes morio 52: 19 Gallandia 42: 138-9 gallica, Corbula 40: 42, 45-6 gallina, Helicina 43: 135 gallina, Ischnochiton 49: 43-4 gallina, Tegula (Chlorostoma) 37: 43 gallina umbilicatum, Tegula (Chlorostoma) 37: 43 gallopavus, Strombus 37; 48 gallulus, Strombus 37; 48 gallus, Strombus 54: 71; 55: 144 Ganesella 49: 70 gangranosa amoena, Cypraea 40: 128 gardnerae, Julia 39: 34; 57: 86 gardneri, Yoldia 49: 14 gargantua, Helix (Cochlodina) 60: 58-9, 106 gargantua, Odontostomus 60: 59 gargantuas, Odontostomus 60: 58 gargantula, Odontostomus 60: 57 gari, Venus 37: 48 Garrettia 46: 70 Garrettina 46: 70 gartneriana, Helix 57: 65 gartneriana, Papuina 57: 64-6 gaskoini, Cypraea 57: 26, 82 gassiesianum, Pisidium 36: 35 Gastrochaena 54: 41 cuneiformis 58: 60 ovata 54: 41 rostrata 54: 41 Gastrocopta 36; 63-4; 43: 37; 44: 142; 50: 119; 51: 106; 58: 62 abbreviata, see armifera a. agna, see holzingeri a. armifera 36: 63; 40: 16, 48, 66; 41: 20; 42: 20; 43: 44, 68, 118; 44: 17, 44, 88; 45: 116; 50: 98, 121; 51: 57, 106; 52: 15, 29, 96-7; 53: 47, 88; 58: 128 armifera abbreviata 53: 77-8 armifera clappi 50: 98 armifera ruidosensis 60: 22 ashmuni 54: 30-1 barbadensis: 37: 33 clappi, see armifera c. contracta 38: 42; 39: 12; 40: 16, 47-8; 41: 52; 42: 66; 43: 43-4.68, 118-9; 44: 17, 45, 88; 45: 116; 46: 58; 47; 16-7; 50: 98, 121; 51; 57, 106; 53: 47, 88; 58: 128; 59: 28 contracta peninsularis 37: 65-9; 42: 20 corticaria 37: 66; 40: 16, 47; 42: 20; 50: 98; 53: 88; 58: 128 cristata 38: 42; 40: 16; 47; 17; 51: 130; 52: 15; 58; 69 falcis 60: 22, pi. 3 floridana, see pentodon f. gracilis, see pentodon g. holzingeri 42: 14; 45: 116; 50: 98; 58:69 holzingeri agna 50: 98; 60: 24 hordeacella 40; 16; 42; 66 -- see also pellucida h. marginalba, see rupicola m. 172 THE NAUTILUS Geomelania mcclungi, see procera m. munita 46: 69 oblonga, see servilis o. parvidens, see pellucida p. peliucida hordeacella 37: 33, 65-9; 38: 42; 41: 52; 47: 16-7; 48: 114-5; 52: 15: 58: 69; 59: 123-4 pellucida parvidens 59: 123 peninsularis, see contracta p. pentodon 37: 65-6. 68; 38: 42; 40: 47-8; 42: 20, 66; 43: 44, 68, 118; 47: 16-7; 48: 57, 59, 115; 50: 98, 121; 51: 57; 52: 94; 53: 47, 88; 55: 9; 57: 131; 58: 69 pentodon floridana 42: 20 pentodon gracilis 48: 106: 50: 98 pentodon tappaniana 40: 16; 42: 20 proarmifera 60: 21-2, pi 3 procera 42: 66; 45: 117; 47: 16-7; 50: 98; 51: 106; 52: 15, 29; 53: 77-8 procera mcclungi 40: 16; 41: 93; 58: 69 procera riparia 40: 16 procera sterkiana 40: 16; 58: 69 quadridens 44: 114 riisei, see servilis r. riograndensis 48: 115 riparia, see procera r. ruidosensis, see armifera r. rupicola 37: 33, 65-69; 42: 20 rupicola marginalba 38: 7 servilis 39: 78 servilis oblonga 39: 78 servilis riisei 39: 78 sterkiana, see procera s. tappaniana 50: 98; 51: 131; 53: 88 -- see also pentodon t. Gastrodonta 55: 10; 60: 94, 97 -- also as subgenus of Zonites (Clappiella) aldrichiana 42: 90-1, 93 coryphodontis 50: 128 elliotti 35; 41, 43 gularis 35: 44; 39: 80; 42: 90-1 interna 35: 44; 39: 80: 42: 91; 44: 128; 46: 58-9; 48: 80; 55: 8, 96-7; 58: 127 intertexta 35: 44; 39: 80; 44; 129 lamellidens 42: 88 lateumbilicata 43: 144 ligera 39: 74, 80; 40: 8, 66; 43: 67; 44: 129; 51: 137 suppressa 40: 48 gatopensis, Placostylus, see P. guestieri g gausapata, Columbella 36: 18 gausapata, Mitrella 53: 22 -- see also M. carinata g. gaylordianum, Epitonium (Nitidiscala) 45: 114 gaza, Murex (Jaton) 54: 44 gealei, Tomocyclus 36: 15 gelida, Amnicola 44: 22 -- see also A. lustrica g. gelida, Succinea, see S. grosvenori g. geminata, Urocoptis 55: 70 Gemma fretensis 53: 18, pi. 6 gemma 38: 50; 53: 18-9; 56: 60, 142; 58: 137-40; 59: 97 gemma purpurea 36: 32; 38: 50 manhattensis 53: 19 purpurea 56: 144; 58: 58 -- see also gemma p. gemma, Architectonica 59: 81 gemma, Gemma 38: 50; 53: 18-9; 56: 60, 142; 58: 137-40; 59: 97 gemma purpurea, Gemma 36: 32; 38: 50 gemma, Murex (Triremis) 37: 42 gemma, Poteria 48: 87 gemmata, Mitra (Pusia) 39: 85 gemmata, Urocoptis 40: 74 -- see also U. dautzenbergiana g. gemmatum, Cerithium 52: 44 gemmatus, Cantharus 37: 123; 46: 45 gemmea, Chaetopleura 58: 100 gemmelaroi, Cypraeorbis 38: 106 gemmulosa, Mangelia 58: 99 gemmulosa, Pleurotoma 45: 51 Gena lutea 60: 55 generalis, Conus 36: 121; 37: 48 generosa, Panope 44: 92 genicula, Melantho 52: 129 genicula, Paludina 52: 129 geniculata, Anculosa (Lithasia) 54: 65 geniculata, Lithasia (Angitrema) 35: 58-9; 53: 74-5; 56: 132 geniculata pinguis, Lithasia 56: 132 geniculata venusta, Lithasia 53: 74-5; 56: 132 geniculata, Terebra 37: 63 geniculiforme, Campeloma, seeC. rufum geniculum, Campeloma 52: 129-30; 54: 69; 58: 5 geographus, Conus 49: 41; 57; 72 Geoceras -- subgenus of Bostryx Geomelania 48: 88; 50: 139; 56: 1-2 alemon 56: 3, 9 (Scalatella) beardsleana 48: 88 densecostata, see minor d. elegans 48: 88 expansa, see jamaicensis e. gracilis 48: 87 gracilis media 48: 87 gracilis parva 48: 87 hilliana 48: 87 inornata 48: 88 jamaicensis 48: 87 jamaicensis expansa 48: 87 lyrata 56: 4 media, see gracilis m. microglypta 48: 88 minor 48: 87 minor densecostata 48: 83, 87, pi. 3 parva, see gracilis p. pealei 48: 87 pumila, see striosa p. pygmaea 48: 88 pyramidata 48: 88 173 Geomelania INDEX TO (Chittia) sinuosa 48: 88 striosa 48: 88 (Scalatella) striosa pumila 48: 83, 88, pi. 3 vicina 48: 87 Geomene 41: 124; 54: 132 geometricus, Unio 36: 127-8 Geomitra 37: 108 (Caseolus) abjecta 35: 13 actinophora descendens 35: 14 (Disculella) cenourensis 35: 12 cheiranthicola 35: 13 compar 35: 13 coronula 35: 14 dealbata 35: 13 (Spirorbula) depauperata 35: 13 descendens, see actinophora d. (Disculella) fictilis 35: 13 leptoticta 35: 13 micromphala 35: 13-4 polymorpha poromphala 35: 14 spirulina 35: 13 georgiana, Alasmidonta 36: 83, 130 georgiana, Lasmigona 36: 129 georgiana, Rehderia 60: 108 georgiana, Tellina 59: 35-6 georgianum, Pleurobema 36: 78, 80 georgianus, Colus (Aulacofusus) 51: 125 georgianus, Somatogyrus 50: 18; 58: 9 georgianus, Unio 36: 79 georgianus, Viviparus 38: 62, 110, 135; 55: 3, 83, 88-90, 125-6 georgianus altior, Viviparus 55: 88-90 georgianus fasciatus, Viviparus 55: 88 georgianus limnothauma, Viviparus 55: 89 georgianus walkeri, Viviparus 55: 88-90, 115-8 georgianus wareanus, Viviparus 55: 88, 90 Georissa 42: 70 striata 41: 32 Geoscala -- subgenus of Brachypodella Geotrochus 44: 68; 49: 67 conus 49: 67 trobriandensis 49: 91 zonatus 49: 67 gerardensis, Partula 47: 24 gerhardti, Unio 37: 142-3 gerhardtii, Goniobasis 56: 132; 58: 44 germana, Goniobasis 41: 59 germana, Polygyra 35: 37; 36: 106; 47: 13, 112 germana vancouverinsulae, Polygyra 36: 37-8; 43: 142 gesneri, Gsniobasis 42: 30 gesneri, Margaritana 36: 131 gesneri, Strophitus 36: 130 gevesensis, Anapullarius 37: 75-6, pi. 4 ghiesbreghti, Lysinoe 58: 117 Ghiesbreghtia 55: 52, 54 -- also as subgenus of Euglandina gibba. Cassis 52: 74 gibba, Corbula 40: 42-3, 45 gibba, Ostrea 38: 113 gibba, Partula 55: 2 gibba, Semicassis 52: 74-7, pi. 5; 54: 20; 58: 61 gibba abbreviata, Semicassis 52: 74, pi. 5 gibba inflata, Semicassis 52: 75 gibber, Nerita 37: 48 gibbera, Goniobasis 58: 46 Gibberula jewettii 58: 100 pyriformis 58: 100 regularis 58: 100 subtrigona 58: 100 Gibbium 53: 33-4 gibberulus, Strombus 55: 2; 60: 55 gibboni, Solaropsis 51: 115 gibboni fairchildi, Solaropsis 51: 115, pi. 9 gibbosa, Anculosa 35: 11 gibbosa, Cyphoma 50: 103-4; 52: 108; 53: 1-3, 39, pi. 1; 56: 109; 58: 38, 61 gibbosa, Ellipsostoma 43: 2 gibbosa, Goniobasis 41: 60-1 gibbosa, Melania 41: 60; 43: 6 gibbosa, Olivancillaria 42: 13 gibbosa aurantia, Olivancillaria 42: 13 gibbosa candicans, Olivancillaria 42: 13 gibbosa cingulata, Olivancillaria 42: 13 gibbosa flavescens, Olivancillaria 42: 13 gibbosa fulgurans, Olivancillaria 42: 13 gibbosa mediocincta, Olivancillaria 42: 13 gibbosa, Plicatula 37: 54; 39: 83; 58: 57; 60:19 gibbosum, Cymatium 37: 124; 52: 45 gibbosum, Sphaerium, see S. notatum g. gibbosus, Crassatellites 37: 128; 46: 10 gibbosus, EUiptio 36: 19 gibbosus sterkii, Elliptio 35: 133; 36: 19 gibbosus, Unio 36: 97 gibbsii, Eucrassatella 56: 13 Gibbulina 36: 63 gibbum, Buccinum 52: 74 gibbus, Pecten (Plagioctenium) 38: 113, 115; 39: 83; 49: 132-3; 54: 21; 58: 57 gibbus amplicostatus, Pecten 38: 113; 54: 21 gibbus borealis, Pecten (Plagioctenium) 38: 49, 114 gibbus irradians, Pecten 37: 54 gibbus, Tagelus 41: 15; 42: 84; 43: 64; 54: 21; 56: 142; 58: 59; 60: 19 Giffordius corneliae 43: 143 pinchoti 43: 142 gigantea, Anodonta, see A. grandis g. gigantea, Fasciolaria 36: 11; 37: 55; 40: 100; 43: 63, pi. 4; 50: 3, 5; 55: 64; 58: 62 gigantea reevei, Fasciolaria 36: 11 gigantea, Glycymeris 46: 109, 111, 115; 48: 4; 52: 45 gigantea, Helicostyla, see H. fulgetrum g. gigantea. Helix, see H. portosanctana g. gigantea, Lottia 50: 4^ gigantea, Macrocallista 37: 55 gigantea, Margarites, see M. olivacea g. gigantea, Megalonaias 36: 48; 39: 88; 40: 66; 45: 56; 47: 29-30; 56: 144 174 THE NAUTILUS Glypta gigantea, Ostrea 37: 48 gigantea, Rotella 40: 142 giganteum, Sphaerium 43: 95 giganteus, Dendronotus 36: 90, 95, pi. 3 giganteus, Hinnites 37: 41; 40: 81; 43: 50; 47: 36; 49: 29 giganteus, Saxidomus 38: 24; 43: 50; 44: 92; 47: 102; 53: 108 giganteus brevis, Saxidomus 43: 50 gigantina, Chama 37: 48 gigas, Ampullaria 41: 63 gigas, Discodoma 44: 139 gigas, Ostrea 37: 48; 49: 1; 52: 140 gigas, Siphonaria 45: 75; 46: 44-5; 59: 108 gigas characteristica, Siphonaria 46: 45 gigas, Strombus 35: 118, 120-1; 38: 58, 62, 86; 53: 38; 58: 37; 60: 46-8, pis. 5, 6 gigas horridus, Strombus 54: 74 gigas verrilli, Strombus 60: 46-8, pis. 5-6 gigas, Tridacna 35: 61; 43: 141; 54: 107 gillei, Cypraea 58: 107 gilli delmontensis, Turbonilla 50: 101 gilli, Viviparus 44: 36 gillianus, Viviparus 44: 36 gilva, Helix 52: 78 gilvus, Helix (Helicogena) 52: 77-8 Gisortia 40: 18 Glabaris 36: 7, 9; 43: 128 grijalvae 36: 9 napoensis 45: 17 glaber, Streptaxis 39: 1; 57: 48 glaber normalis, Streptaxis (Odontartemon) 38: 86 glaber. Turbo 44: 36 glaberrima, Happia41: 126 glabra, Anomia 41: 15 glabra, Aplexa, see A. hypnorum g. glabra, Laevaricella (Boriquena) 55: 26, 29-30, pi. 1 glabra, Marsenina 39: 132 glabra, Tellina 37: 48 glabra. Varicella 53: 107 glabra gracilior, Varicella 53: 107 glabratus, Lagochilus 55: 43 glabratus, Planorbis 41: 54 glabrum. Caecum 46: 122; 49: 92 glabrum, Dentalium 46: 122 glabrum, Onchidium 51: 87 glabrum, Sphaerium, see S. notatum g. glaciale, Buccinum 37: 48; 50: 101-2 glaciale morchianum, Buccinum 50: 102 glaciale parallelum, Buccinum 50: 101-2 glacialis, Cuspidaria 40: 23 glacialis, Leda 51: 9 glacialis, Pandora 40: 23 glacialis, Yoldia 51: 9 gladiator, Conus 52: 44; 57: 4 glandiformis, Streptostyla 55: 60 Glandina mazatlanica 44: 83 mazatlanica abbreviata 44: 83 truncata 51: 48 glandina, Rivularia 56: 129 Glandinella 55: 25 glandula, Crenella 35: 32; 40: 23 glandulosa, Hemphillia 39: 143; 50: 139 glans, Cerion 38: 60; 49: 112 glans, Conus 60: 56 glauca, Crepidula 37: 55; 39: 39; 56: 144; 58: 61; 60: 75 glauca convexa, Crepidula 38: 50; 56: 61, 143 -- see also C. convexa g. glauca, Neverita 37: 125 glauca, Polinices 52: 46 glaucum, Cassis 41: 72 glebulus, Unio 51: 49 globosa, Acanthodoris 39: 60 globosa, Ampullaria 41: 63-4 globosa, Astarte 40: 24 globosa, Cleotrivia 60: 51-2 globosa, Marsenina 53: 41, pi. 8; 56: 63, pi. 3; 58: 18 globosa, Panopea 47: 46 globosa, Physopsis 58: 146 globosa, Rhysota 46: 105 -- see also R. lamarckiana g. and R. sagittifera g. globosa, Rivularia 56: 129 globosus, Strophocheilus 41: 96; 42: 21 globula, Melania 35: 11 globularis, Dentellaria 44: 138 globulus, Cassis 52: 74 globulus, Cypraea 37: 48 globulus, Pustularia 57: 23-4 gloria-maris, Conus 37: 72; 44: 105 gloriosa, Nuculana 53: 17 Glossaulax 42: 113 glossema, Terebra 53: pi. 12; 56: 65, pi. 6 Glossodoris 49: 59, 61 clenchi 49: 59, 61, pi. 4 roseopicta 49: 61 zebra 49: 61 * gloynei, Alcadia 48: 12 Glycymeris 36: 34; 43: 109; 46: 109; 47: 81; 57: 37; 59: 104 amboinensis 60: 56 americana 36: 11; 49: 133; 56: 13; 58: 57 assimilis 47: 86 chemnitzii 37: 127 delesserti 47: 85-6 gigantea 46: 109, 111, 115; 48: 4; 52: 45 inaequalis 37: 127 maculata 37: 127; 48: 4 pectinata 36: 11; 39: 82; 49: 116; 58: 57 septentrionalis 53: 22 subobsoleta 43: 109 Glyphognomon -- subgenus of Retinella Glyphostoma elsae 54: 51 pilsbryi 54: 51 Glyphyalinia 41: 83; 44: 104 -- also as subgenus of Retinella burringtoni 41: 83 cumberlandiana 42: 90 indentata 41: 83; 42: 20, 66; 43: 58, 67, 118; 44: 17, 45, 88, 129; 45: 34; 58: 69 rhoadsi 41: 83; 44: 128 sculptilis 42: 92 glypta, Nassarina 50: 21 175 Glyptelasma INDEX TO Glyptelasma 41: 105 Glyptorhagada kooringensis 51: 24 Glyptostoma 53: 143 Gnathodon cuneatus 43: 35 glyptus, Murex 51: 89 gnidia, Chione 37: 129; 44: 94; 46: 111; 55: 121; 57: 5 gnote, Chondropoma 48: 144 goldii, Endodonta 41: 128 goldii, Radiodiscus 41: 128 goldfussi anacachensis, Holospira38: 39,41 goliath, Strombus 55: 108 gomesiana, Discula 35: 13 gonavensis, Alcadia 54: 70 Gonaxis 41: 127 Gongylostoma 55: 70 Gongylostomella 55: 70 goniasmos, Pleurodonte, see P. fuscola- bris g. Gonidea 41: 86; 46: 4 angulata 48: 48 Goniobasis 35: 1; 38: 48, 90, 130, 133, 135-9; 41: 60-1, 75, 86-9; 42: 64; 43: 70, 77; 44: 39, 56, 60, 115, 118; 46: 4-5, 29, 38; 47: 49, 123; 48: 56, 94, 96, 107, 130, pi. 4; 49: 66; 50: 83, 107-8; 51: 69, 91, 134; 52: 125-7; 53: 74-6; 54: 9-10, 37; 58: 7, 34-5, 41, 44, 47; 59: 112 abbevillensis 42: 29 abbreviata 41: 60 acutacarinata 50: 84; 52: 126; 56: 133 acutifilosa 48: 96, 134 acutifilosa pittensis 48: 134 acutifilosa siskiyouensis 48: 96, 134 aequalis 41: 60 alabamensis 58: 45 albanyensis 42: 30 angulata 56: 132 arachnoidea 38: 47; 41: 58; 42: 31; 56: 133 arnoldiana 48: 15 aterina 50: 84; 52: 125 auricoma 41: 60 bairdiana, see silicula b. bellula 58: 45 bentonensis 42: 29-30; 58: 44 brevis 41: 58; 58: 46 bulbosa 48: 95; 49: 66 bulimoides 48: 95 buUula 58: 45 caelatura 50: 107; 58: 44-5 cahawbensis 54: 9; 58: 44 caliginosa 36: 116 canbyi 42: 29 capillaris 50: 107; 58: 45 carinifera 40: 9-10; 42: 116; 46: 35-6; 56: 132; 58: 44 carinocostata 54: 9; 58: 44 carterii 50: 128-9 catenaria 38: 47-8; 41: 52; 42: 28, 30-2, 67 catenaria postellii 52: 131 chacei 48: 132-4 circumlineata 46: 4-5; 48: 96-7, 130-1 clausa 58: 45 clavaeformis 52: 126; 56: 132-3 clenchi 38: 46-7; 42: 31 columbiensis 50: 82, 84 comalensis 42: 28, 32 comalensis Continalis 42: 32 coquillensis 48: 131-4 correcta, see livescens c. costifera 35: 2 couperii 42: 29 crenatella 42: 32; 58: 45 curreyana 40: 8, 66 dallesensis, see hemphilii d. depygis 35: 2; 41: 61; 43: 5-6 dooleyensis 38: 48 downieana 42: 29 draytonii 48: 95, 131, 133 ebenum 41: 58; 52: 128; 53: 75-6; 56: 132 edgariana 36: 115-8; 42: 32; 53: 75-6; 54: 11 effosa 51: 91 eliminata 35: 2 elliottii 38: 48 emeryensis 41: 59; 56: 132 endlichi 44: 36 etowahensis 42: 67 fascinans 58: 45 fontinalis, see comalensis f. fusiformis 41: 58; 58: 46 gerhardtii 56: 132; 58: 44 germana 41: 59 gesneri 42: 30 gibbera 58: 46 gibbosa 41: 60-1 grisea 41: 61 haldemani 45: 64 hallenbecki 42: 29-30; 51: 91 hannibali 36: 142 hartmaniana 58: 46 haysiana 58: 45 hemphilii 48: 96-7, 134 hemphilii dallesensis 48: 97, 134 hemphilii maupinensis 48: 97 hydei 41: 58 impressa 38: 67; 50: 107; 58: 46-7 inclinans 42: 30, 67 indianensis 35: 2; 38: 132 infantula 41: 61; 43: 6-7 iioformis 41: 60-1; 43: 6-7 interioris 58: 34 interrupta 56: 132 jonesi 58: 45 kettlemanensis woodringi 48: 15 lachrmya 58: 45 (sic) laeta 38: 67; 58: 46 laqueata 36: 116, 119; 40: 8-9, 66; 41: 58; 42: 32; 53: 76; 56: 132-3 laurae 58: 34 lawrenci 41: 62 lithasiodes 38: 44 176 THE NAUTILUS Gossei livescens 35: 3; 38: 43-4, 144; 43: 70; 44: 46, 56-7, 60, 62-5; 45: 64; 46: 36; 47: 35, 49; 50: 83-4; 52: 128; 54: 9; 56: 33; 59: 110, 112 livescens correcta 44: 115 louisvillensis 35: 2; 41: 61; 43: 6-7 macglameriana 58: 46 maupinensis, see hemphilli m. milesii 38: 44 multilineata, see virginica m. murrayensis 38: 136 nassula 36: 116; 38: 135: 40: 9, 11; 42: 32 newberryi 48: 95; 49: 66 nickliniana 41: 60; 60: 5-6 nigrina 48: 15, 134; 49: 66; 50: 84 obscura, see yrekaensis o. occata 48: 96 olequahensis 36: 142 opaca 41: 59 oregonensis 48: 95 orickensis 48: 130, 134 ornata 58: 44 ozarkensis 38: 45 papulosa 41: 52; 42: 67 perstriata 38: 135 pilsbryi 41: 58: 58: 46 pittensis, see acutifilosa p. plebeius 38: 45-6; 41: 61 plicatostriata 56: 132 plicifera 41: 75; 48: 95; 50: 84 plicifera silicula 45: 35 porrecta 42: 28, 31-2 postellii 42: 67 -- see also catenaria p. potosiensis 38: 45 procissa 41: 59 proxima 40: 11; 50: 84; 52: 125; 56: 132 pulchella 43: 70 pupaeformis 58: 46 purpurella 36: 119 pygmaea 58: 46 rubiginosa 48: 95 rudens, see silicula r. semicarinata 35: 2; 38: 130, 132; 41: 61 shastaensis 48: 131-2, 134 showalteri 38: 67; 41: 58 silicula 41: 75; 42: 64; 48: 94, 96 -- see also plicifera s. silicula bairdiana 48: 94, 96 silicula rudens 48: 94 silicula shastaensis 48: 94-5, 97 simplex 35: 3; 41: 61 siskiyouensis. see acutifilosa s. sordida incurta 41: 59 striatula 58: 44 stewardsoniana 41: 59 symmetrica 45: 59 tabulata 41: 60 tenuicarinata 50: 127 tenuicarinata whiteavesi 44: 33 teres 56: 132 thorntonii 42: 32 troostiana 38: 47; 51: 91 undulata 42: 67 vanhyningiana 42: 30 vanuxemiana 58: 45 virginica 35: 10; 43: 34, 88; 45; 59-61; 47: 35; 48: 34; 54: 36; 59: 110-2 virginica multilineata 59: 111 vittata 41: 58 vittatella 42: 32 wheatleyi 58: 45 whiteavesi, see tenuicarinata w. wuodringi, see kettlemanensis w = yrekaensis 48: 95, 97-9, 131, 134 yrekaensis obscura 48: 98 Goniodiscus 40: 107; 45: 82, 85; 50: 119 (see also Gonyodiscus) anthonyi 43: 68 patula 38: 86; 39: 80 perspectiva 43: 68 goniogyra, Oreohelix, see O. strigosa g. goniogyrus, Teinostoma 59: 2-3, pi. 1 goniosoma, Polygyra, see P. fallax g. goniostoma.Turritella37: 125; 46: 110; 52: 46; 55: 115 Gonyodiscus 43: 54 -- also as subgenus of Discus and Pyramidula anthonyi 42: 135 cockerelli 40: 117 cronkhitei 35: 36; 40: 77, 113; 42: 124; 43: 55, 58, 62, 133; 44: 114; 45: 84, 86; 46: 128 cronkhitei anthonyi 38: 92-3; 40: 53-4, 113; 41: 20; 42: 15, 125; 43: 42-4, 81, 110, 133; 44: 38, 45, 88; 47: 2; 50: 120; 51: 57, 140 cronkhitei catskillensis 45: 34; 47: 139 macclintocki 41: 133-4; 44: 22 macclintocki angulata 41: 134 pauper 41: 40 perspecti\ais 38: 65; 41: 134; 44: 17, 22; 45: 85; 46: 91; 48: 81; 50: 120; 51: 57 ralstonensis 50: 128 ruderata 41: 42 sandersoni 44: 33 shimekii 40: 117; 41: 134 shimekii cockerelli 37: 79; 38: 65; 42: 125 striatellus 37: 132 goodalli, Cypraea 52: 105 goodalli, Opeas 50: 132; 57: 48; 58: 84, 86 goodalli, Stenogyra 48: 84 goodrichi, Vi^lparus, see V. contectoides g. Goodrichia 43: 106; 45: 71-2 angulata 45: 71 nyongensis 45: 71 pilsbryi 45: 71 trochiforniis 43: 107; 45: 71 trochiformis pilsbryi 43: 107 gordoni. Kurtzia 58: 108 gordurasensis, Endodonta 41: 128 gossei, Alcadia 48: 12 gossei, Ampullaria 46: 94, 96, pi. 8; 54: 67 gossei, Macroceranius 50: 139 gossei, Microceramus 38 : 61; 49: 56 177 Gossei INDEX TO gossei, Varicella 49: 25 gothicus, Trachydermon 58: 100 gouldi, Jajoonia 55: 42 gouldi, Lyonsia 37: 41 gouldi, Physa 48: pi. 7; 49: 30, 32; 50: 116 gouldi, Scalaria 51: 5 Gouldia cerina 49: 118 gouldiana. Bulla 52: 44 gouldiana, Bullaria 36: 34; 37: 41 gouldiana, Fadyenia (Blandia) 48: 14 gouldiana, Pandora (Clidiophora) 38: 49; 56: 142 gouldianum, Chondropoma, see C. poeyanum g- gouldii, Columbella (Nitidella) 38: 27 gouldii, Cryptodon 51: 9 gouldii, Donax 37: 83-4 gouldii, Mitrella 50: 47 gouldii, Retusa 35: 32 gouldii, Terebra 55: 2 gouldii, Thyasira 38: 24; 40: 24 gouldii, Vertigo 40: 47, 58; 41: 135; 44: 22, 135; 50: 98; 51: 105; 52: 94; 53: 47 gouldii arizonensis, Vertigo 54: 117; 55: 143 gouldii loessensis, Vertigo 41: 135 goyettensis, Placostylus, see P. poyensis g. graceae, Tritonalia 53: 84, pi. 10 gracile, Deroceras 55: 143; 56: 54; 57: 112-3; 58: 16, 68, 79 -- see also D. laeve g. gracile, Opeas 39: 2, 42; 40: 90, 143; 52: 29-30; 58: 87-8 gracilentus, Tropicorbis 58: 32 gracilicosta, Vallonia 37: 79; 41: 20; 42: 94, 123, 135; 43: 56; 44: 40; 45: 116, 50: 14; 54: 28, 31, 96, 117; 55: 143-4 gracilior, Achatina 53: 107 gracilior, Stectoplax 58: 102 gracilior, Strombus 55: 114 gracilior. Varicella 49: 25 -- see also V. glabra g. gracilis, Anoma 49: 57 gracilis, Brachypodella 49: 58 gracilis. Bulla 35: 46 gracilis, Donax 37: 82, 130 gracilis, Gastrocopta, see G. pentodon g. gracilis, Geomelania 48: 87 gracilis media, Geomelania 48: 87 gracilis parva, Geomelania 48: 87 gracilis, Lamellaxis (Allopeas) 48: 84; 49: 25; 58: 85, 88-91 gracilis, Lampsilis 35: 132; 36: 99 gracilis lacustris. Lampsilis 35: 131-2 gracilis, Limax 35: 79 gracilis, Olivella 47: 47; 52: 45 gracilis, Unio 39: 91 gracilis, Veronicella 41: 129 gracillima, Tritonalia 37: 42 gracillima. Varicella 40: 91 gracillima floridana. Varicella 37: 69; 55: 26 gradata, Acar 45: 142 gradata. Area (Barbatia) 37: 127; 45: 127-8; 46: 28-9 gradata, Barbatia 45: 128 graeffei, Drepania 45: 32 grahami, Viviparus, see V. quadratus g. graminicola, Cepolis 56: 85, 90, pi. 9 graminicola, Cepolis (Hemitrochus) 49: 56; 56: 85-6 granadensis, Unio 57: 14-5 grandidieri, Imerinia 44: 137 grandidieri, Vaginula 39: 14; 44: 136 grandimaculata, Pleurotoma 45: 52 grandis, Anodonta 36: 7, 9, 97-8, 126-7; 39: 91; 41: 19; 44: 47, 90, 130; 52: 99, 101: 55: 20, 108; 59: 29, 110 grandis benedictensis, Anodonta 36: 97; 42: 51 grandis decora, Anodonta 42: 51 grandis footiana, Anodonta 36: 24; 38: 10; 39: 122; 40: 50; 42: 51, 96, 115, 136 grandis gigantea, Anodonta 36: 98; 39: 91 grandis grijalvae, Anodonta 36: 9 grandis imbricata, Anodonta 38: 10 grandis kennicotti, Anodonta 36: 98 grandis pepiniana, Anodonta 36: 98 grandis plana, Anodonta 42: 115 grandis, Area 49: 18; 52: 44; 57: 5 grandis, Area (Scapharca) 37: 127; 45: 79; 46: 111 grandis, Fossaria, see F. dalli g. grandis, Haminea 40: 144 grandis, Lampsilis, see L. higginsii g. grandis, Littorina 47: 102 grandis, Ostrea 38: 112 grandis, Pecten (Placopecten) 38: 112; 39: 39, 131; 40: 23; 44: 99; 50: 56; 56: 141; 57: 67; 59: 69 grandis, Sagda 49: 53, 98 Grangerella 44: 33 mcleodensis 44: 33 megastoma 50: 128 sinclairi 50: 128 grangeri, Oreohelix 50: 128 granifera, Cyclonaias 36: 48 granifera, Quadrula 36: 48 graniferum, Cardium 37: 128 granitella, Oliva, see O. tremulina g. granitensis, Micrarionta 49: 70; 59: 103 graniticola, Helminthoglypta 40: 140; 43: 73; 44: 125; 45: 21 graniticola arida, Helminthoglypta 44: pi. 7; 45: 20 granitina, Odostomia, see O. impressa g. Granodomus 44: 140 Granopupa 36: 63-4 granum 50; 9 granosa, Fasciolaria 45: 79; 52: 45 granosa, Neritina 40: 80 granosa, Unio 44: 41 granosa, Venus, see V. chama g. granosissimus, Modiolus, see M. demissus g. granosus, Diplodon 44: 41; 57: 48 178 THE NAUTILUS Gularis granti, Megasuri-ula 58: 108 granti, P.seuduchama 47: 137, pi. 8; 52: 49 granulata, Acanthopleura 35: 120-1 granulata, Architectoiiica 37: 125; 43: 35; 51: 91; 52: 44; 54: 20 granulatum. Buccinuni 37: 48; 52: 76 granulatus, Brachidontes 56: 32 granulatus, Murex 37: 48 granulatus, Strombus 46: 109 granulatus, Trochus 37: 48 granulosa, Clausilia 35: 95 granulosa, Lucidella 48: 13 granulosa undulata, Lucidella 48: 13 granulum, Cyclostrema 53: 53; 59: 54-5 granulum, Fossarus 59: 54 granum. Amnicola 42: 55 granum. Granopupa 50: 9 granum. Lyogyrus 47: 149 granum. Spira.xis (Recta.xis) 53: 49-51, 93, pi. 9. 11. graphicus, Liguus 60: 44-5 -- see also L. solidus g. Graptostracus 53: 29 grata, Happia 41 : 126 grata, Paphia 47: 46 grata, Tapes 45: 79 grata, Venerupis (Protothaca) 53: 108 grata, Venus 51: 49 gratiosa, Oliva, see O. ispidula g. gravesii, Urocoptis 49: 57 gravida, Laminella 38: 79 gravieri, Veronicella 39: 14-5 grayana, Adamsiella 48: 64 grayana, Assiminea 54: 119-20 grayana, Eutrochatella, see E. pulchella g. grayana, Leila 36: 9 grayanus, Bulimus 60: 57 grayanus, Hipponi.x 46: 45; 52: 45 gr^yi, Cardita 52: 44 gredleri, Diana 58: 134 gredleri, Paraprososthenia 58: 134-5, pi. 6 gredleri, Prososthenia 58: 134 greeni, Ptychobranchus 37: 56-8 greeni flavescens, Ptychobranchus 37: 57 greenii, Cerithiopsis 46: 119; 56: 143 greenii, Cerithiuni 46: 119 greenlandicum. Epitonium 39: 132 greggi, Helminthoglypta 44: 124-5, pi. 7 greggi. Hydrobia 48: 93 Greggiella 54: 131 -- also as subgenus of Haplotrema gregoryi, Avicula 43: 22, pi. 1 gregoryi. Teredo 60: 53 grilfithiana, Anculosa 46: 38; 58: 42-3 griflithii ischna. Varicella 49: 26 grigona, Paphi.; 60: 57 grijalvae, Anodonta, see A. grandis g. grijalvae, Glabaris 36: 9 grippi, Moniliopsis 55: 141 grisea, Goniubasis 41: 61 grisea, Melania 41: 61-2 grisea, Ochtliephila, see O. rotula g. grisea, Partula 50: 53 griseola, Praticolella 38: 61; 40: 90; 59: 144 griseolum, Pisidium 37: 30 groenlandica, Margarites 39: 131 groenlandica incarnata, Margarites 39: 131 groenlandica, Polinlces 35: 32: 39: 132 groenlandica, Succinea 39: 32; 54: 74; 60: 108 greenlandicum, Buccinuni 39: 134 gronlandicum album, Cardiuni (Aphrodite) 60: 70 groenlandicum, Epitonium 35: 32 gronlandicus, Pecten 54: 5 groenlandicus, Serripes 38: 24; 40: 25; 46: 125; 47: 102; 54: 2 grossa, Melania 53: 76 grossa, Vaginula 39: 14; 44: 136 grosvenori, Margarites 40: 104; 54: 3 grosvenori, Succinea 40: 118-9; 41: 20; 42: 16, 94, 125; 43: 35, 82; 44: 22; 46: 128; 49: 6-7, 10; 53: 64, 77-8, 133 grosvenori gelida, Succinea 40: 118-9; 41: 136; 44: 22 grosvenorii, Succinea 57: 131-2 groviana, Leptaxis (Cryptaxis) 35: 102 grubii, Valvata 41: 41 grus, Venus 49: 119 Gruvelia 42: 108 guadalupensis, Bulimulus 49: 56 guadalupensis, Bulimus 36: 32 guadeloupensis. Helix, see H. badia g. guadeloupensis, Mulinia 60: 19 guadeloupensis, Pleurodonte 51: 26-7, 34, pi. 2 guadeloupensis dominicana, Pleurodonte 51: 28, 34, pi. 2 guadeloupensis roseolabrum, Pleurodonte 51: 26-8, 34, pi. 2 gualtieriana, Carocolla 59: 117 gualtierana. Helix 44: 138 gualtieranus, Iberus 59: 117 guanensis, Pleurodonte 40: 90 guaraniticus, Lyrodes 52: 87 guatemalensis, Agriolimax 37: 28 guatemalensis, Columbella (Anachfs) 45: 143 guatemalensis, Cyrenoida 45: 69 guaymasensis, Semele 47: 47 guaymasensis, Vitrinella 55: 121, 124-5, pi. 8 gubernatorium, Cerion 51: 22 gudei, Kaliella 41: 40 guestieri, Placostylus 42: 75-7 guestieri gatopensis, Placostylus 42: 77 Guestieria 38: 88; 41: 126 Guianadesma 57: 49, 51 sinuosum 57: 49, 52, pL 8 guildingi, Happia (HappicUa) 38: 87; 41: 126 guildingi, Tellina 54: 71 guillarniodi, Leptarionta 40: 65 Guillarmodia 55: 52, 54, 57 -- also as subgenus of Euglandina guineensis, Corbula 40: 42 gularis, Gastrodonta 35: 44; 39: 80; 42: 90-1 179 Gularis INDEX TO gularis, Helix 59: 119 gularis, Ventridens 46: 59; 47: 147; 53: 86 gularis decussata, Ventridens 45: 139 gularis, Zonitoides 48: 81 Gulella 40: 108; 49: 93-5 bicolor 39: 1, 31 pilsbryi 49: 95, pi. 6 pumilio 49: 93-5, pi. 6 Gulnaria auricularia lanuginosa 52: 59 kamtschatica 52: 59 ovata patula 52: 59 peregra middendorffi 52: 59 peregra pseudo-elongata 52: 59 gumniea, Leptachatina 38: 81 gundlachi, Cecilioides 44: 140 gundlachi, Chondroponia 40: 89 gundlachi, Guppya 37: 67-9; 49: 25 gundlachi orosciana, Guppya 49: 25 gundlachi, Melampus 38: 61 -- see also M. coffeus g. Gundlachi 38: 66; 44: 66; 58: 14 burnupi 40: 105 californica 41 : 141 lutzi 39: 32 meekiana 58: 14 Guppya 36: 36; 40: 64 gundlachi 37: 67-9; 49: 25 gundlachi orosciana 49: 25 sterkii 37: 66-7; 40: 47-8; 42: 20; 53: 47 gussoni, Spondylus 51: 38 guttata, Littorina 40: 39 guttata, Marginella 39: 85; 54; 63; 56: 112, 115, 123, pi. 14; 58: 39 guttata, Mitrella, see M. ocellata g. guttata, Oliva 42: 10 guyanensis, Modiolus 45: 73-4 Guyonia 42: 108 gvaltieriana, Carocolla 44: 138 gwatkiniana, Rhodacmaea 58: 14 Gyliauchen 36: 63 Gymnocentrum 55: 105 gyrata, Succinea 39: 43 Gyraulus 43: 54; 44: 77; 46: 6, 9; 47: 28, 77; 49: 46-7; 51: 126; 55: 130-2; 56: 8; 57: 132; 58: 12, 78; 59: 70 -- also as subgenus of Planorbis albolineatus, see vermicularis a. altissimus 44: 22; 45: 118; 50: 116; 51: 130-1 annectans 47: 27 carus 47: 17 circumstriatus 42: 133 cressmani 55: 130-1, pi. 8 deflectus 42: 58, 133, 136; 46: 9; 50: 116; 59: 27, 29 deflectus obliquus 42: 58, 136; 46: 9; 50: 116 filocinctus 48: 34 hendersoni, see vermicularis h. hirsutus 48: 110; 59: 27, 29 hornensis 50: 114, 116 latistonius 46: 9 monocarinatus 47: 27-8 obliquus, see deflectus o. parvus 40: 50; 42: 58, 105; 43: 42, 119; 44: 46, 88; 45: 110, 118; 52: 15, 61; 53: 78, 134; 54: 128-30, 144; 56: 54; 57: 45-6; 58: 12, 69; 59: 21, 29 parvus walkeri 42: 105 pattersoni 51: 129-30 santacruzensis 48: 34 similaris 50: 14, 32 umbilicatellus 42: 133; 45: 118 vermicularis 42: 105, 125; 43: 59; 47: 3; 48: 140-1; 53: 127; 54: 29, 54 vermicularis albolineatus 47: 78, pi. 6 vermicularis hendersoni 42: 104 walkeri, see parvus w. gyrina, Gyrineum 60: 55 gyrina, Physa 37: 25; 38: 15; 39: 126; 40: 51, 55, 61, 114; 42; 134, 140; 43; 84, 88; 44; 89, 130; 45: 118, 121, 123; 48; 59, 110; 52: 15; 54: 7, 84; 55: 32; 56; 132; 58: 13, 78; 59: 110 gyrina byersi, Physa 40: 141 gyrina hildrethiana, Physa 40: 61 gyrina, Physella 43: 119 gyrina elliptica, Physa 53; 135 gyrina elliptica, Physella 43; 42 gyrina hildrethiana, Physella 44; 46 Gyrineum 47: 57 gyrina 60; 55 perca 47: 57 perca edgerlyi 47: 57, pi. 6 Gyrotoma 38: 67; 49: 77; 58: 2, 7, 46-7 alabamensis 58: 47 amplum 58: 48 cariniferum 58: 47 excisum 58: 47 hendersoni 38: 67; 58; 47 impressa 38: 67 incisum 58: 48 laciniatum 58: 47 laeta 38: 67 lewisii 58: 47 pagodum 58: 47 pumilum 58: 47 pyraniidatum 58: 47 showalteri 38: 67 spillmanii 58: 47 walkeri 58; 48, 67 gyrus, Trochus 37: 48 haasi, Cipangopaludina 56: 127 Habroconus 40: 64 Habropoma 36: 15; 40: 63 hachetana, Oreohelix 36: 119 hachitana, Sonorella 49: 110 hachitana orientis, Sonorella 49: 110 haemastoma monochroa, Acavus 44: 100 haemastoma concolor. Helix 44: 100 haemastoma floridana. Purpura 41:141 haemastoma, Thais 38: 62 haenensis, Leptachatina 41: 103 hagleri, Pleurobema 36: 81 hainanensis, Cipangopaludina, see C. chinensis h. 180 THE NAUTILUS Haplotrcma hainesi, Macrochlamys 43: 53 haitensis, Alcadia 54: 71 haldemani, Acella 42: 97; 44: 107; 46: 107 haldemani, Ancylus 37: 7 haldemani, Goniobasis 45: 64 haldemani, Planorbis 47: 65-6 haldemaniana, Vivipara 55: 89 haldemanni, Acella 42: 136 haleanus, Viviparus, see V^ subpurpureus h. halei, Physa 39: 12; 47: 35; 48: 110-1; 54: 107, 112; 58: 13 haleiana, Melania 38: 45; 41: 61 haleianus, Unio 36: 128 halepensis, Ena (Petraeus) 50: 11 halia, Alvania 53: 31 halibrecta, Turbonilla 45: 67 halidorema, Fenimorea 54: 50 haliotiphila, Barleeia 37: 43; 42: 1; 50: 48 Halia 36: 36 Haliotis 43: 109; 46: 108, 139; 54: 74; 56: 57; 58: 120; 60: 91-3 ambigua 37: 46 assimilis 60: 92 aulaea 54: 74; 60: barbouri 60: 108 corrugata 36: If 92 60: 92 cracherodii 37: 43; 41: 35; 50: 49; 60: 92 cracherodii holzneri 41: 35 cracherodii imperforata 41: 35 fulgens 36: 18; 37: 43; 43: 109-10; 46: 139; 56: 57; 60: 92 fulgens turveri 56: 57; 60: 92 hattorii, see rufescens h. holzneri, see cracherodii h. imperforata, see cracherodii i. kamchatkana 43: 109; 60: 92 lasia 46: 139 palaea 46: 139 ponderosa 54: 74 rufescens 43: 109-10; 50: 49; 54: 74; 60: 91-2 rufescens hattorii 54: 74 smithsoni 54: 74 sorenseni 54: 74 tuberculata 46: 139 turveri, see fulgens t. varia 60: 55 wallalensis 60: 92 Halistylus 36: 27 hallenbecki, Goniobasis 42: 29-30; 51: 91 halligani, Mecoliotia 49: 92-3 Hamachiton 39: 48 hamata, Leda 49: 14 hamata, Mangelia 58: 99 hamata, Mangilia 44: 93 hamatus, Mytilus 51: 92 hamillei, Phenacolepas 57: 32-3 Haminea 36: 134; 46: 140-1; 47: 52-3 (also spelled Haminaea and Haminoea) crocata 60: 56 cymbiformis 46: 140-1 dalli 46: 140 elegans 46: 116 grandis 40: 144 olgae 38: 25; 51: 104 solitaria 36: 60; 56: 141; 57: 31 strongi 46: 140-1 vesicula 50: 47 virescens 37: 41; 46: 140-1; 47: 37, 53-4 virescens rosacea 47: 52-3 hammonis, Polita 36: 38; 37: 79; 38: 93; 39: 124; 40: 47-8, 54, 113; 41: 20; 42: 15; 43: 62 hammonis electrina, Polita 41: 83 hammonis, Retinella 42: 135; 43: 67, 81, 118, 133; 44: 88; 45: 117; 47: 8; 48: 47; 53: 133 hammonis, Vitrea 36: 25; 37: 97; 40: 58; 41: 92; 43: 43-4 Hancockia 37: 108 handi, Oreohelix 44: 73-4; 54: 96 handi, Urocoptis 40: 74-5 hanleyana, Cerithidea 56: 22, 28 hanleyanum. Microstoma 40: 70 hanleyi, Cerithium 56: 22, 28 hanleyi, Sanguinolaria 37: 129 hannai, Amnicola 48: 16 hannai, Bulimulus 46: 74 hannai, Dentalium 39: 72 hannai, Pisidium 42: 26-7 hannense, Opeas 58: 87 hannibali, Goniobasis 36: 142 hansineensis, Olea 36: 133-6, 138, pi. 6 hapla, Polygyra 47: 14 Haplocion 53: 95 -- also as subgenus of Holospira Haplocochlias swifti 46: 120 Haploplax 39: 36 Haplotrema 41: 74, 87, 124; 43: 95, 139; 44: 142; 45: 86; 50: 87; 54: 130-1, 133-4; 55: 99-101; 56: 71-2; 59: 91 alameda 44: 67, pi. 5; 54: 131-2 alameda fieldi 44: 67, pi. 5 (Greggiella) caelatum 54: 131, pi. 9 concavum 39: 80; 44: 17, 129, 142; 45: 139; 46: 58-9, 91; 48: 21, 57, 80; 49: 100; 50: 121; 51: 56, 58-9; 53: 47; 54: 88-9, 132; 55: 7, 14-5, 96; 56: 71; 57: 132, 136; 58: 25-6, 127-8; 59: 28, 90-1; 60: 5 concavum minus 44: 142 fieldi, see alameda f. hemphilli 45: 86 hybrida, see vancouverensis h. keepi 44: 67 minimum 55: 98-101 minus, see concavum m. simplicilabris 44: 67 sportella 36: 38, 106; 48: 47; 54: 132 transfuga 44: 67, pi. 9; 51: 61 (Ancomena) transfuga 54: 131-2 vancouverense 36: 37, 106; 43: 142; 46: 104-5, 127-8; 48: 47; 53: 133; 54: 132 vancouverense hybrida 43: 142 (Ancotrema) voyanum 54: 132, pi. 9 181 Haplotrema INDEX TO haplotrema, Hyalosagda 48, pi. 8 haplotrema, Hyalosagda (Strialuna) 48: 137; 49: 52 Happia 38: 87-8; 41: 125-6 banghaasi 41: 126 glaberrima 41: 126 grata 41: 126 (Happiella) guildingi 38: 87; 41: 126 microdiscus 41: 125 vitrina 41: 125 Happiella 38: 87; 39: 34; 41: 125-6 -- also as subgenus of Happia harfordiana, Daedalochila 37: 133-4 harfordiana, Drillia (Crassispira) 39: 84 harfordiana, Helix 37: 133-4 harfordiana, Polygyra 37: 133-4 harfordiana, Polygyrella (Polygyroidea) 37: 134 harfordiana, Polygyroidea 44: 101 harfordiana, Triodopsis 37: 133-5 hargravesi, Placostylus 39: 69 hargravesi, Voluta 39: 69 Hargravesia 39: 69 haricotti, Elliptio 41: 139, pi. 3 Harpa 52: 43 crenata 46: 45; 52: 45 minor 60: 56 harpa, Acanthinula 36: 67; 39: 124; 42: 135 harpa, Purpura 35: 84; 40: 81 harpa, Pyrulofusus 46: 126 harpa, Retusa 38: 25; 51: 103 harpa, Thais 40: 80; 58: 122 harpa, Zoogenetes 40: 113; 41: 40; 50: 18; 55: 97-8 harpa, Zoogenites 38: 125; 43: 62, 104; 46: 128; 53: 132-3 harperi, Micrarionta 50: 122-4; 51: 33 harperi carrizoensis, Micrarionta 50: 123-4 harperi orcutti, Micrarionta 50: 123-4 harperi orcuttiana, Micrarionta 51: 33 harpethensis, Anculosa 35: 11 harpularia, Bela 35: 32 harpularia, Lora 38: 25; 40; 21 harrigani, Pholadomya 43: 23, pi. 1 harringtoni, Dinotropis 51: 24-5, pi. 2 harringtoni, Drymaeus 44: 33 harteri, Neosubulina 58: 85 harterti, Neosubulina 58: 86 hartii, Unio, see U. webbianus h. hartleyana, Marginella 55: 65, pi. 3 hartmani, Helicina 60: 33 hartmaniana, Goniobasis 58: 46 hartwegii, Chaetopleura 58: 100 hartwegii, Cyanopla.x 37: 43 hartwegii, Trachydermon (Cyanoplax) 38: 28 Harvella 48: 119-20 elegans 48: 119 hasta. Columella 60: 21 hastatus, Pecten 38: 91; 51: 119 hastatus pugetensis, Pecten 51: 119 Hastula 37: 61-2 -- subgenus of Terebra hastula, Melanoides 49: 75, 77-9 hatoensis, Cerion, see C. uva h. hattorii, Haliotis, see H. rufescens h. haustor, Murex 37: 48 hauxwelli, Bulimus 58: 30 havanensis, Odostomia (Miralda) 46: 118, pi. 6 havanensis, Tropicorbis 49: 104; 56: 8-9; 58: 32 havanensis insularum, Tropicorbis 56: 8-9 hawaiensis, Pupoidopsis 39: 144; 42: 70 hawaiensis. Teredo (Teredops) 58: 55 Hawaiia 50: 119 minuscula 45: 117; 47: 16-7, 147; 48: 79, 106; 50: 121; 51: 57, 105, 106; 52: 15, 29, 95-6; 53: 47, 77-8, 87; 54: 111; 55: 8; 57: 131-2; 58: 63, 69, 110 minuscula alachuana 47: 16-7 minuscula neomexicana 48: 115; 54: 30-1; 55: 144 hawaiiense, Mitromorpha 36: 122 hawaiiensis, Bankia 58: 55 hawaiiensis, Opeas, see O. clavulinum h. hawaiiensis, Perna 40: 135 hawaiiensis, Strombus 55: 2 hawkinsi, Succinea 40: 4, 59 hawni, Pseudomonotis 57: 91 haydeni, Lymnaea 47: 122 -- see also L. palustris h. haydeni, Oreohelix 35: 15; 45: 84; 46: 57-8, pi. 3 haydeni corrugata, Oreohelix 46: 57 haydeni gabbiana, Oreohelix 46: 56 haydeni hybrida, Oreohelix 46: 56 haydeni oquirrhensis, Oreohelix 43: 56; 46: 57; 54: 30 haydeni gabbiana, Patula 57: 144 haydeni, Succinea 41: 20, 93; 45: 116; 47: 9; 48: 47; 50: 99 haydeniana, Bulimus 44: 33 haydeniana, Columna 44: 33 haysae, Thais, see T. floridana h. haysiana, Goniobasis 58: 45 healdi. Teredo (Neoteredo) 45: 36 healeyi, Cypraea 38: 35 healeyi. Pecten 41: 93 healeyi, Sulcocypraea 40: 18 heathi, Lepidochitona 49: 43 healthi, Lepidopleurus 49: 42 heathii, Basiliochiton 46: 124 hebardi, Ashmunella 36: 119 hebes, Cerithium 46: 119 hebes, Pupilla 37: 79; 42: 124; 54: 96, 117; 55: 143 hebes, Triphora 46: 119 Hebetancylus 37: 9-10 adelinus 37: 16; 46: 116-7 chittyi 37: 9 cubensis 46: 116, pi. 6 moricandi 37: 10 Hebetodiscus 42: 87; 56: 56-7 -- subgenus of Helicodiscus 182 THE NAUTILUS Helicoidea hebraeus, Conus 35: 84; 36: 121 hecticu, Buccinum 37: 48 hecticum, Buccinum 37: 48 hedleyi, Lymnaea 40: 122; 41: 23-4 hedleyi, Xenophaliuni 41: 72 hegewischi, Dryniaeus 57: 29 hegewischii, Cerithidea 56: 24-5, 27; 57: 30 hegewischii albonodosa, Cerithidea 56: 25 hegewischii pulchra, Cerithidea 56: 25-6 hegewischii, Cerithium 56: 22; 57: 30 hegewischii, Cerithium (Potamides) 56: 23 heilprini, Poecilozonites, see P. blandi h. heilprini, Strepsidura 40: 69 Helcioniscus 35: 83; 46; 104 argentatus 40: 80 exaratus 35: 84; 40: 80 helga, Odostomia 37: 42 Heliacus radiatus 57: 5 variegatum 46: 110 heliacus, Pecten (Aequipecten) 38: 119 Helicarion 43: 51 Helicella 35: 98; 36: 35, 67; 40: 107; 59: 116, 118-9 caperata 44: 55 heripensis 44: 55, 66 millepunctata 50: 9 pisana 59: 119 subdentata 59: 119 ventricosa 37: 33 Heliciella 40: 134 costellata 40: 134 Helicigona 59: 116, 119 (Arianta) arbustorum 50: 134 (Chilostoma) planospira 50: 134 Helicina 38: 38, 56, 79, 135; 40: 35-6, 39, 63; 43: 134; 45: 26; 49: 105 adamsiana 41: 23 adspersa 38: 60; 40: 89 adspersa onusta 40: 89 ampliata fuscocallosa 48: 11 angulata 48: 11 ballista 44: 34 berniceia 38: 83 clappi 38: 60 conuloides 41: 22 convexa 37: 33 costata 41: 22 dichroa 48: 54 diplocheila, see neritella d. dominicensis 60: 33 dominiquensis 60: 33 evanstonensis 50: 128 fasciata substriata 56: 4 fuscocallosa, see ampliata f. gallina 43: 135 hartmani 60: 33 ignava 44: 141 ignava tabalasensis 44: 141 (Ampliata) jamaicensis 48: 11 juddii 48: 54 knudseni 38: 82 laciniosa 48: 54 (Aphanoconia) laeta 43: 135 magdalinae 48: 54 neritella 48: 11 neritella diplocheila 48: 11 neritella reducta 48: 11 nuda 41: 22 occulta 43: 111, 118-9; 44: 21, 37-8; 50: 139; 51: 92 onusta, see adspersa o. orbiculata 38: 60; 41: 52; 42: 20; 43: 35, 112; 47: 79, 147; 51: 92; 52: 115 orbiculata tropica 38: 43; 39: 11; 40: 16; 42: 66; 47: 16, 147 (Palaeohelicina) ouenensis 43: 134; 44: pi. 5 plicatilis 48: 54 posti 44: 34 (Palaeohelicina) primeana 43: 135 reducta, see neritella r. regina 41: 22 rubella 43: 111 sagriana 40: 90 (Sericea) sericea 57: 47 subfusca 41: 22 submarginata 38: 60; 40: 90 substriata, see fasciata s. tabalasensis, see ignava t. tenuis 48: 10 tropica, see orbiculata t. uberta 48: 54 verecunda 48: 54 helicina, Limacina 40: 22; 54: 4-5 helicina, Succinea 43: 37 helicinus, Margarites 38: 27; 39: 131; 54: 2-5 Helicodiscus 41: 123, 144', 42: 87; 43: 133, 144; 56: 55-6; 57: 140 apex 56: 56 eigenmanni 38: 42; 40: 17; 42: 125 fimbriatus 35: 44 (Hebetodiscus) inermis 42: 93 -- see also singleyanus i. nummus 47: 16-7; 58: 69 parallelus 36: 25; 37: 66; 40: 48, 120; 41: 20, 34, 52-3, 128; 42: 20, 86-7. 135; 43: 42-4, 68, 119; 44: 38, 45; 45: 34, 117; 47: 139; 48: 57-8, 81, 115; 49: 100; 50: 120; 51: 57, 63, 106; 52: 15, 94; 53: 47, 87; 55: 8, 14-5; 56: 55; 57: 132, 140; 58: 25-6, 110; 59: 28, 91 ramsdeni 56: 55-6 singlevanus 47: 16-7; 48: 115; 56: 55-6 (Hebetodiscus) singleyanus inermis 42: 86-7; 48: 106; 53: 47 theresa 41: 128 Helicodonta 52: 23; 59: 116, 119 obvoluta 44: 71 Helicogena 36: 32 -- subgenus of Helix Helicogona arbustorum 44: 71 lapicida 44: 71 personata 44: 71 helicoidea, Valvata, see V. lewisii h. helicoidea, Vitrinella 59: pi. 2; 60: 13, 15-6. pi. 2 183 Helicoides INDEX TO helicoides, Caracolla 51: 93 Helicolimax 42: 137, 139 lamarckii 42: 138 major 42: 136 pellucida 42: 137 Helicostyla 46: 67, 71; 48: 68; 49: 70; 57: 17; 59: 116-7, 120 aguinaldoi, see lignaria a. albolabiata, see decorata a. antoni, see chrysalidiformis a. (Calocochlea) aopta 47: 116 archeri, see subcarinata a. atra, see lignaria a. batoana, see pithogaster b. chrysalidiformis 46: 64 chrysalidiformis antoni 46: 64 chrysalidiformis calawaganensis 46: 64 cincinniformis lubanensis 44: 141 codonensis, see leopardus c. decorata 45: 103 decorata albolabiata 45: 103 decorata hybrida 45: 103 decorata jaroensis 45: 103, pi. 8 decorata malleata 45: 103 demesana 44: 141 fulgetrum 45: 104 fulgetrum gigantea 45: 104, pi. 8 galactites 46: 71 gigantea, see fulgetrum g. hybrida, see decorata h. iloilana. see ticaonica i. jaroensis, see decorata j. leopardus codonensis 48: 69 leopardus meladryas 48: 68-9 lignaria aguinaldoi 52: 92 lignaria atra 52: 92, pi. 7 lubanensis, see cincinniformis 1. malleata, see decorata m. maxwellsmithi, see virgata m. mcgintyi 46: 63 meladryas, see leopardus m. niindoroensis 46: 64 mirabilis 46: 71; 59: 120 (Calocochlea) monacha 47: 116 ovoidea 59: 119 (Corasia) physalis 57: 18 pictor 45: 103 pithogaster batoana 46: 64 subcarinata 49: 140-1 subcarinata archeri 49: 140, pi. 8 (Corasia) subpuella 57: 18 sulana, see turbinoides s. ticaonica iloilana 45: 102, pi. 8 (Calocochlea) tukanensis 57: 17 turbinoides sulana 46: 65 ultima 44: 141 virgata 57: 71 virgata maxwellsmithi 46: 65 heligmoidea, Helix 52: 23 heliguioidea, Polygyra 52: 23 Helisoma 43: 139; 44: 34, 77; 46: 6, 30, 137; 47: 86, 89-90, 140; 48: 113-4; 49: 47; 50; 30-1; 54: 7, 17; 55: 69; 56: 131; 58: 12; 59: 27, 70 ammon 47: 140, 142; 50: 41-2; 58: 32 anceps 48: 17, 59; 50: 115; 54: 7; 56: 132; 57: 46; 58: 32, 69, 78; 59: 27, 29 anceps sayi 50: 115 antrosum 40: 85-7; 42: 56-7, 97; 44: 128, 130; 47: 9; 48: 110; 52: 130; 54: 7, 53, 144; 58: 12 antrosum cahni 40: 85-7 antrosum jordanense 42: 97 antrosum minnesotense 40: 86 antrosum percarinatum 44: 46; 57: 8 antrosum portangense 40: 85-6 antrosum shellense 40: 86 antrosum unicarinatum 40: 50-1 bicarinatum 42: 97 binneyi 47: 87-91, 140, 142 cahni, see antrosa c. californiense, see tenue c. campanulatum 40: 50; 41: 49, 51; 42: 57, 136; 48: 106, 109-10; 54: 7, 144; 57: 46; 58: 32; 59: 27, 29 campanulatum davisi 41: 50; 42: 133 campanulatum michiganense 41: 49-51 campanulatum minus 59: 27, 29 campanulatum rudentis 40: 51 campanulatum smithii 57: 8 campanulatum wisconsinense 42: 57, 133 chapalense, see tenue c. chautauquense, see trivolvis c. clewistonense 54: 17, pi. 1 conanti 58: 32 corpulentum 42: 95, 131-2, 134; 46: 6-8; 58: 32 corpulentum multicostatum 46: 7-9 corpulentum vermilionense 42: 131-2 davisi, see campanulatum d. depressum, see occidentale d. duryi eudiscus 58: 32 duryi seminole 58: 32 eudiscus, see duryi e. hemphilli 47: 141 infracarinatum 46: 8; 50: 114, 116; 58: 32 jordanense, see antrosum j = kettlemenense 48: 17 kolymense, see trivolvis k. lentum 53: 78 -- see also trivolvis 1. macrostomum, see trivolvis m. michiganense, see campanulatum m. minnesotense, see antrosum m. minus, see campanulatum m. multicostatum, see corpulentum m. percarinatum, see antrosum i^. portagense, see antrosum p. pseudotrivolvis 40: 50 (Carinifex) newberryi 44: 77 occidentale 47: 86-7. 90-1, 140-1; 58: 32 184 THE NAUTILUS Helix occidentale depressum 47: 140-1 pilsbryi 46: 8-9 rudentis, see campanulatum r. sayi, see anceps s. (Pierosonia) scalare 44: 34; 58: 32 senilnole, see duryi s. shellense, see antrosum s. smithii 58: 32 -- see also campanulatum s. subcrenatum 50: 14, 115 tenue 47: 86, 140-2 tenue californiense 47: 140 tenue chapalense 54: 17; 59: 121 traskii 47: 88-91; 58: 32 trivolvis 42: 57-8, 131, 136; 43: 42, 119; 44: 46, 88; 45: 118; 46: 6, 137; 47: 86, 88, 141; 48: 59; 52: 15, 130; 53: 78; 54: 7-8, 144; 56: 54; 57: 45-6; 58: 12, 78; 59: 110 trivolvis chautauquense 42: 57 trivolvis kolymense 46: 137 trivolvis lentuni 47: 16; 48: 114 trivolvis macrostomuni 50: 115 trivolvis winslowi 42: 58 truncatum 42: 132; 48: 109-10 unicarinatum, see antrosum u. vermilionense, see corpulentum v. whiteavesi 46: 7 winslowi, see trivolvis w. wisconsinense, see campanulatum w. Helix 36: 31; 39: 28, 135; 40: 133; 41: 103, 128; 50: 17, 136; 55: 100-1; 57: 9, 53, 65, 120, 132; 60: 59 achatina 37: 45 aculeata 40: 31 acuta 59: 118 acutangula 36: 32 acutissima 44: 138 aeruginosa 50: 99 albida, see hortensis a. albida decolorata 35: 100 albina, see multilineata a. (Papuina) albocarinata 49: 91 albolabris 51: 48 alternata 50: 133; 55: 22 alternata australis 55: 22 (Patula) alternata costigera 55: 22 alternata laevigatus 55: 22 ampullacea 37: 46 anachoreta 46: 11-2 apex 49: 25 appressa 51: 93 arrosa 36: 13; 46: 11-4 aspera 44: 139-40 aspersa 37: 5; 40: 108, 134; 41: 139-40; 44: 30, 71, 102; 49: 113-4; 50: 133, 135; 52: 97, 138; 55: 99-101; 59: 144 asteriscus 39: 135 auricularia 37: 46 auriculata 49: 103 australis, see alternata a. axia 50: 72 ayersiana 46: 11-2 badia 51: 26-7 badia guadeloupensis 51: 27 (Dentellaria) badia roseolabrum 51: 27 (Dentellaria) badia unicolor 51: 27-8 belcheri 45: 30 besckei 41: 126 bidentata 40: 68 bilamellata 47: 61 binominata 37: 135 (Papuina) blainvillei 57: 66 bryophila 35: 49 bursatella 46: 70 calathus 60: 95 calcarea 35: 39, 100 californiensis 36: 13; 51: 36 cana 37: 46 candidissima 36: 32 capillata 38: 82 capri, see oculus c. capirmulgi, see oculus c. carpinensis, see pisana c. cara media 49: 24 carinata, see perspectiva c. carocolla 37: 46; 59: 117 carocolla dentata 37: 46 carocolla Linnaei 59: 117 carolinensis 51: 93 cassiquieflsis 39: 34 castanea, see hortensis pallida c. and nemoralis c. cepoides 46: 72; 59: 121 cereolus 38: 85 chersinella 43: 96, 124 chilhoweensis 40: 132 citrina 50: 30 clausa 51: 49 cognata 44: 140 commutanda 37: 135 concava 41: 124 concolor 44: 100 -- see also haemastoma c. concursus, see dupetithouarsi c, conoidea 59: 118 conula 50: 70 Conus 49: 67 cooperi 49: 69; 50: 99 coppingeri 35: 49 cornu damae 37: 47 corrugata 35: 102; 52: 78 corticaria 35: 49 costigera, see alternata c. crassilabris 52: 40 cyclaminum 37: 47 cyclostoma 35: 12 damae, see cornu d, decollata 59: 117 decolorata, see albida d. dentata, see carocolla d. depressiformis 36: 17 depressior, see maackii d. diaphana 53: 107 distorta 41: 127 dolabratus 37: 47 donatii, see pisana d. 185 Helix INDEX TO duclosiana 56: 36 dupetithouarsi 36: 12; 46: 11-2; 50: 99 dupetithouarsi concursus 38: 55 effusa 45: 72; 59: 121 elatior, see maackii e. elevata 51: 49 ericetorum 59: 119 excrescens 42: 67, 141 exigua 35: 49 fallax 48: 49-50 fasciata 37: 48; 42: 141 fidelis 36: 13; 50: 99 fidelis minor 36: 13 fruticum 41: 43 fuscolabiata 52: 78 gaertneriana 57: 65 galactites 59: 120 (Cochlodina) gargantua 60: 58-9, 106 gartneriana 57: 65 gigantea, see portosanctana g. gilva 52: 78 (Helicogena) gilvus 52: 77-8 guadeloupensis, see badia g. gualtierana 44: 138 gularis 59: 119 harfordiana 37: 133-4 haemastoma concolor 44: 100 heligmoidea 52: 23 hepatica 42: 141 hippocastaneum 49: 103 hopetonensis 48: 52 hortensis 36: 67, 108; 38: 2-4; 40: 94, 112; 42: 42, 102; 43: 133; 44: 71; 50: 134; 51: 138; 54: 74; 56: 106 hortensis albida 38: 2 hortensis lutea unicolor 38: 2 hortensis pallida castanea 38: 2 hortenus 54: 74 (sic, err. pro hortensis) hypophloea 35: 49 incerta 44: 139 infecta 55: 22 (sic) infumata 50: 99 intercisa 50: 98 introferens 44: 128; 48: 50 inversicolor 50: 139 irrorata 51 : 93 jamaicensis 44: 138 jayana 44: 68 jecusculum 37: 49 labrosa 60: 59 labyrinthica 35: 91 lactea 50: 72; 51: 93, 132-4; 55: 31; 56: 104 lacticolor, see tingitana 1. laevigata 47: 144 -- see also alternata 1. lais 57: 18 lampadophora 37: 49 lampas 44: 138-9; 59: 117 lawi 40: 132 libellula, see nemoralis I. liberiae 44: 68 lima 44: 140 lineata 37: 49 linnaei, see carocolla 1. linguifera 38: 4-5 lituus 49: 67 lucorum 37: 49 lutea, see hortensis I. lychnuchus 44: 138; 50: 140 maackii 38: 63 maackii depressior 38: 63 maackii elatior 38: 63 macasi 57: 120 maderensis 35: 12 magellanicus 35: 49 marginata 57: 18 media 49: 24 -- see also cara m. metaformis 46: 71; 59: 120 millium 39: 135 milleri 52: 78 (Hyalina) minima 57: 132-3; 58: 31 minor, see fidelis m. minuscula 56: 56 minuta 58: 31 mitra 37: 49 monodon 54: 78 mormonum 36: 13 mossambicensis 50: 70 mozambicensis 50: 70 multifasciata 52: 78 multilineata 58: 63 multilineata albina 38: 33 muscicola 35: 49 nemoralis 36: 67, 108; 38: 141; 39: 73-4; 40: 93-4; 41: 47; 42: 42; 43: 144; 44: 13, 71; 45: 27; 47: 96; 48: 31, 142; 49: 100; 50: 15; 51: 69, 138; 52: 96-7, 108; 55: 31 nemoralis castanea 44: 14 nemoralis libellula 40: 93; 41: 47; 44: 14 nemoralis rubella 40: 93-4; 41: 48; 44: 14; 50: 15 newberryana 50: 99, 139 nickliniana 46: 11-2; 50: 98-9 nodulus 37: 49 nucleata 40: 30 nutris 50: 134 nuttalliana 36: 13-4; 50: 99 obvoluta 59: 119 octona 44: 140 oculus capri 37: 50 oculus caprimulgi 37: 50 odontostoma 60: 106 oliva 37: 50 oregonensis 36: 12-3; 46: 11; 50: 99 OS roseum 37: 50 OS rubrum 37: 50 ovoidea 59: 120 pagodiformis 47: 61 palliata 51: 93 pallida 52: 78 -- see also hortensis p. (Cochlodina) pantagruelina 60: 58, 106 parallela 56: 88 patula 38: 86 pellucida 42: 136-8 186 THE NAUTILUS Helminthoglypta perspectiva 38: 85 (Patula) perspectiva carinata 55: 21 physalis 57: 18 pileus 49: 67 pisana 35: 39, 98, 100; 41: 32; 46: 139-40 pisana carpiensis 36: 45 pisana donatii 36: 45 (Papuina) poiretiana 57: 66 polita, see tridentata p. polymorpha 35: 12 poniatia 36: 32; 40: 31; 44: 71; 48: 38, 42; 50: 131, 134; 51: 61-3, 69; 52: 96; 54: 145 portosanctana 35: 102 portosanctana gigantea 35: 102 priamus 37: 50 profunda 51: 49; 54: 109 prostrata 36: 17 putris 36: 31 (Triodopsis) roperi 44: 17 roseolabrum, see badia r. roseum, see os r, rostrata 37: 51 rubella, see nemoralis r. rubrum, see os r. ruderata 45: 85 rufescens 51 : 137 rufogaster 59: 120 salmonensis 37: 134-5 sancta georgiensis 38: 4-5 saxatilis 41: 125 schrenckii 41: 43 semilimax 42: 138 septemvolva 49: 102; 52: 23-4 sibirica 41: 43 Simla 35: 103 simulans 49: 25 sinuata 44: 138 slessica, see tingitana s. solaria 38: 85 spiriplana 37: 72 spirorbis 35: 13 splendida 35: 103 streptodon 41: 127 striolata 44: 139 stuartiae 50: 30 subaquila 54: 60 subcavernula 46: 70-1 subplicata 35: 98 sultana 59: 30 tayloriana 49: 89 tentaculata 54: 66 testa-ovi 42: 141 (Pyramidula?) thurstoni 44: 33 thyroides 50: 98 thyroidus 51: 48 (Alabastrina) tingitana 56: 104 tingitana lacticolor 56: 104 tingitana slessica 56: 104 traskii 36: 13 tridentata 48: 22 tridentata polita 45: 136 trochiforniis 40: 68 tryoni 50: 136 tudiculata 36: 13; 46: 11-2 tudiculata tularensis 52: 7-8 tukanensis 57: 17 tularensis, see tudiculata t. turbiniforniis 50: 139 umbilicata 37: 51 unicolor, see badia u. and hortensis lutea u, unidentata 46: 72; 59: 121 Ursula 45: 142 ustulata 35: 40, 100 van nostrandi 48T 51 veatchii 48: 6 velutina 54: 59 (Otala) vermiculata 41: 139 vincta 51: 36 virgata 36: 45; 59: 120 viridis 46: 71 vivipara 56: 124 vivisicata 37: 52 whitneyi 44: 98 zonaria 37: 52 HelminthoglyjDta 43: 73; 44: 42, 125; 45: 49-50, 134; 46: 4, 11, 82-3; 50: 68-9, 123; 51: 11, 60, 119; 53: 142; 54: 33, 124-5; 56: 83-4; 59: 103 allyniana 54: 125 allyniana kernensis 59: 36 anachoreta, see nickliniana a. arida, see graniticola a. arrosa 51: 79-80, 82, 84, 121 arrosa expansilabris 46: 14; 51: 84-5 arrosa holderiana 55: 98-9, 101 arrosa mailliardi 40: 125; 46: 11, 13-4 arrosa mattolensis 51: 83-4, pi. 8 arrosa miwoka 51: 81 arrosa pomoensis 51: 81-2, pi. 8 arrosa rubicunda 51: 82, 84 arrosa stiversiana 51: 80 arrosa williamsi 51: 79-80, pi. 8 avus, see cuyamacensis a. ayresiana 40: 78-9; 51: 71-2; 52: 24-5 ayresiana lesteri 52: 24 ayresiana sanctaecrucis 40: 78 benitoensis 44: 43, pi. 5; 54: 125 berryi 54: 125 caelata, see traski c. californiensis 51: 36; 54: 125; 55: 65 callistoderma 41: 82 carpenteri 51: 10-6, pi. 1 -- see also traski c. caruthersi 59: 103 cayucosensis, see umbilicata c. contracostae 40: 124-5; 54: 125 crotalina 44: 125 cuvama 51: 15, pi. 1; 54: 125 cuyamacensis 43: 114; 45: 29; 50: 67, 69; 51: 13; 53: 143; 54: 33 cuyamacensis avus 50: 67-8 cuyamacensis lowei 50: 69; 54: 33 cuyamacensis piutensis 59: 104 187 Helminthoglypta INDEX TO cuyamacensis venturensis 45: 29, 50-1; 50: 68; 54: 125 cypreophila 46: 83, 86, pi. 6; 51: 17; 52: 8 -- see also tudiculata c. diabloensis 55: 98-9, 101 dupetithouarsi 38: 55; 44: 43; 54: 122, 124-5 exarata 51: 82; 54: 125 expansilabFis, see arrosa e. ferrissi 38: 54; 51: 16; 54: 125 fieldi, see traski f. fontiphila 45: 49, pi. 4; 50: 68; 54: 125 graniticola 40: 140; 43: 73; 44: 125; 45: 21 graniticola arida 44: pi. 7; 45: 20 greggi 44: 124-5, pi. 7 hertleini 51: 16, pi. 1 holderiana, see arrosa h. isidroensis, see traski i. jaegeri 43: 73; 45: 21 kermensis, see tudiculata k. kernensis, see allyniana k. and tudiculata k. lesteri, see ayresiana 1. lowei 43: 114 -- see also cuyamacensis mailliardi, see arrosa m. mattolensis, see arrosa m. misiona, see traski m. miwoka, see arrosa m. mohaveana 40: 140; 43: 73-4; 44: 125; 45: 21, 50 nickliniana 54: 125; 57: 71 nickliniana anachoreta 40: 124-5 nickliniana ramentosa 54: 141 orotes, see petricola o. pacoimensis, see traski p. petricola 54: 125 petricola orotes 54: 125 petricola sangabrielis 50: 69 phlyctaena, see traski p. piutensis, see cuyamacensis p. pomoensis, see arrosa p. proles, see traski p. ramentosa, see nickliniana r. reediana 45: 134-5, pi. 11 rex, see tudiculata r. riparia 43: 74; 45: 21 rubicunda, see arrosa r. sanctaecrucis, see ayresiana s. sangabrielis, see petricola s. sequoia 41: 78, 81, 42, pi. 1 -- see also tularensis s. sequoicola 41: 82; 51: 35; 54: 125 similans 51: 13-4, pi. 1 sonoma 51: 35 stiversiana, see arrosa s. tejonis, see traski t. traski 38: 55; 40: 140; 41: 32-4; 44: 43, 66, 86; 45: 29, 49; 51: 10, 13, 60 traski caelata 51: 61 traski carpenteri 45: 135 traski fieldi 44: 66, pi. 5 traski isidroensis 45: 49; 51: 61 traski misiona 51: 60, pi. 4 traski pacoimensis 45: 48, pi. 4 traski phlyctaena 41: 77; 44: 66-7; 51: 15, 61 traski proles 41: 78 traski tejonis 54: 125 tudiculata 43: 40; 51: 120-1; 56: 70-1 tudiculata cypreophila 40: 125 tudiculata kermensis 43: 40, 138; 51: 121 tudiculata kernensis 51: 121-2 tudiculata rex 51: 119, 121-2, pi. 8 tudiculata tularensis 41: 78, 81; 51: 122 tularensis 51: 17 -- see also tudiculata t. tularensis sequoia 54: 125 umbilicata 38: 55, 105; 44: 30; 54: 122, 124-5; 55: 107 umbilicata cayucosensis 38: 104; 41: 78 venturensis, see cuyamacensis v. walkeriana 44: 30; 54: 124-5 willetti 51: 16 williamsi, see arrosa w. helvola, Cypraea 35: 50; 36: 121; 50: 79; 51: 2; 52: 6, 10, 104; 55: 2; 57: 83-5; 58: 1 131, 142 hembeli, Margaritana 36: 42 Hemicardium fragum 60: 57 unedo 60: 57 Hemicycia 44: 139 plicaria 49: 103 Hemifusus 60: 18 corona minor 47: 119 morio 60: 19 Hemiglypta 46: 105 iloilana 45: 102, pi. 7 Hemilastina ambigua 36: 98 (sic , err. pro Hemilastena) Hemimactra 38: 102 -- subgenus of Spissula Hemimitra 54: 65; 57: 19 tangi 57: 19, pi. 6 terminalis 57: 20 hemioxia, Ampelita 56: 48-9 Hemisinus 50: 18; 54: 67 lineolatus 46: 93; 51: 40; 54: 67 Hemitrochus 56: 82-3 -- subgenus of Cepolis Hemphillia 50: 139 glandulosa 39: 143; 50: 139 langinosus 58: 101 malonei 39: 143 hemphilli, Cercinaria 45: 86 hemphilli, Goniobasis 48: 96-7, 134 hemphilli dallesensis, Goniobasis 48: 97. 134 hemphilli maupinensis, Goniobasis 48: 97 hemi^hilli, Haplotrema 45: 86 hemphilli, Helisoma 47: 141 hemphilli. Hesperarion 57: 109, 114 hemphilli, Macrocyclis 43: 95-6, 99-100; 45: 86-7 hemphilli, Mactra 38: 99 hemphilli, Megomphix 43: 96, pi. 5; 48: 47 THE NAUTILUS Hiloensis hemphilli, Patula 57: 144 hemphilli oquirrhensis, Patula 57: 144 hemphilli utahensis, Patula 57: 144 hemphilli, Sayella 48: 130; 53: 44 hemphilli, Spisula (Hemimactra) 38: 101 hemphilli, Stagnicola 47: 124; 48: 19 hemphilli, Strombiformis 52: 34 hemphilli, Triodopsis 37: 135 hemphillii. Eulima (Leiostraca) 52:34 hemphilliana, Galba, see G. reflexa h. hemphilliana, Lymnaea 37: 23-4 henckeliusi, Corbula 40: 44 hendersoni, Amnicola 47: 10, 12 hendersoni, Ancylus 40: 56; 44: 31 hendersoni. Bulimulus 44: 100 hendersoni. Calliostoma 40: 140; 56: 15 hendersoni, Gyraulus, see G. vermicu- laris h. hendersoni, Gyrotoma 38: 67; 58: 47 hendersoni, Lymniea 45: 140 hendersoni, Pisidium 37: 20 hendersoni. Polygyra, see P. mullani h. hendersoni. Puncturella 40: 141 hendersoni. Somatogyrus 58: 10 hendersoni, Sphaerium 57: 95 Hendersonia 39: 142; 40: 35; 43: 41, 45; 44: 34 occulta 39: 40; 43: 111; 44: 87; 53: 123 occulta rubella 39: 142; 43: 42-5; 44: 21 orbiculata 44: 34 henekeni, Mitra 51: 90-1 henriettae, Melania 57: 21 henriettae, Wanga 57: pi. 6 henslowanum, Pisidium 36: 40; 40: 26; 42: 23, 26 hepatica, Heli.x 42: 141 Hepatica, Nerita, see N. Syncera Ho hepatica, Syncera 54: 119 hepaticus, Liguus, see L- fasciatus h. hepburni. Cadulus 38: 25; 51: 101 heptagonum. Caecum 60: 104 herberti, Polygyra 43: 106; 51: 17. pi. 3 Hercoglossa 44: 141 Here 52: 88 -- subgenus of Lucina hericeus, Chlamys 38: 24 hericius, Pecten 43: 50 heripensis, Helicella 44: 55, 66 herklotsi, Euhadra 41: 65 Hermissenda 35: 75 crassicornis 35: 74, 76 opalescens 35: 75-6; 36: 91, 134 Hermodice carunculata 49: 60 hermosa, Pyramidella (Triptychus) 55: 122 heroldi. Acmaea 49: 2 heroldi pygmaea, Acmaea 49: 2 heros, Megalonaias 36: 75 heros. Natica 35: 87; 41: 10, 15 heros, Polinices 35: 30, 32; 38: 50; 39- 29 38-9, 132; 56: 58. 143; 57: 69; 58: 20, ' 137-40 heros, Polynices 49: 133; 59: 97 heros, Quadrula (Crenodonta) 36: 25, 48 54; 45: 57; 47: 30 189 herrmanni. Radiodiscus 35: 49 hertleini, Helminthoglypta 51: 16, pi. 1 herzi, Caspicyclotus 50: 9 hesitata, Cypraea, see C. alba h. hesitata, Umbilia 40: 18 Hesperarion hemphilli 57: 109, 114 niger 59: 36 hesperium, Deroceras 58: 16 hesperius, Bulimulus, see B. alternatus h. heteroclites, Pleurodonte 49: 55 heteroclytes, Batillaria 56: 28 heteroclytes, Cerithium 56: 23, 28 heterodon. Alasmidonta 54: 52 Heterodonax bimaculatus 36: 34; 49: 119 heterodonta, Ashmunella, see A. levettei h. Heterogen 56: 124 heteroglyptus, Pecten 50: 91 Heterosiphonaria 59: 108 heterostropha. Physa 37: 30; 40: 55, 61; 41: 85; 42: 59, 129; 43: 34, 70, 88; 44: 69; 46: 101; 47: 1, 9; 48: 59; 52: 130; 54: 53; 57: 46; 58: 13 heterostropha osculans, Physa 48: 33 heterostropha, Physella 54: 144 heterosculpta, Urocoptis 45: 88, 98 Heterozona 39: 36 cariosa 58: 101 heterura, Deroceras 58: 15-6 Heudeana 36: 43 heudei, Bellamya, see B, quadrata h. heudei, Hua 57: 21 heudei, Paludina 56: 124; 59: 66 heudei, Viviparus, see V. quadratus h. hexagona, Muricidea 38: 61 hexagonum, Caecum 60: 104 hexagonus oxytata, Murex 51: 89 hians, Lima 49: 117 hians, Sunetta 36: 108 Hiata 49: 110-1 infelix 49: 111, pi. 8 hiatula, Agaronia 60: 81 hiatula, Olivancillaria 52: 45 hibbardi. Vertigo 51: 126-7 hiemalis, Diaphana 40: 22 hieroglyphica, Cytherea 40: 81 hieroglyphica, Lioconcha 55: 2 higginsii, Lampsilis 36: 101 higginsii grandis, Lampsilis 36: 102 hildrethiana, Melania 41: 60 hildrethiana, Physa 40: 51 -- see also P. gyrina h. hildrethiana, Physella, see P. gyrina h. hillebrandi, Epiphragmophora, see E. mormonum h. hillebrandi, Monadenia 48: 70; 53: 141 hilli. Cardita 59: 104 hilli. Micrarionta, see M, hutsoni h. hilliana, Blandia 48: 14 hilliana, Geomelania 48: 87 hillianum, Choanopoma 48: 64 hillianum aculeosum, Choanopoma 48: 64 hillianum leporilabre, Choanopoma 48: 64 hiloensis, Odostomia 58: 65, pi. 6 Hindsi INDEX TO hindsi, Fluminicola 53: 125 hindsii, Coralliophila 42: 99 hindsii, Epitonium 45: 31 hindsii, Mopalia 46: 124 hindsii, Scala 45: 70; 55: 46 hindsii, Scalaria 45: 31, 71 hinkleyi, Elliptio 41: 53 hinkleyi, Somatogyrus 58: 7-9 hinkleyi, Unio 47: 18 hinkleyi. Vertigo 59: 121 Hinkleyia -- subgenus of Stagnicola Hinnites giganteus 37: 41; 40: 81; 43: 50; 47: 36; 49: 29 hippocastaneum, Helix 49: 103 hippocastaneum, Lucernella 44: 138 hippocastaneum, Thais 46: 112; 60: 55 hippocastaneus, Murex 52: 45 Hipponix antiquatus 37: 43; 44: 93; 50: 48 cranioides 53: 22 grayanus 46: 45; 52: 45 tumens 37: 43 Hipponyx 52: 43 pilosus 52: 45 serratus 50: 48, 50 Hippopus hippopus 60: 57 hippopus, Hippopus 60: 57 Hirasea 39: 68 nesiotica 45: 30 nesiotica liobasis 45: 30 hirasei, Bulinus 40: 121-2; 44: 80 hirasei, Camptoceras 44: 80 hirasei, Culmenella 44: 80 hirasei, Pecten 50: 27 hirasei, Strobilops 41: 102 hirsuta, Alcadia 48: 12 hirsuta, Monadenia 51: 141 -- see also M. mormonum h. hirsuta, Polygyra 39: 80; 40: 47-8, 115; 43: 43, 67, 118-9; 44: 17, 38, 87, 129; 49: 100; 50: 120; 51: 56, 58-9; 52: 96; 53: 46, 86 hirsuta altispira, Polygyra 35: 42 hirsuta yarmouthensis, Polygyra 40: 115-6 hirsutum, Stenotrema 52: 55; 54: 145; 55: 14; 57: 135; 58: 25-6, 127-8 hirsutus, Gyraulus 48: 110; 59: 27, 29 hirsutus, Planorbis 38: 11; 40: 55, 61; 41: 85, 92; 42: 17, 58 hirta, Alectrion 36: 121; 55: 2 hirta, Nassa 59: 107 hirundo, Cypraea 40: 126-7; 52: 104; 58: 144 hispida, Alcadia 40: 88 hispida, Hygromia (Fruticicola) 44: 71; 50: 134 hispidus, Acanthochiton 58: 102 hispidus hirtus, Acanthochiton 58: 102 Histrio 56: 82 histrio, Rhachistia (Eorrhachis) 51: 35 histrix, Murex 37: 48 Hjalmarsona 54: 70 hjalmarsoni, Alcadia (Idesa) 54: 70 hjalmarsoni, Farcimen 56: 106 hjalmarsoni, Megalomastoma 56: 107 Hodopoeus 58: 116-7 crassus 58: 117, pi. 6 hoffmani, Drepanotrema 54: 96, pi. 8 Hoffmannola 51: 87-8 Hojeda 48: 135; 50: 70; 54: 55, 61 inaguensis 50: 70; 54: 60, pi. 5 vanattai 50: 70; 54: 60-1 holbollii, Astyris 39: 134 holderiana, Helminthoglypta, see H. arrosa h. holguinense, Opisthosiphon , see O, aguilerianum h. Holkeion anceps 44: 68 hollandi, Alcadia 48: 12 hollandi, Hyalosagda 49: 53 hollandi, Spiraxis, see S. anomalus h. hollandi, Urocoptis 49: 58 hollandiana, Fadyenia 48: 14 holmbergi, Odontostomus (Spixia) 54: 92, 95 holmesii. Area 60: 71 holograpta, Sigatica, see S. semisul- cata h. Holospira 38: 38; 40: 4; 41: 87, 94; 53: 27 anacachensis, see goldfussi a. cockerelli 41: 94 crossei 36: 119 danielsi 40: 4 goldfussi anacachensis 38: 39, 41 (Haplocion) kinonis 53: 94, pi. 12 mesolia 47: 17 roemeri 38: 42; 47: 16-7, 79 holstonia, Alasmidonta 36: 83 holstonia, Lasmigona (Alasminota) 36: 83, 129-30 holzingeri, Gastrocopta 42: 14; 45: 116; 50: 98; 58: 69 holzingeri agna, Gastrocopta 50: 98; 60: 24 holzneri, Haliotis, see H. cracherodii h. Homalopoma bacula 50: 49 carpenteri 50: 49; 53: 22 hommonis, Polita 35: 36; 41: 34 hongkongiensis, Hua 57: 21 hopetonensis, Ampullaria 50: 39 hopetonensis, Elliptio 49: 80 hopetonensis, Helix 48: 52 hopetonensis, Polygyra 42: 20; 48: 22, 52-3, pi. 1; 52: 29-30, 97 hopetonensis charlestonensis, Polygyra 48: 22, 53, pi. 1 hopetonensis obsoleta, Polygyra 48: 22, 53, pi. 1 hopetonensis, Triodopsis 48: 52; 53: 97; 54: 69; 58: 63 hopetonensis obsoleta, Triodopsis 58: 63 hoppii. Vertigo 38: 93; 40: 112; 53: 127, 129 Horatia 40: 68; 54: 35 190 THE NAUTILUS Hyalosagda hordeacella, Gastrocopta 40: 16; 42: 66 -- see also G. pellucida h. hordaceus, Pupoides 36: 65; 44: 142; 55: 144 hormica, Thais, see T. lamellosa h. Hornioniya 56: 31 -- subgenus of Brachidontes hornii, Planorbis, see P. trivolvis h. hornii, Thysanophora 38: 40; 41: 144; 42: 66; 47: 16-7; 48: 116 hornii, Tritonium 40: 144 hornensis, Gyraulus 50: 114, 116 horrida, Drupa 60: 55 horrida, Ricinula 35: 84 horrida. Varicella, see V. acuticostata h. horridus, Strombus, see G. gigas h, hortensis, Arion 35: 78; 36: 105; 38: 72; 40: 113; 41: 32; 50: 134 hortensis, Cepaea 50: 134; 53: 142; 57: 67; 60: 4, 102 hortensis. Helix 36: 67, 108; 38: 2-4; 40: 94, 112; 42: 42, 102; 43: 133; 44: 71; 50: 134; 51: 138; 54: 74; 56: 106 hortensis albida. Helix 38: 2 hortensis lutea unicolor, Helix 38: 2 hortensis pallida castanea. Helix 38: 2 hortenus. Helix 54: 74 hotesseriana, Tegulus (Omphalius) 46: 120 hotesserianus, Trochus 46: 120 houghi, Oreohelix 43: 144; 49: 69 houghi winslowensis, Oreohelix 43: 144 houstonensis, Quadrula 56: 144 Hoyia 40: 140 hsiii, Wanga 57: 21 Hua 57: 21 diminuta 57: 21 friniana 57: 21 heudei 57: 21 hongkongiensis 57: 21 intermedia, see praenotata i., joretiana 57: 21 kweichowensis 57: 21 leprosa 57: 21 nura, see protea n. oreadarum 57: 21 praenotata 57: 21 praenotata intermedia 57: 21 protea nura 57: 21 schmackeri 57: 21 telonaria 57: pi. 6 toucheana 57: 21 vultuosa 57: 21 huachucanum, Pisidium 37: 22; 42: 94 huapensis, Diplodon 45: 18 huarazensis, Bostryx 57: 121 hubbardi, Strobilops 35: 91; 37: 66,68; 38: 7; 41: 102; 42: 21 hubrichti, Stenotrema 56: 73-4 hudsoni, Acanthodoris 39: 50-2, 54, 60, 101, pi. 2 huesonica, Liotia 40: 140 hughi, Lima 37: 69-70 humboldti, Rhinocoryne 56: 29-30 humboldti lamarckii, Rhinocoryne 56: 30 Humboldtiana 44: 10, 11, 13; 48: 91; 53: 140; 56: 37-9, 82 cheatumi 48: 93, 115 chisosensis 41: 42; 44: 13 ferrissiana 41: 82-3; 44: 12-3; 48: 94 fortis 53: 140; 54: 47-9 montezuma 53: 140 palmeri 44: 12-3, pi. 2; 48: 94 texana 41: 82; 44: 13 ultima 44: 13 humboldtiana, Lysinoe 40: 65 humboldtiana, Urocoptis 40: 90 humboldtii, Cerithium 56: 26, 29 humeralis, Valvata 59: 21-2 humeralis californica, Valvata 41: 119; 42: 120-1; 44: 109; 47: 3, 29; 48: 16, 48; 52: 35; 53: 137; 55: 131; 56: 55 humeralis densestriata, Valvata 55: 131 humerosa, Paludina 47: 151 humerosa, Physa 42: 120; 50: 42 humerosa interioris, Physa 45: 139, pi. 11 humida, Hypsobia 55: 18 humilis, Lymnaea 39: 80;58: 11 humilis modicella, Lymnaea 40: 8, 60, 66; 54: 6; 56: 133; 58: 11 humphreyanum, Choanopoma 48: 65 humphreysianum, Buccinum 39: 134 humphreysii, Epitonium 36: 60; 54: 127; 56: 141; 57: 31; 58: 60 hunanensis, Mekongia 56: 129 hungerfordianus, Lagochilus 55: 43 hutsoni, Micrarionta 44: 4-6; 48: 67; 59: 103 hutsoni amboiana, Micrarionta 44: 123, pi. 7; 48: 68 hutsoni desertorum, Micrarionta 44: 5, 123 hutsoni hilli, Micrarionta 44: 6, 123 hutsoni unifasciata, Micrarionta 44: 6-7, 123-4 Huttonia 52: 87 Hyalina 42: 137; 44: 55, 66, 104 -- also as subgenus of Marginella californica 36: 34 ferrea 44: 128 rathouisii 56: 40 subrupicola 43: 96, 122, 143 hyalina, Lyonsia 36: 60; 38: 49; 56: 61, 143; 58: 57 hyalina, Partula 39: 20 Hyalocylis striata 47: 55 Hyalosagda 48: 135; 50: 70; 54: 61 ambigua, see similis a. angustispira 48: pi. 8; 49: 52 (Stauroglypta) anthoniana 48: 136; 49: 52 (Stauroglypta) anthoniana invasa 49: 52 arboreoides 49: 53 boothiana 49: 52 brevior, see perdepressa b. diminuta 48: 136 -- see also sincera d. (Microsagda) epistyliulum 48: 136; 49: 52; 54: 60 191 Hyalosagda INDEX TO (Strialuna) haplotrema 48: 137, pi. 8; 49: 52 hollandi 49: 53 (Lacteoluna) immunda 49: 52 inconspicua 48: 137; 49: 52 invasa, see anthoniana i. (Vilitas) omissa 48: 135; 49: 52 osculans 48: 135; 49: 53 peraffinis 49: 52 perdepressa 49: 52 perdepressa brevior 49: 52 ptychodes 49: 52 rufula 49: 52 similis 48: 136; 49: 53 similis ambigua 49: 53 simplex 48: 135; 49: 53 sincera 48: 137; 49: 52 sincera diminuta 49: 52 spreta 48: pi. 8, 49: 52-3 (Microsagda) subaquila 54: 60, pi. 5 (Aerotrochus) subpyramidalis 48: 135; 49: 52 Hyalotheuthis pelagicus 54: 71 hybrida, Haplotrema, see H, vancouveren- sis h. hybrida, Helicostyla, see H. decorata h. hybrida, Oreohelix, see O. haydeni h. Hydatina 50: 29-30 amplustre 58: 122-3 physis 50: 29; 52: 33, 72 hydei, Goniobasis 41: 58 Hydrobia 47: 12; 48: 91; 58: 113 carinata, see ventrosa c. greggi 48: 93 jenkinsi 52: 137; 60: 103-4 pontis 36: 141 protea 50: 42 salsa 56: 141 seemani 48: 91; 59: 18-9 steinii 60: 86-7 torrei 46: 120, pi. 6 ventrosa 60: 103 ventrosa carinata 60: 103-4 Hydrobioides physcus 41: 108 Hydrocena chinensis 54: 119 Hydrolimax 35: 80 -- subgenus of Limax Hygromia 36: 67; 41: 42 alba, see striolata a. albocincta, see striolata a. fusca 36: 67 (Fruticicola) hispida 44: 71; 50: 134 incarnata 44: 71 limbata 36: 67 sibiric a 41: 42 striolata 51: 137-8, 140; 54: 74 striolata alba 51: 140 striolata albocincta 51: 140 striolata rubens 51: 140 umbrosa 50: 134 hymerense, Cerithium 56: 23 hyperboreum, Deroceras 55: 30 hyperboreus, Limax 53: 130 hypergonia, Aclis 56: 17, pi. 3 hyperolia, Polygyra, see P. texasiana h. hyphalus, Fusinus 54: 43 hvpnorum, Aplexa 36: 25; 37: 30; 40: 51; 42: 17, 19, 134; 43: 84; 47: 2-3; 48: 100; 52: 125; 53: 134-5; 59: 29 hypnorum glabra, Aplexa 48: 60 hypnorum pilsbryi, Aplexa 48: 100; 50: 14 hypnorum, Physa 52: 59 Hypocassis 41: 72 hypocurta, Turbonilla 39: 144 hypodra, Columbella (Alia) 37: 42 hypolepta, Thysanophora 37: 33; 38: 7 hypolispus, Chrysodomus (Sipho) 37: 35 hypolispus, Colus (Latisipho) 37: 35 hypophloea, Helix 35: 49 Hypoptychus 46: 72 hyporhyssa, Cerithidia, see C. californica h. and C. sacrata h. hypsela, Eulima 46: 117 hypsela, Mdanella 46: 117 Hypselostoma 36: 63-4 Hypselostyla 46: 72 Hypselostylus 46: 71 Hypsobia 48: 102; 58: 135 humida 55: 18 tangi 55: 16-7 Hyria 39: 5; 40: 106 avicularis 49: 83 corrugata 39: 2 Hyriopsis 49: 83 hystrix, Murex 37: 48 ianeirensis, Bulimus 60: 57 laniscus -- subgenus of Crepidula lanthina, see Janthina Iberus 44: 138; 59: 117 gualtieranus 59: 117 ibex, Rivularia 56: 129 Icarus 56: 81 ictericus, Spondylus 51: 38-9 ida, Pitaria 42: 4, pi. 1 idae, Mitra 50: 47 idae, Strigatella (Atrimitra) 37: 41 idae, Vaginula 39: 15 idahoensis, Pristiloma 43: 126; 45: 84, 86 idahoensis, Amnicola 47: 11-2 idahoensis, Lymnaea 44: 75-6 idahoensis baileyi, Oreohelix 49: 69 idaheonsis, Patula 57: 144 idahoensis wassatchensis, Patula 57: 144 idahoensis, Zacoleus 43: 126 Idesa 41: 22; 48: 12; 54: 70 -- subgenus of Alcadia idiochila, Marginella 56: 75-6, pi. 7 idiodon. Area 42: 66 Idiopoma 56: 127 Idioraphe 59: 2 Idiostemma -- subgenus of Urocoptis Idonearca 42: 113-4 idosia, Engina 36: 122 ignava, Helicina 44: 141 ignava tabalasensis, Helicina 44: 141 ignilabre, Adamsiella (Adamsiellops) 48: 63 ignomon, Strombus 37: 48 192 THE NAUTILUS Incrassata Ilaira 59: 9 evoluta 59: 9 Ilikala 45: 126 illinoisensis, Viviparus, see V, intertextus illota, Area 52: 44 illota, Area (Barbatia) 37: 127; 46: 110 illustre, Cyclostoma 37: 90 illustris, Annularia 37: 91; 40: 88 illustris, Troschelvindex 37: 91 iloilana, Helicostyla, see H. ticaonica i. iloilana, Hemiglypta 45: 102, pi. 7 Ilyanassa (Paranassa) floridana 49: 138-9; 51: 89 -- also as subgenus of Alectrion obsoleta 42: 35; 58: 137-8 porcina 49: 138 ima, Imaclava 58: 67 Imaclava 58: 67 ima 58: 67 pembertoni 58: 67 imbecille, Pisidium 37: 22 imbecillis, Anodonta 35: 19; 36: 97; 39: 91; 47: 147; 52: 100; 55: 108 Imbricaria punctata 60: 56 imbricata, Anodonta, see A. grandis 1. imbricata, Chania 47: 85 imbricata, Purpura 40: 101-2 imbricata, Thais 36: 69 -- see also T. lapillus i. imbricatum, Crucibulum 37: 125; 52: 45 imbricatus, Armiger 55: 131 imbricatus, Pecten (Chlamys) 49: 117; 55: 46; 56: 110; 58: 38 imbricatus mildredae, Pecten (Chlamys) 55: 46, 106, pi. 3 Imerina 39: 14, 17 Imerinia 39: 13, 17; 44: 131, 135-7 grandidieri 44: 137 Imerinus 39: 14, 17 imitator, Oxystyla, see O. maracaibensis i. immaculata, Achatina 44: 104 immaeulata, Micrarionta 59: 104 immaculata, Natica 35: 88 immaculata, Polinices 35: 32; 36: 61; 39: 132; 57: 31 immaculatus, Drymaeus 49: 56 immemorata, Euglandina 49: 97 immersa, Nassa (lone) 58: 100 immersum, Torrella 40: 90 immunda, Hyalosagda (Lacteoluna) 49: 52 immunis, Planorbis 37: 36 Impages 37: 61-2 impedita, Stagnicola 47: 124; 48: 20 imperator, Megaustenia 43: 52 imperator imperatrix, Megaustenia 43: 52 imperator, Polydontes 52: 39, 41, pi. 3 imperforata, Cepolis 52: pi. 2 imperforata, Cepolis (Plagioptycha) 49: 105 imperforata, Haliotis, see H, cracherodii i. imperforata, Leptinaria 36: 32 imperforata, Neverita, see N. reclusiana i. imperforata, Pleurodonte 49: 55 imperforata, Polinices, see P. recluziana i. imperialis, Conus 37: 48 implicans, Zonites 41 : 125 ■ mplicata, Anodonta 37:95; 40: 91 mpolitus, Viviparus, see V. contectoides i. mporcata, Placiphorella 58: 102 mpressa, Goniobasis 38: 67; 50: 107 ; 58: 46-7 mpressa, Gyrotoma 38: 67 mpressa, Lora 40: 21 mpressa, Odostomia 56: 143; 58: 60 mpressa granitina, Odostomia 43: 132 mpressa, Tegula 52: 46 mpressa normalis, Tornatellina 47: 60 mpressa terebraeformis, Varicella 55: 28 mpura, Anodonta 44: 107 mpura, Thysanophora 54: 57 naequalis, Astraea (Pachypoma) 50: 49 inaequalis, Fissuridea 37: 126 naequalis, Glycymeris 37: 127 naequalis, Lucapinella 52: 45 inaequalis, Lucidella 48: 13 naequalis, Plecorema 37: 3 inaequalis, Rhytida 50: 18 naequistriata, Clathrodrillia 58: 28 inaequivalvis, Mya 40: 43 inaequivalvis, Pecten 49: 29 inaequivalvis, Periploma 43: 35 inaguensis, Hojeda 50: 70; 54: 60, pi. 5 naguensis, Thysanophora 37: 69 nca, Aperostoma 56: 138 nca, Drymaeus 57: 61-2, pi. 7 nca, Poteria 56: 135, 137 ncana. Pupa 43: 101 incanum, Cerion 37: 65; 38: 56, 59-60 ncanum saccharimeta, Cerion 37: 69 ncarnata, Hygromia 44: 71 incarnata, Margarites, see M. groenlandi- ca i. incarum, Anodontites 38: 54 incarum, Megalobulimus (Microborus) 58: 29 ncarum, Psadara 57: 119 incerta. Helix 44: 139 ncertum, Teinostoma 59: 2, 7, pi. 1 incessa, Acmaea 50: 49; 53: 22 ncisa, Clathrodrillia (Moniliopsis) 50: 47 ncisa ophioderma, Clathrodrillia (Monili- opsis) 50: 47 ncisa, Perna 40: 81 incisula, Lora 40: 21 ncisum, Gyrotoma 58: 48 ncisus, Triforis 52: 118 nclinans, Goniobasis 42: 30, 67 nclusus, Amphithalamus 37: 43 incomparabilis, Terebra 53: 7 incongrua, Area 43: 35; 49: 133; 55: 142; 58: 56 ncongrua brasiliana. Area 60: 19 incongrua, Macoma 44: 92 nconspicua, Hyalosagda 48: 137; 49: 52 inconstans, Terebra 36: 123 ncrassata, Oliva 47: 47; 48: 4; 55: 66; 57: 5 193 Incrassatus RTOEX TO incrassatus, Elliptio 38: 105 Incrustata 41: 22 inculta, Acteocina 35: 45-7, 122; 42: 2; 57: 71 incultum, Cyclostoma 37: 90 incurva, Crepidula 37: 125 incurvata, Tonicia 58: 102 indenta, Turritella 50: 18 indentata, Glyphyalinia 41: 83; 42: 20, 66; 43: 58, 67, 118; 44: 17, 45, 88, 129; 45: 34; 58: 69 indentata, Polita 37: 66-7, 132; 39: 80; 40: 47 indentata umbilicata, Polita 38: 42; 40: 16 indentata, Polygyra 37: 66 indentata, Retinella (Glyphyalinia) 43: 123; 47: 79, 138; 48: 56, 58; 50: 121; 51: 57; 53: 47, 87; 54: 31; 57: 132; 58: 110; 59: 28 indentata paucilirata, Retinella 47: 16-7; 48: 115-6; 51: 56, 105-6; 55: 8, 97 indentata, Vitrea 35: 43; 37: 97; 40: 66; 42: 124; 43: 43, 55 indianense, Pisidium 38: 10; 42: 54 indianensis, Goniobasis 35: 2; 38: 132 indianorum, Dentaliuni 43: 109 indianorum, Epitonium (Nitidiscala) 50: 47; 55: 47 indianorum, Polygyra 40: 3; 45: 129 indica, Macrochlamys 57: 31 indica, Quoya 51: 87 indica, Tanyclamys 57: 31 indigna, Pleurodonte 49: 55 indigo, Nerita 37: 48 indioensis, Micrarionta 43: 39, 115-6; 50: 124-5; 59: 103 indioensis cathedralis, Micrarionta 43: 115-6 indioensis remota, Micrarionta 50: 124 indioensis wolcottiana, Micrarionta 43: 116 indioensis xerophila, Micrarionta 43: 115- 6; 50: 124-5 indisputabilis, Alectrion 44: 93 indistincta, Cepolis (Plagioptycha) 56: 86, pi. 9 indivisum, Choanopoma, see C. uncinatum i. indivisum, Opisthosiphon, see O. uncina- tum i. Indotyphis 58: 34 inermis, Chania 47: 83 inermis, Helicodiscus (Hebetodiscus) 42: 93 -- see also H. singleyanus i. inermis, Pseudochama 47: 83, pi. 8; 58 96-7, pi. 4 inezae, Pseudochani. j6: 118. 122, 124, pi. 15 infanduni, Cerion 40: 88 infantula, Goniobasis 41: 61; 43: 6-7 infecta, Heli.x 55: 22 infeli.x, Hiata 49: 111, pi. 8 inflata, Amastra 38: 81 inflata. Cassis 49: 133, 136; 52: 74-6 - see also C. sulcosa i. inflata, Cyclodontina 60: 58 inflata, Lima 44: 126 inflata, Melania 35: 10 inflata, Panamicorbula 48: 120 inflata, Potamomya 45: 105 inflata. Pupa 60: 58 inflata, Semicassis -- see S. gibba i. inflatum, Buccinum 52: 75 inflatula, Macoma 43: 50 inflatula, Ryssota (Lamarckiella) 46: 105 inflecta, Polygyra 39: 80; 40: 66; 43: 66; 44: 17, 44; 47: 144; 48: 57, 82; 50: 120; 51: 59-60, 106; 52: 29, 97 inflectus, Mesodon 55: 9, 97; 58: 127-8; 60: 5 inflexa, Cavolinia 47: 55 informis, Goniobasis 41: 60-1; 43: 6-7 infortunata, Proserpinula 49: 53 infortunata proserpinula, Proserpinula 49: 53 infortunatus, Callistochiton 51: 26 infossus, Anodontites 53: 138 infracarinata, Valvata 35: 24 -- see also V. tricarinata i. infracarinatum, Helisoma 46: 8; 50: 114, 116; 58: 32 infrequens, Acteocina 35: 45-6, 93, 123; 42: 4 infrequens, Tornatina 35: 47 infucatus, Unio 36: 2, 5; 38: 29 infumata, Epiphragmophora 37: 5 infumata. Helix 50: 99 infumata, Monadenia 46: 83; 51: 121 infundibulum, Latirus 58: 39 ingens, Dinocochlea 36: 66 ingens, Pleurodonte 49: 27, 55 ingersoUi, Microphysula 42: 124; 43: 126, 142; 44: 114; 45: 84; 54: 29-31, 53, 57, 96 ingersolli meridionalis, Microphysula 54: 116-7; 55: 143 ingersolli, Thysanophora 37: 79 inglesiana, Micrarionta (Eremarionta) 42: 143 innominatus, Liguus, see L. solidus i. innumberabilis, Petaloconchus 48: 116, pi. 6 inornata, Architectonica (Episcynia) 59: 80; 60: 8-9 inornata, Brachypodella (Simplicervix) 49: 58 inornata, Geomelania 48: 88 inornata, Mesomphix 39: 80; 44: 129; 48: 58; 50: 121 inornata, Vivipara 50: 136 inornatum, Dentaliuni 40: 142 inornatum. Solarium 59: 80; 60: 8 inornatus, Mesomphix 51: 56-7; 53: 87; 55: 14; 58: 127; 59: 68, 90; 60: 5 inornatus, Pupoides 53: 77 inquinata, Elaphroconcha 51: 104 inquinata, Macoma 47: 102; 49: 2 inquinata arnheimi, Macoma 43: 50; 51: 125 194 THE NAUTILUS lo inquisita, Choanopoma 42: 80, pi. 5 inscendens, Bulimulus 39: 25 inscendens, Bulimus 50: 135 insculpta, Opaliii 52: 10 insculptum, Epitonium 52: 10 insessa, Acmaea 36: 34; 44: 93 insigne, Sphaeriuni 57: 95 insignis, Luntia 57: 48 insignis, Trichotropis 38: 26 insolita, Amnicola, see A. aldrichl i. inspinata, Melongena, see M. corona i. instabilis, Acmaea 44: 93; 50: 49 insula, Turritella, see T. uvasana i. insulaeniaris, Cerithidea 56: 21 insulare, Coelocentrum 46: 110 insularis, Corblcula 57: 70 insularum, Polygyra 52: 23 insularum, Tropicorbis, see T. havan- ensis i. Insulivitrina 42: 138-9 intapurpurea, Chione 52: 28; 58: 58 integer, Soniatogyrus 41: 26; 44: 46, 89, 130; 48: 60 Integra, Amnicola 52: 131 Integra, Physa 39: 126; 40: 17, 62; 41: 20; 44: 89, 130; 48: 59; 54: 7-8; 56: 133 Integra, Physella 43: 119 integrum, Campeloma 40: 9, 66 intepurpurea, Chione 54: 21 intercalaris, Planorbis 45: 15 intercalatum, Dentalium 40: 142 intercallata, Martesia 49: 111 intercisa. Helix 50: 98 intercostalis. Turbo 36: 123; 55: 2; 58: 120, 122-4; 60: 55 interfossa, Bittium (Lirobittium) 37: 42 interfossa, Mangelia 58: 99 interfossa, Ocenebra 60: 37-43, pi. 4 interfossa atropurpurea, Ocenebra 60: 38-9, 43, pi. 4 interfossa clathrata, Ocenebra 60: 39, 42, pi. 4 interfossa, Ocinebra 60: 38 interfossa atropurpurea, Ocinebra 60: 38 interfossa, Tritonalia 37: 42; 38: 25; 50: 47 interfossa atropurpurv^a, Tritonalia 50: 47; 60: 38 interfossa beta, Tritonalia 60: 39 interfossa clathrata, Tritonalia 60: 39 interfossa minor, Tritonalia 55: 141; 50: 41 interioris, Goniobasis 58: 34 interioris, Physa, see P. humerosa i. intermedia, Alcadia 48: 12 intermedia, Cyphoma 53: 1, pi. 1; 56: 109, 123, pi. 14 intermedia, Cypraea 51: 2; 52: 2-3, 6, 104; 57: 25, 83-5 intermedia, Hua, see H. praenotata i. intermedia, Melanella 52: 28 intermedia, Mya 38: 25; 47: 102 intermedia. Purpura 35: 84 intermedia, Simnia 53: 1-2 intermedius, Arion 40: 72; 57: 110 intermedius, Spiraxis (Rectaxis) 53: 13, 50, 93 interna, Gastrodonta 35: 44; 39: 80; 42: 91; 44: 128; 46: 58-9; 48: 80; 55: 8, 96-7; 58: 127 nterpictus, Drymaeus 57: 125 nterpictus diversipictus, Drymaeus 57: 125 nterrupta, Codakia 60: 56 nterrupta, Goniobasis 56: 132 nterrupta, Laevaricella 55: 29-30, pi. 2 nterrupta, Lucidella 48: 13 nterrupta, Melania 54: 64 nterrupta, Niso 52: 28 nterrupta, Scolodonta 41: 127 nterrupta, Tellina 49: 119; 52: 28 nterrupta, Vitrinella 59: 59 nterruptum, Choanopoma (Tudorops) 48: 65 nterruptum sanibelense, Cyclostrema 59: 58 nterruptus, Conus 48: 4 nterruptus, Unio 51: 49 nterstinctus, Ischnochiton 38: 28 ntertexta, Gastrodonta 35: 44; 39: 80; 44: 129 ntertexta, Melania 42: 31 ntertexta, Paludina 51: 49 ntertexta, Stagnicola 42: 123; 47: 31-2 ntertextus, Borus 39: 78 ntertextus, Ventridens 46: 59; 48: 106; 53: 86; 54: 88-9; 55: 14; 57: 135, 137; 59: 90-1 ntertextus, Viviparus 55: 83, 86-7, 90 ntertextus illinoisensis, Viviparus 55: 86-7 ntertextus, Zonitoides 48: 58; 50: 120; 51: 56-8: 55: 8. 97 ntorta, Olivella 55:. 93 ntortus, Lanistes 39: 6 ntricata, Oliva see O. emicator i. ntricatus, Phos 58: 36 -- see also P. parvus i. ntroferens. Helix 44: 128; 48: 50 ntroferens, Triodopsis 48: 50 ntuscostatus, Pecten 50: 91 nusitatum, Spirostemma 49: 56-7 nusitatus, Megaustenia 43: 52 nusitatus, Spiraxis (Spiraxis) 49: 25; 53: 11, 15, 16, pi. 5 nvalida, Pleurodonte 49: 55 nvalida consanguinea, Pleurodonte 49: 56 nvalida simson. Pleurodonte 49: 55 nvasa, Hyalosagda, see H. anthoniana i. nversicolor. Helix 50: 139 nversum, Busycon 52: 17 nvolutus, Brannerillus 48: 16 nvolutus praeposterus, Brannerillus 48: 16 nvolutus, Planorbis 47: 66 lo 36: 118; 38: 128, 134, 138-9, 141-2; 40: 30; 41: 28, 60; 42: 36; 49: 74; 52: 127, 130 brevis 38: 141-2 fluvialis turrita 42: 36 loudenensis 38: 138 193 lo INDEX TO lyttonensis 38: 142 powellensis 38: 142 rota 41: 57 spinosa 38: 141 turrita, see fluvialis t. io, Fasciolaria 40: 144 io, Odostomia (Evalea) 50: 48 lolaea -- subgenus of Odostomia lone -- subgenus of Nassa lopas, see Jopas iostoma, Cerithidea 52: 44; 56: 22-3, 27 iostoma, Chama 40: 81; 47: 84-5 iostomus, Potamides 56: 22, 26 iowensis, Oreohelix, see O. strigosa i. Iphigenia 38: 56 altior 37: 130 brasiliensis 60: 19 braziliana 38: 60 Ipsa childreni 57: 83; 58: 144 ipswichense, Spirostemma 49: 56 Irenosyrinx 59: 23 iridescens, Ostrea 41: 46 Iridina 38: 111 iris, Eurynia 44: 130 iris, Lampsilis 36: 100 iris nov-eboraci, Lampsilis 36: 101 iris, Ligumia 36: 100 iris, Micromya 37: 103, 105; 40: 105; 49: 81 iris, Tellina 49: 119 irradians, Chondropoma 40: 39, 89 irradians mahoganyi, Chondropoma 40: 39 irradians, Pecten 38: 113-5; 39: 39; 41: 15: 56: 141; 57: 67; 58: 24, 57, 60; 59: 69 -- see also P. gibbus i. irradians concentricus, Pecten 38: 114 irregularis, Acmaea 58: 95 irregularis, Bulimulus 41: 96; 53: 115 irregularis catlowiae, Bulimulus 53: 113 irregularis, Bulimus 53: 112 irregularis, Pecten (Chlamys) 49: 2; 50: 58 irregularis, Spiraxis 52: 132 irregularis negligens, Spiraxis (Pseudo- subulina) 52: 132; 53: 94, pi. 5 irrigua, Streptostyla (Chersomitra) 55: 60 irrigua quirozi, Streptostyla 55: 60 irrorata, Adamsiella 48: 64 irrorata, Cypraea 51: 3; 57: 84 irrorata, Cyprogenia 40: 66 irrorata. Helix 51: 93 irrorata, Littorina 43: 35, 65; 54: 20; 56: 140-1; 58: 61 irrorata carolinensis, Littorina 49: 136, 139 irrorata, Urocoptis 40: 91 irroratus, Ancylus 37: 12 Irus lamellifera 60: 89 irvinae, Ancylus 35: 8 Isabel, Planorbis 47: 65, 67-8 Isabella, Basilitrona 57: 25 Isabella, Cypraea 36: 121; 44: 103; 50: 79; 51: 3; 52: 6, 104; 55: 2; 57: 25-6, 83-5; 58: 107, 131, 144; 60: 55 Isabella mexicana, Cypraea 46: 112 Isabella antriceps, Luria 57: 26 Isabella atriceps, Luria 57: 26 ischna, Urocoptis, see U. cyclostoma 1. ischna. Varicella, see V. griffithii i. Ischnochiton 39: 36; 41: 105; 59: 104 acutior, see cooperi a. albidus 58: 101 antipodum 58: 101 (Lepidozona) asthenes 37: 43 aureotinctus 58: 101 catalinae 59: 104 cooperi 46: 124 cooperi acutior 58; 101 corrugatus 58: 101 decipiens 49: 43 expressus 58: 101 funiculatus 58: 101 gallina 49: 43-4 interstinctus 38: 28 limaciformis 52: 45 macgillivrayi 58: 101 mertensii 44: 8; 46: 124 muscarius 52: 45 newcombi 58: 101 ophioderma 50: 86 (Lepidozona) pectinulatus 37: 43 peregrinus 58: 101 pollicaris 58: 101 radians 58: 101 regularis 44: 7; 46: 124 scabricostatus 58: 101 sinudentatus 58: 101 subexpressus 58: 101 (Trioplax) trifidus 38: 28 Ischnoradsia 39: 36 Iselica fenestrata 37: 42; 50: 48 maculosa 55: 122 Isidora 43: 93 africana 40: 106 forskali 43: 92-3 (Amerianna) scalaris 44: 34 isidroensis, Helminthoglypta, see Ho traski i. isis, Chloritis (Sulcobasis) 47: 24 islandica, Amauropsis 39: 132 islandica, Arctica 56: 60; 57: 67 islandica, Cyprina 35: 30, 32; 56: 140 islandicus, Colus 39: 135 islandicus, Fusus 35: 88 islandicus, Murex 37: 48 ^ islandicus, Pecten 40: 23; 47: 102; 51: 93, 118-9; 54: 5 islandicus pugetensis, Pecten 40: 77; 51: 125 isocardia, Cardium 37: 55; 39: 83 Isocyprina 59: 108 Isognomon 46: 29 196 THE NAUTILUS Johnsoni isogona, Melania 43: 14 Isoltia 41: 22 Isomeria oreas 58: 117 ispidula, Oliva 42: 11 ispidula gratiosa, Oliva 42: 11 ispidula jayana, Oliva 42: 12 ispidula lactanea, Oliva 42: 11 ispidula longispira, Oliva 42: 11 ispidula martini, Oliva 42: 12 ispidula oriola, Oliva 42: 11 ispidula, Voluta 37: 49 Isthniia 36: 65 dubia 40: 72 ithius, Chrysodomus 60: 93 Itzamna 54: 57 Ividella -- subgenus of Odostomia jacksonensis, Carinifex 45: 133, pi. 11; 47: 1 jacksonensis, Lymnaea (Stagnicola) 45: 133; 47: 1, 10 jacksoni, Euglandina 49: 97, pi. 7 jacobaea, Ostrea 37: 49 jacobaeus, Pecten 38: 91 jacobensis, Sagda, see S. maxima j. Jacosta 59: 119 tuberculosa 50: 11 jaegeri, Helminthoglypta 43: 73; 45: 21 jamaicense, Carychium 48: 88 jamaicensis, Aperostoma 56: 136 jamaicensis, Cyclotus 56: 135, 137 jamaicensis, Geomelania 48: 87 jamaicensis expansa, Geomelania 48: 87 jamaicensis, Helicina (Ampliata) 48: 11 jamaicensis. Helix 44: 138 jamaicensis, Lucina 38: 56; 39: 83 jamaicensis, Lyrodes 52: 87 jamaicensis, Neocyclotus 56: 135-6 jamaicensis, Oxystyla, see O. undata j, jamaicensis, Phacoides 38: 61 jamaicensis, Platystoma 56: 136; 57: 63 jamaicensis, Polydontes (Eurycratera) 49: 56 jamaicensis cognatus, Polydontes (Eurycratera) 49: 56 jamaicensis, Poteria 48: 86; 56: 135-6 jamaicensis lineata, Poteria 56: 136 jamiacensis novus-saltus, Poteria 48: 86 jamaic-ensis. Turbo 36: 15; 56: 135-6; 57: 63 jamaicensis. Varicella 49: 23 jamaicensis, Veronicella 39: 17; 48: 88 Jamaicia -- subgenus of Choanopoma janeirensis, Endodonta 41: 128 janetae, Fenimorca 54: 50 Janira syriaca 50: 58 jan-mayeni, Cingula 39: 132-3 Janthina 38: 56 communis 35: 136 exigua 37: 42; 54: 73 fragilis 38: 60; 54: 75 janthina 35: 136; 54: 75; 58: 60 janthina, Janthina 35: 136; 54: 75; 58: 60 janthina, Murex 37: 49 januarii. Octopus 46: 44 Janulus 60: 94-5, 97 bifrons 60: 95-7, pi. 7 calathus 60: 97 stephanophora 60: 95 janus, Pseudochama 47: 84 Japonia 55: 41-3 barbata 55: 41 gouldi 55: 42 musiva 55: pi. 3 japonica. Cassis 41: 72 japonica, Langfordiella 38: 96 japonica, Lymnaea 44: 34 japonica, Paludina 42: 142 japonica, Paphia (Ruditapes) 49: 2 japonica, Pristiloma 41: 40 japonica, Siphonaria 59: 108 japonica, Tritonalia 40: 32; 49: 1 japonicum, Pupisoma 43: 52 japonicus, Orthaulax 39: 29 japonicus, Viviparus 36: 105; 45: 136 jardineanum, Carychium 48: 88 jaroensis, Helicostyla, see H. decorata j, jarvisi, Adamsiella 48: 64 jaspidea, Marginella 54: 49 Jaton -- subgenus of Murex jaumei, Diadora 57: 32 jaumei, Liguus, see L. blainianus j. javanicum, Opeas 38: 80; 40: 133 javanicum, Prosopeas 41: 32 jayana, Helix 44: 68 jayana, Oliva, see O. ispidula j, jayana, Sagda 48: 136, 138; 49: 53 jayanum, Choanopoma 48: 65 jayanum, Fadyenia 48: 62 jayanus, Unio 38: 29 jayense, Musculium 38: 10 jayensis, Unio 38: 29 jheringi, Endodonta 41: 128 jheringi, Strepta.xis 41: 126 jeannae, Cyclostremiscus 59: 82, pi. 8 Jeanneretia 47: 22; 56: 82, 87 -- also as subgenus of Cepolis jecusculum. Helix 37: 49 jeffreysi, Tellina 45: 109 jeffreysi, Vetulonia 59: 53 jejuna, Cylindrella 38: 61 jejuna, Praticolella 37: 66-8 jenkinsi, Hydrobia 52: 137; 60: 103-4 jenkinsi, Potamopyrgus 60: 104 jenksii, Planorbula 58: 32, 125 Jenneria 40: 18 jensostergaardi, Cyiiraea 52: 122, pi. 9 jepseni, Viviparus 50: 128 jessei, Rectartemon 38: 86-7, 89; 41: 127 Jessica, Anguispira, see A. alternata j. jewettii. Gibberula 58: 100 jewettii, Marginella 36: 34 joaquinae, Oleacina 55: 53, 55 joaquinae, Salasiella 54: 80, 82-3, pi. 6 johnsoni. Bulimulus 46: 109 johnsoni, Cerion 40: 74, 89 197 Johnsoni INDEX TO johnsoni marielinum, Cerion 40: 38 johnsoni, Margarites 35: 50 johnsoni, Oliva, see O. erythrostoma j. johnsoni, Polita 37: 132 johnsoni, Pristiloma 43: 122-3 johnsoni, Prodallia 56: 12-3, pi. 2 johnsoni, Stagnicola 50: 114-5 johnsoni, Vitrea 43: 96, 122 johnstoni, Unio 42: 66 jolyi, Nenia 58: 82 jonesi, Bulimulus, see B. dealbatus j. jonesi, Goniobasis 58: 45 jonesi, Lampsilis 47: 125, 127, pi. 15 jonesi, Unio 37: 101 jonesiana, Polygyra (Mesodon) 51: 135-6, pi. 9 jonkeri, Ootoma 47: 76 Jopas 53: 36 sertum 36: 122; 60: 56 jordanensis, Helisoma, see H. antrosa j. jordani, Pecten 51: 125 joretiana, Hua 57: 21 josephinae, Cerion 49: 112-3, pi. 3 josephinae, Cerion (Strophiops) 49: 49-50 josephinae, Eutrochatella 48: 11 Joubiniopsis 42: 108 jubar. Patella 37: 49 jucundus, Latirus 53: 83, pi. 10 judayi, Amnicola 36: 19-20 judayi, Cincinnatia 48: 110 judasense, Opisthosiphon 42: 98 juddii, Helicina 48: 54 jugosa, Poteria 48: 87 jugosus, Chiton 58: 101 jugularis, Lynmaea, see Lo stagnalis j. jugulata, Eutrochatella 40: 89 jujubinum, Calliostoma 53: 39; 58: 60 jujubinum rawsoni , Calliostoma 58: 38 Julia 57: 86 borbonica 57: 86 equatorialis 57: 86, pi. 9 exquisita 57: 86 floridana 57: 86 gardnerae 39: 34: 57: 86 juliae, Cerion (Strophiops) 49: 112, pi. 8 jullieni, Paludina 56: 128 juloides, Stenochiton 37: 72; 39: 36 junaluskana, Retinella (Glyphognomon) 46: 15, 59, pi. 2 junii, Oreohelix 49: 69 juninensis, Nenia 57: 61, pi. 7 junonia, Aurinia 56: 13 junonia, Scaphella 35: 135; 60: 108 junonia, Voluta 37: 56; 38: 95 juxtidens, Polygyra, see P. tridentata j. juxtidens, Triodopsis, see T. tridentata j. kabrietensis, Tudora 39: 43 kaleontina, Oliva 37: 123 Kaliella gudei 41: 40 kallinubilosus, Pecten (Lyropecten) 56: 110, 124, pi. 14 kalosmodix, Cassis 55: 2 kamchatkana, Haliotis 43: 109; 60: 92 kamehameha, Ostrea 49: 103; 50: 88 kamtschatica, Gulnaria 52: 59 kamtschaticus, Planorbis 52: 59 kanalensis, Placostylus 42: 74 kansasensis, Menetus 51: 129-31 kapiolaniae, Alcyna 36: 121 Karaftohelix -- subgenus of Eulota karaftoensis, Succinea, see S. lauta k. katharinae, Lasmigona, see L. com- planata k. Katherina tunicata 38: 28; 47: 102 katherinae, Bankia 60: 108 Katostoma 35: 101 keenae, Alvania (Willettia) 53: 31-2, pi. 7 keenae, Ocenebra 60: 40-1, 43, pi. 4 keepi, Haplotrema 44: 67 kejong, Leptopoma 44: 141 kekele, Atys 52: 120 Kellia laperousii 38: 27; 43: 50; 56: 42 kellettii, Micrarionta 44: 86 kelseyi, Chrysodomus 37: 35 kelseyi, Exilia 59: 63 kelseyi, Exilioidea 59: 62-3, pi. 7 kelseyi, Milneria 37: 41; 50: 86 kelseyi, Rissoina 37: 43 kelseyi, Tritonofusus (Plicifusus) 59: 62 kelseyi, Turbonilla (Chemnitzia) 37: 42 kennedyi, Sulcocypraea 40: 18 kennerleyi, Marcia 56: 43 Kennerlia bilirata 38: 24; 51: 101 kennerlyi, Anodonta 48: 48; 55: 18 kennerlyi, Marcia 38: 24; 49: 18 kennerlyi, Odostomia (Amaura) 51: 101 kennicotti, Anodonta 42: 96; 50: 114; 58: 79 -- see' also A. grandis k. Kerguelenia 59: 108 kermensis, Helminthoglypta, see H. tudiculata k. kernensis, Helminthoglypta, see H. allyniana k. and H, tudiculata k. kettlemanensis, Fluminicola 48: 15 kettlemanensis woodringi, Goniobasis 48: 15 kettlemanensis, Helisoma 48: 17 kewaloensis, Mitra 36: 122 keyserlingi, Limax 40: 72 khyoungensis, Megaustenia, see M. praestans k. kieneri, Busycon 53: 24-6 -- see also B. perversum k. kieneri, Scaphella (Aurinia) 60: 108 kieneriana, Quadrula, see Q. pustulosa k. kingi, Lymnaea (Polyrhytis) 46: 98 kingi, Stagnicola 46: 97, 99; 47: 26 kingii, Medionidus 49: 81 kingswoodi, Sagda 48: 137-8, pi. 9; 49: 54 kinonis, Holospira 53; pi. 12 kinonis, Holospira (Haplocion) 53: 94 kiosquiformis, Thais 37: 122, 124 kiowaensis, Polygyra 40: 3; 45: 141 kirklandi, Ferrissia 54: 112 198 THE NAUTILUS Lacuna kirklandi, Pisidium 35: 112; 42: 25 kirklandiana, Lymnaea 53: 135 kirkpatricki, Pickworthia 49: 93 kirtlandiana, Fusconaia, see F. subro- tunda k. kirtlandiana, Stagnicola 48: 20 kirtlandianus, Anculosa 35: 11 kirtlandianus, Anculotus 35: 10 kitotoensis, Vaginula 39: 14 klamathensis, Lanx 38: 75; 41: 120 klamathensis, Parapholyx, sec P. effusa k. klaniathica, Monadenia, see M. fidelis k. kleinianus, Unio 36: 2-3, 5 knorrii, Achatina 52: 27 knudseni, Helicina 38: 82 kobelti, Bela 51: 116-7 kobelti, Fusinus 37: 41 kobelti, Oenopota 51: 116 Kobeltocochlea 55: 139 kochi. Anguispira 45: 84; 55: 23 kochi eyerdami, Anguispira 55: 23 kochi occidentalis, Anguispira 41: 87; 43: 126; 55: 23 kochi. Ashmunella 36: 120 kolymense, Helisoma, see H. trivolvis k. kooringensis, Glyptorhagada 51: 24 kootaniensis, Ancylus 38: 75 kootaniensis, Lanx 38: 75 Kopionella 39: 36 kopnodes, Omphalina 44: 128 koto, Lamellaria 58: 17 kowloonensis, Serniyla 57: 20, pi. 6 kraussii, Vaginula 39: 17' kraussii, Veronicella (Leidyula) 42: 46; 48: 84, 88 kraussii trichroma, Veronicella (Leidyu- la) 48: 84, 88 krebsi, Rissoa 46: 119 krebsi, Rissoina 46: 119 Krebsia 41: 22 krenneri. Pecten 50: 27 kroyeri, Plicifusus 39: 135; 51: 104 Krynickia 35: 79 melanocephala 35: 79 krynickii, Limax, see L. maxinius k. Krynickillus 35: 79 cristatus 35: 79 dymezeviczii 35: 79 eichwaldii 35: 79 maculatus 35: 79 melanocephalus 35: 79 rninutus 35: 79 kuhnsi. Atys 52: 119 kunkuniana, Pecten 47: 64 kunkumana flabellum. Pecten 47: 64 Kurtzia 58: 108 arteaga 58: 108 gordoni 58: 108 Kurtzina 58: 108 beata 58: 108 kweichowensis, Hua 57: 21 kyskaensis, Alvania 53: 31 kyskensis, Cingula (Nodulus) 51: 123 labeo, Pleurodonle 51: 26, pi. 2 labiata, Area 48: 120 labiata. Area (Scapharca) 37: 127 labiata, Marginella 39: 85 Labiosa 36: 110 (Raeta) canaliculata 39: 82, 84;49: 135; 54: 21 (Raeta) undulata 37: 130; 38: 99 labiosa, Alcadia, see A. brownii 1. labiosa, Columbella 45: 76 labiosus, Planaxis 36: 122 labradorensis. Aporrhais, see A. occidentalis 1. labrolineata, Cypraea 58: 131 labrosa, Cyclodontina (Pantagruelina) 60: 58-9 labrosa. Helix 60: 59 labrosa, Marginella 60: 62 labrosus, Scarabus 60: 59, 106 labyrinthica. Helix 35: 91 labyrinthica, Strobilops 35: 91, pi. 2; 42: 135; 43: 68. 118-9; 44: 87; 48: 71, 106; 53: 47, 88; 54: 19; 55: 10, 97; 57: 132; 60: 98 labyrinthica strebeli, Strobilops 40: 69 labyrinthica texasiana, Strobilops 39: 12; 40: 16 labyrinthica Virgo, Strobilops 44: 87-8; 47: 139 Labyrinthus 51: 24 lachrynia, Goniobasis 53: 45 lachryniosa, Quadrula 36: 47, 54 laciniata, Delphinula 60: 55 laciniatum, Gyrotoma 58: 47 laciniosa, Helicina 48: 54 laciniosa. Patella 37: 49 laciniosa, Sturanya 48: 54 lacinosa, Patella 37: 49 lacqueata, Melania 51: 92 lactanea, Oliva, see O. ispidula 1. lactea. Helix 50: 72; 51: 93, 132-4; 55: 31; 56: 104 lactea, Otala 50: 72; 57: 105 lactea, Otella 58: 67 lactea, Ovula 60: 55 lactea, Polinices 43: 132; 53: 111 lactea, Vaginula 39: 14; 44: 136 lacteodens, Paravitrea, see P. capsella 1. and P. placentula 1. lacteofluviatilis, Poteria 48: 62 Lacteoluna 48: 135; 50: 70-1; 54: 60; 56: 2,5-- also as subgenus of Hyalosagda caymanensis 56: 5 cistula 56: 5 cystula 56: 9 summa 56: 5 lacteolus, Tachyrhynchus 38: 26 lacteum, Cerithium 36: 121 lacticolor. Helix, see H. tingitana 1. lactuca, Chama 51: 74; 56: 117, 120, 123, pi. 12 Lacuna 38: 16, 26; 44: 93; 53: 22 aurantiaca, see unifasciata a. 199 Lacuna INDEX TO carinata 38: 16 -- see also solidula c. compacta 38: 16 -- see also solidula c. divaricata 38: 16, 18 effusa, see porrecta e. exaequata, see porrecta e. fusca 38: 18 -- see also vincta f. marmorata 37: 42; 38: 17-8; 50: 48 pertusa, see vincta p. porrecta 38: 17; 50: 48 porrecta effusa 38: 17 porrecta exaequata 38: 17 porrecta puteoloides 38: 17 solidula 38: 16 solidula carinata 38: 17-8; 50: 48 solidula compacta 38: 17 unifasciata 36: 18 unifasciata aurantiaca 38: 17-8 variegata 38: 18; 50: 48 vincta 35: 86; 38: 16, 50; 39: 133; 56: 59, 143; 58: 21 vincta fusca 38: 50 vincta pertusa 35: 87 lacustre, Musculium 40: 29; 42: 27 lacustre, Ptychobranchus, see P. fasciolare 1. lacustris, Amnicola 60: 86-7 lacustris, Ancylus 35: 5; 38: 84; 39: 46, 114-5; 40: 108 lacustris, Calyculina 52: 59 lacustris, Lampsilis, see L. gracilis 1. lacustris, Patella 35: 57: 39: 46 lacustris, Velletia 38: 84 lacuum, Sphaerium, see S. acuminatum 1. laddi, Castalioides 48: 34 laeta, Goniobasis 38: 67; 58: 46 laeta, Gyrotoma 38: 67 laeta, Helicina (Aphanoconia) 43: 135 Laevapex -- subgenus of Ferrissia Laevaricella 55: 25-6, 29, 52, 55 -- also as subgenus of Varicella (Boriquena) glabra 55: 26, 29-30, pi. 1 interrupta 55: 29-30, pi. 2 (Boriquena) playa 55: 29, pi. 2 semitarum 55: 26 laeve, Deroceras 48: 57; 53: 130; 55: 31; 57: 112-3; 58: 16; 59: 92; 60: 99 laeve campestre, Deroceras 51: 106; 52: 96-7 laeve gracile, Deroceras 54: 19, 111; 55: 7 laeve, Sphaerium, see S. stamineum 1. Laevicardium -- also as subgenus of Cardium Laevicardium elenensis 52: 45; 55: 121 laevigatum 58: 58 mortoni 54: 21; 56: 140, 143; 57: 31; 58: 58 serratum 49: 118; 54: 21 Laevicaulis 39: 14, 18; 44: 137 laevigata. Cassis 52: 75 laevigata, Corbula 40: 42 laevigata, Donax 37: 82-4 laevigata. Helix 47: 144 -- see also H. alternata 1. laevigata, Mesomphix 39: 80; 40: 66; 44: 17; 46: 59, 91; 47: 44; 58: 127 laevigata latior, Mesomphix 46: 58 laevigata, Modiolaria 54: 3-4 laevigata, Velutina 35: 87; 38: 27; 39: 132; 50: 48; 54: 3 laevigatum, Cardium, see C. serratum 1. laevigatum, Cerion 56: 7 laevigatum, Cerithium 56: 23, 28-9 laevigatum, Laevicardium 58: 58 laevigatum, Sphaerium 57: 95 laevigatus. Chiton 52: 44 Laeviglandina 55: 52, 55 laevipes alba, Ariophanta 43: 54 Laevirostris 47: 75 laevis, Agriolimax 37: 28 laevis, Agriolimax (Deroceras) 51: 58 laevis campestris, Agriolimax (Deroceras) 50: 121 laevis, Aligena 55: 48 laevis, Limax (Hydrolimax) 35: 80 laevis, Margaritana 36: 44 laevis, Nucula 51: 48 laevis, Paludestrina 56: 144 laevis, Ptychobranchus 36: 44 laevis, Veronicella 39: 13, 16; 42: 44, 46; 48: 84, 88; 49: 107 laevis schivelyae, Veronicella 42: 44 laevissima, Lampsilis 36: 99; 41: 19 laevissima, Proptera 36: 99; 41: 19-20 laevissima, Rissoa 46: 119 laevissima, Rissoina, see R. browniana 1. laevitesta, Poteria 56: 3 Laevityphis 58: 34 laeviusculus, Sigmataxis 55: 25, 28, pi. 1 laeviusculus, Spiraxis 55: 28 laeviusculus. Varicella 48: 85; 49: 22, 27 laeviusculus perplexa. Varicella 48: 85 Laevoleacina 55: 52-3, 55 oleacea 40: 90 solidula 40: 90 subulata 40: 90 lafondii, Cerithium 56: 21-2 Lagochilus 55: 40-3 clathratus 55: 43 glabratus 55: 43 hungerfordianus 55: 43 longipilus 55: 43 pellicostus 55: 43 pilosus 55: 43 scissimargo 55: 43 sexfilaris 55: 42-3, pi. 3 tenuipilus 55: 43 trichophorus 55: 42-3 lagotis, Lymnaea 50: 12 Laguncula pulchella 54: 119 lais. Helix 57: 18 lamononii. Patella 45: 25 lamarcki, Mitra 36: 122 lamarcki, Vitrina 42: 138-9 200 THE NAUTILUS Lampsilis lamarckiana globosa, Rhysota 46: 62, 105 Lamarckiella -- subgenus of Ryssota lamarckii, Calyptraea 39: 9-10 lamarckii, Cerithium 56: 26, 29 lamarckii, Helicolimax 42: 138 lamarckii, Pleurodonte 49: 55 lambei, Papuina 59: 94 lambei novohibernica, Papuina 59: 94, pi. 9 lambis, Pterocera 55: 2; 60: 55 Lamellaria 48: 43; 52: 124; 53: 79-80; 55: 104; 58: 17-8 cochinella 53: 80 diegensis 48: 43; 52: 124 digueti 52: 124 koto 58: 17 leucosphaera 56: 62, pi. 3; 58: 18 pellucida 52: 28 perspicua 35: 87 rhombica 50: 48; 52: 124 sharoni 52: 123, pi. 9; 59: 104 stearnsi 48: 43; 52: 124 lamellata, Leptinaria 39: 2, 144; 49: 25; 58: 91 lamellata concentrica, Leptinaria 39: 2, 144; 57: 47 lamellata, Paravitrea, see P. multiden- tata 1. lamellata albida, Acanthinula 36: 67 Lamellaxis 48: 84; 58: 85, 87-90 abbreviatus, see mexicanus a. apiculum 58: 85 (Leptopeas) argutus 53: 92; 58: 90-2 bequaerti 58: 85, 90 (Tomopeas) clavulinus 58: 89 (Allopeas) gracilis 48: 84; 49: 25; 58: 85, 88-91 layardi 58: 85 martensi 53: 93; 58: 91 martensi modestus 53: 93; 58: 91 martensiana 58: 91 (Allopeas) mauritianus 58: 89 mexicanus 53: 93; 58: 85, 91; 59, pi. 9 mexicanus abbreviatus 53: 93 (Leptopeas) micra 49: 25; 58: 90 modestus, see martensi m. monodon 49: 25 robertsi 49: 25 striosus 49: 25 tamaulipensis 53: 93 lamellicostatum, Opisthosiphon 42: 98; 47: 131-2 Lamellidea 47: 60-2 adamsoni 47: 62 mumfordi 47: 62 uahukana 47: 62 variabilis 47: 60 lamellidens, Gastrodonta 42: 88 lamellidens, Paravitrea 42: 88; 44: 129 lamellidens, Vitrea 35: 43 lamellifer, Bulimulus 46: 49-50,110 laniellifera, Discohelix (Discosolis) 48: 128 lamellifera, Venerupis 44: 93; 55: 110; 56: 42 lamellifera, Irus 60: 89 lamellifera, Omalaxis 48: 128-9 lamellifera, Pseudomalaxis (Paurodiscus) 48: 128-9, pi. 7; 59: 9-10 lamelliferum, Zaphysema (Meiophysema) 48: 136; 49: 54 lamellosa, Cumingia 37: 41, 129; 44: 92; 56: 42 lamellosa, Endodonta 42: 70 lamellosa, Thais (Nucella) 38: 25; 41: 106; 50: 47; 54: 145-6 lamellosa hormica, Thais 51: 124 lamellosum^ Choanopoma 48: 65 laminata, Clausilia 59: 118 laminata, Endodonta 38: 83 laminata, Marpessa 59: 118 Laminella gravida 38: 79 Lampadia 35: 101 lederi 42: 138 webbiana 35: 102 lampadophora. Helix 37: 49 Lampania 36: 28 cumingi 40: 32 lampas, CarocoUa 59: 117 lampas, Helix 44: 138-9; 59: 117 Lamprocystis 42: 67, 141 excrescens 42: 67, 141 Lampsilis 35: 132; 46: 107; 52: 125; 54: 9; 59: 110 alata 36: 99; 44: 90 amygdalum 41: 139 anodontoides 35: 17-8; 36: 54. 101; 40: 66; 43: 90-1; 49: 81 anodontoides fallaciosa 39: 93 berlandierii 47: 73 canadensis, see ventricosa c. capax 36: 99 cardium 46: 107 cariosus 43: 88; 44: 20; 50: 105 claibornensis 37: 142; 49: 81 claibornensis obtusa 37: 141 clarkiana 37: 142, 144 cohongoronta, see ovata c. and ventri- cosus c. constricta 42: 141 ellipsiformis 36: 100 excavata 37: 142, 144; 39: 93 fallaciosa 36: 101; 43: 90-1; 56: 144 -- see also anodontoides f. fasciola 36: 101; 49: 81 fimbriata 36: 36 gracilis 35: 132; 36: 99 gracilis lacustris 35: 131-2 grandis, see higginsii g. higginsii 36: 101 higginsii grandis 36: 102 iris 36: 100 iris nov-eboraci 36: 101 jonesi 47: 125, 127, pi. 15 lacustris, see gracilis I. laevissima 36: 99; 41: 19 201 Lampsilis INDEX TO latissima, see recta 1. leptodon 36: 99 ligamentina 36: 54, 100; 43: 90-1; 44: 90 lurida, see ventricosa 1. luteola 36: 101; 42: 53; 43: 90-1; 44: 90; 48: 100 luteola rosacea 35: 131; 36: 24 multiradiata 36: 101 nov-eboraci, see iris n. obtusa, see claibornensis o. orbiculata 36: 101 ovata 37: 142, 144; 39: 93; 40: 67 ovata cohongoronta 44: 19 ovata satura 37: 142; 39: 93 ovata ventricosa 37: 142-4; 39: 93; 40: 67; 44: 19 parva 36: 100; 44: 90; 47: 147 paula 37: 100 pectorosa 41: 139 propria 37: 137 radiatus 43: 88; 44: 69-70; 49: 80; 58: 79; 59: 29 rafinesqueana 41: 138, pi. 1 recta 35: 131; 36: 100; 44: 90 recta latissima 35: 131 rosacea, see luteola r. and siliquoidea r. rovirosai sanjuanensis 36: 36 ruthveni 36: 36 sanjuanensis, see rovirosai s. satura, see ovata s. siliquoidea 36: 101; 37: 141; 39: 112-3; 40: 9, 67; 41: 20; 42: 53, 115; 44: 130; 47: 9; 49: 81; 58: 79; 59: 110 siliquoidea rosacea 40: 50; 42: 52-3, 96, 115, 136; 44: 47 simpsoni 40: 4 streckeri 41: 139, pi. 2 subangulata 47: 127 subrostrata 36: 100 superiorensis 38: 10-1; 39: 122 umbrans 37: 137 ventricosa 36: 101; 39: HI, 113; 44: 20, 90, 130; 46: 107; 49: 80; 54: 9; 59: 110 -- see also ovata v. ventricosa canadensis 35: 131; 41: 92; 42: 53; 44: 48 ventricosus cohongoronta 44: 19-20 ventricosa lurida 42: 53 vesicularis 41 : 53 villosa 47: 126-7 wrightiana 41: 139, pi. 2; 47: 127 lanceata, Lymnaea 40: 59; 42: 16; 53: 134-5 lanceata, Stagnicola 42: 97 lanceata, Terebra 37: 63 lanceata oahuensis, Terebra 36: 123 lanceatum, Buccinuni 37: 49 lanceolata Colubraria 52: 28 lanceolata Lymnaea 37: 24 lanceolata, Partula 44: 141 lancides, Lanx (Fisherola) 38: 73-5 langl'ordi, Strombilormis 38: 97 langfordi, Terebra 36: 123 Langfordiella 38: 96 japonica 38: 96 langinosus, Hemphillia 58: 101 langsdorfi, Vaginulus (Phyllocaulis) 41: 129 langula, Patella 37: 49 lanierianus, Planorbis 56: 8 lanigera, Velutina 54: 3 Lanistes intortus 39: 6 pilsbryi 39: 5 sanagaensis 43: 107 lansingi, Anceyia 42: 91 lansingi, Pristiloma 47: 112 Lanx 38: 73-4; 39: 18; 40: 106-7 alta 38: 75 klamathensis 38: 75; 41: 120 kootaniensis 38: 75 (Fisherola) lancides 38: 73-5 newberryi 38: 74-5 nuttalli 38: 74-5 patelloides 38: 73-5 subrotunda 38: 73 subrotundata 38: 75 subrotundus 38: 75 undulatus 47: 28 laosensis, Margaritana 36: 43 laperousii, Kellia 38: 27; 43: 50; 56: 42 lapicida, Helicogona 44: 71 lapicida, Petricola 49: 119; 54: 40 lapicidus. Vortex 59: 119 lapidaria, Pomatiopsis 37: 25, 31; 40: 120; 43: 42-3, 118-9; 44: 22, 38-9, 89; 50: 85; 53: 96; 54: 145; 58: 113; 60: 85 lapidaria, Terebella 60: 26 lapidea, Cipangopaludina 56: 127 lapilloides, Monoceros 38: 19-21 lapilloruni, Bellamya, see B. quadrata 1. lapillus, Monoceros 38: 20 lapillus, Olivella, see O. biplicata 1. lapillus. Purpura 40: 101-2; 45: 123; 46: 103 lapillus, Thais (Purpura) 36: 69; 39: 39, 134; 43: 45-8; 55: 72; 56: 59, 106; 57: 7; 58: 21, 137-8, 141-2 lapillus imbricata, Thais 39: 39 lapillus, Unio 51: 92 lappa, Murex 43: 138 laqueata, Anomia 49: 2 laqueata, Goniobasis 36: 116, 119; 40: 8-9, 66; 41: 58; 42: 32; 53: 76; 56: 132-3 laqueatus, Pecten 58: 54 Laqueus californicus 38: 27 (Brach) largillierti, Beringius 39: 135 largillierti, Cerithium 56: 24 largillierti, Cyclostoma 37: 91 largillierti, Thaumastus 43: 77 Larina 44: 35 Larkiana 49: 142 laronus, Crassatellites 46: 9-10 larva, Rimula 57: 37-8 larvaeformis, Chiton 39: 49 202 THE NAUTILUS Lecythoides Lasaea 56: 31-3, 43 cistula 56: 31-2 miliaris 56: 32 rubra 36: 18; 37: 41 subviridis 56: 31 lasia, Haliotis 46: 139 lasius, Trophon 52: 11, pi. 1 Lasniigoiia 52: 125 (Sulcularia) badia 36: 83 complanata 36: 97; 39: 90, 122; 44: 90 complanata katharinae 46: 68 conipressa 36: 97 costata 36: 97; 40: 66; 44: 90, 130; 59: 110 costata eriganensis 35: 133 eriganensis, see costata e. etowahensis 36: 129 georgiana 36: 129 (Alasminota) holstonia 36: 83, 129-30 katharinae, see complanata k. Lasmodonta sandwichensis 37: 3 lasperlensis. Area (Barbatia) 37: 12^7 Lastena lata 40: 66 lata, Lastena 40: 66 lata, Opeas 45: 72 lata, Petricola, see P. pholadiformis 1. lata, Urocoptis (Spirocoptis) 49: 52 lata antonionis, Urocoptis (Spirocoptis) 494 57 lata manchionealensis, Urocoptis (Spiro- coptis) 49: 57 latchfordi, Planorbis, see Po antrosus 1. lateralis, Mactra 41: 15-6; 43: 132; 56: 60 lateralis, Modiolaria 58: 17, 57 lateralis, Mulinea 36: 11; 38: 50, 84; 49: 132; 56: 142; 58: 59 lateralis corbuloides, Mulinia 54: 21; 58: lateralis, Musculus 49: 117 lateraria, Patella 37: 49 lateritia, Melanoides 49: 76-9; 50: 18 lateunibilicata, Gastrodonta 43: 144 Latia dalli 38: 143 laticostatus, Pecten 38: 116 latilirata, Chione 52: 33; 54: 21; 56: 13; 58: 58 latior, Succinea 56: 8 Latipes 39: 15, 18 -- subgenus of Vaginulus Latirus 52: 84 brevicaudatus 53: 110 castaneus 52: 45 cayohuesonicus 58: 39 ceratus 52: 45 cochlearis 52: pi. 5 craticulatus 60: 56 cymatias 53: 110 cymatius 53: pi. 12 infundibulum 58: 39 jucundus 53: 83, pi. 10 maderensis 52: 85 maxwelli 52: 86, pi. 5; 53: 83 mcgintyi 52: 84-6, pi. 5; 53: 83 recurvirostrum 52: 85 rudis 52: 45 seminolensis, see tessellatus s. smaragdula 60: 56 tessellatus 50: 22 tessellatus seminolensis 49: 139; 50: 22 trochlearis 52: 85-6 tuberculatus 46: 45 Latisipho -- subgenus of Colus latispira, Obeliscus 57: 127 latissima, Cipangopaludina 56: 127 latissima, Lampsilis, see L. recta 1. latissima, Ligumia, see L. recta 1. latissima, Neritina 46: 45 latissimus, Vitrinizonites 35: 43; 40: 3, 132, 136; 45: 138; 46: 58, 91; 52: 126 latissimus uvidermis, Vitrinizonites 45: 138-9 latistomus, Gyraulus 46: 9 latitans, Melania 41: 58 latizonatus, Drymaeus, see D. multl- lineatus 1. latonia, Theba 50: 10 Laua 56: 41 -- subgenus of Diastole lauae, Diastole (Laua) 56: 41 laurae, Goniobasis 58: 34 laurentiana, Lymnaea 40: 35 laurentianus, Vaginulus (Sarasinula) 44: 136 Lauria 36: 63 cylindracea 50: 18 fasciolata 41: 108 lauta karaftoensis, Succinea 41: 40 lauta, Terebra 36: 123 lauta, Wanga 57: 21 lavalleanum, Cerithium 56: 22 59 lavendulus, Conus 41: 44-5 Lavigeria 49: 78 lawi, Helix 40: 132 lawi, Unio 40: 132 lawi, Zonites (Gastrodonta) 40: 132 lawrenci, Goniobasis 41: 62 laxa, Delphinula 51: 48 laxus, Vorticifex 47: 26 layardi, Lamellaxis 58: 85 layardi, Opeas 59: 105 laysanensis, Philbertia 36: 122 leachi inflata, Bithynia 52: 59 leai, Lymnaea (Stagnicola) 42: 121 leanum, Cochlodesma 56: 61 leanum, Periploma 35: 32; 56; 141 lecanium, Siphonaria 52: 46 lecythis, Cipangopaludina 56: 127 lecythis crassior, Cipangopaludina 56: 127 lecythis, Paludina 56: 127 Lecythoconcha 56: 127 lecythoides, Cipangopaludina 56: 127 lecythoides aubryana, Cipangopaludina 56: 127 lecythoides fluminalis, Cipangopaludina 56: 127 203 Leda INDEX TO Leda 36: 34; 50: 100 austini 49: 113 (Adrana) crenifera 37: 126 elensis 37: 126 fossa 38: 24 glacialis 51: 9 hamata 49: 14 minuta 38: 24; 40: 22 pernula 40: 22 taphria 60: 91 tenuisulcata 35: 31; 40: 22 lederi, Lampadia 42: 138 leibii, Obovaria 44: 47 leidyi, Vivlparus 44: 36 leidyi formosa, Viviparus 44: 36 Ledoulxia 50: 70 Leidyula 42: 44; 44: 132-4; 48: 84 -- also as subgenus of Veronicella floridana 42: 45-6 leightoni, Amnicola 35: 23; 44: 22 -- see also A. winkleyi 1. Leila 36: 7-8; 49: 83 bahiensis 36: 8 blainvilleana 45: 56 grayana 36: 9 sowerbyana 36: 9 trapezialis 36: 8 Leiostoma 44: 138 bulblformis 44: 138 Leiostraca schwengelae 52: 34 -- also as subgenus of Eulima Leiostracus 53: 28-9 perlucidus 53: 28 ruthveni 53: 28 webberi 53: 28, pi. 7 leithii, Diala 35: 85, 134 lemniscatum, Cerithium 60: 55 Lemniscia 36: 46 calva veterna 36: 46 galeata 36: 46 lempensis, Nephronaias 40: 106 lencops, Nassa, see N. moesta 1. lens, Mitra 44: 25; 52: 45 lens, Obovaria, see O. subrotunda 1. lenticularis, Periploma 47: 85 lenticularis. Planorbis, see P. exacuus 1. lenticularis, Semele 37: 129 lentiginosa, Anachis 45: 143 lentiginosiformis, Strombus 37: 49 lentiginosus, Strombus 60: 55 lentum, Helisoma 53: 78 -- see also H. trivolvis 1. lentus, Planorbis 39: 12; 47: 79; 51: 93 Leonardia 42: 47 nevilliana 42: 47 leoni, Meioceras 46: 122 leonina, Chioraera 35: 51, 54; 36: 87-8, 96 leonina, Cryptaxis 35: 102 leonina, Melibe 35: 55; 36: 86, 89-90. 92-6, 135-7. pis. 2-5; 38: 34 leonina, Monadenia, see M. fidelis 1. leopardus codonensis, Helicostyla 48: 69 leopardus meladryas, Helicostyla 48: 68-9 Lepeta 46: 104 caeca 39: 131; 54: 3 caecoides 38: 27 concentrica 38: 27 lepida, Oliva, see O. sidetia 1. lepida, Rissoa 51: 36 Lepidochitona 49: 43 flectens 49: 42-3 heathi 49: 43 lineata 46: 123 lowei 56: 43 raymondi 46: 123; 49: 43 tropica 53: pi. 12 Lepidopleurus 46: 124 C. B. Adamsii 58: 100 ambustus 49: 42 carinatus 40: 141 comptus patuloides 58: 100 heathi 49: 42 nexus 49: 42 patuloides, see comptus p. Lepidozona -- subgenus of Ischnochiton leporilabre, Choanopoma, see C. hill- ianum I. leprosa, Hua 57: 21 Leptachatina 38: 77; 41: 103; 45: 125-6 antiqua 38: 83 brevicula 38: 83 brevicula micra 38: 83 cylindrata 38: 82 deceptor 41: 103 fragilis 38: 81 gummea 38: 81 haenensis 41 : 103 leucochila 38: 83 micra, see brevicula m. oryza 38: 81 striatula 38: 82 subcylindracea 38: 81 Leptarionta 41: 144; 43: 116; 56: 82 guillarmodi 40: 65 maxwellsmithi 43: 116-7 zhorquinensis 43: 117 Leptaxis 35: 101, pi. 3 bifasciata, see chrysomela b. chrysomela 35: 102-3 chrysomela bifasciata 35: 103 erubescens 35: 101-3 exornata 35: 103 fluctuosa 35: 102-3 forensis 35: 13, 103 furva 35: 102 furva grandissima 35: 103 (Cryptaxis) groviana 35: 102 membranacea 35: 102 undata 35: 101 vulcania 35: 101 wollastoni 35: 103 wollastoni minor 35: 103 Leptinaria 39: 2, 4, 144; 40: 64, 143; 44: 82; 58: 84, 88-9 bequaerti 39: 79,- pi. 4 charlottei 36: 32; 39: 79-80 204 THE NAUTILUS Liebmanni concentrica, see lamellata c. imperforata 36: 32 lamellata 39: 2, 144; 49: 25; 58: 91 lamellata concentrica 39: 2, 144; 57: 47 marmorefe'nsis 39: 144 Parana 39: 79, pi. 4 perforata 39: 144 unilamellata 58: 84, 88, 91 urichl 58: 90 Leptobyrsa 46: 50 LeptobyrsHfe 46: 50 leptocaryon, Buccinum 37: 49 Leptochiton crassus 58: 100 Leptodea fragilis 36: 99; 38: 136; 39: 91; 40: 67; 44: 47; 59: 110 leptodon 36: 99 leptodon, Lampsilis 36: 99 leptodon, Leptodea 36: 99 Leptoloma 56: 82 -- subgenus of Dialeuca Lepton fabagella 60: 71 longipes 60: 71 Leptonaias 36: 36 Leptopeas 48: 84; 58: 85, 90-1 -- subgenus of Lamellaxis Leptoplax rubrotincta 58: 100 Leptopoma 46: 67; 53: 36 kejong 44: 141 vitreum 50: 54 Leptosynapta 45: 142 leptothali, Veronicella 48: 83-4, 88, pi. 3 Leptothyra bacula 37: 43; 43: 28 carpenter! 37: 43; 44: 93 engbergi 43: 27, pi. 3 subobsoleta 59: 104 leptoticta, Geoniitra 35: 13 Leptoxis 46: 38; 47: 151; 53: 67 rapaeformis 35: 10 leptum, Campeloma 54: 12, 14-7, pi. 1 Lepyrium 58: 48 showalteri 58: 48 lerenia, Teinostoma 59: 3, 6, pi. 2 lermondi. Caecum (Meloceras) 38: 7 lermondi, Pisidium 37: 22 lesleyi, Pleurobema 57: 16 lesliei, Orchidium 51: 87 lesliei, Watsonia 51: 87 lessoni, Siphonaria 59: 108 Lessonia 51: 87-8 lessonil, Callistochiton, see C. neara 1. lesteri. Helmintho'glypta, see H. ayresiana 1. lesueuri, Limacina 47: 55 letsonl,Pyrgulopsls42: 55-6;43: 103;51: 68 leucochila, Leptachatina 38: 83 leucochilus 36: 63 Leuconia 40: 125-6 occidentalis 40: 125-6 remiensis 40: 126 Leuconopsis 40: 126 obsoleta 40: 126 Leucopepla 40: 125-6 bidentata 40: 126 leucophaea, Arion, see A. circumscriptus 1. leucophaeata, Mytilopsis 50: 143; 54: 25 leucophaeata, Congeria 43: 34; 50: 143 leucopleura, Acmaea 38: 60 leucopleura, Brachypodella 40: 143 leucops, Nassa 46: 51 leucoraphe, Cepolis 56: 82 leucosphaera, Lamellarla 56: 62, pi. 3; 58: 18 leucostonia, Anoma, see A. nigrescens 1. leucostoma, Cardium 49: 118 leucostoma, Cipangopaludina 56: 127 Leucosyrinx clionella 57: 116 pacifica 59: 23 leucozona, Engina 42: 40 Leucozonia 38: 57 cingulata 37: 123; 43: 137; 52: 43, 45 cingulifera 35: 121; 38: 60; 39: 85; 52: 28 ocellata 38: 60 coarctata 37: 124 leucozonias. Varicella 45: 54; 49: 22, 26; 55: 25, 28 leucozonias striatella. Varicella 49: 27; 55: 24, 26, pi. 1 leucozonum, Buccinum 42: 40 levettei heterodonta, Ashmunella 54: 110 leviathan, Cypraea 57: 24 leviathan propinqua, Cypraea 57: 24 Levicepolis 56: 82, 88 -- subgenus of Cepolis levicula, Polinices 35: 30 levior, Anoma, see A. nigrescens 1. and splendens 1. levis concinna, Anoma 49: 57 levis, Micrarionta 55: 102 levis, Varicella 49: 26; 55: 26 levissimum, Sphaerium, see So striatinum 1. lewisi, Alcadia 56: 4, 9 lewisi, Polinices (Euspira) 50: 48; 53: 22, 136; 54: 139; 60: 90-1 lewisi, Valvata 58: 78 lewisi ontariensis, Valvata 44: 119 Lewisia 48: 14 -- subgenus of Fadyenia lewisiana, Cepolis 56: 9 lewisiana, Cepolis (Hemithrochus) 56: 4 lewisii, Anculosa 35: 11-2 lewisii, Campeloma 47: 18; 56: 132; 58: 5 lewisii, Gyrotoma 58: 47 lewisii, Pleurocera 46: 30-1, 34, pi. 1 lewisii, Valvata 38: 11; 40: 50, 56, 114; 41: 85, 137; 44: 30, 119-20; 54: 144; 57: 46 lewisii helicoidea, Valvata 38: 11; 40: 76; 44: 120-1; 51: 130 lewisii precursor, Valvata 41: 136; 44: 22 leydigi, Veronicella 38: 80 liana, Tellina 58: 105, 145 Liardetia 56: 41 libellula. Helix, see H. nemoralis 1. Libera 46: 70; 47: 34-5 cavernula 46: 71 subcavernula 46: 71 liberiae, Helix 44: 68 lichen, Calyptraea 39: 9-11 Licina 55: 34 liebmanni cuatotolaiiamensis, Elliptio (Sphenonaias) 36: 36 205 Liebmanni INDEX TO liebmanni, Planorbis 38: 43; 40: 17; 47: 79 liebmanni, Tropicorbis 47: 16 lienardi, Mitra 36: 122 lienosa, Area 51: 49 lienosa, Micromya 37: 105, 141; 39: 92; 49: 81 lienosa concestator, Micromya 37: 140; 39: 92 ligamentina, Lampsilis 36: 54, 100; 43: 90-1; 44: 90 ligamentinus, Unio 37: 135; 38: 29; 49: 80, 84 ligata, Anculosa 58: 43 ligata, Melania 43: 10 ligata, Varicella 49: 26 ligatum, Trypanostoma 43: 10 ligatus, Ptychatractus 40: 21 ligera, Gastrodonta 39: 74, 80; 40: 8, 66; 43: 67; 44: 129; 51: 137 ligera, Ventridens 44: 17; 53: 86; 54: 142; 58: 63, 126-8 ligerus, Zonitoides 48: 58; 50: 120; 51: 56-9; 52: 96 lignaria, Euglandina, see E. aurata 1. lignaria aguinaldoi, Helicostyla 52: 92 lignaria atra, Helicostyla 52: 92, pi. 7 lignarium, Cymatium 37: 124 lignarius, Murex 37: 49 lignosa, Mopalia 45: 101; 46: 124 lignumvitae, Liguus, see L. solidus 1. ligulatus, Omphalius 36: 34 ligulatus, Tegula (Omphalius) 37: 43; 50: 49-50 Ligumia 52: 125 ellipsiformis 36: 100 iris 36: 100 latissima, see recta 1. nasuta 49: 80-1; 59: 110 recta 44: 47; 49: 81; 59: 110 recta latissima 36: 100; 40: 66; 44: 90; 54: 9 subrostrata 36: 100; 39: 92; 53: 137-8 Liguus 35: 20, 65, 68, 70, 72-3; 36: 112-5: 37: 36; 38: 56, 58-9; 40: 38-9; 42: 141, 143; 43: 18, 30-1, 107; 44: 32; 45: 3, 10, 12-5, 26-8, 98, 100, 106; 46: 1, 3, 91; 47: 68-9, 110, 121-2, 147; 48: 32, 69, 121-2; 49: 68, 89-90; 50: 1-3, 6-7, 34, 71, 141-2; 52: 46-8, 68, 93, 140; 53: 123; 54: 73, 141; 59: 118; 60: 43-6, 72 aurantius, see crenatus a. barbouri, see crenatus b. blainianus 45: 100; 48: 124; 52: 47 blainianus jaumei 45: 98-100 blainianus pilsbryi 48: 123-4, pi. 7 capensis 36: 113-4 -- see also crenatus c. caribaeus 49: pi. 3 castaneozonatus 35: 21; 36: 113-4; 60: 72 -- see also crenatus c. and fasciatus c. castaneozonatus lineolatus 60: 72 castaneozonatus miamiensis 60: 72 castaneozonatus roseatus 60: 72 castaneus 38: 60 -- see also testudineus c. cingulatus 36: 113-4 clenchi, see fasciatus c. crenatus 40: 90; 47: 69; 48: 69; 50: 71 -- see also fasciatus c. crenatus aurantius 43: 19-20 crenatus barbouri 43: 18-21 crenatus capensis 50: 7, 71 crenatus castaneozonatus 38: 60 crenatus farnumi 43: 19-21 crenatus floridanus 43: 20 crenatus lossmanicus 48: 69; 50: 71 crenatus luteus 43: 20 crenatus marmoratus 35: 20-1; 50: 6 deckerti, see fasciatus d. dohertyi, see solidus d dryas, see solidus d. eburneus 36: 113; 38: 60 farnumi, see crenatus f. fasciatus 38: 60; 40: 90; 42: 141; 43: 19; 44: 32; 45: 100, 106; 47: 69; 48: 69, 123; 60: 72 fasciatus caribaeus 49: 68 fasciatus castaneozonatus 35: 20; 46: 92, pi. 7; 48: 69, 122 fasciatus clenchi 47: 69 fasciatus crenatus 45: 100; 52: 47 fasciatus deckerti 48: 121-3, pi. 7 fasciatus hepaticus 40: 90 fasciatus lineolatus 50: 7 fasciatus mariae 48: 123, pi. 7 fasciatus murreus 40: 90 fasciatus nobilis 45: 98 fasciatus pictus 48: 125; 60: 43 fasciatus roseatus 35: 20-1; 45': 106; 50: 7, 140 fasciatus solidus 60: 45 fasciatus solisoccasus 47: 68, pi. 6; 48: 69 fasciatus walkeri 46: 91, pi. 7 fasciatus xanthus 48: 123 flammellus 48: 124-5 flammellus organensis 48: 125 flammellus russelli 48: 124, pi. 7 floridanus, see crenatus f. graphicus 60: 44-5 -- see also solidus go hepaticus, see fasciatus h. innominatus, see solidus i. jaumei, see blainianus j. lignumvitae, see solidus 1. lineolatus 35: 21; 36: 113-4 -- see also castaneozonatus 1. and fasciatus 1. livingstoni 36: 113; 38: 61 lossmanicus 36: 113 -- see also crenatus 1. luteus 36: 114 -- see also crenatus 1. mariae, see fasciatus m. marmoratus 36: 113-4; 38: 60 -- see also crenatus m. matecumbensis 36: 113-4 miamiensis 38: 60 -- see also castaneozonatus m. 206 THE NAUTILUS Limax mosieri 38: 60 murreus, see fasciatus m. nobilis, see fasciatus n. organensis, see flanimellus o. ornatus 38: 61 -- see also testudineus o, pictus 52: 47; 60: 43-5 -- see also fas- ciatus p. pilsbryi, see blainianus p. pseudopictus, see solidus p. roseatus 36: 113-4; 38: 61 -- see also castaneozonatus r. and fasciatus r. russelli, see flanimellus r. solidulus 35: 73; 60: 45 solidus 35: 67-8, 71, 73; 36: 114; 45: 106 -- see also fasciatus s. solidus dohertyi 47: 121, pi. 13 solidus dryas 45: 106 solidus graphicus 35: 71, 73; 45: 106 solidus innominatus 44: 32 solidus lignumvitae 44: 32 solidus pseudopictus 44: 32; 47: 122 solisoccasus, see fasciatus s. testudineus 38: 61 testudineus castaneus 60: 72 testudineus versicolor 60: 72 testudineus ornatus 60: 72 vacaensis 36: 114 versicolor 38: 61 -- see also testu- dineus V. vexillum 38: 61 walkeri, see fasciatus w. xanthus, see fasciatus x. Liliobankia 60: 108 lillianae, Lymnaea, see L. stagnalis I. lilljeborgii, Pisidium42: 23, 25-27; 52: 82-3, pi. 6; 59: 26 lill.ieborgii cristatum, Pisidium 42: 25 lilycashense, Sphaerium 57: 95 Lima 44: 126; 48: 3; 58: 53; 60: 27 (Mantellum) dehiscens 37: 41 hians 49: 117 hughi 37: 69-70 inflata 44: 126 lima 60: 19 pacifica 37: 122, 128; 52: 45 packardi 36: 142 pellucida 44: 126 scabra 38: 61 (Callolima) smithi 37: 69 tenera 44: 126 tetrica 46: 75; 52: 45 lima, Calliostoma 52: 44 lima, Choanopoma 42: 68 lima blandianum, Choanopoma 48: 65 lima, Helix 44: 140 lima, Lima 60: 19 lima, Ostrea 58: 53 lima, Philine 40: 22 lima, Thais (Nucella) 38: 25; 50: 47 Limacella 35: 78-80, 118 agrestis 35: 78, 80 concava 35: 79 flavus 35: 80 maximus 35: 78, 80 obliqua 35: 79-80 parma 35: 79, 118 unguiculus 35: 79 Limacellus 35: 118 limaciformis, Ischnochiton 52: 45 Limacina 42: 137 helicina 40: 22; 54: 4-5 lesueuri 47: 55 (Spiratella) retroversa 40: 22; 53: 36 limacina, Cleone 40: 22 limacina, Clione 54: 4-5 limacina, Nuclearia 58: 144 limans. Chiton 58: 101 limatula, Acmaea 37: 43; 50: 49; 51: 124; 56: 43 Limapontia nigra 36: 135 Limatula subauriculata 38: 24; 51: 101 limatula, Lucapina 52: 28 limatula, Lucapinella 39: 87 limatula, Nucula 51: 48 limatula, Pseudohyalina 45: 34 limatula acrior, Terebra 46: 117 limatula, Yoldia 35: 31; 58: 56 limatulum, Pisidium 58: 51 limatulus, Zonitoides 43: 43-4, 67 Limax 35: 77-8, 80, 118; 40: 64; 50: 135; 60: 26 agrestis 35: 78-80; 50: 133; 58: 16 arborum 52; 138; 54: 74 ater 35:' 78; 50: 132 campestris 58: 16 cellarius, see maximus c. cinereus 50: 133-4 cinerus-unicolor, see maximus c. colubrinus, see flavus c. concolor, see maximus c. flavus 35: 78, 134; 36: 105; 37: 27; 41: 142; 52: 97, 138; 57: 110-1 flavus colubrinus 37: 27 flavus maculatus 37: 27 flavus nigromaculatus 37: 27 gracilis 35: 79 hyperboreus 53: 130 keyserlingi 40: 72 krynickii, see maximus k. (Hydrolimax) laevis 35: 80 lombricoides 35: 79 maculatus, see flavus m. and maximus m. marginatus 52: 138; 57: 109-12 maximus 35: 78, 118; 37: 27; 43: 68; 47: 139; 51: 54, 63; 52: 96-7; 55: 15; 57: 109-11; 58: 25; 60: 99-100 maximus cellarius 37: 28 maximus cinereus-unicolor 40: 138 maximus concolor 40: 138 maximus krynickii 40: 138 maximus maculatus 37: 28 maximus tigris 37: 28 maximus umbrosus 37: 27 nigromaculatus, see flavus n. nudus 39: 13 rufus 35: 78, 80; 50: 132 207 Limax INDEX TO (Megapelta) semitectus 35: 79 tiara 37: 86 tigris, see maximus t. umbrosus, see maximus u. limbata, Hygromia 36: 67 limbatus, Spondylus 57: 5 limbifera, Eutudora 40: 89 limi, Viviparus, see V. contectoides 1. Limicolaria 44: 104; 50: 19 smithi 50: 18 Limnaea, see Lymnaea limnaeformis, Bulimus 44: 33 limnaeiformis, Campeloma 50: 127 limnaeiformis, Thaumastus 44: 33 limnaeiformis tenuis, Thaumastus 44: 33 Limneus, see Lymnaea limnophila, Bellamya 56: 126 Limnopomus 47: 72 limnothauma, Viviparus, see V. georgianus 1. Limopsis antillensis 49: 117 limosa, Amnicola 37: 30; 41: 20; 42: 55; 42: 115, 136; 43: 34; 44: 69; 45: 118; 47: 28; 48: 110; 52: 131; 54: 29; 57: 68-9; 58: 6; 60: 86-7 limosa parva, Amnicola 44: 46 limosa porata, Amnicola 36: 20, 25; 40: 50; 42: 18, 55, 97, 115; 43: 88; 50: 115; 59: 27, 29; 60: 86 limosa, Paludina 60: 105 Limosina 40: 30 limpida, Vitrina 40: 53-4, 58, 113; 42: 15, 135-6; 43: 81, 133; 48: 57-8; 50: 116 limula. Area 42: 84; 49: 133 limum, Campeloma 52: 130 Linatella wiegmanni 36: 51 lincina, Choanopoma 48: 64 lincina, Turbo 37: 91 Lindsleya 48: 62 lindsleyana, Fadyenia 48: 62 linearis, Spiraxis 52: 134; 53: 50, 92 lineata, Acmea 40: 32 lineata, Anatina 58: 59 lineata, Engina 57: 70 lineata. Helix 37: 49 lineata, Lepidochitona 46: 123 lineata, Littorina 38: 61 -- see also L. ziczac 1. lineata, Lucidella (Perenna) 48: 13 lineata, Lutraria 51: 48 neata, Mitra 45: 53 neata terplicata, Mitra 45: 54 neata, Plotia 37: 36 neata, Poteria, see P. jamaicensis 1. neata, Raeta 40: 100 neata, Scalaria 41: 15; 51: 49 neata, Succinea 50: 98-9 neata, Tellina 37: 55; 39: 84; 60: 19 neata, Tiara 45: 54 neata, Tonicolla 38: 28 neata, Vivipara 50: 137 neata, Voluta 45: 55 lineatuni, Camptoceras 44: 80 lineatum, Sphaerium 43: 93 -- see also S. sulcatum 1. lineatus, Conoelix 45: 55 lineatus, Cyclotus 56: 137 lineatus, Melampus 35: 88; 38: 51; 40: 126; 56: 143 lineatus, Planaxis 38: 61 lineolaris, Pecten 38: 113 lineolata, Cerithidea 56: 20 lineolata, Clathurella 45: 124 lineolata, Mangilia 45: 124 lineolata, Melania 56: 20-1 lineolata, Mitra 51: 91 lineolata, Neritina 45: 68 lineolata, Plagiola 36: 99 lineolata, Pleurotoma 45: 124 lineolata, Siphonaria 35: 135 lineolatus, Hemisinus 46: 93; 51: 40; 54: 67 lineolatus, Liguus 35: 21; 36: 113-4 -- see also L. casianeozonatus 1. and L. fasciatus L lineolatus, Strombus 56: 20 lineolatus, Unio 51: 94 Linga 52: 89 linguaeformis, Unio 37: 102 linguaeformis, Unio 37: 103 linguaeformis, Vaginulus (Sarasinula) 44: 136 lingualis, Lucina 58: 99 linguifera. Helix 38: 4-5 linguifera, Proserpina 47: 151; 48: 63 linguifera pulchra, Proserpina 48: 63 lingulata, Crepidula (Crepipatella) 37: 43; 38: 26; 50: 48 lingulata, Polygyra 48: 34 Linidiella 36: 84-5 linaei, Helix, see H. carocolla 1. Linnaeus 39: 34 lintea, Sulcocypraea 40: 18 linteatum, Epitonium (Cirsotrema) 54: 127; 56: 77; 58: 60 linteatum, Epitonium 56: pi. 7 Liocardium serratum 37: 55 Liocentrum 55: 105 Liocerithium thaanumi 36: 122 Lioconcha castrensis 60: 57 hieroglyphica 55: 2 lioconcha, cytherea 37: 3 Liocyma -- also as subgenus of Marcia schefferi 52: 111, pi. 8; 57: 142 viridis 52: 111 liocymatus, Pecten (Chlamys) 38: 119 Liomesus ooides 51: 125 Lioplacodes 44: 35 nucalis 44: 35 vcternus 44: 35 Lioplax 44: 35-6; 55: 83; 58: 5 choctawhatchensis, see pilsbryi c. cyclostomatiformis 49: 67; 58: 5 nebrascensis 50: 127 occidentalis, see subcarinata o. 208 THE NAUTILUS Littorina pilsbryi 49: 66 pilsbryi choctawhatchensis 49: 66 subcarinata 36: 20-1; 48: 143; 49: 67; 58: 5 subcarinata occidentalis 48: 143-4; 49: 67 Liotia 59: 53 acuticostata 37: 43 acuticostata bristolae 43: 72 acuticostata radiata 43: 72 bristolae, see acuticostata b. ednae 36: 122 fenestrata 37: 43 huesonica 40: 140 radiata 43: 72 -- see also acuticostata r. tortugana 40: 140 Liotina 59: 53 lioyi, Archicypraea 40: 18 lipara, Mitra 36: 122 liquabilis, Bulimulus, see B. dealbatus 1. lirata, Alectrion 49: 2 lirata, Anculosa 58: 42 lirata, Lucidella (Poenia) 41: 62 lirata, Partula 44: 141 lirata, Pedipes 50: 100 lirata, Poenia 57: 48 liratus, Chrysodomus 47: 102 liratus, Circulus 56: 144 liratus, Circulus (Lydiphnis) 56: 141 Liriola 59: 108 Lirobittium -- subgenus of Bittium Lirophora 49: 18 Lirularia -- subgenus of Margarites lirulatus, Margarites (Lirularia) 50: 49 Lissoacme 41: 96; 53: 112 listeri, Antigona 39: 83 listeri, Diadora 52: 28; 57: 32 listeri, Pedalion 49: 117 listeri, Venus 49: 119 literatum, Cerithium 53: 109 literatus millepunctatus, Conus 55: 2 Lithasia 35: 2; 41: 86; 43: 3, 6; 45: 62; 46: 38; 48: 101; 52: 127; 53: 76; 54: 65 -- subgenus of Anculosa angulata 35: 59 antiqua 58: 35 (Angitrema) armigera 35: 59; 53: 74-6; 56: 132 armigera stygia 53: 74-6; 56: 132 com pacta 41: 58 depygis, see obovata d. downiei 35: 59 duttoniana 35: 59 florentiana 41: 62 fuliginosa 35: 58-9; 41: 60-1 fusiformis 41: 58 (Angitrema) geniculata 35: 58-9; 53: 74-5; 56: 132 geniculata pinguis 56: 132 geniculata venusta 53: 74-5; 56: 132 nuclea 41: 58 obovata 35: 11, 59: 40: 8, 66; 41: 58, 60-1; 43: 3-7, 17; 46: 39-40; 48: 27, 101; 52: 128; 53: 74-6; 54: 11; 56:132 obovata depygis 53: 74-5; 56: 132 obovata pennsylvanica 45: 62 obovata sordida 52: 125; 53: 75-6; 56: 132 parva 35: 59 pennsylvanica, see obovata p. pinguis, see geniculata p. plicata 35: 134; 52: 128 showalterii 41: 58 sordida, see obovata s. stygia, see armigera s, venusta 35: 59 -- see also geniculata v. verrucosa 41: 59-60; 43: 6; 47: 151; 56: 132 vittata 41: 58 lithasiodes, Goniobasis 38: 44 lithodomus. Area 37: 126 Lithoglyphus fuchsi 37: 98 Lithophysema 40: 144 Litiopa 55: 128-30; 58: 70 bombix 55: 128-30 bombyx 55: 128-9 maculata 55: 128-30 melanostoma 55: 128-30; 58: 70 Lithoglyphus 58: 35 Lithophaga 46: 11; 54: 40-1; 55: 109-10; 56: 42 antillarum 54: 39-40 aristata 48: 4; 52: 45 attenuata 48: 4; 60: 89 bisulcata 54: 40; 58: 57 nigra 49: 117; 54: 39-40 plumula 52: 45: 55: 109-10; 56: 42 lithophaga, Bellamya 56: 126 litterata, Littorina 38: 61 litterata, Mitra 36: 122; 60: 56 litterata, Oliva 36: 11; 39: 85; 51: 48, 112 litteratorius, Conus 37: 49. litteratum, Cerithium 35: 121; 60: 60 littoralis, Littorina 46: 106; 50: 18 littoralis, Unio 53: 141 littorea, Littorina 35: 98; 39: 133; 41: 12, 15; 43: 64-5, 105; 49: 38-9; 53: 102; 55: 71; 56: 58, 106, 143; 57: 6-7, 69; 58: 21, 138-42; 59: 97; 60: 73-6 Littoridina 52: 88; 57: 48 frenata 60: 102 woodringi 48: 16 Littorina 35: 83, 119-20; 36: 51; 38: 56, 58; 40: 39, 77; 46: 106; 53: 36, 38, 68; 54: 2, 5; 56: 35; 57: 72; 58: 142; 60: 89 angulifera 35: 68; 37: 53, 55 aspersa 46: 45; 52: 45; 57: 31 carolinensis, see irrorata c. conspersa 46: 45; 52: 45 divaricata 38: 26 emeryi 40: 39 feejeensis 35: 84 209 Littorina INDEX TO grandis 47: 102 guttata 40: 39 irrorata 43: 35, 65; 54: 20; 56: 140-1; 58: 61 irrorata carolinensis 49: 136, 139 lineata 38: 61 -- see also ziczac 1. litterata 38: 61 littoralis 46: 106; 50: 18 littorea 35: 98; 39: 133; 41: 12, 15; 43: 64-5, 105; 49: 38-9; 53: 102; 55: 71; 56: 58, 106, 143; 57: 6-7, 69; 58: 21, 138-42; 59: 97; 60: 73-6 mandshurica 40: 32 mespillum 38: 61; 51: 113 minima 46: 119; 51: 113; 53: 68 obtusata 35: 98; 46: 106; 56: 59; 58: 21, 137-9, 141 obtusata palliata 38: 50 palliata 35: 98; 39: 133; 43: 65; 46: 106; 56: 59, 143 -- see also obtusata p. pedroana 38: 16 picta 35: 83-4 pinctada 55: 2 pintado 35: 83-4; 58: 122 pittsburgensis 36: 140 planaxis 36: 18; 37: 42; 50: 48 pulchra 45: 80 rudis 35: 98; 38: 26, 50; 39: 39, 133; 43: 65; 46: 106; 56: 58, 106 rudis tenebrosa 38: 50 saxatilis 46: 106; 54: 2, 4; 56: 58, 143; 58: 20-1, 137-41; 59: 97 scabra 37: 3; 52: 118; 60: 55 (Melarhaphe) scutulata 36: 34; 37: 42; 38: 26; 50: 48; 53: 22 (Littorivaga) sitchana 38: 26; 47: 102; 49: 2 tenebrosa 39: 40 -- see also rudis t. undulata 60: 55 varia 36: 51 ziczac 35: 121; 38: 61 ziczac lineatus 35: 121 littorina, Anculosa 35: 11-2 Littorivaga -- subgenus of Littorina lituellus, Spiroglyphus 37: 42; 50: 48; 51: 103 lituus, Helix 49: 67 lituspalmarum, Teinostoma 59: 2, 7, pi. 2; 60: 18 liuiana, Mekongia 56: 129 livesayanum, Stoastoma 48: 63 livescens, Columbella 55: 2 livescens, Goniobasis 35: 3; 38: 43-4, 144; 43: 70; 44: 46, 56-7, 60, 62-5; 45: 64; 46: 36; 47: 35, 49; 50: 83-4; 52: 128; 54: 9; 56: 33; 59: 110, 112 livescens correcta, Goniobasis 44: 115 livida, Melania 41: 61 livida, Sayella 48: 129, pi. 7; 53: 44 livida, Urocoptis 44: 15 livida atkinsi, Urocoptis 44: 15, pi. 2 livida barbouri, Urocoptis 44: 15, pi. 2 livida, Voluta 37: 49 lividum, Toxolasma 37: 100-1 lividus, Colus (Aulacofusus) 40: 21 lividus, Conus 35: 84; 36: 121; 55: 2 lividus. Macron 37: 41 livingstoni, Liguus 36: 113; 38: 61 Livona 35: 120; 38: 57 pica 35: 119, 121; 38: 61 Lobiger 55: 37, 39-40, 71 nevilli 55: 39-40 pilsbryi 55: 40, pi. 3 serradifalci 55: 39-40 souverbii 55: 39-40 viridis 55: 39-40 lobium, Basiliochiton 39: 105 locklini, Ostrea 59: 39-41 loessensis. Vertigo 44: 22 -- see also V. gouldii 1. lohri, Pecten (Patinopecten) 41: 93-4; 50: 57 Loligo 44: 107 opalescens 60: 91 pealei 56: 61 pealii 58: 62 lombardi, Allogona 58: 34 lombricoides, Limax 35: 79 longa, Rimula 57: 38-9, pi. 7 Longchaeus -- subgenus of Pyramidella longicaudata, Coryphella 36: 91 longicymba. Chiton 37: 72 longicymba, Stenochiton 39: 36 longidens, Cerion 57: 34 longini, Cardita (Cyclocardia) 58: 118-9 longinqua, Amnicola 47: 11; 48: 16; 50: 42; 54: 118 longinqua, Paludestrina 42: 121; 44: 109- 10, 114; 47: 11; 54: 29; 56: 55 longinus, Anodon 36: 8 longinus, Mycetopoda 36: 9 longipes, Lepton 60: 71 longipilus, Lagochilus 55: 43 longirostris, Cavolina 58: 62 longirostris, Cavolinia 47: 54-5 longispina, Spondylus 51: 38 longispinum, Astraea 38: 60; 50: 30 longispinum, Astralium 39: 86 longispira, Cipangopaludina 56: 127 longispira, Oliva, see O. ispidula 1. longitudinalis, Spondylus 51: 39 Lophocercus 56: 81 Lophochiton 39: 105 Lora 51: 115-8; 54: 3, 5 beckii 38: 25; 51: 122 bicarinata 40: 21 bicarinata violacea 40: 22 cancellata 40: 21 cancellata canadensis 40: 21 chiachiana 38: 25 decussata 35: 88; 40: 21 ecarinata, see scalaris e. exarata 40: 21 harpularia 38: 25; 40: 21 210 THE NAUTILUS Lucina impressa 40: 21 incisula 40: 21 morchi 38: 25; 51: 104 nazanensis 51: 122 nobilis 40: 21 pingelii 40: 21 pleurotoniaria 40: 21 quadra 38: 25 regulus 44: 93 rosea 38: 25 rugulata 40: 21 scalaris ecarinata 40: 21 solida 38: 25 violacea, see bicarinata v. yamanii 50: 91 lorata, Achatinella 38: 78 lorata alba, Achatinella 38: 78 lordi, Physa 38: 13 lordi, Psephidia 37: 41; 38: 25; 53: 22 lorentzianus, Borus 39: 77-8, pi. 4 -- see also B. oblongus 1. lorenzoensis, Trophon 55: 121, 123, pi. 8 Lorica39: 36 lorica, Calyptraea 39: 9 loricata, Polygyra 35: 37; 39: 31; 47: 13; 50: 105 loricata lowei, Polygyra 39: 31 loricata minor, Polygyra 39: 31 loricata nortensis, Polygyra 47: 13-4, 112 loricata querceti, Polygyra 39: 31 Loricella 39: 36 Loripes 36: 110; 38: 56 Loripinus chrysostoma 54: 21 schrammi 51: 65; 58: 58 Lottia gigantea 50: 49 lossmanicus, Liguus 36: 113 -- see also L. crenatus 1. loudenensis, lo 38: 138 louisvillensis, Goniobasis 35: 2; 41: 61; 43: 6-7 loveni, Conus 41: 44-5 loveni, Pisidium 42: 26-7 loveridgei, Euaethiops 44: 104 loweana, Mitra 45: 29 loweana, Monadenia, see M. mormonum 1, lowei, Euglandina 44: 83, pi. 5 lowei. Helminthoglypta 43: 114 -- see also H. cuyamacensis 1. lowei, Lepidochitona 56: 43 lowei, Mitra 45: 29 lowei, Pleurodonte (Caracolus) 42: 78, pi. 4 lowei, Polygyra, see P. loricata 1. lowei, Pseudocampylaea 35: 102 lowei minor, Pseudocampylaea 35: 102 lowei, Typhis 45: 72; 53: 66, pi. 8 lowei, Urocoptis 40: 73-4 loxahatchiensis, Cypraea, see C. gabbiana 1. loxeoides, Pecten 49: 29 loxodon, Cepolis 56: 82 loxoides, Pecten 49: 27, 29 lubanensis, Helicostyla, see H. cincinniformis 1. lubrica, Cochlicopa 35: 36; 36: 38; 37: 79; 40: 47, 58, 113; 41: 20, 42-3; 42: 15, 124, 135; 43: 43-4, 53, 55, 57, 61, 81, 118, 134; 44: 45, 71, 129; 45: 72; 47: 8, 139; 48: 59, 82; 50: 117, 121; 51: 57, 63, 140; 52: 96; 53: 132-3; 54: 31; 55: 14; 56: 53; 58: 79; 59: 68, 91; 60: 5, 72, 100 lubrica appalachicola, Cochlicopa 48: 82 lubrica morseana, Cochlicopa 48: 59 lubrica sinistrorsum, Cochlicopa 37: 71 Lucapina 53: 38; 57: 72 cancellata 52: 28 limatula 52: 28 Lucapinella 57: 72 inaequalis 52: 45 limatula 39: 87 Lucerna 44: 68, 138 -- subgenus of Pleurodonte lucerna, Pleurodonte (Lucerna) 49: 54 lucerna acuta, Pleurodonte 49: 27 Lucernella 44: 138; 49: 103 hippocastaneum 44: 138 lucida, Anculosa, see A. taeniata 1. lucida, Polita 41: 32 lucida, Vitrea 35: 40 Lucidella 40: 35; 41: 23, 62; 48: 14 (Poenia) adamsiana 48: 9-10, 13 (Poenia) adamsiana sublaevis 48: 9-10, 13, pi. 2 aureola 48: 12 aureola montegoensis 48: 13 coronula 48: 13 (Poenia) depressa 48: 13 (Poenia) depressa valida 48: 13 foxi 48: 13 granulosa 48: 13 granulosa undulata 48: 13 inaequalis 48: 13 interrupta 48: 13 (Perenna) lineata 48: 13 (Poenia) lirata 41: 62 montegoensis, see aureola m. persculpta 48: 13-4 sublaevis, see adamsiana s. tantilla 37: 69 undulata, see granulosa u. valida, see depressa v. lucidum, Drepanotrema 47: 68; 54: 96-7; 56: 8 lucidum, Pisidium 37: 19 lucidus, Conus 53: 40 Lucina 38: 56, 58; 45: 108; 49: 87; 52: 88-9; 60: 27 (Here) adansonii 52: 88-9 (Lucinoma) atlantis 49: 87. pL 5 aurantia 52: 88-9 blakeana 49: 87 chrysostoma 35: 121; 39: 83; 49: 133 crenella 58: 58 dentata 41: 15; 42: 85 211 Lucina INDEX TO divaricata 42: 85 edentula 38: 61 filosa 56: 60 jamaicensis 38: 56; 39: 83 lingualis 58: 99 pectinata 54: 21; 60: 19 pennsylvanica 45: 108; 52: 88-9 radians 49: 117-8; 58: 58 radiata 49: 117-8 sombrerensis 52: 88-9 undata 58: 105 undatoides 58: 105 Lucinisca -- also as subgenus of Phacoides nuttallii 36: 34; 53: 22 Lucinoma -- subgenus of Lucina lucorum, Helix 37: 49 luctuosa, Terebra 45: 75; 52: 46 lugubre, Mitra 36: 122 lugubris, Acanthina 38: 22 lugubris, Cantharus 54: 46-7 lugubris, Drupa 56: 77 lugubris, Oliva, see O. episcopalis 1. lugubris, Unio 51: 92 luhuanus, Strombus 37: 49; 60: 55 lumbalis, Succinea 38: 82 lunata, Alia 35: 88 lunata, Ammonitella 46: 69 lunata, Astyris 36: 11 lunata, Columbella 35: 88; 38: 50 lunata, Mitrella 56: 143; 58: 61; 60: 75 lunicula, Patella 37: Luntia, insignis 57: lunula, Cyphoxis 42: 113 lunulata parva, Crassinella 46: 123 lunulata. Bulla 37: 49 lupanaria, Pitar 52: 46 lupanaria, Pitaria 37: 129 Luria controversa 57: 26 Isabella antriceps 57: 26 Isabella atriceps 57: 26 lurida, Area (Barbatia) 37: 126 lurida, Chaetopleura 52: 44 lurida, Lampsilis, see L. ventricosa 1. lurida, Ostrea 36: 34; 42: 3; 43: 50; 58: 99 lurida, Tritonalia 44: 93; 50: 47; 51: 101 lurida aspera, Tritonalia 50: 47 lurida niunda, Tritonalia 50: 47 lurida rotunda, Tritonalia 50: 47 lustrica, Amnicola 36: 25; 47: 12; 48: 110; 57: 68; 60: 85-7 lustrica, Amnicola (Marstonia) 60: 105 lustrica gelida, Amnicola 35: 22 lustrica, Paludina 57: 69; 60: 84-5, 87, 105 lustrica, Pomatiopsis 57: 69 lutarius, Megomphix 45: 82, 86-7, pi. 5 lutea, Acanthodoris 39: 50, 60, 63, 101-2, pis. 2. 3 lutea, Auris, see A. aurissciuri 1. lutea, Cypraea 37. 49 lutea, Gena 60: 55 lutea, Helix, see H. hortensis lutea, Nerita 37: 49 lutea, Tellina 47: 102 Lutella 54: 65-6 luteola, Corbula 36: 34 luteola, Lampsilis 36: 101; 42: 53; 43: 90-1; 44: 90; 48: 100 luteola rosacea, Lampsilis 35: 131; 36: 24 luteola, Philbertia 36: 122 luteola, Succinea 38: 42, 62; 47: 16, 21 luteolus, Unio 53: 102 luteopictus, Fusinus 37: 41; 54: 46 luteostoma, Nassa 46: 51 lutescens, Megalobulimus 58: 29 lutescens, Strophocheilus 41: 96 luteus, Liguus 36: 114 -- see also L. crenatus 1. luteus, Melampus 60: 56 luticola, Retusa 55: 122 Lutraria 44: 69 capax 38: 102 lineata 51: 48 maxima 44: 69; 45: 32-3 undulata 38: 98-9 lutzi, Gundlachia 39: 32 luzonica, Ampullaria 45: 36 lychnuchus. Helix 44: 138; 50: 140 Lydiphnis -- also as subgenus of Circulus (Circulus) trilix 52: 28 lymani, Pisania (Tritonidea) 49: 138-9; 50: 20 Lymnaea 36: 125. 140; 37: 25, 34, 80-1; 38: 74, 111; 39: 24, 35, 116, 143; 40: 76, 107-8, 141; 41: 23, 40, 75, 141; 42: 106; 43: 77, 79, 82, 87; 44: 38, 78, pi. 6; 46: 36; 47: 3, 8, 122; 48: 106; 49: 69; 50: 133; 51: 72, 144; 52: 35, 137; 53: 103; 54: 6; 55: 18, 69, 105; 56: 131; 57: 9, 55, 132; 58: 11, 69, 115; 60: 35 aberrans 52: 58 -- see also ovata a. abyssicola 57: 8 acuminata 39: 143 adamsi, see catascopium a. (Pseudosuccinea) aperta 40: 35 apicina 39: 125; 44: 76 appressa 50: 139 -- see also stagnalis a. arctica 47: 9 -- see also vahlii a. atrata 52: 57 attenuata 53: 139 (Radix) auricularia 37: 34; 38: 125-6; 39: 71; 41: 41, 94; 43: 144; 44: 143; 45: 141; 46: 101; 49: 68; 50: 134; 55: 18-9, 105-6; 57: 9 (Pseudosuccinea) barberi 40: 35 binneyi 41: 24; 44: 76; 47: 2-3, 122 blatchleyi 40: 60 bulimoides 41: 119 (Galba) bulimoides 45: 35, 140; 54: 128, 130 bulimoides cassi 48: 33 (Stagnicola) bulimoides cassi 54: 30, 32 bulimoides cockerelli 37: 81 212 THE NAUTILUS Lymnaea (Stagnicola) bulimoides cockerelli 45: 140; 53: 78 (Galba) bulimoides techella 45: 35 canadensis, see eniarginata c. (Galba) caperata 36: 25; 40: 59; 41: 20; 42: 17, 19; 43: 82; 45: 140; 47: 3; 53: 78, 134-5; 54: 6 caperata warthini 36: 125; 47: 1 cassi, see bulimoides c. catascopium 36: 23-4; 37: 25; 38: 11; 40: 60; 42: 56, 115; 51: 93; 54: 8 catascopium adamsi 36: 23 cockerelli, see bulimoides c. (Pseudosuccinea) columella 37: 34; 45: 58; 46: 139; 54: 6; 56: 132; 58: 11 contracta 54: 121-2; 58: 66; 60: 35 cubensis 41: 120 dalli 40: 55, 59; 48: 114 danielsi 36: 23-4 decampi, see obrussa d. decidiosus 51: 93 elodes 37: 24; 46: 139; 51: 49; 53: 138-9 emarginata 36: 107; 40: 60; 41: 24; 42: 17, 56; 47: 33; 51: 93; 54: 121-2 emarginata angulata 39: 125; 57: 8-9 emarginata canadensis 39: 125; 40: 55 exigua 52: 127 -- see also obrussa e. exilis 37: 24; 53: 135 expansa 54: 65 (Galba) ferruginea 45: 35; 48: 47 fusca, see palustris f. haydeni 47: 122 -- see also palustris h. hedleyi 40: 122; 41: 23-4 hemphilliana 37: 23-4 hendersoni 45: 140 humilis 39: 80; 58: 11 humilis modicella 40: 8, 60, 66; 54: 6; 56: 133; 58: 11 (Polyrhytis) kingi 46: 98 kirklandiana 53: 135 lagotis 50: 12 lanceata 40: 69; 42: 16; 53: 134-5 lanceolata 37: 24 laurentiana 40: 35 (Stagnicola) leai 42: 121 lillianae, see stagnalis 1. mazamae 47: 33, pi. 6 (Bulimnea) megasoma 39: 125; 40: 136-7; 42: 16, 18; 43: 82; 50: 139; 53: 102-3; 54: 7 mighelsi 47: 33 minnetonkensis 36: 23-5 modicella 43: 88 -- see also humilis m. (Stagnicola) montana 47: 3; 49: 64 nashotahensis 36: 23 natalensis 41: 141; 52: 142 nuttalliana, see palustris n. (Fossaria) obrussa 42: 121; 43: 60; 45: 140; 47: 79; 48: 47; 52: 15, 127; 54: 6: 56: 132 (Galba) obrussa decampi 36: 25; 38: 11; 40: 55; 41: 85; 42: 17 obrussa exigua 39: 125; 40: 60; 42: 17 obrussa strengi 38: 11 occidentalis, see stagnalis o. ovata 41: 41; 50: 133; 52: 58; 55: 19, 106 ovata aberrans 55: 19 palustris 37: 25, 78; 38: 11, 93; 40: 60, 114; 41: 20; 42: 16, 19, 56, 129- 30; 43: 134; 44: 109; 46: 101; 47: 1- 2, 122; 52: 125; 53: 78, 134, 139-40; 54: 7; 55: 18 palustris fusca 52: 59 palustris haydeni 47: 2 (Stagnicola) palustris nuttalliana 42: 121; 47: 2, 122, 124; 48: 47; 51: 72; 53: 139 palustris terebra 52: 58 (Stagnicola) palustris wyomingensis 47: 3, 124; 48: 106 (Galba) parva 38: 43; 40: 59; 48: 114 parva sterkii 40: 55, 59 perampla, see stagnalis p. pereger 37: 71; 55: 19, 106 -- see also peregra peregra 39: 21-2; 42: 144; 43: 36; 52: 136-7 -- see also pereger peregra geisericola 38: 92-3 (Fossaria) perplexa 45: 131-2; 47: 9 pervia 52: 57 pingelii, see vahlii p. platystoma 54: 65 proxima 44: 110; 48: 47 reflexa 37: 23-4; 51: 49; 54: 7 reflexa hemphilliana 37: 23 (Physa) rivalis 44: 106 rustica 47: 9 sanctaemariae, see stagnalis s. serrata 49: 129 solida 44: 76 sordidus 53: 138-9 sorensis, see stagnalis s, stagnalis 38: 11; 40: 137; 41: 41; 42: 97; 46: 137; 50: 115, 134; 51: 39; 53: 78, 134; 54: 143-4; 55: 19, 71, 105-6; 57: 8-9, 45-6, 52, 54, 58; 58: 79 stagnalis appressa 36: 25; 38: 11; 39: 125; 40: 55, 59; 41: 103; 42: 16, 129; 43: 82; 44: 110; 45: 140; 48: 109; 53: 78; 54: 7; 57: 9-10, 13, 52, 54-5, 57 stagnalis jugularis 44: 110. 113; 45: 140; 47: 3; 51: 131 stagnalis lillianae 42: 16, 97; 50: 115; 57: 54 stagnalis occidentalis 41: 76; 55: 18, 105 stagnalis perampla 57: 9 stagnalis sanctaemariae 39: 125; 57: 54 stagnalis sorensis 52: 58 213 Lymnaea INDEX TO stagnalis wasatchensis 40: 76; 42: 120-1; 44: 113; 45: 140; 50: 115 stagnicola 57: 8 sterkii, see parva s. strengi, see obrussa s. subulatus 53: 139 sumassi 41: 24 techella 40: 17 -- see also buli- moides t. terebra,see palustris t. traskii 40: 55; 41: 24, 119; 50: 115 truncatula 41: 41; 45: 131-2; 50: 10 umbilicata 40: 59 umbrosa 37: 24; 51: 49 utahensis 44: 77-9, 109-12; 45, pi. 11; 46: 97 vahlii 38: 11; 39: 32, 125; 40: 60; 42: 16; 43: 79; 55: 19 vahlii arctica 40: 60 vahlii pingelii 40: 60 vehlii, see vahlii vulgaris 50: 133 warthini, see caperata w. wasatchensis, see stagnalis w. (Galba) winnebagoensis 36: 22-4 v.'yomingensis 47: 2, 122 -- see also palustris w. zebra 37: 24 Lymnaeus, see Lymnaea lymneiformis, Streptostyla 55: 59 Lyncina 57: 24 lynx, Cypraea 50: 79; 51: 3; 52: 5-6, 103- 4; 55: 2; 57: 83-5; 58: 132, 144; 60: 55 Lyogurus pupoidea 37: 30 -- see also Lyogyrus p. Lyogyrus dalli 47: 149 granum 47: 149 pupoides 47: 149 -- see also Lyogurus p. vanhyningi 47: 149, pL 13 lyonii, Pleurocera 41: 58 lyonii, Trypanostoma 41: 58 Lyonsia 53: 137 arenosa 40: 23 floridana 37: 54 gouldi 37: 41 hyalina 36: 60; 38: 49; 56: 61, 143; 58: 57 saxicola 43: 51 Lyonsiella magnifica 37: 31 lyrata, Columbella 45: 52 lyrata, Cypricardia 49: 2 lyrata, Eutrochatella, see E. regina 1. lyrata, Geomelania 56: 4 Lyria 44: 26 Lyria (Enaeta) cumingii 46: 110, 115 Lyroconus 41: 144; 54: 57 -- subgenus of Thysanophora Lyrodes 52: 87-8; 57: 68; 59: 19; 60: 104 coronatus nicaraguanus 59: 19 crystallina 52: 87 guaraniticus 52: 87 jamaicensis 52: 87 nicaraguanus, see coronatus n. parvula 52: 88 spinosa 52: 87 Lyropecten 49: 28 -- also as subgenus of Pecten antillarum 56: 110 Lyropupa 36: 64 Lysinoe 38: 38; 56: 82 ghiesbreghti 58: 117 humboldtiana 40: 65 lyttonensis. To 38: 142 maackii, Eulota 38: 62-4 maackii albida, Eulota 38: 65 maackii optima, Eulota 38: 64-5 maackii. Helix 38: 63 maackii depressior, Helix 38: 63 maackii elatior. Helix 38: 63 macasi. Helix 57: 120 macclintocki, Discus 53: 123; 55: 21 macclintocki angulatus. Discus 53: 143; 55: 21 macclintocki, Gonyodiscus 41: 133-4; 44: 22 macclintocki angulata, Gonyodiscus 41: 134 macella, Turris (Surcula) 37: 108 macerophylla, Chama 39: 83; 51: 75-6, 143; 56: 117, 119, 123, pi. 13 macgillivrayi, Ischnochiton 58: 101 macgillivrayi, Neritina 50: 45 macgintyi, Fasciolaria, see F. scalarina m. macgintyi, Morum 51: 67 macgintyi, Murex 51: 88 macgintyi, Tritonalia 53: 84 macglameriana, Goniobasis 58: 46 Machaeroplax varicosus 38: 27 macilenta, Alcadia 48: 12 macilenta, Turris 37: 108 macmurrayi, Zaphysema 49: 54 macneilli, Anguispira, see A. alternata m. Macoma 41: 16-7; 44: 92; 54: 4, 5 arnheimi, see inquinata a. aurora 37: 129 balthica 36: 60, 107; 38: 3, 25, 50; 40: 25, 77; 43: 50; 44: 92; 51: 9; 54: 2; 56: 61, 106, 144; 58: 22, 137-40 baltica 41: 15 (Cydippina) brevifrons 39: 84; 52: 28 calcarea 35: 32; 40: 25; 51: 9, 54: 3 constricta 37: 54; 43: 35; 54: 21; 58: 59 derelicta 36: 59 incongrua 44: 92 inflatula 43: 50 inquinata 47: 102; 49: 2 inquinata arnheimi 43: 50; 51: 125 middendorffii 47: 102 nasuta 36: 33; 38: 25, 70; 43: 50; 44: 92-3 (Psammacoma) platensis 36: 59 quadrans 51 : 125 sitkana 38: 25 tageliformis 54: 21 tenta 36: 60; 45: 111; 57: 31, 59 214 THE NAUTILUS Magellanicus wilcoxi 43: 24, pi. 1 yoldiforniis 44: 92; 51; 125 macouni, Trophon 45: 66 Macrocallista aurantiaca 37: 129 aurantica 52: 45 chishimana 37: 26 gigantea 37: 55 maculata 37: 55: 39: 83; 49: 118 nimbosa 58: 58; 60: 33 pannosa 37: 129 squalida 37: 129; 46: 75, 114; 52: 45 Macroceranius 35: 121; 49: 142 gossei 50: 139 macrochisma, Monia 38: 24 macrochisma, Pododesmus (Monia) 47: 102; 56: 42 Macrochlamys 57: 31 cerasina 45: 30 ceratodes 42: 67 hainesi 43: 53 indica 57: 31 minima 57: 133 (Pseudhelicarion) virescens 42: 67 Macrocyclis hemphilli 43: 95-6, 99-100; 45; 86-7 macrodon, Plagioptycha 56: 36 Macrodontes 60; 57-8 odontostomus 60: 58-9 sowerbyi 60; 58 macroniphala, Tornatellides 38: 79, 83 Macron lividus 37: 41 macrophylla, Chama 38: 61 macroschisma, Pododesmus 42: 67; 43: 50, 104, 138 Macrospira 44: 140 aperta 44; 140 octona 44; 140 macrospirum, Campeloma 44: 35 macrostomum, Helisoma, see H. trivolvis m. Mactra 38: 98-102; 41; 16-7; 43: 24; 45: 74; 47: 47; 48; 119; 49: 84; 60: 26 alaskana 38: 99 alata 48: 105; 60: 19 alata subulata 48: 105 (Mactrotoma) augusta 37: 130; 38; 99 beali 43: 24, pi. 1 (Mactrotoma) californica 37: 130; 38: 98-101 catilliformis 38: 99 (Mactrella) clisea 37: 130; 48: 105 deshayesii 38: 100 dolabriformis 38: 99-100 (Mactrella) elegans 37: 130 (Mactrella) exoleta 37: 130; 38: 98, 100; 52: 45 falcata 38: 98-9, 101 fragilis 38: 100; 54: 21; 58: 59 hemphilli 38: 99 lateralis 41: 15-6; 43: 132; 56: 60 nasuta 38: 98, 100, 102 planulata 38: 98, 101 similis 51: 65 solidissima 41: 10, 15 subalata, see alata s. (Spisula) subtruncata 58: 24 thracioides 48: 119-21, pi. 6 (Mactrotoma) velata 37: 130 ventricosa 38: 100 Mactrella 48: 105, 119-20 -- subgenus of Mactra Mactrinula 48: 119-20 mactroides, Tivela 60: 19 Mactrotoma -- subgenus of Mactra maculata, Cistula 37: 93 maculata, Glycymeris 37: 127; 48: 4 maculata, Litiopa 55: 128-30 maculata, Macrocallista 37: 55; 39: 83; 49: 118 maculata, Oreohelix 35: 14 maculata, Pomacea 41: 63-4 maculata, Terebra 36: 123; 37: 63; 55: 2 maculata, Tudora 37: 92 maculatum, Sinum 58: 60 maculatus, Ariolimax, see A. colum- bianus m. maculatus, Krynickillus 35: 79 maculatus, Limax, see L. flavus m. and L. maximus m. maculatus, Sigaretus 51: 49, 92 maculatus, Strombus 35: 84; 36: 123; 55: 2 maculatus, Trochus 60: 55 maculatus, Voluta 37; 49 maculifera, Cypraea 57: 25 maculifera, Mauritia 57: 25 Maculopeplum 35: 136 maculosa, Iselica 55: 122 maculostriatus, Trochus 46: 120 maculosum, Cerithium 37: 125; 46: 45 Maculotriton bracteatus 58: 122 madagascarensis, Cassis 49: 133; 53: 38; 58: 61 madagascarensis spinella. Cassis 58: 107 madagascariensis, Cassis 51: 34: 58: 37 madagascariensis, Cypraea 36: 121; 50: 52, 79; 55: 2 madacassina, Theodoxus 50: 112 madaziniana, Achatina 44: 104 maderensis, Chascax 52: 86 maderensis. Helix 35: 12 maderensis, Latirus 52: 85 madreporarum, Coralliophila 45: 77; 46: 112 madreporarum, Rhizocheilus 36: 122: 55: 2 magdalenensis, Acteocina 42: 3 magdalenensis subobsoleta, Maugerella 58: 101 magdalinae, Helicina 48: 54 magellanica, Calyptraea 39: 9 magellanica, Ostrea 38: 112 magellanicus, Helix 35: 49 magellanicus, Mytilus 56: 32 215 Magellanicus INDEX TO magellanicus, Radiodiscus 52: 116 magellanicus, Pecten 35: 30-1; 38: 32-3; 44: 99; 50: 56 mageni, Rhachis 51: 35 magenl colorata, Rhachis 51: 35 mageni monozona, Rhachis 51: 35 mageni punctata, Rhachis 51: 35 mageni unicolor, Rhachis 51: 35 Magilus antiquus 44: 28 magister, Stagnicola 47: 124 -- see also S. palustris m. magna, CarocoUa 59: 117 magna, Neptunea (Sulcosipho) 47: 93 magna, Urocoptis 49: 21 -- see also U. ambigua m. magnaciana, Mekongia 56: 129 magnalacustris, Physella 44: 46 magnifica, Anodonta 55: 20 magnifica, Eupolymnia 49: 60 magnifica, Lyonsiella 37: 31 magnifica, Stagnicola, see S. emarginata m. magnifica, Tulotoma 58: 4 magnificum, Cardium 37: 128 magnificum, Carychium 36: 141 magnificus, Planorbis 42: 116 magnificus. Turbo 37: 121, 126 magnifumosa, Polygyra 46: 58-9 -- see also P. edwardsi m. magnitesta, Choanopoma, see C. red- fieldianum m. magnus, Chrysodomus (Ancistrolepis) 47: 93 mahogani, Conus 45: 79; 57: 4 mahoganyi, Chondropoma, see C. irrad- ians m. mailliardi, Helminthoglypta, see H., arrosa m. mailliardi, Parapholyx 38: 66; 55: 16-7 mainensis, Aporrhais, see A. occidentalis m major, Alcadia 48: 12 major, Aperostoma, see A. translucida m. major, Columbella 37: 124; 52: 44 major, Euglandina, see E. delicatula m. major, Helicolimax 42: 136 major, Pleurodonte, see P. auricoma m. major, Succinea, see S. avara m. major, Tachyrhynchus, see T. erosus m. major, Triodopsis, see T. albolabris m. major, Vitrina 42: 138-9 majuscula, Chloritis (Sulcobasis) 47: 23-4 malaspinae, Cetoconcha 58: 67 Malea ringens 37: 124; 43: 137; 52: 45 malespinae, Cetoconcha 58: 67 Malino 35: 79 malleata, Helicostyla, see H., decorata m. malleata, Paludina 56: 127 malleata, Physa 47: 123-4 malleatus, Viviparus 36: 105; 42: 127-29, 141-2; 46: 100-1; 48: 33; 54: 69; 55: 102, 117 malonei, Cerion 51: 19-22, pi. 3 malonei, Cerion (Strophiops) 51: 20 malonei, Hemphillia 39: 143 maltbiana. Trivia 56: 16, pi. 4 malum, Cassis 52: 74 mamilla, Polinices 55: 2; 60: 55 mamilla, Polynices 36: 122 mamillana, Nerita 37: 49 mamillaris, Calyptraea 37: 125; 39: 9-11; 52: 44 mamillaris, Galerus 39: 10 mamillata, Alvania 53: 29 mamoreensis, Leptinaria 39: 144 manaosensis, Succinea 39: 2, 79, pi. 4 manchionealensis, Urocoptis, see U. lata m. mandannaensis, Pecten 50: 58 mandevillense, Spirostemma 49: 57 mandevillensis. Varicella 49: 22, 25; 55: 26-7 Mandolina 40: 18 mandshurica, Littorina 40: 32 Mangelia 45: 124-5; 55: 122 -- see also Mangilia abreojosensis 55: 122 albivestis 47: 146 angulata 58: 99 cerea 58: 99 cerina 36: 11; 56: 141; 58: 62 fredbakeri 45: 124, pi. 11 gemmulosa 58: 99 hamata 58: 99 interfossa 58: 99 multilineolata 45: 124 nitens, see variegata n. tabulata 58: 100 (Bela) variegata 50: 47, 49; 58: 100 variegata nitens 58: 100 Mangilia -- see also Mangelia hamata 44: 93 lineolata 45: 124 pulchrior 37: 41 pura 47: 146 stellata 37: 54 striosa 36: 18 manhattensis. Gemma 53: 19 mani, Megalomastoma 38: 61 mani decurrens, Megalomastoma 40: 90 manillensis, Corbicula 44: 105 mansfieldi, Muricidea 53: 83, pi. 10 mansuyi, Margarya, see M, melanoides m. mantaensis, Tellina (Eurytellina) 56: 80, pi. 8 Mantellum 44: 126 -- subgenus of Lima manti, Daphnobela 36: 122 mantichora, Oliva, see O. emicator m. Manupecten 50: 25-6 mappa, Cypraea 52: 6, 104; 55: 2; 57: 83 maracaibensis, Orthalicus 60: 106 maracaibensis, Oxystyla 59: 30-1 maracaibensis imitator, Oxystyla 59: 30 Maravignia 40: 134 marci, Physa 38: 15 marci, Pisidium 37: 22; 42: 26-7 216 THE NAUTILUS Marginella marcida, Vitrina 37: 71 Marcia 39: 107 (Liocyma) Beckii 58: 99 kennerleyi 56: 43 kennerlyi 38: 24; 49: 18 oregonensis 42: 5 subdiaphana 38: 24; 43: 50 Margarita acuminata 35: 49 margarita, Odostomia 58: 65 margaritacea, Corbula 40: 42 Margaritana 36: 42; 41: 86-9, 91 -- also as subgenus of Margaritifera alabamensis 36: 131 auricularia 36: 42 connasaugaensis 36: 131 crassa 36: 42-3 decumbens 36: 44 falcata, see margaritifera f. gesneri 36: 131 hembili 36: 42 laevis 36: 44 laosensis 36: 43 margaritifera 36: 42; 38: 32, 103; 41: 40, 88; 52: 57, 126 margaritifera falcata 41: 88; 42: 65 middendorffi 52: 59 monodonta 36: 47 murina 36: 43 simpularis 36: 43 Margarites 54: 3 cinerea 39: 131; 54: 3 cinerea maxima 39: 131 gigantea, see olivacea g. groenlandica 39: 131 groenlandica incarnata 39: 131 grosvenori 40: 104; 54: 3 helicinus 38: 27; 39: 131; 54: 2-5 incarnata, see groenlandica i. johnsoni 35: 50 (Lirularia) lirulatus 50: 49 marginata 38: 27 maxima, see cinerea m. olivacea 39: 131 olivacea gigantea 39: 131 (Lirularia) parcipicta 37: 43; 44: 93 (Pupillaria) pupillus 50: 49 (Pupillaria) salmonea 50: 49-50 spiralis, see umbilicalis s. (Lirularia) succincta 50: 49 umbilicalis 54: 3-4 umbilicalis spiralis 39: 131 Margaritifera (Margaritana) 41: 75, 91; 46: 4; 48: 107 falcata, see margaritifera f. margaritifera 56: 52 margaritifera falcata 48: 48, 107 radiata 49: 117 margaritifera, Margaritana 36: 42; 38: 32, 103; 41: 40, 88; 52: 57, 126 margaritifera falcata, Margaritana 41: 88; 42: 65 margaritifera, Margaritifera 56: 52 margaritifera falcata, Margaritifera 48: 48, 107 margaritella, Proserpinula 49: 53 Margaritiphora mazatlanica 52: 43, 45 radiata 38: 61 margaritula, Cypreolina 55: 121 Margarya 56: 124, 128 carinata, see melanoides c. delavayi 56: 128 francheti, see melanoides f. mansuyi, see melanoides m. melanoides 56: 128 melanoides carinata 56: 128 melanoides francheti 56: 128 melanoides mansuyi 56: 128 melanoides monodi 56: 128 melanoides obsoleta 56: 128 melanoides tropidophora 56: 128 monodi, see melanoides m. obsoleta, see melanoides o. rotundata 56: 128 tropidophora, see melanoides t. tuberculata 56: 128 margaryoides, Bellamya 56: 126 marginalba, Gastrocopta, see G. rupicola m. marginata, Achatina 52: 26 marginata, Alasmidonta 36: 98; 37: 29; 40: 66; 59: 110 marginata, Anodonta 38: 93; 40: 50, 114; 41:84,92 marginata, Archachatina 51: 34 marginata. Helix 57: 18 marginata, Margarites 38: 27 marginata, Obba 57: 18 marginata, Pupa (Pupoides) 39: 42 marginatus, Limax 52: 138; 57: 109-12 marginatus, Pupoides 36: 65; 38: 42; 40: 16; 42: 66; 43: 44, 57, 68; 47: 16-7; 48: 82; 50: 98, 121; 51: 57, 106; 52: 15, 29; 53: 77-8, 88; 54: 31; 58: 62, 69, 127-8; 60: 99 marginatus nitidulus, Pupoides 39: 42 marginatus, Strombus 37: 49 Marginella 39: 82; 54: 49; 60: 60 acaria 36: 122 amabilis 56: 112-3, 123, pi. 14 apicina 37: 54; 39: 85; 58: 62 (Volvaria) avena 39: 85 beali 54: 63 burchardi 60: 62 (Hyalina) californica 37: 41; 47: 47 carnea 56: 112, 114, 123, pi. 14; 59: 43 clenchi 49: 139; 50: 22 curta 37: 123 denticulata 46: 117; 56: 76 denticulata destina 56: 75, pi. 7 denticulata opalina 56: 75 destina, see denticulata d. evelynae 56: 113-4, 123, pi. 14 formosa 60: 62 217 Marginella INDEX TO guttata 39: 85; 54: 63; 56: 112, 115, 123, pi. 14; 58: 39 hartleyana 55: 65, pi. 3 idiochila 56: 75-6, pi. 7 jaspidea 54: 49 jewettii 36: 34 labiata 39: 85 labrosa 60: 62 nobiliana 56: 114, 123, pi. 14 oblonga 39: 85; 56: 112-3, 123, pi. 12 opalina, see denticulata o. regularis 36: 18, 34; 37: 41 roosevelti 56: 113 subtrigona 36: 34 marginella, Pleurodonte (Caracolus) 40: 38, 90; 59: 117 marginella transitoria, Pleurodonte 40: 90 Marginodostomia 50: 108 margueritae, Polygyra, see P. uvulifera m. mariae, Bulimulus, see B. alternatus m. mariae, Durangonella 59: 20-22, pi. 3 mariae, Liguus, see L. fasciatus m. mariae, Odostomia (Ividella) 42: 40, 78 mariae, Oxystyla, see O. melanocheilus m. mariae, Radiodiscus 35: 49 mariana, Euglandina 44: 83 mariana, Tegula 52: 46 marianum, Coelocentrum (Ptychocentrum) 56: 144 marica, Chione 60: 57 marielinum, Cerion 40: 74-5, 88 -- see also C. johnsoni m. maritima, Triodopsis, see T. albolabris m, maritimum, Cerion 51: 21 maritzburgensis, Conulinus 46: 102 marjoriae, Cantharus, see C. vlbex m. marmorata, Lacuna 37: 42; 38: 17-8; 50: 48 marmorata, Peristernia 36: 122 marmoratum, Cerion 57: 60 marmoratus, Liguus 36: 113-4; 38: 60 -- see also L. crenatus m. marmorea, Diala 35: 85; 37: 43 marmorea, Tonicella 40: 25 marmorensis. Discus (Gonyodiscus) 45: 82, 84-5, 87, pi. 5 marmoreus pusulosus. Chiton 60: 70 marmoreus St. Johnensis, Chiton 60: 70 marmoreus, Conus 36: 121; 49: 41; 57: 72; 60: 56 marmorea, Barleeia 35: 85 marochiensis, Natica 36: 122; 58: 122 Marpessa 59: 118 laminata 59: 118 Marsenina 52: 124; 53: pi. 12 glabra 39: 132 globosa 53: 41, pi. 8; 56: 63, pi. 3; 58: 18 marshalli, Micronaias 57: 15 marshalli, Mitra 45: 143 marshalli, Pleurobema 41: 139, pi. 3 Marstonia 40: 140; 47: 12; 60': 86-7 -- subgenus of Amnicola Marstoniopsis 60: 86-7, 105 steinii 60: 86 marsupialis, Endodonta 42: 70 Marsupina -- subgenus of Bursa martensi, Lamellaxis 53: 93; 58: 91 martensi modestus, Lamellaxis 53: 93; 58: 91 martensi, Ochrodermella 58: 85 martensi, Odontostomus 54: 92, 94 martensiana, Lamellaxis 58: 91 martensiana, Polygyra 49: 140 martensiana, Praticolella 49: 140 martensianus, Rectartemon 41: 127 martensii, Oliva 48: 70 Martesia 49: 110-1; 58: 56; 59: 15 cuneiformis 58: 60 intercallata 49: 111 striata 49: 111 Martinella 38: 88; 41: 126 prisca 41: 126 martini, Ootoma 47: 76 martini, Oliva, see O. ispidula m. martiniana, Melongena, see M. corona bispinosa m. martiniana, Pleurodonte, see P. pera- cutissima m. martiniana Pyrula 47: 121 martinianum, Cerion 56: 6 martinianum caymanense, Cerion 56: 6, 9 martinicensis, Tellina 49: 119 masbatensis, Cyclotus 42: 68 matecumbensis, Liguus 36: 113, 114 mathewsonii, Sulcocypraea 40: 18 matthewsi, Acanthochites 41: 105 mattolensis, Helminthoglypta, see H. arrosa m. Maugerella conspicua 58: 101 magdalenensis subobsoleta 58: 101 maugeri fusiformis. Cylindrella 58: 31 mauiensis, Melania 58: 122 maupinensis, Goniobasis, see G. hemphilli m. maura palmula, Siphonaria 52: 46 Mauritia depressa 57: 25 maculifera 57: 25 mauritiana, Cypraea 35: 83-4; 40: 80; 50: 79; 51: 3; 52: 6, 103-4; 55: 2; 57: 84-5; 58: 132, 144 mauritianum, Opeas 40: 138 mauritianus , Lamellaxis (Allopeas) 58: 89 maurus, Polydontes, see P. natensoni m. maxillata, Polygyra 52: 11 maxillatum, Stenotrema 55: 9 maxima, Lutraria 44: 69; 45: 32-3 maxima, Margarites, see M. cinerea m. maxima, Oreohelix, see O. cooperi m. maxima, Ostrea 37: 49 maxima, Sagda 48: 138; 49: 54, 98 maxima jacobensis, Sagda (Parahelix) 48: 139, pi. 9; 49: 54 218 THE NAUTILUS Megasoma maxima, Schizothaerus, see S. nuttallii m. maximum tritonis, Busycon 36: 10-1 maximus, Limacella 35: 78, 80 maximus, Limax 35: 78, 118; 37: 27; 43: 68; 47: 139; 51: 54, 63; 52: 96-7; 55: 15; 57: 109-11; 58: 25; 60: 99-100 maximus cellarius, Limax 37: 28 maximus cinereus-unicolor, Limax 40: 138 maximus concolor, Limax 40: 138 maximus krynickii, Limax 40: 138 maximus maculatus, Limax 37: 28 maximus tigris, Limax 37: 28 maximus umbrosus, Limax 37: 27 maximus, Pecten 58: 54 maximus, Tresus 38: 102; 45: 33 maxwelli, Latirus 52: 86, pi. 5; 53: 83 maxwelli, Urocoptis (Autocoptis) 52: 15, pi. 7 maxwellsmithi, Helicostyla, see H. virgata m. maxwellsmithi, Leptarionta 43: 116-7 maya, Spiraxis (Volutaxis) 47: 115 maywebbae, Elliptio 48: 28 mazamae, Lymnaea 47: 33, pi. 6 mazatlanica, Cerithidea 56: 25, 27 -- see also C. varicosa m. mazatlanica, Euglandina 44: 83 mazatlanica, Glandina 44: 83 mazatlanica abbreivata, Glandina 44: 83 mazatlanica, Margaritiphora 52: 43, 45 mazatlanica, Opeas, see O. micra m. mazatlanica, Phacoides 55: 121 Mazatlania 37: 61, 63, 106 fulgurans 52: 45 mazyckii, Epitonium (Sthenorhytis) 45: 9 mazyckii. Epitonium 45: pi. 1 mazyckii, Scala (Sthenorhytis) 45: 9 mcbeanianus, Conulinus 45: 102 mcclungi, Gastrocopta, see G. procera m. mccoiana, Micrarionta 49: 70; 59: 1U3 mcgintyi, Cyphoma 52: 108; 53: 2-3. pi. 1; 55: 45; 56: 109 mcgintyi robustior, Cyphoma 55: 45, pi. 3 mcgintyi, Eubela 56: 76, pi. 7 mcgintyi, Helicostyla 46: 63 mcgintyi, Latirus 52: 84-6, pi. 5; 53: 83 mcgintyi, Plekocheilus 57: pi. 9 mcleani, Cerion (Strophiops) 51: 22 mcieani, Cerion 51: pi. 3 Mcleania 54: 56-7 darlingtoni 54: 55, 57, pi. 4 mcleodensis, Grangerella 44: 33 mearnsi, Ashmunella 36: 119-20 mearnsi, Musculium 41: 54 Mecoliotia 49: 91, 93 bermudezi 49: 92-3, pi. 5 halligani 49: 92-3 media, Bullaria 38: 60 media, Geomelania. see G. gracilis m. media. Helix 49: 24 -- see also H. cara m. media, Physa, see P. canadensis m. mediamericanum, Pupisoma 41: 144 medianum, Pisidium 40: 50; 59: 25 medinae, Anoma, see A. splendens m. medinae, Urocoptis, see U. ambigua m, mediocarinata, Valvata, see V. tricar- inata m. mediocincta, Olivancillaria, see G. gibbosa m. Medionidus 37: 58 acutissimus 37: 58, 60, 99-100 conradicus 37: 58-60, 99-100 kingii 49: 81 parvulus 37: 58-9, 99-100 plateolus 37: 58 mediterraneum, Spirolidium 40: 134 medium, Cardium (Fragum) 39: 83 medium, Trigoniocardia 49: 118; 52: 28 medius, Ostrea 38: 116 medius, Pecten 38: 116 meekiana, Gundlachia 58: 14 Meekospira 46: 68 Megachatina 52: 26 Megachatinops 52: 26 Megachatinopsis 52: 26 megacheila, Urocoptis 49: 57 megacheilos, Tudora 37: 94; 39: 41, 43 megacheilos rondeklipensis, Tudora 39: 43 Megalatractus aruanus 52: 18 Megalobulimus (Microborus) incarum 58: 29 lutescens 58: 29 pachychilus 58: 29 Megalomastoma 36: 14, 16; 38: 59; 40: 39; 57: 30 apertum 40: 90 brunnea 36: 14 croceum 56: 106-7; 57: 30 decurrens, see mani d. flavula 36: 15 hjalmarsoni 56: 107 mani 38: 61 mani decurrens 40: 90 (Farcimen) miranda 54: 34 Megalomastomeae 36: 16 Megalomphalus 40: 134 Megalonaias gigantea 36: 48; 39: 88; 40: 66; 45: 56; 47: 29-30; 56: 144 heros 36: 75 triumphans 36: 74-5 Megapelta 35: 79 -- subgenus of Limax megaptera, Proptera, see P. alata m. megarche, Oreohelix 50: 128; 58: 117 megas, Drymaeus, see D. flexuosus m. megas, Menetus, see M. exacuous m. megas, Planorbis, see P. exacuous m. megasoma, Bulimnea 42: 97; 48: 109; 52: 106-7 megasoma, Lymnaea 39: 125; 40: 136-7; 42: 16, 18; 43: 82; 50: 139 megasoma, Lymnaea (Bulimnea) 53: 102-3; 54: 7 megasoma, Polygyra, see P. columbiana m. 219 Megaspira INDEX TO Megaspira elata 59: 67 elatior 59: 67 pilsbryi 59: 67 ruschenbergiana 59: 67 Megaspis krynicki 35: 79 megastoma, Alcadia 48: 12; 54: 70 megastoma, Grangerella 50: 128 Megasurcula granti 58: 108 Megatebennus 50: 49 bimaculatus 37: 43; 50: 49 Megathura crenulata 37: 43 Megaustenia 43: 51-3 albescens, see siamense a. austeni 43: 52 birmanicum 43: 52 cochinchinensis 43: 52 fragilis 43: 52 imperator 43: 52 imperator imperatrix 43: 52 inusitatus 43: 52 khyoungensis, see praestans k. massageri 43: 52 paviei 43: 52 praecellens 43: 52 praestans 43: 52-3 praestans khyoungensis 43: 52 roudonyi 43: 52 siamense.albescens 43: 53 siamense virescens 43: 53 siamensis 43: 52-3 virescens, see siamense v. megodon, Ostrea 37: 127; 46: 110 megomphalus, Bostryx 57: 122-3 Megomphix 43: 96, 100 hemphilli 43: 96, pi. 5; 48: 47 lutarius 45: 82, 86-7, pi. 5 Meioceras 47: 112; 49: 92 -- also as subgenus of Caecum bermudezi 47: 112; 49: 92 constrictum 46: 122, pi. 6; 47; 112 leoni 46: 122 nitidum 46: 122-3 Meiophysema 48: 136 -- subgenus of Zaphysema Meisenheimeria 39: 15, 18; 44: 137 Mekongia 56: 128 boettgeri 56: 129 hunanensis 56: 129 liuiana 56: 129 magnaciana 56: 129 rivularis 56: 129 rusiostoma 56: 129 subcostata 56: 129 wilhelmi 56: 129 meladryas, Helicostyla, see H. leopardus m. melaleuca, Mitra 40: 142 melaleuca, Tegula 37: 126 Melampus 40: 125; 41: 16-7. 77; 56: 36 bidentatus 35: 88; 38: 61; 40: 126; 41: 14-5; 56: 58; 58: 20, 62, 137-8 bulloides 37: 53-4 caffra 60: 56 castaneus 58: 122 coffeus 38: 61; 39: 84 coffeus gundlachi 37:53-4 corneus 40:126 fasciatus 60: 56 gundlachi 38: 61 -- see also coffeus g, lineatus 35: 88; 38: 51; 40: 126; 56: 143 luteus 60: 56 olivaceus 36: 34; 52: 45 panamensis 46: 44 pineatus 52: 142 Melanella 36: 34; 41: 104 acicula 36: 122 aciculata 52: 118 acuta 46: 117 bermudezi 46: 117, pi. 6 bilineata 52: 28 conoidea 58: 60 hypsela 46: 117 intermedia 52: 28 micans 38: 26; 51: 101; 52: 45 opaca 36: 122 portlandica 41: 104 pusilla 36: 122 randolphi 46: 126 rosa 59: 104 Melania 43: 3, 11; 50: 44-5, 136; 53: 36; 58: 45; 59: 99 abbreviata 41: 60 acuta 51 : 93 aequalis 41: 60 alexandrensis 41: 61 amarula 49: 78 angulosa 35: 11; 43: 14 auriscalpium 43: 10 bitaeniata 41 : 58 boykiniana 42: 29-30 brevis 41: 58 brevispira 55: 119 caliginosa 36: 119 canaliculatum 43: 7, 9, 10 cancellata 42: 29 catenaria 42: 28-9 catenoides 42: 30 chalybaea 41: 60 cincinnatiensis 35: 11; 43: 13-4 columella 36: 117, 119 compacta 41 : 58 conica 43: 10; 54: 65 concinna 36: 119 consanguinea 43: 7 coricina 36: 119 corolla 52: 87 coronilla 41: 60; 43: 6 corrugata 36: 118-9 costata 43: 15-6 cruentata 35: 11; 43: 14 cubicoides 38: 44 curvicostata 42: 29-30 curvilabris 41: 60; 43: 6 cuspidata 38: 44 220 THE NAUTILUS Melanostomum densa 41: 61 densicostata 42: 30 depygis 38: 47; 41: 61; 43: 6; 51: 48 dislocata 42: 30 edgariana 36: 119 elata 38: 44 elegantula 41: 60; 43: 6 elevata 51: 93 elongata 51 : 93 etowahensis 42: 29 exarata 43: 10 exilis 54: 64 floridensis 42: 29 gibbosa 41: 60; 43: 6 globula 35: 11 grisea 41: 61-2 grossa 53: 76 haleiana 38: 45; 41: 61 henriettae 57: 21 hildrethiana 41 : 60 inflata 35: 10 inter rupta 54: 64 intertexta 42: 31 isogona 43: 14 lacqueata 51 : 92 latitans 41: 58 ligata 43: 10 lineolata 56: 20-1 livida 41: 61 mauiensis 58: 122 multilineata 51: 92 naiadarum 57: 21 napella 38: 44 niagarensis 38: 44 nickliniana 41: 60 nupera 51 : 48 obliquegranosa 49: 76 obovata 43: 3 obtusa 54: 65 occidentalis 35: 10; 43: 16 occulta 38: 44 opaca 41: 59 oreadarum 57: 21 ovularis 43: 14 pagodiformis 52: 126-7 papillosa 38: 48; 42: 29 pilula 35: 11 planospira 41: 58; 43: 7 plicifera 40: 101- -see also tuberculata p postelli 42: 29 (Anculosa) praerosa 43: 3, 10 procissa 41: 59 rarinodosa 43: 7 rufa 45: 42 rufescens 45: 42 rugosa 36: 119 scropulus 49: 76 sculpta 57: 20 sellersiana 36: 119 semicarinata 51: 92-3 . setosa 49: 62, 73-4, 77-9 showalterii 58: 46 sordida 43: 5 spinulosa 37: 36 striata 42: 31 striatula 42: 31 strigosa 41: 58; 42: 31 stygia 51: 93 sublirata 42: 29 substricta 43: 10; 54: 65 subula 49: 76 sulcosa 42: 31 suturalis 54: 64 tabulata 41: 60 telonaria 57: 21 torta 41: 58 torulosa 52: 127 trilineata 43: 14; 46: 38 troostiana 42: 31 tuberculata 51: 93 tuberculata plicifera 40: 101 turner! 37: 98 turrita 57: 21 undosa 43: 6 virginica 51: 92 viridis 35: 10; 43: 15-6 Melaniella 49: 22; 55: 25-6 -- subgenus of Varicella melanielloides, Spiraxis 53: 14 melanocephala, Krynickia 35: 79 melanocephalus, Agriolimax 35: 79 melanocephalus, Krynickillus 35: 79 melanocheilus, Oxystyla 44: 82; 53: 6 melanocheilus mariae, Oxystyla 53: 6, pi. 2 Melanoides 37: 36; 46: 38; 49: 79 aculeus 49: 75, 77-9 crenulata 49: 75, 77-9 hastula 49: 75, 77-9 lateritia 49: 76-9; 50: 18 moussoni, see tuberculata m. pugilis 49: 76-7, 79 rhizoporarum 49: 79 riquetii 49: 76-8; 50: 18 scabra 50: 11 tuberculata 49: 78; 50: 10. 12, 17-8 tuberculata moussoni 40: 101 melanoides, Anculosa 54: 65 melanoides, Margarya 56: 128 melanoides carinata, Margarya 56: 128 melanoides francheti, Margarya 56: 128 melanoides mansuyi, Margarya 56: 128 melanoides monodi, Margarya 56: 128 melanoides obsoleta, Margarya 56: 128 melanoides tropidiphora, Margarya 56: 128 Melanopsis 43: 11; 44: 105; 50: 12 doriae 50: 10, 12 doriae nigra 50: 10 neritiformis 35: 11; 43: 14 nigra, see doriae n. praerosa 50: 12 melanostoma, Dolium 55: 2 melanostoma, Litiopa 55: 128-30; 58: 70 melanostoma, Polinices 60: 55 melanostomum, Cerion 49: 50, pi. 3 221 Melanozona INDEX TO melanozona, Engina 42: 40 Melantho 50: 136 decampi 50: 136 decisa 52: 129 genicula 52: 129 Melarhaphe --subgenus of Littorina melastoma, Auris 59: 116 meleagris, Theodoxus 54: 66 Melibe 35: 50, 52-55; 36: 89-93; 38: 34 bucephala 35: 50 capucina 35: 50 fimbriata 35: 51 leonina 35: 55; 36: 86, 89-90, 92-6, 135-37, pis. 2-5; 38: 34 ocellata 35: 50 papulosa 35: 50 pelluclda 36: 95 rangii 35: 50 rosa 35: 50 vexillifera 35: 50 Melina obliqua 38: 61 melleus, Unio (Nephronaias) 35: 24 mellita, Urocoptis 45: 88-9, 96-8 mellita perlonga, Urocoptis 45: 89, 97-8 Melongena 36: 110; 47: 57, 119 altispira, see corona a. aspinosa, see corona a. belknapi 47: 118 bispinosa, see corona b. corona 37: 53-4; 39: 85; 40: 100; 47: 38, 57, 117-121, pi. 12; 50: 5, 29 corona altispira 47: 119, pi. 12; 52: 28 corona aspinosa 47: 120 corona bispinosa 47: 120-1, pi. 12 corona bispinosa martiniana 47: pi. 12 corona inspinata 47: 57, 118, pi. 6 corona minor 47: 119, pi. 12 corona perspinosa 47: 120, pi. 12 corona subcoronata 47: 118-20, pi. 12 inspinata, see corona i. martiniana, see corona bispinosa m. melongena 47: 118 minor, see corona m. patula 45: 79; 46: 111; 52: 45; 57: 4, pi. 2 perspinosa, see corona p. and sub- coronata p. subcoronata perspinosa 47: 120 -- see also corona s. melongena, Melongena 47: 118 melvilli, Conus 53: 40, pi. 8 membranacea, Leptaxis 35: 102 Mendana 54: 36 mendica, Alectrion 36: 34; 37: 41; 44: 93 mendica, Schizopyga 38: 25 mendozana, Eutrochatella, see E. chryso- chasma m. mendozana, Urocoptis 41: 80; 42: pi. 1 Menestho -- also as subgenus of Odostomia albula 35: 87 Menetus 44: 77; 49: 47-8; 53: 79; 56: 12, 32; 59: 71; 60: 70 -- also as subgenus of Planorbis alabamensis 58: 12 buchanensis, see dilatatus b. cooperi 54: 97 dilatatus buchanensis 48: 56, 59 exacuous 40: 50-1; 42: 59, 133; 44: 46; 48: 59, 110; 50: 116, 129; 58: 78 exacuous megas 42: 133; 50: 116; 51: 129 kansasensis 51: 129-31 megas, see exacuous m. multilineatus, see planulatus m. opercularis 49: 47 planulatus 44: 78-9; 49: 47 planulatus multilineatus 49: 48 umbilicatellus 51: 130 mengeana, Solenosteira 59: 144 mera, Tellina 51: 94 mercatoria, Columbella 38: 61; 39: 85; 58: 61 mercatoria perversa, Euhadra 45: 30 mercatoria, Pyrene 53: 38; 55: 44 mercenaria, Venus 38: 49; 41: 12, 14-5, 120-1; 42: 102; 49: 132; 50: 5, 67; 56: 60, 142; 57: 67; 58: 58, 71; 59: 97; 60: 34 mercenaria notata, Venus 38: 49; 41: 120- 2; 56: 142; 58: 58 meridana, Streptostyla 55: 59 meridionalis, Striatura 53: 47; 55: 8 — see also S. milium m. merita, Cytharella 37: 41 meropsis, Moerella 36: 34 Merovia pyriformis 36: 34; 37: 41 Mesalia 36: 27 merriami, Fluminicola 53: 124 mertensii, Ischnochiton 44: 8; 46: 124 Mesarion 40: 72 Mesembrinus 53: 112 Mesodesma arctatum 36: 60; 40: 25; 57: 31 pacifica 43: 24 striata 60: 57 Mesodon 48: 83; 53: 60; 57: 44 -- also as subgenus of Polygyra albolabris 57: 132 appressus 56: 61-2; 58: 127-8; 59: 49 appressus sanctageorgiensis 59: 49 binneyanus 54: 109 bucculenta, see thyroidus b. clausus 56: 62; 60: 79 Columbiana 53: 58 Columbiana depressa 49: 134 devius 37: 134-5 elevatus 54: 79-80; 56: 62; 57: 44 eritrichius 53: 56-60 euthales 53: 57, 60-1 exoletus 56: 104-5; 60: 79 inflectus 55: 9, 97; 58: 127-8; 60: 5 mitchellianus 60: 79-80 multilineata unicolor 38: 33 pennsylvanicus 57: 42-4; 58: 128 perigraptus 55: 9, 97 rugeli 54: 19 222 THE NAUTILUS Micrarionta sanctageorgiensis, see appressus s. sayanus 58: 127; 59: 28 thyroidus 54: 142-3; 55:9, 14, 97; 56: 71-2; 57: 44,'71, 136; 58: 25-6, 63, 110, 126-8; 59: 68; 60: 5, 79, 100 thyroidus bucculenta 54: 69 unicolor, see multilineatus u. zaietus 58: 127; 60: 78-80 mesoleuca, Acmaea 47: 47 mesolia, Holospira 47: 17 Mesomphix 50: 121; 51: 57; 54: 20 andrewsae 35: 43; 46: 91 cupreus 44: 129; 48: 36, 58; 54: 8§-9; 55: 14-5; 57: 137, 140; 59: 89, 91 inornatus 39: 80; 44: 129; 48: 58; 50: 121; 51: 56-7; 53: 87; 55: 14; 58: 127; 59: 68, 90; 60: 5 laevigatus 39: 80; 40: 66; 44: 17; 46: 59, 91; 47: 44; 58: 127 laevigatus latior 46: 58 perlaevis 48: 80; 50: 121; 51: 56-7, 106; 52: 97; 55: 8 perlaevis vulgatus 47: 144, 147; 53: 87; 58: 127 pilsbryi 54: 19-20; 55: 8 planus, see subplanus p. rugeli 35: 43; 45: 138 subplanus 40: 136; 46: 91 (Micromphix) subplanus planus 47: 70, pi. 7 vulgatus, see perlaevis v. Mesoprocta 39: 15 Mesopteryx 69: 105 mespillum, Littorina 38: 61; 51: 113 messageri, Megaustenia 43: 52 messorius, Murex 54: 45 meta, Potamides 56: 25-6 metaformis, Bulinus 46: 71 metaformis. Helix 46: 71; 59: 120 metanevra, Quadrula 36: 48 metanevra wardii, Quadrula 36: 48; 40: 66 metamorphosa, Ashmunella 49: 67-8 metcalfei, Ampullarius 39: 2 metcalfei, Subulina 36: 122 Metcalfeia 48: 62 Metis 54: 141-2; 55: 64-5 alta 36: 34; 46: 111 excavata 37: 129 Metostracon 56: 83 Metula 47: 145 amosi 58: 28 metulifera, Acanthodoris 39: 60 mexicana, Cassis, see C. vibex m. mexicana, Chama 57: 5 -- see also C. frondosa m. mexicana, Cypraea, see C. Isabella m. mexicana, Micrarionta, see M. rowelli m. mexicana, Murex, see M. palmarosae m. mexicana, Ostrea 52: 45 mexicana. Patella 45: 79; 46: 111; 52: 44-5 mexicana, Polymesoda 44: 85 mexicanum, Aperostoma 56: 137; 57: 64 mexicanum, Cyclostoma 36: 14-5; 56: 137 mexicanum, Cyrtotoma 36: 14 mexicanus, Ancistromesus 43: 137 mexicanus, Lamellaxis 53: 93; 58: 85, 91; 59: pi. 9 mexicanus abbreviatus, Lamellaxis 53: 93 mexicanus, Pachychilus, see P. pannu- cula m. mexicanus, Psammodulus 47: 127-8, pi. 13 miamiensis, Ampullaria 38: 60 miamiensis, Liguus 38: 60 -- see also L. castaneozonatus m. miamiensis, Pomacea, see P. paludosa m. micans, Melanella 38: 26; 51: 101; 52: 45 micans. Varicella 49: 27 Michanellum oregonense 38: 26 michiganensis, Helisoma, see H. campanulatum m. michiganensis, Physa 40: 51-2; 44: 89 michoacanensis, Euglandina 55: 60 micra, Lamellaxis (Leptopeas) 49: 25; 58: 90 micra, Leptachatina, see L. brevicula m. micra, Opeas 38: 62; 44: 82; 56: 7; 58: 90 micra mazatlanica, Opeas 44: 82, pi. 5 Micranellum oregonensis 51: 104 Micrarionta 40: 5; 42: 99; 43: 73, 75, 115; 44: 125; 46: 4; 48: 67; 49: 14; 50: 122-4; 51: 11, 33; 53: 142; 56: 83-4; 58: 72; 59: 103-4 amboiana, see hutsoni a. aquae-albae 43: 75 areolata 46: 74 bakerensis 49: 15 -- see also rowelli b. beatula 42: 99-100 (Eremarionta) borregoensis 43: 39; 58: 72 brunnea 49: 15; 59: 103 carrizoensis 59: 103 -- see also harperi c. catalinae 42: 100 cathedralis, see indioensis c. chacei 59: 104 chocolata 49: 15; 59: 103 chuckwallana 49; 15; 59: 103 desertorum 44: 4; 48: 67 -- see also hutsoni d. gabbi 42: 100; 44: 86 granitensis 49; 70; 59; 103 harperi 50: 122-4; 51: 33 harperi carrizoensis 50: 123-4 harperi orcuttiana 51: 33 harperi orcutti 50; 123-4 hilli, see hutsoni h. hutsoni 44: 4-6; 48; 67; 59: 103 hutsoni amboiana 44: 123, pi. 7; 48: 68 hutsoni desertorum 44: 5, 123 hutsoni hilli 44; 6, 123 hutsoni unifasciata 44; 6-7, 123-4 immaculata 59; 104 indioensis 43: 39, 115-6; 50: 124-5; 59: 103 indioensis cathedralis 43: 115-6 223 Micrarionta INDEX TO indioensis remota 50: 124 indioensis wolcottiana 43: 116 indioensis xerophila 43: 115- 6; 50: 124- (Eremarionta) inglesiana 42: 143 kellettii 44: 86 levis 55: 102 mccoiana 49: 70; 59: 103 mexicana, see rowelli m. micrometallus 44: 125; 58: 72 mille-palmarum 49: 14-5 (Eremarionta) morongoana 43: 39 newcombi 37: 107 ora 50: 122 orcutti, see harperi o. orcuttiana, see harperi o. pandorae 46: 115 remota 59: 103 -- see also indioensis r. rixfordi 49: 15; 51: 141; 59: 103 rowelli 37: 107; 48: 67-8; 49: 14 rowelli bakerensis 48: 68 rowelli mexicana 48: 67 ruficincta 42: 100; 44: 86 stageri 59: 104 stearnsiana 51: 61 unifasciata, see hutsoni u. (Eremarionta) wolcottiana 35: 48; 36: 139; 43: 39-40, 116; 58: 72 -- see also indioensis w. xerophila, see indioensis x. Micrelenchus 53: 33-4 Microarion 40: 72 Microborus -- subgenus of Megalobulimus Microceramus 38: 56; 39: 106; 49: 26; 56: 1-2, 6 anafensis 40: 90 arubanus, see bonairensis a. bonairensis arubanus 40: 143 bonairensis curacoanus 39: 42 caymanensis 56: 5, 9 concisus 56: 6 coracaoana 39: 42 curacoanus, see bonairensis c. gossei 38: 61; 49: 56 perconicus 40: 90 pontificus 38: 61; 41: 52 texanus 47: 79 Microconus 40: 64; 41: 144; 54: 57 wilhelmi 54: 57 Microcystis 55: 36 chamissoi 38: 82 conula 41: 32 venosa 38: 82 vinosa 41: 32 microdiscus, Happia 41: 125 Microdochus floridanus 57: 32 microdonta, Polygyra 38: 58, 61 microdonta, Stylodonta 59: 121 microglypta, Geomelania 48: 88 Microhappia 41: 125 brasiliensis 41: 125 Micromena 53: 9-11, 15 -- subgenus of Spiraxis micrometallus, Micrarionta 44: 125; 58: 72 micromphala, Geomitra 35: 13-4 5 Micromphix -- subgenus of Mesomphix Micromya concestator, see lienosa c. iris 37: 103, 105; 40: 105; 49: 81 lienosa 37: 105, 141; 39: 92; 49: 81 lienosa concestator 37: 140; 39: 92 nebulosa 37: 101-3, 105; 40: 105 nigrina, see vibex n. ogeecheensis 49: 81 ortmanni 39: 108; 40: 67 umbrans, see vanuxemensis u. vanuxemensis umbrans 37: 137, 139 vibex 37: 103, 105; 49: 81 vibex nigrina 37: 103-4 Micronaias marshalli 57: 15 Microphysa vortex 50: 18 Microphysula 43: 144; 45: 86; 54: 57, 110 cookei 43: 142 ingersolli 42: 124; 43: 126, 142; 44: 114; 45: 84; 54: 29-31, 53, 57, 96 ingersolli meridionalis 54: 116-7; 55: 143 Microsagda 48: 136; 50: 70-1; 54: 60-1 -- subgenus of Hyalosagda microsticta, Diadora 40: 141; 57: 32 Microstoma 40: 70 hanleyanum 40: 70 microstoma, Alcadia 48: 12 microstoma, Physa 38: 133; 40: 8, 66; 54: 65; 56: 132 microstriata, Aplexa 44: 106 Microtralia 40: 125-6; 52: 29 -- also as subgenus of Auricula minuscula 40: 126 occidentalis 40: 126 middendorffi, Margaritana 52: 59 middendorffii, Eulota 38: 63 middendorffii, Macoma 47: 102 middlemissi, Pecten (Chlamys) 50: 55 mighelsi, Lymnaea 47: 33 mighelsi, Philbertia 36: 122 mighelsi, Stagnicola, see S. emarginata m. mighelsi, Cymatosyrinx 36: 121 miguelina, Vitrea 35: 39 Milax 37: 33; 48: 143 gagates 35: 97; 39: 103; 57: 113 sowerbii 57: 114 mildredae, Pecten (Chlamys) 56: 110, 123, pi. 12 -- see also P. imbricatus m. miles, Sclerochiton 58: 102 milesii, Campeloma 40: 50; 42: 136; 54: 12, 14, 16-7 milesii, Goniobasis 38: 44 miliaris, Conus 60: 56 miliaris, Lasaea 56: 32 milium. Helix 39: 135 milium, Pisidium 37: 22; 40: 26, 29; 52: 82-3, pi. 6 milium, Striatura 37: 66; 40: 48; 42: 21, 34; 43: 114, 144; 48: 58; 52: 95; 56: 69; 57: 133 224 THE NAUTILUS Mirabilis milium meridionalis, Striatura 39: 28; 40: 16; 43: 114 milium pugetensis, Striatura 36: 37-8 milium, Vertigo 37: 66, 68; 40: 16; 42: 21; 50: 98; 51: 127 milium, Vertigo (Angustula) 57: 128; 60: 98 millecostatus, Radiodiscus 43: 126 millecostatus costaricensis, Radiodiscus 43: 126-7 mille-palmarum, Micrarionta 49: 14-5 millepedarius, Strombus 37: 49 millepunctata, Helicella 50: 9 milleri, Cepolis 38: 60 milleri, Cerion 49: 49-50 milleri, Helix 52: 78 milleri. Teredo 58: 55-6 Milneria kelseyi 37: 41; 50: 86 minima 50: 86 miltoplax, Chiton 45: pi. 10 miltozona, Rissoina 36: 122 mindanus, Conus 45: 106 mindoroensis, Helicostyla 46: 64 miniacea, Oliva 42: 7 miniata, Patella 41: 112 minima, Alcadia 40: 88; 56: 4 minima, Batillaria 56: 22-3, 28-30 minima degenerata, Batillaria 56: 23 minima rawsoni, Batillaria 56: 23 minima, Brachypodella, see B. alba m. minima, Ceropsis 50: 86 minima, Helix (Hyalina) 57: 132-3; 58: 31 minima, Littorina 46: 119; 51: 113; 53: 68 minima, Macrochlamys 57: 133 minima, Milneria 50: 86 minima, Salasiella (Perpusilla) 54: 83, pi. 6 minimum, Cerithium 37: 53-4; 38: 60; 39 86 minimum nigrescens, Cerithium 37: 53-4; 39: 86 minimum septemstr latum, Cerithium 37: 53-4; 39: 86 minimum, Haplotrema 55: 98-101 minimus, Ceratodiscus 41: 62-3 minimus, Cyclotus 41: 62 minimus, Murex 56: 22, 29 minimus. Turbo 46: 119; 51: 113 minnesotensis, Helisoma, see H. antrosa m. minnetonkensis, Lymnaea (Galba) 36: 23-5 minnor, Cerithidea 56: 21 Minolia striatula 36: 122 minor, Alasmidonta 40: 105 minor, Anculosa 35: 10 minor, Ensis 57: 33-4, pi. 6; 58: 59 minor megistus, Ensis 57: 33, pi. 6 minor, Bellamya, see B. quadrata m. minor, Chondropoma, see C. pictum m. minor, Euglandina 38: 60 minor, Geomelania 48: 87 minor densecostata, Geomelania 48: 83, 87, pi. 3 minor, Harpa 60: 56 minor, Helisoma, see H. campanulatum m. minor. Helix, see H. fidelis m. minor, Melongena, see M. corona m. minor, Ocenebra 60: 41-2, pi. 4 minor, Odontostomus, see O. doellojuradoi m. minor, Pleurodonte 38: 61 -- see also p. auricoma m. minor, Polygyra, see P. loricata m. minor, Spiraxis 53: 14 -- see also S. acus m., and S. nitidus m. minor, Tritonalia, see T. interfossa m. minus, Haplotrema, see H. concavum m. minus, Pupisoma 37: 65-6; 42: 21 minuscula. Auricula (Microtralia) 40: 126 minuscula, Hawaiia 45: 117; 47: 16-7, 147; 48: 79, 106; 50: 121; 51: 57, 105-6; 52: 15, 29, 95-6; 53: 47, 77-8, 87; 54: 111; 55: 8; 57: 131-2; 58: 63, 69, 110 minuscula alachuana, Hawaiia 37: 16-7 minuscula neomexicana, Hawaiia 48: 115; 54: 30-1; 55: 144 minuscula. Helix 56: 56 minuscula, Microtralia 40: 126 minuscula, Nenia 58: 83, pi. 3 minuscula, Paravitrea 42: 21, 66; 43: 67, 118; 44: 45 minuscula alachuana, Paravitrea 42: 21 minuscula, Pseudohyalina 38: 42; 40: 17, 47 minuscula, Tralia (Alexia?) 40: 126 minuscula. Vertigo 57: 127-9 minuscula, Zonitoides 37: 33, 66-9; 38: 7; 41: 53; 42: 94; 44: 38 minusculus, Spiraxis (Micromena) 53: 92, 94, pi. 11 minusculus alachuanus, Zonitoides 36: 105; 37: 68-9; 41: 52 minuta, Diadora 53: 38 minuta. Helix 58: 31 minuta, Leda 38: 24; 40: 22 minuta, Nuculana 54: 3 minuta, Olivella 48: 71 minuta, Paludestrina 35: 87; 56: 143; 59: 97 minuta, Porphyria 48: 71 minuta, Rissoa 35: 87 minuta, Turtonia 38: 27 minutissimum, Punctum 48: 57-8; 55: 7, 97; 57: 133 minutus, Krynickillus 35: 79 minutus, Spiraxis (Micromena) 53: 11, 14- 5, 92, 94, pi. 3 mionecton, Vallonia, see V. adela m. mioperplicatulus, Pyrgolampros 51: 54 mirabile, Pisidium 35: 113 mirabilis, Adamsiella 48: 64 mirabilis, Helicostyla 46: 71; 59: 120 mirabilis, Partula 37: 116, 118 mirabilis, Spiraxis (Dignaxis) 49: 25; 53: 11, 15, pi. 5 225 Miradiscops INDEX TO Miradiscops 38: 88; 39: 34; 43: 144; 49:25 opal 49: 25 miradorensis, Spiraxis (Miraradula?) 53: 12, 93 miranda, Adamsiella 48: 64 miranda , Megalomastoma (Farcimen) 54: 34 Miralda -- subgenus of Odostomia Mirapex -- subgenus of Spiraxis Miraradula -- subgenus of Spiraxis Mirapex 53: 11, 14 Miraradula 53: 9-10, 12 Mirarissoina 51: 36 Miraverellia 36: 36 Miroconus 54: 56 Misantla 42: 36 mirum, Pisidium 37: 20 misantlensis, Schasicheila 42: 36 misiona, Helminthoglypta, see H. traski m. mississippiense, Dentalium 40: 19 mississippiensis, Unio 36: 100 missouriensis, Amnicola 53: 118-9 mitata, Mitra 36: 122 mitchelli, Scala 36: 143 mitchelli, Unio 36: 143 mitchelliana, Fadyenia, see F. baquieana ni. mitchelliana, Polygyra 43: 67, 86 mitchellianus, Mesodon 60: 79-80 mitella, Acmaea 52: 44 Mitra 37: 45; 43: 72, 138; 45: 53-5, 81; 47: 145; 48: 90; 55: 78-80; 58: 39 acuminata 60: 56 astrica 36: 122 aurantia 36: 122 auriculoides 36: 122 barbadensis 53: 38 compsa 51: 90 conica 45: 55 consanguinea 36: 122 cophina 36: 122 cornea 55: pi. 7 coronata 36: 122 cucumerina 55: 2 deshayesii 60: 56 erythrogramma 45: 54 fergusoni 55: 78-80, 144 ferruginea 36: 122 flavescens 36: 122 (Scaphella) florida 55: 45, 78, 80, 144, pis. 3, 7 fulva 36: 122 (Pusia) gemmata 39: 85 henekeni 51: 90-1 histrio 58: 39 idae 50: 47 kewaloensis 36: 122 lemarcki 36: 122 lens 44: 25; 52: 45 lienardi 36: 122 lineata 45: 53 lineata terplicata 45: 54 lineolata 51: 91 lipara 36: 122 litterata 36: 122; 60: 56 loweana 45: 29 lowei 45: 29 lugubre 36: 122 marshalli 45: 143 melaleuca 40: 142 mitata 36: 122 olivaeformis 60: 56 ostergaardi 36: 122 paupercula 45: 54 peasei 36: 122 retusa 60: 56 stephensoni 51: 91 swainsonii 48: 90 tabanula 36: 122; 60: 56 terplicata 45: 54 -- see also lineata t. thaanumi 36: 122 ticaonica vagans 36: 122 tigrina 45: 54 tristis 52: 45 tuberosa 36: 122 tusa 36: 122 vagans, see ticaonica v. zaca 47: 145; 48: 90-1 mitra, Acmaea 38: 27; 45: 22-5, pi. 2; 50: 48; 53: 22 mitra funiculata, Acmaea 45: 24-5 mitra tenuisculpta, Acmaea 45: 24 mitra. Helix 37: 49 mitra, Scurria 45: 24 mitra funiculata, Scurria 45: 24 mitra tenuisculpta, Scurria 45: 25 mitra cardinalis, Voluta 37: 49 mitra episcopalis, Voluta 37: 45, 49 mitra papalis, Voluta 37: 49 Mitrella 45: 108 carinata 44: 93; 50: 47; 53: 22 carinata gausapata 50: 47 gausapata 53: 22 -- see also carinata g. gouldii 50: 47 guttata, see ocellata g. lunata 56: 143; 58: 61; 60: 75 ocellata 52: 45 ocellata guttata 52: 45 tuberosa 50: 47; 53: 22 Mitromorpha filosa 58: 100 hawaiiense 36: 122 Mitromorphina filosa 37: 41 miwoka, Helminthoglypta, see H.arrosam. mobiliana, Praticolella 55: 97 Modelia striata 38: 16 modesta, Anculosa 58: 41 modesta, Parreysia 36: 43-4 modesta, Salasiella (Perpusilla) 54: 81-3, pi. 6 modesta. Vertigo 37: 79; 38: 65, 123; 40: 54, 77, 112; 43: 62, 134; 46: 128; 50: 88; 53: 64, 77, 128-30, 133; 58: 79 modesta castanea. Vertigo 40: 113 modesta corpulenta. Vertigo 44: 114 226 THE NAUTILUS Monadenia modesta parietalis, Vertigo 40: 113; 56: 53 modesta ultima. Vertigo 50: 88; 53: 133 modestior, Achatina 52: 27 modestior candefacta, Archachatina 52: 27 modestum, Pleurocera 56: 132 modestum, Sphaerium, see S. striatinum m modestus, Angulus 45: 109 modestus, Anodontoides 36: 98, 124 modestus, Lamellaxis, see L. martensi m. modestus, Unio 36: 43-4 Modicella 36: 64 modicella, Fossaria 42: 56, 125; 44: 114; 45: 117; 48: 59; 59: 29 modicella rustica, Fossaria 43: 119; 44: 88; 54: 29 modicella, Galba 40: 50 modicella, Lymnaea 43: 88 -- see also L. humilis m. modicum, Pleurobema 36: 82-3 modicus, Pupoides 37: 65, 67-8 modicus, Unio 36: 83 Modiola, see Modiolus Modiolarca trapezina 54: 91 Modiolaria 54: 5; 58: 16 laevigata 54: 3-4 lateralis 58: 17, 57 nigra 56: 60 skomma 58: 16 Modiolus 41: 16; 44: 103; 45: 33, 74, 107 americanus 59: 68 atratus 49: 2 capax 36: 34; 52: 45 demissus 54: 127; 56: 60; 57: 69; 58: 22, 137-8; 60: 75 demissus granosissimus 43: 35 (Brachydontes) demissus plicatulus 38: 49; 49: 64; 56: 141; 58: 57 granosissimus, see demissus g. guyanensis 45: 73-4 modiolus 35: 30-1; 38: 24; 40: 23; 43: 50; 47: 102; 49: 16; 56: 60; 57: 67; 59: 97 mutabilis 45: 74 nonuranus 49: 16, pi. 1 (Gregariella) opifex 37: 41 pallidulus 48: 128 papuanus 51 : 92 pictus sagittatus 48: 127 (Brachydontes) playasensis 49: 17, pi. 1 plicatulus 41: 12, 15; 45: 138 -- see also demissus p. politus 48: 127-8 politus sagittatus 48: 127 (Amygdalum) sagittatus 48: 127, pi. 7 -- see also pictus s. and politus s. speciosus 49: 17 tulipus 37: 55; 58: 57; 59: 67 tumbezensis 48: 120; 49: 16, pi. 1 tumescens 60: 56 modiolus, Modiolus 35: 30-1; 38: 24; 40: 23 43: 50: 47: 102, 49: 16; 56: 60: 57: 67; 59: modiolus, Mytilus 45: 33; 54: 91 modulosa, Cardita 58: 118 Modulus 38: 56; 47: 128-9; 53: 38; 58: 107 basileus, see modulus b. disculus 52: 45 floridanus 37: 54; 38: 61 modulus 35: 120-1; 38: 61; 39: 86; 52: 28 modulus basileus 47: 129 tectum 55: 2 modulus. Modulus 35: 120-1; 38: 61; 39: 86; 52: 28 modulus basileus. Modulus 47: 129 moellendorfi, Planorbis 52: 59 moenensis, Cerithium 54: 72 moenensis, Thericium 54: 73 moenensis auricoma, Thericium 54: 73 moenensis stantoni, Thericium 54: 73 Moerella meropsis 36: 34 moeropsis, Tellina 52: 46 moesta, Carunculina 37: 100-1 moesta glans, Carunculina 37: 101 moesta, Nassa 46: 52 moesta lencops, Nassa 47: pi. 8 moesta, Pseudomelatoma 44: 93 mohaveana, Helminthoglypta 40: 140; 43: 73- 4; 44: 125; 45: 21, 50 Mohavelix 58: 72 moleculina, Columbella (Alia) 36: 121 MoUeria 59: 12 costulata glabra 60: 70 mollicella, Acanthodoris 39: 49, 60 Monacha bidens 50: 134 umbrosa 50: 134 monacha, Helicostyla (Calocochlea) 47: 116 monachus, Conus 37: 49 Monadenia 41: 87; 42: 81; 44: 122; 46: 4, 79; 49: 35: 51: 64; 53: 141-2; 56: 83; 60: 93 beryllica, see fidelis b. celeuthia, see fidelis c. churchi 46: 79, 82-3, 86, pis. 5, 6 circumcarinata 46: 85; 51: 24; 52: 139 fidelis 40: 124: 41: 74; 42: 81; 43: 142; 44: 30, 102, 122-3; 46: 12, 14, 82-3, 142-4: 49: 35, 48; 51: 28-9, 32-3, 64-5, 121; 53: 107-8, 141 fidelis beryllica 49: 48 fidelis celeuthia 40: 122 fidelis kHmathica 51: 31 fidelis leonina 51 : 29 fidelis ochromphalus 51: 28 fidelis pronotis 49: 49 fidelis semialba 51: 65 fidelis subcarinata 60: 93-4 fidelis trinidadensis 60: 93-4 hillebrandi 48: 70; 53: 141 hirsuta 51: 141 -- see also mormonum h. infumata 46: 83; 51: 121 klamathica, see fidelis k. leonina. see fidelis 1. ; loweana. see mormonum 1. 97 mormonum 46: 83, 85; 51: 33 227 Monadenia INDEX TO mormonum hirsuta 40: 125 mormonum loweana 41: 79 ochromphalus, see fidelis o. pronotis, see fidelis p. semialba 42: 80-1; 51: 63-5; 53: 108 -- see also fidelis s. subcarinata, see fidelis s. trinidadensis, see fidelis t. troglodytes 46: 83-4, 86, pi. 5 monaulax, Odostomia 58: 65, 106 monarchus, Conus 60:56 monas, Pisidium 37: 30 monbeigi, Pachydrobia 58: 134 monelasmus, Urocoptis 41: 80 monentolophus, Deroceras 58: 16 moneta, Cypraea 46: 44-5; 50: 80; 51: 2-3; 52: 5-6, 103-4; 55: 2; 57: 24, 83-5; 58: 107 129, 132-3. 144; 59: 106 moneta, Venus 37: 49 Monetaria 53: 36; 60: 52 Monia -- also as subgenus of Pododesmus macrochisma 38: 24 Moniliopsis -- also as subgenus of Clath- rodrillia monilifer, Conus 37: 123 monilifera, Euglandina 55: 54 moniliferum, Pleurocera 43; 8 Monilio.)sis grippi 55: 141 monocarinatus, Gyraulus 47: 27-8 Monocaulis 39: 15, 18 Monocaulos 39: 15 Monoceros 38: 18 brevidens 38: 19 brevidentatum 38: 19 engonatum 38: 19-21, 104 lapilloides 38: 19-21 lapillus 38: 20 paucilirata 58: 100 punctatum 38: 19-20 punctulata 38: 19-21 spiratum 38: 20 unicarinatum 38: 19-20, 104 Monocondylaea 39: 33; 45: 55-8 costulata 45: 55-7 reticulata 45: 56 Monoculus 60: 26 Monodactylus 43: 72 monodi, Margarya, see M. melanoides m. monodon. Helix 54: 78 monodon, Lamellaxis 49: 25 monodon, Polygyra 40: 116; 42: 35; 43: 67 44: 38, 44, 87, 129; 45: 116; 47: 148; 48: 36; 50: 120; 51: 57; 52: 96; 53: 85 monodon aliciae, Polygyra 48: 36 monodon fraterna, Polygyra 43: 42-4 monodon friersoni, Polygyra 39: 12 monodon peoriensis, Polygyra 40: 116 monodon, Stenotrema 52: 98; 53: 33; 54: 78, 113-5 monodon cinctum, Stenotrema 52: 98 monodonta, Margaritana 36: 47 monodonta, Unio 51: 48 monodontoides, Anculotus 35: 9 monotimeris, Pecten 36: 34 monozona, Rhachis, see R. mageni m. monserratensis, Alvania 55: 121 monstrosa, Adamsiella 48: 64 monstrosa intermedia, Adamsiella 48: 64 Montacuta 40: 24; 46: 76-9; 54: 91 elevata 46: 78-9 percompressa 46: 76 montagnei, Cerithidea 36: 51; 56: 25 montagnei pulchra, Cerithidea 56: 25 montagnei, Cerithium 56: 24 montagnei pulchra, Cerithium 56: 23 montagnei, Potamides 56: 24 montagui, Alvania 53: 30 montagui, Rissoa 53: 30 montana, Limnaea (Stagnicola) 49: 64 montana, Lymnaea 47: 3 montana, Partula 44: 141 montana, Stagnicola 47: 31-2 montanum, Stenotrema, see S.fraternum m. montegoensis, Lucidella, see L. aureola m. montegoensis, Sagda 48: 138; 49: 53 monteplatonis, Suavitas 45: 72 montereyense, Bittium, see B. eschrichtii m. montereyensis, Alvania 53: 31-2 montereyensis, Cingula 50: 48, 50 montereyensis, Cirsotrema 51: 6 montereyensis. Opalia 51: 6-7, pi. 2 montereyensis, Ophiodermella 58: 108 montereyensis, Petaloconchus 37: 42 montereyensis, Selia 37: 42 montereyensis, Yoldia 38: 24 montereyi. Tegula (Chlorostoma) 50: 49 monterona, Euspira 51: 123 monterona, Natica (Euspira) 38: 27 montezuma. Bulimulus 46: 50 montezuma, Humboldtiana 53: 140 montezumi. Aperostoma 36: 15 monticola. Nanina 52: 33 monticularis. Chiton 50: 142 montivaga, Euglandina, see E. delicatula m. montivaga, Omphalina, see O. andrewsae m. mooreana, Partula 37: 110, 114 mooreana, Polygyra 40: 16; 47: 79; 49: 101 mooreanus, Bulimulus. see B. dealbatus m. moorei. Cancellaria (Bivetopsis) 54: 45 moorei pachia, Cancellaria (Bivetopsis) 54: 45 moorei, Pecten 50: 56 Mopalia acuta 58: 102 ciliata 38: 28: 46: 124; 51: 123 ciliata wossnessenskii 47: 102 filosa 58: 102 hindsii 46: 124 lignosa 45: 101: 46: 124 muscosa 38: 28; 46: 124; 47: 102 pedroana 45: 101. pi. 7 plumosa 58: 102 sinuata 38: 28 228 THE NAUTILUS Multilineata wossnessenskii 38: 28 -- see also ciliata w. moracandi contracta, Ancylus 37: 10 moragai, Amaurellina 40: 144 morani, Zaiophancylus 39: 18 moratora. Odostomia (Amaura) 50: 48, 50 mbrchi, Lora 38: 25; 51: 104 morchi, Taranis 57: 107 morchiana, Volutharpa 50: 101 morchianum, Buccinum 38: 28 -- see also B. baeri m. and B. glaciale m. mordax, Pyramidula, see P. alternata m. moreleti, Vaginula 44: 134 moreleti, Veronicella 39: 16; 42: 45-6 moricandi. Ancylus 37: 11-2 nioricandi, Anodonta 36: 9 moricandi, Hebetancylus 37: 10 morickei, Pecten 50: 55-6 morio, Galeodes 52: 19 morio, Hemifusus 60: 19 morio. Trochus 37: 49 mormonum, Epiphragmophora 36: 12, 14 mormonum buttoni, Epiphragmophora 36: 14 mormonum cala, Epiphragmophora 36: 14 mormonum hillebrandi, Epiphragmophora 36: 14 mormonum. Helix 36: 13 mormonum, Monadeivia 46: 83, 85; 51: 33 mormonum hirsuta, Monadenia 40: 125 mormonum loweana, Monadenia 41: 79 Mormula -- subgenus of Turbonilla morongoana, Micrarionta (Eremarionta) 43: 39 morrhuana, Callocardia 49: 133; 56: 142 morrhuana, Callocardia (Agriopoma) 38: 49; 39: 29 morrhuana, Pitar 58: 58 Morrisonella 59: 23 pacifica 59: pi- 3 morseana, Cochlicopa, see C. lubrica m. morsei, Strobilops 35: 91 morsel. Teredo 37: 32 morsei, Turbonilla 50: 91 morsei. Vertigo 50: 98 mortoni, Venus 36: 11 mortenseni, Thyonicola 60: 108 mortoni, Cardium 36: 60; 38: 49 mortoni, Laevicardium 54: 21; 56: 140. 143; 57: 31; 58: 58 mortoni, Quadrula, see Q. pustulosa m. Morula fiscella 58: 122-3 ochrostoma 36: 122; 58: 122 porphyrostoma 36: 122; 58: 122 tubercu'ata 58: 122-3 Morum macgintyi 51: 67 tuberculosum 37: 124; 52: 45 morus. Drupa 36: 122 morus. Ricinula 35: 84 moseri, Cymatosyrinx 52: 28 mosieri. Liguus 38: 60 mossambicensis, Helix 50: 70 mouhoti, Calybium 40: 140 moussoni, Melanoides, see M. tuber- culata m. moussonianum, Choanopoma (Jamaicia) 48: 65 mozambicensis, Helix 50: 70 mozambicensis, Nanina 51: 104 mozleyi, Amnicola, see A. winkleyi m. mua, Atys, see A. semistriata m. mucosus, Pecten 52: 102 Mudalia 46: 40; 54: 65 -- subgenus of Anculosa and Paludina Mulinia corbuloides, see lateralis c. lateralis 36: 11; 38: 50, 84; 49: 132; 56: 142; 58: 59 lateralis corbuloides 54: 21; 58: 59 guadeloupensis 60: 19 pallida 37: 130 mullani, Polygyra 44: 122; 45: 83-4 mullani clappi, Polygyra 44: 122 mullani hendersoni, Polygyra 49: 134 mullani olneyae, Polygyra 43: 126: 48: 47 mullani tuckeri, Polygyra 44: 121. pi. 5 miilleri, Oleacina 55: 53 miilleri, Rectartemon 41: 127 multangula, Muricidea 56: 36 multicarinata, Episcynia 59: 81, pi. 8; 60: 8-9, 11-2 multicarinata, Eutrochatella 48: 11 -- see also E. pulchella m. multicarinata, Vitrinella 59: 81 multicostata, Antigona 37: 129; 57: 5 multicostata, Area 46: 109 multicostata, Navicula 45: 120 multicostatum, Helisoma, see H. cor- pulentum m. multidentata, Paravitrea 42: 88-90; 43: 67; 44: 129; 47: 138; 48: 57-8; 52: 95 multidentata lamellata, Paravitrea (Paravitreops) 42: 88-90 multidentata, Vitrea 35: 43; 39: 80; 42: 88 multifasciata. Cepolis 52: 78; 56: 82 multifasciata, Helix 52: 78 multiformis, Brachidontes 56: 32 multiformis, Brachidontes (Hormomya) 56: 31 multiformis. Mytilus 37: 41; 56: 43 multiformis. Potamides (Batillaria) 49: 2 multilineata. Campeloma 52: 128 multilineata, Goniobasis, see G. vir- ginica m. multilineata. Helix 58: 63 multilineata albina. Helix 38: 33 multilineata, Melania 51: 92 multilineata unicolor. Mesodon 38: 33 multilineata, Polygyra 36: 21; 41: 132-3; 42: 35-6: 43: 67, 118; 44: 38, 44; 49: 119, 124, 126-7; 53: 86 multilineata alba, Polygyra 38: 33; 49: 121 229 Multilineata INDEX TO multilineata algonquinensis, Polygyra 36: 21;.41: 132; 44: 22; 49: 120-4 multilineata altonensis, Polygyra 44: 22; 49: 121, 124, 126-7 multilineata rubra, Polygyra 44: 44, 87; 49: 120 multilineata unicolor, Polygyra 38: 33-4 multilineata wanlessi, Polygyra 41: 132; 44: 22; 49: 121-4 multilineata, Triodopsis 54: 145 multilineatus, Drymaeus 35: 68; 37: 68- 9; 38: 61; 50: 69-70 multilineatus latizonatus, Drymaeus 50: 69-70 multilineatus, Menetus, see M. planu- latus m. multilineolata, Mangelia 45: 124 multiradiata, Lampsilis 36: 101 multispinosus, Murex (Poirieria) 56: 111 multistriata, Cepolis 38: 60; 40: 88; 56: 82 multistriata, Scalaria 51: 49 multistriatum, Campeloma 44: 36; 52: 128 multistriatum, Epitonium 56: 143; 58: 60 multistriatus, Pecten (Chlamys) 50: 55 multisulcata. Castalia 57: 14 multivolvis, Bostryx (Geoceras) 57: 124 multivolvis, Planorbis 50: 63 mumfordi, Lamellidea 47: 62 mumia, Cerion 38: 60; 40: 89 mumia chrysalis, Cerion 38: 60 mumia fastigiatum, Cerion 40: 88 mumiola, Cerion 38: 60; 40: 89 munda, Tritonalia, see T. lurida m. mundum, Zaphysema 49: 54 munita, Gastrocopta 46: 69 Murdochia 39: 69 Murex 44: 26; 45: 81; 46: 111; 48: 4; 49: 74; 52: 43; 54: 45; 56: 20; 60: 27, 89 adustus 60: 55 anibustus 37: 46 anniae 54: 44-5 anus 37: 46 aruanus 37: 46: 52: 18-9 babilonicus 37: 46 babylonius 37: 46 bezoar 37: 46 bicolor 43: 135; 46: 110, 114; 48: 4; 52: 45; 55: 114 brassica 52: 45 cabritii 54: 45 cabrittii 56: 13 capitellum 37: 46 carbunculus 37: 46 carica 52: 17-8. 20 carnicolor 59: 142 cinctus 37: 47 citrinus. see recurvirostris c. convoluta 37: 47 corniculatus 37: 47 curvirostris 54: 45 decollatus 56: 20 delator 37: 47 delicatus, see recurvirostris d. destortus 37: 47 dolarium 37: 47 (Murexsul) ednae 54: 43 elenensis 52: 45 erinaceus 60: 37 erosus 45: 77 festiva 36: 34; 47: 52: 54: 44 flavescens 54: 20 fricki 58: 100 fulvescens 43: 35; 44: 30; 58: 61 fuscatus 37: 48 fusus 37: 48 (Jaton) gaza 54: 44 (Triremis) gemma 37: 42 glyptus 51: 89 granulatus 37: 48 haustor 37: 48 hexagonus oxytata 51: 89 hippocastaneus 52: 45 histrix 37: 48 hystrix 37: 48 islandicus 37: 48 janthina 37: 49 lappa 43: 138 lignarius 37: 49 macgintyi 51 : 88 messorius 54: 45 mexicana, see palmarosae m. minimus 56: 22, 29 (Poirieria) multispinosus 56: 111 nigrescens 37: 124 -- see also recur- virostris n. nigritus 48: 4; 52: 45; 55: 114; 57: 4, pi. 4 nuttingi 59: 142 obeliscus 45: 77-8 octogonos 59: 143 oxycantha 45: 77; 52: 45 oxytata, see hexagonus o. palmarosae mexicana 46: 112 pazi 59: 142 perversibiliformis 37: 50 perversibilis 37: 50 perversus 37: 50; 52: 20; 53: 23, 25-6, pi. 7 pileare 37: 50 pomum 37: 55; 38: 61; 39: 85; 58: 39, 61 princeps 52: 45; 57: 4 radix 43: 135: 46: 110 rameus 37: 50 ramulosus 37: 51 ranula 37: 51 rapacia 37: 51 recurvirostris 54: 45 recurvirostris citrinus 54: 45 recurvirostris delicatus 54: 45 recurviorstris nigrescens 54: 45 lecurvirostris rubidus 54: 45 230 THE NAUTILUS Mycetopoda regius 45: 77, 79; 52: 45 rubidus, see recurvirostris r. rufus 37: 55; 51: 89; 58: 39 (Chicoreus) salleaiius 39: 85 santarosana 55: 141 scrobilator 37: 51 spirllloides 37: 51 spirillus 37: 51 trialatus 45: 77 trunculus 45: 108 Murexsul 59 : 143 -- subgenus of Murex muricata. Acanthina 37: 121, 124; 52: 44 muricata. Pinna 37: 55; 38: 93-4 muricata, Turbonilla (Chemnitzia) 55: 122 muricatum, Busycon 52: 16-7 muricatum, Cardium 49: 118, 133, 54: 21; 60: 19 muricatum, Trachycardium 58: 58 muricatum, Vasum 35: 120-1; 52: 28; 53: 82 muricatus, Tectarius 35: 120-1; 38: 62; 55: 33 Muricidea floridana 37: 54; 39: 86; 41: 28 hexagona 38: 61 mansfieldi 53: 83, pi. 10 multangula 56: 36 ostrearum 39: 86: 56: 35 muriciformis, Eupleura 37: 124 muriei, Anabathron 52: 110, pi. 8 murina, Margaritana 36: 43 murinum. Ptychobranchus 36: 43 murinus, Unio 36: 43-4 Murithais 45: 108 murrayensis, Goniobasis 38: 136 murrea, Achatina 45: 106 murreus, Liguus, see L. fasciatus m. mus, Conus 38: 61; 50: 103-4; 53: 38 mus, Cypraea 59: 113 muscae, Ancilla 39: 104 muscaria, Terebra 60: 56 muscarius, Ischnochiton 52: 45 muscarum, Cerithium 37: 54; 38: 60; 51: 92 muscicola. Helix 35: 49 muscorum. Pupilla 36: 65; 40: 16, 77, 112; 43: 134; 47: 2, 8, 139; 50: 10, 18; 53: 77; 60: 25 muscorum sinistra. Pupilla 60: 24-5 muscosa. Mopalia 38: 28; 46: 124; 47: 102 muscosus, Pecten (Chlamys) 52: 102 Musculium 35: 104-5, 107-8, 110-1, 113-4, 117; 37: 80: 40: 29, 76; 41: 54: 42: 27; 48: 110; 54: 9, 112; 57: 94-5; 58: 49 angustatum, see truncatum a. brochonianum 40: 29 contractum 58: 49 elevatum 58: 50 engbergi 48: 48 jayense 38: 10 lacustre 40: 29; 42: 27 mearnsi 51 : 54 pallidum 40: 30 partumeium 37: 30; 53: 78; 59: 87 raymondi 37: 78; 40: 30 -- see also ryckholti r. rosaceum 38: 10; 40: 50-1; 42: 54; 57: 93 ryckholti 37: 78; 40: 29-30, 62 ryckholti raymondi 48: 48 rykoltii 37: 97 securis 37: 30; 39: 124; 40: 50-1; 43: 119; 54: 144"; 57: 46, 93 steinii 42: 27 subtransversum 59: 21 transversum 35: 117; 39: 12; 40: 17, 30, 62; 42: 66; 52: 15; 54: 9; 58: 50 truncatum 40: 29, 51,52; 42: 96; 43: 42, 119; 56: 52: 57: 93 truncatum angustatum 40: 50 uintaense 56: 53 Musculus corrugatus 35: 31 discors 51: 101 lateralis 49: 117 niger 38: 24 nigra 40: 23 oahuus 52: 118 substriatus 35: 31; 40: 23 vernicosus 38: 24 musculus, Cypraea 37: 49 musicola, Cepolis 52: 144; 56: 82, 87, pi. 9 musicola, Cepolis (Euclastaria) 56: 85 musiva, Cyclostoma 55: 42-3 musiva, Japonia 55: pi. 3 muskusi, Tudora 37: 93 mustelina, Achatinella 58: 36 mustelina, Nerita 37: 49 mutabilis. Area 52: 44 mutabilis. Modiolus 45: 74 mutator, Ashmunella, see A. tetrodon m. mutatum, Cerithium 55: 2 Mutela 39: 33 mutica, Cumingia 37: 129 mutica, Oliva 36: 11 mutica, Olivella 37: 54; 48: 71; 58: 62 muticum, Chondropoma 48: 66 Mya 36: 141; 54: 4-5; 60: 108 anatina 37: 46 arenaria 36: 28-9, 13C; 38: 2-3, 50, 89; 39: 29; 40: 25, 77; 41: 12, 15:43:50; 45: 138; 51: 9; 56: 61, 142; 57: 67, 69; 58: 22-4, 59, 137-41; 59: 97; 60: 108 inaequivalvis 40: 43 intermedia 38: 25; 47: 102 plana 37: 50 purpurea 40: 43 syrmatophora 37: 51 truncata 38: 25; 40: 25, 77; 47: 102; 54: 2-5; 60: 108 Myadesma 43: 24 pacifica 43: 24 myalls, Yoldia 38: 24; 40: 22 myersi, Polygyra 43: 107 Mycetopoda 36: 8; 39: 116 bolivari 39: 116 231 Mycetopoda INDEX TO falcata 39: 116 longinus 36: 9 siliquosa 36: 8; 53: 54 Mycetopus subsinuatus 36: 8-9 Mychostoma 40: 70 -- subgenus of Brachy- podella Myophoria 50: 55 myopsis, Thracia 40: 23 myosotis, Alexia 35: 87; 56: 143 Myrina 54: 91 myristicata, Nassa 46: 71 Myrsus 54: 141-2; 55: 64-5 Myrtaea compressa 49: 118 fabula 60: 57 undata 58: 99 Mytilimeria nuttallii 43: 51 Mytilopsls leucophaeata 50: 143; 54: 25 Mytilus 39: 26; 41: 13, 16-7; 54: 23, 90; 57: 51; 58: 120 achatinus 60: 19 adamsianus 52: 45; 56: 31, 43 californianus 37: 41; 38: 24; 41: 99, 101; 42: 100; 43: 50; 47: 102; 53: 22; 54: 91; 56: 30-2 citrinus 58: 39 clava 37: 47 crebristriatus 37: 3; 40: 81 dunkeri 49: 2 edulis 36: 108; 38: 3, 24, 49; 40: 23, 77; 41: 10, 15, 99; 43: 50, 132; 47: 102; 51: 9; 54: 2, 5, 127; 56: 60, 141- 2; 57: 8, 69, 100; 58: 22, 138-41; 60: 75 edulis pellucidus 38: 49; 54: 127; 56: 60, 141 exustus 37: 55; 39: 83; 49: 117; 56: 31; 58: 57 hamatus 51: 92 magellanicus 56: 32 modiolus 45: 33; 54: 91 multiformis 37: 41; 56: 43 palliopunctatus 52: 45 pellucidus, see edulis p. purpureus 37: 50 recurvus 38: 94; 43: 35; 54: 21; 58: 57 stearnsii 56: 31, 43 Myurella 37: 61-2 (Myurellisca) duplicatoides 37: 64 (Myurellina) ornata 37: 63 Myurellina 37: 62-3 -- subgenus of Myurella Myurellisca 37: 62-3 -- subgenus of Myurella and Terebra myuros, Terebra 37: 62 Naesiotus 43: 37-8; 53: 111, 113-4 ambatensis, see auitensis a. antisana, see quitensis a. irregularis, see quitensis i. jacksoni, see quitensis j. orinus, see quitensis o. quitensis 53: 112,114-5, 117, pi. 13; 55: 103 quitensis ambatensis 53: 117-8, pi. 13 quitensis antisana 55: 103 quitensis irregularis 53: 115 quitensis jacksoni 53: 116-7, pi. 13 quitensis orinus 53: 116, 118, pi. 13 quitensis vermiculatus 53: 117-8, pi. 13 vermiculatus, see quitensis v. naiadarum, Melania 57: 21 nana. Cassis 41: 72 nana, Physa 43: 92 nanaimoensis, Acanthodoris 39: 50, 100 Nanina 50: 30, 70, 139 -- see also Naninia citrina 51: 104 crossei 40: 134 excrescens 42: 141 monticola 52: 33 mozambicensis 51: 104 schmeltziana 50: 70 stuartiae 51: 104 Naninia 50: 30; 51: 104 -- see also Nanina citrina 50: 30 stuartiae 50: 30 nanna, Paludestrina 47: 28 Nannocassis 41: 72 nannodes, Carychium 49: 115; 53: 47 nantahala, Polygyra (Triodopsis) 46: 17-8, 58, pi. 2 nanus, Conus 55: 2 -- see also C. ceylonensis n. nanus, Somatogyrus 58: 7-8 nanus, Strombus, see S. raninus n. napella, Melania 38: 44 napoensis, Anodonta 45: 17 napoensis, Anodontites (Ruganodontites) 45: 17 napoensis, Glabaris 45: 17 napoensis, Wanga 57: 21 nashotahensis, Lymnaea 36: 23 naso, Episcynia 59: 81; 60: 10-1 Nassa 45: 108; 46: 49; 56: 106 acuta 51: 93 albescens 60: 56 bailyi 46: 51; 47: pi. 8 (Phrontis) bilobata 58: 100 brunneostoma 46: 52 hirta 59: 107 (lone) immersa 58: 100 lencops, see moesta 1. leucops 46: 51 luteostoma 46: 51 moesta 46: 52 moesta lencops 47: pi- 8 myristicata 46: 71 obsoleta 35: 88; 41: 12, 14-7; 56: 59; 58: 22 obtusata 60: 56 sertum 55: 2 trivittata 35: 88; 41: 15-6; 56: 59 unicincta 51: 93 232 THE NAUTILUS Nemoralis (Phrontis) venusta 58: 100 verbeeki 59: 107 vibex 51: 93 Nassarina glypta 50: 21 proctorae 49: 139; 50: 21 Nassarius 45: 108; 52: 28; 60: 90 ambigua 58: 62 arcularia 45: 108 bailyi 52: 45 (Schlzopyga) cooperi 50: 47 corpulenta 52: 45 (Schizopyga) fossatus 50: 47; 53: 22 obsoletus 45: 138; 56: 143; 58: 62; 59: 97 frivittata 54: 127; 56: 143; 58: 62, 138, 140-1 versicolor 52: 45; 55: 122 vibex 56: 141; 58: 62 nassatula, Peristernia 60: 56 nassoide, Thericium 36: 123 nassula. Goniobasis 36: 116; 38: 135; 40: 9, 11; 42: 32 nassula, Phacoides (Lucinisca) 39: 83; 49: 117 nasuta, Eurynia 44: 47 nasuta, Ligumia 49: 80-1; 59: 110 nasuta. Macoma 36: 33; 38: 25, 70; 43: 50; 44: 92-3 nasuta, Mactra 38: 98, 100, 102 nasuta, Standella 38: 99 nasutus, Unio 38: 29 natalensis, Conulinus 46: 102 natalensis, Lymnaea 41: 141; 52: 142 natalensis, Unio, see U. caffer n. natalis, Reynellona 49: 93 natans, Pecten 47: 62-3 natensoni. Polydontes 52: 37-8, 40-1, pi. 3 natensoni maurus, Polydontes 52: 38, 40, pi. 3 Natica 36: 51; 46: 36, 45, 47, 103-4; 54: 138; 55: 3, 125 (Cryptonatica) aleutica 38: 26; 47: 102 broderipiana 37: 125 canrena 37: 56; 39: 86: 46: 36, 45 catenatus 52: 45 clausa 35: 32: 39: 132 duplicata 41: 10, 15 elenae 37: 125 heros 35: 87; 41: 10, 15 immaculata 35: 88 marochiensis 36: 122; 58: 122 (Euspira) monterona 38: 27 (Euspira) pallida 38: 27 pusilla 56: 140-1; 58: 60 (Stigmaulax) sulcata 54: 71; 55: 45 triseriata 35: 87 unifasciata 37: 125 natoriensis, Pecten 50: 25 naufragum, Siphonaria 38: 61, 135 nautileus, Planorbis (Armiger) 38: 2 Nautilus 38: 91, 112; 42: 71; 44: 141 ammonoides 37: 46 beccarii 37: 46 pompilius 36: 72 navalis. Teredo 36: 67-8, 140; 37: 31-2; 42: 108; 56: 61, 143; 58: 60 Navicella cumingiana 49: 70 Navicula 45: 118-20 multicostata 45: 120 ostrearia 45: 119 navicula, Donax 37: 82-3 navisa, Odostoniia (Ividella) 37: 42 nazanensis, Lora 51: 122 neara lessonii, Callistochiton 58: 101 Neaeromya 49: 34 nebrascensis, Lioplax 50: 127 nebulosa, Avicula 40: 81 nebulosa, Micromya 37: 101-3, 105; 40: 105 nebulosa, Oliva, see O, emicator n. nebulosa, Pinctada 52: 118 nebulosum, Calliostoma, see C. canali- culatum n. nebulosum, Cerithium, see C. adustum n. nebulosum, Fartulum 57: 32 nebulosus, Conus 53: 38 nebulosus, Unio 37: 102 neckliaensis, Placostylus 42: 74 necrodes. Varicella (Varicellaria) 48: 85; 49: 22, 26 neebiana, Alcadia 54: 70 neglecta, Cypraea 40: 127, 129; 58: 132, 144 neglecta reductesignata, Cypraea 40: 126 neglecta Nerita 58: 122 neglecta, Theodoxus 60: 55 neglectum. Pisidium 40: 52 negligens. Spiraxis, see S. irregularis n. negrilense. Choanopoma 48: pi. 2 negrilense. Choanopoma (Colobostylus) 48: 61, 65 negrilensis, Cepolis, see C. conspersula n. negrosensis, Amphidromus, see A. versicolor n. neisleri, Amblema 38: 105 Nekewis 40: 144 nelsoni, Poecilozonites 38: 7 nelsoni callosus, Poecilozonites 48: 34 nematoraphe, Partula 44: 141 Nematura 54: 66 Nematurella 36: 140 euzona 36: 140 nemo, Alvania 53: 31 nemoralis, Cepaea 51: 138; 59: 44-8; 60: 2, 4 nemoralis. Helix 36: 67, 108; 38: 141: 39: 73-4; 40: 93-4; 41: 47; 42: 42; 43: 144: 44: 13, 71; 45: 27; 47: 96; 48: 31. 142; 49: 100; 50: 15; 51: 69, 138; 52: 96-7, 108; 55: 31 nemoralis castanea, Helix 44: 14 233 Nemoralis INDEX TO nemoralis libellula, Helix 40: 93; 41: 47; 44: 14 nemoralis rubella, Helix 40: 93-4; 41: 48; 44: 14; 50: 15 nemoraloides, Cepolis (Dialeuca) 49: 56 nemoraloides, Dialeuca 56: 82, 90-1, pi. 11 nemorensis, Varicella 49: 23, 26; 55: 26 Nenia 35: 93; 57: 59; 58: 79 -- also as subgenus of Clausilia angrandi urubambensis 58: 83, pi. 3 acobambensis 58: 80-2, pi. 3 belahubbardi 35: 93, pi. 2 boettgeri, see quadrata b. bryantwalkeri 35: 95, pi. 2 eka 58: 82-3, pi. 3 filocostulata 35: 95; 58: 82 flachi 35: 95 flachi tingamariae 35: 94 jolyi 58: 82 juninensis 57: 61, pi. 7 minuscula 58: 83, pi. 3 pampasensis 35: 94; 58: 80 peruana 35: 95 quadrata 58: 81 quadrata boettgeri 58: 81, pi. 3 slosarskii 35: 95 tingamariae 35: pi. 2 -- see also flachi t. urubambensis, see angrandi u. weyrauchi 58: 82, pi. 3 Neobankia 35: 61 -- subgenus of Bankia Neocyclotus 36: 14-6; 56: 135, 137-8 jamaicensis 56: 135-6 neohexagonum, Dentalium 36: 34 Neomenia 56: 58 Neomiodon 59: 108 Neopetraeus 57: 88 atahualpa 57: 88 tessellatus 57: 88 weyrauchi 57: 88, pi. 9 Neopisidium 52: 83 Neoplanorbis 58: 2, 14 carinatus 58: 14 smithi 58: 15 tantillus 58: 14 umbilicatus 58: 15 Neopupina36: 15-6; 56: 107; 57: 30 neoshense, Sphaerium, see S. notatum n. Neosubulina 39: 106; 48: 84; 58: 85-6 harteri 58: 85 harterti 58: 86 scopulorum 58: 86 Neothauma 38: 110; 56: 124 Neoteredo -- subgenus of Teredo Nephronaias elvae 38: 52, pi. 1; 43: 129 -- also as subgenus of Unio lempensis 40: 106 reticulata 38: 52; 43: 129 sapotalensis 35: 25 Neptunea 36: 35; 45: 108; 47: 91; 54: 125-6, 56: 69 antiqua 54: 125-6; 56: 69 clathrus 54: 125 contraria 56: 69 curvirostris 40: 144 decemcostata 56: 59; 57: 67 (Sulcosipho) eatoni 47: 92 (Sulcosipho) magna 47: 93 (Sulcosipho) stantoni 47: 93 stonei 54: 128 tenuisculpta 38: 25 Neripteron 50: 111-2 Nerita 35: 83, 119-20; 36: 51; 38: 56-7; 40: 80; 45: 80; 50: 109-13; 53: 36; 54: 24; 56: 35 alticola 46: 93; 50: 110-13; 54: 67 arausiaca 37: 46 arausiaca flava 37: 46 atra 37: 46 bernhardi 46: 45 cancrena 37: 46 canrena 37: 46 caput-serpentis 37: 46 exuvia 37: 48 flava, see arausiaca f. gibber 37: 48 hepatica, see syncera h. indigo 37: 48 lutea 37: 49 mammillana 37: 49 mustelina 37: 49 neglecta 58: 122 oliva 37: 50 ornata 36: 51; 52: 45 -- see also scabricostata o. peleronta 35: 121; 38: 61 peloronta 54: 67 picea 35: 83-4; 37: 3; 55: 2; 58: 122-3 plicata 60: 55 polita 35: 84; 37: 50; 58: 122; 60: 55 praecognita 35: 121 punctulata 54: 24-7 pupa 50: 110-3 scabricosta 56: 34 scabricosta ornata 46: 45 syncera hepatica 54: 119 tesselata 35: 121 ; 38: 61 ; 39: 86; 54: 22, 67 tristis 52: 54; 54: 22, 67 urceus 41: 63 versicolor 35: 121; 38: 61; 54: 22, 67 virginea 37: 52 vitellus 37: 52 neritella. Helicina 48: 11 neritella diplocheila, Helicina 48: 11 neritella reducta, Helicina 48: 11 neriteum, Buccinum 37: 49 neritiformis, Melanopsis 35: 11; 43: 14 Neritilia 50: 110, 113; 51: 40; 54: 26 succinea 47: 50; 50: 109; 51: 40; 54: 24-6, 66 234 THE NAUTILUS Nigra Neritina 38: 56-7; 40: 39, 80; 47: 50; 49: 74; 50: 44-5, 109-13; 51: 40-2; 53: 36; 58: 48 alticola 51: 40-1 brevispina 49: 79 cornea 50: 44-5 diadema 49: 79 (Smaragdia) floridana 51: 66 fluviatilis 38: 3 granosa 40: 80 latissima 46: 45 lineolata 45: 68 macgillivrayi 50: 45 petiti 50: 45 pilsbryi 46: 45 porcata 50: 45 pulligera 49: 79 punctulata 47: 50; 51: 40-2, pi. 5; 52: 45; 54: 66 pupa 38: 61; 53: 68 reclivata 45: 67-8; 50: 111 reclivata sphaera 45: 67; pi. 3 showalteri 35: 136 sphaera, see reclivata s. subsulcata 50: 44-5 tenebricosta 54: 25 vespertina 50: 111 virginea 38: 61; 45:68; 46: 93; 47: 50- 1; 50: 112; 51: 40-2, pi. 5; 52: 51, 53-4; 54: 21-2, 66, 98, 103-6 viridis 38: 61; 51: 67 zebra 45: 68 Neritoclithon 50: 111 Neritodryas 50: 110-1, 113 neritoidea, Coralliophila 55: 2 neritoides, Coralliophila 36: 121; 60: 56 Neritona 50: 111 nesaeum, Teinostoma 59: 2, 5, pi. 1 nesiotes, Cadulus 36: 34 nesiotica, Hirasea 45: 30 nesiotica liobasis, Hirasea 45: 30 nesioticum, Cerithium 58: 122 nesiotis, Vaginula 39: 17 Nesocoptis 55: 70 Nesophila 38: 79, 83 capillata 38: 82 Nesopupa 36: 63-4; 40: 133: 42: 70 nevadensis, Parapholyx, see P. effusa n. nevadensis, Pyrgulopsis 41: 141; 43: 103; 48: 15: 53: 137; 60: 77, 148, pi. 7 Neverita -- also as subgenus of Polinices and Polynices alta 42: 113. pi. 6 -- s.ee also reclusi- ana a. duplicata 42: 111 glauca 37: 125 imperforata, see reclusiana i. reclusiana 42: 109. 111-3, pi. 6 -- see also recluziana and subsp. reclusiana alta 42: 112-3 reclusiana imperforata 42: 111, 113 recluziana 42: 109 -- see also re- clusiana and subsp. recluziana alta 42: 110-1 recluziana imperforata 42: 110-2, pi. 6 nevilli, Lobiger 55: 39-40 nevilliana, Leonardia 42: 47 newberryana. Helix 50: 99, 139 newberryi, Carinifex 41: 119, 141; 44: 77-9; 44: 109-11, 113; 45: 133, pi. 11; 47: 27; 52: 35 newberryi subrotunda, Carinifex 45: 139 newberryi, Goniobasis 48: 95; 49: 66 newberryi, Helisoma (Carinifex) 44: 77 newberryi, Lanx 38: 74-5 newcombei, Turbonilla (Pyrgolampros) 51: 55 newcombi, Ischnochiton 58: 101 newcombi, Micrarionta 37: 107 newcombi, Peristernia 36: 122 Newcombia 42: 71 newcombiana, Fadyenia 48: 62 newcombiana, Pitaria 37: 41 newfoundlandensis, Stagnicola, see S. palustris n. nexus, Lepidopleurus 49: 42 nexus, Unio 51: 93 niagarensis, Melania 38: 44 niagarensis, Physa 36: 25 Nicaniella 59: 108 nicaraguae, Anodontites 38: 54 nicaraguanus, Lyrodes, see L. coronatus n. nicholsoni, Circulus 60: 10-12 nicholsoni, Episcynia 60: 10-1 nicholsoni, Pristiloma 43: 96, 100, 121- 23, pi. 5 nickliniana, Anculosa, see A. carinata n. nickliniana, Bythinella 42: 55 nickliniana, Epiphragmophora 35: 35 nickliniana, Fontigens 53: 47 nickliniana, Goniobasis 41: 60; 60: 5-6 nickliniana. Helix 46: 11-2; 50: 98-9 nickliniana, Helminthoglypta 54: 125; 57: 71 nickliniana anachoreta, Helminthoglypta 40: 124-5 nickliniana ramentosa, Helminthoglypta 54: 141 nickliniana, Melania 41: 60 nickliniana, Paludina 47: 12 nickliniana, Stimpsonia 46: 36 nicoleti, Streptostyla (Eustreptostyla) 40: 64; 41: 21; 55: 53, 59 nicoleti atypica, Streptostyla (Eustrepto- styla) 55: 55-6, 59 nicoleti subovata, Streptostyla 55: 56 nicolinsianum, Cepolis, see C. cepa n. niger, Hesperarion 59: 36 niger, Musculus 38: 24 nigra, Limapontia 36: 135 nigra, Lithophaga 49: 117; 54: 39-40 nigra, Melanopsis, see M. doriae n. 235 Nigra INDEX TO nigra, Modiolaria 56: 60 nigra, Musculus 40: 23 nigra, Ochthephila, see O. attrita n. nigrescens, Anculotus 35: 9 nigrescens, Anoma 49: 57 nigrescens leucostoma, Anoma 49: 57 nigrescens levior, Anoma 49: 21, pi. 2 nigrescens rufilabris, Anoma 49: 57 nigrescens, Cerithium 56: 22 nigrescens, Cerithium, see C. minimum n. nigrescens, Murex 37: 124 -- see also M. recurvirostris n. nigricans, Anachis 45: 143; 52: 44 nigricans, Onchidium 51: 86 nigricans, Oncidiella 51: 86-7 nigricans, Streptostyla 41: 21; 55: 53 nigrina, Goniobasis 48: 15, 134; 49: 66; 50: 84 nigrina, Micromya, see M. vibex n. nigrinum, Cerithium 56: 23, 29 nigrita, Synaptocochlea 53: 20, pi. 6 nigritellus, Planaxis 52: 46 nigritus, Murex 48: 4; 52: 45; 55: 114; 57: 4, pi. 4 nigrocincta, Fissurella 52: 45 nigrocincta, Triphora 46: 119 -- see also T. perversa n. nigrocinctum, Cerithium 46: 119 nigromaculatus, Limax, see L. flavus n. nigromontanus, Bulimulus 40: 5 nigromontanus, Discus, see D. bryanti n. nigropunctata, Cypraea 37: 125 nigropunctata, Oopelta 48: 143 nigropunctata, Tonicia 58: 102 niloticus, Trochus 37: 49; 60: 55 nimapuna, Anguispira 45: 82-3, 87, pi. 5 nimbosa, Macrocallista 58: 58; 60: 33 ningkuoensis, Viviparus 59: 66 Niso diomedae 36: 122 interrupta 52: 28 nitens, Chondropoma (Parachondria) 48: 66 nitens, Mangelia, see M. variegata n. nitida, Alcadia 40: 88 nitida, Proserpina 36: 84; 47: 151; 48: 63 nitida planulata, Proserpina 48: 63 nitida, Tellina 59: 35 nitida, Terebra (Punctoterebra) 37: 63 Nitidella -- also as subgenus of Columbella nitidula 53: 38 Nitidiscala 44: 104; 45: 113 Nitidoscala 45: 70 -- subgenus of Epitonium nitidula, Nitidella 53: 38 nitidula, Oliva 48: 70-1 nitidulus. Pupoides, see P. marginatus n. nitidum, Coecuni 46: 122 nitidum, Meioceras 46: 122-3 nitidum. Sphaerium 52: 59, 79-80. 82, 84, pi. 6 nitidus, Faunus 49: 77-8 nitidus, Planorbis 41: 41 nitidus, Spiraxis 53: 14, 91-2, 94 nitidus minor, Spiraxis 53: 51 nitidus persulcatus, Spiraxis (Volutaxis) 53: 51, 91, pi. 11 nitidus, Zonitoides 38: 10; 40: 58; 42: 59: 43: 140; 44: 45; 47: 8; 48: 58; 50: 61; 51: 140; 52: 95; 53: 86; 56: 54; 58: 25-6; 60: 94 Nitocris 46: 40 ebena 46: 40 nivea, Crepidula 44: 93; 50: 48 nivea, Olivella 39: 85 nivea, Pyramidella 46: 118 nivea, Turbonilla 56: 144 niveus, Obeliscus 46: 118 nivosa, Cryptaxis 35: 102 nivosa, Oliva 47: 143 nivosus. Turbo 60: 55 noachina, Cemoria 35: 86 noae, Area 59: 66 -- see also A. cymbula n. nobile, Pleurocera 56: 132 nobile, Sphaerium 48: 48 nobiliana, Marginella 56: 114, 123, pi. 14 nobilior, Urocoptis 49: 57 nobilis, Anisodoris 36: 90, pi. 2 nobilis, Discosolis 59: 9 nobilis, Eutrochatella 48: 63 nobilis retreatensis, Eutrochatella 48: 11, 63, pi. 2 nobilis, Liguus, see L. fasciatus n. nobilis, Lora 40: 21 nobilis, Omalaxis 48: 129 nobilis, Pleurodonte 49: 54 nobilis, Pseudomalaxis 48: 129; 59: 9 nobilis, Quadrula 39: 90 nobilis, Streptaxis 41: 127 nobilis, Tritogonia 36: 47 nobilis, Triton 53: 38 nobilis, Unio 39: 90 nodae, Eutrochatella 40: 89 nodiferus, Unio 39: 89 Nodipecten 49: 28 Nodiscala 45: 113; 51: 7 -- subgenus of Epitonium Noditerebra 37: 61, 63 nodosa, Drupa 56: 77 nodosa, Fissurella 35: 121; 38: 60 nodosus, Pecten 38: 94; 58: 57 nodulare, Terebra 36: 123 Nodularia croninae 36: 5, pi. 1 nodulata, Quadrula 36: 47 nodulatum, Rhytidopoma 40: 90 nodulifera, Urocoptis 40: 91 noduliferus, Pecten 49: 27-8 nodulosa, Cardita 58: 118 nodulosa, Echinella 35: 121; 38: 60 nodulosa, Venericardia (Cyclocardia) 58: 118 nodulosaum Cerithium 60: 55 nodulosum, Sistrum 35: 121; 38: 61 Nodulus -- subgenus of Cingula 236 THE NAUTILUS Nuttallii nodulus. Helix 37: 49 Noetia 44: 103 -- also as subgenus of Area ponderosa 54: 21; 56: 140; 57: 31; 58: 56 Noetica 40: 144 gabbi 40: 144 noetlingi, Pecten, see P. prototranquebari- cus n. nonuranus, Modiolus 49: 16, pi. 1 nordenskioldi, Pisidium 52: 59, 81 normalis, Polygyra 46: 42, 58-9, 91 normalis, Siphonaria 37: 3 normalis, Streptaxis, see S. glaber n. normalis, Valvata, see V. bicarinata n. Norrissia norrisii 37: 43 norrisii, Norrissia 37: 43 nortensis, Polygyra, see P. loricata n. Northia northiae 37: 122-3 northiae, Northia 37: 122-3 norvegica turgida, Panomya 51: 124 notabilis, Adrana 53: 16, pi. 6 notata, Stenotrema 58: 128 notata, Triopodsis 55: 13; 57: 137; 58: 26; 59: 89 notata, Venus, see V. mercenaria n. notatum, Sphaerium 41: 55, 57; 57: 95 notatum gibbosum, Sphaerium 41: 56-7; 57: 95 notatum glabrum, Sphaerium 57: 95 notatum neoshense, Sphaerium 41: 56 notatior, Poteria 48: 86 notosyriacus, Pecten 50: 58 Noumea 42: 108 novacula, Ampelita 56: 49 novacula, Solen 42: 65 novacularis, Solen 42: 65-6 novae-spei, Poteria 48: 87 novangilae, Venericardia 40: 24 novangliae, Sphaerium, see S. striatinuni n. novangliae. Teredo 37: 32 noveboracense, Pisidium 35: 113; 53: 78; 58: 51; 59: 25, 28-9 novohibernica, Papuina, see P. lambei n. nov-eboraci, Lampsilis, see L. iris n. novus-saltus, Poteria, see P. jamaicensis n. nubila, Urocoptis 40: 91 nucalis, Lioplacodes 44: 35 nucea, Aligena 55:>49-51, pi. 4 nucea, Voluta 37: 49 Nucella -- subgenus of Thais nuciformis, Corbula 55: 121 nuclea, Lithasia 41: 58 Nuclearia limacina 58: 144 nucleus 57: 84-5; 58: 132. 144 staphylaea 57: 83 nucleata. Helix 40: 30 nucleola, Amastra 38: 82 nucleola. Pleurodonte 51: 27 nucleus. Corbula 40: 42 nucleus. Cypraea 50: 80; 51: 3; 52: 104 nucleus, Nuclearia 57: 84-5; 58: 132. 144 nucleus, Ostrea 37: 50; 38: 115 nucleus. Pecten 38: 113, 115; 49: 117 nucleus, Planaxis 35: 121; 38: 61 nucleus, Pustularia 49: 137 Nucula 36: 34; 38: 51; 45: 127; 54: 5 concentrica 51: 48 delphinodonta 40: 22 exigua 37: 126 laevis 51: 48 limatula 51: 48 proxima 56: 140; 58: 56 proxima truncula 35: 31; 56: 143 (Adrana) suprema 48: 117 tenuis 35: 31; 38: 24; 40: 22 truncula, see proxima t. Nuculana 54: 5 acuta 54: 20; 58: 56 arcuata 48: 118, pi. 6 burchi 59: 104 egregia 53: 17 electa 53: 17 elongata 48: 117; 53: 18 gloriosa 53: 17 minuta 54: 3 suprema 48: pi. 6 taphria 44: 92 tellinoides 53: 17 (Adrana) tonosiana 48: 117, pi. 6 nuda, Helicina 41: 22 nudum, Cerion 49: 50 nudus, Limax 39: 13 numellata. Vertigo 38: 7 nummarius, Crepidula 38: 26 nummarius perforans, Crepidula 56: 42 nummerius, Crepidula (lanicus) 37: 43 nummus, Helicodiscus 47: 16-7; 58: 69 nummus, Pseudohyalina 38: 42; 40: 17 nupera, Melania 51: 48 nura, Hua, see H. protea n. nussatella, Conus 36: 121; 55:' 2 nutris. Helix 50: 134 nuttalli, Lanx 38: 74-5 nuttalli capax, Schizothaerus 40: 78; 44: 69; 45: 32-3 nuttalli maxima. Schizothaerus 40: 78; 44: 69; 45: 32-3 nuttalliana, Anodonta 41: 76 nuttalliana. Fluminicola 53: 124-5 nuttalliana. Helix 36: 13-4; 50: 99 nuttalliana, Lymnaea, see L. palustris n. nuttalliana, Stagnicola 48: 140 -- see also S. palustris n. nuttalliana, Succinea 48: 47 nuttallii. Cryptodon 38: 98. 102 nuttallii, Lucinisca 36: 34; 53: 22 nuttalli, Mytilimeria 43: 51 nuttallii, Phacoides 44: 92 nuttallii. Physa 39: 71; 48: 47: 49: 32, 85-7 nuttallii. Purpura 37: 42 nuttallii. Saxidomus 44: 92 nuttallii, Schizothaerus 38: 102; 43: 50; 44: 92: 45: 32; 56: 42 237 Nuttallii INDEX TO nuttallii bighopensis, Schizothaerus 45: 33 nuttallii, Siliqua, see S. patula n. Nuttallina 48: &9 californica 47: 53 fluxa 48: 89 scabra 48: 89 nuttingi, Murex 59: 142 nux, Area (Scapharca) 37: 127; 55: 121 nux, Conus 52: 45; 57: 4 nylanderi, Sphaerium 57: 95 nylanderi, Valvata, see V. sincera n. nymphaca, Crassispira 46: 110; 47: 47 nyongensis, Goodrichia 45: 71 nyongensis, Potadoma 42: 144; 45: 71 nyritodys, Voluta 37: 50 oahuensis, Pyramidella 36: 122 oahuensis, Terebra, see T. lanceata o. oahuus, Musculus 52: 118 Obba margina^a 57: 18 Obeliscus 40: 143: 50: 18 latispira 57: 127 niveus 46: 118 pariensis 57: 127 rectus 40: 143 swiftianus 37: 33 obeliscus, Aspella 52: 44 obeliscus, Cerithium 36: 121; 55: 2 obeliscus, Murex 45: 77-8 obesa, Anachis 58: 61 obesa. Area (Scapharca) 37: 127 obesa, Cancellaria 37: 123 obesa, Urocoptis, see U. brevis o. obesum, Chondropoma 40: 89 obesus, Donax 37: 81-2; 43: 30 obesus, Spiraxis, see S. tenueeostatus o. obliqua, Limaeella 35: 79, 80 obliqua, Melina 38: 61 obliqua, Quadrula 36: 49 Obliquaria reflexa 36: 99; 44: 47 obliquegranosa. Melania 49: 76 obliquilineata, Tellina 40: 81; 60: 57 obliquus. Aneylus 37: 7-8, 12 obliquus, Gyraulus, see G. deflectus o. obliteratus, Polydontes 53: 42, pi. 8 oblonga tamaulipensis, Euglandina 49: 98 oblonga, Gastrocopta, see G. servilis o. oblonga. Marginella 39: 85; 56: 112-3, 123. pi. 12 oblonga, Succinea 52: 142 oblonga, Venerupis 37: 129 oblongus, Borus 39: 77-8 oblongus lorentzianus, Borus 39: 77 oblongus, Bulimus (Strophochilus) 49: 36 oblongus, Strophocheilus 43: 99; 49: 35-6 obnubilus, Elliptio 49: 81 obovale, Cardium 37: 128 Obovaria 52: 125 ellipsis 36: 100 leibii 44: 47 lens, see subrotunda 1. olivaria 36: 100 retusa 36: 99; 37: 136-7 striata 36: 83 subrotunda 40: 66; 44: 130 subrotunda lens 40: 66 obovata, Lithasia 35: 11, 59; 40: 8, 66; 41: 58. 60-1; 43: 3-7, 17; 46: 39-40; 48: 27. 101: 52: 128; 53: 74-6: 54: 11; 56: 132 obovata depygis, Lithasia 53: 74-5; 56: 132 obovata pennsylvaniea, Lithasia 45: 62 obovata sordida, Lithasia 52: 125; 53: 75-6; 56: 132 obovata, Melania 43: 3 obrapum. Busycon 36: 11 -- see also B. perversum o. obrussa, Fossaria 44: 46, 114; 45: 118; 49: 13, 130; 50: 14; 54: 29; 56: 54; 59: 29 obrussa brooksi, Fossaria 49: 13 obrussa decampi, Fossaria 49: 13; 50: 115; 54: 144; 57: 46 obrussa rodeeki, Fossaria 49: 130 obrussa, Galba 37: 30; 40: 120 obrussa, Lymnaea (Fossaria) 42: 121; 43: 60; 45: 140; 47: 79; 48: 47; 52: 15. 127; 54: 6; 56: 132 obrussa decampi, Lymnaea (Galba) 36: 25; 38: 11; 40: 55; 41: 85; 42: 17 obrussa exigua, Lymnaea 39: 125; 40: 60; 42: 17 obrussa strengi, Lymnaea 38: 11 obscura. Ena 37: 71 obscura , Goniobasis, see G. yrekaensis o. obscura, Oncidiella 51: 87 obscura, Oreohelix, see O. cooperi o. obscura, Solariella 35: 32 obscura, Urocoptis, see U. vignalensis o. obscurum, Sphaerium 57: 95 obscurus, Aneylus 37: 13 obscurus. Buliminus 44: 71 obscurus, ,Cymatium 36: 121 obsoleta, Alectrion (Ilyanassa) 35: 88; 38: 51: 39: 29. 39 obsoleta, Ilyanassa 42: 35; 58: 137-8 obsoleta. Leuconopsis 40: 126 obsoleta. Margarya, see M. melanoides o. obsoleta, Nassa 35: 88; 41: 12, 14-7; 56: 59; 58: 22 obsoleta. Polygyra, see P. fallax o. and P. hopetonensis o. obsoleta. Triodopsis, see T. hopetonen- sis o. obsoletus, Nassarius 45: 138; 56: 143; 58: 62; 59: 97 obstructa. Planorbula 38: 43; 40: 17; 42: 66; 47: 16-7 obstructa. Segmentina 39; 12 Obstructio 53: 106; 55: 31-2 obstructus, Planorbis 49: 104 obstructus. Tropicorbis 49: 104; 54: 97; 58: 32 238 THE NAUTILUS Octoradiata obtectum, Teinostoma 59: 3, 6, pi. 1 Obtortio 37: 33 obtusa, Cerithidea 56: 20 obtusa, Lampsilis, see L. claibornensis o. obtusa. Melania 54: 65 obtusa, Valvata 52: 30 obtusalastrum, Pisidium 52: 82 obtusale, Pisidium 52: 82. pi. 6 obtusata. Burnupia 40: 105 obtusata palliata, Litorina 38: 50 obtusata. Littorina 35: 98; 46: 106; 56: 59; 58: 21. 137-9, 141 obtusata, Nassa 60: 56 obtusata, Patula 44: 33 obtusum, Sphaerium 57: 95 obtusus, Anodontites 53: 54 obtusus, Somatogyrus 58: 7, 10 obvellata, Cypraea 52: 103-4 obvoluta, Helicodonta 44: 71 obvoluta, Helix 59: 119 occata, Goniobasis 48: 96 occidental^ Calliostoma 35: 87: 39: 131 occidentale, Carychium 36: 141; 47: 112 occidentale, Fartulum 38: 26; 51: 104 occidentale, Helisoma 47: 86-7, 90-1, 140-1; 58: 32 occidentale depressum. Helisoma 47: 140-1 occidentale, Pisidium 37: 21-2, 30 occidentale, Sphaerium 35: 117; 39: 123; 40: 51, 114: 42: 96; 52: 125; 53: 135; 57: 194; 58: 49 occidentalis, Anguispira, see A. kochi o. occidentalis, Aporrhais 35: 32, 89; 39: 29, 133: 44: 1-2, pi. 1; 56: 59 occidentalis labradorensis, Aporrhais 44: 3-4 occidentalis mainensis, Aporrhais 39: 133: 44: 1, 3; 57: 29 occidentalis. Area 35: 121; 37: 55; 39: 82; 49: 116, 133; 54: 21; 58: 56 occidentalis, Arrohoges 44: 2 occidentalis, Brachypodella 49: 58 occidentalis. Bulla 54: 20 occidentalis, Bullaria 37: 55; 38: 60; 38: 84 occidentalis. Carinifex 38: 66 occidentalis. Ferrissia 38: 107 occidentalis, Leuconia 40: 125-6 occidentalis, Lioplax, see L. subcarin- ata o. occidentalis, Lymnaea, see L. stagnalis o. occidentalis. Melania 35: 10; 43: 16 occidentalis, Microtralia 40: 126 occidentalis, Partula 50: 53 occidentalis. Retinella, see R. binneyana o. occidentalis. Rostellaria 44: 1-2 occidentalis, Sagda (Parahelix) 48: 138, pi. 9; 49: 53 occidentalis, Trochus 35: 87 occidentalis, Vaginulus (Latipes)42: 46; 44: 137 Occidentella 51: 87-8 occulta, Cylichna 40: 22 occulta, Helicina 43: 111, 118-9; 44: 21, 37-8; 50: 139; 51: 92 occulta, Hendersonia 39: 40; 43: 111; 44: 87; 53: 123 occulta rubella, Hendersonia 39: 142; 43: 42-5; 44: 21 occulta, Melania 38: 44 occultata, Anculosa 58: 42 Occultator 40: 106 ocellata, Area 60: 56 ocellata, Leucozonia 38: 60 ocellata, Melibe 35: 50 ocellata, Mitrella 52: 45 ocellata guttata, Mitrella 52: 45 ocellatum, Cerithium 52: 44 Ocenebra 60: 37 -- see also Ocinebra atropurpurea, see interfossa a. barbarensis 60: 40 beta 60: 39-41, 43, pi. 4 clathrata, see interfossa c. foveolata 60: 41 interfossa 60: 37-43, pi. 4 interfossa atropurpurea 60: 38-9, 43, pi. 4 interfossa clathrata 60: 39, 42, pi. 4 keenae 60: 40-1, 43, pi. 4 minor 60: 41-2, pi. 4 squamulifera 60: 40, 43, pi. 4 ochracea, Acmaea 50: 48, 50; 56: 42 ochracina, Succinea 38: 58, 62 Ochrodermella 48: 84; 58: 85, 87 martensi 58: 85 pittieri 58: 87 ochromphalus, Monadenia, see M. fidelis o. ochrostoma, Morula 36: 122; 58: 122 ochsneri, Teinostoma 60: 18 Ocinebra 60: 37 -- see also Ocenebra barbarensis 52: 10 interfossa 60: 38 interfossa atropurpurea 60: 38 Ochthephila 36: 45; 37: 108 (Discula) attrita 36: 45 (Discula) attrita contracta 36: 45 (Discula) attrita nigra 36: 45 contracta. see attrita c. grisea, see rotula g. nigra, see attrita n. (Discula) papilio 36: 45 (Callina) rotula grisea 36: 45 octogonos. Murex 59: 143 octona. Helix 44: 140 octona, Macrospira 44: 140 octona. Subulina 35: 119. 121; 39: 2, 144; 40: 90. 133-4; 41: 32: 44: 140; 49: 25; 56: 7; 57: 48 Octopus januarii 46: 44 pusillus 46: 44 octoradiata. Subemarginula 38: 62: 39: 87 239 Octosectus INDEX TO octosectus, Petaloconchus 58: 100 oculata, Cypraea 37: 50 oculus capri, Helix 37: 50 oculus caprimulgi, Helix 37: 50 odiosus, Spiraxis 53: 13 Odontartemon 41: 127 -- subgenus of Streptaxis Odontocyclas 36: 63 Odontosagda 54: 61 Odontostoma 36: 84-5; 60: 58 depressa 36: 84 odontostoma, Helix 60: 106 odontostoma, Odontostomus 60: 106 Odontostomus 40: 106; 54: pi. 6; 60: 57- 60, 106 Odontostomus (Spixia) 54: pi. 6 alvarezi 54: 92 champaquianus 54: 95 chuquisacana 44: 33 (Spixia) columellaris 54: 94-5 (Spixia) doellojuradoi 54: 93, 95 (Spixia) doellojuradoi minor 54: 94 gargantua 60: 59 gargantuas 60: 58 gargantula 60: 57 (Spixia) holmbergl 54: 92, 95 mar.tensi 54: 92, 94 minor, see doellojuradoi m. odontostoma 60: 106 pantagruelinus 60: 58-9 pyriformis 54: 92, 94 spixi 54: 92 teisseirei 44: 33 (Spixia) tucumanensis 54: 92, 94-5 tumulorum 52: 93 Odontostomus, Bulimus 60: 57-8 odontostomus, Macrodontes 60: 58-9 Odostomia 35: 61; 36: 34; 37: 37; 38: 23; 44: 93; 49: 2; 50: 48; 55: 122; 56: 140; 58: pi. 2 (Miralda) aepynota 37: 42 americana 36: 18; 37: 42 (lolaea) amianta 50: 48, 50 (Chrysallida) astricta 50: 47, 50 babylonia 46: 118 (Menestho) beauforti 35: 99 (Menestho) bisuturalis 38: 50; 52: 29; 56: 143 (Amaura) Candida 39: 132 (Chrysallida) catalinensis 37: 42 (Chrysallida) cincta 37: 42 (Chrysallida) Clementina 37: 42 (Besla) convexa 55: 122 fetella 42: 3 granitina, see impressa g. (Miralda) havanensis 46: 118, pi. 6 (Chrysallida) helga 37: 42 hiloensis 58: 65, pi. 6 impressa 56: 143; 58: 60 impressa granitina 43: 132 (Evalea) io 50: 48 (Amaura) kennerlyi 51: 101 margarita 58: 65 (Ividella) mariae 42: 40, 78 monaulax 58: 65, 106 (Amaura) moratora 50: 48, 50 (Ividella) navisa 37: 42 (Chrysallida) oregonensis 50: 48 (Ividella) pedroana 37: 42 (Evalea) phanella 37: 42 prima 58: 65 (Chrysallida) pulcia 37: 42 (Evalea) quadrae 38: 26; 51: 102 quinta 58: 64 (Amaura) sanjuanensis 38: 26; 51: 102 seminuda 58: 60 (Evalea) skidegatensis 38: 26; 51: 102 stearnsii 53: 22 (Evalea) stephensae 38: 26; 51: 102 (Evalea) strongi 37: 42 (Amaura) subturrita 37: 42 sulcosa 35: 32 suturamarginata 50: 108 (Amaura) talpa 38: 26; 51: 102 (Chrysallida) telescopium 55: 122 tenuisculpta 36: 18; 37: 42 (Evalea) tenuisculpta 50: 48 (Menestho) trifida 38: 50; 52: 29; 56: 143 (Evalea) unalaskensis 51: 102 (Evalea) valdezi 50: 48, 50 (Evalea) willetti 38: 26; 51: 102 Oenopota 51: 118; 53: 22 kobelti 51: 116 oerstedi, Pachychilus 44: 83 Ogaridiscus 43: 96, 123-4, 143 ogeecheensis, Micromya 49: 81 ohiense, Sphaerium 44: 128; 57: 95 okai, Sacculus 41: 72 okeniana, Pleurodonte 49: 56 okeniana fortis, Pleurodonte 49: 56 Olea 36: 133, 136 hansineensis 36: 133-6, 138, pi. 6 Oleacina 54: 131; 55: 52-3, 55 (Salasiella) camerata 55: 55-6, 59, pi. 5 joaquinae 55: 53, 55 miilleri 55: 53 oleacea straminea 38: 62; 55: 53 solidula 38: 62 straminea, see oleacea s. voluta 55: 53 oldroydi, Acteocina 39: 25 oldroydi, Barleeia 50: 48 oldroydi, Coralliophila 42: 98 oldroydi, Vitrinella 55: 124 oldroydii, Eunaticina 53: 135-6; 54: 136, 138; 60: 90 oleacea, Laevoleacina 40: 90 oleacea straminea, Oleacina 38: 62; 55: 53 olearium, Buccinum 37: 50 olearius, Turbo 37: 50 oleosa, Alcadia 54: 70 olequahensis, Ambloxis 36: 142 240 THE NAUTILUS Oliva olequahensis, Goniobasis 36: 142 Olequakia 40: 144 olfersi, Astralium 39: 86 olgae, Haminoea 38: 25; 51: 104 Oligochiton 36: 107 Oligolimax 42: 138-9 oligoptyx, Poteria, see P. caymanensis o. Oligyra 40: 35-6; 44: 34 orbiculata 37: 66-9; 54: 20 oliphantensis, Corbicula 47: 77 Oliva 35: 62; 36: 110; 43: 72; 44: 27; 46: 110; 48: 70; 51: 109-11; 54: 32; 55: 11; 59: 74; 60: 27, 89 adspersa, see carneola a. alba, see emicator a. albina, see tremulina a. albofasciata, see oliva a. amethystina 42: 10 angulata 37: 123 annulata, see emicator a. athenia 42: 12 aurata, see oliva a. azona, see reticulata a. bizonalis, see carneola b. bollingi, see reticularis b. caerulea 42: 110 callospirata 58: 100 candidula, see carneola c. caribaeensis 51: 112 carneola 42: 12 carneola adspersa 42: 13 carneola bizonalis 42: 12 carneola candidula 42: 12 carneola coccinata 42: 12 carneola trichroma 42: 13 carneola unizonalis 42: 12 carnicolor, see emicator c. chrysoides, see tremulina c. cincta, see oliva c. cinnamonea, see oliva c. circinata 35: 135; 39: 85 coccinata, see carneola c. concinna 42: 9 efasciata, see erythrostoma e. emeliodina, see episcopalis e. emicator 42: 10 emicator alba 42: 10 emicator annulata 42: 10 emicator carnicolor 42: 10 emicator intricata 42: 10 emicator mantichora 42: 10 emicator nebulosa 42: 10 episcopalis 42: 10 episcopalis emeliodina 42: 11 episcopalis lugubris 42: 10 erythrostoma 42: 7; 55: 2 erythrostoma efasciata 42: 7 erythrostoma fumosa 42: 8 erythrostoma johnsoni 42: 8 erythrostoma pica 42: 8 erythrostoma saturata 42: 8 erythrostoma sylvia 42: 8-9 evania, see reticulata e. fumosa, see erythrostoma f. granitella, see tremulina g. gratiosa, see ispidula g. guttata 42: 10 incrassata 47: 47; 48: 4; 55: 66; 57: 5 intricata, see emicator i. ispidula 42: 11 ispidula gratiosa 42: 11 ispidula jayana 42: 12 ispidula lactanea 42: 11 ispidula longispira 42: 11 ispidula martini 42: 12 ispidula oriola 42: 11 jayana, see ispidula j. johnsoni, see erythrostoma j. kaleontina 37: 123 lactanea, see ispidula 1. lepida, see sidelia 1. litterata 36: 11; 39: 85; 51: 48, 112 longispira, see ispidula 1. lugubris, see episcopalis 1. mantichora, see emicator m. martensii 48: 70 martini, see ispidula m. miniacea 42: 7 mutica 36: 11 nebulosa, see emicator n. nitidula 48: 70-1 nivosa 47: 143 oliva 42: 9 oliva albofasciata 42: 9 oliva aurata 42: 9 oliva cincta 42: 9 oliva cinnamonea 42: 9 oliva rumphi 42: 9 oriola, see ispidula o. ozodona 48: 70 pallida, see reticulata p. paxillus 48: 70 peruviana 37: 123 pica 42: 9 -- see also erythrostoma p. pindarina, see spicata p. porphyria 46: 75 porphyritica 42: 8 reticularis 47: 142; 51: 112; 58: 37 reticularis bollingi 47: 142 reticulata 42: 11 reticulata azona 42: 11 reticulata evania 42: 11 reticulata pallida 42: 11 reticulata zigzag 42: 11 rumphi, see oliva r. sandwichensis 36: 122; 48: 70 sanguinolenta 42: 11 saturata, see erythrostoma s. sayana 35: 135; 36: 11; 37: 53, 55; 51: 112; 54: 33, pi. 1; 55: 66; 58: 62 sericea 42: 7 -- see also tremulina s. sidelia 42: 12 sidelia lepida 42: 12 sidelia todosina 42: 12 241 Oliva INDEX TO sidelia volvariodes 42: 12 spicata pindarina 37: 123 Sylvia, see erythrostoma s. tenebrosa 42: 9 textilina 42: 7-8 thomasi 48: 70 todosina, see sidelia t. tremulina 42: 7-8 tremulina albina 42: 8 tremulina chrysoides 42: 9 tremulina granitella 42: 8 tremulina sericea 42: 8 trichroma, see carneola t. tricolor 60: 83 trujilloi 51: 111-2, pi. 9 variegata 42: 11 venulata 57: 5 volvariodes, see sidelia v. unizonalis, see carneola u. zigzag, see reticulata z. oliva. Helix 37: 50 oliva, Nerita 37: 50 oliva, Oliva 42: 9 oliva albofasciata, Oliva 42: 9 oliva aurata, Oliva 42: 9 oliva cincta, Oliva 42: 9 oliva cinnamonea, Oliva 42: 9 oliva rumphi, Oliva 42: 9 oliva, Voluta 37: 50 olivacea, Amnicola 52: 131; 58: 7 olivacea, Margarites 39: 131 olivacea gigantea, Margarites 39: 131 olivacea, Oxynoe 56: 80 olivacea, Surcula 52: 46 olivaceum, Zaphysema 49: 24, 54, pi. 2 olivaceus, Ampullarius 39: 2 olivaceus, Melampus 36: 34; 52: 45 olivaeformis, Mitra 60: 56 Olivancillaria 42: 13 aurantia, see gibbosa a. candicans, see gibbosa c. cingulata, see gibbosa c. flavescens, see gibbosa f. fulgurans, see gibbosa f. gibbosa 42: 13 gibbosa aurantia 42: 13 gibbosa candicans 42: 13 gibbosa cingulata 42: 13 gibbosa flavescens 42: 13 gibbosa fulgurans 42: 13 gibbosa mediocincta 42: 13 hiatula 52: 45 mediocincta, see gibbosa m. olivaria, Obovaria 36: 100 Olivella 35: 47; 43: 109; 45: 81; 46: 76,108; 48: 100; 55: 12, 93; 57: 73, 75, 78-9; 59: 74 anazora 47: 47 angelina, see biplicata a. baetica 57: 73, 76 biplicata 36: 34; 37: 41; 43: 109; 44: 93; 48: 75; 50: 47; 53: 22; 55: 10, 66, 93; 56: 43-5; 57: 73-7, 79; 60: 81-2 biplicata angelina 57: 75-6 biplicata fucana 57: 75-6 biplicata lapillus 55: 11 biplicata parva 57: 75-6 blanesi 52: 29 boetica 36: 34; 38: 25; 57: 73, 76 columellaris 37: 122-3; 45: 75-6 consobrina 40: 142 dama 48: 4; 55: 114; 57: 5 fucana, see biplicata f. gracilis 47: 47; 52: 45 intorta 55: 93 lapillus, see biplicata 1. minuta 48: 71 mutica 37: 54; 48: 71; 58: 62 nivea 39: 85 parva, see biplicata p. pedroana 36: 34; 44: 93; 57: 73, 76-9 porteri 36: 34 pusilla 52: 29 pycna 55: 12, 92-3; 57: 73, 75, 77-80 semistriata 37: 123 undatella 60: 81-2 volutella 45: 75, 79; 52: 45 watermani 54: 64 zanoeta 47: 47 zonalis 60: 81 olneyae, Polygyra, see P. mullani o. olssoni, Area (Noetia) 37: 126 olssoni, Urocoptis 52: 16 olympia, Partula 37: 112, 114-6, 118 Omalaxis 48: 128 bifrons 48: 128 lamellifera 48: 128-9 nobilis 48: 129 Omalonyx 37: 77 omaria, Conus 36: 121 pmissa, Hyalosagda (Vilitas) 48: 135; 49: 52 .Omogymna 48: 70 omoia. Tellina 45: 111 Omphalina 38: 133; 40: 64; 44: 128 andrewsae46: 58-9 andrewsae montivaga 46: 58-9 cuprea 39: 28, 80; 40: 48; 44: 17; 53: 87; 58: 127-8 cuprea polita 35: 41, 43 fragilis 40: 16 friabilis 44: 17 fuliginosa 43: 67 kopnodes 44: 128 montivaga, see andrewsae m. polita, see cuprea p. subplana 46: 59 Omphalius ligulatus 36: 34 -- also as subgenus of Chlorostoma and Tegula Omphalotropis 42: 70 variabilis 41: 34 Onchidella 50: 137; 51: 86, 88 -- also as subgenus of Onchidium australis 51: 86 borealis 51: 87 242 THE NAUTILUS Opisthosiphon Onchidia 51: 86, 88 Onchidina 51: 86-7 onchidioides, Buchanania 51: 86 onchidioides, Buchannia 51: 86 Onchidion 51: 85, 88 Onchidium 43: 30; 50: 85; 51: 85-6, 88 carpenteri 50: 100 chameleon 51: 87 coriaceum 51: 87 ferrugineum 51: 87 (Onchidella) floridanum 50: 85 glabrum 51: 87 nigricans 51: 86 peronii 51: 85 punctatum 51: 87 sloanii 39: 13, 16-7; 42: 44 tonganuni 51: 86 typhae 51: 85-6 Onchidoris bilamellata 56: 58 Onchis 51: 85-6, 88 armadilla 51: 86 Onchydium 51: 85, 88 Oneida 51: 86, 88 Oncidiella 51: 86, 88 nigricans 51: 86-7 obscura 51: 87 Oncidina 51: 86, 88 Oncidium 51: 86, 88 Oncis 51: 86-8 coriacea 51: 87 Oncomelania 58: 135 Oncus 51: 86, 88 peronii 51: 86 onealensis, Cerithiopsis 38: 26 oneida, Amnicola 35: 23; 40: 50 oneida, Physa, see P. sayii o. oneilensis, Cerithiopsis (Cerithiopsi- della) 51: 102 Onoba aculeus 39: 133 ontariensis, Stagnicola, see S. emar- ginata o. ontariensis, Valvata, see V. lewsii o. onusta, Helicina, see H. adspersa o. onyx, Crepidula 37: 43, 125; 51: 124 ooides, Liomesus 51: 125 oomorpha, Camaena 46: 63 oomorpha demesana, Camaena 46: 63 Oopelta 48: 143: 55: 63 aterrima 48: 143 nigropunctata 48: 143 Ootoma 47: 76 jonkeri 47: 76 martini 47: 76 Ootomella 47: 76 opaca, Goniobasis 41: 59 opaca, Melanella 36: 122 opaca, Melania 41: 59 opaca. Pleurocera 41: 59 opal, Miradiscops 49: 25 opalescens, Aeolis (Flabellina?) 35: 75 opalescens. Hermissenda 35: 75-6; 36: 91, 134 opalescens, Loligo 60: 91 Opalia 41: 104; 51: 4, 6-7 -- also as subgenus of Epitonium bullata 58: 100 chacei 51: 5-6, pi. 2; 53: 22 evicta 51: 4, 6, pi. 2 insculpta 52: 10 montereyensis 51: 6-7, pi. 2 tremperi 51: 7; 60: 8 wroblewskii 51: 4-5, pi. 2 opalina, Marginella, see M. denticulata o. Opalliostyla 59: 121 oparana, Pitys 47: 61 oparanum, Opeas 40: 134; 41: 32 Opeas 38: 79; 40: 64, 133-4, 143; 42: 70; 48: 84; 58: 84-5, 87, 89 beckianum 39: 2; 58: 91 caracasensis 58: 91 clavulinum 58: 89-90 clavulinum hawaiiense 38: 82 fragilis 45: 72 goodalli 50: 132; 57: 48; 58: 84, 86 gracile 39: 2, 42; 40: 90, 143; 52: 29- 30; 58: 87-8 hannense 58: 87 hawaiiensis, see clavulinum h. javanicum 38: 80; 40: 133 lata 45: 72 layardi 59: 105 mauritianum 40: 138 mazatlanica, see micra m. micra 38: 62; 44: 82; 56: 7; 58: 90 micra mazatlanica 44: 82, pi. 5 oparanum 40: 134; 41:32 pumilum 39: 2; 40: 138; 49: 25; 58: 85-7 pyrgula 58: 86-7 « subula 58: 85 opeas, Spiraxis (Versutaxis) 53: 11, 13, 52, 93, pi. 3 opercularis, Menetus 49: 47 opercularis, Palorbis 49: 47 opercularis, Pecten 47: 63; 50: 56-7 opercularis, Planorbis 36: 17 opercularis planulatus, Planorbis (Menetus) 48: 33, 48 operculata, Sanguinolaria 60: 19 ophioderma, Clathrodrillia, see C. incisa o. ophioderma, Ischnochiton 50: 86 ophioderma, Ophiodermella 58: 108 opifex. Modiolus (Gregariella) 37: 41 Opisthosiphon 45: 91-2, 94; 47: 116 aguilerianum 45: 92-4 aguilerianum holguinense 45: 93, 97 andrewsi 42: 98, pi. 5; 47: 130. 132 bahamensis 38: 62; 45: 93 caroli 45: 94-5, 97 cunaguae 42: 98. pi. 5; 47: 132 echinatum 45: 94 holguinense, see aguilerianum h. indivisum, see uncinatum i. 243 Opisthosiphon INDEX TO judasense 42: 98 lamellicostatum 42: 98; 47: 131-2 quesadai 45: 95, 98 rivorum 45: 95, 98 sculptum 45: 94 torrei 42: 98, pi. 5; 47: 131 uncinatum indivisum 42: pi. 5 Ophiodermella 58: 108 montereyensis 58: 108 ophioderma 58: 108 optima. Patella, see P. stellaeformis o. optima, Succinea, see S. ovalis o. oquirrhensis, Oreohelix, see O. haydeni o. oquirrhensis, Patula, see P. hemphilli o. ora, Micrarionta 50: 122 ora, Sonorelix 58: 72 orbata, Ampullaria 41: 64 orbata, Pila 41: 64 orbata, Pomacea 41: 63-4 orbella, Diplodonta 37: 41; 55: 110-3 orbella, Paphia, see P. staminea o. orbicularis, Codakia 35: 121; 39: 83; 52: 28 orbicularis, Codokia 49: 118 orbiculata, Codakia 37: 54; 39: 83; 58: 58 orbiculata, Codokia 49: 118 orbiculata, Helicina 38: 60; 41: 52; 42: 20; 43: 35, 112; 47: 79, 147; 51: 92; 52: 115 orbiculata tropica, Helicina 38: 43; 39: 11; 40: 16; 42: 66; 47: 16, 147 orbiculata, Hendersonia 44: 34 orbiculata, Lampsilis 36: 101 orbiculata, Oligyra 37: 66-9; 54: 20 orbiculatus, Unio 37: 135-7 orbignyana, Physa 45: 139 -- see also P. d'orbignyana orbignyi, Unio 47: 72 Orchidium 51: 85, 88 lesliei 51: 87 Orcula 36: 63 -- subgenus of Pupa orcula, Pupisoma 43: 52 orcutti, Epiphragmophora 51: 33 orcutti, Fartulum 37: 42 orcutti, Micrarionta, see M. harperi o. orcutti, Sonorella, see S. baileyi o. orcuttiana, Micrarionta, see M. harperi o. ordenanum, Epitonium (Nodiscala) 45: 114 oreadarum, Hua 57: 21 oreadarum, Melania 57: 21 oreas, Isomeria 58: 117 oregonense, Argobuccinum 38: 27; 44: 93; 46: 53; 47: 102; 60: 93 oregonense, Michanellum 38: 26 oregonensis, Anodonta 41: 76 oregonensis, Epiphragmophora, see E. fidelis o. oregonensis, Ferrissia 39: 71; 48: 48 oregonensis, Goniobasis 48: 95 oregonensis, Helix 36: 12-3; 46: 11; 50: 99 oregonensis, Marcia 42: 5 oregonensis, Micranellum 51: 104 oregonensis, Odostomia (Chrysallida) 50: 48 oregonensis, Succinea 48: 33; 47; 57: 131-2 Oreohelix 37: 80; 38: 67; 40: 4, 101; 41: 74, 86, 90; 42: 64, 124; 43: 54, 61, 144; 44: 33, 73-5, 102; 45: 83; 46: 57; 47: 3; 49: 69; 50: 13, 18, 35, 73, 75-6; 52: 106; 53: 143; 54: 95; 56: 104; 57: 108, 144; 58: 116-7 amariradix 49: 69 angelica, see yavapai a. (Radiocentrum) avalonensis 44: 73 baileyi, see idahoensis b. berryi 47: 3 capax, see strigosa c. carinifera 49: 69 clappi 40: 4 Glutei, see yavapai c. cooperi 35: 15; 41: 20, 88; 43: 55-6; 44: 102, 114; 47: 2-3; 49: 69; 54: 30 -- see also strigosa c. cooperi maxima 47: 1 cooperi obscura 35: 15 corrugata, see haydeni c. cumingsi, see yavapai c. depressa 35: 15: 42: 123; 47: 3; 48: 140-2 -- see also strigosa d. eurekensis 52: 105; 54: 96 eurekensis uinta 52: 105 extremitatis, see yavapai e. ferrissi 40: 4 fortis, see yavapai f. gabbiana, see haydeni g. and strigosa g. goniogyra, see strigosa g. grangeri 50: 128 hachetana 36: 119 handi 44: 73-4; 54: 96 haydeni 35: 15; 45: 84; 46: 56-8, pi. 3 haydeni corrugata 46: 57 haydeni gabbiana 46: 56 haydeni hybrida 46: 56 haydeni oquirrhensis 43: 56; 46: 57; 54: 30 houghi 43: 144; 49: 69 houghi winslowensis 43: 144 hybrida, see haydeni h. idahoensis baileyi 49: 69 iowensis, see strigosa i. junii 49: 69 maculata 35: 14 maxima, see cooperi m. megarche 50: 128; 58: 117 obscura, see cooperi o. oquirrhensis, see haydeni o. parawanensis 54: 95, pi. 8 parma 48: 48 peripherica weberiana 56: 52-3 pilsbryi 40: 5 pygmaea 35: 14 strigosa 42: 120; 49: 69; 50: 73-7 strigosa capax 50: 101 strigosa cooperi 48: 71; 53: 142 244 THE NAUTILUS Ostrea strigosa delicata 49: 69 strigosa depressa 35: 48; 40: 4; 41: 88 43: 70; 50: 13, 101; 53: 143; 54: 29- 30, 96, 108, 116-7 strigosa gabbiana 54: 29 strigosa goniogyra 49: 69 strigosa iowensis 56: 104 subrudis 47: 3; 49: 69; 50: 13 uinta, see eurekensis u. variabilis 50: 77 vauxae, see yavapai v. weberiana, see peripherica w. winslowensis, see houghi w. yavapai 40: 101 yavapai angelica 35: 48; 40: 101 yavapai clutei 49: 69 yavapai cumiligsi 49: 69 yavapai extremitatis 40: 101 yavapai fortis 40: 101 yavapai vauxae 43: 144 organensis, Ashmunella 49: 101-2 organensis, Liguus, see L. flammellus o. oria, Polygyra, see P. columbiana o. orickensis, Goniobasis 48: 130, 134 orientalis, Bellamya, see B. quadrata o, orientalis, Cymatoica 53: 19 orientalis hendersoni, Cymatoica 53: 19, pi. 6 orientis, Sonorella, see S. hachitana o. Orinella vanhyningi 57: 106, pi. 9 Ornithochiton caliginosus 58: 102 picea 58: 102 orinocensis, Castalia 57: 14, pi. 5 orinus, Naesiotus, see N. quitensis o. oriola, Oliva, see O. ispidula o. orizabensis, Radiodiscus 35: 49; 39: 29 orizabensis, Spiraxis (Pseudosubulina) 53: 9, 94 ornata, Anculosa 35: 10; 46: 39 ornata, Goniobasis 58: 44 ornata, Myurella (Myurellina) 37: 63 ornata, Nerita 36: 51; 52: 45 -- see also N. scabricostata o. ornatula, Cerion 38: 60 ornatum, Sphaerium 57: 95 ornatus, Liguus 38: 61 -- see also L. testudineus o. ornatus, Pecten 38: 61, 118; 39: 83; 58: 38 Orobophana 48: 53-4 orotes, Helminthoglypta, see H. petri- cola o. orotis, Vitrea 43: 113-4 orphia. Columbella 36; 121 Orthalicinus 47: 147 Orthalicus 59: 29, 31; 60: 106-7 niaracaibensis 60: 106 sultana 57: 47 undatus 60: 107 zebra 60: 106-7 Orthaulax 38: 34; 39: 28-9 japonicus 39: 29 pugnax 41: 4 Orthostylus 46: 71; 59: 120 Orthotomium 53: 113-4 -- subgenus of Bulimulus ortmanni, Elliptio 35: 25 ortmanni, Micromya 39: 108; 40: 67 ortmanni, Unio (Nephronaias) 35: 24-5 Orygoceras 37: 97-8; 38: 143; 58: 35 corniculum 37: 98 enemopsis 37: 98 fistula 37: 98 oryza, Cylichna 56: 143 oryza, Leptachatina 38: 81 oryza. Trivia 60: 55 Oryzostoma 55: 52 OS roseum. Helix 37: 50 OS rubrum. Helix 37: 50 oscariana. Vertigo 37: 66; 42: 21; 50: 98 osculans, Hyalosagda 48: 135; 49: 53 osculans, Physa, see P. heterostropha o. osculans, Physella ^9: 21 osculans, Varicella 49: 25 ostergaardi, Cypraea 35: 50; 36; 71; 42: 144; 50: 52, 80; 55: 2 ostergaardi, Mitra 36: 122 Ostomya 60: 36 Ostrea 38: 35; 39: 30; 41; 16-7; 45: 134; 46: 1. 75; 48: 4; 51: 47; 55: 94; 57: 90; 58: 54, 61; 60: 27 albicans 58: 54 bajet 37: 46 bryani 49: 103; 50: 88 californica 41: 45-7 -- see also vir- ginica c. callichroa 46: 45 canteriata 37: 46 columbiensis 37: 127 corallina 50: 25 coxi 59: 40-1 crenulata 38: 118 cristata 39: 83 disparilis 59: 40-1 edulis 40: 102-3; 43: 144; 55: 108 elongata 36: 138; 38: 62, 121 equestris 43: 144; 51: 93 fasciata 37: 48 flabellum 38: 113; 47: 64 gibba 38: 113 gigantea 37: 48 gigas 37: 48; 49: 1; 52: 140 grandis 38: 112 iridescens 41 : 46 jacobaea 37: 49 kamehameha 49: 103; 50: 88 lima 58: 53 locklini 59: 39-41 lurida 36: 34; 42: 3; 43: 50; 58: 99 magellanica 38: 112 maxima 37 : 49 medius 38: 116 megodon 37: 127; 46: 110 mexicana 52: 45 nucleus 37: 50; 38: 115 palmula 37: 41; 46: 45 245 Ostrea INDEX TO perrini, see titan p. pes-felis 50: 25-6 radiata 47: 63 radula 37: 50 retusa 40: 82; 50: 88 sanguinea 37: 51 sauciata 38: 118 sculpturata 59: 40 spondyloidea 37: 51 spreta 58: 57 thaanumi 52: 118 titan perrini 43: 22, pi. 3 turgida 38: 115 varia 37: 52 vatan 37: 52 virginiana 38: 121 virginica 37: 53-4; 38: 49, 121; 41: 12, 14-5, 46; 43: 35; 49: 1, 37, 132; 52: 68, 107; 53: 35; 54: 21; 56: 141; 57: 67; 58: 57; 60: 19, 34, 75 virginica californica 41: 46 ostrearia, Navicula 45: 119 ostrearum, Muricidea 39: 86; 56: 35 ostrina, Thais, see T. emarginata o. otaheitana, Partula 37: 112 Otala axia 50: 72 -- also as subgenus of Helix lactea 50: 72; 57: 105 vermiculata 57: 105 Otella lactea 58: 67 Otesia 59: 66-7 cerasina reducta 45: 30 Otis, Polinices 52: 46 ottonis, Chondropoma 38: 61; 40: 89 oualaniensis, Symplectoteuthis 46: 44 Otopleura diminuta 36: 122 Oudardia -- subgenus of Tellina ouenensis, Helicina (Palaeohelicina) 43: 134 ouenensis, Helicina 44: pi. 5 ovalis, Succinea 36: 25; 38: 93; 39: 125; 40: 48, 59, 114. 117-8; 41: 34; 42: 16; 43: 42-3, 82, 119. 133; 44: 88. 129: 45: 34, 116; 48: 59; 49: 6, 10; 52: 96; 53: 87; 55: 14-5, 67; 56: 92-5; 57: 136; 58: 25-6; 59: 28, 92 ovalis chittenangoensis, Succinea 40: 118 ovalis optima, Succinea 55: 67; 58: 110 ovalis pleistocenica, Succinea, 40: 117-8 ovalis, Umbraculum 37: 123 ovata, Gastrochaena 54: 41 ovata patula, Gulnaria 52: 59 ovata, Lampsilis 37: 142. 144; 39: 93; 40: 67 ovata cohongoronta, Lampsilis 44: 19 ovata satura. Lampsilis 37: 142; 39: 93 ovata ventricosa, Lampsilis 37: 142-4; 39: 93; 40: 67; 44: 19 ovata, Lymnaea 41: 41; 50: 133; 52: 58; 55: 19, 106 ovata aberrans, Lymnaea 55: 19 ovata. Vertigo 37: 66; 38: 42; 40: 54; 42: 21; 43: 68; 44: 110; 45: 117; 48: 34; 50: 98; 51: 130; 52: 15; 53: 77, 88; 57: 131- 2; 58: 69 oviforme argenteum, Pleurobema 36: 80 ovoidea, Helicostyla 59: 119 ovoidea. Helix 59: 120 ovoidea, Pholadidea 43: 51; 56: 42 Ovula 47: 47 lactea 60: 55 ovularis, Melania 43: 14 Ovulum concinnum 40: 18 ovum, Amphiperas 40: 17 ovum, Pisidium 35: 117: 37: 20, 22 ovum, Rivularia 56: 129 ovum-reguli, Cepolis 35: 120-1 oweni, Cerion 49: 50 oweni, Patinopecten 50: 57 oweni, Pecten (Chlamys) 41: 93; 50: 56-7 oweniana,Ryssota (Lamarckiella) 46: 105 oweniana smithi, Ryssota (Lamarckiella) 46: 105 oxiana schahrudensis, Ena 50: 9 oxycantha, Murex 45: 77; 52: 45 Oxychilus 60: 96 cellarium 51: 140; 52: 96-7 draparnaldi 49: 100 Oxymeris 37: 61, 63 Oxynoe 56: 80-1 antillarum 56: 80 olivacea 56: 80 panamensis 56: 80, pi. 8 viridis 56: 80 oxys, Cerithiopsis 37: 42 Oxystrombus 47: 147 fasciatus 47: 147 Oxystyla 35: 20-1, 68; 36: 112-5; 44: 25, 27, 102; 48: 6; 50: 2, 6. 19; 52: 93; 53: 4-7, 122; 59: 30-1: 60: 107 albata, see ponderosa a. balesi, see ponderosa b. boucardi 44: 82, pi. 3 capax 48: 6 ferussaci tricincta 60: 107 floridensis 35: 20. 22; 36: 111; 38: 59; 50: 2, 6. 19 -- see also undata f. imitator, see maracaibensis i. jamaicensis, see undata j. maracaibensis 59: 30-1 maracaibensis imitator 59: 30 mariae. see melanocheilus m. melanocheilus 44: 82; 53: 6 melanocheilus mariae 53: 6, pi. 2 ponderosa 52: 93: 53: 4-5, pi. 2 ponderosa albata 53: 5, pi. 2 ponderosa balesi 53: 5, pi. 2 prototypus, see pulchella p. pulchella 53: 7, pi. 2 pulchella prototypus 43: 77; 48: 5 reses, see undata r. torrei 52: 93; 53: 7, pi. 2 246 THE NAUTILUS Paludestrina tricincta, see ferussaci t. undata 38: 57, 61; 49: 3, 56; 50: 19-20; 56: 36; 59: 31 undata floridensis 53: 122 undata janiaicensis 49: 56; 56: 5; 59: 31 undata reses 50: 19-20 zonifera 53: 7 oxytata, Murex. see M. hexagonus o. oxytropis, Angulyagra 56: 129 oxytropis, Paludina 56: 128 oxytropoides, Angulyagra 56: 128 ozarkensis. Bulimulus. see B. dealbatus o. ozarkensis, Fusconaia 36: 74 ozarkensis. Goniobasis 38: 45 ozodona, Oliva 48: 70 pachia. Cancellaria. see C. nioorei p. Pachychilus 44: 84; 49: 75 corvinus 44: 85 mexicanus, see pannucula m. oerstedi 44: 84 pannucula mexicanus 44: 85 pannucula tuniidus 44: 85 schumoi 44: 84, pi. 7 tuniidus, see pannucula t. pachychilus. Megalobulimus 58: 29 Pachydrobia monbeigi 58: 134 Pachymelania aurita 41: 57 Pachypoma -- subgenus of Astraea Pachysiphonaria 59: 108 pacifica. Area 37: 126: 46: 110. 114: 47: 82 pacifica. Barnea 37: 130 pacifica, Chama 47: 85 pacifica, Cypraea 35: 50; 36: 71-2 pacifica, Leucosyrinx 59: 23 pacifica, Lima 37: 122. 128; 52: 45 pacifica, Mesodesma 43: 24 pacifica, Morrisonella 59: pi. 3 pacifica, Myadesma 43: 24 pacifica, Semele 37: 41 pacifica. Trivia 37: 125: 52: 46 Pacificella variabilis 47: 60 pacificum, Cerithium 56: 30 pacificum, Potamides 45: 79 packardi, Lima 36: 142 packardi, Parapholyx 55: 132 packardi corrugata, Parapholyx 55: 132, pi. 8 pacoimensis. Helminthoglypta, see H. traski p. Pagana 42: 138-9 Pagodina 36: 63 pagoda. Defrancia 51: 116-8 pagodiformis, Helix 47: 61 pagodiformis. Melania 52: 126-7 pagodiformis. Pitys 47: 61 pagodum. Gyrotoma 58: 47 pagona. Venus 37: 50 painei. Tritonalia 50: 47 palaea, Haliotis 46: i39 Palaeohelicina stanleyi sinus 50: 54 -- also as subgenus of Helicina Palaeoleuca 40: 126 paleacea, Acmaea 36: 18, 34; 37: 43; 50: 49 paleosa, Thysanophora 41: 144; 54: 56 pallasii. Chiton 39: 76: 50: 142 pallescens, Pleurodonte 49: 55 pallescens, Poteria 48: 87 Palliata -- subgenus of Alcadia palliata. Alcadia. see A. brownii palliata. Helix 51: 93 palliata. Littorina 35: 98; 39: 133; 43: 65; 46: 106; 56: 59. 143 -- see also L. obtusata p. palliata, Polygyra 43: 67; 46: 48. 91; 48: 106; 50: 119; 51: 56 pallida. Achatinella 38: 78 pallida. Amnicola 42: 55; 60: 85 pallida. Avicula 40: 81 pallida. Bulla 37: 50 pallida. Ferrissia (Laevapex) 46: 117 pallida. Helix 52: 78 -- see also H. hortensis p. pallida, Mulinia 37: 130 pallida, Natica (Euspira) 38: 27 pallida, Oliva. see O. reticulata p. pallida. Patella 45: 25 pallidula. Varicella, see V. costulata p. pallidulus. Modiolus 48: 128 pallidum. Musculium 40: 30 pallidus. Agriolimax 37: 28 pallidus. Planorbis 39: 43 pallidus. Streptostylus 40: 130 pallidus. Tropicorbis 49: 104 Pallifera dorsalis 43: 43; 44: 129; 48: 57-9 palliopunctatus. Mytilus 52: 45 Pallium 50: 25-6; 58: 52, 54 palma. Conus 37: 50 Palmadusta 57: 23 unifasciata 57: 23 palmarosae mexicana. Murex 46: 112 palmea. Bulla 37: 50 palmeri. Ampullaria 44: 33 palmeri. Anodontites 44: 33 palmeri, Calliostoma 47: 47 palmeri. Humboldtiana 44: 12-3. pi. 2; 48: 94 palmula. Ostrea 37: 41; 46: 45 palmulatus, Callistochiton 58: 101 Palorbis opercularis 49: 47 Paludestrina 44: 110: 47: 12; 48: 102; 52: 87 andecola 38: 103 bottimeri 39: 8 confusa 36: 108 culminea 38: 103 diaboli 48: 91 laevis 56: 144 longinqua 42: 121; 44: 109-10. 114; 47: 11: 54: 29; 56: 55 minuta 35: 87: 56: 143; 59: 97 nanna 47: 28 247 Paludestrina INDEX TO protea 38: 43: 41: 120; 47: 29; 48: 92; 59: 19 seemani 38: 43 stearnsiana 48: 33 taylori 60: 86 (Ecrobia) truncata 39: 8; 53: 45 Paludina 41: 41; 54: 65-6; 55: 83. 92: 56: 124. 128-9; 57: 68; 60: 84-5 auriculata 56: 129 bellamya 56: 126 ciliata 55: 83 decisa 51: 48 deformis 56: 125 (Mudalia) dissimilis 35: 9; 46: 38, 40; 54: 65 genicula 52: 129 heudei 56: 124; 59: 66 humerosa 47: 151 intertexta 51: 49 japonica 42: 142 jullieni 56: 128 lecythis 56: 127 limosa 60: 105 lustrica 57: 69; 60: 84-5. 87, 105 malleata 56: 127 nickliniana 47: 12 oxytropis 56: 128 ponderosa 51: 49 porata 60: 87, 105 spillmanii 52: 127 subglobosa 44: 36 subpurpurea 51: 49 sulculosa 48: 143 transversa 55: 83 vivipara 50: 17. 19; 5i: 48 paludinaeformis, Viviparus 50: 127 Paludinella 53: 68 Paludomus 54: 65 paludosa. Ampullaria 41: 53-4; 45: 14 paludosa, Polygyra 40: 90; 48: 34 paludosa, Pomacea 50: 37-8; 52: 141; 55: 125-6; 57: 66 paludosa miamiensis. Pomacea 50: 38 Paludotrochus 44: 35 palustris, Anguispira. see A. alternata p. palustris. Lymnaea 37: 25. 78; 38: 11. 93; 40: 60, 114; 41: 20: 42: 16, 19, 56, 129- 30; 43: 134: 44: 109; 46: 101; 47: 1-2. 122; 52: 125; 53: 78, 134. 139-40; 54: 7: 55: 18 palustris fusca, Lymnaea 52: 59 palustris haydeni, Lymnaea 47: 2 palustris nuttalliana. Lymnaea (Stagnicola) 42: 121; 47: 2, 122. 124; 48: 47; 51: 72; 53: 139 palustris terebra, Lymnaea 52: 58 palustris wyomingensis. Lymnaea (Stag- nicola) 47: 3. 124; 48: 106 palustris. Potamides 49: 79 palustris. Stagnicola 40: 84-5: 48: 18-9, 109; 49: 11-3; 50: 115; 58: 78 palustris buttoni. Stagnicola 48: 18 palustris elodes, Stagnicola 44: 45; 45: 117; 49: 11-2; 50: 115 palustris magister. Stagnicola 48: 17 palustris newfoundlandensis, Stagnicola 49: 12 palustris nuttalliana, Stagnicola 46: 98; 48: 17-8; 49: 12; 50: 14, 115; 54: 29; 56: 54 palustris papyracea, Stagnicola 49: 10 palustris perpalustris. Stagnicola 49: 11 palustris ungava. Stagnicola 49: 10-1 palustris wyomingensis. Stagnicola 40: 84: 48: 18-9; 50: 14 palustris, Trochus 37: 50 pampasensis, Clausilia (Nenia) 58: 80 pampasensis, Nenia 35: 94: 58: 80 pamphorodon, Fauxulus 41: 108 panamanensis. Tellina 58: 145 panamensis. Acar 45: 127-8. 142 panamensis, Cadulus 55: 121-2 panamensis. Condylocardia 60: 7 panamensis. Cyclostremiscus 59: 81 panamensis. Cyrenoida 45: 69, pi. 3 panamensis, Engina 45: 143 panamensis. Melampus 46: 44 panamensis, Oxynoe 56: 80. pi. 8 panamensis, Pseudochama 47: 84 panamensis. Pyramidella 52: 46 panamensis. Solemya (Petrasma) 37: 41; 55: 121 panamensis. Tegula 37: 126 panamensis. Tellina 58: 105, 145 Panamicorbula 45: 105 inflata 48: 120 Pandora 59: 103: 60: 27 arenosa 49: 119 glacialis 40: 23 (Clidiophora) gouldiana 38: 49; 56: 142 trilineata 41: 15; 51: 48; 58: 57 pandorae, Micrarionta 46: 115 pannosa, Macrocallista 37: 129 pannosum, Cerion 56: 7 pannosum copium. Cerion 56: 7 pannucula mexicanus. Pachychilus 44: 85 pannucula tumidus. Pachychilus 44: 85 Panomya arctica 40: 25: 49: 34: 50: 90 norvegica turgida 51: 124 Panopea 49: 104 (includes Panope) bitruncata 35: 99; 42: 85; 49: 104, 133; 58: 59 floridana 35: 99 generosa 44: 92 globosa 47: 46 smithii 43: 24. pi. 2 panormitanum. Deroceras 58: 16, 67-8 Pantagruelina 60: 58 -- subgenus of Cyclodontina pantagruelensis. Bulimus 60- 57 pantagruelina. Cyclodontina 60: 106 pantagruelina. Helix (Cochlodina) 60: 58. 106 pantagruelinus, Bulimus 60: 57 248 THE NAUTILUS Paravitrea pantagruelinus, Odontostomus 60: 58-9 panthera, Achatina 43: 86 panthera berevoensis, Achatina 43: 85 pantherina, Cypraea 40: 129 papalis, Voluta, see V. mitra p. Paphia 36: 51; 43: 110; 48: 4; 56: 42 alta, see tenerrima a. bifurcata 52: 139 grata 47: 46 grigona 60: 57 (Ruditapes) japonica 49: 2 orbella, see staminea o. philippinarum 52: 140 restorationensis 43: 120 ruderata, see staminea r. staminea 38: 70; 43: 50, 120; 44: 92; 47: 102; 52: 45: 56: 42 staminea orbella 43: 50 staminea ruderata 43: 50; 44: 92; 56: 42 tenerrima 43: 120; 44: 48-9 tenerrima alta 44: 48-50 paphia, Venus 49: 119 papilio, Ochthephila (Discula) 36: 45 papulosa, Aeolidia 55: 80-1 papillosa, Fasciolaria 55: 64 papulosa acmensis, Fasciolaria 55: 64 papillosa duplinensis, Fasciolaria 55: 64 papillosa, Goniobasis 41: 52; 42: 67 papillosa, Melania 38: 48; 42: 29 papillosa, Melibe 35: 50 papuana, Modiola 51: 92 Papuina 38: 36; 48: 35-6; 49: 67, 88-90; 50: 53; 57: 42; 59: 94 -- also as subgenus of Helix albocarinata 49: 88-91; 50: 53-4 albocarinata trobriandensis 49: 88-91 atalanta, see williamsi a. blainvillei 57: 65 brunieriensis 50: 53 gartneriana 57: 64-6 lambei 59: 94 lambei novohibernica 59: 94. pi. 9 novohibernica, see lambei n. poiretiana 57: 65-6 rollsiana 49: 89-91; 50: 53 tayloriana 49: 88-90 trobriandensis 50: 53-4 -- see also albocarinata t. weeksiana 59: 94, pi. 9 wiegmanni 49: 91 williamsi 49: 88-9, pi. 5; 50: 53-4 williamsi atalanta 50: 53-4 papyracea. Stagnicola. see S. palustris p. papyratia. Pyrula 37: 55; 39: 86 Papyridea spinosa 49: 118 Parabithynia 41: 108 Parachondrella -- subgenus of Chondropoma Parachondria 48: 66 -- subgenus of Chondropoma Parachondrops -- subgenus of Diplopoma Paracigulina 50: 108 paradisi. Varicella, see V. arcuata p. paradoxus, Chrysostoma 60: 55 Parahelix 44: 68-9; 48: 136 -- subgenus of Sagda paralella, Atys 60: 56 parallela, Cepolis 40: 88 parallela, Chaetopleura 58: 100 parallela, Euglandina, see E. rosea p. parallela, Ferrissia 41: 93; 42: 18, 94, 133; 44: 46, 130; 48: 110; 49: 44-6; 58: 13 parallela, Helix 56: 88 parallela. Varicella 48: 85 parallelopipedon, Diplodon 47: 75 parallelum, Buccinum, see B. glaciale p. parallelus, Helicodiscus 36: 25: 37: 66; 40: 48, 120; 41: 20. 34, 52-3, 128; 42: 20, 86- 7, 135: 43: 42-4, 68, 119; 44: 38, 45; 45: 34, 117; 47: 139; 48: 57-8, 81, 115; 49: 100; 50: 120; 51: 57, 63, 106; 52: 15, 94; 53: 47, 87; 55: 8, 14, 15; 56: 55; 57: 132, 140; 58: 25-6, 110; 59: 28, 91 Paramelania 38: 111 Paramentaria duponti 43: 135 parana, Leptinaria 39: 79, pi. 4 Parana, Subulina 39: 144 Paranassa -- subgenus of Ilyanassa Paranerita 41: 108 Paroncidium 51: 87-8 Paraperonia 51: 87-8 fidjiensis 51: 87 Parapholas californica 44: 92; 51: 101: 56: 42 Parapholyx 42: 82; 46: 100: 50: 30-1; 51: 107; 55: 132; 58: 35; 59: 70 corrugata, see packardi c. costata. see effusa c. diagonalis, see effusa d. effusa 42: 120-1; 47: 90-1; 50: 30-1: 52: 35; 55: 16-7 effusa costata 42: 81-2; 47: 90 effusa diagonalis 42: 82; 47: 90; 50: 31 effusa klamathensis 55: 16-7 effusa nevadensis 47: 90-1 klamathensis, see effusa k. mailliardi 38: 66; 55: 16-7 nevadensis. see effusa n. packardi 55: 132 packardi corrugata 55: 132. pi. 8 solida 47: 90-1 Paraprososthenia gredleri 58: 134-5. pi. 6 parasitica. Chama 47: 82 Parastarte triquetra 37: 54 Parastrophia 37: 98; 40: 134 paravicinii. Partula 47: 24, pi. 3 Paravitrea 42: 90: 43: 122; 44: 33; 45: 36 -- also as subgenus of Vitrea andrewsae 44: 17; 46: 58 capsella 42: 92; 44: 17. 128-9; 46: 91; 48: 106; 53: 48, 85 capsella lacteodens 41: 142 dentata, see walkeri d. 249 Paravitrea INDEX TO lacteodens, see capsella 1. and pla- centula 1. lamellata, see multidentata 1. lamellidens 42: 88; 44: 129 multidentata 42: 88-90; 43: 67; 44: 129; 47: 138; 48: 57-8; 52: 95 (Paravitreops) multidentata lamellata 42: 88-90 pilsbryana 42: 90 placentula 46: 58 placentula lacteodens 46: 58; 53: 85 (Paravitreops) variabilis 42: 89-90, 93 walkeri 42: 88-90 (Paravitreops) walkeri dentata 42: 88, 90 Paravitreops -- subgenus of Paravitrea parawanensis. Oreohelix 54: 95, pi. 8 parcipicta, Margarites (Lirularia) 37: 43; 44: 93 pardalina, Columbella 60: 56 pardalis, Veronicella 41: 129 pariensis, Obeliscus 57: 127 parietalis, Vertigo, see V. modesta p. parisiensis, Cylindrella 40: 70 parkeri. Physa, see P. ancillaria p. parksi. Teredo 52: 118 parma, Limacella 35: 79, 118 parma. Oreohelix 48: 48 Parmacella 48: 143 parmaleei, Pecten 50: 25 Parreysia 36: 43 modesta 36: 43-4 simpularis 36: 43 parriana, Cepolis 40: 88 Parthenia caelata 39: 144 partumeium, Musculium 37: 30; 53: 78; 59: 87 Partula 37: 109, pi. 6; 39: 19-21; 44: 141; 47: 24, 113-4; 50: 137; 57: 105 aurantia 47: 114 bulimoides 50: 53 carterensis 47: 24 cytherea 44: 141 dendroica 37: 114-6, 118 dentifera 37: 112 formosa 37: 112 gerardensis 47: 24 gibba 55: 2 grisea 50: 53 hyalina 39: 20 lanceolata 44: 141 lirata 44: 141 mirabilis 37: 116. 118 montana 44: 141 mooreana 37: 110, 114 nematoraphe 44: 141 occidentalis 50: 53 olympia 37: 112. 114-6. 118 otaheitana 37: 112 paravicinii 47: 24, pi. 3 radiolata rushii 39: 21 radiolata strigata 39: 21 rushii, see radiolata r. salifana 39: 19 similaris 50: 53 stevonsoniana 44: 141 strigata, see radiolata s. suturalis 37: 110, 112, 115 taeniata 37: 116; 47: 114 thurstoni 44: 141 tohiveana 37: 110, 112-6, 118 zebrina 42: 70 Partulina 42: 71 parva, Amnicola, see A. limosa p. parva, Carunculina 36: 100; 37: 100; 39: 92; 44: 44, 47, 90; 59: 110 parva, Crassinella 49: 117 parva, Fossaria 42: 104, 125; 43: 42; 44: 45, 88 parva, Galba 40: 51 parva, Geomelania, see G. gracilis p. parva, Lampsilis 36: 100; 44: 90; 47: 147 parva, Lithasia 35: 59 parva, Lymnaea (Galba) 38: 43; 40: 59; 48: 114 parva sterkii, Lymnaea 40: 55, 59 parva, Olivella, see O. biplicata p. parva, Poteria, see P. corrugata p. parvaturris, Physa, see P. canadensis p. parvicallum Teinostoma 59: 3-4, pi. 2 parvicaymanense, Chondropoma 56: 3 parvidens, Gastrocopta, see G. pellucida p. Parvilucina -- also as subgenus of Phacoides tenuisculpta 38: 24 Parviterebra 37: 106 separanda 37: 106 thyrae 37: 106 Parviturbo 59: 54, 59 calidimaris 59: 56 francesae 59: 56-7 rehderi 59: 54 tuberculosa 59: 56 weberi 59: 55 zacalles 59: 57 parvula, Fusconaia, see F. flava p. and F. rubiginosa p. parvula, Lyrodes 52: 88 parvula, Vallonia 40: 16; 44: 44: 45: 116 parvula. Vertigo 57: 127-9 parvulum, Anchistoma 44: 33 parvulum, Pisidium 36: 39-40; 37: 22 parvulus, Medionidus 37: 58-9, 99-100 parvum. Calliostoma. see C. canali- culatum p. parvum, Pleurocera 56: 132 parvus, Gyraulus 40: 50; 42: 58, 105; 43: 42, 119; 44: 46, 88; 45: 110, 118; 52: 15, 61; 53: 78, 134; 54: 128-30, 144; 56: 54; 57: 45-6; 58: 12, 69; 59: 21. 29 parvus walkeri, Gyraulus 42: 105 parvus, Phos 50: 20; 51: 90 parvus intricatus, Phos 51: 90 250 THF NAUTILUS Paucicostatum parvus, Planorbis 36: 24; 38: 11; 39: 126; 40: 17, 55, 61, 114; 41: 20, 85; 42: 94; 44: 110; 48: 48 parvus, Spiraxis (Pseudosubulina) 52: 134; 53: 10, 51, 94, pi. 9 parvus. Triton 58: 36 Paryphanta 45: 31, 142 patagonica, Radiodiscus 35: 49; 52: 115 patagonica, Stephanoda 52: 115-6 Patella 43: 137; 44: 24-5; 46: 36, 104; 52: 44 antiqua 37: 46 antiquata 37: 46 apicina 40: 101 barbadensis 37: 46 capensis 37: 46 cetra 37: 47 clavula 37: 47 coerulescens 37: 47 compressa 41: 112 cuspidata 37: 47 depressa 37: 71 ferruginea 46: 103 fornicarius 37: 48 frondea 37: 48 jubar 37: 49 laciniosa 37: 49 lacinosa 37: 49 lacustris 35: 57; 39: 46 lamanonii 45: 25 langula 37: 49 lateraria 37: 49 lunicula 37: 49 mexicana 45: 79; 46: 111; 52: 44-5 miniata 41: 112 optima, see stellaeformis o. pallida 45: 25 pectinata 37: 50 rosea 46: 121 rustica 37: 51 saccharinoidea 37: 51 spathula 37: 51 stellaeformis 40: 139; 60: 55 stellaeformis optima 40: 138 surgeonella 37: 51 tenuillrata 38: 121 toreuma 38: 121 vulgata 46: 103 Patellipurpura patula 43: 137 patelloides, Ancylus 38: 75 patelloides. Lanx 38: 73-5 Patellopsis 59: 108 patina. Acmaea 36: 71; 47: 53 patina cribraria, Acmaea 36: 71 patina fenestrata, Acmaea 36: 71 patina, Pleurodonte, see P. fuscolabris p. Patinopecten -- also as subgenus of Pecten oweni 50: 57 patriarcha, Bulimus 50: 99 patriarchus. Bulimulus, see B. deal- batus p. patris. Cipangopaludina, see C. ventri- cosa p. patsaligense. Pleurobema 36: 81 pattersoni, Gyraulus 51: 129-30 pattinsonae, Amphidromus 57: pi. 6 pattinsonae, Amphidromus (Syndromus) 57: 16 Patula 57: 108 -- also as subgenus of Helix alternata 42: 135 angulifera 44: 33 cooperi 43: 70 cronkhitei, see ruderata c. gabbiana, see haydeni g. haydeni gabbiana 57: 144 hemphilli 57: 144 hemphilli oquirrhensis 57: 144 hemphilli utahensis 57:144 idahoensis 57: 144 idahoensis wassatchensis 57: 144 obtusata 44: 33 oquirrhensis, see hemphilli o. ruderata cronkhitei viridula (sic) 48: 71 utahensis, see hemphilli u. viridula, see ruderata cronkhitei v. wassatchensis, see idahoensis w. patula catemascensis. Ampullaria 36: 36 patula, Goniodiscus 38: 86; 39: 80 patula, Helix 38: 86 patula, Melongena 45: 79; 46: 111; 52: 45; 57; 4, pi. 2 patula. Patellipurpura 43: 137' patula, Pleurobema 57: 16 patula, Pyramidula (Gonyodiscus) 38: 86 patula, Siliqua 39: 108: 47: 102 patula nuttallii, Siliqua 43: 50 patula, Solen 48: 73 patula. Thais 35: 121; 38: 62; 46: 44-5; 52: 46 patullum, Buccinum 37: 50 patuloides, Lepidopleurus, see L. comptus p. Patulopsis 40: 64 patulum, Buccinum 37: 50 patulus. Discus 45: 85; 46: 58-9; 47: 147; 48: 36, 58; 49: 100; 52: 13-4; 53: 87, 123; 55: 8, 21; 58: 25-6, 128 patulus angulata. Discus 52: pi. 2 patulus angulatus. Discus 52: 13; 53: 85, 143; 55: 21 patulus brooksi. Discus 52: 13, pi. 2 patulus carinatus. Discus 53: 143; 55: 21 patulus. Unio 57: 14. 16 patu.xentium, Caecum 39: 66-7 patzcuarensis. Spiraxis 53: 52, 89 paucicostata, Anguispira, see A. alter- nata p. paucicostata. Polygyra 44: 81, 83 -- see also P. richardsoni p. paucicostatum. Cerion 42: pi. 4 251 Paucicostatus INDEX TO paucicostatus, Pecten 50: 54-5; 58: 99 -- see also P. protranquebaricus p. paucilirata, Acanthina 38: 21 paucilirata, Monoceros 58: 100 paucilirata. Retinella, see R. indentata p. pauciplicatum. Comptopallium 58: 53 paucispira. Austroselenites 54: 134 paula, Carunculina 49: 81 paula. Lampsilis 37: 100 pauli, Cerion 57: 60-1, pi. 7 pauli, Didianema 59: 12, pi. 2 paulucciae. Vitrina 42: 138-9 pauper, Gonyodiscus 41: 40 paupercula, Mitra 45: 54 paupercula. Varicella 49: 27 paupercula tumens. Varicella (Sigma- taxis) 48: 85, pi. 3; 49: 7 paupercula, Veronicella (Sigmataxis) 48: 85 pauperculum, Pisidium 35: 111-2 pauperculum, Pleurobema, see P. coc- cineum p. Paurodiscus 48: 129; 59: 110 -- subgenus of Pseudomalaxis paviei, Megaustenia 43: 52 pavonius, Strophitus, see S. edentulus p. and S. rugosus p. paxillus, Oliva 48: 70 Payenia 41: 125 Payettia 38: 143; 58: 35 paysanduensis, Planorbis 44: 33 paytensis, Columbella 37: 124 pazi. Murex 59: 142 paziana, Tellina 55: 121 Paziella 59: 142-3 pealei, Geomelania 48: 87 pealei, Loligo 56: 61 pealii, Conus 37: 55 pealii, Loligo 58: 62 pearmanaeana, Adamsiella 48: 64 pearmanaeana, Brachypodella (Mycho- stoma) 49: 58 peaseana, Planamastra 36: 17 peasei, Cypraea 36: 122; 50: 80; 57: 26, 82 peasei, Mitra 36: 122 pecosensis, Bulimulus. see B. dealbatus p. Pecten 36: 18; 38: 112; 40: 72, 105; 41: 16; 44: 126; 45: 107, 134; 47: 36, 62-3; 49: 27; 50: 27. 56; 51: 47, 68; 52: 102; 58: 54; 59: 69; 60: 27, 33 (Aequipecten) acanthodes 38: 120 acquisulcatus 36: 34 adscensionis 45: 108 aequisulcatus, see circularis a. albolineatus 49: 28-9 alipus, see pesfelis a. ambiguus 50: 27 amplicostatus. see gibbus a. anatipes 50: 26 antillarum 49: 117; 56: 124, pi. 14 aspersus 50: 55 barretti 50: 57 borealis, see concentricus b. and gibbus b. bornii 50: 25 brunneus 38: 112 burnetti 50: 26 cambodicus 50: 56 (Cyclopecten) catalinensis 45: 65, pi. 4 caurinus 47: 36; 51: 144; 54: 68 circularis 45: 82; 55: 121 (Plagioctenium) circularis aequisulca- tus 37: 41 clarkensis 43: 23, pi. 2 clavatus 50: 26 (Placopecten) clintonius 38: 112 cocosensis 45: 65 concentricus, see irradians c. concentricus borealis 38: 114 convexus 50: 26 corneus 47: 63 cosibensis 50: 25 cuneatus 49: 27-8 danicus 36: 59 das-guptai, see tauroperstriata d. dendyi 50: 26 dentatus 37: 127 dislocatus 38: 113; 51: 93 eboreus 49: 133 elongatus 50: 25 (Lyropecten ) eulyratus 56: 110, 123, pi. 14 exasperatus 37: 55; 38: 120; 52: 102; 58: 57 excavatus 46: 113 (Chlamys) felipponei 36: 58 fimbriatus 50: 56 flabellum 47: 63-4 -- see also kunkumana f., vaughani f., and vaun f. flexuosus' 50: 26 fricatus 38: 116 fulvicostatus 50: 25 fuscus 38: 112 (Plagioctenium) gibbus 38: 113, 115; 39: 83; 49: 132-3; 54: 21; 58: 57 gibbus amplicostatus 38: 113; 54: 21 (Plagioctenium) gibbus borealis 38: 49, 114 gibbus irridians 37: 54 (Placopecten) grandis 38: 112: 39: 39, 131; 40: 23; 44: 99; 50: 56; 56: 141; 57: 67; 59: 69 gronlandicus 54: 5 hastatus 38: 91; 51: 119 hastatus pugetensis 51: 119 healeyi 41: 93 (Aequipecten) heliacus 38: 119 hericius 43: 50 heteroglyptus 50: 91 hirasei 50: 27 (Chlamys) imbricatus 49: 117; 55: 46; 56: 110; 58: 38 (Chlamys) imbricatus mildredae 55: 46. 106, pi. 3 252 THE NAUTILUS Pedalion inaequivalvis 49: 29 intuscostatus 50: 91 irradians 38: 113-5; 39: 39; 41: 15; 56: 141; 57: 67; 58: 24. 57, 60; 59: 69 -- see also gibbus i. irradians concentricus 38: 114 (Chlamys) irregularis 49: 2; 50: 58 islandicus 40: 23; 47: 102; 51: 93, 118-9; 54: 5 islandicus pugetensis 40: 77; 51: 125 jacobaeus 38: 91 jordani 51: 125 (Lyropecten) kallinubilosus 56: 110, 124. pi. 14 krenneri 50: 27 kunkumana 47: 64 kunkumana flabellum 47: 64 laqueatus 58: 54 laticostatus 38: 116 lineolaris 38: 113 (Chlamys) liocymatus 38: 119 (Patinopecten) lohri 41: 93-4; 50: 57 loxeoides 49: 29 loxoides 49: 27. 29 magellanicus 35: 30-1; 38: 32.-3; 44: 99; 50; 56 mandannaensis 50: 58 maximus 58: 54 medius 38: 116 (Chlamys) middlemissi 50: 55 (Chlamys) mildredae 56: 110, 123. pi. 12 -- see also imbricatus m. monotimeris 36: 34 moorei 50: 56 morickei 50: 55-6 mucosus 52: 102 (Chlamys) muscosus 52: 102 (Chlamys) multistriatus 50: 55 natans 47: 62-3 natoriensis 50: 25 nodosus 38: 94; 58: 57 noduliferus 49; 27-8 noetlingi. see prototranquebaricus n. notosyriacus 50: 58 nucleus 38: 113. 115; 49: 117 opercularis 47: 63; 50: 56-7 ornatus 38: 61, 118; 39: 83; 58: 38 (Chlamys) oweni 41: 93; 50: 56-7 parmaleei 50: 25 paucicostatus 50: 54-5; 58: 99 -- see also protranquebaricus p. pernomus 55: 121 pes-felis 50: 25, 107 (also spelled pesfelis) pesfelis alipus 50: 25 phoeniciensis 50: 58 phrygium 38: 120 pictus 41: 93; 50: 56-7- plica 50: 26 (Chlamys) prototranquebaricus noetlingi 50: 54-5 (Chlamys) protranquebaricus pauci- costatus 50: 54 pugetensis 51: 118-9 -- see also hastatus p. and islandicus p. pulchricostus 50: 26 purpuratus 37: 127; 38: 113 radiatus 47: 63 radula 38: 118; 49: 29; 50: 25 raveneli 38; 117-8; 52: 28; 58: 57 (Chlamys) robinaldinus 50: 57 russatus 49: 28 sanguinolentus 50: 57 (Chlamys) sentis 38: 118; 56: 110 sibyllae 49: 28 singaporinus 50: 27 sinomarinus 50: 27 (Chlamys) smegmatus 40: 67 sowerbi 38: 113 spinosus 50: 55 squamosus 40: 67 squarrosus 58: 99 subnodosus 37: 127; 46: 113; 52: 43, 45 (Chlamys) suteri 47: 63 swiftii 50: 24-5, 92 syriacus 50: 58 (Chlamys) szeremensis 50: 27 (Chlamys) tauroperstriata das-guptai 50: 55 tenuicostatus 38: 112; 50: 55-6 (Euvola) tereinus 38: 115-6 thomasi 47: 62 tigris 50: 25 tolmani 43: 23. pi. 1 tranquebaricus 50: 27 tumbezensis 37: 127; 50: 55 turgidus 38: 114 vaughani 47: 64 vaughani flabellum 47: 64 vaun 47: 64 vaun flabellum 47: 63-4 vaun wythei 47: 63 ventonensis 50: 57 ventricosus 37: 128 (Chlamys) vredenburgi 50: 55 waluensis 47: 62-3 wythei 47: 63 -- see also vaun w. (Variamussium) yukonense 50: 58 (Entolium) yukonensis 50: 58 ziczac 52; 28 pectinata. Cuspidaria 51: 100 pectinata, Glycymeris 36: 11; 39: 82; 49: 116; 58: 57 pectinata, Lucina 54: 21; 60: 19 pectinata. Patella 37: 50 pectinatus, Phacoides 39: 83 pectinula. Crenella 40: 23 pectinulatus, Ischnochiton (Lepidozona) 37: 43 pectorosa, Lampsilis 41: 139 Pedalion alata 49: 117 anomioides 52: 45 bicolor 38: 61 253 Pedalion INDEX TO chemnitzianuni 38: 61; 46: 45 listeri 49: 117 semiaurita 49: 117 Pedicularia 38: 106; 40: 17-8; 59: 125-6 californica 59: 124 pediculus, Acmaea 52: 44 pediculus, Trivia 56: 17 Pedipes biangulatus 40: 142 lirata 50: 100 unisulcatus 40: 142 pedroana, Cerithiopsis 42: 3 pedroana, Littorina 38: 16 pedroana, Mopalia 45: 101, pi. 7 pedroana, Odostomia (Ividella) 37: 42 pedroana, Olivella 36: 34; 44: 93; 57: 73, 76-9 pedroana, Trifora 37: 42 pelagicus, Hyaloteuthis 54: 71 peleronta, Nerita 35: 121; 38: 61 pellicostus, Lagochilus 55: 43 pellis-serpentis, Chlorostoma 36: 51 pellucens, Auriculastrum 38: 56, 60 pellucens, Varicella 49: 26 pellucida, Chama 37: 41; 47: 82 pellucida, Coryphella 49: 65 pellucida, Cuspidaria 40: 24 pellucida hordeacella, Gastrocopta37: 33, 65-9: 38: 42; 41: 52; 47: 16-7; 48: 114-5; 52: 15; 58: 69; 59: 123-4 pellucida parvidens, Gastrocopta 59: 123 pellucida, Helicolimax 42: 137 pellucida, Helix 42: 136-38 pellucida, Lamellaria 52: 28 pellucida, Lima 44: 126 pellucida, Melibe 36: 95 pellucida, Vermicularia 52: 46 pellucida, Vitrina 42: 136, 139 pellucidus, Mytilus, see M. edulis p. pellucidus, Vitrinus 42: 137 peloritanum, Cerithium 56: 23, 28 peloronta, Nerita 54: 67 ■pelta, Acmaea 50: 48; 53: 22 pembertoni, Ataphrus 43: 24. pi. 1 pembertoni, Clavus 58: 67 pembertoni, Imaclava 58: 67 penicillata, Anachis 37: 41 penicillata, Pseudomelatoma 52: 21-2 penicillata semi-inflata, Pseudome- latoma 52: 21 peninsulae, Ferrissia 41: 54 peninsulae, Spisula, see S. solidissima p. peninsularis, Gastrocopta, see G. contracta p. penita, Pholadidea 43: 51; 56: 42 penita concamerata, Pholadidea 45: 52-3 penita, Pholas 40: 81 penitens, Polygyra 36: 141; 44: 18; 51: 141 pennsylvanica, Lithasia, see L. obovata p. pennsylvanica, Lucina 45: 108; 52: 88-9 pennsylvanica, Phacoides 38: 61; 49: 117 pennsylvanica, Polygyra 43: 67; 44: 129; 46: 18; 48: 106; 50: 119 pennsylvanicus, Mesodon 57: 42-4; 58: 128 pensylvania, Venus 37: 50 pensylvanica, Venus 37: 50 pentadactylus, Periploma (Albimanus) 48: 118, pi. 6 pentadelphia, Retinella 46: 58-9 pentagonalis, Clathrodrillia 52: 29 pentagonalis, Drillia 54: 52 pentapleura, Bellaspira 54: 51 pentalopha, Turbonilla (Mormula) 37: 42 pentodon, Gastrocopta 37: 65-6, 68; 38: 42; 40: 47-8; 42: 20, 66; 43: 44, 68, 118; 47: 16-7; 48: 57, 59, 115; 50: 98, 121; 51: 57; 52: 94; 53: 47, 88; 55: 9; 57: 131; 58: 69 pentodon floridana, Gastrocopta 42: 20 pentodon gracilis, Gastrocopta 48: 106; 50: 98 pentodon tappaniana, Gastrocopta 40: 16; 42: 20 pentodon, Vertigo 59: 28 peoriensis, Succinea 59: 28 pepiniana, Anodonta, see A. grandis p. Peplum 50: 26 peponum. Pupa 47: 60 peracuta, Aninicola 39: 12 peracuta, Pleurodonte 49: 55 peracutissima, Pleurodonte (Dentellaria) 49: 55 peracutissima martiniana, Pleurodonte (Dentellaria) 49: 55 peraffinis, Hyalosagda 49: 52 peramabilis Acmaea 38: 27; 51: 124 perampla, Lymanea, see L. stagnalis p. perca, Gyrineum 47: 57 perca edgerlyi, Gyrineum 47: 57, pi. 6 percarinata, Fluminicola 48: 16 percarinata, Helisoma, see H. antrosa p. percarinatus. Planorbis, see P. antrosus p. and P. bicarinatus p. percompressa, Montacuta 46: 76 perconfusa, Valvata 35: 24 -- see also V. tricarinata p. perconicus, Microceramus 40: 90 perdepressa. Hyalosagda 49: 52 perdepressa brevior, Hyalosagda 49: 52 perdepressa, Valvata 44: 108; 53: 140 perdepressa walkeri, Valvata 53: 140 perdepressus, Stilifer 38: 97 Perdicella 42: 71 perditicollis. Fluminicola 48: 16 perdix, Dolium 55: 2; 60; 55 perductorum, Drymaeus 57: 29, pi. 6 pereger, Limnaea 37: 71; 55: 19. 106 -- see also L. peregra peregra pseudo-elongata, Gulnaria 52: 59 peregra, Lymnaea 39: 21-2; 42: 144; 43: 36; 52: 136-7 -- see also L. pereger peregra geisericola, Lymnaea 38: 92-3 peregrina, Polygyra 45: 130 peregrinus, Ischnochiton 58: 101 254 THE NAUTILUS Peruensis Perenna -- subgenus of Lucidella perexiguuni. Carychium 51: 128 perfecta, Urocoptis, see U. scobinata p. perforans, Crepidula, see C. nummarius p. perforata, Leptinaria 39: 144 perigraptus. Mesodon 55: 9. 97 peripherica weberiana. Oreohelix 56: 52-3 Periploma 47: 81; 48: 118-9 alta 47: 85 angulifera 48: 119 discus 47: 85 fragilis 40: 23 inaequivalvis 43: 35 leanum 35: 32; 56: 141 lenticularis 47: 85 » (Albinianus) pentadactylus 48: 118, pi. 6 planiuscula 37: 122, 128; 47: 85 pleniuscula 47: 47 sulcata 57: 36 Perirhoe 37: 62-3 periscopia. Solariella 40: 140 Perissitys 40: 144 Perissolax brevirostris 40: 144 peristephes, Semicassis, see S. cica- tricosa p. Peristernia chlorostoma 36: 122; 52: 118; 58: 122-3; 60: 56 marmorata 36: 122 nassatula 60: 56 newcombi 36: 122 xanthostigmata 36: 122 peristomatus, Bulimulus 41: 95 perlaevis, Mesomphix 48: 80; 50: 121; 51: 56-7, 106; 52: 97; 55: 8 perlaevis vulgatas, Mesomphix 47: 144, 147; 53: 87; 58: 127 perlonga, Urocoptis, see U. mellita p. perlucidus, Leiostracus 53: 28 Permochiton australianus 41: 105 Perna 38: 56; 60: 26-7 californica 40: 81-2, 135 costellata 40: 81 hawaiiensis 40: 135 incisa 40: 81 pernodosa, Quadrula. see Q. pustulosa p. pernodosus. Unio 36: 77 pernoides, Area 46: 29 pernoides, Byssoarca 46: 28 pernomus, Pecten 55: 121 pernula, Leda 40: 22 Peronaeus -- subgenus of Bostryx Peronella 51: 86, 88 Peronia 51: 86-8 peronii 51: 86 peronii, Onchidium 51: 85 peronii. Oncus 51: 86 peronii, Peronia 51: 86 peronii, Spirula 38: 62 Peronina 51: 87-8 alta 51: 87 Peronium 51; 85, 88 perornatus. Trachydermon 58: lOO Perotrochus 35: 136 perpalustris, Stagnicola, see S. palustris p. perpinguis, Alectrion 36: 34; 37: 41; 44: 93 perplana, Venericardia 58: 57 perplexa rangiana, Dysnomia 44: 44, 48 perplexa, Fossaria 42: 103 perplexa, Lymnaea (Fossaria) 45: 131-2; 47: 9 perplexa, Varicella 48: 85 -- see also V. laeviusculus p. perplexus, Conus 57: 4 perplicata, Amblema 36: 76; 56: 144 perplicata elliotti, Amblema 36: 75-6 perplicatum, Cyclostoma 37: 90 perpolita, Polygyra 45: 136 Perpusilla 54: 82; 55: 52-3 -- subgenus of Salasiella perpusilla, Salasiella (Perpusilla) 54: 81-2, 84, pi. 6 perrieri, Entovalva (Devonia) 45: 142 perrini, Ostrea. sr. O. titan p. perrostrata, Cuspidaria 49: 119 perrugatus, Urosalpinx 49: 137-9: 56: 36 perryae, Tellina (Tellinella) 49: 136, 139; 51: 66 persculpta, Lucidella 48: 13-4 pel' ica, Thais 60; 55 persona, Acmaea 50: 49 personata, Helicogona 44:71 perspectiva. Helix 38: 85 perspectiva carinata. Helix (Patula) 55: 21 perspectiva, Goniodiscus 43: 68 perspectiva, Vallonia 38: 43; 52: 15; 54: 30-1: 55: 144; 58: 69 perspectiviunculus, Trochus 37: 50 perspectivus. Discus 45: 85 perspectivus. Gonyodiscus 38: 65; 41: 134; 44: 17. 22; 45: 85; 46: 91; 48: 81; 50: 120; 51: 57 perspectivus, Sigaretus 37: 56; 41: 14; 51: 49, 92 perspectivus, Sinum 37: 126; 39: 86; 49: 137; 54: 20: 58: 60 perspeculatus, Trochus 37: 50 perspicula, Lamellaria 35: 87 perspinosa, Melongena, see M. corona p. and M. subcoronata p. perstriata. Goniobasis 38: 135 perstriata. Varicella 49: 27 persulcatus, Spiraxis 53: 94 -- see also S. nitidus p. persulcatus. Unio (Nephronaias) 35: 24-5 pertenuis. Planorbis, see P. tenuis p. pertenuis. Retusa 35: 32: 40: 22; 51: 126 pertusa. Lacuna, see L. vincta p. pertusa. Terebra 36: 123 peruana. Nenia 35: 95 peruana, Peruinia 58: 84 peruensis. Thais 37: 121. 124 255 Peruinia INDEX TO Peruinia bradina, see flachi b. flachi 58: 84 flachi bradina 58: 84, pi. 3 peruana 58: 84 perula, Tellina 60: 57 peruviana, Amblema 36: 48; 39: 88; 44: 89; 53: 138 peruviana, Anomia 37: 128 peruviana, Oliva 37: 123 peruviana, Physa 44: 106 peruviana, Pteria 37: 127 peruvianus, Drymaeus, see D. torallyi p. peruvianus, Radiodiscus 58: 30 peruvianus, Strombus 52: 46 pervel-sa, Balea 36: 67 perversa. Corona 57: 47 perversa, Pyrula 53: 23 perversa, Spirotropis 60: 93 perversa nigrocincta, Triphora 56: 143 perversibiliformis, Murex 37: 50 perversibilis, Murex 37: 50 perversuni, Busycon 35: 34; 36: 10; 37: 53-4; 38: 2, 93; 39: 85; 40: 100, 138; 41: 14; 44: 30; 52: 17; 53: 23-6; 54: 20, 128; 57: 143-4, 60: 34 perversum contrarius, Busycon 36: 10-1 perversum kieneri, Busycon 53: 24 perversum obrapum, Busycon 36: 10 perversum, Fulgur 40: 138; 49: 132-3 perversus, Amphidromus 37: 86 perversus, Brachymimulus 42: 105 perversus, Murex 37: 50; 52: 20; 53: 23, 25-6, pi. 7 pervia, Lymnaea 52: 57 perviridis, Tethys, see T. willcoxi p. pesasininus, Spondylus 51: 38 pes-felis, Ostrea 50: 25-6 pes-felis, Pecten 50: 25, 107 pesfelis alipus, Pecten 50: 25 pespelicani, Aporrhais 44: 3 pespelicani bilobata, Aporrhais 44: 4 petallinus, Donax 52: 45 Petaloconchus complicatus 40: 77 innumerabilis 48: 116, pi. 6 montereyensis 37: 42 octosectus 58: 100 varians 48: 116 Petasina 40: 107 petasus, Armsia 45: 125 petasus, Pterodiscus 45: 125 petholatus, Chiton 43: 137; 44: 25 petholatus. Turbo 55: 2; 60: 55 petiti, Neritina 50: 45 Peteniella 55: 52 Pethopecten 50: 27 Petitia 48: 14 petitiana, Zachrysia 52: 38 petitianus. Ancylus 37: 7-9 petitii. Cerithium 56: 21 Petraeus -- subgenus of Ena Petrarca 41: 108 Petrasma -- subgenus of Solemya Petricola 48: 4; 51: 47 -- also as sub- genus of Psephis caritoides 43: 50; 55: 110; 56: 42 dactylus 36: 60; 39: 72; 51: 93; 57: 31-2 denticulata 59: 103 lapicida 49: 119; 54: 40 lata, see pholadiformis 1. pholadiformis 36: 60; 38: 50; 39: 29; 41: 15; 42: 35; 45: 138; 51: 93; 54: 21, 127; 56: 61, 142; 57: 67; 58: 58. 137, 140 pholadiformis lata 58: 58 tellimyalis 56: 142 (Rupellaria) typica 39: 84 petricola, Acrorbis 51: 107 petricola, Helminthoglypta 54: 125 petricola orotes, Helminthoglypta 54: 125 petricola sangabrielis, Helminthoglypta 50: 69 Petricolaria 39: 72 pholadiformis lata 39: 72 petrolia, Scalez 38: 66; 37: 109-10; 40: 12-6, 69 Petrophysa 40: 34; 43: 54 -- also as subgenus of Physa zionis 43: 59 petrosum, Astraea 60: 55 pexata, Area 41: 15; 60: 71 -- see also A. campechiensis p. pfeifferi, Ancylus 37: 7 pfeifferi, Biomphalaria 58: 146 pfeifferi, Planorbis 47: 77; 52: 142 pfeifferi, Succinea 43; 62; 50: 10, 134; 53: 133 pfeifferianum, Chondropoma 40: 89 pfeigerianum, Chondropoma 38: 61 pfisteri, Ptychobranchus 36: 43 Phacoides adansoni 49: 117 (Callucina) californica 37: 41; 51: 100 crenella 49: 118 fenestratus 37: 128 floridana 37: 54 jamaicensis 38: 61 mazatlanica 55: 121 (Lucinisca) nassula 39: 83: 49: 119 nuttallii 44: 92 pectinatus 39: 83 pennsylvanica 38: 61; 49: 117 radiata 49: 117 (Parvilucina) tenuisculpta 37: 41 Phaenochiton 39: 48, 76 Phaenomya 36: 141 vaderensis 36: 141 Phalium 41: 72; 58: 107 erinaceum vibex 51: 112 phanella, Odostomia (Evalea) 37: 42 phanium, Epitonium 45: 113 Pharaonella venusta 55: 2 phaseolus, Unio 51: 49 256 THE NAUTILUS Physa Phasianella 42: 69 compta 36: 34 compta pulloides 36: 18 pulloidea 37: 43 pulloides, see compta p. tomlini 35: 98 (Eulithidium) typicum 37: 43 phasma, Crassispira 54: 49 Phenacolepas hamillei 57: 32-3 Phenacolimax 42: 138-9 angelica 39: 32 Phenacotaxus -- subgenus of Bostryx Phidiana 35: 75 Philbertia laysanensis 36: 122 luteola 36: 122 mighelsi 36: 122 Philine californica 59: 104 cingulata 40: 22 lima 40: 22 sinuata 40: 22 philippiana, Fadyenia 48: 14 philippiana. Varicella 49: 22, 26 philippiana elegans. Varicella 49: 26 philippii, Corbula 55: 142 philippinarum, Paphia 52: 140 philippinarum. Tapes 37: 4; 40: 80 phillipsii. Varicella 49: 23, 26 Phillocaulis 39: 15 Philobrya setosa 36: 18; 37: 41 Philomycus 35: 80; 38: 80; 40: 64; 54: 20 australis 38: 80 bilineatus 38: 80 carolinianus 35: 44; 44: 129; 47: 140; 48: 58; 54: 19, 88-90; 55: 7, 96-7; 59: 27-8, 92 carolinianus flexuolaris 58: i25 caroliniensis 43: 44, 68; 48: 81 chinensis 38: 80 confusus 38: 80 dorsalis 50: 131 flexuolaris, see carolinianus f. formosensis 38: 80 Philonesia 38: 79 baldwini 37: 3 phlyctaena, Helminthoglypta, see H. traski p. Phlycticoncha 53: 137 Phlyctiderma 53: 137 phoenicea, Cerion 38: 60 phoeniciensis, Pecten 50: 58 Pholadidea californica 44: 91; 60: 89 concamerata. see penita c. ovoidea 43: 51; 56; 42 penita 43: 51; 56: 42 penita concamerata 45: 52-3 rostrata 43: 51, 56: 42 pholadiformis, Petricola 36: 60; 38: 50; 39: 29; 41: 15; 42: 35; 45: 138; 51: 93; 54: 21, 127; 56: 61, 142; 57: 67; 58: 58, 137. 140 pholadiformis lata, Petricola 58: 58 pholadiformis lata. Petricolaria 39: 72 pholadis, Saxicava 38: 25: 43: 50; 56: 42 Pholadomya harrigani 43: 23, pi. 1 Pholas 36: 110 californica 40: 81 campechiensis 49: 133; 58: 60 chiloensis 37: 130 costata 41: 14; 42: 83; 43: 64 penita 40: 81 truncata 42: 83 Phos 50: 21; 51: 90 adelus 56: 66, pi. 3 clarki 58: 27 cocosensis 58: 27 crassus 58: 27-8 intricatus 58: 36 -- see also parvus i. parvus 50: 20; 51: 90 parvus intricatus 51: 90 roycei 51: 90; 58: 36 thayerae 49: 139; 50: 20 phrixodes, Emarginula 40; i40 Phrontis -- subgenus of Nassa phrygium, Pecten 38: 120 Phyllirhoe 36: 91 Phyllocaulis 39: 15. 18; 42:46-- subgenus of Vaginulus Phyllocaulus 39: 16, 18 Phyllodina -- subgenus of Tellina Phyllonotus bicolor 57: 4 Phymeroda equalis 59: 86 phymotis, Stomatia60: 55 phymotis obscura, Stomatia 60: 55 Physa 37: 80-1; 38: 13, 43, 127, 129-30, 132, 138-9; 39: 72; 40: 35, 55, 64, 76, 141; 41: 75; 42: 94. 120-1, 130; 43: 77- 8, 87-8, 92; 44: 39; 45: pi. 11; 46: 36; 47: 1, 3, 26, 35; 48: 110, 113, 142; 49: 86; 50: 128, 140; 51: 15, 61, 130; 52: 138; 54: 7, 84-6, 107, 112; 55: 18.68-9; 56: 131, 143; 57: 132; 58: 13. 69 -- also as subgenus of Lymnaea acuta 38: 61; 48: 33 anipla. see canadensis a. ampullacea 44: 109-10; 48: 140-1; 49: 30-2. 85-6; 54: 29; 56: 55 ampullacea columbiana 49: 32.86 ampullacea propinqua 49: 85 anatina 39: 12; 48: 110. 114 ancillaria 37: 30; 42: 59; 43: 84; 47: 9; 57: 9 ancillaria parkeri 57: 9 aurea 47: 1 barberi 39: 108 blandi 47: 2 borbonica 43: 92 bottimeri 38: 12 bridgerensis 50: 128 bullata 49: 30. 85 byersi, see gyrina b. canadensis 50: 143-4 -- see also copei c. canadensis ampla 50: 144 canadensis media 50: 144 257 Physa INDEX TO canadensis parvaturris 50: 144 canadensis tenuis 50: 144 Columbiana 49: 85-6, pi. 7 -- see also ampullacea c. copei canadensis 50: 143-4 costata 42: 81 crassa, see sayi c. crocata 58: 1? cubensis 39: 43: 4i: 54; 52: 130 cupraeonitens 38: 105 distorta 54: 65 d'orbignyana 52: 138 -- see also orbignyana elliptica, see gyrina e. fontinalis 41: 41; 50: 134 gabbii, see virginea g. gouldi 48: pi. 7; 49: 30, 32; 50: 116 gyrina 37: 25; 38: 15; 39: 126; 40: 51, 55, 61, 114: 42: 134, 140; 43: 84, 88; 44: 89, 130; 45: 118, 121, 123; 48: 59, 110; 52: 15; 54: 7, 84; 55: 32: 56: 132; 58: 13, 78; 59: 110 gyrina byersi 40: 141 gyrina elliptica 53: 135 gyrina hildrethiana 40: 61 halei 39: 12; 47: 35; 48: 110-1: 54: 107, 112; 58. 13 heterostropha 37: 30; 40: 55, 61; 41: 85; 42: 59, 129; 43: 34, 70, 88; 44: 69; 46: 101; 47: 1, 9; 48: 59; 52: 130: 54: 53; 57: 46; 58: 13 heterostropha osculans 48: 33 hildrethiana 40: 51 -- see alsogyrinah. humerosa 42: 120; 50: 42 huniersoa interioris 45: 139, pi. 11 hypnorum 52: 59 Integra 39: 126: 40: 17, 62; 41: 20; 44: 89, 130; 48: 59; 54: 7-8; 56: 133 interioris, see humerosa i. lordi 38: 13 malleata 47: 123-4 marci 38: 15 media, see canadensis m. michiganensis 40: 51-2; 44: 89 microstoma 38: 133; 40: 8, 66; 54: 65; 56: 132 nana 43: 92 niagarensis 36: 25 nuttallii 39: 71; 48: 47; 49: 32. 85-7 oneida, see sayii o. orbignyana 45: 139 osculans, see heterostropha o. parkeri, see ancillaria p. parvaturris, see canadensis p. peruviana 44: 106 plena 44: 106 pleromatis 50: 128 pomilia 56: 132; 58: 13 propinqua 48: 47 -- see also ampullacea p. remingtoni 44: 106 rivalis 39: 4 salina 44: 106 sayii 36: 25; 40: 50-1; 48: 59; 49: 31; 55: 66 sayi crassa 57: 8 sayii oneida 48: 59 sayi warreniana 38: 105-6; 41: 20 scalaris 41: 52 seychellana 43: 92 smithiana 37: 79 sowerbyana 44: 106 sparsestriata 48: 48 tenuis, see canadensis t. traskii 37: 79; 45: 139; 47: 3 virgata 37: 79; 45: 139; 52: 138; 56: 55 virginea gabbii 55: 18 walkeri 36: 25 warreniana 49: 32 -- see also sayiw. (Petrophysa) zionis 40: 34; 43: 54, 61; 54: 32 physalis, Cochlostyla (Corasia) 57: 18 physalis, Helicostyla (Corasia) 57: 18 physalis. Helix 57: 18 physcus, Hydrobioides 41: 108 Physella ampullacea 42: 125 ancillaria 42: 59 elliptica, see gyrina e. gyrina 43: 119 gyrina elliptica 43: 42 gyrina hildrethiana 44: 46 heterostropha 54: 144 hildrethiana, see gyrina h. integra 43: 119 magnalacustris 44: 46 osculans 59: 21 sayii 42: 134; 44: 46; 59: 29 virgata 42; 125; 43: 60 physis. Bulla 37: 50 physis, Hydatina 50: 29: 52: 33, 72 physodes, Streptostyla (Rectoleacina) 55: 56, 59 Physopsis 40: 106; 58: 146; 60: 35 africana 52: 142; 60: 35 globosa 58: 146 Physunio 39: 116 Phytia setifer 51: 124 pica. Livona 35: 119, 121; 38: 61 pica, Oliva 42: 9 -- see also O. ery- throstoma p. pica, Siphonaria 52: 46 picea, Nerita 35: 83-4; 37: 3; 55: 2; 58: 122-3 picea, Ornithochiton 58: 102 Pickworthia andrewsi 49: 93 kirkpatricki 49: 93 picta, Achatina 60: 43 picta, Anculosa 35: 11; 58: 41 picta, Chione 59: 104 picta, Littorina 35: 83-4 picta sagittata, Modiola 48: 127 picta. Polymita 46: 22, 24; 48: 37. 39, 42: 50: 141: 56: 82 picta venusta, Polymita 48: 39 picta, Synaptocochlea 53: 20 258 THE NAUTILUS Pisana pictor, Helicostyla 45: 103 pictoruni, Spondylus 46: 110 pictuni, Calliostoma, see C. costatum p. pictuni. Chondropoma 38: 61; 40: 89 pictuni minor, Chondropoma 40: 89 pictus, Liguus 52: 47; 60: 43-5 -- see also L fasciatus p. pictus. Pecten 41: 93; 50: 56-7 Pierosoma 54: 17 -- subgenus of Helisoma Pila 39: 33 orbata 41: 64 scutala 49: 79 pileare. Murex 37: 50 pilearis. Cyniatium 36: 121 pileus. Helix 49: 67 pillsburyi. Cerion 56: 36 pilosa. Acanthodoris 39: 49, 61 pilosa albescens, Acanthodoris 39: 49 pilosa novae zealandiae, Acanthodoris 39: 60 pilosa pallida, Acanthodoris 39: 60 pilosa purpurea, Acanthodoris 39: 50 pilosa, Doris 39: 49 pilosus, Hipponyx 52: 45 pilosus, Lagochilus 55: 43 pilsbry, Epitonium (Cirsotrema) 54: 62 pilsbryana, Paravitrea 42: 90 pilsbryana, Urocoptis (Idiostemma) 55: 104 pilsbryanum, Sphaerium 44: 110-1, 113; 47: 26; 57: 95 pilsbryi, Amnicola 42: 55 pilsbryi, Aplexa, see A. hypnorum p. pilsbryi, Bulimulus 39: 25 pilsbryi, Bulimus 39: 25 pilsbryi. Carelia 46: 138 pilsbryi, Chanomphalus 41; 123, 128 pilsbryi, Choanopoma 42: pi. 5 pilsbryi. Choanopoma (Annularodes) 42: 98; 47: 135; 52: 139 pilsbryi. Cypraea 52: 120, pi. 9 pilsbryi. Dentalium (Antalis) 56: 69 pilsbryi. Drymaeus 47: 93. pi. 13 pilsbryi. Durangonella 59: 20, 22. pi. 3 pilsbryi. Glyphostoma 54: 51 pilsbryi. Goniobasis 41: 58; 58: 46 pilsbryi. Goodrichia 45: 71 pilsbryi. Gulella 49: 95, pi. 6 pilsbryi. Helisoma 46; 8-9 pilsbryi. Lanistes 39: 5 pilsbryi. Liguus. see L. blainianus p. pilsbryi. Lioplax 49: 66 pilsbryi choctawhatchensis. Lioplax 49: 66 pilsbryi. Lobiger 55: 40. pi, 3 pilsbryi. Megaspira 59: 67 pilsbryi. Mesomphix 54: 19-20; 55: 8 pilsbryi. Neritina 46: 45 pilsbryi. Oreohelix 40: 5 pilsbryi. Planorbis, see P. trivolvis p. pilsbryi. Polygyra 40: 3 pilsbryi, Ranellina 40: 144 pilsbryi. Teinostoma 58: 142; b9: 2-3, 77, 80, pi. 1 pilsbryi, Thysanophora 36: 36 pilsbryi, Tudora 37: 94; 39: 41, 43 pilsbryi, Zirfaea 45: 53, pi. 3 Pilsbryna 43: 144; 45: 36 aurea 42: 91-3 castanea 45: 36 Pilsbryoconcha 53: 56 Pilsbryus 58: 35 pilula. Bulimus 50: 135 pilula. Fluminicola 48: 15 pilula, Melania 35: 11 pilula, Polygyra 40: 115; 46; 58, 91 pilula, Trivia 60' 51 pinchoti, Giffordius 43: 142 pinchoti. Varicella 56: 7-8 Pinctada nebulosa 52: 118 pinctada, Littorina 55: 2 pindarina, Oliva, see O. spicata p. pineatus, Melampus 52: 142 pinei, Pomacea 50: 38 pinei, Unio 47: 18 pinella, Placunanomia 59: 39, 41 Pineria 50: 139 ciequensis 50: 139 pingelii, I ora 40: 21 pingelii, Lymnaea, see L. vahlii p. pingi, Viviparus 59: 64, pi. 7 pinguis, Anculosa 35: 11-2 pinguis, Lithasia, see L. genitulata p. Pinguitellina 41: 102 pinicola, Polygyra 41: 143 Pinna 37: 127; 43: 136; 45: 80; 46: 111: 51: 73 carnea 49: 119 muricata 37: 55; 38: 93-4 rugosa 46: 75; 52: 45 seminuda 37: 55; 43: 35 tuberculosa 46: 75 pinnatus. Typhis 57: 40 pinnulatum, Cardium 35: 32; 40: 25; 56: 60, 143 pinosensis, Borsonella 58: 108 pintado, Littorina 35: 83-4; 58: 122 piperitum, Cerithium 60: 55 pirayni, Cerithium 56: 23 Pirena californica 56: 27 scalariformis 56; 22 Pirenella conica 56: 28-9 Pirostoma rugosa 44: 71 pisana taylori, Euparypha 36: 45 pisana rosea, Euparypha 36: 45 pisana coalita, Euparypha 36: 45 pisana, Helicella 59: 119 pisana. Helix 35: 39, 98, 100; 41: 32; 46: 139-40 pisana carpiensis. Helix 36: 45 pisana donatii. Helix 36: 45 259 Pisania INDEX TO Pisania (Tritonidea)auritula 49: 139; 50: 20 (Tritonidea) lymani 49: 138-9; 50: 20 pusio 53: 38 tritonoides 58: 122 piscinalis, Valvata 40: 69; 43: 144; 52: 30-1, 60-2; 53: 102, 140; 59: 36 Pisidium 35: 98, 104-5, 107-11; 36; 35, 39, 41, 108, 140; 37: 16, 71, 78, 80; 38: 10; 40: 26, 76, 107, 144; 41: 75; 42: 23, 120; 46: 137; 48: 33, 47, 110; 50: 114; 51: 131; 52: 35, 79-80, 83-4, 125; 54: 9, 87, 117, 144; 55: 139: 57: 45. 48, 93, 117; 58: 35, 50; 59: 21, 24-5, 34, 87 abditum 35: 113; 37: 22, 30; 40: 28; 41: 34, 120; 42: 123, 43: 119; 44: 91; 53: 78; 54: 30, 84, 86; 56: 53; 58: 51; 59: 25, 29 abortivum 37: 22; 59: 34 abruptum 59: 86 adamsi 40: 50; 42: 97 aequilaterale 35: 112, 115; 37: 30 alpicola 42: 26-7 amnicum 35: 105-7, 113, 115; 40: 26; 52: 59 amoenum 48: 48 arcticum 52: 82 astartoides 40: 26 atlanticum 58: 51 brevis, see variabile b. casertanum 35: 107; 40: 27; 42: 24; 50: 10; 52: 80 cinerium 50: 10; 52: 80-3, pi. 6 coloradense 37: 17, 19 columbianum 48: 48 compressum 35: 112, 115-6; 36: 40; 37: 18, 21; 38: 10; 40: 26, 50, 56, 62; 41: 119; 42: 24-5, 120-1; 44: 110; 47: 26; 48: 48; 52: 15, 131; 56: 53; 58: 51 compressum contrarium 58: 51 compressum coosaense 58: 51 concinnulum 43: 60; 47: 2; 48: 48; 55: 143 concinnulum, see also subrotundum c. conicum 40: 26 contortum 54: 144; 57: 46 contrarium, see compressum c. conventus 52: 83 coosaense, see compressum c. costatum 37: 22; 59: 25 cristatum, see lilljeborgii c. cruciatum 35: 112: 36: 40-1 dilatatum 52: 57 dubium 35: 105-6, 113, 115, 117; 58:52: 59: 85-7 exiguum 59: 34 eyerdami 52: 81 fabale 35: 116 fallax 35: 112; 36: 40; 37: 30; 40: 62; 42: 25 ferrugineum 36: 40: 59: 25 fontinale 40: 27 fossarinum 40: 27-8 fraudulentum 35: 115 gassiesianum 36: 35 griseolum 37: 30 hannai 42: 26-7 hendersoni 37: 20 henslowanum 36: 40; 40: 26; 42: 23, 26 huachucanum 37: 22; 42: 94 imbecille 37: 22 indianense 38: 10; 42: 54 kirklandi 35: 112; 42: 25 lermondi 37: 22 lilljeborgii 42: 23, 25-7; 52: 82-3, pi. 6; 59: 26 lilljeborgii cristatum 42: 25 limatulum 58: 51 loveni 42: 26-7 lucidum 37: 19 marci 37: 22; 42: 26-7 medianum 40: 50; 59: 25 milium 37: 22; 40: 26, 29; 52: 82-3, pi. 6 mirabile 35: 113 mirum 37: 20 monas 37: 30 neglectum 40: 52 nordenskioldi 52: 59, 81 noveboracense 35: 113; 53: 78; 58: 51; 59: 25, 28-9 obtusalastrum 52: 82 obtusale 52: 82, pi. 6 occidentale 37: 21-2, 30 ovum 35: 117; 37: 20, 22 parvulum 36: 39-40; 37: 22 pauperculum 35: 111-2 politum 35: 113; 48: 48; 59: 29 probum 37: 18 pulchellum 40: 27; 41: 120 punctatum 36: 40-1; 37: 30; 42: 24-5; 48: 48 punctatum simplex 37: 30; 42: 24 pusillum 37: 22; 40: 27; 59: 25 randolphi 39: 71; 48: 48 roperi 37: 20, 22; 40: 56, 62 roseum 40: 27: 42: 23-4; 52: 81 rotundatum 37: 22: 40: 50, 56; 59: 25 scutellatum 38: 10; 40: 50, 56; 42: 25, 27, 54; 52: 82; 59: 26 sibircum 52: 57, 81 simplex, see punctatum s. singleyi 58: 52 sordellianum 40: 27 splendidulum 35: 112 steenbuchi 40: 26 streatori 37: 30; 40: 51 subrotundum 37: 30; 40: 27-8, 62; 42: 96; 48: 48 subrotundum concinnulum 40: 51-2 subtruncatum40:27; 42: 23; 52: 81 supinum 35: 107, 112, 115; 36: 40; 40: 26: 42: 23. 25 tenuissimum 35: 112; 39: 124; 40: 50, 56: 59: 26 titicacense 38: 103 260 THE NAUTILUS Planatum torquatum 36: 39 ultramontanum 41: 119 variabile 35: 112-3, 115; 37: 20, 31; 40: 50: 41: 84; 42: 123; 44: 69, 91, 114; 48: 48; 54: 28, 144; 56: 53; 57: 46; 59: 24 variabile brevis 40: 56 ventricosum 37: 22; 38: 10; 54: 144; 57: 46; 59: 25 virginicum 35: 105; 40: 26; 52: 131; 58: 52; 59: 86-7 woodringi 59: 34 pisum, Choanopoma 48: 64-5 pisum, Cypraea 37: 50 pisum, Proserpina 47: 151; 48: 63 pisum, Stoastoma 48: 62-3 Pitar affinis 52: 46 alternata 52: 46 circinata 60: 19 concinna 47: 47 felipponei 56: 33 fulminata 49: 118 lupanaria 52: 46 morrhuana 58: 58 pollicaris 46: 76, 109 texasiana 54: 21 unicolor 52: 46 Pitaria 42: 5 circinata 37: 129 concinna 37: 129 ida 42: 4, pi. 1 lupanaria 37: 129 newcombiana 37: 41 pithogaster batoana, Helicostyla 46: 64 Pithohelix 59: 120 pittensis. Goniobasis, see G. acutifilosa p. pittieri. Ochrodermella 58: 87 Pittieria 55: 52, 55 ambigua 55: 59 (Shuttleworthia) arborea 55: 55-6, 59, pi. 5 bicolor 55: 55 difficilis 55: 59 underwoodi 55: 55 pittsburgensis, Littorina 36: 140 Pitys 47: 61 oparana 47: 61 pagodiformis 47: 61 piutensis, Helminthoglypta, see H. cuyamacensis p. pizarro, Psadara 57: 119 Placentula 35: 12 placentula, Paravitrea 46: 58 placentula lacteodens, Paravitrea 46: 58; 53: 85 Placiphora cuprea 58: 102 superba 58: 102 Placiphorella 38: 95-6 blainvillei 46: 44 imporcata 58: 102 sinuata 58: 102 velata 46: 124 Placopecten -- subgenus of Pecten Placostylus 38: 36; 42: 73-7, pi. 2; 46: 68; 48: 126; 57: 42 (Acrostylus) acutus 48: 126, pi. 7 bavayi 42: 73, 75 bivaricosus 42: 77 bourailensis, see fibratus b. (Acrostylus) calus 48: 126 corpulentus 42: 74 (Diplomorpha) coxiana 46: 68-9 duplex 42: 75 -- see also porphy- rostoma d. fibratus 42: 74-6 fibratus bourailensis 42: 74, 78 fibratus souvillei 42: 76 gatopensis, see guestieri g. goyettensis, see poyensis g. guestieri 42: 75-7 guestieri gatopensis 42: 77 hargravesi 39: 69 kanalensis 42: 74 neckliaensis 42: 74 porphyrostomus 42: 76-8 porphyrostomus duplex 42: 75 poyensis 42: 73-4, 78 poyensis goyettensis 42: 73 savesi 42: 74 souvillei 42: 74 -- see also fibratus s. Placuna 60: 27 Placunanomia 59: 38 cumingii 37: 128 pinella 59: 39, 41 plicata 59: 39 plaearius, Ancylus 37: 10, 16 Plagioctenium -- subgenus of Pecten Plagiodontes 54: 92 Plagiola 54: 9 donaciforniis 36: 99 elegans 36: 99 lineolata 36: 99 securis 36: 99 Plagioptycha 49: 106; 56: 82, 86. 88 -- also as subgenus of Cepolis duclosiana 56: 36 macrodon 56: 36 plagioptycha, Thysanophora (Lyroconus) 37: 67-9; 40: 65; 41: 144; 49: 54 plagioxus, Ancylus 37: 11, 16 plana, Anodonta, see A. grandis p. plana, Crepidula 35: 32; 37: 56; 38: 50, 61; 39; 29, 39, 86; 41: 15; 51: 92: 54: 127; 56: 58, 143; 58: 60; 60: 75 plana, Mya 37: 50 plana, Polygyra 37: 33 plana, Thyasira 40: 24 Planamastra 45: 125-6 peaseana 36: 17 planata. Acteocina 35; 45-6, 123 Planatella 59: 119 planatum, Sphaerium, see S. sulcatum p. 261 Planaxis INDEX TO Planaxis 35: 119; 38: 56, 111; 40: 104; 53: 38 labiosus 36: 122 lineatus 38: 61 nigritellus 52: 46 nucleus 35: 121; 38: 61 planicostata 36: 51: 46: 45 planaxis, Littorina 36: 18; 37: 42; 50: 48 plancus, Unio 37: 102 planetica, Cuspidaria 38: 24 planicostata, Planaxis 36: 51; 46: 45 planicostata, Pleurocera 38: 136 planidens, Strophocheilus 43: 76 planispira, Anculosa 35: 11 planispira, Thais 46: 115 planiuscula, Periploma 37: 122, 128; 47: 85 Planogyra 41: 123 asteriscus 41: 122-3; 59: 124 planogyrum, PleuroL jra 42: 116 Planorbarius 59: 71 corneus 59: 71 Planorbella campanulata 42: 133 Planorbina -- subgenus of Planorbis Planorbis 36: 140; 37: 80; 38: 91, 111, 130; 39: 4, 116; 40: 76; 41: 75; 42: 106; 43: 78, 84; 44: 77, 111; 47: 65, 67, 88; 55: 69; 57: 9; 58: 146; 59: 127 alexandrinus 54: 33 ammon 39: 119; 47: 87-91; 50: 41 amosbrowni 43: 138 anatinus 39: 4; 47: 64-7 anceps 58: 12 antrosus 36: 25, 144; 37: 30, 97; 38: 43; 40: 17, 60, 79; 42: 115, 120, 141; 43: 34, 83, 88; 44: 69 antrosus latchfordi 40: 79 antrosus percarinatus 40: 79 antrosus portagensis 40: 60 antrosus striatus 40: 60; 42: 17; 43: 83 antrosus unicarinatus 36: 25; 42: 115 applanatus 54: 97 -- see also tenuis a. aracacensis 47: 66-7 aracasensis 47: 66-7 arakanensis 47: 67 arcticus 38: 11 armigerus 54: 33-4 bicarinatus 36: 143-4; 40: 79; 42: 56-7; 44: 128; 51: 93 bicarinatus percarinatus 57: 9 bicarinatus portagensis 57: 9 binneyi 39: 117-9; 41: 76; 43: 83; 44: 110 -- see also trivolvis b. borealis 52: 59 borealis dershavini 52; 59 callioglyptus 39: 71; 48: 48 campanulatus 36: 25; 39: 126; 40: 61. 139; 41: 85; 42: 17; 44: 69 campanulatus davisi 42: 17 campanulatus rudentis 41: 49-50 campanulatus smithii 57: 9 campanulatus wisconsinensis 42: 115; 43: 83; 46: 59-61 caloderma 36: 143 caribaeus 41: 54 carus 38: 43 confusus 37: 36 contortus 40: 69; 41: 41; 52: 58 corneus 50: 134; 57: 8 corpulentus 39: 125; 42: 17; 46: 6; 47: 87-8; 49: 85-6 costatus 60: 70 (Armiger) crista 38: 2; 40: 55; 41: 85 cristatus 57: 8 cultratus 40: 16-7 davisi, see campanulatus d. declivis 54: 97 deflectus 36: 24; 37: 30; 40: 61; 42: 17, 58 dershavini, see borealis d. dilatatus 38: 43; 40: 17; 41: 120; 58: 12 duryi 41: 53 edentulus 54: 33 esperanzensis 47: 65-7 exacuous 36: 24; 37: 39; 38: 11; 39: 126; 40: 55, 61; 41: 85; 42: 17, 19; 43: 83; 44: 110; 49: 47-8 exacuous lenticularis 37: 78 exacuous megas 49: 48 (Gyraulus) exilis 52: 58 glabratus 41: 54 haldemani 47: 65-6 hirsutus 38: 11; 40: 55, 61; 41: 85, 92; 42: 17, 58 hornii, see trivolvis h. immunis 37: 36 intercalaris 45: 15 involutus 47: 66 Isabel 47: 65, 67-8 kamtschaticus 52: 59 latchfordi, see antrosus 1. lanierianus 56: 8 lenticularis, see exacuous 1. lentus 39: 12; 47: 79; 51: 93 leibmanni 38: 43; 40: 17; 47: 79 magnificus 42: 116 megas, see exacuous m. nioellendorfi 52: 59 multivolvis 50: 63 (Armiger) nautileus 38: 2 nitidus 41: 41 obstructus 49: 104 opercularis 36: 17 (Menetus) opercularis planulatus 48: 33, 48 pallidus 39: 43 parvus 36: 24; 38: 11; 39: 126; 40: 17. 55, 61, 114; 41: 20, 85; 42: 94; 44: 110; 48: 48 paysanduensis 44: 33 percarinatus, see antrosus p. and bicarinatus p. 262 THE NAUTILUS Pleurobema pertenuis. see tenuis p. pfeifferi 47: 77; 52: 142 pilsbryi, see trivolvis p. planulatus 49: 47; 54: 97 -- see also opercularis p. plexata 37: 79 portagensis, see antrosus p. and bicarinatus p. (Planorbina) preglabratus 40: 35 rudentis, see campanulatus r. siliceus 43: 138 (Gyraulus) siniilaris 37: 79; 40: 76, 122; 41: 53; 48: 48 sniithit, see campanulatus s. storchi 50: 128 striatus, see antrosus s. subcrenatus 38: 11 tenuis applanatus 54: 97 tenuis pertenuis 54: 97 titicacensis 38: 103 trivolvis 36: 25; 37: 25, 79; 38: 11, 43; 39: 117-9, 126; 40: 17; 41: 20, 85, 120; 42: 115, 120-1; 43: 83; 44: 110; 46: 101: 48: 48; 50: 41; 51: 93 trivolvis binneyi 44: 110 trivolvis hornii 55: 18 trivolvis pilsbryi 39: 117-9 trivolvis winslowi 39: 116-7 truncatus 42: 104 tuniens 47: 86 umbilicatellus 36: 21; 37: 79; 40: 61; 42: 19; 43: 84; 49: 46, 48 unicarinata. see antrosus u. vermicularis 37: 79; 41: 93, 119-20; 42: 120-1; 44: 110 (Gyraulus) vermicularis 48: 48 winslowi, see trivolvis w. wisconsinensis, see campanulatus w. yzabalensis 47: 65, 67 planorbis, Skenea 56: 59; 58: 61 Planorbula 47: 67; 49: 48, 104; 53: 106; 54: 33, 65; 55: 31; 58: 12; 59: 71 armigera 40: 51; 41: 20; 42: 136; 43: 42; 45: 118; 48: 59; 58: 13, 78 campestris 58: 32 christyi 42: 17, 19-20; 58: 78 crassilabris 42: 133-4; 43: 119; 44: 46, 88 jenksii 58: 32, 125 obstructa 38: 43; 40: 17; 42: 66; 47: 16-7 wheatleyi 58: 12-3, 32 planorbula. Polygyra 52: 23 Planorbulina 54: 33-4 planospira. Anculosa 41: 58 planospira, Cingulilera 50: 134 planospira, Helicigona (Chilostoma) 50: 134 planospira, Melania 41: 58; 43: 7 planulata, Mactra 38: 98, 101 planulata. Proserpina, see P. nitida p. planulata, Rochefortia 56: 142 planulata, Spisula (Symmorphomactra) 38: 102; 53: 22 planulata, Standella 38: 102 planulata, Tivela 37: 121-2, 129; 52: 46 planulatum, Sinum 37: 108 planulatus, Menetus 44: 78-9; 49: 47 planulatus multilineatus, Menetus 49: 48 planulatus, Planorbis 49: 47; 54: 97 -- see also P. opercularis p. planus, Mesomphix, see M subplanus p. platensis, Macoma (Psammacoma) 36: 59 plateolus, Medionidus 37: 58 Platevindex 51: 88 coriaceus 51: 88 Platybostryx 57: 88 -- subgenus of Bostryx platyceps, Valvata, see V. virens p. platychilos. Alcadia 54: 71 Platyodon cancellatus 44: 92; 51: 101 platyomphala, Eulota 38: 65 platysayoides, Polygyra 46: 54-5, 103 Platystoma 36: 15; 56: 135; 57: 62-3 jamaicensis 56: 136; 57: 63 platystoma, Limnaea 54: 65 platystyla, Cepolis 56: 89 -- see also C. conspersula p. Platysuccinea 54: 62 portoricensis 54: 61-2, pi. 5 playa, Laevaricella (Boriquena) 55: 29, pi. 2 playa, Varicella (Laevaricella) 53: 107; 55: 29 playasensis. Modiolus (Brachydontes) 49: 17, pi. 1 Plebecula punctulata avellana 35: 14 vulgata saxipotens 35: 14 plebeius, Goniobasis 38: 45-6; 41: 61 plebeius, Vaginulus (Sarasinula) 39: 15; 44: 131, 134-6 plebeja, Sarasinula 39: 15; 44: 134 Plecorema inaequalis 37: 3 Plectocion 40: 144 Plectocyclotus 36: 14, 16 Plectomerus dombeyana 49: 81 trapezoides 39: 88 Plectostylus 51: 33 pleistocenica, Polygyra, see P. profunda p. pleistocenica, Succinea, see S. ovalis p. Plejona 40: 144 Plekocheilus 51: 33; 58: 30 mcgintyi 57: pi. 9 plena, Physa 44: 106 pleniuscula, Periploma 47: 47 pleromatis, Physa 50: 128 Plethobasus cyphyus 36: 49 Pleurobema 36: 80, 82-3 aesopus 36: 49 aldrichi 41: 139, pi. 3 amabile 36: 82-3 argenteum, see oviforme a. catillus 36: 49 -- see also cordatum c. clava 36: 80-1, 96: 57: 16 263 Pleurobema INDEX TO coccineum 36: 49; 44: 130 -- see also cordatum c. coccineum pauperculum 44: 47 cordatum 36: 49; 40: 66 cordatum catillus 40: 66 cordatum coccinea 40: 66 favosum 36: 78-9 fictum 41: 139, pi. 3 georgianum 36: 78, 80 hagleri 36: 81 lesleyi 57: 16 marshalli 41: 139, pi. 3 modicum 36: 82-3 oviforme argenteum 36: 80 patsaligense 36: 81 patula 57: 16 pauperculum, see coccineum p. pyramidatum 36: 96 simpsoni 36: 83 striatum 36: 82 Pleurobranchus digneti 37: 41 Pleurocera 38: 90, 131, 135-9, 140-1; 41: 86; 42: 144; 43: 1 7; 44: 39, 115; 46: 29, 30, 32, 34; 47: 35, 48-9; 48: 101; 49: 77; 55: 69; 58: 43, 47 acuta 38: 44-5; 41: 61-2; 44: 46, 89; 45: 62-3; 46: 30-1, 33-4; 47: 48-9; 48: 27; 53: 106; 54: 9; 56: 131 alveare 52: 127; 53: 74-6; 56: 132 brumbyi 40: 9, 11 canaliculatum 38: 45; 43: 7-8; 45: 62-3 canaliculatum filum 53: 74; 56: 132 canaliculatum undatum 48: 101-2 canaliculatum undulatum 48: 26; 52: 140; 53: 74-5; 56: 132 curtum 42: 144 ; 43: 141; 53: 74; 56: 132 curtum roanense 42: 144 elevatum 38: 45, 47; 40: 11; 43: 8-10 excuratum 43: 8 filum, see canaliculatum f. foremanii 58: 43 lewisii 46: 30-1, 34, pi. 1 lyonii 41: 58 modestum 56: 132 moniliferum 43: 8 nobile 56: 132 opaca 41: 59 parvum 56: 132 planicostata 38: 136 planogyrum 42: 116 prasinatum 58: 43 roanense 42: 144 -- see also curtum r. showalterii 58: 43 striatum 56: 132 subulare 38: 44 torta 41: 58 unciale 35: 3; 56: 132 undatum, see canaliculatum u. undulatum 38: 45; 40: 9, 66; 43: 8-10 -- see also canaliculatum u. vestitum 58: 43 alkeri 42: 144; 53: 74; 56: 132 pleurocostata, Scalaria 51: 6 Pleurodonte 40: 38: 44: 138-40; 40: 2-3, 26; 51: 24; 52: 38 acuta, see fuscolabris a. and lucerna a. acuta semperfluens 49: 4 anomala 49: 55 anomala convexa 49: 55 arangiana 40: 90 atavus 49: 56 auricoma 38: 61; 40: 90 auricoma major 40: 90 auricoma minor 40: 90 bainbridgei 49: 55 browneana, see tridentata b. cara 49: 55 (Dentellaria) cara catadupae 49: 24, 55, pi. 2 (Caracolus) caracolla 59: 117 catadupae, see cara c. chemnitziana 49: 55 chittyana, see tridentata c. consanguinea, see invalida c. convexa, see anomala c. dominicana, see guadeloupensis d. fortis, see okeniana f. fuscolabris 49: 54 fuscolabris acuta 49: 55 fuscolabris goniasmos 49: 54-5 fuscolabris patina 49: 54 fuscolabris sublucerna 49: 55 goniasmos, see fuscolabris g. guadeloupensis 51: 26-7, 34, pi. 2 guadeloupensis dominicana 51: 28, 34, pi. 2 guadeloupensis roseolabrum 51: 26-8, 34, pi. 2 guanensis 40: 90 heteroclites 49: 55 imperforata 49: 55 indigna 49: 55 ingens 49: 27, 55 invalida 49: 55 invalida consanguinea 49: 56 invalida simson 49: 55 labeo 51: 26, pi. 2 lamarckii 49: 55 (Caracolus) lowei 42: 78, pi. 4 (Lucerna) lucerna 49: 54 lucerna acuta 49: 27 major, see auricoma m. (Caracolus) marginella 40: 38, 90; 59: 117 marginella transitoria 40: 90 martiniana, see peracutissima m. minor 38: 61 -- see also auricoma m. nobilis 49: 54 nucleola 51: 27 okeniana 49: 56 okeniana fortis 49: 56 pallescens 49: 55 patina, see fuscolabris p. peracuta 49: 55 (Dentellaria) peracutissima 49: 55 264 THE NAUTILUS Polliilces (Dentellaria) peracutissima niar- tiniana 49: 55 provisoria 38: 61 roseolabrum, see guadeloupensis r. sagemon 42: 78, 80 schroeteriana. see tridentata s. semperfluens, see acuta s. and fuscolabris s. simson, see invalida s. sinuata 49: 56 sinuosa 49: 56 sloaneana 49: 56 sloaneana vendryesi 49: 56 soror 49: 55 strangulata 49: 56 sublucerna, see fuscolabris s. transitoria, see marginella t. tridentina 49: 55 tridentina browneana 49: 55 tridentina chittyana 49: 55 tridentina schroeteriana 49: 55 valida 49: 56 vendryesi, see sloaneana v. (Caracolus) welchi 42: 79, pi. 4 Pleuronialaxis 59: 10 Pleuronieris tridentata 36: 11 Pleuropoma 48: 54 Pleuroprocta 39: 14-5, 17 pleuroprocta, Vaginula 39: 14 Pleurostemma 55: 70 Pleurotoma 43: 138; 44: 26; 45: 81; 46: 117; 48: 3 ebur 46: 117 gemmulosa 45: 51 grandimaculata 45: 52 lineolata 45: 124 (Drillia) roseobasis 36: 132 (Clathurella) roseotincta 36: 132 testudinis 36: 132 Pleurotomaria 35: 62 pleurotoniaria, Bela 35: 32 pleurotomaria, Lora 40: 21 pleurotomarius, Fusus 51: 118 Pleurotomoides 51: 116-7 Pleurovalvata 53: 140 plexata. Planorbis 37: 79 plica. Pecten 50: 26 plicaria, Hemicycla 49: 103 plicaria. Turricula 60: 56 plicata, Amblema 44: 47 plicata, Lithasia 35: 134: 52: 128 plicata, Nerita 60: 55 plicata, Placunanomia 59: 39 plicata, Polygyra 40: 8. 66; 44: 17; 54: 19 plicata, Quadrula 36: 48, 54: 44: 89 plicata, Urocoptis 42: 141 plicatilis, Helicina 48: 54 plicatostriata, Goniobasis 56: 132 Plicatula 39: 72 dubia 52: 46 gibbosa 37: 54; 39: 83: 58: 57: 60: 19 plicatula, Modiola 41: 12, 15; 45: 138 -- see also M. demissus p. plicatula, Streptostyla 55: 60 plicatula, Turbonilla 51: 54 plicatulus. Unio (Nephronaias) 35: 25 plicatus, Unio 38: 29; 39: 88 plicifera, Goniobasis 41: 75; 48: 95; 50: 84 plicifera silicula, Goniobasis 45: 35 plicifera, Melania 40: 101 -- see also M. tuberculata p. Plicifusus -- also as subgenus of Tri- tonofusus kroyeri 39: 135; 51: 104 Pliconaias 43: 107 pliculosa, Cerithidea 56: 21-4, 26-7 pliculosa veracruzensis, Cerithidea 56: 22 pliculosum, Cerithium 56: 22 Pliopholyx 58: 35 Ploiochiton 39: 105 Plotia 37: 36 lineata 37: 36 plumosa, Mopalia 58: 102 plumula, Lithophaga 52: 45; 55: 1U9-10; 56: 42 Plumulella 60: 108 -- subgenus of Bankia pluto, Crassispira 48: 4 poculum, Calyptraea 39: 9 Pododesmus macroschisnia 42: 67; 43: 50, 104, 138 (Monia) macroschisnia 47: 102; 56: 42 Poecilocoptis 55: 70 Poecilozonites 60: 94 blandi heilprini 38: 7; 48: 34 bermudensis 37: 33; 38: 7 callosus, see nelsoni c. circumfirmatus 38: 7 dalli 48: 34 heilprini, see blandi h. nelsoni 38: 7 nelsoni callosus 48: 34 reinianus 38: 7 vanattai 38: 7 Poenia -- also as subgenus of Lucidella lirata 57: 48 poeyana, Cylindrella 38: 61 poeyana, Fadyenia 48: 62 poeyana, Urocoptis 40: 91 poeyana variegata, Urocoptis 40: 91 poeyanum, Chondropoma 38: 61; 40: 89 poeyanum gouldianum, Chondropoma 40: 89 poiretiana. Helix (Papuina) 57: 66 poiretiana, Papuina 57: 65-6 Poirieria 59: 142 -- subgenus of Murex polandi, Sinum 49: 136-7, 139 Polinices 35: 88: 36: 110; 41: 76; 53: ill; 54: 138-9 -- see also Polynices alta, see recluziana a. altus 52: 123 265 Policines INDEX TO cora 37: 125 (Euspira) draconis 50: 48; 53: 136; 54: 139 draconus 60: 90 duplicata 37: 56; 38: 50; 39: 38; 43: 35; 44: 30; 54: 20; 56; 143; 58: 60 glauca 52: 46 groenlandica 35: 32; 39: 132 heros 35: 30; 32; 38: 50; 39: 29, 38-9, 132: 56: 58,143; 57:69,58: 20,137-40 immaculata 35: 32; 36: 61; 39: 132; 57: 31 imperforata, see recluziana i. lactea 43: 132; 53: 111 levicula 35: 30 (Euspira) lewisi 50: 48; 53: 22. 136; 54: 139; 60: 90-1 mamilla 55: 2; 60: 55 melanostoma 60: 55 Otis 52: 46 reclusiana 36: 34; 60: 90 recluziana 42: 111; 54: 139 (Neverita) recluziana alta 37: 43; 42: 110 recluziana imperforata 42: 112 triseriata 35: 32; 38: 50; 39: 38; 56: 143 uber 37: 125 Polita 36: 35, 39 binneyana 35: 36; 37: 132; 38: 124; 40: 54; 41: 20 cellaria 39: 103 cellaria complanata 39: 104 chersinella 37: 132; 43: 123 complanata, see cellaria c. dalliana 37: 66-9 dalliana roemeri 38: 42 diegoensis 37: 132 draparnaldi 42: 59 electrina, see hammonis e. gabrielina 37: 130-2; 43: 123 hammonis 36: 38; 37: 79; 38: 93; 39: 124: 40: 47-8, 54, 113: 41: 20; 42: 15; 43: 62 hammonis electrina 41: 83 hommonis 35: 36; 41: 34 indentata 37: 66-7, 132: 39: 80; 40: 47 indentata umbilicata 38: 42; 40: 16 johnsoni 37: 132 lucida 41: 32 roemeri 40: 16 -- see also dalliana r. rhoadsi 40: 64 shepardi 37: 132 spelaea 37: 132 subrupicola 37: 132 umbilicata, see indentata u. whitneyi 37: 132 polita. Cyprea 50: 51-2: 57: 22-3, 27' polita. Euglandina 55: 57 polita. Helix, see H. tridentata p. polita. Nerita 35: 84: 37: 50; 58: 122; 60: 55 polita, Omphalina, see O. cuprea p. polita, Polygyra 45: 136 polita, Staphylea 57: 26 polita, Tellina 51: 94 politulus, Cystiscus 37: 41 politum, Pisidium 35: 113; 48: 48; 59: 29 politum, Teinostoma 59: 1 politus, Modiolus 48: 127-8 politus sagittatus. Modiolus 48: 127 PoUia d'orbignyi 45: 55 pollicaris, Ischnochiton 58: 101 pollicaris. Pilar 46: 76, 109 Polycylus 38: 66 Polydontes 52: 37-9, 41; 53: 69 apollo 52: 37-41, pi. 3 cognatus, see jamaicensis c. imperator 52: 39, 41, pi. 3 (Eurycratera) jamaicensis 49: 56 (Eurycratera) jamaicensis cognatus 49: 56 maurus, see natensoni m. natensoni 52: 37-8, 40-1, pi. 3 natensoni maurus 52: 38, 40, pi. 3 obliteratus 53: 42, pi. 8 sobrina 52: 38-41 torrei 52: 40-1, pi. 3 Polygrata polygrata 41: 125 polygrata, Polygrata 41: 125 Polygyra 36: 141; 38: 38, 56, 58, 130, 133; 40: 65; 41: 52, 86-8; 42: 64, 134; 43: 106. 136. 142; 44: 33. 81. 121, 139; 45: 86. 128, 131, 137; 46: 4, 41, 54; 47: 12, 15; 48: 20, 24, 77, 83; 49: 19, 102-3, 105. 109, 123, pi. 7; 50: 119; 51: 17-8, 53, 135, 137; 52: 22-4, 63, 97; 53: 61: 54: 109; 56: 105: 57: 45 alabamensis 48: 52 -- see also vannostrandi a. alba, see multilineata a. and profunda a. albolabris 35: 42; 37: 9d; 39: 28. 74, 90; 40: 47-8. 66; 42: 35, 140: 43: 66; 44: 17. 44, 129; 45: 34; 46: 40-3; 47: 139, 147; 48: 57; 49: 100; 50: 119, 131; 51: 52. 54. 56. 59, 63; 52: 96-7. 124. 127; 53: 86: 54: 90; 55: 15; 58: 25 albolabris alleni 46: 43 albolabris fuscolabris 46: 42 albolabris major 46: 40-2; 48: 79. 82 albolabris maritima 46: 138; 52: 124, 127 algonquinensis, see multilineata a. aliciae, see monodon a. altispira 45: 138; 46: 91; 48: 79. 81 -- see also hirsuta a. altonensis, see multilineata a. andrewsi 38: 140: 39: 80: 40: 3 andrewsi normalis 35: 41-2 appressa 38: 5-6; 40: 66; 43: 67: 44: 17: 46: 48-9; 51: 23-4: 53: 98 appressa extrema 53: 98 266 THE NAUTILUS Polygyra appressa fosteri 46: 48-9; 51: 23; 52: 96: 53: 98 appressa hubrichti 51: 23-4 appressa linguifera 38: 4-5; 39: 74, 80; 46: 48; 53: 98 appressa perigrapta 46: 58-9, 91; 47: 147; 48: 106; 51: 24; 52: 97; 53: 98 appressa sculptior 38: 5; 46: 48 appressa tryoni 53: 98 approximans 47: 144 arniigera, see columbiana a. auricularis 41: 70 auriculata 38: 61; 41: 70; 49: 109; 52: 23 auriiorniis 40: 16; 51: 106; 55: 97 avara 41: 52; 52: 23 barbigera 46: 59 behri 44: 81 binneyana 40: 3 brevipila 46: 17 brunnea, see townsendiana b. bucculenta. see thyroidus b. (Stenotrema) caddoensis 49: 19; 50: 143 cava, see fraterna c. cereolus 37: 66; 38: 58; 43: 136; 50: 71-2: 55: 102 cereolus carpenteriana 37: 66-9; 55: 102 charlestonensis, see hopetonensis c. chilhoweensis 38: 140; 40: 3; 41: 28; 46: 91; 51: 17 chisosensis 49: 100-1 chisosensis discobolus 49: 101 Christy! 35: 42; 51: 136 cincta 46: 58-9 clappi, see muUani c. clarkii 35: 42; 46: 18, 59, 91; 51: 136 clausa 43: 43, 67; 46: 88; 50: 119-20; 51: 56, 58: 52: 97; 53: 86 clenchi 45: 129, pi. 10 columbiana 35: 37-8; 36: 37, 106; 38: 28, 122. 124; 41: 143; 43: 142; 46: 127-8; 47: 15; 53: 133 columbiana armigera 53: 59 columbiana depressa 49: 134 columbiana megasoma 44: 101-2; 53: 56, 58-9 columbiana oria 47: 15-6 columbiana pilosa 41: 143; 44: 101-2; 48: 47; 49: 134 columbiana shasta 35: 37, 39 complanata, see tridentata c. contortuplicata 52: 23 denotata 48: 57: 53: 86 dentifera 46: 55: 48: 57; 53: 86 depilata 40: 136 depressa, see columbiana d. devia 48: 47 discobolus, see chisosensis d. discoidea, see tridentata d. dorfcuilliana 47: 4-6 edentata 47: 144 edentilabris, see tridentata e. edwardsi magnifumosa 45: 28 efasciata, see profunda e. elevata 43: 67; 44: 17; 46: 18 espicicola 50: 133 espiloca 39: 12; 43: 35; 44: 143; 50: 133, 135 exoleta 48: 36 fallax 44: 128; 48: 22, 50-2, pi. 1; 49: 100; 52: 97; 53: 86 fallax goniosoma 48: 22, 51, pi. 1 fallax obsoleta 48: 53 ferrissii 46: 91; 51: 18, 136 fraterna 37: 96; 39: 80; 40: 47-8; 43: 67. 118; 44: 87; 45: 34; 47: 139; 48: 57: 50: 120; 51: 56, 58-60; 52: 96-7; 53: 48, 86 -- see also monodon f. fraterna cava 53: 48, 85 fraterna friersoni 40: 16 fraudulenta 35: 64; 43: 67; 48: 22, 36. 49-50, pi. 1: 49: 100; 50: 119; 51: 59-60; 53: 86 -- see also tridentata f. friersoni, see fraterna f. and monodon f. frisoni, see tridentata 1. germana 35: 37; 36: 106: 47: 13, 112 germana vancouverinsulae 36: 37-8; 43: 142 goniosoma, see fallax g. hapla 47: 14 harfordiana 37: 133-4 heligmoidea 52: 23 hendersoni. see mullani h. herberti 43: 106; 51: 17, pi. 3 hirsuta 39: 80; 40: 47-8, 115; 43: 43, 67, 118-9; 44: 17, 38, 87, 129; 49: 100; 50: 120; 51: 56, 58-9; 52: 96; 53: 46. 86 hirsuta altispira 35: 42 hirsuta yarmouthensis 40: 115-6 hopetonensis 42: 20; 48: 22, 52-3, pi. 1; 52: 29-30, 97 hopetonensis charlestonensis 48: 22, 53, pi. 1 hopetonensis obsoleta 48: 22, 53, pi. 1 hyperolia, see texasiana h. indentata 37: 66 indianorum 40: 3: 45: 129 inflecta 39: 80; 40: 66; 43: 66; 44: 17. 44:47: 144; 48: 57, 82: 50: 120; 51: 59-60, 106; 52: 29, 97 insularum 52: 23 (Mesodon) jonesiana 51: 135-6, pi. 9 juxtidens, see tridentata j. kiowaensis 40: 3; 45: 141 lingulata 48: 34 loricata 35: 37; 39: 31; 47: 13; 50: i05 loricata lowei 39: 31 loricata minor 39: 31 loricata nortensis 47: 13-4. 112 loricata querceti 39: 31 lowei, see loricata 1. 267 Polygyra INDEX TO magnifumosa 46: 58-9 -- see also edwardsi m. margueritae, see uvulifera m. martensiana 49: 140 maxillata 52: 111 megasoma, see colunibiana m. microdonta 38: 58, 61 minor, see loricata m. mitchelliana 43: 67. 86 monodon 40: 116; 42: 35; 43: 67; 44: 38, 44, 87, 129; 45: 116; 47: 148; 48: 36; 50: 120; 51: 57; 52: 96; 53: 85 monodon aliciae 48: 36 monodon fraterna 43: 42-4 monodon frier soni 39: 12 monodon peoriensis 40: 116 mooreana 40: 16; 47: 79; 49: 101 mullani 44: 122; 45: 83-4 muUani clappi 44: 122 mullani hendersoni 49: 134 mullani olneyae 43: 126; 48: 47 mullani tuckeri 44: 121, pi. 5 multilineata 36: 21; 41: 132-3; 42: 35-6; 43: 67, 118; 44: 38, 44; 49: 119, 124, 126-7; 53: 86 multilineata alba 38: 33; 49: 121 multilineata algonquinensis 36: 21; 41: 132; 44: 22; 49: 120-4 multilineata altonensis 44: 22; 49: 121, 124, 126-7 multilineata rubra 44: 44, 87; 49: 120 multilineata unicolor 38: 33-4 multilineata wanlessi 41: 132; 44: 22; 49: 121-4 myersi 43: 107 (Triodopsis) nantahala 46: 17-8, 58, pi. 2 normalis 46: 42, 58-9, 91 nortensis, see loricata n. obsoleta, seefallaxo. andhopetonensis o. olneyae, see mullani o. oria, see columbiana o. palliata 43: 67; 46: 48, 91; 48: 106; 50: 119; 51: 56 paludosa 40: 90; 48: 34 paucicostata 44: 81, 83 -- see also richardsoni p. penitens 36: 141; 44: 18; 51: 141 pennsylvanica 43: 67; 44: 129; 46: 18; 48: 106; 50: 119 peoriensis, see monodon p. peregrina 45: 130 perpolita 45: 136 pilosa. see columbiana p. pilsbryi 40: 3 pilula 40: 115: 46: 58. 91 pinicola 41: 143 plana 37: 33 planorbula 52: 23 platysayoides 46: 54-5. 103 pleistocenica, see profunda p. plicata 40: 8, 66; 44: 17; 54: 19 polita 45: 136 postelliana 58: 63 profunda 36: 25; 38: 33; 43: 43-4, 66, 118; 44: 44, 87, 129; 49: 71-2, 119; 50: 119; 51: 56; 53: 86 profunda alba 38: 33 profunda efasciata 38: 33; 48: 105; 53: 85 profunda pleistocenica 36: 25; 49: 72-3 profunda strontiana 44: 44 profunda unicolor 38: 33-4 ptychophora 43: 126; 45: 83-4; 48: 47 pustula 37: 66, 68; 42: 20 pustuloides 51: 106; 55: 8 querceti, see loricata q. richardsoni 44: 81 richardsoni paucicostata 44: 81 roemeri 40: 16; 45: 129 roperi 44: 17-8 rubra, see multilineata r. rugeli 35: 42; 41: 142; 46: 58-9, 91; 48: 79-80, 82; 51: 105; 52: 92 rugosa, see tridentata r. rutherfordi 44: 33 (Triodopsis) salmonensis 37: 134 (Triodopsis) sana 46: 88, pi. 7 sayana 39: 80; 46: 103; 48: 57; 53: 86 septemvolva 38: 61; 41: 52; 49: 103; 52: 23 septemvolva volvoxis 37: 69 Shasta 35, pi. 2 -- see also columbi- ana s. sierrana 35: 36, 39, pi. 2 spinosa 47: 147 stenotrema 39: 80; 40: 66; 43: 67; 44: 17 46: 17, 90-1:47: 147; 48: 36. 79; 53: 46 strontiana, see profunda s. subpalliata 51: 136 tehamaensis 44: 18 tennesseensis, see tridentata t. texasensis, see texasiana t. texasiana 40: 16; 42: 66; 47: 16-7, 79; 49: 100-1; 53: 105 texasiana hyperolia 38: 40 texasiana texasensis 38: 40, 92; 47: 17 thyroides. see thyroidus thyroidus 35: 64; 36: 144; 37: 107; 39: 28. 74; 40: 16, 47-8. 66; 43: 35. 43, 67; 44: 17, 44, 129; 46: 41, 88; 47: 148; 48: 24, 57, 82; 49: 100; 50: 119; 51: 50-4, 56, 58. 106; 52: 29. 63, 96- 7, 144; 53: 86 thyroidus bucculenta 39: 74 townsendiana 41: 74 townsendiana brunnea 38: 144; 41: 74 trachypepla 47: 12 tridentata 39: 80; 40: 47, 66; 43: 66-7; 44: 17, 129; 45: 138; 46: 58-9, 91; 47: 58-9. 147: 48: 20-6, 49. 52, 57, 82, pi. 1; 49: 100; 50: 119; 51: 56. 58- 9; 53: 45, 86 268 THE NAUTILUS Ponderosa tridentata complanata 46: 103; 48: 22, 25-6, pi. 1 tridentata discoidea 47: 59; 48: 25 tridentata edentilabris 48: 22, 26, pi. 1 tridentata fraudulenta 43: 49 tridentata frisoni 47: 58 tridentata juxtidens 39: 74; 40: 47-8; 44: 128; 47: 59; 48: 22. 24-5. 49, pi. 1; 52: 97; 53: 46, 86 tridentata rugosa 53, pi. 12 tridentata tennesseensis 48: 22, 25-6, pi. 1 troostiana 45: 130 tuckeri, see mullani t. (Stenotrema) turbinella 46: 89-91 . pi. 7 unicifera 40: 3; 49: 20; 50: 143 unicolor, see multilineata u. and profunda u. uvulifera 37: 66-7; 41: 53; 49: 109; 50: 71-2; 54: 32 uvulifera margueritae 49: 109 vancouverinsulae. see gerniana v. vannostrandi 48: 22, 51-2, pi. 1 vannostrandi alabamensis 48: 22, 52, 97, pi. 1 veternior 50: 128 (Stenotrema) voluminosa 46: 16-7, 58, pi. 2 volvoxis, see septemvolva v. wanlessi, see multilineata w. wheatleyi 35: 42; 45: 138; 46: 58-9. 91 yarmouthensis, see hirsuta y. zaleta 35: 42; 39: 28; 40: 66; 43: 118; 44: 17. 66: 46: 91: 47: 147; 48: 36. 57; 53: 86 Polygyratia 38: 88; 41: 125 polygyratus, Euconulus, see E. chersinusp. Polygyrella 36: 141; 53: 143 (Polygyroidea) harfordiana 37: 134 polygyrella 45: 83; 46: 69 polygyrella, Polygyrella 45: 83; 46: 69 Polygyroidea 37: 134; 53: 143 -- also as subgenus of Polygyrella harfordiana 44: 101 Polymesoda 44: 84 caroliniana 47: 116 mexicana 44: 85 zeteki 44: 85. pi. 7 zulia 44: 85 Polymetis 54: 141 Polymita 48: 32; 50: 34; 52: 69; 56: 82-3 picta 46: 22, 24: 48:37,39,42:50: 141; 56: 82 picta venusta 48: 39 versicolor 37: 86 polymorpha, Dreissensia 35: 63 polymorpha poromphala, Geomitra 35: 14 polymorpha. Helix 35: 12 Polynices 46: 76, 110 -- see also Polinices alta, see recluziana a. (Neverita) duplicata 39: 86; 59: 97 heros 49: 133; 59: 97 mamilla 36: 122 reclusiana 47: 47 (Neverita) recluziana 42: 111 (Neverita) recluziana alta 42: 110 Polynyma -- subgenus of Spissula polynyma. Spisula 35: 32 polynyma alaskana. Spisula 38: 101; 47: 102 polynematicus, Pyrgulopsis 48: 15 Polypus 44: 107 arcticus 35: 31-2 Polyrhytis -- subgenus of Lymnaea Polytaenia 56: 82 polyzonata, Angulyagra 56: 128 Pomacea 41: 63-4; 47: 38, 72; 50: 37-40; 55: 3-4, 125-6, 128; 57: 48, 66 depressa 55: 126-7 maculata 41: 63-4 niiamiensis, see paludosa m. orbata 41: 63-4 paludosa 50: 37-8; 52: 141; 55: 125-6; 57: 66 paludosa niiamiensis 50: 38 pinei 50: 38 Pomatia aspersa 49: 113-4 Pomatias septemspiralis maculata 44: 71 Pomatiopsis 47: 10; 50: 84-5: 53: 67, 96; 60: 105 binneyi 50: 85 californica 50: 84 chacei 50: 84-5 cincinnatiensis 43: 68; 44: 89 lapidaria 37: 25, 31; 40: 120; 43: 42-3, 118-9; 44: 22, 38-9. 89; 50: 85; 53: 96; 54: 145: 58: 113; 60: 85 lustrica 57: 69 praelonga 53: 96, pi. 12 robusta 45: 133; 47: 1, 9 scalaris 40: 120; 44: 22, 38-9: 53: 96 pomatia. Helix 36: 32; 40: 31; 44: 71; 48: 38, 42; 50: 131, 134; 51: 61-3, 69; 52: 96; 54: 145 Pomaulax -- subgenus of Astraea pomilia. Physa 56: 132; 58: 13 pomoensis, Helminthoglypta, see H. arrosa p. Pompholycodea 51: 107 Pompholyx 37: 98; 46; 100; 50: 30; 51: 107 effusa 41: 119-20; 42: 81; 47: 91; 50: 139; 53: 137 effusa costata 42: 81 pompilius. Nautilus 36: 72 pomum, Dolium 55: 2 pomum, Murex 37: 55: 38: 61; 39: 85: 58: 39. 61 ponderosa. Area 36: 60; 37: 55: 39: 82; 41: 15; 42: 63-4: 43: 35: 49: 133 ponderosa. Area (Noetia) 54: 127 ponderosa. Dosinia 44: 94: 46: 111, 114; 48: 4; 57: 5; 59: 34 269 Ponderosa INDEX TO ponderosa, Haliotis 54: 74 ponderosa, Noetia 54: 21; 56: 140; 57: 31; 58: 56 ponderosa, Oxystyla 52: 93; 53: 4-5, pi. 2 ponderosa albata, Oxystyla 53: 5, pi. 2 ponderosa balesi, Oxystyla 53: 5, pi. 2 ponderosa, Paludina 51: 49 ponderosum, Campeloma 53: 74; 56: 132 ponderosum coarctatum, Campeloma 58: 5 ponsonbii, Carlnifex 35: 134 ponsonbyi, Carinifex 42: 121; 43: 103; 44: 79; 53: 137 ponthiervillensis, Potadoma 49: 78 pontificus, Microceramus 38: 61; 41: 52 pontis, Hydrobia 36: 141 pontogenes, Aorotrema 59: 11 pontogenes, Cyclostrema 56: pi. 3 pontogenes, Cyclostrema (Aorotrema) 56: 17; 59: 11 poraria, Cypraea 50: 80; 51: 3; 52: 103, 105; 57: 83-5; 60: 55 porata, Amnicola 57: 68-9; 60: 85-7, 105 -- see also A. limosa p. porata, Paludina 60: 87. 105 porcata, Neritina 50: 45 porcellanea, Rivularia 56: 129 porcina, Corbula 40: 42 porcina, Ilyanassa 49: 138 Poromya flexuosa 50: 91 porosus. Chiton 39: 75 porosus, Cryptoconchus 50: 142 Porphyria 43: 72 minuta 48: 71 porphyria. Oliva 46: 75 porphyria, Voluta 37: 50 porphyritica, Oliva 42: 8 porphyrostoma, Morula 36: 122; 58: 122 porphyrostoma, Strophocheilus 43: 75 porphyrostomus, Placostylus 42: 76-8 porphyrostomus duplex, Placostylus 42: 75 porrecta. Goniobasis 42: 28, 31-2 porrecta. Lacuna 38: 17; 50: 48 porrecta effusa. Lacuna 38: 17 porrecta exaequata. Lacuna 38: 17 porrecta puteoloides. Lacuna 38: 17 porrectus, Stictoplax 58: 102 portagensis, Helisoma, see H. antrosa p. portagensis, Planorbis. see P. antrosus p. and P. bicarinatus p. porteri, Olivella 36: 34 portillonis. Cerion. see C. ramsdeni p. porthuidica, Astarte 35: 32 portlandica. Melanella 41: 104 portlandensis. Poteria 57: 63 -- see also P. varians p. portlandensis, Sagda. see S. spei p. portlandensis. Varicella, see V. vicina p. portoricanus. Ceratodiscus 41: 63 portoricensis. Platysuccinea 54: 61-2, pi. 5 portoricensis. Simpulopsis 54: 61 portoricensis. Varicella (Vagavarix) 55: 25, 27-8. pi. 2 portosanctana. Helix 35: 102 portosanctana gigantea, Helix 35: 102 portosanctana, Pseudocampylaea 35: 102 portuondi, Urocoptis, see U. scalarina p. postelli, Melania 42: 29 postelliana, Polygyra 58: 63 postellii, Goniobasis 42: 67 -- see also G. catenaria p. posti, Helicina 44: 34 Potadoma 45: 71 (Rhinomelania) angulata 45: 71 nyongensis 42: 144; 45: 71 ponthiervillensis 49: 78 Potamides 49: 78; 56: 21 -- also as subgenus of Cerithium fluviatilis 49: 78 iostomus 56: 22, 26 meta 56: 25-6 montagnei 56: 24 (Batillaria) multiformis 49: 2 pacificum 45: 79 palustris 49: 79 sulcatus 49: 79 tenuis 56: 22 (Cerithidea) varicosus 56: 23 Potamis -- also as subgenus of Ceri- thium fuscata 56: 27 pullatus 56: 27 Potamomya 45: 105 inflata 45: i05 Potamopyrgus 44: 143; 48: 91, 114; 52: 87-8; 60: 104 antipodarum 52: 87; 60: 104 auberiana 52: 87 cheatumi 48: 91, 114 corolla 60: 104 ernsti vivens 44: 143 jenkinsi 60: 104 vivens, see ernsti v. Poteria 36: 14-6: 48: 66; 49: 51; 56: 2, 135-6; 57: 62-3 blanchetiana 56: 137 (Crocidopoma) bondi 49: 98 campechiensis, see varians c. caribaea 49: 51 , pi. 3 caymanensis 56: 2 caymanensis oligoptyx 56: 2, 9 corrugata 48: 64, 67, 86-7 corrugata parva 48: 87 corrugata striosa 48: 87 corrugatior 48: 86 -- see also vari- ans c. crassa 48: 86 cycloata 48: 86 densestigmata 48: 86 dubiosa 48: 87 fonticulus 56: 2 gemma 48: 87 inca 56: 135. 137 jamaicensis 48: 86; 56: 135-6 jamaicensis lineata 56: 136 jamaicensis novus-saltus 48: 86 jugosa 48: 87 270 THE NAUTILUS Procerulus lacteofluviatilis 48: 62 laevitesta 56: 3 lineata,see jamaicensis 1. notatior 48: 86 novae-spei 48: 87 novus-spei 48: 87 novus-saltus, see jamaicensis n. oligoptyx, see caymanensis o. pallescens 48: 87 parva, see corrugata p. portlandensis 57: 63 -- see also vari- ans p. rubra, see seminuda r. rudis-planusque 48: 86 rupis-fontis 48: 87 seminuda 48: 66, 86 seminuda rubra 48: 86 striosa, see corrugata s. (Crocidopoma) suturalis 48: 87; 49: 99 varians 48: 62, 86; 49: 51; 56: 135 varians campeachyi 48: 61, 86, pi. 2 varians corrugatior 48: 86 varians portlandensis 48: 86 westmorelandensis 48: 87 zigzag 48: 87 potosiana, Xanthonyx 56: 37 potosiensis, Goniobasis 38: 45 poulsonii, Tritonalia 36: 34; 45: 51 powellensis, lo 38: 142 powelli, Ampullaria 40: 12 poyensis, Placostylus 42: 73-4, 78 poyensis goyettensis, Placostylus 42: 73 praecellens, Megaustenia 43: 52 praecognita, Nerita 35: 121 praecox, Retinella 44: 104; 46: 59; 48: 78, 80 praecox, Vitrinella 60: 14, pi. 2 praelonga, Pomatiopsis 53: 96, pi. 12 praemorsum, Buccinum 37: 50 praenotata, Hua 57: 21 praenotata intermedia, Hua 57: 21 Praeostrea bohemica 57: 90 praerosa, Anculosa 35: 11-2; 43: 10-4; 46: 38; 53: 74-6; 56: 132 praerosa, Melania (Anculosa) 43: 3, 10 praerosa, Melanopsis 50: 12 praerosus, Viviparus 56: 126 praestans, Megaustenia 43: 52-3 praestans khyoungensis, Megaustenia 43: 52 praestans, Vitrina 43: 51 prashadi,Camptoceras (Culmenella) 44: 80 prasina, Quadrula, see Q. pustulosa p. prasinatum. Pleurocera 58: 43 Praticolella 40: 65; 49: 140; 53: 105 berlandieriana 39: 11; 40: 16; 42: 66; 47: 79 campi 40: 16 griseola 38: 61; 40: 90; 59: 144 jejuna 37: 66-8 martensiana 49: 140 mobiliana 55: 97 precursor, Ultimus 53: 2, pi. 1 precursor, Valvata, see V. lewisii p. preglabratus, Planorbis (Planorbina) 40: 35 pretiosum, Dentalium 43: 110 pretiosum, Epitonium 45: 6 priamus, Helix 37: 50 prima, Dissentoma 59: 59 prima, Odostomia 58: 65 primeana, Helicina (Palaeohelicina) 43: 135 Primovula (Pseudosimnia) vanhyningi 54: 46 princeps, Conus 52: 45; 57: 4 princeps, Fasciolaria 43: 38; 55: 114; 57: 4, pi. 3 princeps, Murex 52: 45; 57: 4 princeps, Puncturella35: 86; 39: 131; 54: 3 prisca, Martinella 41: 126 prismaticum, Buccinum 43: 72 Prismatocaulis 39: 14, 18; 44: 136 Prisodon 39: 5 syrmatophorus 39: 3 Prisodontopsis 42: 66 Pristiloma 42: 91; 43: 96, 122, 124, 142; 45: 36 arctica 38: 125; 43: 96, 124; 46: 128; 50: 87; 53: 63, 133 chersinella 43: 124 chersinella wascoense 43: 123-4 gabrielinum 43:. 123 idahoense 43: 126; 45: 84, 86 japonica 41: 40 johnsoni 43: 122-3 lansingi 47: 112 nicholsoni 43: 96, 100, 121-3, pi. 5 stearnsi 36: 37-8; 43: 122-3; 47: 112 subrupicola 43: 123-4; 45: 84, 86 taylori 43: 96, 122 wascoense, see chersinella w. pritchardi, Varicella 40: 91 Proameria 55: 52, 54, 57 -- subgenus of Euglandina proarmifera, Gastrocopta 60: 21-2, pi. 3 problematicus, Spiraxis 49: 25; 53: 10, 15 proboscidiferus, Fusus 52: 18 probum, Pisidium 37: 18 procera, Achatina 48: 85 procera, Gastrocopta 42: 66; 45: 117; 47: 16-7; 50: 98; 51: 106; 52: 15, 29; 53: 77-8 procera mcclungi, Gastrocopta 40: 16; 41: 93; 58: 69 procera riparia, Gastrocopta 40: 16 procera sterkiana, Gastrocopta 40: 16; 58: 69 procera, Urocoptis 49: 57 procera. Varicella (Sigmataxis) 48: 85; 49: 22, 27; 55: 26-7. pi. 1 procerulus, Tornatellides 37: 3; 38: 79 271 Procerum INDEX TO procerum, Cardium 36: 33: 47: 47; 48: 4 procerus, Bulimus 48: 85 procerus, Sigmataxis 55: 29 procerpina, Amnicola 54: 112 Prochilus 59: 120 procissa, Goniobasis 41: 59 procissa, Melania 41: 59 proctorae, Nassarina 49: 139; 50: 21 Prodallia 56: 10 barthelowi 56: 12, pi. 2 dalli 56: 10, pi. 2 johnsoni 56: 12-3, pi. 2 smithi 56: 11-2, pi. 2 Prodiplodon 42: 108 producta. Pyramidula 37: 54 producta. Sayella 53: 44 producta, Syrnola 48: 130 productum, Campeloma 44: 36 proficua. Semele 39: 84; 54: 21; 58: 59 profunda, Allogona 54: 145 profunda. Helix 51: 49; 54: 109 profunda, Polygyra 36: 25; 38: 33; 43: 43-4, 66, 118; 44: 44, 87, 129; 49: 71-2, 119; 50: 119; 51: 56; 53: 86 profunda alba, Polygyra 38: 33 profunda efasciata, Polygyra 38: 33; 48: 105: 53: 85 profunda pleistocenica, Polygyra 36: 25; 49: 72-3 profunda strontiana, Polygyra 44: 44 profunda unicolor, Polygyra 38: 33-4 profundicola, Antiplanes 58: 108 profundicola, Propebela 58: iOB Prohappia 41: 126 projecta, Thais, see T. emarginata p. proles, Epiphragmophora, see E. traskii p. proles, Helminthoglypta, see H. traski p. Promartynia -- subgenus of Tegula Promenetus 49: 48; 59: 71 promera, Tellina 49: 119 pronotis, Monadenia, see M. fidelis p. Pronesopupa 36: 64 Propeamusium alaskense 38: 24 Propebela 58: 108 diomedea 58: 108 profundicola 58: 108 smithi 58: 108 Prophysaon 50: 140; 57: 112 andersoni 35: 97; 38: 125; 46: 128; 53: 133; 57: 114 propinqua, Cypraea, see C. carneola p. and C. leviathan p. propinqua, Physa 48: 47 -- see also P. ampullacea p. propinqua, Schloenbachia 43: 26 propinqua, Urocoptis 40: 91 propinqua. Varicella (Varicellula) 49: 26 propria. Lampsilis 37: 137 proprius, Unio 37': 138-9 Proptera 35: 132 alata 36: 99; 38: 136; 39: 92; 40: 9, 66-7; 44: 47, 90; 46; 68; 47: 147; 49: 80 alata megaptera 59: 110 capax 36: 99 coloradoensis 56: 144 laevissima 36: 99; 41: 19-20 megaptera, see alata m. purpurata 39: 92; 49: 80, 83 Proselenites 41: 124; 54: 132 Proserpina 36: 84-5; 40: 39, 140; 47: 151 bidentata 47: 151; 48: 63 depressa 38: 61; 40: 90, 140 derbyi 36: 85 linguifera 47: 151; 48: 63 linguifera pulchra 48: 63 nitida 36: 84; 47: 151; 48: 63 nitida planulata 48: 63 pisum 47: 151; 48: 63 planulata, see nitida p. pulchra, see linguifera p. swifti 36: 84 proserpina, Amnicola 53: 121, pi. 14; 55: 105 Proserpinella 36: 84-5 berendti 36: 84 Proserpinula 48: 14, 135-6; 54: 61 discoidea 48: 136, pi. 8; 49: 53 infortunata 49: 53 infortunata proserpinula 49: 53 margaritella 49: 53 proserpinula, see infortunata p. proserpinula, Proserpinula, see P. infortunata p. Proserpinus 36: 84-5 Prosopeas javanicum 41: 32 Prososthenia 37: 98 gredleri 58: 134 prostrata. Helix 36: 17 protea, Bythinella 59: 19 protea nura, Hua 57: 21 protea, Hydrobia 50: 42 protea, Paludestrina 38: 43; 41: 120; 47: 29; 48: 92; 59: 19 protea, Tryonia 53: 125; 54: 118; 59: 18 proteus, Cerion 45: 91; 51: 20 proteus, Conus 37: 55; 48: 94; 39: 84 Protobusycon 52: 20 Protoglyptus 53: 113-4 Protoniedea 40: 134 elata 40: 134 Protothaca 43: 109 -- also as subgenus of Venerupis staminea 38: 25 prototranquebaricus noetlingi, Pecten (Chlamys) 50: 54-5 prototypus, Oxystyla, see O. pulchella p. protractus, Donax, see D. fossor p. protranquebaricus paucicostatus, Pecten (Chlamys) 50: 54 272 THE NAUTILUS Pteranodon providentia, Urocoptis, see U. bahamen- sis p. provisoria, Pleurodonte 38: 61 proxima buttoni, Galba 48: 19 proxinia, Goniobasis 40: 11; 50: 84; 52: 125; 56: 132 proxima, Lyninaea 44: 110; 48: 47 proxima, Nucula 56: 140; 58: 56 proxima truncula, Nucula 35: 31; 56: 143 proxima, Scissurella 40: 141 proxima, Scmele 37: 129 proxima, Stagnicola 40: 84-5 proxima buttoni, Stagnicola 47: 124 proxima, Varicella 49: 22 proximum, Chondropoma, see C. fascia p. pruinosa, Urocoptis 55: 70 Psadara catenifera 57; 119 incarum 57: 119 pizarro 57: 119 Psammacoma -- subgenus of Macoma Psammobia californicus 37: 41 Psammodulus 47: 127-9 mexicanus 47: 127-8, pi. 13 psammophora, Cryptaxis 35: 102 Psammotea compacta 58: 99 Psephidia brunnea 43: 50 lordi 37: 41; 38: 25; 53: 22 salmonea 37: 41 Psephis salmonea 58: 99 tantilla 36: 18 (Petricola) tellimyalis 59: 103 Pseudamnicola similis 35: 39 Pseudancylus 35: 58; 38: 85; 39: 44 fluviatilis 40: 108 Pseudantalis 52: 139 rubescens 52: 139 Pseudaperostoma 56: 135, 137 Pseudavicula 42: 66 Pseudhelicarion 42: 67 -- subgenus of Macrochlamys Pseudobba -- subgenus of Camaena Pseudocampylaea 35: 101 lowei 35: 102 lowei minor 35: 102 portosanctana 35: 102 Pseudochama 47: 83, 137; 51: 74-5; 52: 48; 56: 116-9, 123. pi. 12; 59: 104 clarionensis 52: 48, pi. 4; 59: 104 corrugata 47: 84 exogyra 47: 84, 137 granti 47: 137, pi. 8; 52: 49 inermis 47: 83, pi. 8; 58: 96-7, pi. 4 inezae 56: il8, 122, 124, pi. 15 janus 47: 84 panamensis 47: 84 radians 51: 77 radians variegata 51: 75, 77-8, 143; 52: 28; 56: 116, 118, 122-3. pi. 12 Pseudocingulina 50: 108 Pseudocolumna 44: 33 pseudogilva, Cepolis 52: 78 Pseudoguppya 39: 34 pseudohexagonum, Dentalium (Antalis) 56: 69 Pseudohyalina 40: 64 limatula 45: 34 minuscula 38: 42; 40: 17, 47 nummus 38: 42; 40: 17 singleyana 38: 42; 40: 17 Pseudohyalus 43: 144 Pseudoleila 36: 8 Pseudoliotia 59: 72 Pseudomalaxis 48: 129; 59: 9 actoni 48: 129 balesi 59: 9-10, pi. 2 (Paurodiscus) lamellifera 48: 128-9, pi. 7; 59: 9-10 nobilis 48: 129; 59: 9 Pseudomarginella 36: 34 Pseudomelatoma 52: 21; 60: 8 moesta 44: 93 penicillata 52: 21-2 penicillata semiinflata 52: 21 semiinflata 52: 21-2 semiinflata redondoensis 52: 21-2; 57: 115-6 torosa 44: 93; 50: 47, 49 Pseudomonotis 57: 90-2 hawni 57: 91 speluncaria 57: 91 Pseudonerita 50: llO-l Pseudopeas 40: 143: 48: 84; 58: 85 egens 58: 85, 87 pulchellum 58: 85 translucidum 40: 143 pseudopictus, Liguus, see L. solidus p. Pseudopythina rugifera 43: 50 Pseudorbis 59: 54 Pseudorotella 59: 2 floridensis 59: 2 solida 59: 2 Pseudosimnia 54: 46 -- also as subgenus of Primovula adriatica 54: 46 carnea 54: 46 Pseudosubulina 40: 64; 52: 133; 53: 9, 11-2, 14 -- subgenus of Spiriixis Pseudosuccinea 39: 143 -- also as subgenus of Lymnaea columella 37: 30: 40: 50; 47: 16; 48: 59 columella chalybea 37: 30 Pseudotrapezium 59: 108 pseudotrivolvis, Helisonia 40: 50 Pseudoveronicella 39: 14. 17 Pseudovitrea 43: 122 minuscula 42: 21. 66: 43: 67. 118; 44: 45 minuscula alachuana 42: 21 singleyana 42: 21, 66 Psilunio 53: 141 Pteranodon 55: 20-1 , 64 273 Pteria INDEX TO Pteria colymbus 35: 99; 49: 117; 58: 57 eximia 35: 99 peruviana 37: 127 sterna 46; 74 vitrea 56: 64 xanthia 56: 64, pi. 3 Pterides 37: 98 rhabdus 37: 98 pterocaulis, Vaginula 39: 15 Pterocera bryonia 55: 2 chiragra 55: 2 lanibis 55: 2; 60; 55 Pterodiscus 45: 125-6 alatus 36: 17 petasus 45: 125 Pterotyphis 57: 40; 58: 34 ptyalum, Bostryx 57: 122 Ptychatractus ligatus 40: 21 Ptychobranchus 42: 52 fasciolare 40: 66; 42: 52: 44: 47; 49: 81 fasciolare lacustre 42 : 52 flavescens, see greeni f. foremanianum 37: 56-7 greeni 37: 56-8 greeni flavescens 37: 57 lacustre, see fasciolare 1. laevis 36: 44 murinum 36: 43 pfisteri 36: 43 trinacrum 37: 56 Ptychocentrum 56: 91 -- subgenus of Coelocentrum Ptychocochlis 36: 14-6; 56: 135; 57: 62-4 ptychodes, Hyalosagda 49: 52 ptychophora, Allogona 58: 34 ptychophora, Polygyra 43: 126; 45: 83-4; 48: 47 Ptychotrema 39: 31; 49: 93 affectatum 49: 96 degneri 49: 96, pi. 6 dohrni 49: 96-7 rosenbergiana 49: 96 pubescens, Aquebana 54: 59-60, pi. 4 pubescens, Aquebana (Exsuavitas) 52: 143 pubescens, Exsuavitas 54: 58-9 puella subpuella, Cochlostyla (Corasia) 57: 18 puella. Varicella 49: 26 pugetensis, Pecten 51: 118-9 -- see also P. hastatus p. and P. islandicus p. pugetensis, Striatura, see S. milium p. pugilis, Melanoides 49: 76-7, 79 pugilis, Strombus 37: 50, 53, 55; 39: 82, 86; 58: 108; 60: 34 pugilis alatus, Strombus 49: 133; 54: 20; 57: 143; 58: 61, 108; 59: 35 pugnax, Orthaulax 41: 4 pulchella, Eutrochatella 48: 63 pulchella cathartensis, Eutrochatella 48: 11, 63, pi. 2 pulchella cavearum, Eutrochatella 48: 10, 63, pi. 2; 49: 26 pulchella grayana, Eutrochatella 48: 63 pulchella multicarinata, Eutrochatella 48: 63 pulchella scitula, Eutrochatella 48: 63 pulchella, Goniobasis 43: 70 pulchella, Laguncula 54: 119 pulchella, Oxystyla 53: 7, pi. 2 pulchella prototypus, Oxystyla 43: 77; 48: 5 pulchella, Salasiella 54: 83 pulchella, Vallonia 42: 123, 135; 43: 43-4, 68; 44: 44; 45: 34; 50: 121; 51: 57, 63, 140; 52: 96-7; 53: 88; 54: 28, 30; 56: 53; 57: 132; 59: 68; 60: 99 pulchellum, Caecum 39: 66; 58: 61 pulchellum, Pisidium 40: 27; 41: 120 pulchellum, Pseudopeas 58: 85 pulchellus, Callistochiton 51: 26; 58: 101 pulcherrima, Acmaea 40: 140 pulchior, Callistochiton 58: 101 pulchra, Cerithidea 36: 51 -- see also C. hegewischii p. and C. montagnei p. pulchra, Cerithidia, see C. montagnei p. pulchra, Littorina 45: 80 pulchra, Proserpina, see P. linguifera p. pulchra, Semele 36: 33 pulchricostus, Pecten 50: 26 pulchrior, Cepolis, see C. subconica p. pulchrior, Mangilia 37: 41 pulchrum, Cerithium 56: 25-6 pulcia, Odostomia (Chrysallida) 37: 42 pulicarius, Conus 36: 121 pulla, Cyphoxis 42: 113 pullatus, Potamis 56: 27 pulligera, Neritina 49: 79 pulligo, Tegula (Promartynia) 50: 49 pulloidea, Phasianella 37: 43 -- see also P. compta p. pulloides, Tricolia 50: 49 pumila, Geomelania, see G. striosa p. pumilio, Ennea (Uniplicaria) 49: 94 pumilio. Gulella 49: 93-5, pi. 6 pumilio. Pupa (Ennea) 49: 93-4 pumilis, Pupa(Orcula) 49: 94 pumilum. Gyrotoma 58: 47 pumilum, Opeas 39: 2; 40: 138; 49: 25; 58: 85-7 punctata. Bulla 52: 44 punctata. Codakia 60: 57 punctata, Columbella 60: 56 punctata, Imbricaria 60: 56 punctata, Rhachis. see R. mageni p. punctata. Taras 49: 117 punctatissimus, Bulimus 60: 57 punctatostriatus, Donax 37: 122, 130; 52: 45 punctatum. Monoceros 38: 19-20 punctatum, Onchidium 51: 87 punctatum, Pisidium 36: 40-1: 37: 30: 42: 24-5: 48: 48 274 THE NAUTILUS Purpura punctatum simplex, Pisidium 37: 30; 42: 24 punctatus, Drymaeus 57: 126 puncticulatus. Conus 52: 45 punctocaelata, Rictaxis 36: 34 Punctodiscops 3fl: 34: 41: 125 punctostriata. Donax 37: 82, 84 punctostriatus, Actaeon 37: 54 punctostriatus, Acteon 53: 21; 56: 143 punctostriatus caelatus, Donax 58: 99 punctostriatus. Scaphander 40: 22 Punctoterebra 37: 61. 63 -- subgenus of Terebra punctulata. Acn^^ea 38: 60 punctulata, Cypraea 50: 80; 51: 3: 52: 105; 57: 82 punctulata. Monoceros 38: 19, 21 punctulata, Nerita 54: 24-7 punctulata, Neritina 47: 50; 51: 40-2, pi. 5; 52: 45; 54: 66 punctulata avellana, Plebecula 35: 14 Punctum 40: 64; 41: 128; 144; 48: 47; 53: 15 bristoli 38: 7 conspectum 37: 79; 38: 124; 46: 128; 48: 47; 50: 88: 53: 63 minutissimum 48: 57-8; 55: 7, 97; 57: 133 -- see also pygmaeum m. pygmaeum 35: 40: 36: 38; 38: 42; 40: 17, 48. 58. 113; 43: 119, 144; 44: 114; 51: 42; 56: 54 pygmaeum minutissimum 43: 133; 52: 94 vitreum 53: 47 Puncturella cucullata 38: 27 eyerdami 37: 133; 38: 23, 27 galeata 38: 27 hendersoni 40: 141 princeps 35: 86; 39: 131: 54: 3 Pupa 36: 63; 39: 42; 50: 17 alveola 36: 122 beltiana 44: 108 crassilabris 57: 34-5 fusiformis 58: 31-2 incana 43: 101 inflata 60: 58 (Pupoides) marginata 39: 42 peponum 47: 60 (Ennea) pumilio 49: 93-4 (Orcula) pumilis 49: 94 striatella 57: 35 pupa, Euglandina 55: pi. 5 pupa. Euglandina (Guillarmodia) 55: 54-7 60 pupa, Nerita 50: 110-3 pupa, Neritina 38: 61; 53: 68 pupaeformis, Goniobasis 58: 46 pupaeformis, Urocoptis 49: 58 Puperita 50: Hi Pupilla 36: 63, 65-6; 43: 54, 57; 44: 108; 60: 25 blandi 37: 79; 38: 65; 44: 114; 54: 29- 31, 96, 116-7; 55: 143-4; 56: 53 dextroversa 43: 56 -- see also syngenesd. hebes 37: 79; 42: 124; 54: 96, 117; 55: 143 muscorum 36: 65; 40: 16, 77, 112; 43: 134; 47: 2, 8, 139; 50: 10, 18; 53: 77; 60: 25 muscorum sinistra 60: 24-5 signata 50: 9 sinistra, see muscorum s. stoneri 43: 143 syngenes 43: 55, 57; 45: 117; 54: 31 syngenes dextroversa 42: 124; 43: 57; 44: 114; 45: 117; 54: 30, 117 pupilla, Pupillaria 38: 27 Pupillaria -- also as subgenus of Margarites cinerea 38: 27 pupilla 38: 27 pupillus, Margarites (Pupillaria) 50: 49 Pupinella rufa alba 45: 29 Pupisoma 36: 64; 40: 64 comicolense 41: 144 dioscoricola 37: 66-7, 69; 42: 21; 48: 88 dioscoricola insigne 39: 78; 42; 66 japonicum 43: 52 mediamericanum 41: 144 minus 37: 65-6; 42: 21 orcula 43: 52 pupoidea, Cerithidea 56: 21 pupoidea, Lyogurus, 37: 30 -- see also Lyogyrus p, Pupoides 36: 63, 65: 44: 108, 142; 50: 119 -- also as subgenus of Pupa beltianus 44: 108 eupleura 44: 142 hordaceus 36: 65; 44: 142: 55: 144 inornatus 53: 77 marginatus 36: 65; 38: 42; 40: 16; 42: 66:^43: 44. 57, 68; 47: 16-7; 48: 82; 50: 98. 121; 51: 57, 106; 52: 15. 29; 53: 77-8. 88; 54: 31; 58: 62, 69. 127- 8; 60: 99 marginatus nitidulus 39: 42 modicus 37: 65, 67-8 nitidulus, see marginatus n. pupoides, Bulimus 60: 57 pupoides, Clausilia 60: 58 pupoides, Lyogyrus 47: 149 -- see also Lyogurus p. Pupoidopsis hawaiensls 39: 144; 42: 70 pura, Mangilia 47: 146 purificata, Bellamya 56: 126 Purpura 35: 83; 38: 92; 43: 72; 60: 27 -- also as subgenus of Thais aperta 40: 80-1 bulbiformis 40: 81 275 Purpura INDEX TO crassa 45: 75 foliacea 40: 81 foliata 50: 47 floridana, see haemastoma f. haemastoma floridana 41: 141 harpa 35: 84; 40: 81 imbricata 40: 101-2 intermedia 35: 84 lapillus 40: 101-2; 45: 123; 46: 103 nuttallii 37: 42 spicata 38: 20 spirata 38: 19-20 purpurascens, Chama 47: 81 purpurascens, Conus 37: 123; 52: 45; 57: 4 purpurascens, Semele 39: 84 purpurata, Proptera 39: 92; 49: 80, 83 purpuratus, Pecten 37: 127; 38: 113 purpurea, Gemma 56: 144; 58: 58 -- see also G. gemma p. purpurea, Mya 40: 43 purpurea, Simnia 40: 17 purpurella, Goniobasis 36: 119 purpureus, Mytilus 37: 50 purpurissata, Chione 47: 47 Pusia -- subgenus of Mitra pusilla, Alcadia (Palliata) 48: 12 pusilla. Byssoarca 45: 128 pusilla, Melanella 36: 122 pusilla. Natica 56: 140-1; 58: 60 pusilla. Olivella 52: 29 pusilla, Ranella 36: 122 pusilla, Tornatellina 47: 60 pusillum, Pisidium 37: 22; 40: 27; 59: 25 pusillus, Conus, see C. ceylonensis p. pusillus. Octopus 46: 44 pusio, Pisania 53: 38 pustula, Polygyra 37: 66, 68; 42: 20 Pustularia 49: 137; 57: 23 -- also as subgenus of Cypraea annulata 58: 144 cicercula 57: 23, 83; 58: 144 globulus 57: 23-4 nucleus 49: 137 pustulata 45: 77; 52: 46 pustulata, Pustularia 45: 77; 52: 46 pustulata, Quadrula 36: 47, 54 pustuloides, Polygyra 5i: 106; 55: 8 pustulosa. Quadrula 36: 47. 54, 77-8; 39: 89; 40: 66; 44: 89 pustulosa kieneriana, Quadrula 36: 78 pustulosa mortoni, Quadrula 39: 88-9 pustulosa pernodosa, Quadrula 36: 76-7 pustulosa prasina. Quadrula 36: 47; 44: 44, 47 pustulosa schoolcraftensis, Quadrula 36: 47 pusulosus, Chiton, see C. marmoreus p. putris. Helix 36: 31 putris. Succinea 43: 62; 50: 133-4; 53: 133 pvcna, Olivella 55: 12. 92-3; 57: 73, 75. 77-80 Pycnogyra 40: 64; 60: 95 pycnonema, Rimula 57: 38-9, pi. 7 pygmaea, Acanthochitona 50: 141 pygmaea, Chione 36: 11 pygmaea, Euglandina 49: 98, pi. 7 pygmaea, Geomelania 48: 88 pygmaea, Goniobasis 58: 46 pygmaea, Oreohelix 35: 14 pygmaea, Venus 49: 119 pygmaea, Vertigo 36: 64; 47: 8; 50: 121; 51: 57; 60: 98-9 pygmaeum. Punctum 35: 40; 36: 38; 38: 42; 40: 17, 48, 58, 113; 43: 119, 144; 44: 114; 51: 42; 56: 54 pygmaeum minutissimum, Punctum 43: 133; 52: 94 pygmaeus, Anachis 52: 44 pygmaeus, Colus 35: 32, 88; 40: 21 pygmaeus, Fusus 35: 88 pygmaeus, Somatogyrus 58: 8 pyra, Trochus 37: 50 pyramidata, Geomelania 48: 88 pyramidatum, Gyrotoma 58: 47 pyramidatum. Pleurobema 36: 96 pyramidatum, Quadrula 36: 96 Pyramidella 37: 36; 38: 111; 45: 35; 53: 43; 59: 74 -- also as subgenus of Helix (Longchaeus) adamsi 37: 42 crenulata 58: 60 fusca 36: 60; 37: 54; 38: 50; 56: 143 (Triptychus) hermosa 55: 122 nivea 46: 118 oahuensis 36: 122 panamensis 52: 46 sulcata 36: 122 winkleyi 56: 144 Pyramidula 41: 123; 52: 115 anthonyi, see cronkhitei a. alternata 36: 25; 37: 96; 39: 28: 43: 42- 4 alternata mordax 44: 128 cronkhitei 38: 10. 124 cronkhitei anthonyi 37: 97; 39: 124; 40: 58 mordax see alternata m. (Gonyodiscus) patula 38: 86 producta 37: 54 retexta 35: 40 rupestris 50: 18 semiplicata 35: 40 striatella 47: 8 Pyrazus -- subgenus of Cerithium Pyrene 45: 108 mercatoria 53: 38; 55: 44 Pyrgiscus -- subgenus of Turbonilla Pyrgodomus 37: 89 Pyrgolampros 45: 67; 51: 54 -- also as subgenus of Turbonilla mioperplicatulus 51: 54 Pyrgophorus 52: 87 Pyrgula 37: 98 pyrgula. Opeas 58: 86-7 276 THE NAUTILUS Quercinus Pyrgulopsis 58: 35; 60: 76, 78 archimedis 60: 76, 148, pi. 7 letsoni 42: 55-6; 43: 103; 51: 68 nevadensis 41: 141; 43: 103; 48: 15; 53: 137; 60: 77, 148, pi. 7 polynematicus 48: 15 spinosa 52: 87 vinctus 48: 15 pyriformis, Cypraea, see C. turdus p. pyriformis, Cypraeolina 38: 26; 42: 1; 50: 47; 51: 103 pyriformis, Gibberula 58: 100 pyriformis, Merovia 36: 34; 37: 41 pyriformis, Odontostomus 54: 92, 94 Pyrochilus 59: 117 pyrrhacme, Rissoa 37: 33 Pyrula decussata 37: 122, 124 martiniana 47: 121 papyratia 37: 55; 39: 86 perversa 53: 23 pyrulata, Austrocypraea 40: 18 Pyrulofusus harpa 46: 126 pyruloides, Fulgur 51: 48 pyrum, Busycon 37: 54; 39: 85; 52: 89- 91, pi. 7; 54: 20; 58: 62 pyrum. Cassis 41: 72 pyrum, Cypraea 40: 129 pyrum, Voluta 37: 50 Pythohelix 59: 129 quadra, Lora 38: 25 quadrae. Odostomia (Evalea) 38: 26; 51: 102 quadragenarium, Cardium 36: 33 quadrangularis. Samarangia 55: 73, pi. 6 quadrangularis, Venus 55: 74 quadrans, Diplodon 47: 72-4 quadrans, Macoma 51: 125 quadrans, Unio 47: 72, 74 quadrata, Bellamya 56: 125-6 quadrata acutecarinata, Bellamya 56: 126 quadrata boettgeri, Bellamya 56: 126 quadrata dispiralis, Bellamya 56: 126 quadrata ecarinata, Bellamya 56: 126 quadrata fantozatiana, Bellamya 56: 126 quadrata heudei, Bellamya 56: 126 quadrata lapillorum, Bellamya 56: 126 quadrata minor, Bellamya 56: 126 quadrata orientalis, Bellamya 56: 126 quadrata reevei, Bellamya 56: 126 quadrata turrita, Bellamya 56; 126 quadrata, Nenia 58: 81 quadrata boettgeri, Nenia 58: 81, pi. 3 quadrata heudei, Vivipara 59: 66 quadratus, Viviparus 59: 65-6 quadratus grahami. Viviparus 59: 65, pi. 7 quadragenarum, Cardium 44: 92 quadricolor. Anoma 49: 21 quadricolor, Anoma, see A. splendens q. quadricostatum. Dentalium 47: 146 quadridens, Gastrocopta 44: 114 quadrimaculata, Cypraea 58: 132 quadrisulcata, Divaricella 42: 85; 49: 118; 52: 28; 56: 142; 58: 58 Quadrula 35: 18; 36: 2, 74; 52: 125 apiculata 39: 90 aspera 39: 90 asperata 36: 76, 78 coccineum 36: 49; 41: 92 contraryensis, see quadrula c. costata 41: 92 cylindrica 36: 2; 38: 29 ebenus 36: 48, 54; 44: 89 elliotti 36: 75 forsheyi 56: 144 fragosa 36: 47 -- see also quadrula f. granifera 36: 48 (Crenodonta) heros 36: 25, 48, 54; 45: 57; 47: 30 houstonensis 56: 144 kieneriana, see pustulosa k. lachrymosa 36: 47, 54 metanevra 36: 48 metanevra wardii 36: 48; 40: 66 mortoni, see pustulosa m. nobilis 39: 90 nodulata 36: 47 obliqua 36: 49 pernodosa. see pustulosa p. plicata 36: 48, 54; 44: 89 prasina,see pustulosa p. pustulata 36: 47, 54 pustulosa 36: 47; 54, 77-8; 39: 89; 40: 66; 44: 89 pustulosa kieneriana 36: 78 pustulosa mortoni 39: 88-9 pustulosa pernodosa 36: 76-7 pustulosa prasina 36: 47; 44: 44, 47 pustulosa schoolcraftensis 36: 47 pvramidatum 36: 96 quadrula 36: 47; 39: 89-90; 44: 47, 89 quadrula contraryensis 39: 90 quadrula iragosa 39: 90 refulgens 39: 89 rubiginosa 36: 48; 41: 92; 44: 89 schoolcraftensis, see pustulosa s. solida 36: 49 sphaerica 39: 89 succissa 36: 73 triumphans 36: 74 tuberculata 36: 48; 41: 92 undata 36: 54 undulata 36: 48 verrucosa 36: 47; 39: PO wardii, see metanevra w. quadrula. Quadrula 36: 47: 39: 89-90; 44: 47, 89 quadrula contraryensis. Quadrula 39: 90 quadrula, fragosa. Quadrula 39: 90 quadrulus, Unio 51; 93; 53; 35 quailii. Sininia 57: 5 quangdungensis, Angulyagra 56: 128 quercinus, Conus 36: 121 277 Quesadai INDEX TO quesadai, Opisthosiphon 45: 95, 98 Quincuncina 36: 1-3 burkei 36: 1-3, pi. 1 quinta, Odostomia 58: 64 quirozi, Streptostyla 55: 56 -- see also S. irriqua q. quitensis, Bulimulus 53: 111-3 quitensis, Naesiotus 53: 112, 114-5, 117, pi. 13; 55: 103 quitensis ambatensis, Naesiotus 53: 117-8, pi. 13 quitensis antisana, Naesiotus 55: 103 quitensis irregularis, Naesiotus 53: 115 quitensis jacksoni, Naesiotus 53: 116-7, pi. 13 quitensis orlnus, Naesiotus 53: 116, 118, pi. 13 quitensis vermiculatus, Naesiotus 53: 117- 8, pi. 13 Quoya 51: 87-8 indica 51: 87 quoyi, Camaena (Pseudobba) 58: 117 radians, Cellana 38: 121 radians, Ischnochiton 58: 101 radians, Lucina 49: 117-8; 58: 58 radians, Pseudochama 51: 77 radians variegata, Pseudochama 51: 75, 77-8, 143; 52: 28; 56: 116, 118, 122-3, pi. 12 radians. Trivia 37: 125 radians, Unio 37: 101 radiata, Cardita 52: 44 radiata, Carditamera 37: 128 radiata, Climacia 59: 77 radiata, Collonia 59: 77 radiata, Corbicula 47: 77 radiata, Liotia 43: 72 -- see also L. acuticostata r. radiata, Lucina 49: 117-8 radiata, Margaritifera 49: 117 radiata, Margaritiphora 38: 61 radiata, Ostrea 47: 63 radiata, Phacoides 49: 117 radiata, Tellina 37: 50; 49: 119; 58: 37; 59: 36 radiatilis, Ancylus 37: 7 radiatula, Retinella 44: 17; 53: 63 radiatula, Vitrea 41: 42; 53: 133 radiatus, Heliacus 57: 5 radiatus, Lampsilis 43: 88; 44: 69-70; 49: 80; 58: 79; 59: 29 radiatus Pecten 47: 63 radicata, Tellina 37: 50 Radiocentrum 44: 73 -- subgenus of Oreohelix Radioconus -- subgenus of Radiodiscus Radiodiscus 40: 64; 41: 123, 144; 43: 127- 8: 52: 115-6; 58: 30 (Radiodomus) abietum 43: 96, 100-1, 124, 126-7, pi. 6; 45: 84, 86 amoena 41: 128 andium 58: 30 (Radioconus) bactricola 43: 126-7 coppingeri 52: 116 costaricensis, see millecostatus c. (Radioconus) ditzleri 41: 128 goldi 41: 128 hermanni 35: 49 magellanicus 52: 116 mariae 35: 49 millecostatus 43: 126 millecostatus costaricensis 43: 126-7 orizabensis 35: 49; 39: 29 patagonica 35: 49; 52: 115 peruvianus 58: 30 riochicoensis 52: 116 Radiodomus 43: 96, 128 -- subgenus of Radiodiscus radiolata rushii, Partula 39: 21 radiolata strigata, Partula 39: 21 Radix 39: 143; 43: 38; 46: 137 -- also as subgenus of Lymnaea ampla 44: 113; 46: 97 auricularia 44: 45; 48: 144; 56: 52, 54; 58: 144 radix, Murex 43: 135; 46: 110 radula, Comptopallium 58: 53 radula, Ostrea 37: 50 radula, Pecten 38: 118; 49: 29; 50: 25 Raeta 48: 119-20 -- also as subgenus of Labiosa canaliculata 37: 55; 43: 35 lineata 40: 100 undulata 37: 122; 38: 99 rafinesqueana, Lampsilis 41: 138, pi. 1 ragsdalei, Bulimulus, see B. dealbatus r. ralstonensis. Discus 55: 22 ralstonensis, Gonyodiscus 50: 128 ramburi, Thalotia 58: 100 ramentosa, Helminthoglypta, see H. nickliniana r. rameus, Murex 37: 50 ramsdeni, Ceratodiscus 41: 62-3 ramsdeni, Cerion 47: 104-7 ramsdeni portillonis, Cerion 47: 105-6 ramsdeni turgidum, Cerion 47: 106-7 ramsdeni, Helicodiscus 56: 55-6 Ramsdenia 45: 94 ramulosus, Murex 37: 51 randolphi. Discus 55: 22 randolphi,.Melanella 46: 126 randolphi, Pisidium 39: 71; 48: 48 randolphi, Zonitoides 55: 22 Ranella (Aspella) ancepts 36: 122 caelata 45: 82 caudata 35: 88; 51: 92 pusilla 36: 122 Ranellina pilsbryi 40: 144 rangelina, Zachrysia 52: 38 Rangia 49: 132; 60: 34 cuneata 39: 12; 49: 132-4; 60: 34 cuneata rostrata 60: 34 flexuosa 54: 21 rostrata, see cuneata r. 278 THE NAUTILUS Reflexa rangii, Melibe 35: 50 raninus, Strombus 55: 108; 56: 18-9, pi. 4 raninus nanus. Strombus 56: 19, pi. 4 ranula, Mure-\ 37: 51 rapacia. Murex 37: 51 rapaeformis, Leptoxis 35: 10 Rapana thomasi 40: 32 rapax. Varicella 49: 26 Raphitoma amoena 57: 107 rarinodosa, Melania 43: 7 rarinotata, Anguispira, see A. alternata r. rashleighana, Cypraea 36: 72; 50; 80; 57: 23: 58: 106 rathouisii, Hyalina 56: 40 rathouisii, Tengchiena 56: 41, pi. 6 rattus, Conus 41: 44; 60: 56 raveneli, Epitonium 45: 7, pi. 1 raveneli. Pecten 38: 117-8; 52: 28; 58: 57 raveni, Brachypodella 39: 42; 41: 94 raveni sanctabarbarae, Brachypodella 39: 42 raveni, Cistula 37: 90 raveni, Cistulops 37: 93; 39: 43 Ravenia 53: 11 ravida, Alectrion 36: 121 ravistellus, Elliptic 35: 27 ravistellus, Unio (Nephronaias) 35: 25 rawsoni, Batillaria, see B. minima r. rawsoni, Calliostoma, see C. jujubinum r. rawsoni, Cerithium 56: 23 raymondi Ancylus 37: 12 raymondi, Lepidochitona 46: 123; 49: 43 raymondi, Musculium 37: 78; 40: 30 -- see also M. ryckholti r. raynoldsanus, Viviparus 44: 36 raynoldsianus, Viviparus 44: 36 Realia 55: 42-3 recisa, Succinea 57: 47 reclivata, Neritina 45: 67-8; 50: 111 reclivata sphaera, Neritina 45: 67, pi. 3 reclusa, Ethalia 59: 5 reclusr . Teinostoma 59: 5 reclusiana, Neverita 42: 109, 111-3, pi. 6 -- see also N. recluziana and subsp. reclusiana alta, Neverita 42: 112-3 reclusiana imperforata. Neverita 42: •111, 113 reclusiana. Polinices 36: 34; 60: 90 reclusiana. Polynices 47: 47 recluziana, Neverita 42: 109 -- see also N. reclusiana and subsp. recluziana alta, Neverita 42: 110-1 recluziana imperforata. Neverita 42: 110-2, pi. 6 recluziana. Polinices 42: 111; 54: 139 recluziana alta, Polinices (Neverita) 37: 43: 42: 110 recluziana imperforata. Polinices 42: 112 recluziana. Polynices (Neverita) 42: 111 recluziana alta, Polynices (Neverita) 42: 110 recta, Lampsilis 35: 131; 36: 100; 44: 90 recta latissima, Lampsilis 35: 131 recta, Ligumia 44: 47; 49: 81; 59: 110 recta latissima, Ligumia 36: 100; 40: 66; 44: 90; 54: 9 Rectartemon 38: 88; 39: 34; 41: 127 conoideus 41: 127 jessei 38: 86-7, 89; 41: 127 martensianus 41: 127 miilleri 41: 127 Rectaxis 53: 9-10 -- subgenus of Spiraxis Rectiplanes 58: 108 santarosana 58: 108 rectirostris, Chrysodomus 59: 61-2 rectirostris, Exilia 59: 62 rectirostris, Exilioidea 59: 61-3, pi. 7 rectirostris hertleini, Exilioidea 59: 63 rectirostris, Sipho 59: 61 rectirostris, Tritonofusus (Plicifusus) 59: 61 rectius, Dentalium 53: 22 Rectobelus 40: 143 Rectoleacina 55: 52-3 -- subgenus of Streptostyla rectus, Obeliscus 40: 143 recurva, Strombina 37: 124 recurvirostra, Turbinella 52: 85 recurvirostris, Murex 54: 45 recurvirostris citrinus, Murex 54: 45 recurvirostris delicatus, Murex 54: 45 recurvirostris nigrescens, Murex 54: 45 recurvirostris rubidus, Murex 54: 45 recurvirostrum, Buccinum 52: 75 recurvirostrum, Cassis 52: 75 recurvirostrum, Latirus 52: 85 recurvus, Mytilus 38: 94; 43: 35; 54: 21- 58: 57 redense, Sphaerium 57: 95 redfieldianum, Choanopoma 48: 65 redfieldianum, Choanopoma (Tudorops) 48: 60 redfieldianum magnitesta, Choanopoma 48: 65, pi. 2 redfieldianum magnitesta, Choanopoma (Tudorops) 48: 60 redondoensis, Aligena 55: 49, pi. 4 redondoensis, Burchia 57: 116 reductesignata, Cypraea, see C. neglecta r. reducta, Helicina, see H. neritella r. reediana, Helminthoglypta 45: 134-5, pi. 11 reeveana. Area (Barbatia) 37: 126 reevei, Bellamya , see B. quadrata r. reevei, Columbella 58: 100 reevei lubanicus, Cyclophorus 44: 141 reevei, Fasciolaria, see F. gigantea r. reevianum, Cerithium 56: 24 reflexa hemphilliana, Galba 37: 23 279 Reflexa INDEX TO reflexa hemphilliana, Limnaea 37: 23 reflexa, Lymnaea 37: 23-4; 51: 49; 54: 7 reflexa, Obliquaria 36: 99; 44: 47 reflexa, Stagnicola 44: 45; 51: 130 refulgens, Quadrula 39: 89 Regina 45: 26 regina, Cerion 51: 19-22 regina lyrata, Eutrochatella 40: 89 regina, Helicina 41: 22 regina, Tegula 59: 125 regina, Uvanilla 36: 31 regium, Cerion 51: 22 regius, Conus 58: 38; 60: 1 regius cardinalis, Conus 58: 38 regius, Murex 45: 77, 79; 52: 45 regulare, Sphaerium 57: 95 regularis, Calyptraea 39: 9-10 regularis, Conus 46: 110; 52: 45; 57: 4 regularis, Gibberula 58: 100 regularis, Ischnochiton 44: 7; 46: 124 regularis, Marginella 36: 18, 34; 37: 41 regulus, Lora 44: 93 rehderi, Parviturbo 59: 54 Rehderia 60: 108 georgiana 60: 108 Reinia 38: 6 rehsei, Chloritis 50: 53 reinianus, Poecilozonites 38: 7 rema, Calliostoma 47: 145 remiensis,Leuconia 40: 126 remier, Tellina 37: 51 remies, Tellina 37: 51 remingtoni, Physa 44: 106 remota, Eutrochatella 40: 89 remota, Micrarionta 59: 103 -- see also M. indioensis r. repitita, Cerion 38: 60 Repressaxis 53: 11, 16 -- subgenus of Spiraxis reses, Oxystyla, see O. undata r. restorationensis, Paphia 43: 120 retexta, Pyramidula 35: 40 reticularis, Oliva 47: 142; 51: 112; 58: 37 reticularis bollingi, Oliva 47: 142 reticulata, Alvania 38: 26; 51: 123 reticulata. Area 46: 28-9; 49: 116; 58: 56 reticulata, Barbatia 45: 128 reticulata, Cancellaria 37: 55; 39: 85; 54: 5.4; 56: 36; 58: 62 reticulata adelae, Cancellaria 54: 54 reticulata, Cypraea 35: 83; 36: 122; 50: 81; 51: 3; 52: 3, 7; 57: 25, 85 reticulata, Cytheria 60: 57 reticulata, Distrotrix 43: 35 reticulata, Gadina 37: 41; 50: 47 reticulata, Monocondylaea 45: 56 reticulata, Nephronaias 38: 52; 43: 129 reticulata, Oliva 42: 11 reticulata azona, Oliva 42: 11 reticulata evania, Oliva 42: 11 reticulata pallida, Oliva 42: 11 reticulata zigzag, Oliva 42: 11 reticulata, Wanga 57: 21 reticulatum, Deroceras 55: 67-8; 58: 16; 60: 3, 100 reticulatus, Agriolimax 58: 16 reticulatus, Tachyrhynchus 39: 133 retifera, Discolis 48: 129 Retinella 43: 142; 44: 104; 58: 127-8 binneyana 45: 34; 46: 128; 48: 47; 50: 116; 53: 85 binneyana occidentalis 50: 87; 53: 133 burringtoni 49: 100; 52: 95 carolinensis 46: 91; 53: 48, 85; 55: 8 carolinensis wetherbyi 51: 105 cryptomphala solida 54: 19 dalliana 42: 20 electrina 47: 138; 48: 57; 50: 13, 121; 51: 57, 59; 53: 87; 54: 117; 55: 143; 57: 132; 59: 28, 68 hammonis 42: 135; 43: 67, 81, 118, 133; 44: 88; 45: 117; 47: 8; 48: 47; 53: 133 (Glyphyalinia) indentata 43: 123; 47: 79, 138; 48: 56, 58; 50: 121; 51: 57; 53: 47, 87; 54: 31; 57: 132; 58: 110; 59: 28 indentata paucilirata 47: 16-7; 48: 115- 6; 51: 56, 105-6; 55: 8, 97 (Glyphognomon) junaluskana 46: 15, 59, pi. 2 occidentalis, see binneyana o. paucilirata, see indentata p. pentadelphia 46: 58-9 praecox 44: 104; 46: 59; 48: 78, 80 radiatula 44: 17; 53: 63 rhoadsi 52: 95; 53: 47, 87; 59: 124 sculptilis 46: 15, 58; 55: 8 sculptilis subdola 46: 16 solida, see cryptomphala s. subdola, see sculptilis s. virginica 53: 47 wetherbyi, see carolinensis w. wheatleyi 50: 121; 51: 56-7, 59; 53: 85 retreatense, Chondropoma, see C. seri- cinum r. retreatensis, Eutrochatella, see E. nobilis r. retrorsum, Choanopoma 48: 65 retroversa, Limacina (Spiratella) 40: 22; 53: 36 retroversa, Spiratella 47: 55-6 Retusa gouldii 35: 32 harpa 38: 25; 51: 103 luticola 55: 122 pertenuis 35: 32; 40: 22; 51: 126 semen 38: 25; 51: 103 retusa, Mitra 60: 56 retusa, Obovaria 36: 99; 37: 136-7 retusa, Ostrea 40: 82; 50: 88 retusa, Succinea 36: 25; 38: 11; 40: 48, 55; 41: 136; 42: 15, 59, 135; 43: 42, 81, 119; 44: 45, 88; 47: 9, 21; 48: 59; 49: 6; 50: 117; 53: 87; 54: 88-9; 55: 14-5; 58: 78; 59: 92 280 THE NAUTILUS nivalis retusa fultonensls, Succinea 41: 136 retusus, Viviparus 50: 127 reversa, Area (Noetia) 37: 126 revinctum, Chondropoma 38: 58, 61 rex, Helniinthoglypta, see H. tudiculata r. Reynellona natalis 49: 93 reyrei, Systrophia 41: 125 rhabdus, Pterides 37: 98 rhabdus, Spiraxis 53: 50 Rhachis colorata, see mageni c. mageni 51: 35 mageni colorata 51: 35 mageni monozona 51: 35 mageni punctata 51: 35 mageni unicolor 51: 35 monozona, see mageni m. punctata, see mageni p. unicolora, see mageni u. zonulatus 51: 35 Rhachistia (Eorrhachis) histrio 51: 35 Rhinocoryne 56: 26, 29 humboldti 56: 29-30 humboldti lamarckii 56: 30 Rhinomelania 45: 71 -- also as subgenus of Potadoma africana 43: 107 Rhizocheilus madreporarum 36: 122; 55: 2 rhizoporarum, Melanoides 49: 79 rhoadsi, Glyphyalinia 41: 83; 44: 128 rhoadsi, Polita 40: 64 rhoadsi, Retinella 52: 95; 53: 47, 87; 59: 124 rhoadsi, Vitrea 44: 128 Rhodacmaea 58: 14 filosa 58: 14 gu'atkiniana 58: 14 rhodacme 58: 14 rhodacme, Rhodacmaea 58: 14 rhodoceras, Acanthodoris 39: 50, 55, 60, 101-2, pis. 2, 3 rhodope. Rhodopetoma 58: 108 rhombica, Lamellaria 50: 48; 52: 124 rhombicus, Strophitus, see S. edentulus r. and S. rugosus r. rhomboideum, Sphaerium 41: 84; 42: 54, 96. 136; 44: 90; 54: 144; 57: 46, 94; 59: 29 Rhopalocaulis 39: 14, 17; 44: 136 Rhodopetoma 58: 108 rhodope 58: 108 Rhophodon47: 58 Rhysota globosa 46: 105 -- see also lamarckiana g. and sagittifera g. lamarckiana globosa 46: 62, 105 sagittifera globosa 46: 105 Rhytida 45: 142 inaequalis 50: 18 Rhytidopoma 48: 63 nodulatum 40: 90 rugulosum 40: 90 ribeirensis, Veronicella 41: 129 richardsoni, Polygyra 44: 81 richardsoni paucicostata, Polygyra 44: 81 Ricinula 35: 83; 42: 40 acuminata 56: 77 horrida 35: 84 morus 35: 84 ricinus 35: 84 tuberculatus 35: 84 zonata 42: 40 ricinus, Drupa 36: 122; 55: 2 ricinus, Ricinula 35: 84 Rictaxis punctocaelata 36: 34 rictocyma esquimalti, Astarte 38: 24 ridibundus, Unio 51: 48 Ridleya 38: 88 rigida, Atrina 51: 76; 54: 21; 58: 57 riisei, Gastrocopta, see G. servilis r. Rimella 38: 66 Rimetella 38: 66 Rimula aequisculpta 40: 140; 57: 37-9 frenulata 58: 38-40, pi. 7 larva 57: 37-8 longa 57: 38-9, pi. 7 pycnonema 57: 38-9, pi. 7 ringens, Bulimus 60: 57 ringens, Cantharus 37: 123 ringens, Dolium 45: 79; 46: 111 ringens, Malea 37: 124; 43: 137; 52: 45 riochicoensis, Radiodiscus 52: 116 riograndensis', Anodontites 36: 8 riograndensis, Cochliopa 38: 43; 48: 92 riograndensis, Gastrocopta 48: 115 rioplatensis, Anodon 36: 9 riparia, Gastrocopta, see G. procera r. riparia, Helniinthoglypta 43: 74; 45: 21 riquetii, Melanoides 49: 76-8; 50: 18 Rissoa aculeus 56: 59; 58: 137, 139 (Folinia) bermudezi 51: 35-6 krebsi 46: 119 laevissima 46: 1 19 lepida 51: 36 minuta 35: 87 montagui 53: 30 pyrrhacme 37: 33 Rissoella 57: 33 caribaea 57: 33 Rissoina allemani 45: 143 ambigua 36: 122 browniana laevissima 46: 119 dalli 37: 43 kelseyi 37: 43 krebsi 46: 119 laevissima, see browniana 1. miltozona 36: 122 sloaneana 46: 119 stearnsi 36: 122 stricta 52: 46 tridentata 36: 122 rivalis, Aplexa 44: 106 rivalis, Bulla 44: 106 281 Rivalis INDEX TO rivalis, Limnea (Physa) 44: 106 rivalis, Physa 39: 4 rivicola, Sphaerium 35: 109; 40: 29; 43: 93 rivorum, Opisthosiphon 45: 95, 98 Rivularia 56: 124, 128-9 auriculata 56: 129 bicarinata 56: 129 calcarata 56: 129 elongata 56: 129 glandina 56: 129 globosa 56: 129 ibex 56: 129 ovum 56: 129 porcellanea 56: 129 subelliptica 56: 129 rivularis, Ancylus 37: 31; 42: 59 rivularis, Ferrissia 40: 62; 41: 93; 44: 46, 49: 44, 46; 52: 130; 58: 13 rivularis, Mekongia 56: 129 Rivulina 35: 107 rixfordi, Micrarionta 49: 15; 51: 141; 59: 103 rixfordi, Sonorelix 58: 72 roanense, Pleurocera 42: 144 -- see also P. curtum r. robertsi, Brachypodella 48: 139; 49: 58 robertsi, Lamellaxis 49: 25 robertsi, Thaumastus 57: 121 robertsi satipoensis, Thaumastus 57: 121 robinaldinus, Pecten (Chlamys) 50: 57 robusta, Amnicola 47: 9, 11-2 robusta minor, Bithynia 52: 58-9 robusta, Pomatiopsis 45: 133; 47: 1, 9 robusta, Tellina 41: 102 robusta, Terebra 53: 7 robusta, Xenophora 47: 145; 57: 37, pi. 7 robustum, Cardium 37: 53, 55; 39: 83; 43: 35; 54: 21 robustum, Dinocardium 58: 58 robustum vanhyningi, Dinocardium 58: 107 Rochefortia planulata 56: 142 tumida 38: 27 rodecki, Fossaria, see F. obrussa r. roemeri, Holospira 38: 42; 47: 16-7, 79 roemeri, Polita 40: 16 -- see also P. dalliana r. roemeri, Polygyra 40: 16; 45' 129 rogata, Cardium 37: 51 rogersi, Anculotus 35: 10 rogersi, Sonneratia 43: 25, pi. 2 rollsiana, Papuina 49: 89, 91; 50: 53 rondeklipensis, Tudora, see T. mega- cheilos r. roosevelti, Marginella 56: 113 roperi, Fusus 45: 51 roperi. Helix (Triodopsis) 44: 17 roperi, Pisidium 37: 20, 22; 40: 56, 62 roperi, Polygyra 44: 17-8 roperi, Roperia 45: 51 Roperia 45: 51 roperi 45: 51 rosa, Melanella 59: 104 rosa, Melibe 35: 50 rosacea, Acmaea 36: 18 rosacea, Astyris 39: 134 rosacea, Lampsilis, see L. luteola r. and L. siliquoidea r. rosaceum, Musculium 38: 10; 40: 50-1; 42: 54; 57: 93 rosaceus, Conus 41: 43-4 rosaceus, Solen 36: 34, 51; 47: 47 rosea, Euglandina 37: 67; 41: 52; 42: 20; 49: 97; 50: 71 rosea bullata, Euglandina 43: 35 rosea parallela, Euglandina 44: 141; 49: 97 rosea, Fissurella 46: 121 rosea, Lora 38: 25 rosea. Patella 46: 121 rosea, Urocoptis (Bactrocoptis) 49: 57 rosea striata, Urocoptis (Bactrocoptis) 49: 57 roseatus, Liguus 36: 113-4; 38: 61 -- see also L. castaneozonatus r. and L. fasciatus r. rosenbergiana, Ptychotrema 49: 96 rosenbergianus, Colobostylus 56: 3 roseobasis, Drillia 36: 132 roseobasis, Pleurotoma (Drillia) 36: 132 roseolabris, Anoma , see A. splendens r. roseolabrum, Helix, see H. badia r. roseolabrum, Pleurodonte , see P. guadeloupensis r. roseopicta, Glossodoris 49: 61 roseotincta, Pleurotoma (Clathurella) 36: 132 roseum. Helix, see H. os r. roseum, Pisidium 40: 27; 42: 23-4; 52: 81 rosilla, Veronicella 41: 129 Rostellaria occidentalis 44: 1-2 rostrata, Gastrochaena 54: 41 rostrata. Helix 37: 51 rostrata, Pholadidea 43: 51; 56: 42 rostrata, Rangia, see ft. cuneata r. rostratus, Donax 37: 82 rostratus, Septifer 49: 2 rota, Angitrema 41: 57 rota, lo 41: 57 Rotadiscus 40: 106; 41: 144 Rotella 59: 2 carinata 59: 3 gigantea 40: 142 rotula grisea, Ochthephila (Callina) 36: 45 rotunda, Tritonalia, see T. lurida r. rotundata, Ampullaria 41: 64; 51: 95 rotundata, Margarya 56: 128 rotundata, Succinea 38: 79 rotundatum, Pisidium 37: 22; 40: 50. 56; 59: 25 rotundatus, Discus 52: 108; 54; 74; 55; 21 282 THE NAUTILUS Rupellaria roudonyi, Megaustenia 43: 52 rovirosai sanjuanensis, Lanipsilis 36: 36 rowelli, Aninicola 53: 67 rowelli, Cochliopa 48: 92; 53: 67 rowelli. Micrarionta 37: 107: 48: 67-8; 49: 14 rowelli bakerensis, Micrarionta 48: 68 rowelli mexicana, Micrarionta 48: 67 roycei, Phos 51: 90; 58: 36 royi, Turritella, see T. uvasana r. rubella, Acniaea 39: 131 rubella, Helicina 43: 111 rubella, Helix, see H. nemoralis r. rubella, Tellina 60: 57 rubellinus, Unio 37: 60, 99 ruber, Conus 37: 51 ruber, Trachydermon 38: 28; 40: 25 rubescens, Dentalium 52: 139 rubescens, Pseudantalis 52: 139 rubescens, Tellina 37: 129 rubicunda, Helminthoglypta, see H. arrosa r. rubidus. Murex, see M. recurvirostris r. rubiginosa parvula, Fusconaia 36: 19 rubiginosa, Goniobasis 48: 95 rubiginosa, Quadrula 36: 48; 41: 92; 44: 89 rubra, Alcyna 36: 121 rubra multicolor, Alcyna 36: 121 rubra, Barleeia 35: 85 rubra, Lasea 36: 18; 37: 41 rubra, Polygyra, see P. multilineata r. rubra, Poteria, see P. seminuda r. rubra, Velutina 59: 103 rubricata, Tellina 53: 79 rubroflammulatum, Tegula 52: 46 rubro-lineatum, Cerithium 56: 28 rubrotincta, Leptoplax 58: 100 rubrum, Helix, see Helix os r. rucifex, Achatina 40: 102 rucifex, Bulimus 40: 102 rudens, Goniobasis, see G. silicula r. rudentis, Helisoma, see H. campanulata r. rudentis, Planorbis, see P. campanulatus r. ruderata. Gonyodiscus 41: 42 ruderata. Helix 45: 85 ruderata, Paphia, see P. staminea r. ruderata cronkhitei viridula, Patula 48: 71 rudis, Latirus 52: 45 rudis. Littorina 35: 98; 38: 26, 50; 39: 39, 133; 43: 65; 46: 106; 56: 58, 106 rudis tenebrosa, Littorina 38: 50 rudisplanusque, Poteria 48: 86 rudis. Tridacna 35: 61 Ruditapes -- subgenus of Paphia rufa, Alcadia 54: 71 rufa. Arion, see A. ater r. rufa. Cassis 41: 72 rufa, Melania 45: 42 rufa alba, Pupinella 45: 29 rufa, Simnia 37: 124 rufescens, Haliotis 43: 109-10; 50: 49; 54: 74; 60: 91-2 rufescens hattorii, Haliotis 54: 74 rufescens, Helix 51: 137 rufescens, Melania 45: 42 rufibranchialis, Coryphella 49: 65 ruficincta, Micrarionta 42: 100; 44: 86 rufilabre, Choanopoma, see C. solidum r. rufilabris, Anoma, see A. nigrescens r. rufipes, Aclastus 39: 45 rufofuscus, Unio 47: 74 rufogaster. Helix 59: 120 rufula, Hyalosagda 49: 52 rufum, Campeloma 40: 51; 43: 42; 44: 127, 130; 49: 69; 54: 13, 15-6; 59: 110, 112 rufum geniculiforme, Campeloma 52: 130 rufus, Arion 35: 78 rufus, Limax 35: 78, 80; 50: 132 rufus, Murex 37: 55; 51: 89; 58: 39 Ruganodontites 45: 2, 16-7 -- subgenus of Anodontites rugatum, Bittium 53: 22 rugeli, Mesodon 54: 19 rugeli, Mesomphix 35: 43; 45: 138 rugeli, Polygyra 35: 42; 41: 142; 46: 58-9, 91; 48: 79-80, 82; 51: 105; 52: 92 rugeli, Urocoptis 40: 91 rugifera, Pseudopythina 43: 50 rugoderma, Anguispira 51: 131 rugosa chapini, Achatina 48: 34 rugosa. Bursa 37: 124 rugosa, Columbella 45: 74, 76 rugosa, Crepidula 36: 34 rugosa, Ellipstoma 43: 2 rugosa, Fissurella 52: 45 rugosa, Melania 36: 119 rugosa. Pinna 46: 75; 52: 45 rugosa, Pirostoma 44: 71 rugosa, Polygyra, see P. tridentata r. rugosa, Saxicava 36: 18 rugosa, Tegula 47: 47 rugosa, Tellina 37: 3 rugosa, Triodopsis, see T. tridentata r. rugosa anteridon, Triodopsis 58: 127 rugosissima, Xestina 50: 30 rugosum, Sphaerium, see S. striatinum r. rugosus, Strophitus 39: 93; 40: 66; 42: 51; 44: 47, 89, 130; 59: 110 rugosus pavonius, Strophitus 42: 52 rugosus rhombicus, Strophitus 40: 50; 42: 51 rugosus, Unio 51: 93 rugulata, Lora 40: 21 rugulosum, Rhytidopoma 40: 90 ruidosensis, Gastrocopta, see G. armi- fera r. Rumina decollata 37: 33; 38: 61; 41: 139- 40; 52: 33, 97; 53: 105; 54: 69 Rupellaria 54: 40 -- also as subgenus of Petricola typica 54: 40; 58: 58 283 Rumphi INDEX TO rumphi, Oliva, see O. oliva r. rupestris, Eutrochatella 40: 89 rupestris, Pyramidula 50: 18 rupicola, Gastrocopta 37: 33, 65-9; 42: 20 rupicola marginalba, Gastrocopta 38: 7 rupicula, Scalaria 60: 71 rupis, Tudora 37: 93; 39: 43 rupis-fontis, Poteria 48: 87 ruschenbergiana, Megaspira 59: 67 rushii, Partula, see P. radiolata r. rusiQstoma, Mekongia 56: 129 russatus, Pecten 49: 28 russelli, Liguus, see L. flamellus r. rustica, Fossaria, see F. modicella r. rustica, Lymnaea 47: 9 rustica, Patella 37: 51 rusticana, Succinea 48: 47 rusticana alaskana, Succinea 53: 64 rusticuluni, Buccinum 37: 51 rutherfordi, Polygyra 44: 33 ruthveni, Lampsilis 36: 36 ruthveni, Leiostracus 53: 28 rutilans, Unio 37: 103 ryckholti, Musculium 37: 78; 40: 29-30, 62 ryckholti raymondi, Musculium 48: 48 rykoltii, Musculium 37: 97 Ryssota (Lamarckiella) inflatula 46: 105 (Lamarckiella) oweniana 46: 105 (Lamarckiella) oweniana smithi 46: 105 Sabella 60: 26 saccharimeta, Cerion 38: 60 -- see also C. incanum s. saccharinoidea. Patella 37: 51 Sacculosiphonaria 59: 108 Sacculus okai 41: 72 sacrata hyporhyssa, Cerithidea 56: 27 sacratum, Cerithium 56: 27 sacratum, Cerithium (Potamis) 56: 27 Sagda 44: 68-9; 48: 136-8; 49: 54; 54: 61 adamsiana 48: 138; 49: 53 alligans 48: 139 anodon 49: 53 bondi 49: 98, pi. 7 catadupae, see connectans c. (Parahelix) connectans 48: 138; 49: 53 (Parahelix) connectans catadupae 48: 138, pi. 9; 49: 53 cookiana 48: 136, 138; 49: 54 (Parahelix) epistylioides 48: 138-9; 49: 53 foremaniana 49: 54 grandis 49: 53, 98 jacobensis, see maxima j. jayana 48: 136, 138; 49: 53 kingswoodi 48: 137-8, pi. 9; 49: 54 maxima 48: 138; 49: 54, 98 (Parahelix) maxima jacobensis 48: 139, pi. 9: 49: 54 montegoensis 48: 138; 49: 53 (Parahelix) occidentalis 48: 138, pi. 9; 49: 53 portlandensis, see spei p. (Parahelix) spei 48: 139; 49: 53 (Parahelix) spei portlandensis 48: 139, pi. 9; .49: 53 torrefacta 48: 139 triptycha 49: 54 sagebieni, Chondropoma 40: 89 sagemon, Pleurodonte 42: 78, 80 sagittatus. Modiolus (Amygdalum) 48: 127, pi. 7 -- see also M. pictus s. and M. politus s. sagittifera globosa, Rhysota 46: 105 sagraianum, Cerion 40: 74 sagriana. Helix 40: 90 St. Johnensis, Cardita, see C. borealis S. St. Johnensis, Chiton, see C. marmoreus S. St. Johnensis, Trichotropis, see T. borealis S. sajensis, Elliptio 41: 139, pi. 2 Salasiella 40: 64; 49: 98; 54: 80-2, 131; 55: 24, 52-3, 55, 57 elegans 55: 57 joaquinae 54: 80, 82-3, pi. 6 (Perpusilla) minima 54: 83, pi. 6 (Perpusilla) modesta 54: 81-2, pi. 6 (Perpusilla) perpusilla 54: 81-2, 84, pi. 6 pulchella 54: 83 salifana, Partula 39: 19 salina, Physa 44: 106 Salinator 45: 106; 58: 113-4 salleanum, Aperostoma 40: 63 salleanus, Murex (Chicoreus) 39: 85 salleanus, Xanthonyx 56: 40 sallei, Ancylus 37: 14, 16 salmacidum, Cerithium 56: 21 salmonea, Margarites (Pupillaria) 50: 49-50 salmonea, Psephidia 37: 41 salmonea, Psephis 58: 99 salmonea, Tellina 43: 50 salmoneus, Anodontites, see A. crispatus s. salmonensis. Helix 37: 134-5 salmonensis, Polygyra (Tridopsis) 37: 134 salsa, Hydrobia 56: 141 salvatori, Cerion 40: 38, 74-5, 89 salvatoris, Cepolis (Plagioptycha) 52: 144 salvatoris, Cepolis, see C. duclosiana s. salvini, Strobilops 35: 91 samanicum, Dentalium 40:. 19-20 samar, Strombus 36: 123 Samarangia 55: 74 quadrangularis 55: 73, pi. 6 samba, Strombus 60: 102 samoanensis, Teredo 38: 144 sana, Polygyra (Triodopsis) 46: 88, pi. 7 sanagaensis, Lanistes 43: 107 sanctabarbarae, Brachypodella, see B. raveni s. 284 THE NAUTILUS Scaber sanctaecrucis, Helniinthoglypta, see H. ayresiana s. sanctaemariae, Lymnaea, see L. stagnalis s. sancta georgiensis, Helix 38: 4-5 sanctageorgiensis, Mesodon, see M. appressus s. sanctijohannis, Amnicola 58: 6 sanctorum johanium, EUiptio 47: 95 sanctorumjohanium, Unio (EUiptio) 47: 17, pi. 1 Sandahlia 36: 63 sandai okanoi, Euhadra 41: 64 sandersoni, Discus 55: 21 sandersoni, Gonyodiscus 44: 33 sandwichensis, Daphnella 36: 122 sandwichensis, Erato 36: 122 sandwichensis, Lasmodonta 37: 3 sandwichensis, Oliva 36: 122; 48: 70 sandwichensis. Trochus 36: 123; 37: 3; 55: 2 sangabrielis, Helminthoglypta, see H. petricola s. sanguinea, Ostrea 37: 51 sanguinea, Trivia 37: 125 sanguinea, Urocoptis 49: 57 sanguinea cerina, Urocoptis 49: 57 sanguineus. Trochus 53: 34 sanguinisuga, Turricula 60: 56 Sanguinolaria bertini 49: 140 hanleyi 37: 129 operculata 60: 19 sanguinolenta 51: 113 tellenoides 52: 46 sanguinolenta. Oliva 42: 11 sanguinolenta, Sanguinolaria 51: 113 sanguinolentus. Cantharus 52: 44 sanguinolentus, Pecten 50: 57 sanibelense, Cyclostrema 53; 53, pi. 8; 59: 58 -- see also C. inter ruptum s. sanibelensis, Succinea 47: 20-1, pi. 3 sanjuanense, Epitonium (Nodiscala) 45: 114-5 sanjuanensis, Alvania 53: 31 sanjuanensis, Barleiea 51: 104 sanjuanensis, Lampsilis, see L. roviro- sai s. sanjuanensis. Odostomia (Amaura) 38: 26; 51; 102 sanmarcosensis, Bulimulus 46: 49 santacruzensis, Bulimulus 46: 109 santacruzensis, Gyraulus 48: 34 santarosana, Murex 55: 141 santarosana, Rectiplanes 58: 108 santesoni, Cerion 38: 60 Sanvagesia 36; 67 sapotalensis. Nephronaias 35: 25 sapotilla. Yoldia 40; 23 Sarasinula 39: 15, 17; 44; 135-6 -- also as subgenus of Vaginulus plebeja 39; 15; 44; 134 sarda. Chama 51: 74; 56: 117, 119. 123, pi. 14 sardea, Alvania 53: 30 sargeanti, Turritella 41: 36 satipoensis, Thaumastus, see T. robertsi s. satura, Lampsilis, see L. ovata s. saturata, Oliva, see O. erythrostoma s. saturus, Chrysodomus 50: 102; 57: 142 sauciata, Ostrea 38: 118 saulcyanus, Ancylus 37: 12, 16 saulcydianus, Drillia 60: 61 savesi, Placostylus 42: 74 savlamari, Brachypodella, see B. costulata s, saxatile, Littorina 59: 97 saxatilis, Euglandina 55: pi. 5 saxatilis, Euglandina (Proameria) 55: 54, 56-8, 60 saxatilis, convallis, Euglandina (Proameria) 55: 56, 58, 60, pi. 5 saxatilis, Helix 41: 125 saxatilis, Littorina 46: 106; 54: 2, 4; 56: 58, 143; 58; 20-1, 137-41 Saxicava 40; 43; 54; 4-5 arctica 35; 32; 36: 107; 38: 25; 40: 25, 43; 43; 50; 44: 92; 47; 102; 51: 9; 52: 46; 54; 2-4; 56; 61, 140; 58: 59 pholadis 38: 25; 43; 50; 56: 42 rugosa 36: 18 saxicola, Entodesma 47: 102; 4^; 19; 56; 42 saxicola, Lyonsia 43: 51 Saxidomus brevis, see giganteus b. brevisiphonatus 37: 26 giganteus 38: 24; 43: 50; 44: 92; 47: 102; 53: 108 giganteus brevis 43: 50 nuttallii 44: 92 saxosus, Turbo (Callopoma) 37: 126 sayana, Oliva 35; 135; 36: 11; 37: 53, 55; 51: 112; 54: 33, pi. 1; 55: 66; 58: 62 sayana, Polygyra 39; 80; 46: 103; 48: 57; 53: 86 sayanus, Mesodon 58: 127; 59; 28 Sayella 48: 130; 53: 43-4 chesapeakea 53; 44 crosseana 53; 44-5 fusca 53: 44 hemphilli 48: 130; 53: 44 livida 48; 129, pi. 7; 53: 44 producta 53: 44 watlingsi 53: 45 winkleyi 53: 44 sayi, Helisoma, see H. anceps s. sayi crassa, Physa 57: 8 sayi warreniana, Physa 38: 105-6; 41: 20 sayi, Tellina 49: 119 sayii, Physa 36: 25; 40; 50-1; 48: 59; 49: 31; 55: 66 sayii oneida, Physa 48: 59 sayii, Physella 42: 134; 44; 46; 59: 29 sayii. Strombus 43: 10 scaber. Chiton 48: 89 285 Scabra INDEX TO scabra, Acmaea 37: 43; 47: 53; 50: 49; 53: 22; 58: 93 scabra, Lima 38: 61 scabra, Littorina 38: 3; 52: 118; 56: 55 scabra, Melanoides 50: 11 scabra, Nuttallina 48: 89 scabricosta, Nerita 56: 34 scabricosta ornata, Nerita 46: 45 scabricostatus, Ischnochiton 58: 101 scabriculum amabile, Choanopoma 48: 64 scabriuscula, Erato 37: 125 Scala 52: 34 australis 51: 6 bicarinata 51: 7 hindsii 45: 70; 55: 46 (Sthenorhytis) mazyckii 45: 9 mitchelli 36: 143 varicosa 51: 7 Scalaria borealis 51: 4 clathrus 51: 49 diadema 40: 142 gouldi 51: 5 hindsii 45: 31, 71 lineata 41: 15; 51: 49 multistriata 51: 49 pleurocostata 51: 6 rupicula 60: 71 subcoronata 55: 46 tincta 55: 46 scalariforniis, Cerithidea 37: 54; 56: 21-2, 24, 28 scalariforniis, Pirena 56: 22 scalariforniis, Trophon 35: 87; 39: 134 scalarina, Fasciolaria 50: 21 scalarina niacgintyi, Fasciolaria 49: 139; 50: 21 scalarina, Urocoptis 40: 91; 42: 141; 45: 88 scalarina portuondi, Urocoptis 45: 88, 98 scalaris, Acmella 40: 134 scalaris, Assiniinea 53: 68; 54: 120-1 scalaris, Bela 35: 32 scalaris, Helisoma (Pierosonia) 44: 34; 58: 32 scalaris, Isidora (Anierianna) 44: 34 scalaris ecarinata, Lora 40: 21 scalaris, Physa 41: 52 scalaris, Poniatiopsis 40: 120; 44: 22, 38-9; 53: 96 Scalatella -- subgenus of Geonielania Scalez 39: 111 petrolia 38: 66; 37: 109-10; 40: 12-6, 69 Scalpellum 40: 142 gabbi 40: 142 scansorius, Conus 37: 51 scapha. Area 37: 51 scapha, Voluta 55: pi. 7 scaphaciuncula, Area 37: 51 Scaphander punctostriatus 40: 22 Scapharca -- subgenus of Area Scaphella 55: 78; 60: 108 (Aurinia) atlantis 60: 108 (Aurinia) cuba 60: 108 junonia 35: 135; 60: 108 (Aurinia) kieneri 60: 108 Scaphis 51: 87-8 scaphoides, Adrana 53: 17, pi. 6 Scarabus labrosus 60: 59, 106 schadei, Anodontites 48: 34 Schasicheila 40: 35-6, 63; 42: 36 alata 42: 36 misantlensis 42: 36 schefferi, Liocyma 52: 111, pi. 8; 57: 142 schideanus, Bulimulus, see B. dealbatus s. schivelyae, Veronicella 48: 88 -- see also V. laevis s. Schizoglossa 45: 142; 54: 134 Schizopyga -- also as subgenus of Nassarius mendica 38: 25 Schizopyle 53: 27 Schizostoma 38: 67 Schizothaerus 38: 98 bighopensis, see nuttallii b. capax, see nuttallii c. maxima, see nuttallii m. nuttallii 38: 102; 43: 50; 44: 92; 45: 32; 56: 42 nuttallii bighopensis 45: 33 nuttallii capax 40: 78; 44: 69; 45: 32-3 nuttallii maxima 40: 78; 44: 69; 45: 32-3 Schistoloma 54: 119 Schloenbachia propinqua 43: 26 templetoni 43: 23, 25, pi. 2 schmackeri, Hua 57:' 21 schmeltziana, Nanina 50: 70 schmitti, Aurinia 60: 108 schneideri, Valiguna 42: 47 Scholvienia -- subgenus of Thaumastus schoolcraitensis, Quadrula, see Q. pustulosa s. schrammi, Loripinus 51: 65; 58: 58 Schranimia 41: 22 schrenckii. Helix 41. 43 schrenckii, Theba 41: 43 schroeteriana, Pleurodonte, see P. tridentata s. schrokingeri, Amnicola 36: 20 schumoi, Climacia 59: 77, 79 schumoi, Pachychilus 44: 84, pi. 7 schwabi, Egeria 43: 107 schwengelae, Leiostraca 52: 34 Scissilabra 55: 121 scissimargo, Cyclophorus 55: 41 scissimargo, Lagochilus 55: 43 Scissula 56: 79 -- subgenus of Tellina scissurata, Yoldia 60: 91 Scissurella proxima 40: 141 scitula, Eutrochatella 48: 10. -- see also E. pulchella s. 286 THE NAUTILUS Semilimax Sclerochiton miles 58: 102 scobinata, Anomia 37: 51 scobinata, Tellina 60: 57 scobinata, Urocoptis 55: 104 scobinata perfecta, Urocoptis 55: 104 Scolodonta 38: 87; 41: 127 (Systrophiella) eudiscus 38: 86-7 interrupta 41: 127 seniperi 41 : 127 scolymus, Turbinella 39: 85 Sconsia striata 60: 1 scopulorum, Chondropoma, see C. shuttle- worthi s. scopulorum, Neosubulina 58: 86 Scopulospica 55: 70 scortuni, Donax 37: 51 scrobilator, Murex 37: 51 scropulus, Melania 49: 76 scrotum, Donax 37: 51 scrupea, Wanga 57: 21 scrupea debilis, Wanga 57: 21 sculpta, Cerion 38: 60 sculpta, Melania 57: 20 sculpta, Sermyla 57: 20 Sculptaria 37: 107; 55:63 sculptilis, Glyphyalinia 42: 92 sculptilis, Retinella 46: 15, 58; 55: 8 sculptilis subdola, Retinella 46: 16 sculptilis, Vitrea 35: 43 sculptum. Caecum 57: 32 sculptum, Opisthosiphon 45: 94 sculptum, Sphaerium, see S. sulcatum s. sculpturata, Ostrea 59: 40 scurra, Cypraea 50: 81; 51: 3; 52: 104-5; 55: 2; 57: 83-5; 58: 107, 132 Scurria funiculata 45: 24 -- see also mitra f. mitra 45: 24 mitra funiculata 45: 24 mitra tenuisculpta 45: 25 tenuisculpta, see mitra t. scutala, Pila 49: 79 Scutalus 41: 95-6; 53: 112-3 -- subgenus of Bulimulus scutellatum, Pisidium 38: 10; 40: 50, 56; 42: 25, 27, 54; 52: 82; 59: 26 scutulata, Littorina (Melarhaphe) 36: 34; 37: 42; 38: 26; 50: 48; 53: 22 scutulum, Crucibulum 52: 45 scutum. Acmaea 36: 71; 37: 4: 38: 27; 47: 102; 50: 48 scutum cribraria, Acmaea 51: 124 scutum patina, Acmaea 47: 102 scutum pintadina, Acmaea 47: 102 Searlesia dira 38: 25; 50: 47 secernenda, Bellamya 56: 126 sechurana, Chione 49: 17, pi. 1 sechurana, Entodesma 49: pi. 1 sechurana, Entodesma (Agriodesma) 49: 18 secticostata, Area 49: 133-4; 58: 56 secticostata. Area (Scapharca) 39: 82 securis, Musculium 37: 30; 39: 124; 40: 50-1; 43: 119; 54: 144; 57: 46, 93 securis, Plagiola 36: 99 secutor, Conus 41: 44-5 seemani, Bythinella 59: 19 seemani, Durangonella 59: 18-20, pi. 3 seemanni, Hydrobia 48: 91; 59: 18-9 seemanni, Paludestrina 38: 43 Segmentina 49: 104; 53: 106; 54: 33 armigera 37: 30; 38: 11; 40: 61; 42: 133 christyi 38: 11; 40: 61; 43: 84 crassilabris 39: 127; 40: 61; 41: 92; 43: 84 obstructa 39: 12 Sella adamsii 56: 141; 58: 61 attenuata 48: 4 selenina, Thysanophora 37: 33, 68 Sella montereyensis 37: 42 sellersiana, Melania 36: 119 Semele bellastriata 49: 119; 58: 59 corrugata 37: 129 flavescens 47: 47; 52: 46 guaymasensis 47: 47 lenticularis 37: 129 pacifica 37: 41 proficua 39: 84; 54: 21; 58: 59 proxima 37; 129 pulchra 36: 33 purpurascens 39: 84 seimplicissima 52: 46 semen, Retusa 38: 25; 51: 103 semialba, Monadenia 42: 80-1; 51: 63-5; 53: 108 -- see also M. fidelis s. semiaurita, Pedalion 49: 117 Semibittium -- subgenus of Bittium semicanus, Annularia 40: 88 semicarinata, Goniobasis 35: 2; 38: 130; 132; 41: 61 semicarinata, Melania 51: 92-3 Semicassis 41: 72; 52: 68, 73, 75 abbreviata, see gibba a. centiquadrata 52: 73 cicatricosa 52: 75-6, pi. 5 cicatricosa peristephes 52: 76-7, pi. 5 gibba 52: 74-7. pi. 5; 54: 20; 58: 61 gibba abbreviata 52: 74, pi. 5 gibba inflata 52: 75 inflata, see gibba i. peristephes, see cicatricosa p. semigranosa, Tegula53: 38 semigranosum. Cassis 41: 72 semiinflata, Pseudomelatoma 52: 21-2 semiinflata redondoensis, Pseudomelatoma 52: 21-2; 57: 115-6 semilaevis. Chiton 58: 101 Semilimacella 42: 138-9 Semilimax 42: 138-9 semilimax, Helix 42: 138 semilimax, Vitrina 42: 138-9 287 Semiliratus INDEX TO semiliratus, Dendrochiton 49: 42-3 seminalis, Fluminicola 53: 125, 137 seminole, Helisoma, see H. duryi s. seminolensis, Latirus, see L. tessella- tus s. Seminolina 54: 17 seminuda, Brachypodella (Geoscala) 49: 58 seminuda, Odostomia 58: 60 seminuda, Pinna 37: 55; 43: 35 seminuda, Poteria 48: 66, 86 seminuda rubra, Poteria 48: 86 semiplicata, Pyramidula 35: 40 semiplota, Cypraea 36: 122; 50: 51-2, 81; 55: 2; 57: 22, 27 semiplota, Staphylea 57: 26 semipolitum, Dentalium 52: 42 semistriata, Atys 52: 117-20 semistriata fordinsulae, Atys 52: 120 semistriata mua, Atys 52: 120 semistriata, Olivella 37: 123 semistriata, Teinostoma 59: 2 semisulcata, Sigatica 53: 111, pi. 12 semisulcata holograpta, Sigatica 53: 110, pi, 12 Semisulcospira 49: 78 semitarum, Laevaricella 55: 26 semitectus, Limax (Megapelta) 35: 79 semitorta. Area 45: 104 Semperella 51: 88 semperf luens , Pleurodonte, see P. acuta s. and P. fuscolabris s. semperi, Scolodonta 41: 127 Semperula 39: 15, 18; 42: 44. 47 Senilauria 41: 108 senticosum, Cardium 37: 128 sentis, Pecten (Chlamys) 38: 118; 56: 110 separanda, Parviterebra 37: 106 Sepia 44: 107; 60: 26 argonautaea 37: 46 Septaria 50: 109-10, 112-3; 53: 36 septemspiralis maculata, Pomatias 44: 71 septemstriatum, Cerithium 51: 92; 56: 22, 29 septemstriatum degeneratum, Cerithium (Pyrazus) 56: 23 septemstriatum, Cerithium, see C. minimum s. septemvolva. Helix 49: 102; 52: 23-4 septemvolva, Polygyra 38: 61; 41: 52; 49: 103; 52: 23 septemvolva volvoxis, Polygyra 37: 69 septentrionalis, Glycymeris 53: 22 Septifer 47: 38; 56: 31-2 bifurcatus 37: 41; 56: 31, 43 rostratus 49: 2 sepulchralis, Bulimulus 38: 58, 60 sequoia. Helminthoglypta 41: 78. 81; 42: pi. 1 -- see also H. tuJarensis s. sequoicola. Helminthoglypta 41: 82; 51: 35; 54: 125 Sericea -- subgenus of Helicina sericea, Astarte, see A. borealis s. sericea, Helicina (Sericea) 57: 47 sericea, Oliva 42: 7 -- see also O. tremulina s. sericinum, Chondropoma (Parachondrella) 48: 61 sericinum retreatense, Chondropoma 48: 66, pi. 2 sericinum retreatense, Chondropoma (Parachondrella) 48: 61 Sermyla 57: 20 kowloonensis 57: 20, pi. 6 sculpta 57: 20 serpens, Choneplax 58: 102 Serpula decussata 46: 119 Serpulorbis squamigerus 37: 125 serradifalci, Lobiger 55: 39-40 serrata, Anachis 58: 100 serrata, Atrina 54: 21; 58: 57 serrata, Limnea 49: 129 serrata, Stagnicola, see emarginata s. serratum, Cardium 50: 30 serratum, Cardium (Laevicardium) 39: 83 serratum laevigatum, Cardium (Laevicard- ium) 39: 83 serratum, Laevicardium 49: 118; 54: 21 serratum, Liocardium 37: 55 serratus, Hipponyx 50: 48, 50 serricatus, Cryptodon 58: 99 Serripes groenlandicus 38: 24; 40: 25; 46: 125; 47: 102; 54: 2 sertum, Jopas 36: 122; 60: 56 sertum, Nassa 55: 2 servilis, Gastrocopta 39: 78 servilis oblonga, Gastrocopta 39: 78 servilis riisei, Gastrocopta, 39: 78 setacea, Bankia 38: 25; 43: 51 Setidiscus 41: 144; 54: 57 setifer, Phytia 51: 124 Setipellis 52: 143; 56: 82-4, 89-90 stigmatica 52: 143; 56: 82, 89, pi. 10 setosa, Melania 49: 62, 73-4, 77-9 setosa, Philobrya 36: 18; 37: 41 severinus, Colus 60: 93 sexdentatus, Bulimus 60: 57 sexfilaris, Lagochilus 55: 42-3, pi. 3 seychellana, Physa 43: 92 seychellensis, Vaginula 39: 14 seychellensis, Vanigula 44: 137 shaefferiana, Anodonta 39: 93 shanensis, Ekadanta 53: 68 shanensis, Ekadonta 54: 120-1 sharoni, Lamellaria 52: 123, pi. 9; 59: 104 shastaensis, Goniobasis 48: 131-2, 134 -- see also G. silicula s. shattucki, Drymaeus 47: 115 shavi. Ampelita 56: 49 shellensis, Helisoma, see H. antrosa s. shepardi, Polita 37: 132 shepardi Vitrea 43: 113-4 shepardi, Zonites 43: 123 288 THE NAUTILUS Simplicervix shepardianuni, Diplopoma 48: 63 shimeki cockerelli, Gonyodiscus 37: 79; 38: 65; 42: 125 shimekii, Discus 48: 71 shiniekii cockerelli, Discus 48: 71 shimekii, Gonyodiscus 40: 117; 41: 134 showalteri, Goniobasis 38: 67; 41: 58 showalteri, Gyrotoma 38: 67 showalteri, Lepyrium 58: 48 showalteri, Neritina 35: 136 showalterii, Anculosa 58: 42 showalterii, Lithasia 41: 58 showalterii, Melania 58: 46 showalterii, Pleurocera 58: 43 shuttleworthi, Chondroponia 40: 89 shuttleworthi scopulorum, Chondropoma 40: 89 shuttleworthi, Streptostyla 55: 60 Shuttleworthia 55: 52, 55, 59 -- subgenus of Pittieria shuttleworthianus, Callistochiton 46: 123; 57: 32 siamense, Cryptosoma 43: 52 siamense albescens, Megaustenia 43: 53 siamense virescens, Megaustenia 43: 53 siamensis, Megaustenia 43: 52-3 sibirica, Fossaria, see F. truncatula s. sibirica. Helix 41: 43 sibirica, Hygromia 41: 42 sibirica, Valvata 52: 58 sibiricum, Pisidium 52: 57, 81 sibiricus, Ancylus 41: 41 sibyllae, Pecten 49: 28 sicarius, Solen 44: 92 siculoides. Chiton 58: 101 sidelia, Oliva 42: 12 sidelia lepida, Oliva 42: 12 sidelia todosina, Oliva 42: 12 sidelia volvariodes, Oliva 42: 12 siegfusi, Fluminicola 48: 16 sierrana, Polygyra 35: 36, 39, pi. 2 sieversi, Caspicyclotus 50: 9 Sigaretus 45: 77; 51: 92 maculatus 51: 49, 92 perspectivus 37: 56; 41: 14; 51: 49, 92 Sigatica holograpta. see semisulcata h, seniisulcata 53: 111, pi. 12 semisulcata holograpta 53: 110, pi. 12 Sigmataxis 49: 22; 55: 25, 28, 52 -- also as subgenus of Varicella and Veronicella laeviusculus 55: 25, 28, pi. 1 procerus 55: 29 signae, Conus 51: 3 signata, Cyphoma 53: 3, pi. 1 siliceus, Planorbis 43: 138 silicula, Goniobasis 41: 75; 42: 64; 48: 94. 96 -- see also G, plicifera s. silicula bairdiana, Goniobasis 48: 94, 96 silicula rudens, Goniobasis 48: 94 silicula shastaensis, Goniobasis 48: 94-5, 97 Siliqua 38: 51 costata 35: 32; 56: 61, 142; 58: 137, 140; 59: 97 nuttallii, see patula n. patula 39: 108; 47: 102 patula nuttallii 43: 50 siliqua, Cyrtodaria 40: 25; 56: 61 siliquoidea, Lampsilis 36: 101; 37: 141; 39: 112-3; 40: 9, 67; 41: 20; 42: 53, 115; 44: 130; 47: 9; 49: 81; 58: 79; 59: 110 siliquoidea rosacea, Lampsilis 40: 50; 42: 52-3, 96, 115, 136; 44: 47 siliquosa, Mycetopoda 36: 8; 53: 54 sillimani, Succinea 48: 33 Simla, Helix 35: 103 similans, Helminthoglypta 51: 13-4, pi. 1 similaris hongkongiensis, Bradybaena 53: 105 similaris, Eulota 37: 3, 33; 38: 80, 82; 40: 134 similaris unicolor, Eulota 38: 82 similaris zonulata, Eulota 38: 82 similaris, Gyraulus 50: 14, 32 similaris, Partula 50: 53 similaris, Planorbis (Gyraulus) 37: 79; 40: 76, 122; 41: 53; 48: 48 similaris, Spiraxis (Mirardula) 53: 10, 12-3, 93, pi. 4 similaris. Varicella 49: 22, 26; 55: 27 similaris sloaneana. Varicella 49: 26 simile, Sphaerium 40: 50; 42: 53; 44: 90 similis, Anachis, see A. avara s. similis, Columbella, see C. avara s, similis, Hyalosagda 48: 136; 49: 53 similis ambigua, Hyalosagda 49: 53 similis, Mactra 51: 65 similis, Pseudamnicola 35: 39 similis, Spisula, see S. solidissima s. similis, Varicella 55: 26 simillimus. Discus 55: 21 Simnia 53: 4; 56: 109 acicularis 58: 38 aequae 57: 5 intermedia 53: 1-2 purpurea 40. 17 quailii 57: 5 rufa 37: 124 uniplicata 58: 61 simplex, Ammonocerina 40: 134 simplex, Ancylastrum 35: 7 simplex, Anomia 35: 31; 37: 55; 38: 49; 39: 39, 83; 49: 117; 54: 21; 56: 141; 57: 67; 58: 57 simplex, Goniobasis 35: 3; 41: 61 simplex, Hyalosagda 48: 135; 49: 53 simplex, Pisidium, see P. punctatum s. simplex, Trypanostoma 43: 10 simplex, Unio 37: 56 simplex, Valvata 35: 24; 46: 19-22 -- see also V. tricarinata s. Simplicervix -- subgenus of Brachypodella 289 Simplicilabris INDEX TO simplicilabris, Haplotrema 44: 67 simplicissima, Semele 52: 46 Simplisiphonaria 59: 108 simpsoni, Lampsilis 40: 4 si.npsoni, Pleurobema 36: 83 Simpsoniconcha ambigua 36: 98 simpularis, Margaritana 36: 43 simpularis, Parreysia 36: 43 simpularis, Unio 36: 43 Simpulopsis 54: 62 portoricensis 54: 61 simson, Pleurodonte, see P. invalida s. simulans. Helix 49: 25 simus, Unio 37: 102 sincera, Hyalosagda 48: 137; 49: 52 sincera diminuta, Hyalosagda 49: 52 sincera, Valvata 41: 137; 44: 108, 120; 46: 20; 50: 114-5; 52: 30; 58: 78; 59: 29 sincera nylanderi, Valvata 42: 54; 44: 30, 120 sinclairi, Grangerella 50: 128 sinensis, Cerithium 60: 55 singaporinus, Pecten 50: 27 Singleya 55: 52, 54 -- subgenus of Euglandina singleyana, Euglandina 38: 38, 42; 39: 12; 47: 79; 55: 52, 54 singleyana, Pseudohyalina 38: 42; 40: 17 singleyana, Pseudovitrea 42: 21, 66 singleyana, Zonitoides 37: 67, 69 singleyanus, Helicodiscus 47: 16-7; 48: 115; 56: 55-6 singleyanus inermis, Helicodiscus (Hebe- todiscus) 42: 86-7; 48: 106; 53: 47 singleyanus, Zonites 42: 87 singleyi, Eupera 40: 30; 41: 54; 58: 50 singleyi, Pisidium 58: 52 sinistra, Pupilla, see P. muscorum s. sinistra, Urocoptis 42: pi. 1 sinistrorsum, Cochlicopa, see C. lubrica s. sinomarinus, Pecten 50: 27 sinopae, Unio 50: 128 sinuata, Anoma 49: 21 sinuata, Dentellaria 44: 138 sinuata, Fasciolaria 40: 144 sinuata. Helix 44: 138 sinuata, Philine 40: 22 sinuata, Placiphorella 58: 102 sinuata, Pleurodonte 49: 56 sinuata, Mopalia 38: 28 sinuatum, Buccinum 57: 115 sinudentatus, Ischnochiton 58: 101 Sinum 37: 126 concavum 37: 126 debilis 37: 126 maculatum 58: 60 perspectivum 37: 126; 39: 86; 49: 137; 54: 20; 58: 60 planulatum 37: 108 polandi 49: 136-7, 139 sinuosa, Chama 51: 74, 76-7; 56: 118, 121, 123, pi. 13 sinuosa bermudensis, Chama 51: 74, 77; 56: 118, 122-3, pL 14 sinuosa firma, Chama 51:75-8, 143; 56: 118, 121, 123, pi. 13 sinuosa, Pleurodonte 49: 56 sinuosa, Geomelania (Chittia) 48: 88 sinuosuni, Guianadesma 57: 49, 52, pi. 8 Sinusigera 38: 67 Siogamaia 50: 108 -- subgenus of Tropaeas Sipho 54: 126 -- also as subgenus of Chrysodomus rectirostris 59: 61 Siphonaria 38: 56-8; 45: 76; 46: 104; 58: 115; 59: 108 alternata 38: 61; 51: 49 amara 35: 84 bifurcata 59: 108 brunnea 38: 61; 46: 104 characteristica 45: 75-6 -- see also • gigas c. cochleariformis 49: 2 cookiana 59: 108 gigas 45: 75; 46: 44-5; 59: 108 gigas characteristica 46: 45 japonica 59: 108 lecanium 52: 46 lessoni 59: 108 lineolata 35: 135 maura palmula 52: 46 naufragum 38: 61, 135 normalis 37: 3 pica 52: 46- thersites 38: 27 Siphonochelus 58: 34 siskiyouensis, Goniobasis, see G. acuti- filosa s. Sistrum faveolatum 37: 3 ferrugineum 52: 46 nodulosum 35: 121; 38: 61 spectrum 60: 56 sitchana, Littorina (Littorivaga) 38: 26; 47: 102; 49: 2 sitkana, Macoma 38: 25 Skenea olanorbis 56: 59; 58: 61 skidegatensis, Odostomia (Evalea) 38: 26; 51: 102 skogsbergi, Turbonilla (Pyrgolampros) 51: 54, pi. 4 skomma, Modiolaria 58: 16 slessica. Helix, see H. tingitana s. slevini, Bulimulus 46: 50, 109 sloaneana, Pleurodonte 49: 56 sloaneana vendryesi, Pleurodonte 49: 56 sloaneana, Rissoina 46: 119 sloaneana. Varicella, see V. similaris s, sloanei, Belocaulus 39: 17; 42: 46; 44: 133-4 sloanei, Eutrochatella 38: 60; 40: 89 sloanei, Vaginula 42: 45-6 sloanii, Onchidium 39: 13, 16-7; 42: 44 290 THE NAUTILUS Somatogyrus sloanii, Veronicella 39: 16; 48: 88 slosarskii rosenbergi, Clausilia 35: 95 slosarskii, Nenia 35: 95 Smaragdia 50: 113; 57: 106 -- also as subgenus of Neritina viridis 50: 110; 52: 28; 57: 106 viridis viridemaris 57: 106 viridis weyssei 57: 106 smaragdula, Latirus 60: 56 smegniatus, Pecten (Chlamys) 40: 67 smirna, Acteocina 35: 45-6, 123; 55: 121 smithi, Anguispira, see A. alternata s. smithi, Bellamya 56: 126 smithi, Cypraea 38: 35 smithi, Lima (Callolima) 37: 69 smithi, Limicolaria 50: 18 smithi, Neoplanorbis 58: 15 smithi, Prodallia 56: 11-2, pi. 2 smithi, Propebela 58: 108 smithi, Vitrea (Paravitrea) 43: 106 smithi, Vitrinella 55: 124 smithiana, Physa 37: 79 smithii, Helisoma 58: 32 -- see also H. campanulatum s. smithii, Panopea 43: 24, pi. 2 smithii, Planorbis, see P. campanulatus s. smithii, Tegula 37: 126 Smithoceras 38: 66 smithsoni, Haliotis 54: 74 sobrina, Polydontes 52: 38-41 socordia, Turritella 41: 36 sofia, Daphnella 56: 76 Sofia hyperlissa, Daphnella 56: 76 solandri. Trivia 37: 42; 46: 110; 48: 4 solaria. Helix 38: 85 Solariella bella, see varicosa b. crossata 40: 140 obscura 35: 32 periscopia 40: 140 varicosa 39: 131 varicosa bella 39: 131 Solaris, Trochus 37: 51 Solarium 54: 107 bisulcatum 54: 106 inornatum 59: 80; 60: 8 Solaropsis gibboni 51: 115 gibboni fairchildi 51: 115, pi. 9 Solecurtus costatus 51: 48 violaceus 37: 129 Solemya borealis 56: 59 (Petrasma) panamensis 37: 41; 55: 121 velum 56: 59; 58: 56, 137-40; 59: 97 Solen novacula 42: 65 novacularis 42: 65-6 patula 48: 73 rosaceus 36: 34, 51; 47: 47 sicarius 44: 92 viridis 54: 127; 58: 59 soleniformis, Solenaia 39: 116 Solenaia 39: 116 soleniformis 39: 116 Solenomphala 54: 121 Solenosteira anomala 37: 122-3 fusiformis 37: 123 mengeana 59: 144 solida, Achatina 60: 45 solida. Area 52: 44 solida. Area (Barbatia) 37: 127; 46: 28-9 solida, Byssoarca 46: 29 solida, Calyptraea 39: 9 solida, Cerithidea 56: 25-6 solida, Lora 38: 25 solida, Lymnaea 44: 76 solida, Parapholyx 47: 90-1 solida, Pseudorotella 59: 2 solida, Quadrula 36: 49 solida, Retinella, see R. cryptomphala s. solida, Stagnicola 39: 120 solidissima, Mactra 41: 10, 15 solidissima peninsulae, Spissula 51: 65 solidissima, Spisula (Hemimactra) 38: 50; 40: 25; 54: 127; 56: 60, 142; 57: 67 100; 58: 59; 60: 3 solidissima similis, Spisula 37: 55; 56: 142; 58: 59 solidula. Lacuna 38: 16 solidula carinata, Lacuna 38: 17-8; 50: 48 solidula compacta, Lacuna 38: 17 solidula, Laevoleacina 40: 90 solidula, Oleacina 38: 62 solidulum, Sphaerium 35: 109, 114, 116; 38: 10; 39: 123; 44: 90; 46: 138; 57: 93, 95; 58: 49; 59: 84-5 solidulus, Liguus 35: 73; 60: 45 solidum, Choanopoma 48: 65 solidum rufilabre, Choanopoma 48: 65 solidum, Sphaerium 40: 29; 43: 93 -- see also S. striatinum s. solidus, Liguus 35: 67-8, 71, 73; 36: 114; 45: 106 -- see also L. fasciatus s. solidus dohertyi, Liguus 47: 121, pi. 13 solidus dryas, Liguus 45: 106 solidus graphicus, Liguus 35: 71, 73; 45: 106 solidus innominatus, Liguus 44: 32 solidus lignumvitae, Liguus 44: 32 solidus pseudopictus, Liguus 44: 32; 47: 122 solisoccasus, Liguus, see L. fasciatus s. solitaria, Alcadia 48: 12 solitaria, Anguispira 43: 68; 44: 45 solitaria strontiana, Anguispira 44: 45 solitaria, Haminea 36: 60; 56: 141; 57: 31 solutus, Ceratodiscus 36: 15; 41: 62-3 Somatogyrus 41: 24, 26; 43: 14; 48: 110; 50: 16, 19, 62; 53: 127; 58: 3, 7 aldrichi 58: 8 aureus 52: 131; 58: 9 clenchi 50: 16, 18 coosaensis 58: 7-9 constrictus 58: 9 crassus 58: 8 currierianus 41: 24, 26 291 Somatogyrus INDEX TO decipiens 58: 9 depressus 41: 26; 56: 132 georgianus 50: 18; 58: 9 hendersoni 58: 10 hinkleyi 58: 7-9 integer 41: 26; 44: 46, 89, 130; 48: 60 nanus 58: 7-8 obtusus 58: 7, 10 pygmaeus 58: 8 subglobosus 44: 46 tryoni 41: 24, 26; 53: 126 umbilicatus 58: 10 virginicus 53: 126-7 sombrerensis, Lucina 52: 88-9 somersi Triphora 46: 119 Sonneratia rogersi 43: 25, pi. 2 stantonl 43: 25 Sonoma, Helminthoglypta 51: 35 Sonorelix 58: 72 avawatzica 58: 72 ora 58: 72 rixfordi 58: 72 Sonorella 35: 123, 125-6, 129; 37: 107; 40: 4; 41: 86-7, 89-90; 43: 73; 49: 109-10; 53: 143; 56: 83; 58: 72 baileyi orcutti 51: 33 coloradoensis 35: 48 ferrissi 40: 4 fisheri 43: 73 hachitana 49: 110 hachitana orientis 49: 110 orcutti, see baileyi o. orientis, see hachitana o. walkeri 40: 4 Sonorina 46: 50 sordellianum, Pisidium 40: 27 sordida, Calyptraea 39: 10 sordida, Chama 47: 82 sordida incurta, Goniobasis 41: 59 sordida, Lithasia, see L. obovata s. sordida, Melania 43: 5 sordidus, Limnaeus 53: 138-9 sorenseni, Haliotis 54: 74 sorensis, Lymnaea, see L. stagnalis s. soror, Chondropoma 48: 144 soror, Pleurodonte 49: 55 souleyetana, Theodoxus 50: 112 southalli, Cokeria 41: 92 souverbii, Lobiger 55: 39-40 souvillei, Placostylus 42: 74 -- see also P. fibratus s. sowerbi, Pecten 38: 113 sowerbii, Milax 57: 114 sowerbyana, Euglandina 54: 81 sowerbyana estafaniae, Euglandina 55: 60 sowerbyana. Leila 36: 9 sowerbyana, Physa 44: 106 sowerbyi, Macrodontes 60: 58 sozoni, Conus 56: 13 spadicea. Bursa (Marsupina) 54: 71 spadicea, Cypreae 37: 42; 52: 1, 3-4, 141, pi. 1 spadiceus, Conulinus 46: 102 Spahria 42: 108 Sparnotion 58: 30 sparsestriata, Physa 48: 48 sparsicostata, Strobilops 51: 127-8 Spartina 40: 69-70 sparus, Unio 37: 102 Spatha 39: 33; 49: 83 Spathopsis -- subgenus of Aspatharia spathula. Patella 37: 51 spathuliferus, Spondylus 51: 38-9 spauldingae, Terebra 55: 2 speciosus. Modiolus 49: 17 spectrum, Sistrum 60: 56 spei, Sagda (Parahelix) 48: 139; 49: 53 spei portlandensis, Sagda (Parahelix) 48: 139, pi. 9; 49: 53 Spekia 38: 111 spelaea, Polita 37: 132 spelaea, Vitrea, see V. subrupicola s. speluncaria, Pseudomonotis 57: 91 Sphaera, Neritina, see N. reclivata s. Sphaeriastrum 40: 29; 43: 93 sphaerica, Quadrula 39: 89 Sphaerium 35: 104-5, 108-9, 111, 113-4, 140; 37: 78, 98; 38: 139; 40: 29, 76, 107; 43: 93; 46: 137-8; 52: 15, 63, 79; 54: 9; 55: 139; 57: 94, 96, 117; 58: 35, 49, 79; 59: 84 acuminatum 40: 50, 62; 57: 95 acuminatum diaphanuni 57: 95 acuminatum lacuum 57: 95 albescens 57: 95 altile 57: 95 asiaticum 52: 59 attenuatum, see striatinum a. badium, see striatinum b. bakeri 57: 95 browni 57: 95 canadense 38: 10; 57: 95 cerinum 57: 95 concinnum 57: 95 corneum 40: 29; 52: 79; 57: 94, 96 corpulentum, see striatinum c. crassum 39: 123; 42: 96; 43: 93 -- see also sulcatum c. cumberlandicum 57: 95 dakotense 57: 95 -- see also sulcatum d. decisum, see sulcatum d. declive 57: 95 decorum, see striatinum d. dentatum 44: 113 diaphanum, see acuminatum d. elegans 57: 95 ellipticum, see sulcatum e. emarginatum 57: 95 eminens 57: 95 fabale 58: 49 fallax 42: 53; 43: 93-4; 57: 95 forbesi, see stamineum f. fuscatum 59: 84 gibbosum, see notatum g. 292 THE NAUTILUS Spirata giganteum 43: 95 glabrum, see notatum g. hendersoni 57: 95 insigne 57: 95 lacuum, see acuminatum 1. laeve, see stamineum 1. laevigatum 57: 95 levissimum, see striatinum 1. lilycashense 57: 95 lineatum 43: 93 -- see also sulcatum 1. modestum, see striatinum m. neoshense, see notatum n. nitidum 52: 59, 79-80, 82, 84, pi. 6 nobile 48: 48 notatum 41: 55, 57; 57: 95 notatum gibbosum 41: 56-7; 57: 95 notatum glabrum 57: 95 notatum neoshense 41: 56 novangliae, see striatinum n. nylanderi 57: 95 obscurum 57: 95 obtusum 57: 95 occidentale 35: 117; 39: 123; 40: 51, 114; 42: 96; 52: 125; 53: 135; 57: 94; 58: 49 ohiense 44: 128; 57: 95 ornatum 57: 95 pilsbrvanum 44: 110-1, 113; 47: 26; 57: 95 planatum, see sulcatum p. redense 57: 95 regulare 57: 95 rhomboideum 41: 84; 42: 54, 96, 136; 44: 90; 54: 144; 57: 46, 94; 59: 29 rivicola 35: 109: 40; 29; 43: 93 rugosum, see striatinum r. sculptum, see sulcatum s. simile 40: 50: 42: 53; 44: 90 solidulum 35: 109, 114, 116; 38: 10; 39: 123; 44: 90; 46: 138; 57: 93, 95; 58: 49; 59: 84-5 solidum 40: 29; 43: 93 -- see also striatinum s. stamineum 35: 114, 117; 40: 51; 47: 9; 57: 93, 95; 58: 49; 59: 83-5 stamineum forbesi 57: 95 stamineum laeve 57: 95 striatinum 35: 109; 37: 30; 38: 10; 39: 123; 40: 52; 41: 56; 42: 53; 44: 91, 130; 45: 118; 52: 131; 57: 93-6; 58: 49; 59: 27, 29, 84-5 striatinum attenuatum 57: 95 striatinum badium 57: 95 striatinum corpulentum 57: 95 striatinum decorum 57: 95 striatinum levissimum 57: 95 striatinum modestum 57: 95 striatinum novangliae 57: 95 striatinum rugosum 57: 95 striatinum solidum 57: 95 striatinum tenerum 57: 95 sulcatum 35: 109, 114; 36: 25; 37: 30; 39: 123; 40: 29, 62; 41: 84; 42: 53; 43: 93-5; 44: 143; 52: 15; 54: 144; 57: 45-6, 94-6; 59: 29, 84 sulcatum crassum 57: 95 sulcatum dakotense 43: 95 sulcatum decisum 57: 95 sulcatum ellipticum 57: 95 sulcatum lineatum 57: 95 sulcatum planatum 43: 95; 57: 95 sulcatum sculptum 57: 95 tenerum, see striatinum t. tenue 38: 10; 40: 29, 62 torsum 57: 95 truncatum 39: 123 tumidum 38: 10 vermontanum 38: 10; 57: 95 walkeri 57: 94, 96 wisconsinense 57: 95 wrighti 57: 95 Sphenia 55: 121 Sphenonaias 36: 36 -- also as subgenus of Elliptio spicata, Purpura 38: 20 spicata pindarina, Oliva 37: 123 spiceri, Comptopallium 58: 52, pi. 2 spillmani, Strophitus 36: 132 spillmanii, Gyrotoma 58: 'il spillmanii, Paludina 52: 127 spilmani, Unio 37: 142-4 spina, Varicella 49: 26; 55: 26 spinella. Cassis, see C. madagascarensis s. Spineoterebra 37: 61-2 spinosa, Chama 47: 82-3, 85 spinosa, lo 38: 141 spinosa, Lyrodes 52: 87 spinosa, Papyridea 49: 118 spinosa, Polygyra 47: 147 spinosa, Pyrgulopsis 52: 87 spinosa, Unio 43: 140 spinosum, Buccinum 37: 51 spinosum, Crucibulum 36: 33; 37: 125; 46: 113; 52: 45 spinosus, Elliptio 42: 29; 49: 74 spinosus, Pecten 50: 55 spinulosa, Melania 37: 36 spinulosa, Terebra 37: 62 spiralis, Fluminicola 48: 16 spiralis, Margarites, see M. umbilicalis s. spirata, Acanthina 38: 19, 21, 104 spirata, Acanthina (Acanthinucella) 50: 47 spirata aurantia, Acanthina 38: 21 spirata punctulata, Acanthina 38: 21 spirata unicarinata, Acanthina (Acan- thinucella) 38: 104 spirata, Purpura 38: 19-20 spirata, Vermicularia 37: 55; 38: 62; 39: 86; 58: 61 293 Spiratella INDEX TO Spiratella -- also as subgenus of Limaclna balea 47: 55 bulimoides 47: 55 trochiformls 47: 55-6 retroversa 47: 55-6 splratum, Monoceros 38: 20 Spiraxls 40: 64; 41: 21; 53: 8-9, 11-2, 14-5, 49, 89, 93; 54: 81 acus 53: 14 (Mirapex) acus enigmaticus 53: 11-4, 93, pi. 4 acus minor 53: 51 anomalus 49: 25; 53: 15-6 (Euspiraxis) anomalus hollandi 49: 25; 53: 16, pi. 5 (Versutaxis) arctatus 53: 89, 93, pi. 11 (Pseudosubulina) arcuatus 52: 134; 53: 94, pi. 5 atoyacensis, see sulciferus a. (Pseudosubulina) berendti 53: 11, 14, 94, pi. 3 -- see also sulciferus b. blandi 53: 11 borealis 52: 133; 53: 94 (Pseudosubulina) caducus 52: 133; 53: 94, pi. 4 canalzonalis 53: 92 confertestriatus 53: 50-1 (Pseudosubulina) costatus 52: 133-4; 53: 94, pi. 5 costulosus 53: 11 (Rectaxis) decussatus 53: 10, 15, 92 delicatus 53: 51 enigmaticus, see acus e. (Volutaxis) fallax 53: 90, 93, pi. 11 fortis 52: 133 (Versutaxis) futilis 53: 52, 89, 93 pi. 9 (Rectaxis) granum 53: 49-51, 93, pis. 9, 11 hollandi, see anomalus h. (Rectaxis) intermedius 53: 13, 50, 93 inusitatus 49: 25; 53: 11, 15-6, pi. 5 irregularis 52: 132 ( Pseudosubulina) irregularis negli- gens 52: 132; 53: 94, pi. 5 laeviusculus 55: 28 linearis 52: 134; 53: 50, 92 (Volutaxis) maya 47: 115 melanielloides 53: 14 minor 53: 14 -- see also acus m. and nitidus m. (Microniena) minusculus 53: 92, 94, pi. 11 (Micromena) niinutus 53: 11, 14-5, 92, 94, pi. 3 mirabilis 49: 25: 53: 11, 15, pi. 5 (Miraradula) miradorensis 53: 12, 93 negligense, see irregularis n. nitidus 53: 14, 91-2, 94 nitidus minor 53: 51 (Volutaxis) nitidus persulcatus 53: 51, 91, pi. 11 obesus, see tenuecostatus o. odiosus 53: 13 (Versutaxis) opeas 53: 11, 13, 52, 93, pi. 3 (Pseudosubulina) orizabensis 53: 9, 94 (Pseudosubulina) parvus 52: 134; 53: 10, 51, 94, pi. 9 patzcuarensis 53: 52, 89 persulcatus 53: 94 -- see also nitidus p. problematicus 49: 25; 53: 10, 15 rhabdus 53: 50 (Miraradula) similaris 53: 10, 12-3, 93, pi. 4 (Versutaxis) subgranum 53: 51, 93, pi. 9 (Rectaxis) subnitidus 53: 51, 93, pi. 9 (Versutaxis) subopeas 53: 52, 89, 93, pi. 9 (Rectaxis) subtilis 53: 50-1, 93, pi. 9 (Rectaxis) subtilis vitreus 53: 50, 93, pi. 9 (Volutaxis) subulinus 53: 90-1, 93, pi. 11 (Volutaxis) sulciferus 53: 11, 14, 89-90, 93, pi. 4 (Volutaxis) sulciferus atoyacensis 53:89, 93, pi. 11 (Volutaxis) sulciferus berendti 53: 93 tenuecostatus 53: 14, 91, 93-4 (Volutaxis) tenuecostatus obesus 53: 91, 94, pi. 11 tenuis 53: 14, 91 (Repressaxis) terebella 49: 25; 53: 11, 16, pi. 5 texoloensis 52: 133 uruapamensis 53: 90 (Pseudosubulina) ventrosus 52: 132-3; 53: 94, pi. 5 vitreus, see subtilis v. spirilloides, Murex 37: 51 spirillus, Murex 37: 51 spiriplana. Helix 37: 72 spiritualis, Delphinoidea 55: 121 Spirocaulis 39: 14, 18; 44: 136 Spirocoptis -- subgenus of Urocoptis Spiroglyphus lituellus 37: 42; 50: 48; 51: 103 Spirolidium 40: 134 mediterraneum 40: 134 spirorbis. Helix 35: 13 Spirorbula -- subgenus of Geoniitra Spirostemma cognatum 49: 57 dunkeri 49: 56 ipswichense 49: 56 mandevillense 49: 57 tenellum 49: 57 tenellum tenerum 49: 57 tenerum, see tenellum t. Spirotropis perversa 60: 93 Spirula 37: 72: 38: 56; 42: 71 peronii 38: 62 spirula 39: 141; 58: 62 294 THE NAUTILUS Stagnicola spirula, Spirula 39: 141; 58: 62 spirulina, Geomitra 35: 13 Spisula, see Spissula Spissula 57: 100 -- also as subgenus of Mactra (Polynyma) alaskana 38: 25 -- see also polynyma a. (Hemimactra) catilliformis 38: 101; 44: 92 falcata 38: 100, 102 (Hemimactra) hemphilli 38: 101 peninsulae, see solidissima p. (Symmorphomactra) planulata 38: 102; 53: 22 polynyma 35: 32 polynyma alaskana 38: 101; 47: 102 simills, see solidissima s. (Hemimactra) solidissima 38: 50; 40: 25; 54: 127; 56: 60, 142; 57: 67, 100; 58: 59; 60: 3 solidissima peninsulae 51: 65 solidissima similis 37: 55; 56: 142; 58: 59 (Hemimactra) voyi 38: 101 spixi, Odontostomus 54: 92 Spixia 54: 92 -- subgenus of Odontostomus splendens, Anoma 49: 57; 58: 31 splendens albida, Anoma 49: 57 splendens citrina, Anoma 49: 57 splendens levior, Anoma 49: 57 splendens medinae, Anoma 49: 21, 57, pi. 2 splendens quadricolor, Anoma 49: 57 splendens roseolabris, Anoma 49: 57 splendens, Calliostoma 37: 43 splendida, Helix 35: 103 splendidulum, Pisidium 35: 112 spondyloidea, Ostrea 37: 51 •Spondylus 40: 81; 46: 111; 47: 82; 48: 76; 49: 28-9; 51: 38-9; 53: 39; 55: 72 americanus 51: 38-9; 54: 21 -- see also echinatus a. arachoides 51: 38 avicularis 51: 38 calcifer 52: 46 crassisquama 37: 128 dominicensis 51: 38 ducalis 51: 39; 60: 56 echinatus 38: 62; 49: 117; 51: 38 echinatus americanus 52: 28 gussoni 51: 38 ictericus 51: 38-9 limbatus 57: 5 longispina 51: 38 longitudinalis 51: 39 pesasininus 51: 38 pictorum 46: 110 spathuliferus 51: 38-9 variegalus 51 : 39 zonalis 49: 29 sponsalis, Conus 60: 56 sporadlca, Varicella (Vagavarix) 55: 28 sportella, Circinaria 38: 28 sportella, Haplotrema 36: 38, 106; 48: 47; 54: 132 spreta, Hyalosagda 48: pi, 8; 49: 52-3 spreta, Ostrea 58: 57 spurca, Cypraea 53: 38; 58: 38 spurius, Conus 37: 51 squalida, Macrocallista 37: 129; 46: 75, 114; 52: 45 squama, Crepidula 37: 125 squamigerus, Aletes 37: 42; 47: 52 squamigerus, Serpulorbis 37: 125 squamosa, Cepolis 56: 81-2, 88-90, pi. 10 squamosa, Cepolis (Bellacepolis) 56: 86, 88 squamosa, Venus 37: 51 squamosus. Chiton 35: 120-1 squamosus, Pecten 40: 67 squamulifera, Ocenebra 60: 40, 43, pi. 4 squamulifera, Tritonalia 52: 10-1 squamuligera, Chama 47: 82; 58: 96 squarrosus, Pecten 58: 99 Staff Ola 36: 85 stageri, Micrarionta 59: 104 stagnalis, Lymnaea 38: 11; 40: 137; 41: 41: 42: 97; 46: 137; 50: 115, 134; 51: 39; 53: 78, 134; 54: 143-4; 55: 19, 71, 105-6; 57: 8-9, 45-6, 52, 54, 58; 58: 78 stagnalis appressa, Lymnaea 36: 25; 38: 11; 39: 125; 40: 55, 59; 41: 103; 42: 16, 129; 43: 82; 44: 110; 45: 140; 48; 109; 53: 78; 54: 7; 57: 9-10, 13, 52, 54-5, 57 stagnalis jugularis, Lymnaea 44: 110, 113; 45: 140; 47: 3; 51: 131 stagnalis lillianae, Lymnaea 42: 16, 97; 50: 115; 57: 54 stagnalis occidentalis, Lymnaea 41: 76; 55: 18, 105 stagnalis perampla, Lymnaea 57: 9 stagnalis sanctaemariae, Lymnaea 39: 125; 57: 54 stagnalis sorensis, Lymnaea 52: 58 stagnalis wasatchensis, Lymnaea 40: 76; 42: 120-1; 44: 113; 45: 140; 50: 115 stagnalis, Unio 37: 103 Stagnicola 40: 82; 46: 98; 47: 30; 48: 142; 51: 131 -- also as subgenus of Lymnaea angulata, see emarginata a. apicina 39: 120; 45: 139-40 binneyi 39: 120; 42: 122 bryantwalkeri, see emarginata b. bulimoides 52: 144 bulimoides cassi 54: 117 bulimoides techella 50: 14; 54: 117; 55: 143 bulimoides vancouverensis 52: 144; 53: pi. 7 buttoni, see palustris b. and proxima b. 295 Stagnicola INDEX TO canadensis, see emarginata c. (Hinkleyia) caperata 42: 125; 43: 42, 119; 44: 88; 45: 117; 50: 14; 54: 117; 56: 54 cassi, see bulimoides c. catascopium 39: 120; 42: 123; 47: 31; 49: 129; 58: 78 couleensis 42: 120, 122; 47: 31 elodes, see palustris e. eirodi 47: 30-2, 124 elrodlana 49: 64 emarginata 40: 83-4; 47: 31; 48: 109- 10; 49: 12-3, 128-9; 55: 106 emarginata angulata 39: 120; 40: 83 emarginata bryantwalkeri 49: 127-9 emarginata canadensis 42: 56; 49: 12, 128-9 emarginata magnifica 49: 128-9; 55: 106 emarginata mighelsi 40: 83-4; 55: 106 emarginata ontariensis 39: 120; 49: 12 emarginata serrata 49: 128-9 emarginata vilasensis 40: 82; 42: 136; 49: 129; 55: 106 emarginata wisconsinensis 40: 84, 86 exilis 42: 136; 43: 42 hemphilli 47: 124; 48: 19 impedita 47: 124; 48: 20 intertexta 42: 123; 47: 31-2 johnsoni 50: 114-5 kingi 46: 97, 99; 47: 26 kirtlandiana 48: 20 lanceata 42: 97 magister 47: 124 -- see also palustris m. magnifica, see emarginata m. mighelsi, see emarginata m. montana 47: 31-2 newfoundlandensis, see palustris n. nuttalliana 48: 140 -- see also palus- tris n. ontariensis, see emarginata o. palustris 40: 84-5; 48: 18-9, 109; 49: 11-3; 50: 115; 58: 78 palustris buttoni 48: 18 palustris elodes 44: 45; 45: 117; 49: 11-2; 50: 115 palustris magister 48: 17 palustris newfoundlandensis 49: 12 palustris nuttalliana 46: 98; 48: 17-8; 49: 12; 50: 14, 115; 54: 29; 56: 54 palustris papyracea 49: 10 palustris perpalustris 49: 11 palustris ungava 49: 10-1 palustris wyomingensis 40: 84; 48: 18-9; 50: 14 papyracea, see palustris p. perpalustris, see palustris p. proxima 40: 84-5 proxima buttoni 47: 124 reflexa 44: 45; 51: 130 serrata, see emarginata s. solida 39: 120 techella, see bulimoides t. traskii 48: 19 ungava, see palustris u. vahlii 54: 2 vancouverensis, see bulimoides v. vilasensis, see emarginata v. walkeriana 39: 119-20; 45: 139-40 wisconsinensis, see emarginata w. wyomingensis, see palustris w. stagnicola, Lymnaea 57: 8 stagnorum, Unio 47: 75 staminea, Area 51: 49 staminea, Cyclas 59: 83 staminea, Paphia 38: 70; 43: 50, 120; 44: 92; 47: 102; 52: 45; 56: 42 staminea orbella, Paphia 43: 50 staminea ruderata, Paphia 43: 50; 44: 92; 56: 42 staminea, Protothaca 38: 25 staminea, Venerupis (Protothaca) 53: 108 stamineum, Sphaerium 35: 114, 117; 40: 51; 47: 9; 57: 93, 95; 58: 49; 59: 83-5 stamineum forbesi, Sphaerium 57: 95 stamineum laeve, Sphaerium 57: 95 Standella californica 38: 99, 101 nasuta 38: 99 planulata 38: 102 thracioides 48: 120 stanleyi sinus, Palaeohelicina 50: 54 stantoni, Cerithium 54: 72 stantoni, Chrysodomus 47: 93 stantoni, Cophocara 40: 144 stantoni, Neptunea (Sulcosipho) 47: 93 stantoni, Sonneratia 43: 25 stantoni, Thericium 54: 72 -- see also T. moenensis s. staphylaea, Nuclearia 57: 83 Staphylea polita 57: 26 semiplota 57: 26 starkei, Systrophia 41: 125 staurella, Tellina 60: 57 Stauroglypta 48: 136 -- subgenus of Hyalosagda stearnsi, Lamellaria 48: 43; 52: 124 stearnsi, Pristiloma 36: 37-8; 43: 122-3; 47: 112 stearnsi, Rissoina 36: 122 stearnsi, Zonites 43: 122 stearnsiana, Micrarionta 51: 61 stearnsiana, Paludestrina 48: 33 stearnsii, Mytilus 56: 31, 43 stearnsii, Odostomia 53: 22 Steatocoptis 55: 70 Steatodryas 46: 72; 59: 121 Stectoplax gracilior 58: 102 porrectus 58: 102 steenbuchi, Pisidium 40: 26 296 THE NAUTILUS Streatori stefanensis, Bartlettia 55: 93-4; 57: 51 steinii, Hydrobia 60: 86-7 steinii, Marstoniopsis 60: 86 steinii, Musculium 42: 27 stejnegeri, Cerithiopsis 51: 103 stellaeformis, Patella 40: 139; 60: 55 stellaeformis optima, Patella 40: 138 stellata, Mangilia 37: 54 stelleri. Chiton 39: 75-6 stelleri, Cryptochiton 38: 28; 39: 47-8; 46: 123; 47: 102; 50: 142 stelleri, Valvata 52: 59 stelmatophora, Cipangopaludina, see C. chinensis s. Stenacme 58: 112-3 floridana 58: 112-4, pi. 5 Stenochiton 37: 72; 39: 36 juloides 37: 72; 39: 36 longicymba 39: 36 Stenogyra goodalli 48: 84 Stenophysa 44: 106 Stenoplax fallax 58: 101 Stenopus cayennensis 57: 47 Stenotrema 39: 80; 48: 20, 77, 83; 49: 19; 52: 54-5, 98; 53: 33; 54: 113; 55: 9 -- also as subgenus of Polygyra altispira 52: 55 barbigerum 55: 8, 97 cavum, see fraternum c. cinctum, see monodon c. edvardsi 52: 55; 58: 127 fraternum 52: 98; 54: 88-9, 113-5; 55: 13; 58: 26, 126-8; 59: 28, 89 fraternum cavum 52: 98; 54: 113-5 fraternum montanum 52: 98-9; 53: 33, pi. 7 hirsutum 52: 55; 54: 145; 55: 14; 57: 135; 58: 25-6, 127-8 hubrichti 56: 73-4 maxillatum 55: 9 monodon 52: 98; 53:33; 54: 78, 113-5 monodon cinctum 52: 98 montanum, see fraternum m. notata 58: 128 stenotrema 52: 55; 54: 19; 55: 9, 97; 58: 127-8 waldense 52: 54-5 stenotrema, Polygyra 39: 80; 40: 66: 43: 67; 44: 17; 46: 17, 90-1; 47: 147; 48: 36, 79; 53: 46 stenotrema, Stenotrema 52: 55; 54: 19; 55: 9, 97; 58: 127-8 stenurus, Agriolimax 37: 28 Stephanoda 52: 116 patagonica 52: 115-6 stephanophora, Janulus 60: 95 stephensae, Odostomia ( Evalea) 38: 26; 51: 102 stephensoni, Mitra 51: 91 stercus-muscarum, Cerithium 48: 4; 52: 44 stercus-muscarum, Conus 60: 56 Sterkia 36: 64 sterkiana, Gastrocopta, see G. procera s, sterkii. Elliptic, see E. dilatatus s. and E. gibbosus s. sterkii, Euconulus 51: 105 sterkii, Guppya 37: 66-7; 40: 47-8; 42: 20; 53: 47 sterkii, Lymnaea, see L. parva s. sterna, Pteria 46: 74 stevensoni, Cerion 51: 19, 23, pi. 3 stevensoniana, Partula 44: 141 stewardsoniana, Goniobasis 41: 59 stewartiana,Anodonta 39: 91 stewartii, Achatinella 38: 79 stewartii producta, Achatinella 38: 78-9 Sthenorhytis -- subgenus of Epitonium and Scala stigmatica, Euglandina (Varicoglandina) 55: 56, 60 stigmatica, Setipellis 52: 143; 56: 82, 89, pi. 10 stigmatica, Thysanophora 40: 90 Stigmaulax -- subgenus of Natica Stilifer castaneus 38: 97 perdepressus 38: 97 Stiliger fuscata 59: 95-7 stimpsoni, Colus 35: 30; 42: 39; 56: 59, 141; 57: 67 stimpsoni, Dentalium, see D. entale s. stimpsoni, Stylifer 56: 141 stimpsoni, Transenella 37: 54; 49: 119 stimpsoni, Truncatella 37: 43 Stimpsonia 47: 12 nickliniana 46: 36 stimpsonii, Colus 35: 32, 88; 39: 135 stimpsonii, brevis, Colus 40: 21 stimpsonii, Fusus 35: 88 stimulus, Trochus 37: 51 stirophorus, Circulus 51: 67 stiversiana, Helminthoglypta, see H. arrosa s. Stoastoma 37: 89; 41: 62; 48: 13-4 livesayanum 48: 63 pisum 48: 62-3 Stoastomops 39: 106; 40: 35; 48: 14 adamsi 48: 10, pi. 3 tenuis 48: 63 walkeri 37: 89; 48: 110 stokesii. Chiton 36: 51 stolida, Cypraea 57: 83 Stomatella elegans 60: 55 Stomatia phymotis 60: 55 phymotis obscura 60: 55 stonei, Neptunea 54: 128 stoneri, Pupilla 43: 143 storchi, Planorbis 50: 128 straminea, Oleacina, see O. oleacea s. straminea, Terebra 36: 123 strangulata, Pleurodonte 49: 56 strangulata, Urocoptis 40: 91 streatori, Cepolis (Hemitrochus) 56: 4-5 streatori, Pisidium 37: 30; 40: 51 297 Strebeli INDEX TO strebeli, Strobilops 35: 91 -- see also S. labyrinthica s. strebeli aenea, Strobilops 37: 66-7 Strebelia 55: 52-3 berendti 55: 53 streckeri, Lampsilis 41: 139, pi. 2 strengi, Lymnaea, see L. obrussa s. Strephobasis 38: 138, 141; 42: 144; 43: 141; 53: 74 bitaeniata 41: 58 Strepoma angularis 43: 2 concolor 43: 2 Strepsidura contorta 40: 69 heilprini 40: 69 Streptacis 45: 35 Streptartemon 41: 127 Streptaxis 38: 88; 41: 126-7 apertus 45: 30 distortus 41: 127 glaber 39: 1; 57: 48 (Odontartemon) glaber normalis 38: 86 jheringi 41: 126 nobilis 41: 127 normalis, see glaber n. totostriatus 41: 126 Streptochiton 58: 102 zonulatus 58: 102 streptodon. Helix 41: 127 Streptostele 54: 135 Streptostyla 40: 64; 41: 21; 53: 10; 55: 52-3, 55 atypica, see nicoleti a. chiriquiana 40: 130-1 chiriquiensis 55: 59 conformis, see streptostyla c. cubensis 55: 53 glandiformis 55: 60 (Chersomitra) irrigua 55: 60 irrigua quirozi 55: 60 lymneiformis 55: 59 meridana 55: 59 (Eustreptostyla) nicoleti 40: 64; 41: 21; 55: 53, 59 (Eustreptostyla) nicoleti atypica 55: 55-6, 59 nicoleti subovata 55: 56 nigricans 41: 21; 55: 53 (Rectoleacina) physodes 55: 56, 59 plicatula 55: 60 quirozi 55: 56 -- see alsa irrigua q. shuttleworthi 55: 60 streptostyla 41: 21; 55: 53, 60 streptostyla coniformis 55: 60 subovata, see nicoleti s. toyuca 41: 21 turgidula 55: 60 ventricosula 55: 60 vexans 55: 56, 60 viridula 40: 130-1; 55: 59 yucatanensis 55: 60 streptostyla, Achatina 41: 21 streptostyla, Streptostyla 41: 21; 55: 53, 60 streptostyla coniformis, Streptostyla 55: 60 Streptostylella 55: 52, 54, 56 Streptostylops 55: 52 Streptostylus flavescens 40: 130 pallidus 40: 130 Strialuna 41: 128; 48: 136; 50: 70-1 -- subgenus of Hyalosagda striata, Alcadia (Emoda) 54: 71 striata, Aligena 55: 48 striata, Anoma 49: 57 striata corpulenta, Anoma 49: 57 striata, Astarte 40: 24 striata, Brachypodella, see B. alba s. striata, Bullaria 38: 60; 39: 84 striata, Corbula 40: 42 striata, Donax 37: 83 striata, Georissa 41: 32 striata, Hyalocylis 47: 55 striata, Martesia 49: 111 striata, Melania 42: 31 striata, Mesodesma 60: 57 striata, Modelia 38: 16 striata, Obovaria 36: 83 striata, Sconsia 60: 1 striata, Urocoptis, see U. rosea s. striatella, Pupa 57: 35 striatella,Pyramidula47: 8 striatella. Varicella, see V. leucozonias s. Striatellum, Cerion 57: 34-5 striatellus, Gonyodiscus 37: 132 striatellus Trochus 56: 23, 29 Striatemoda 54: 71 striatinum, Sphaerlum 35: 109; 37: 30; 38: 10; 39: 123; 40: 52; 41: 56; 42: 53; 44: 91, 130; 45: 118; 52: 131; 57: 93-6; 58: 49; 59: 27, 29, 84-5 striatinum attenuatum, Sphaerium 57: 95 striatinum badium, Sphaerium 57: 95 striatinum corpulentum, Sphaerium 57: 95 striatinum decorum, Sphaerium 57: 95 striatinum levissimum, Sphaerium 57: 95 striatinum modestum, Sphaerium 57: 95 striatinum novangliae, Sphaerium 57: 95 striatinum rugosum, Sphaerium 57: 95 striatinum solidum, Sphaerium 57: 95 striatinum tenerum, Sphaerium 57: 95 striatula, Alcadia 54: 71 striatula, Brachypodella, see B. alba s. striatula, Couthouyella 35: 87; 39: 132 striatula, Goniobasis 58: 44 striatula, Leptachatina 38: 82 striatula, Melania 42: 31 striatula, Minolia 36: 122 striatum, Buccinum 37: 51 striatum, Buccinum, see B. undatum s. striatum, Crucibulum 39: 39; 52: 28; 56: 141; 58: 60 striatum, Pleurobema 36: 82 striatum, Pleurocera 56: 132 Striatura 56: 69; 60: 94 exigua 48: 58; 53: 87 ferrea 41: 34; 44: 128; 48: 58; 52: 92; 53: 87; 56: 69; 57: 133 298 THE NAUTILUS Strombus meridionalis 53: 47; 55: 8 -- see also milium m. milium 37: 66; 40: 4a; 42: 21, 34; 43: 114, 144; 48: 58; 52: 95; 56: 69; 57: 133 milium meridionalis 39: 28; 40: 16; 43: 114 milium pugetensis 36: 37-8 pugetensis, see milium p. Striaturops ferrea 44: 128 striatus, Conus 36: 121; 55: 2; 57: 72; 60: 56 striatus, Planorbis, see P. antrosus s. striatus, Unio 36: 83 stricta, Rissoina 52: 46 strigata, Partula, see P. radiolata s. strigata, Terebra 37: 123 Strigatella (Atrimitra) catalinae 37: 41 (Atrimitra) idae 37: 41 strigatum, Buccinum 37: 51 Strigella fucata 52: 46 Strigichiton 39: 36 strigilatum, Buccinum 37: 51 Strigilla flexuosa 49: 119 strigillata, Terebra 37: 62 strigosa, Melania 41: 58; 42: 31 strigosa, Oreohelix 42: 120; 49: 69; 50: 73-7 strigosa cooperi, Oreohelix 48: 71; 53: 142 strigosa delicata, Oreohelix 49: 69 strigosa depressa, Oreohelix 35: 48; 40: 4; 41: 88; 50: 13, 101; 53: 143; 54: 29-30, 96, 108, 116-7: 55: 143; 56: 53 strigosa gabbiana, Oreohelix 54: 29 strigosa goniogyra, Oreohelix 49: 69 strigosa iowensis, Oreohelix 56: 104 strigosa capax, Oreohelix 50: 101 strigosus, Elliptio 49: 81 striolata, Entalis 35: 87 striolata, Helix 44: 139 striolata, Hygromia 51: 137-8, 140; 54: 74 striolata alba, Hygromia 51: 140 striolata albocincta, Hygromia 51: 140 striolata rubens, Hygromia 51: 140 striolata, Thelidomus 44: 139 striolata, Trichia 51: 137 striosa, Geomelania 48: 88 striosa pumila, Geomelania (Scalatella) 48: 83, 88 striosa pumila, Geomelania 48: pi. 3 striosa, Mangilia 36: 18 striosa, Poteria, see P. corrugata s. striosa, Tellina 37: 51 striosus, Lamellaxis 49: 25 Strioterebra 37: 62 Strioterebrum 37: 62 Strioturbonilla -- subgenus of Turbonilla Strobila 35: 91-2 Strobilops 35: 91-2; 36: 63; 40: 64, 72; 44: 38; 53: 79; 54: 20 aenea 40: 69; 42: 21; 46: 58; 48: 106; 55: 10 -- see also strebeli a. affinis 35: 91; 39: 124; 42: 14; 43: 43-4, 68, 80 floridana 37: 66; 42: 21; 51: 106 hirasei 41: 102 hubbardi 35: 91; 37: 66, 68; 38: 7; 41: 102; 42: 21 labyrinthica 35: 91, pi. 2; 42: 135; 43: 68, 118-9; 44: 87; 48: 71, 106; 53: 47, 88; 54: 19; 55: 10, 97; 57: 132; 60: 98 labyrinthica strebeli 40: 69 labyrinthica texasiana 39: 12; 40: 16 labyrinthica virgo 44: 87-8; 47: 139 morsei 35: 91 salvini 35: 91 sparsicostata 51: 127-8 strebeli 35: 91 -- see also labyrinthica s. strebeli aenea 37: 66-7 texasiana 35: 91; 47: 16; 51: 128 -- see also labyrinthica t. vendreyesiana 35: 91 Virgo 35: 91; 36: 25; 42: 135 -- see also labyrinthica v. Strobilus 47: 60 achatinoides 47: 61 Strombiformis costatus 56: 20-1 hemphilli 52: 34 langfordi 38: 97 strombiformis, Columbella 37: 124 Strombina recurva 37: 124 Strombus 36: 110; 38: 56-8; 43: 72; 44: 26; 55: 107; 56: 19; 60: 46 alatus 56: 36 -- see also pugilis a. aporrhais 37: 46 bituberculatus 35: 120-1; 38: 62; 50: 140; 55: 108; 56: 18-9 canarium 60: 55 costatus 58: 37; 60: 46-8, pi. 6 floridus 60: 55 galeatus 45: 78; 46: 114; 52: 46; 57: 4 gallopavus 37: 48 gallulus 37: 48 gallus 54: 71; 55: 144 gibberulus 55: 2; 60: 55 gigas 35: 118, 120-1; 38: 58, 62, 86; 53: 38; 58: 37; 60: 46-8, pis. 5,6 gigas horridus 54: 74 gigas verrilli 60: 46-8, pis. 5, 6 goliath 55: 108 gracilior 55: 114 granulatus 46: 109 hawaiiensis 55: 2 horridus, see gigas h. ignomon 37: 48 lentiginosiformis 37: 49 lentiginosus 60: 55 lineolatus 56: 20 luhuanus 37: 49; 60: 55 maculatus 35: 84; 36: 123; 55: 2 marginatus 37: 49 millepedarius 37: 49 nanus, see raninus n. peruvianus 52: 46 299 Strombus INDEX TO pugilis 37: 50, 53, 55; 39: 82, 86; 58: 108; 60: 34 pugilis alatus 49: 133; 54: 20; 57: 143; 58: 61, 108; 59: 35 raninus 55: 108; 56: 18-9, pi. 4 raninus nanus 56: 19, pi. 4 samar 36: 123 samba 60: 102 savii 43: 10 urceolus 37: 52 urceus 60: 55 verrilli, see gigas v. strongi, Epitonium (Nitidiscala) 45: 115; 46: 36 strongi, Haminoea 46: 140-1 strongi, Odostomia (Evalea) 37: 42 strongi, Turbonilla (Pyrgolampros) 45: 67, pi. 4 strongianum, Epitonium 46: 36 strontiana, Anguispira, see A. solitaria s. strontiana, Polygyra, see P. profunda s. strophia, Tellina 49: 136 Strophia 43: 102 Strophiops -- subgenus of Cerion Strophitus alabamensis 36: 130 conasaugaensis 36: 130-2 edentulus 36: 98, 130-1; 37: 29; 38: 10; 39: 122; 43: 90-1; 44: 89 edentulus pavonius 36: 98 edentulus rhombicus 35: 132 gesneri 36: 130 pavonius, see edentulus p. and rugosus p. rhombicus, see edentulus r. and rugosus p. rugosus 39: 93; 40: 66; 42: 51; 44: 47, 89, 130; 59: 110 rugosus pavonius 42: 52 rugosus rhombicus 40: 50; 42: 51 spillmani 36: 132 tombigbeensis 36: 132 undulatus 37: 29; 54: 52 Strophocheilus 41: 96 -- also as subgenus of Bulimus felipponei 41: 96 globosus 41: 96; 42: 21 lutescens 41: 96 oblongus 43: 99; 49: 35-6 planidens 43: 76 porphyrostoma 43: 75 unidentatus 43: 76 yporanganus 43: 77 stuartiae. Helix 50: 30 stuartiae, Nanina 51: 104 stuartiae, Naninia 50: 30 stultorum, Tivela 35: 134; 38: 68 Sturanya 42: 70; 48: 53-4 laciniosa 48: 54 Sturanyella 48: 54 stuxbergi, Vaginulus 51: 88 Styganodon 36: 7 stygia, Lithasia, see L. armigera s. stygia, Melania 51: 93 stygium, Carychium 38: 134 Stylidium -- subgenus of Bittium Stylifer stimpsoni 56: 141 Styliferina 36: 27 Stylodonta 46: 72 niicrodonta 59: 121 suavidicus, Diplodon 57: 15 suavitas, Suavitas 54: 58 Suavitas 52: 143-4; 54: 58; 56: 89 monteplatonis 45: 72 suavitas 54: 58 (Aquebana) velutina 54: 59 subaequa. Varicella, see V. blandiana s. subaequilatera, Astarte 40: 24 subaequilatera whiteavesi, Astarte 40: 24 subalata, Mactra, see M. alata s. subangulata, Lampsilis 47: 127 subangulata, Tritonalia 50: 47, 50 subangulata, Turbonilla (Bartschella) 55: 122 subannulata acropora, Turritella 52: 28 subaquila, Helix 54: 60 subaquila, Hyalosagda 54: 60, pi. 5 subaquila. Varicella (Sigmataxis) 48: 85, pi. 3; 49: 27 subaspera, Vaginula 39: 14-5; 44: 136 subauriculata, Limatula 38: 24; 51: 101 subcancellata, Ervilia 49: 119 subcarinata, Helicostyla 49: 140-1 subcarinata archeri, Helicostyla 49: 140, pi. 8 subcarinata, Lioplax 36: 20-1; 48: 143; 49: 67; 58: 5 subcarinata occidentalis, Lioplax 48: 143- 4; 49: 67 subcarinata, Monadenia, see M. fidelis s. subcarinata,' Vitrina 42: 138 subcavernula. Helix 46: 70-1 subcavernula, Libera 46: 71 subconica, Cepolis 49: 56 subconica pulchrior, Cepolis 49: 56 subconica, Dialeuca 56: 91, pi. 11 subcoronata perspinosa, Melongena 47: 120 -- see also M. corona s. subcoronata, Scalaria 55: 46 subcoronatum, Epitonium 42: 2; 55: 47 subcostata, Mekongia 56: 129 subcylindracea, Leptachatina 38: 81 subcrenatum, Helisoma 50: 14, 115 subcrenatus, Planorbis 38: 11 subcylindracea, Ferrussacia 42: 135 subdeclivis, Turricula 50: 91 subdentata, Helicella 59: 119 subdiaphana, Cooperella 36: 34; 37: 41; 55: 113 subdiaphana, Marcia 38: 24; 43: 50 subdola, Retinella, see R. sculptilis s. subdola. Varicella (Varicellaria) 49: 22- 3, 26, pi. 2 subellipsis, Unio 37: 103 subelliptica, Rivularia 56: 129 300 THE NAUTILUS Subulina Subemarginula 53: 38 octoradiata 38: 62; 39: 87 tricarinata 60: 55 subexpansum, Epitonium (Sthenorhytis) 45: 9, pi. 1 subexpressus, Ischnochiton 58: 101 subfusca, Helicina 41: 22 subfuscus, Arion 38: 72; 40: 72; 50: 134 subgibbosus, Crassatellites 46: 10 subglobosa, Anculosa 35: 10-2; 43: 11-3; 46: 38; 53: 75; 56: 132 subglobosa, Paludina 44: 36 subglobosa, Viviparus 44: 36 subglobosus, Somatogyrus 44: 46 subgranum, Spiraxis (Versutaxis) 53: 51, 93, pi. 9 subhybridus, Drymaeus 57: 125 subimbricata, Anomalocardia 56: 79 subimbricata, Chione 56: 79 subimbricata, Venus 46: 109 sublaevis, Auris, see A. distorta s. sublaevis, Lucidella, see L. adamsiana s. sublirata, Melania 42: 29 sublucerna, Pleurodonte, see P. fusco- labris s. subemarginata, Helicina 38: 60; 40: 90 submarmorea, Tonicella 38: 28 subnitidus, Spiraxis (Rectaxis) 53: 51, 93, pi. 9 subnodosus, Pecten 37: 127; 46: 113; 52: 43, 45 subobsoleta, Glycymeris 43: 109 subobsoleta, Leptothyra 59: 104 subopeas, Spiraxis (Versutaxis) 53: 52, 89, 93, pi. 9 suborbiculata, Anodonta 36: 98; 39: 91; 51: 48 subovata, Streptostyla, see S. nicoleti s. subpalliata, Polygyra 51: 136 subplana, Omphalina 46: 59 subplanus, Mesomphix 40: 136; 46: 91 subplanus, Mesomphix (Micromphix) 47: 70, pi. 7 subplicata. Helix 35: 98 subpuella, Helicostyla (Corasia) 57: 18 subpurpurea, Paludina 51: 49 subpurpureus, Viviparus 44: 70; 55: 87-8 subpurpureus haleanus, Viviparus 55: 87-8 subpurpureus texanus, Viviparus 55: 87 subpyraniidalis, Hyalosagda (Aerotrochus) 48: 135; 49: 52 subquadrata, Acanthodoris 39: 49 subquadrata, Cardita 36: 18; 37: 41; 44: 92 subrimata, Vitrea 45: 36 subrostrata, Lampsilis 36: 100 subrostrata, Ligumia 36: 100; 39: 92; 53: 137-8 subrotunda, Carinifex, see C. newberryi s. subrotunda, Fusconaia 40: 66 subrotunda kirtlandiana, Fusconaia 40: 66 subrotunda, Lanx 38: 73 subrotunda, Obovaria 40: 66; 44: 130 subrotunda lens, Obovaria 40: 66 subrotunda, Unio 37: 135, 137 subrotundum, Pisidium 37: 30; 40: 27-8, 62; 42: 96; 48: 48 subrotundum concinnulum, Pisidium 40: 51-2 subrotundata, Lanx 38: 75 subrotundus, Lanx 38: 75 subrudis, Oreohelix 47: 3; 49: 69; 50: 13 subrugosa, Anomalocardia 37: 129; 52: 44; 56: 78 subrugosa, Venus 45: 78 subrupicola, Hyalina 43: 96, 122, 143 subrupicola, Polita 37: 132 subrupicola, Pristiloma 43: 123-4; 45: 84, 86 subrupicola spelaea, Vitrea 43: 96, 123 subsinuatus, Mycetopus 36: 8-9 subsolidum, Campeloma 41: 92; 47: 147; 54: 8; 58: 117 subspinosum, Camptoceras 44: 80 substriata, Helicina, see H. fasciata s. substriata, Tegula (Omphalius) 46: 120 substriata. Vertigo 40: 106 substriatum, Cardium 36: 33; 37: 41 substriatum, Chlorostoma 46: 120 substriatum, Eulithidium 36: 18 substriatus, Musculus 35: 31; 40: 23 substriata, Melania 43: 10; 54: 65 subsulcata, Neritina 50: 44-5 subtentus, Unio 51: 48 subtenuis, Barleeia 37: 43; 42: 1,3 Subterenochiton 39: 36 subtilis, Spiraxis (Rectaxis) 53: 50-1, 93, pi. 9 subtilis vitreus, Spiraxis (Rectaxis) 53: 50, 93, pi. 9 subtransversum, Musculium 59: 21 subtrigona, Gibberula 58: 100 subtrigona, Marginella 36: 34 subtruncata, Mactra (Spisula) 58: 24 subtruncatuni, Pisidium 40: 27; 42: 23; 52: 81 subturrita, Odostomia (Amaura) 37: 42 subtussulcata, Cepolis (Jeanneretia) 40: 88; 47: 21-2 subulatus, Limnaeus 53: 139 Subula 37: 61-2 subula, Melania 49: 76 subula, Opeas 58: 85 subulare, Pleurocera 38: 44 subulata, Cerithiopsis 58: 61 subulata, Laevoleacina 40: 90 subulata, Terebra 37: 62 subulatum, Buccinum 37: 51 subulatum, Terebellum 60: 55 Subulina 40: 134, 143; 42: 70 metcalfei 36: 122 301 Subulina I^fDEX TO octona 35: 119, 121; 39: 2, 144; 40: 90, 133-4; 41: 32; 44: 140; 49: 25; 56: 7; 57: 48 Parana 39: 144 urichi 58: 89 subulinus, Spiraxis (Volutaxis) 53: 90-1, 93, pi. 11 subviridis, Lasaea 56: 31 succinata, Chione 36: 33;'37: 41; 52: 44 succincta, Margarites (Lirularia) 50: 49 succinctus, Conus 41: 44-5 Succinea 38: 56, 58-9, 81, 123, 130; 39: 3, 125; 40: 77, 106, 134; 41: 42; 42: 35, 36, 120; 43: 38; 44: 110; 45: 58; 47: 20, 116; 48: 46; 49: 6; 50: 10, 31, 71-2, 135; 53: 132; 54: 55; 55: 67-9, 102; 56: 92-3, 95; 58: 63, 78, 127 alaskana, see rusticana a. appendiculata 50: 139 arenaria 43: 62; 53: 133 aurea 60: 100 avara 36: 25, 36; 37: 66, 79, 106; 38: 11, 42, 65, 93, 13d; 40: 48, 55, 59, 114, 119; 41: 20, 142; 42: 16, 59; 43: 42-4, 55, 59-60, 68, 82, 119, 133; 44: 17, 45, 74, 88; 45: 116; 48: 57, 116; 49: 6; 50: 13-4; 51: 63, 106; 52: 15, 96; 53: 87; 54: 19, 32, 117; 55: 143; 56: "54, 62; 58: 78; 59: 28 avara major 48: 57 barbadensis 37: 33; 38: 58, 62; 39: 43 caduca 37: 3; 38: 80 campestris 37: 66; 38: 62; 54: 69 campestris unicolor 42: 20 chittenangoensis, see ovalis c. chyrsis 38: 11, 123; 46: 128; 53: 64, 131-3 concordialis 47: 21; 49: 6 decampii 41: 136 effusa 41: 54 floridana 37: 66, 69; 41: 53; 52: 130 fultonensis, see retusa f. gabbi 48: 47 gelida, see grosvenori g. groenlandica 39: 32; 54: 74; 60: 108 grosvenori 40: 118-9; 41: 20; 42: 16, 94, 125; 43: 35, 82; 44: 22; 46: 128; 49: 6, 7, 10; 53: 64, 77-8, 133; 57: 131-2 grosvenori gelida 40: 118-9; 41: 136; 44: 22 gyrata 39: 43 hawkinsi 40: 4, 59 haydeni 41: 20, 93; 45: 116: 47: 9; 48: 47; 50: 99 helicina 43: 37 karaftoensis, see lauta k. latior 56: 8 lauta karaftoensis 41: 40 lineata 50: 98-9 lumbalis 38: 82 luteola 38: 42, 62; 47: 16, 21 major, see avara m. manaosensis 39: 2, 79, pi. 4 nuttallana 48: 47 oblonga 52: 142 ochracina 38: 58, 62 optima, see ovalis o. oregonensis 48: 33, 47; 57: 131-2 ovalis 36: 25; 38: 93; 39: 125; 40: 48, 59, 114, 117-8; 41: 34; 42: 16; 43: 42-3, 82, 119, 133; 44: 88, 129; 45: 34, 116; 48: 59; 49: 6, 10; 52: 96; 53: 87; 55: 14-5, 67; 56: 92-5; 57: 136; 58: 25-6; 59: 28, 92 ovalis chittenangoensis 40: 118 ovalis optima 55: 67; 58: 110 ovalis pleistocenica 40: 117-8 peoriensis 59: 28 pfeifferi 43: 62; 50: 10, 134; 53: 133 pleistocenica, see ovalis p. putris 43: 62; 50: 133-4; 53: 133 recisa 57: 47 retusa 36: 25; 38: 11; 40: 48, 55; 41: 136; 42: 15, 59, 135: 43: 42, 81, 119; 44: 45, 88; 47: 9, 21; 48: 59; 49: 6; 50: 117; 53: 87; 54: 88-9; 55: 14-5; 58: 78; 59: 92 retusa fultonensis 41: 136 rotundata 38: 79 rusticana 48: 47 rusticana alaskana 53: 64 sanibelensis 47: 20-1, pi. 3 sillimani 48: 33 unicolor, see campestris u. vermeta 40: 55, 119 verrilli 40: 114, 119; 43: 134 succinea, Neritilia 47: 50; 50: 109; 51: 40; 54: 24-6, 66 succinea, Truncatella, see T. cari- baeensis s. succissa, Fusconaia 36: 73-4 succissa, Quadrula 36: 73 sufflatus, Bulimulus 46: 75 suffusa. Trivia 39: 86; 56: 17 suifuensis, Viviparus 59: 64, pi. 7 sulana, Helicostyla, see H. turbinoides s. Sulcastrum 43: 93; 44: 143 sulcata, Anculosa 58: 42 sulcata, Ceriphasia 43: 10 sulcata, Circe 60: 57 sulcata, Corbula 40: 42-4; 55: 142 sulcata. Natica (Stigmaulax) 54: 71; 55: 45 sulcata, Periploma 57: 36 sulcata, Pyramidella 36: 122 sulcatum, Sphaerium 35: 109, 114; 36: 25: 37: 30; 39: 123; 40: 29, 62; 41: 84; 42: 53; 43: 93-5; 44: 143; 52: 15; 54: 144; 57: 45-6, 94-6; 59: 29, 84 sulcatum crassum, Sphaerium 57: 95 302 THE NAUTILUS Systrophia sulcatum dakotense, Sphaerium 43: 95 sulcatum decisum, Sphaerium 57: 95 sulcatum ellipticum, Sphaerium 57: 95 sulcatum lineatum, Sphaerium 57: 95 sulcatum planatum, Sphaerium 43: 95; 57: 95 sulcatum sculptum, Sphaerium 57: 95 sulcatus, Potamides 49: 79 sulcatus, Unio 51: 48 sulcidentata, Cypraea 36: 122; 42: 144; 50: 52, 81; 52: 3; 55: 2; 57: 23-4 sulciferus, Spiraxis (Volutaxis) 53: II, 14, 89-90, 93, pi. 4 sulcirerus atoyacensis, Spiraxis (Voluta- xis) 53: 89, 93, pi. 11 sulciferus berendti, Spiraxis (Volutaxis) 53: 93 Sulcobasis -- subgenus of Chloritis Sulcocypraea concinna 40: 18 dalli 40: 18 healeyi 40: 18 kennedyi 40: 18 lintea 40: 18 mathewsonii 40: 18 vaughani 40: 18 sulcosa, Cassidea 52: 77 sulcosa, Cassis 52: 73-4, 77 sulcosa abbreviata. Cassis 52: 73 sulcosa centiquadrata. Cassis 52: 44 sulcosa inflata, Cassis 52: 73, 76-7 sulcosa, Melania 42: 31 sulcosa, Odostomia 35: 32 Sulcosipho -- subgenus of Neptunea Sulcospira 53: 36 sulcospira 49: 78 sulcospira, Sulcospira 49: 78 Sulcularia -- subgenus of Lasmigona sulculosa, Paludina 48: 143 sulculosa. Varicella (Vagavarix) 55: 28, pi. 2 sultana, Helix 59: 30 sultana, Orthalicus 57: 47 sumassi, Lymnaea 41: 24 suniichrasti, Averellia 36: 36 sumichrasti, Xanthonyx 56: 39-40 summa, Lacteoluna 56: 5 Sunetta excavata 49: 2 hians 36: 108 olivacea 52: 46 superba, Endodonta 41: 128 superba, Placiphora 58: 102 superiorensis.Lampsilis 38: 10-1; 39: 122 superiorensis, Unio 40: 3 supinum, Pisidiuni 35: 107, 112, 115; 36: 40; 40: 26; 42: 23, 25 suppressa, Ethalia 59: 82 suppressa, Gastrodonta 40: 48 suppressus, Cyclostremiscus 59: 82, pi. 8 suppressus, Ventridens 53: 47, 86 suppressus virginicus, Ventridens 53: 85 suppressus, Zonitoides (Ventridens) 48: 80; 49: 99-100; 54: 114 suppressus virginicus, Zonitoides 49: 99, 100 supracarinata, Valvata 35: 24 supralirata, Ala'ba 35: 85 supranitidus, Adeorbis 58: 61 supranitidus lirata, Adeorbis 56: 144 suprema, Nucula (Adrana) 48: 11/ suprema, Nuculana 48, pi. 6 Surcula -- subgenus of Turris Surculites carpenterianus 60: 90 Surinamia 47: 71-2 -- subgenus of Asolene surgeonella, Patella' 37: 51 surinamensis, Euglandina 57: 47 suteri, Pecten (Chlamys) 47: 63 sutherlandiana, Fadyenia, see F. baqui- eana s. suturalis, Melania 54: 64 suturalis, Partula 37: 110, 112, 115 suturalis, Poteria (Crocidopoma) 48: 87; 49: 99 suturalis, Varicella, see V. denticulata s. suturamarginata, Odostomia 50: 108 swainsoni, Trochomorpha 36: 17 swainsonii, Mitra 48: 90 swifti, Haplocochlias 46: 120 swifti, Proserpina 36: 84 swiftiana, Corbula 52: 28 swiftianus, Obeliscus 37: 33 swiftii, Achatinella 43: 130 swiftii, Pecten 50: 24-5, 92 Swiftopecten 50: 24, 26 Sycotypus 52: 90-1 sylvia, Oliva, see O. erythrostoma s. symmetrica, Goniobasis 45: 59 Symmetrogephyrus 39: 47-8, 76; 50: 142 Symmorphomactra -- subgenus of Spissula Symphynota complanata 36: 97; 44: 90 compressa 36: 97; 43: 90-1 costata 36: 97; 44: 90 Symplectoteuthis oualaniensis 46: 44 Synaptocochlea nigrita 53: 20, pi. 6 picta 53: 20 Syncera 36: 35, 99: 54: 119 hepatica 54: 119 translucens 37: 43; 42: 2 Syncera Hepatica, Nerita 54: 119 syngenes, Pupilla 43: 55, 57; 45: 117; 54: 31 syngenes dextroversa, Pupilla 42: 124; 43: 57: 44: 114; 45: 117; 54: 30, 117 Synopeas 58: 85, 88, 92 beckianum 53: 93; 58:85, 91 caracasensis 58: 85 syriaca, Janira 50: 58 syriacus, Chlamys (Aequipecten) 50: 58 syrmatophora, Mya 37: 51 syrmatophorus. Prisodon 39: 3 Syrnola 48: 130; 53: 43 fusca 48: 130 producta 48: 130 Syrnolopsis 38: 111 Systenostoma 36: 63 systropha, Systrophia 41: 124 Systrophia 38: 88; 41: 124-5 303 Systrophia INDEX TO (Entodina) exigua 41: 125 reyrei 41: 125 starkei 41: 125 systropha 41: 124 Systrophiella 38: 87; 39: 34; 41: 125 -- subgenus of Scolodonta Szeremensis, Pecten (Chlamys) 50: 27 tabacea, Anomia 37: 51 tabalasensis, Helicina, see H. ignava t. tabanula, Mitra 36: 122; 60: 56 tabogaensis, Anachis 45: 143 tabogaensis, Engina 45: 143 tabulata, Goniobasis 41: 60 tabulata, Mangelia 58: 100 tabulata, Melania 41: 60 tabulatus, Chrysodomus 60: 90, 93 Tachyrhynchus erosa 39: 133 erosus major 38: 26 lacteolus 38: 26 major, see erosus m. reticulatus 39: 133 taeniata, Anculosa 58: 41-3 taeniata lucida, Anculosa 58: 42 taeniata, Partula 37: 116; 47: 114 Taenioraphe 56: 82 tageliformis, Macoma 54: 21 Tagelus 37: 129; 38: 51 californianus 36: 33; 37: 41; 53: 108 divisus 42: 84; 43: 64; 49: 119; 58: 59 dombeyi 37: 129 gibbus 41: 15; 42: 84; 43: 64; 54: 21; 56: 142; 58: 59; 60: 19 Taia 56: 128 Taihua 58: 135 Talityphis 54: 36 talpa, Cypraea 36: 122; 50: 81; 51: 3; 52: 7, 104-5; 55: 2; 57: 83-5; 58: 132 talpa, Odostomia (Amaura) 38: 26; 51: 102 tamaulipensis, Euglandina, see E. ob- longa t. tamaulipensis, Lamellaxis 53: 93 Tamayoa 38: 88; 39: 34; 41: 126 trinitaria 41: 126 Tamayops 41: 126 tampaensis, Crassispira 53: 81 tampaensis bartschi, Crassispira 53: 81 tampaensis, Tellina 37: 54; 54: 21 Tampsia 36: 67 tangi, Hemimitra 57: 19, pi. 6 tangi, Hypsobia 55: 16-7 tankervillii. Eutrochatella 48: 63 tannaisii, Vaginulus 42: 47 tannum, Campeloma 54: 12, 14-6, pi. 1 tantila, Lucidella 37: 69 tantilla, Psephis 36: 18 tantilla, Transennella 37: 41; 53: 22 tantillus, Neoplanorbis 58: 14 Tanychlamys 57: 31 indica 57: 31 Tapes grata 45: 79 philippinarum 37: 4; 40: 80 taphria, Leda 60: 91 taphria, Nuculana 44: 92 tappaniana, Gastrocopta 50: 98; 51: 131; 53: 88 -- see also G. pentodon t. Taranis 57: 107 amoena 57: 107 mbrchi 57: 107 Taras 52: 28 punctata 49: 117 vesicula 60: 57 tarda, Ferrissia 41: 93; 42: 59, 133-4; 44: 89; 48: 59; 54: 8 Targionia 42: 138 tartanella, Drepania 45: 32 Tasmancylus 39: 115 tatei, Tropicorbis 54: 97 taunaisii, Vaginula 39: 17 taunaisii, Vaginulus 39: 13; 41; 129; 42: 47 taunaysi, Vaginulus 39: 13 tauroperstriata, Chlamys 50: 55 tauroperstriata das-guptai, Pecten (Chlamys) 50: 55 taylori, Amnicola 40: 108 taylori, Berendtia 46: 110 taylori, Paludestrina 60: 86 taylori, Pristiloma 43: 96, 122 taylori, Turbonilla 51: 124 tayloriana, Helix 49: 89 tayloriana, Papuina 49: 88-90 techella, Lymnaea 40: 17 -- see also L. bulimoides t. techella, Stagnicola, see S. bulimoides t. tectum, Modulus 55: 2 Tectarius 38: 56-7; 40: 39: 53: 36; 56: 36 muricatus 35: 120-1; 38: 62; 55: 33 Tegula (Omphalius) aurotinctus 37: 43 (Chlorostoma) brunnea 44: 93; 50: 49 californica 47: 47 fasciata 58: 39 (Chlorostoma) funebralis 47: 53; 50: 49; 53: 22 (Chlorostoma) gallina 37: 43 (Chlorostoma) gallina umbilicatum 37: 43 (Omphalius) hotesseriana 46: 120 impressa 52: 46 (Omphalius) ligulatus 37: 43; 50: 49-50 mariana 52: 46 melaleuca 37: 126 (Chlorostoma) montereyi 50: 49 panamensis 37: 126 (Promartynia) pulligo 50: 49 regina 59: 125 rubroflammulatum 52: 46 rugosa 47: 47 semigranosa 53: 38 smithii 37: 126 (Omphalius) substriata 46: 120 umbilicata, see gallina u. undatella 49: 2 viridula 37: 126; 52: 46 tegula, Alectrion 36: 34 tehamaensis, Polygyra 44: 18 teilhardi, Ancylus 46: 68 Teinostoma 58: 142-3; 59:1-3, 7-8 , 77-8, pi. 1: 60: 17 304 THE NAUTILUS Tenellum anomalum 59: 1 biscaynense 59: 3, 5, pi. 1 (Climacia) calliglyptum 59: 77; 60: 12 carlnatum 59: 3 i carinicallus 60: 17-8, pi. 2 clavium 59: 2, 4, pi. 1 cocolitoris 59: 2, 8, pi. 1 cryptospira 59: 2 funiculus 60: 17 goniogyrus 59: 2, 3, pi. 1 incertuni 59: 2, 7, pi. 1 lerema 59: 3, 6, pi. 2 lituspalmarum 59: 2, 7, pi. 2; 60: 18 nesaeum 59: 2, 5, pi. 1 obtectum 59: 3, 6, pi. 1 ochsneri 60: 18 parvicallum 59: 3, 4, pi. 2 pilsbryi 58: 142; 59: 2, 3, 77, 80, pi. 1 politum 59: 1 reclusa 59: 5 semistriata 59: 2 teisseirei, Odontostomus 44: 33 tejonis, Helminthoglypta, see H. traski t. telescopium, Odostomia (Chrysallida) 55: 122 tellenoides, Sanguinolaria 52: 46 Tellidora cristata 58: 59 tellimyalls, Petricola 56: 142 tellimyalis, Psephis (Petricola) 59: 103 Tellina 36: 110; 40: 72; 45: 74, 109; 46: 76; 59: 74 aequistriata 58: 59 agilis 45: 111 alternata 38: 94; 43: 35; 51: 94; 58: 59 angulosa 60: 19 balaustina 37: 46 balaustrina 37: 46 bodegensis 43: 50; 44: 92 brevifrons 51: 94 (Oudardia) buttoni 37: 41; 44: 92 (Phyllodina) cala 51: 66 candeana 49: 119 (Angulus) carpenteri 37: 41; 44: 93 crassiplicata 55: 2 cremor 37: 47 cruenta 49: 140 cruentae 49: 140 crystallina 37: 129 dispar 40: 81 dodona 51: 66 ellicensis 60: 57 elucens 45: 111 fabula 37: 48 flagellum 53: 80 fucata 37: 48 georgiana 59: 35-6 glabra 37: 48 guildingi 54: 71 interrupta 49: 119; 52: 28 iris 49: 119 Jeffreys! 45: 109 liana 58: 105, 145 lineata 37: 55: 39: 84: 60: 19 lutea 47: 102 (Eurytellina) mantaensis 56: 80, pi. 8 martinicensis 49: 119 mera 51: 94 moeropsis 52: 46 nitida 59: 35 obliquilineata 40: 81; 60: 57 omoia 45: 111 panamanensis 58: 145 panamensis 58: 105, 145 paziana 55: 121 (Tellinella) perryae 49: 136, 139; 51: 66 perula 60: 57 polita 51: 94 promera 49: 119 radiata 37: 50; 49; 119; 58: 37; 59: 36 radicata 37: 50 remier 37: 51 remies 37: 51 robusta 41: 102 Albescens 37: 129 rubella 60: 57 rubricata 53: 79 rugosa 37: 3 salmonea 43: 50 sayi 49: 119 scobinata 60: 57 staurella 60: 57 striosa 37: 51 strophia 49: 136 tampaensis 37: 54; 54: 21 tenella 36: 60; 45: 109-11; 56: 142 (Angulus) tenera 38: 50; 45: 109-11; 54: 21; 56: 61, 142; 58: 59; 59: 97 tenta 41: 15; 51: 94 tenuis 51: 94 tigerina 37: 51 (Scissula) varilineata 56: 79, pi. 8 versicolor 36: 60; 45: 111; 52: 28; 56: 144 virginica 59: 86-7 Virgo 56: 79, pi. 8 Tellinella -- subgenus of Tellina tellinoides, Cumingia 53: 19-20; 58: 59 tellinoides vanhyningi, Cumingia 53: 19, pi. 6 tellinoides, Nuculana 53: 17 telonaria, Hua 57: pi. 6 telonaria, Melania 57: 21 templetoni, Schloenbachia 43: 23, 25, pi. 2 Tenacipes 44: 133 -- subgenus of Veroni- cella tenax, Veronicella (Tcnacipes)44: 1 31 . 133-4 tenebricosta, Neritina 54: 25 tenebricosus, Anodontitcs 55: 94 tenebricus, Unio 37: 138-9 tenebrosa, Littorina 39: 40 -- see also L. rudis t. tenebrosa, Oliva 42: 9 tenella. Area 60: 56 tenella, Tellina 36: 60: 45: 109-11; 56: 142 tenellum, Spirostemma 49: 57 tenellum tenerum, Spirostemma 49: 57 305 Tenellus INDEX TO tenellus, Angulus 45: 109 tener, Angulus 45: 109 tenera, Cancellaria (Trlgonostoma) 39: 85 tenera, Lima 44: 126 tenera, Tellina (Angulus) 38: 50; 45: 109- 11; 54: 21; 56: 61, 142; 58: 59; 59: 97 tenera roperi. Varicella 49: 26 tenerrima, Paphia 43: 120; 44: 48-9 tenerrima alta, Paphia 44: 48-50 tenerrimum, Zaphysema 48: 136; 49: 24, 54 tenerum, Sphaerium, see S. striatinuni t. tenerum, Spirostemma, see S. tenellum t. Tengchiena 56: 41 rathouisii 56: 41, pi. 6 tennesseense, Trypanostoma 41: 59 tennesseensis, Polygyra, see P. triden- tata t. tenta, Macoma 36: 60; 45: 111; 57: 31, 59 tenta, Tellina 41: 15; 51: 94 tentaculata, Bithynia 40: 69, 100; 44: 46; 46: 2, 69, 141 tentaculata, Bythinia 50: 134; 53: 103; 54: 6, 8; 59: 110 tentaculata. Helix 54: 66 tentaculatus, Bulimus 46: 141; 52: 61 tenue, Buccinum 39: 134 tenue californiense, Helisoma 47: 140 tenue chapalense, Helisonn-a 54: 17; 59: 21 tenue, Sphaerium 38: 10; 40: 29, 62 tenuecostatus, Spiraxis 53: 14, 91, 93-4 tenuecostatus obesus, Spiraxis (Volutaxis) 53: 91, 94, pi. 11 Tenuiactaeon 35: 136 tenuicarinata, Goniobasis 50: 127 tenuicarinata whiteavesi, Goniobasis 44: 33 tenuicostatus, Pecten 38: 112; 50: 55-6 tenuidens, Bothriopupa 48: 88; 57: 48 tenuilirata. Patella 38: 121 tenuiliratum, Chondropoma 38: 61 tenuipilus, Lagochilus 55: 43 tenuis, Cyclinella 58: 58 tenuis, Helicina 48: 10 tenue, Helisoma 47: 86, 140-2 tenuis, Nucula 35: 31; 38: 24; 40: 22 tenuis, Physa, see P. canadensis t. tenuis applanatus, Planorbis 54: 97 tenuis pertenuis, Planorbis 54: 97 tenuis, Potamides 56: 22 tenuis, Spiraxis 53: 14, 91 tenuis, Stoastomops 48: 63 tenuis, Tellina 51: 94 tenuis, Thaumastus, see T. limnaei- formis t. tenuis, Trochatella 48: 10 tenuisculpta, Acmaea 45: 23 tenuisculpta, Neptunea 38: 25 tenuisculpta, Odostomia 36; 18; 37: 42 tenuisculpta, Odostomia (Evalea) 50: 48 tenuisculpta, Parvilucina 38: 24 tenuisculpta, Phacoides (Parvilucir.a) 37: 41 tenuisculpta, Scurria, see S. mitra t. tenuisculpta, Tritonalia 52: 10 tenuisculptus, Trophon 52: 10-1 tenuissima, Volvulella 59: 104 tenuissimum, Pisidium 35: 112 ; 39: 124; 40: 50, 56; 59: 26 tenuissimus, Bulimulus 39: 2, 4, 108 tenuistriata, Urocoptis 45: 96-8 tenuistriata clenchi, Urocoptis 45: 97 tenuisulcata, Leda 35: 31; 40: 22 Terabralia 53: 36 Terebella lapidaria 60: 26 terebella, Spiraxis (Repressaxis) 49: 25; 53: 11, 16, pi. 5 Terebellum subulatum 60: 55 Terebra 37: 61-2; 44: 26; 45: 81; 46: 76; 52: 109; 59: 74; 60; 27 aciculata 37: 63 acrior, see limatula a. albocincta 52: 46 albula 36: 123 basteroti 37: 62 chlorata 55: 2 (Hastula ) cinerea 39: 84 (Terebrina) cingulifera 37: 63 circumcincta 37: 63 clappi 36: 123 coerulescens 37: 62 concava 58: 62 cracilenta 58: 28 crenulata 36; 123; 55: 2 dimidiata 37: 62; 60: 56 dislocata36; 123; 37: 53, 55; 58; 62 duplicata 37: 63-4 (Myurellisca) duplicatoides 37: 63 flammea 51: 114, pi. 9; 52: 109; 53: 7-8 geniculata 37: 63 glossema 53: pi. 12; 56: 65. pi. 6 gouldii 55: 2 incomparabilis 53; 7 inconstans 36; 123 lanceata 37; 63 lanceata oahuensis 36; 123 langfordi 36; 123 lauta 36; 123 limatula acrior 46: 117 luctuosa 45: 75; 52: 46 maculata 36: 123: 37: 63; 55: 2 muscaria 60: 56 niyuros 37: 62 (Punctoterebra) nitida 37; 63 nodulare 36: 123 oahuensis, see lanceata o. pertusa 36: 123 robusta 53: 7 spauldingae 55: 2 spinulosa 37; 62 straminea 36: 123 strigata 37: 123 strigillata 37; 62 subulata 37; 62 texana 53; 7-8 triseriata 37; 63 306 THE NAUTILUS Thais terebra, Camptoceras 44: 80 terebra, Conus 60: 56 terebra, Lymnaea, see L. palustris t. terebracformis, Varicella, see V. impressat. Terebrina 37: 62-3 -- subgenus of Terebra terebrina, Fusus 37: 63 Teredo 36: 67; 38: 144, 43: 104; 5C: 15; 60: 26, 53 beachi 36: 140; 37: 31-2 bensoni 60: 53 diegensis 60: 53 fuller! 60: 53 furcillatus 38: 144 gregoryi 60: 53 (Teredops) hawaiensis 58: 55 (Neoteredo) healdi 45: 36 milleri 58: 55-6 morsei 37: 32 navalis 36: 67-8, 140; 37: 31-2; 42: 108; 56: 61, 143: 58: 60 novangliae 37: 32 parksi 52: 118 samoaensis 38: 144 trullifermis 38: 144; 58: 55; 60: 53 Teredops 35: 61 -- subgenus of Teredo Teredora 35: 61 Teredothyra 35: 61 tereinus, Pecten (Euvola) 38: 115-6 teres, Cypraea 57: 82-3, 85; 58: 106 teres, Goniobasis 56: 132 terminalis, Hemimitra 57: 20 terminalis, Vitrinella 60: 17, pi. 2 terpsichore, Columbella 45: 52 terplicata, Mitra 45: 54 -- see also M. lineata t. teslaensis, Cerithium 43: 25, pi. 1 tesselata, Anoma 58: 31 tesselata cinerea, Anoma 49: 57 tesselata, Cancellaria 37: 123 tesselata, Nerita 35: 121; 38: 61; 39: 86; 54: 22, 67 tessellata, Cassis 52: 75 tessellata, Columbella (Anachis) 45: 143 tessellata, Cvpraea 36: 122; 40: 81; 42: 143-4; 50: 52, 81; 55: 2; 57: 23-4 tessellatus, Fusus 60: 108 tessellatus, Latirus 50: 22 tessellatus seminolensis, Latirus 49: 139; 50: 22 tessellatus, Neopetraeus 57: 88 Tesseracme 47: 146 testa-ovi. Helix 42: 141 testacea, Agaronia 45: 74-6; 48: 4; 57: 5 testiculis. Cassis 51: 34 tcsticulus. Cassis 53: 38 testudinalis, Acmaea 35: 86; 39: 131; 41: 109-15: 42: 38-9, 103; 46: 103; 54: 5; 56: 58, 106; 58: 137-8, 141 testudinalis alveus, Acmaea 42: 103 testudinalis amoena, Acmaea 35: 86; 41: 109 testudinaria, Cypraea 51: 3; 52: 7, 105; 57: 84-5 testudineum, Chondropoma (Parachondria) 48: 65 testudineus, Liguus 38: 61 testudineus castaneus, Liguus 60: 72 testudineus ornatus, Liguus 60: 72 testudineus versicolor, Liguus 60: 72 testudinis, Pleurotoma 36: 132 testudo, Buccinum 52: 77 Tethys 35: 54-5; 60: 26 angasi 38: 34 californicus 53: 34 fimbria 37: 48 perviridis, see willcoxi p. willcoxi 35: 80; 50: 95-7; 58: 62-4 willcoxi perviridis 58: 62-4 Tetrentodon 42: 141 tetralasmus, Unio 36: 127-8; 51: 49; 53: 137-8 tetralasmus camptodon, Uniomerus 52: 15 tetrica, Angasia 58: 101 tetrica, Lima 46: 75; 52: 45 tetrodon mutator, Ashmunella 54: 110 texana, Cochliopa 48: 91-2, 113-4 texana, Humboldtiana 41: 82; 44: 13 texana, Terebra 53: 7-8 texanus, Microceramus 47: 79 texanus, Viviparus, see V. subpurpureus t. texasensis, Carunculina 39: 12, 92; 50: 104; 53: 137-8 texasensis, Polygyra, see P. texasiana t. texasensis, Unio 36: 128 texasiana, Euglandina 49: 97 texasiana angustior, Euglandina 49: 97, pL 7 texasiana. Pilar 54: 21 texasiana, Polygyra 40: 16; 42: 66; 47: 16- 7, 79; 49: 100-1: 53: 105 texasiana hyperolia, Polygyra 38: 40 texasiana texasensis, Polygyra 38: 40, 92; 47: 17 texasiana, Strobilops 35: 91: 47: 16; 51: 128 -- see also S. labyrinthica t. texasianum, Dentalium 58: 60 texoloensis, Spiraxis 52: 133 textile, Conus 36: 121; 49: 41; 57: 72 textilina, Oliva 42: 7-8 textilis, Amastra 38: 79 textilis, Chemnitzia 6u: 71 textum, Chondropoma 47: 107 textum booneae, Chondropoma (Chondro- pomorus) 47: 107 thaanumi, Alaeocyma 36: 121 thaanumi, Liocerithium 36: 122 thaanumi, Mitra 36: 122 thaanumi, Ostrea 52: 118 Thaanumia 45: 125-6 Thais 35: 119; 36: 51: 38: 56; 41: 6, 76; 43: 46-7, 72; 45: 76, 82, 108; 47: 102; 54: 146: 56: 103; 60: 89 armigera 60: 55 biserialis 37: 121, 124; 43: 137; 46: 45: 52: 46 307 Thais INDEX TO brujensis, see coronata b. callaoensis 37: 124 (Nucella) canaliculata 50: 47 chocolata 37: 121, 124 clavigera, see tumulosa c. columellaris -46: 45 coronata 60: 61 coronata brujensis 60: 61 crassa 37: 124; 46: 45 deltoidea 38: 62 (Nucella) emarginata 38: 26; 50: 47 (Nucella) emarginata ostrina 50: 47 emarginata projecta 51: 124 floridana 38: 62; 41: 7-8, 141; 44: 68; 54: 20; 56: 103; 58: 61; 60: 34 floridana haysae 41: 6, 8; 43: 35; 44: 68, pi. 2; 56: 103; 60: 34 haemastoma 38: 62 harpa 40: 80; 58: 122 haysae, see floridana h. hippocastaneum 46: 112; 60: 55 hormica, see lamellosa h. imbricata 36: 69 -- see also lapillus i. kiosquiformis 37: 122, 124 (Nucella) lamellosa 38: 25; 41: 106; 50: 47; 54: 145-6 lamellosa hormica 51: 124 (Purpura) lapillus 36: 69; 39: 39, 134; 43: 45-8: 55: 72; 56: 59, 106; 57: 7; 58: 21, 137-8, 141-2 lapillus imbricata 39: 39 (Nucella) lima 38: 25; 50: 47 ostrina, see emarginata o. patula 35: 121; 38: 62; 46: 44-5; 52: 46 persica 60: 55 peruensis 37: 121, 124 planispira 46: 115 projecta, see emarginata p. triangularis 37: 124; 52: 46 triserialis 52: 46 tumulosa clavigera 49: 2 undata 35: 121; 38: 62 Thallicera 45: 106 Thalotia ramburi 58: 100 Thaumasia 40: 70 Thaumastus largillierti 43: 77 limnaeiformis 44: 33 limnaeiformis tenuis 44: 33 robertsi 57: 121 robertsi satipoensis 57: 121 satipoensis, see robertsi s. tenuis, see limnaeiformis t. (Scholvienia) weyrauch 57: 121 Thaumatodon -- subgenus of Endodonta thayerae, Phos 49: 139; 50: 20 thea carminura, Cymatosyrinx 52: 28 Theba 59: 118-9 latonia 50: 10 schrenckii 41: 43 Thecacera 45: 32 velox 45: 32 Thelidomus 44: 139-40 aspera 44: 139 striolata 44: 139 Thelidonta 44: 139 Thelodomus 44: 139 Thelodonta 44: 139 Thelydomus 44: 139 Themapupa 44: 108 Theodoxus 44: 34; 50: 109-13; 53: 36 cariosus 50: 10 doriae 50: 10 madacassina 50: 112 meleagris 54: 66 neglecta 60: 55 souleyetana 50: 112 theresa, Helicodiscus 41: 128 Thericium 54: 72 auricoma 54: 72 -- see also moenensis a. moenensis 54: 73 moenensis auricoma 54: 73 moenensis stantoni 54: 73 nassoide 36: 123 stantoni 54: 72 -- see also moenensis s. Thersites bipartita 41: 102 thersites, Angulyagra 56: 128 thersites, Siphonaria 38: 27 tholus, Climacia 59: 77-80, pi. 8 thomasi, Cyclostrema 59: 60 thomasi,01iva 48: 70 thomasi, Pecten 47: 62 thomasi, Rapana 40: 32 thompsoni, Tulotoma 44: 36 thorntonii, Goniobasis 42: 32 Thracia conradi 39: 29 curta 38: 24 myopsis 40: 23 truncata 35: 32 thraciaeformis, Yoldia 40: 23; 60: 91 thracioides, Mactra 48: 119-21, pi. 6 thracioides, Standella 48: 120 thurstoni. Helix (Pyramidula) 44: 33 thurstoni, Partula 44: 141 Thyasira bisecta 41: 129-31; 50: 91 croulinensis 40: 24 disjuncta 41: 129-30 gouldii 38: 24; 40: 24 plana 40: 24 Thyonicola 60: 108 mortenseni 60: 108 thyrae, Parviterebra 37: 106 thyroides. Helix 50: 98 thyroides, Polygyra, see P. thyroidus thyroides bucculenta, Polygyra 39: 74 thyroidus. Helix 51: 48 thyroidus, Mesodon 54: 142-3; 55: 9, 14, 97; 56: 71-2; 57: 44, 71, 136; 58: 25-6, 63. 110. 126-8; 59: 68; 60: 5, 79, 100 thyroidus bucculenta. Mesodon 54: 69 thyroidus, Polygyra 35: 64; 36: 144; 37: 107; 39: 28, 74; 40: 16, 47-8, 66; 43: 35. 43, 67; 44: 17, 44, 129; 46: 41, 88; 47: 308 THE NAUTILUS Torquatuni 148; 48: 24, 57, 82; 49: 100; 50: 119; 51: 50-4, 56, 58, 106; 52:29. 63. 96-7, 144; 53: 86 Thysanophora 38: 56, 58; 40: 105; 41: 144; 54: 56-7; 55: 74 boothiana 40: 90 hornii 38: 40; 41: 144; 42: 66; 47: 16- 7; 48: 116 hypolepta 37: 33; 38: 7 impura 54: 57 inaguensis 37: 69 ingersolli 37: 79 paleosa 41: 144; 54: 56 pilsbryi 36: 36 (Lyroconus) plagioptycha 37: 67-9; 40: 65; 41: 144; 49: 54 selenina 37: 33, 68 stigmatica 40: 90 vortex 38: 62 thysanoraphe, Choanopoma 48: 65 Tiara lineata 45: 54 tiara, Limax 37: 86 tiara, Turbo, see T. castaneus t. tiaratus, Conus 46: 45 tiburonensis, Vitrinella 55: 121, 124, pi. ticaonica iloilana, Helicostyla 45: 102, pi. 8 ticaonica vagans, Mitra 36: 122 tichostoma, Volvidens 48: 135 tigerina, Tellina 37: 51 tigrina, Codakia 38: 61; 60: 57 tigrina, Mitra 45: 54 tigrina. Turritella 52: 46 tigrinum, Cymatium 52: 45 tigris, Cypraea 37: 51; 40: 128; 49: 39- 41; 50: 82; 51: 3; 52: 5, 7, 104-5; 55: 2; 57: 83-5; 58: 132; 60: 55 tigris, Limax, see L. maxinius t. tigris, Pecten 50: 25 Timoclea -- subgenus of Chione tincta, Scalaria 55: 46 tinctorium, Epitonium (Asperoscala) 45: 113 tinctum, Epitonium (Nitidoscala) 37: 42; 45: 70-1; 50: 47, 50; 55: 46-7 tinctum, Epitonium (Nitidiscala) 50: 47, 50 tinctum bormanni. Epitonium (Nitido- scala) 55: 47 tinctus, Canthus 37: 55; 38: 94; 39: 85 tingamariae, Nenia 35: pi. 2 -- see also N. flachi t. tingitana, Helix (Alabastrina) 56: 104 tingitana lacticolor. Helix 56: 104 tingitana slessica. Helix 56: 104 tinianus, Conus 41: 44-5 tintinnabulum, Anculosa 35: 11; 43: 13 titicaccnse, Pisidium 38: 103 titicacensis, Ancylus 38: 103 tilicacensis, Planorbis 38: 103 titan perrini, Ostrea 43: 22, pi. 3 Tivela 41: 76; 55: 74 abaconis 49: 119; 53: 18 floridana 53: 18, pi. 6 mactroides 60: 19 planulata 37: 121-2, 129; 52: 46 stultorum 35: 134; 38: 68 tobagoensis, Engina 52: 45 todosina, Oliva, see O. sidelia t. tohiveana, Partula 37: 110, 112-6, 118 tollini. Epitonium 52: 34, pi. 1 tolmani, Pecten 43: 23, pi. 1 Toltecia 41: 144 tombigbeensis, Strophitus 36: 132 tomlini, Phasianella 35: 98 Tomlinula 47: 36 Tomocyclus 36: 15-6 gealei 36: 15 Tomopeas 48: 84; 58: 85, 89-90; 59: 105 -- subgenus of Lamellaxis tomotrema, Cyclophorus 55: 41 Tomura 60: 16, 36 -- also as subgenus of Vitrinella bicaudata 59: pl. 2 tonganum, Onchidium 51: 86 Tonicella lineata 38: 28 marmorea 40: 25 submarmorea 38: 28 Tonicia forbesi 52: 43, 46 incurvata 58: 102 nigropunctata58: 102 Tonites wascoensis 43: 96, 123 Tonna 43: 38; 49: 136; 52: 77; 58: 120 galea 58: 61 tonosiana, Nuculana (Adrana) 48: 117, pl. 6 torallyi, Drymaeus 57: 126 torallyi peruvianus, Drymaeus 57: 126 toreuma, Cellana 49: 2 toreuma, Fusus 43: 72 toreuma. Patella 38; 121 Torinia 54: 106 Tornatella 39: 104 bullata 46: 116 Tornatellides 39: 104 macromphala 38: 79, 83 procerulus 37: 3; 38; 79 Tornatellina 47: 60 impressa normalis 47: 60 pusilla 47: 60 Tornatellinops 47: 60, 62 Tornatelloides 39: 104; 47: 61 achatinoides 47: 61 Tornatina 35; 44; 38: 51 canaliculata 37: 54 carinata 35: 47 cerealis 35: 47 infrequens 35: 47 tornatus, Chrysodomus, see C. despectus t. torosa. Pseudomelatoma 44: 93; 50: 47. 49 torquata, Urocoptis 55: 70 torquatum, Pisidium 36: 39 309 Torquilla INDEX TO Torquilla 36: 64 torreana, Urocoptis 42: pi. 5 torrefacta, Sagda 48: 139 torrei, Aurinia 51: 37, pi. 4 torrei, Cepolis 47: pi. 3 torrei, Cepolis (Jeanneretia) 47: 22 torrei, Hydrobia 46: 120, pi. 6 torrei,Opisthosiphon 42: 98, pi. 5; 47: 131 torrei, Oxystyla 52: 93; 53: 7, pi, 2 torrei, Polydontes 52: 40-1, pi. 3 torrei, Urocoptis 42: 80 torrei, Vertigo 48: 34 Torrella immersum 40: 90 torsum, Sphaerium 57: 95 torsus, Unio 37: 136-7 torta, Melania 41: 58 torta, Pleurocera 41: 58 tortugana, Liotia 40: 140 tortuosa, Area 45: 104 tortus. Turbo 36: 15 torulosa, Dysnomia 40: 105 torulosa gubernaculuni, Dysnomia 40: 105 torulosa, Melania 52: 127 totostriatus, Streptaxis 41: 126 tottenii, Buccinum 40: 25 tottenis, Buccinum 39: 134 toucheana Hua 57: 21 townsendiana, Polygyra 41: 74 townsendiana brunnea, Polygyra 38: 144; 41: 74 Toxolasma lividum 37: 100-1 toyuca, Streptostyla 41: 21 Tozzettia 42: 138-9 Trachycardium egmontianum 58: 58 muricatum 58: 58 albus 38: 28; 40: 25 flectens 46: 124 gothicus 58: 100 (Cyanoplax) hartwegii 38: 28 perornatus 58: 100 ruber 38: 28; 40: 25 trachypepla, Polygyra 47: 12 Tralia (Alexia?) minuscula 40: 126 tranquebaricus, Pecten 50: 27 Transennella 47: 116 cubaniana 49: 1 18; 52: 29 stimpsoni 49: 119: 37: 54; 49: 119 tantilla 37: 41; 53: 22 transfuga, Haplotrema 44: 67; 51: 61; 54: pi. 9 transfuga, Haplotrema (Ancomena) 54: 131-2 transitoria, Pleurodonte, see P. niar- ginella t. translirata, Anachis, see A. avara t. transliratum, Buccinum, see B. angu- losum t. translucens, Drymaeus 47: 94 translucens, Syncera 37: 43; 42: 2 translucida major, Aperostoma (Cyclo- hidalgoa) 57: 47 translucidum, Pseudopeas 40: 143 Transolula 40: 18 transparens, Acmaea 58: 96 transversa, Area 36: 11; 38: 49; 39: 82; 41: 15; 43: 132; 49: 133; 54: 20; 56: 141; 58: 56 transversa, Paludina 55: 83 transversum, Amphidesma 51: 49 transversum, Musculium 35: 117; 39: 12; 40: 17, 30, 62; 42: 66; 52: 15; 54: 9; 58: 50 transversus, Donax 52: 45 trapesialis, Anodontites 39: 3 trapesialis darochai, Anodontiteb 53: 54 trapezialis, Anodonta 36: 7 trapezialis, Leila 36: 8 trapezina, Modiolarea 54: 91 Trapezium duperryi 40: 82 -- also as subgenus of Cypricardia trapezoidalis, Venus 60: 71 trapezoides, Anatina 40: 42 trapezoides, Plectomerus 39: 88 trapezoides, Unio 41: 131 traski tularensis, Epiphragmophora 52: 9 traski, Helminthoglypta 38: 55; 40: 140; 41: 32-4; 44: 43, 66, 86; 45: 29, 49; 51: 10, 13. 60 traski caelata, Helminthoglypta 51: 61 traski carpenter!, Helminthoglypta 45: 135 traski fieldi. Helminthoglypta 44: 66 traski isidroensis, Helminthoglypta 45: 49; 51: 61 traski misiona, Helminthoglypta 51; 60, pi. 4 traski pacoimensis. Helminthoglypta 45: 48, pi. 4 traski phlyctaena. Helminthoglypta 41: 77; 44: 66-7; 51: 15, 61 traski proles, Helminthoglypta 41: 78 traski tejonis, Helminthoglypta 54: 125 traskii tularica, Epiphragmophora 52: 9 traskii, Helisoma 47: 88-91; 58: 32 traskii, Helix 36: 13 traskii fieldi, Helminthoglypta 44: pi. 5 traskii proles, Helminthoglypta 52: 9 traskii, Lymnaea 40: 55; 41: 24, 119: 50: 115 traskii, Physa 37: 79; 45: 139; 47: 3 traskii, Stagnieola 48: 19 trautwiniana, Anodon 36: 9 traversensis, Triodopsis, see T. albo- labris t. tremperi, Opalia 51: 7; 60: 8 tremulina, Oliva 42: 7-8 tremulina albina, Oliva 42: 8 tremulina chrysoides, Oliva 42: 9 tremulina granitella, Oliva 42: 8 tremulina sericea, Oliva 42: 8 310 THE NAUTILUS Triodopsis Tresus maximus 38: 102; 45: 33 trialatus, Murcx 45: 77 triangularis, Acmaea 56: 42 triangularis, Thais 37: 124; 52: 46 triangularis, Unio 51: 48 triangulatus, Trophon 45: 66 triarata, Cingulina 50: 108 triarata, Turbonilla (Cingulina) 50: 108 tricarinata, Subemarginula 60: 55 tricarinata, Turritclla 41: 36 -- see also T. uvasana t. tricarinata, Valvata 35: 23-4; 36: 25; 38: 11; 40: 62; 41: 20, 120; 42: 18, 54; 43: 85; 44: 30, 46; 45: 118; 46: 20-1; 47: 9; 48: 109-10; 50: 114; 52: 128, 131; 53: 78, 140; 54: 8; 58: 6 tricarinata bakeri, Valvata 46: 20 tricarinata confusa, Valvata 46: 20 tricarinata infracarinata, Valvata 46: 20 tricarinata mediocarinata, Valvata 46: 21 tricarinata perconfusa, Valvata 41: 20; 42: 54; 46: 21 tricarinata simplex, Valvata 40: 50; 46: 20-1; 59: 29 Trichia striolata 51: 137 Trichodiscina 40: 65 -- subgenus of Averellia trichophorus, Lagochilus 55: 42-3 Trichotropis 54: 3; 56: 50 borealis 39: 133 borealis St. Johnensis 60: 70 cancellata 38: 26; 40: 78 insignis 38: 26 St. Johnensis, see borealis S. trlchroma, Oliva, see O. carneola t trichroma, Veronicella, see V. kraussii t. tricincta, Oxystyla, see O. ferussaci t. Tricolia compta 50: 49-50 pulloides 50.: 49 tricolor, Calliostonia 50: 49-50 tricolor, Oliva 60: 83 tricornis, Cypraea. see C. cicercula t. Tricula 58: 135 Tridachia diomedea 38: 143 Tridachiella 38: 143 Tridacna 35: 60, 72; 58: 144; 60: 27 gigas 35: 61; 43: 141; 54: 107 rudis 35: 61 tridens, Clausilia 50: 139 '^ tridentata, Cardita 51: 49 tridentata, Columella 60: 20-1, pi. 3 tridentata. Helix 48: 22 tridentata polita. Helix 45: 136 tridentata, Pleuromeris 36: 11 tridentata. Polygyra 39: 80; 40: 47. 66; 43: 66-7: 44: 17, 129; 45: 138; 46: 58-9. 91; 47: 58-9. 147; 48: 20-6. 49. 52. 57. 82, pi. 1; 49: 100; 50: 119: 51: 56, 58-9; 53: 45, 86 tridentata complanata, Polygyra 46: 103; 48: 22, 25-6, pi. 1 tridentata discoidea, Polygyra 47: 59; 48: 25 tridentata edentilabris, Polygyra 48: 22, 26, pi. 1 tridentata fraudulenta, Polygyra 48: 49 tridentata frisoni, Polygyra 47: 58 tridentata juxtidens, Polygyra 39: 74; 40: 47-8; 44: 128; 47: 59; 48: 22, 24-5, 49, pi. 1; 52: 97; 53: 46, 86 tridentata rugosa, Polygyra 53: pi. 12 tridentata tennesseensis, Polygyra 48: 22, 25-6, pi. 1 tridentata, Rissoina 36: 122 tridentata, Triodopsis 48: 22; 53: 97; 54: 88-9, 142; 55: 9, 13-5, 97; 57: 133, 136; 58: 25-6, 127-8; 59: 88; 60: 5 tridentata juxtidens, Triodopsis 53: 97; 58: 63; 59: 72 tridentata rugosa, Triodopsis 53: 96-7 tridentata, Turbonilla 42: 4 tridentata, Venericardia 58: 57, 140 tridentata, Vertigo 40: 16; 50: 98, 121; 51: 57 tridentina, Pleurodonte 49: 55 tridentina browneana, Pleurodonte 49: 55 tridentina chittyana, Pleurodonte 49: 55 tridentina schroeteriana, Pleurodonte 49: 55 trifasciatum, Buccinum 52: 77 Trifaux 48: 135 -- subgenus of Volvidens trifida, Odostomia (Menestho) 38: 50; 52: 29; 56: 143 trifidus, Ischnochiton (Trioplax) 38: 28 Trifora (Biforina) cingulifera 36: 123 pedroana 37: 42 Triforis incisus 52: 118 Trigona 55: 74 trigona, Fusconaia 36: 19 -- see also F. flava t. Trigonia 38: 112; 49: 82-3 Trigonicardia antillarum 49: 118 ceramidum 51: 114 medium 49: 118; 52: 28 Trigonodus 49: 82-3 cristonensis 49: 83 Trigonostoma -- subgenus of Cancellaria trilamellata, Urocoptis 41: 80-1; 55: 70 trilineata, Anculosa 35: 10; 43: 14-6; 46: 39-40 trilineata, Melania 43: 14; 46: 38 trilineata, Pandora 41: 15; 51: 48; 58: 57 trilix, Lydiphnis (Circulus) 52: 28 trimarianus, Drymaeus 44: 82 trinacrum, Ptychobranchus 37: 56 trinidadensis, Monadenia, see M. fidelis t. trinitaria, Tamayoa 41: 126 triodon, Volvidens (Trifaux) 48: 135, 137, pi. 8; 49: 52 Triodopsis 44: 139; 46: 103; 47: 144; 48: 20, 22, 83 -- also as subgenus of Helix and Polygyra 311 Triodopsis INDEX TO alabamensis, see vannostrandi a. albolabris 54: 88-90, 114; 55: 13-5; 57: 71, 136, 138-40; 58: 25-6, 128; 59: 27-8, 68-9, 88-9, 91, 93; 60: 5, 98, 103 albolabris major 55: 9 albolabris maritima 60: 98 albolabris traversensis 58: 63; 59: 68; 60: 98 anteridon, see rugosa a. caroliniensis 55: 9 dentifera 54: 88-9; 55: 13; 59: 28, 89, 91, 93 fallax 48: 49 fallax vannostrandi 55; 9 harfordiana 37: 133-5 hemphilli 37: 135 hopetonensis 48: 52; 53: 97; 54: 69; 58: 63 hopetonensis obsoleta 58: 63 introferens 48: 50 juxtidens, see tridentata j. major, see albolabris m. maritima, see albolabris m. multilineata 54: 145 notata 55: 13; 57: 137; 58: 26; 59: 89 obsoleta, see hopetonensis o. rugosa, see tridentata r. rugosa anteridon 58: 127 traversensis, see albolabris t. tridentata 48: 22; 53: 97; 54: 88-9, 142; 55: 9, 13-5, 97; 57: 133, 136; 58: 25- 6, 127-8; 59: 88; 60: 5 tridentata juxtidens 53: 97; 58: 63; 59: 72 tridentata rugosa 53: 96-7 vannostrandi 48: 51 -- see also fallax v. vannostrandi alabamensis 53: 97; 55: 9 Triopha 36: 137; 49: 142 Trioplax -- subgenus of Ischnochiton Triphobia 38: 111; 49: 78 Triphora fossilis 59: 104 hebes 46: 119 nigrocincta 46: 119 -- see also perversa perversa nigrocincta 56: 143 somersi 46: 119 Triphoris 38: 51 triplopoma, Choanopoma48: 60, 64, pi. 2 triplostephanum, Buccinum, see B. castaneum t. Triplostephanus 37: 63 Triplostephoma 37: 62 triptycha, Sagda 49: 54 Triptychus -- subgenus of Pyramidella triquetra, Dysnomya 46: 68 triquetra, Dysnomia (Truncillopsis) 36: 102; 44: 48; 45: 104 triquetra, Eupleura 52: 45 triquetra, Parastarte 37: 54 triquetra, Truncilla 36: 102, 131; 40: 67 Triremis -- subgenus of Murex triserialis, Thais 52: 46 triseriata, Natica 35: 87 triseriata, Polinices 35: 32; 38: 50; 39: 38; 56: 143 triseriata, Terebra 37: 63 tristis, Mitra 52: 45 tristis, Nerita 52: 54; 54: 22, 67 Tristramia 40: 36 Tritiaria (Antillophos) virginiae 56: 65, pi. 3 Tritogonia nobilis 36: 47 tuberculata 36: 47 verrucosa 40: 66 Triton 45: 78, 81 anomalus 58: 36 nobilis 53: 38 parvus 58: 36 Tritonalia 52: 10; 60: 37 aspera, see lurida a. atropurpurea, see interfossa a. barbarensis 52: 11; 60: 40 beta 55: 141 -- see also interfossa b. circumtexta 37: 42; 50: 47 clathrata, see interfossa c. foveolata 37: 42; 50: 47, 49; 52: 10; 53: 22 graceae 53: 84, pi. 10 gracillima 37: 42 interfossa 37: 42; 38: 25; 50: 47 interfossa atropurpurea 50: 47; 60: 38 interfossa beta 60: 39 interfossa clathrata 60: 39 interfossa minor 55: 141; 60: 41 japonica 40: 32; 49: 1 lurida 44: 93; 50: 47; 51: 101 lurida aspera 50: 47 lurida munda 50: 47 lurida rotunda 50: 47 macgintyi 53: 84 minor, see interfossa m. munda, see lurida m. painei 50: 47 poulsonii 36: 34; 45: 51 rotunda, see lurida r. n squamulifera 52: 10-1 subangulata 50: 47, 50 tenuisculpta 52: 10 Tritonidea -- also as subgenus of Pisania elata 58: 100 Tritoniella 41: 30 tritonis, Busycon, see B. maximum t. tritonis, Charonia 55: 2; 58: 120 Tritonium hornii 40: 144 viridulum 51 : 116-7 Tritonofusus (Plicifusus) kelseyi 59: 62 (Plicifusus) rectirostris 59: 61 tritonoides, Pisania 58: 122 triumphans, Megalonaias 36: 74-5 triumphans, Quadrula 36: 74 Trivia 40: 36; 42: 34; 48: 3, 43; 56: 16 californica 50: 48 maltbiana 56: 16, pi. 4 oryza 60: 55 312 THE NAUTILUS Trujilloi pacifica 37: 125; 52: 46 pediculus 56: 17 pilula 60: 51 radians 37: 125 sanguinea 37: 125 solandri 37: 42; 46: 110; 48: 4 suffusa 39: 86; 56: 17 trivittata, Alectrion 35: 32, 88; 38: 51; 39: 39, 134; 43: 132 trivittata, Anculotus 35: 9 trivittata, Nassa 35: 88; 41: 15-6; 56: 59 trivittatus, Nassarius 54: 127; 56: 143; 58: 62, 138. 140-1 trivolvis, Helisoma 42: 57-8, 131, 136; 43: 42, 119; 44: 46, 88; 45: 118; 46: 6, 137; 47: 86, 88, 141; 48: 59; 52: 15, 130; 53: 78; 54: 7-8, 144; 56: 54; 57: 45-6; 58: 12, 78; 59: 110 trivolvis chautauquensis, Helisoma 42: 57 trivolvis kolymense, Helisoma 46: 137 trivolvis lentum, Helisoma 47: 16; 48: 114 trivolvis macrostomum, Helisoma 50: 115 trivolvis winslowi, Helisoma 42: 58 trivolvis, Planorbis 36: 25; 37: 25, 79; 38: H743; 39: 117-9, 126; 40: 17; 41: 20. 85, 120; 42: 115, 120-1; 43: 83; 44: 110; 46: 101 trivolvis. Planorbis (Helisoma) 48: 48; 50: 41; 51: 93 trivolvis binneyi, Planorbis 44: 110 trivolvis hornii, Planorbis 55: 18 trivolvis pilsbryi, Planorbis 39: 117-9 trivolvis winslowi, Planorbis 39: 116-7 trobriandensis, Geotrochus 49: 91 trobriandensis, Papuina 50: 53-4 -- see also P. albocarinata t. Trochatella tenuis 48: 10 trochiformis, Euconulus 53: 63 trochiformis, Goodrichia 43: 107: 45: 71 trochiformis pilsbryi, Goodrichia 43: 107 trochiformis, Helix 40: 68 trochiformis, Spiratella 47: 55-6 trochiformis, Viviparus 44: 35-6 Trochita 39: 9 trochlearis, Latirus 52 : 85-6 trochlearis, Turbinella 52: 86 Trochomorpha 38: 36; 39: 33; 55: 35 conus 49: 67 swainsoni 36: 17 Trochonanina 50: 70; 51: 104-5 Trochovitrina 42: 138-9 trochulus. Euconulus 40: 16 -- see also E. chersinus t. Trochus 35: 120; 49: 67: 53: 36 cancellatus 59: 53 dolaboratoides 37: 47 faber 37: 48 fenestratus 60: 55 granulatus 37: 48 gyrus 37: 48 hotesserianus 46: 120 maculatus 60: 55 maculostriatus 46: 120 morio 37: 49 niloticus 37: 49; 60: 55 occidentalis 35: 87 palustris 37: 50 perspectiviunculus 37: 50 perspeculatus 37: 50 pyra 37: 50 sandwichensis 36: 123; 37: 3; 55: 2 sanguineus 53: 34 Solaris 37: 51 stimulus 37: 51 striatellus 56: 23, 29 tuber 37: 51 trogiloides, Cypraea 37: 51 troglodytes, Monadenia 46: 83-4, 86, pi. 5 troostiana. Anculosa 35: 11-2 troostiana, Goniobasis 38: 47; 51: 91 troostiana, Melania 42: 31 troostiana, Polygyra 45: 130 troostianus, Viviparus 55: 86 troostii. Trypanostoma 43: 10 Tropaeas 50: 108 (Siogamaia) fortiplicata 50: 108 Trophon 54: 3 (Boreotrophon) albospinosus 45: 66. pi. 4 clathratus 35: 87; 39: 134 (Boreotrophon) diazi 55: 121-2, pi. 8 lasius 52: 11 , pi. 1 lorensoensis 55: 121, 123, pi. 8 macouni 45: 66 scalariformis 35: 87: 39: 134 tenuisculptus 52: 10-1 triangulatus 45: 66 truncatus 39: 134 Trophonopsis 52: 10 tropica, Helicina, see H. orbiculata t. tropica, Lepidochitona 53: pi. 12 Tropicorbis 49: 104; 51: 107; 53: 106; 55: 31-2; 56: 1-2; 59: 70: 60: 67 gracilentus 58: 32 havanensis 49: 104; 56: 8-9; 58: 32 havanensis insularum 56: 8-9 insularum, see havanensis i. liebmanni 47: 16 obstructus 49: 104; 54: 97; 58: 32 pallidus 49: 104 tatei 54: 97 tropicus, Bulinus 41: 142; 52: 142; 57: 53; 60: 35 Tropidina 53: 140 tropidophora. Margarya, see M. melan- oides t. troscheli. Cepolis 38: 60; 52: 78 troschelii, Ancylus 41: 41 Troschelvinde.x 37: 90-2; 55: 34 illustris 37: 91 trossulus, Urosalpinx 49: 137-9 trujilloi, Oliva 51: 111-2, pi. 9 313 Trullifermis INDEX TO trullifermis, Teredo 38: 144; 58: 55; 60: 53 truncata, Alasmidonta 41: 92 truncata, Barnea 54: 127; 56: 142; 58: 60 truncata, Glandina 51: 48 truncata, Mya 38: 25; 40: 25, 77; 47: 102; 54: 2-5; 60: 108 truncata, Paludestrina (Ecrobia) 39: 8; 53: 45 truncata, Pholas 42: 83 truncata, Thracia 35: 32 truncata, Truncilla 36: 99; 39: 91; 40: 67 Truncatella 40: 32-3, 125-6; 56: 34 bilabiata 37: 66-9; 38: 62; 41: 52; 56: 34 caribaeensis 37: 66,68; 38: 62; 56: 34 caribaeensis succinea 37: 66-8; 56: 34 stimpsoni 37: 43 succinea, see caribaeensis s. Truncatellina 36: 63, 65; 37: 108 truncatula sibirica, Fossaria 52: 59 truncatula, Lymnaea 41: 41; 45: 131-2; 50: 10 truncatum, Cerithium 56: 20 truncatum, Helisoma 42: 132; 48: 109-10 truncatum, Musculium 40: 29, 51, 62; 42: 96; 43: 42, 119; 56: 52; 57: 93 truncatum angustatum, Musculium 40: 50 truncatum, Sphaerium 39: 123 truncatus, Planorbis 42: 104 truncatus, Trophon 39: 134 truncatus, Unio 51: 94 Truncilla donaciformis 36: 99; 44: 48 triquetra 36: 102, 131; 40: 67 truncata 36: 99; 39: 91; 40: 67 Truncillopsis -- subgenus of Dysnomla truncula, Nucula, see N. proxima t. trunculus, Murex 45: 108 tryoni, Anculosa 35: 11; 43: 11 tryoni! Helix 50: 136 tryoni, Somatogyrus 41: 24, 26; 53: 126 tryoni concava, Vorticifex 47: 27 Tryonia 37: 98; 59: 18 clathrata 48: 92; 53: 124; 54: 118 protea 53: 125; 54: 118; 59: 18 Tryonigens 56: 83 Trypanostoma ligatum 43: 10 lyonii 41: 58 simplex 43: 10 tennesseense 41: 59 troosti 43: 10 viride 43: 10 tuber, Astraea 38: 60 tuber, Trochus 37: 51 tuberculata, Cyclonaias 36: 48; 44: 47 tuberculata, Haliotis 46: 139 tuberculata, Margarya 56: 128 tuberculata, Melania 51: 93 tuberculata plicifera, Melania 40: 101 tuberculata, Melanoides 49: 78; 50: 10, 12, 17-8 tuberculata moussoni, Melanoides 40: 101 tuberculata. Morula 58: 122-3 tuberculata, Quadrula 36: 48; 41: 92 tuberculata, Tritogonia 36: 47 tuberculatus. Chiton 35: 121 tuberculatus, Cyclonaias 40: 66 tuberculatus. Discus, see D. bryanti t. tuberculatus, Drupa 36: 122 tuberculatus, Latirus 46: 45 tuberculatus, Ricinula 35: 84 tuberculatus, Unio 38: 29 tuberculosa, Area (Scapharca) 37: 127; 45: 74, 79 tuberculosa, Delphinula 59: 56 tuberculosa, Jacosta 50: 11 tuberculosa, Parviturbo 59: 56 tuberculosa. Pinna 46: 75 tuberculosum, Morum 37: 124; 52: 45 tuberosa, Astyris 58: 100 tuberosa. Cassis 51: 34; 53: 38; 58: 37, 61 tuberosa, Columbella 51: 104 tuberosa, Mitra 36: 122 tuberosa, Mitrella 50: 47; 53: 22 tuberosum, Buccinum 37: 51 tuberosus, Cymatium 36: 121; 58: 122-3 tuckeri, Polygyra, s ee R mullani t. tucumanensis, Epiphragmophora 39: 77 tucumanensis, Odontostomus (Spixia) 54: 92, 94-5 tudiculata tularensis, Epiphragmophora 52: 9 tudiculata umbilicata, Epiphragmophora 38: 55 tudiculata, Helix 36: 13; 46: 11-2 tudiculata tularensis, Helix 52: 7-8 tudiculata, Helminthoglypta 43: 40; 51: 120- 1; 56: 70-1 tudfculata cypreophila, Helminthoglypta 40: 125 tudiculata kermensis, Helminthoglypta 43: 40, 138; 51: 121 tudiculata kernensis, Helminthoglypta 51: 121-2 tudiculata rex, Helminthoglypta 51: 119, 121-2, pi. 8 tudiculata tularensis, Helminthoglypta 41: 78, 81; 51: 122 Tudora 37: 90; 39: 41, 106 aurantia 37: 93 costata 37: 93-4 fossor 37: 94; 39: 43 kabrietensis 39: 43 maculata 37: 92 megacheilos 37; 94; 39: 41, 43 megacheilos rondeklipensis 39: 43 muskusi 37: 93 pilsbryi 37: 94; 39; 41, 43 rondeklipensis, see megacheilos r. rupis 37: 93: 39: 43 Tudorisca 48: 61 Tudorops -- subgenus of Choanopoma 314 THE NAUTILUS Turgidula tukanensis, Cochlostyla (Calocochlea) 57: 18 tukanensis, Helicostyla (Calocochlea) 57: 17 tukanensis. Helix 57: 17 tularensis, Epiphragniophora, see E. traski t. and E. tudiculata t. tularensis. Helix, see H. tudiculata t. tularensis, Helminthoglypta, 51: 17 -- see also H. tudiculata t. tularensis sequoia. Helminthoglypta 54: 125 tularica, Epiphragmophora, see E. traskii t. tulipa, Conus 49: 41; 57: 72 tulipa, Fasciolaria 37: 54; 38: 60; 39: 85; 40: 100 tulipa, Volsella 59: 67-8 tulipus, Modiolus 37: 55; 58: 57; 59: 67 Tulotoma 44: 35; 54: 66; 55: 83, 92; 56: 124: 58: 4 angulata 58: 4 coosaensis 55: 83; 58: 4 niagnifica 58: 4 thompsoni 44: 36 Tumbeziconcha 48: 119 tumbezensis. Modiolus 48: 120; 49: 16, pi. 1 tumbezensis, Pecten 37: 127; 50: 55 tumens. Planorbis 47: 86 tumens. Hipponix 37: 43 tumens. Varicella, see V. paupercula t. tumens. Modiolus 60: 56 tumida, Donax 43: 30, 35 tumida, Rochefortia 38: 27 tumidulus, Bostryx 57: 122 tumidum, Sphaerium 38: 10 tumidus, Pachychilus, see P. pannucula t. tumulorum, Odontostonius 52: 93 tumulosa. Cypraea 37: 51 tumulosa clavigera, Thais 49: 2 tunicata. Katherina 38: 28; 47: 102 tunicatum, Zaphysema 49: 24, 54 turben kanaka, Ve.xilla 36: 123 Turbinella 52: 86 recurvirostra 52: 85 scolymus 39: 85 trochlearis 52: 86 turbinella, Engina 51: 89; 53: 38 turbinella. Polygvra (Stenotrenia) 46: 89- 91, pi. 7 turbinellum, Vasum 60: 56 turbiniformis, Fluminicola 48: 93 turbiniformis. Helix 50: 139 turbinoides sulana, Helicostyla 46: 65 turbinum. Cyclostrema 59: 54 Turbo 53: 36; 57: 63; 59: 11 ambiguus 37: 46 artensis 60: 55 caput-serpentis 37: 46 castaneus 37: 56: 39: 86; 51: 66; 58: 39, 60: 59: 11. pi. 2 castaneus tiara 51: 66 cimex 53: 29 coronatus 49: 2 fluctuosus 46: 115 glaber 44: 36 intercostalis 36: 123; 55: 2; 58: 120, 122-4; 60: 55 jamaicensis 36: 15; 56: 135-6; 57: 63 lincina 37: 91 magnificus 37: 121, 126 minimus 46: 119; 51: 113 nivosus 60: 55 olearius 37: 50 petholatus 55: 2; 60: 55 tiara, see castaneus t. tortus 36: 15 (Callopoma) saxosus 37: 126 Turbonilla 35: 61; 36: 34; 38: 51; 41: 104; 45: 67; 50: 47; 51: 54; 52: 49; 55: 121; 56: 144; 58: 60 aequalis 56: 144 areolata 56: 144 attrita 43: 27 (Pyrgiscus) burchi 52: 49, pi. 4 caelata 39: 144 (Babella) caelatior 39: 144 (Strioturbonilla) cayucosensis 43: 26, pi. 3 (Pyrgiscus) delmontana 50: 100-1 (Pyrgiscus) delmontensis 50: 100-1 -- see also gilli d. (Pyrgiscus) dora 52: 51 (Mormula) eschscholtzi 38: 26 (Pyrgolampros) eyerdami 38: 23, 26; 51: 126 (Pyrgiscus) favilla 39: 144 gilli delmontensis 50: 101 halibrecta 45: 67 hypocurta 39: 144 (Chemnitzia) kelseyi 37: 42 morsei 50: 91 (Chemnitzia) muricata 55: 122 (Pyrgolampros) newcombei 51: 55 nivea 56: 144 (Mormula) pentalopha 37: 42 plicatula 51: 54 (Pyrgolampros) skogsbergi 51: 54. pi. 4 f Pyrgolampros) strongi 45: 67, pL 4 (Bartschella) subangulata 55: 122 taylori 51: 124 (Cingulina) triarata 50: 108 tridentata 42: 4 typica 51 : 54 vinea 56: 144 winkleyi 56: 141 turdus, Cypraea 40: 127-8 turdus distinguenda, Cypraea 40: 127-8 turdus pyriformis, Cypraea 40: 127-8 turgida, Anculosa (Mudalia) 54: 65 turgida, Ostrea 38: 115 turgidula, Streptostyla 55: 60 315 Turgidum INDEX TO turgidum, Cerion, see C. ramsdeni t. turgidus, Pecten 38: 114 turgidus, Unio 39: 89 turneri, Melania 37: 98 Turricula exasperata arenosa 60: 56 plicaria 60: 56 sanguinisuga 60: 56 subdeclivis 50: 91 turricula, Carelia 46: 138 Turris babylonia 60: 56 brevicaudata 36: 123 (Surcula) macella 37: 108 macilenta 37: 108 turris, Buccinum 37: 51 turris, Euglandina 44: 84; 52: 16 turrita, Bellamya, see B. quadrata t. turrita, Cerithidea 37: 54; 56: 21 -- see also C. costata t. turrita. To, see I. fluvialis t. turrita, Melania 57: 21 Turritella 36: 35, 51; 40: 71; 41: 36; 44: 26; 47: 145 acropora, see subangulata a. A-L-Owensi 40: 71 apicalis 59: 144 bicarinata, see uvasana b. burwashi 41: 36 cumberlandia 50; 18 G-A-Weaveri 40: 71 goniostoma 37: 125; 46: 110; 52: 46; 55: 115 indenta 50: 18 insula, see uvasana i. royi, see uvasana r. sargeanti 41: 36 soc'ordia 41: 36 subannulata acropora 52: 28 tigrina 52: 46 tricarinata 41: 36; -- see also uvasana t. uvasana bicarinata 41: 36 uvasana insula 41: 36 uvasana royi 41: 36 uvasana tricarinata 41: 36 turritella, Amastra 37: 3; 38: 79 Turritellopsis acicula 35: 32; 39: 133 Turritonia 54: 143 Turritoniella 54: 143 Turtonia niinuta 38: 27 turturina, Columbella 55: 2 turveri, Haliotis, see H. fulgens t. tusa, Mitra 36: 122 tusagasuganus, Drymaeus 51: 33 typhae, Onchidiuni 51: 85-6 Typhis 45: 72- S4: 36; 57:40; 58: 34 fordi 57: 40. pi. 7 lowei 45: 72; 53: 66, pi. 8 pinnatus 57: 40 Typhlochiton 35: 4 felipponei 35: 4 typica, Petricola (Rupellaria) 39: 84 typica, Rupellaria 54: 40; 58: 58 typica, Turbonilla 51: 54 typicum, Phasianella (Eulithidium) 37: 43 tytha, Didlanema 59: 12 uahukana, Lamellidea 47: 62 uber, Polinices 37: 125 uberta, Helicina 48: 54 uinta, Oreohelix, see O. eurekensis u. uintaense, Musculium 56: 53 Ulostoma 49: 103 ultima, Helicostyla 44: 141 ultima, Humboldtiana 44: 13 ultima. Vertigo, see V. modesta u. Ultimus 53: 1,3 precursor 53: 2, pi. 1 ultramontanum, Pisidium 41: 119 Umbilia hesitata 40: 18 umbilicalis, Margarites 54: 3-4 umbilicalis spiralis, Margarites 39: 131 umbilicata, Anculosa 35: 11; 46: 38; 56: 132 umbilicata, Clappia 58: 10 umbilicata, Cypraea 40: 129-30 umbilicata, Fossaria 54: 144; 57: 45; 59: 28-9 umbilicata, Helix 37: 51 umbilicata, Helminthoglypta 38: 55, 105; 44: 30; 54: 122, 124-5; 55: 107 umbilicata cayucosensis, Helminthoglypta 38: 104; 41: 78 umbilicata, Lymneae 40: 59 umbilicata, Polita, see P. indentata u. umbilicata, Tegula, see T. gallina u. umbilicatellus, Gyraulus 42: 133; 45: 118 umbilicatellus, Menetus 51: 130 umbilicatellus, Planorbis 36: 21; 37: 79; 40: 61; 42: 19; 43: 84; 49: 46, 48 umbilicatus, Drillia 60: 61 umbilicatus, Neoplanorbis 58: 15 umbilicatus, Somatogyrus 58: 10 umbonata. Area 38: 60; 39: 82; 49: 116; 54: 21; 58: 56 Umbraculum 37: 122 botanicum 38: 34 ovalis 37: 123 umbrans, Lampsilis 37: 137 umbrans, Micromya. see M. vanuxemensis u. umbrans, Unio 37: 137, 139 umbrella, Crucibulum 52: 45 umbrosa, Hygromia 50: 134 umbrosa, Lymnaea 37: 24; 51: 49 umbrosa, Monacha 50: 134 umbrosus, Limax, see L. maximus u. umbrosus, Unio 37: 137 unalaskensis, Odostomia (Evalea) 51: 102 Uncancylus 37: 10, 12 barilensis 37: 12 unciale, Pleurocera 35: 3; 56: 132 uncinata, Cavolinia 47: 55-6 uncinatum, Choanopoma 42: 98; 47: 134-5 uncinatum indivisum, Choanopoma (Annula- rodes) 42: 98; 47: 133-4; 52: 139 316 THE NAUTILUS Unio uncinatum indivisum, Opisthosiphon 42, pi. 5 undata, Astarte 40: 24; 56: 140 undata, Crassatellites 46: 109 undata, Cryptaxis 35: 102 undata, Drupa 60: 55 undata, Fusconaia, see F. flava u. undata, Leptaxis 35: 101 undata, Lucina 58: 105 undata, Myrtaea 58: 99 undata, Oxystyla 38: 57, 61; 49: 3, 56; 50: 19-20; 56: 36; 59: 31 undata floridensis, Oxystyla 53: 122 undata jamaicensis, Oxystyla 49: 56; 56: 5; 59: 31 undata reses, Oxystyla 50: 19-20 undata, Quadrula 36: 54 undata, Thais 35: 121; 38: 62 undata, Velutina 35: 32; 39: 123 undatella, Chione 36: 33; 52: 44 undatella, Olivella 60: 81-2 undatella, Tegula 49: 2 undatoides, Lucina 58: 105 undatostriata, Chione 58: 99 undatum, Buccinum 35: 30, 32-3,87, pi. 1; 39: 38, 134; 41: 14; 42: 39; 56: 59, 141; 57: 67 undatum striatum, Buccinum 39: 134 undatum, Pleurocera, see P. canalicu- latum u. undatus, Orthalicus 60: 107 underwoodi, Pittieria 55: 55 undosa, Melania 43: 6 undosus, Astraea (Pomaulax) 37: 43 undulata, Alasmidonta 37: 29; 41: 108; 44: 69; 54: 53 undulata, Anatina 38: 99 undulata, Cassis 52: 77 undulata, Cyathodonta 37: 128 undulata, Goniobasis 42: 67 undulata, Labiosa (Raeta) 37: 130; 38: 99 undulata, Littorina 60: 55 undulata, Lucidella, see L. granulosa u. undulata, Lutraria 38: 98-9 undulata, Quadrula 36: 48 undulata, Raeta 37: 122; 38: 99 undulatum, Buccinum 52: 77 undulatum, Pleurocera 38: 45; 40: 9, 66; 43: 8-10 -- see also P. canaliculatum u. undulatus, Crassatellites 46: 10 undulatus, Lanx 47: 28 undulatus. Strophitus 37: 29; 54: 52 undulatus, Unio 51: 48 unedo, Hemicardium 60: 57 ungava, Stagnicola, see S. palustris u. Ungoteredo 41: 72 unguiculus, Limacella 35: 79 unguis, Astraea 52: 44-3 unguis, Calyptraea 39: 9-10 unicarinata, Helisoma, see H. antrosa u. unicarinata, Planorbis, see P. antrosus u. unlcarinatum, Monoceros 38: 19-20, 104 unlcifera, Polygyra 40: 3; 49: 20; 50: 143 unicincta, Nassa 51: 93 unicinctum, Cerithium 52: 44 unicolor, Bellamya 56: 125-6 unicolor, Conus 37: 52 unicolor. Helix, see H. badia u. and H. hortensis lutea u. unicolor, Mesodon, see M. multilineatus u. unicolor. Pilar 52: 46 unicolor, Polygyra, see P. multilineata u. and P. profunda u. unicolor, Rhachis, see R. mageni u. unicolor, Succinea, see S. campestris u. unicolor, Viviparus (Bellamya) 56: 129 unicum, Buccinum 47: 93 unidentata. Helix 46: 72; 59: 121 unidentatus, Strophocheilus 43: 76 unifasciata, Carocolla 59: 117 unifasciata, Cypraea, see C. fimbriata u. unifasciata. Lacuna 36: 18; 37: 42; 38: 17-8 unifasciata aurantiaca. Lacuna 38: 17-8 unifasciata, Micrarionta, see M. hutsoni u. unifasicata, Natica 37: 125 unifasciata, Palmadusta 57: 23 unilamellata, Leptinaria 58: 84, 88, 91 unilineatum, Bittium, see B. boeticum u. Unio 36: 70-1; 38: 139; 41: 86; 43: 110; 44: 70; 45: 44; 47: 116; 49: 82-3; 50: 127; 51: 93 abruptus 37: 135-7; 51: 48 anodontoides 39: 93 apiculatus 39: 90; 51: 93 asperatus 36: 77 asperrimus 39: 89 berlandierii 47: 72 buckleyi 41: 54 cacao 36: 73 (Cafferia) caffer 47: 77 (Cafferia) caffer natalensis 47: 77 camptodon 36: 128; 51: 92 -- see also tetralasmus c. circulus 37: 136 clarkianus 37: 142-3 complanatus 36: 44; 37: 29, 96; 52: 128 compressus 36: 43 corvunculus 37: 100-1 costulata 45: 55 crassidens 36: 96 crassus 37: 135 declivis 36: 127-8: 51: 49 difficilis 37: 102 dombeyana 41: 131 (Nephronaias) dysoni 35: 25; 41: 139 elegans 39: 91 ellipsis 51: 48 exiguus 37: 103 fabaceus 37: 138-9 falaceus 37: 139 317 Unio INDEX TO favosus 36: 79 flagellatus 51: 48 flavescens 37: 56 fontainianus 47: 74 geometricus 36: 127-8 georgianus 36: 79 gerhardti 37: 142-3 gibbosus 36: 97 glebulus 51: 49 gracilis 39: 91 granadensis 57: 14-5 granosa 44: 41 haleianus 36: 128 hartii, see webbianus h. hinkleyi 47: 18 infucatus 36: 2, 5; 38: 29 interruptus 51: 49 jayanus 38: 29 jayensis 38: 29 johnstoni 42: 66 jonesi 37: 101 kleinianus 36: 2-3, 5 lapillus 51: 92 lawi 40: 132 ligamentinus 37: 135; 38: 29; 49: 80, 84 linguaformis 37: 102 lineolatus 51: 94 littoralis 53: 141 lugubris 51: 92 luteolus 53: 102 (Nephronaias) malleus 35: 24 mississippiensis 36: 100 mitchelli 36: 143 modestus 36: 43-4 modicus 36: 83 monodonta 51: 48 murinus 36: 43-4 nasutus 38: 29 natalensis, see caffer n. nebulosus 37: 102 nexus 51: 93 nobilis 39: 90 nodiferus 39: 89 orbiculatus 37: 135-7 orbignyi 47: 72 (Nephronaias) ortmanni 35: 24-5 patulus 57: 14, 16 pernodosus 36: 77 (Nephronaias) persulcatus 35: 24-5 phaseolus 51: 49 pinei 47: 18 plancus 37: 102 (Nephronaias) plicatulus 35: 25 plicatus 38: 29; 39: 88 proprius 37: 138-9 quadrans 47: 72, 74 quadrulus 51: 93; 53: 35 radians 37: 101 (Nephronaias) ravistellus 35: 25 ridibundus 51: 48 rubellinus 37: 60, 99 rufofuscus 47: 74 rugosus 51: 93 rutilans 37: 103 (EUiptio) sanctorumjohanium 47: 17, pi. 1 simplex 37: 56 simpularis 36: 43 simus 37: 102 sinopae 50: 128 sparus 37: 102 spilmani 37: 142-4 spinosa 43: 140 stagnalis 37: 103 stagnorum 47: 75 striatus 36: 83 subellipsis 37: 103 subrotunda 37: 135, 137 subtentus 51: 48 sulcatus 51: 48 superiorensis 40: 3 tenebricus 37: 138-9 tetralasmus 36: 127-8; 51: 49; 53: 137- tetralasmus camptodon 52: 15 texasensis 36: 128 torsus 37: 136-7 trapezoides 41: 131 triangularis 51: 48 truncatus 51: 94 tuberculatus 38: 29 turgidus 39: 89 umbrans 37: 137, 139 umbrosus 37: 137 undulatus 51: 48 vanuxemensis 37: 138 velatus 37: 56 ventricosa 51: 49 verucosus 38: 29 vibex 37: 104 wasatchensis 50: 127 (Elliptio) webbianus 47: 94, pi. 10 (EUiptio) webbianus hartii 47: 95, pi. 10 woodwardianus 37: 56-7 Uniomerus 52: 15 Uniplicaria -- subgenus of Ennea uniplicata, Columplica 59: 121 uniplicata, Simnia 58: 61 unisulcatus, Pedipes 40: 142 Univalvia 39: 36 • unizonalis, Oliva, see O. carneola u. urania, Columbella 36: 121 urceolus, Strombus 37: 52 urceus, AmpuUaria 51: 50 urceus, Nerita 41: 63 urceus, Strombus 60: 55 urichi, Leptinaria 58: 90 urichi, Subulina 58: 89 Urichia 41: 23 Urocoptis 38: 56; 40: 38-9, 70; 45: 26, 88, 96; 49: 142; 52: 15; 53: 95: 55: 70 abbreviata, see brevis a. 318 THE NAUTILUS Utahensis alleni 42: 141, pi. 4 ambigua 49: 21, 57 ambigua fortis 49: 57 anibigua magna 49: 57 ambigua medinae 49: 21, 57 amcthystina 49: 57 antonionis, see lata a. artemisiae 45: 88 atkinsi, see livida a. auberiana, see elegans a. bahamensis providentia 38: 62 barbouri, see livida b. brevis 49: 57 brevis abbreviata 49: 57 brevis columna 49: 57 brevis obesa 49: 57 caerulans 40: 74, 90 cerina, see sanguinea c. chambasensis 42: 80, pi. 5 clenchi, see tenuistriata c. coerulans 55: 70 columna, see brevis c. crispula 45: 88 cyclostoma ischna 40: 90 cylindrus 49: 21, 57 dautzenbergiana 40: 40, 74, 90 dautzenbergiana gemmata 40: 75 delectabilis 42: 80, pi. 5 delectabilis florentiana 42: 80, pi. 5 discors 40: 90 dubia 49: 57 elegans 38: 62; 40: 90 elegans auberiana 40: 90 elizabethensis 49: 52 elliotti 40: 39-41, 73, 75 florentiana, see delectabilis f. fontis, see ambigua f. geminata 55: 70 gemmata 40: 74 -- see also dautzen- bergiana g. gravesii 49: 57 handi 40: 74-5 heteroscuplta 45: 88, 98 hollandi 49: 58 humboldtiana 40: 90 irrorata 40: 91 ischna. see cyclostoma i. (Spirocoptis) lata 49: 57 (Spirocoptis) lata manchionealensis 49: 57 livida 44: 15 livida atkinsi 44: 15, pi. 2 livida barbouri 44: 15, pi. 2 lowei 40: 73-4 magna 49: 21 -- see also ambigua m. manchionealensis, see lata m. (Autocoptis) maxwelli 52: 15, pi. 7 medinae, see ambigua m. megacheila 49: 57 mellita 45: 88-9, 96-8 mellita perlonga 45: 89, 97-8 mendozana 41: 80; 42: pi. 1 monelasmus 41: 80 nobilior 49: 57 nodulifera 40: 91 nubila 40: 91 obesa, see brevis o. obscura, see vignalensis 0. olssoni 52: 16 perfecta, see scobinata p. perlonga, see mellita p. (Idiostemma) pilsbryana 55: 104 plicata 42: 141 poeyana 40: 91 poeyana variegata 40: 91 portuondi, see scalarina p. procera 40: 57 propinqua 40: 91 providentia, see bahamensis p. pruinosa 55: 70 pupaeformis 49: 58 (Bactrocoptis) rosea 49: 57 (Bactrocoptis) rosea striata 49: 57 rugeli 40: 91 sanguinea 49: 57 sanguinea cerina 49: 57 scalarina 40: 91; 42: 141; 45: 88 scalarina portuondi 45: 88, 98 scobinata 55: 104 scobinata perfecta 55: 104 sinistra 42: pi. 1 strangulata 40: 91 striata, see rosea s. tenuistriata 45: 96-8 tenuistriata clenchi 45: 97 torquata 55: 70 torreana 42: pi. 5 torrei 42: 80 trilamellata 41: 80-1; 55: 70 variegata, see poeyana v. ventricosa 55: 70 vignalensis 40: 74-5, 91; 41: 80-1 vignalensis obscura 40: 91 violacea 41: 81 wrighti 55: 70 zonata 49: 57 Urosalpinx 42: 68; 49: 137; 57: 143 aitkinae, see cinereus a. cinereus 35: 88; 38: 50; 41: 8, 15, 141; 42: 68; 49: 137; 50: 66; 54: 127; 56: 143; 57: 143; 58: 61; 60: 75 cinereus aitkinae 36: 104 perrugatus 49: 137-9; 56: 36 trossulus 49: 137-9 Ursirivus 60: 36 Ursula, Helix 45: 142 uruapamensis, Spiraxis 53: 90 urubaobensis, Nenia, see N. angrandi u. uruguayensis, Diplodon 47: 72 ussuriensis. Cipangopaludina 56: 127 ustulata, Helix 35: 40, 100 utahensis, Lymnaea 44: 77-9, 109-12; 45: pi. 11; 46: 97 utahensis, Patula, see P. hemphilli u. 319 Utahensis INDEX TO utahensis, Valvata 41: 119; 44: 109, 113; 53: 140 uva, Cerion 39: 42, 106 uva diablensis, Cerion 39: 42 uva hatoensis, Cerion 39: 42 Uvanilla -- also as subgenus of Astraea regina 36: 31 uvasana bicarinata, Turritella 41: 36 uvasana insula, Turritella 41: 36 uvasana royi, Turritella 41: 36 uvasana tricarinata, Turritella 41: 36 uvidermis, Vitrinizonites, see V. latissimus u. uvulifera, Polygyra 37: 66-7; 41: 53 ; 49: 109; 50: 71-2; 54: 32 uvulifera margueritae, Polygyra 49: 109 uzielliana, Bythinella 50: 10 vacaensis, Liguus 36: 114 vaderensis, Phaenomya 36: 141 vagans, Mitra, see M. ticaonica v. Vagavarix 55: 25, 27-30 -- subgenus of Varicella Vaginina 39: 14, 17 conradti 39: 14 Vaginopsis 39: 15, 17 Vaginula 39: 13, 15, 17; 42: 47 angustipes 39: 15-6; 44: 136 borelliana 39: 15-6 braueri 39: 14; 44: 136 comorensis 39: 14-5 difficilis 39: 15; 44: 136 frauenfeldi 39: 15 grandidieri 39: 14; 44: 136 grossa 39: 14; 44: 136 idae 39: 15 kitotoensis 39: 14 kraussii 39: 17 lactea 39: 14; 44: 136 moreleti 44: 134 nesiotis 39: 17 pleuroprocta 39: 14 pterocaulis 39: 15 seychellensis 39: 14 sloanei 42: 45-6 subaspera 39: 14-5; 44: 136 taunaisii 39: 17 voeltzkowi 39: 14: 44: 136 Vaginulopsis 39: 14-5. 17 Vaginulus 39: 13, 17; 42: 45-6; 44: 135-6; 57: 47 (Angustipes) antillarum 40: 104 birnianicus 42: 47 (Angustipes) dubius 41: 129; 44: 134-5 (Angustipes) erinaceus 41: 129 (Sarasinula) erinaceus 44: 136 (Phyllocaulis) langsdorfi 41: 129 (Sarasinula) laurentianus 44: 136 (Sarasinula) linguaeforniis 44: 136 (Latipes) occidentalis 42: 46; 44: 137 (Sarasinula) plebcius 39: 15; 44: 131, 134-6 stuxbergi 51: 88 tannaisii 42: 47 taunaisii 39: 13; 41: 129; 42: 47 taunaysi 39: 13 vahlii, Lymnaea 38: 11; 39: 32, 125; 40: 60; 42: 16; 43: 79; 47: 9; 55: 19 vahlii arctica, Lymnaea 40: 60 vahlii pingellii, Lymnaea 40: 60 vahlii, Stagnicola 54: 2 valdezi, Odostomia (Evalea) 50: 48, 50 valdivianus, Anodontites 38: 54 valida, Cerithidae 56: 26 valida, Lucidella. see L. depressa v. valida, Pleurodonte 49: 56 validum, Cerithium 56: 25-6 Valiguna 42: 47 schneideri 42: 47 Vallonia 41: 123; 43: 80, 133; 44: 74; 50: 119, 121; 52: 96; 55: 68; 58: 69 adela mionecton 50: 9 albula 42: 123; 43: 134; 44: 114; 54: 28; 56: 53; 57: 131 costata 40: 57-8; 42: 14. 135; 43: 43, 80; 44: 44; 47: 139; 50: 121; 51: 57.63, 140; 52: 15, 96; 53: 77, 88; 57: 131-2 costata montana 37: 79; 57: 131 cyclophorella 37: 79; 44: 74, 114; 47: 2; 54: 96, 117; 55: 144; 59: 123 excentrica 53: 88 gracilicosta 37: 79; 41: 20; 42: 94. 123, 135; 43: 56; 44: 40; 45: 116; 50: 14; 54: 28, 31, 96, 117; 55: 143-4 mionecton, see adela m. parvula 40: 16; 44: 44; 45: 116 perspectiva 38: 43; 52: 15; 54: 30-1; 55: 144; 58: 69 pulchella 42: 123. 135; 43: 43-4, 68; 44: 44; 45: 34; 50: 121; 51: 57, 63, 140; 52: 96-7; 53: 88; 54: 28, 30; 56: 53; 57: 132; 59: 68; 60: 99 Valvata 40: 107; 42: 94; 43: 77; 44: 30, 110, 120; 46: 19-21, 137; 53: 140; 54: 8; 55: 139; 58: 6, 35, 78 arenifera 51: 93; 60: 5 basalis 35: 24 bicarinata 48: 110; 52: 130-1; 58: 6 bakeri, see tricarinata b. bicarinata normalis 46: 20 californica, see humeralis c. confusa, see tricarinata c. danielsi 41: 137 densestriata 48: 16 -- see also humeralis d. grubii 41 : 41 helicoidea, see lewisii h. humeralis 59: 21-2 humeralis californica 41 : 119; 42: 120- 1; 44: 109; 47: 3, 29; 48: 16, 48; 52: 35; 53: 137; 55: 131; 56: 55 humeralis densestriata 55: 131 320 THE NAUTILUS Varians infracarinata 35: 24 -- see also tricarinata i. lewisii 38: 11: 40: 50, 56, IH; 41: 85, 137; 44: 30, 119-20; 54: 144; 57: 46; 58: 78 lewisii helicoidea 38: 11; 40: 76; 44: 120-1; 51: 130 lewisii ontariensis 44: 119 lewisii precursor 41: 136: 44: 22 mediocarinata, see tricarinata m. normalis, see bicarinata n. nylanderi, see sincera n. obtusa 52: 30 ontariensis, see lewisii o. perconfusa 35: 24 -- see also tricari- nata p. precursor, see lewisii p. perdepressa 44: 108; 53: 140 perdepressa walkeri 53: 140 piscinalis 40: 69; 43: 144: 52: 30-1, 60-2; 53: 102, 140; 59: 36 platyceps, see virens p. sibirica 52: 58 simplex 35; 24; 46: 19-20 -- see also tricarinata s. sincera 41: 137; 44: 108, 120; 46: 20; 50: 114-5; 52: 30; 58: 78; 59; 29 sincera nylanderi 42: 54; 44: 30. 120 stelleri 52: 59 supracarinata 35: 24 tricarinata 35: 23-4; 36: 25; 38; 11; 40: 62; 41: 20, 120; 42: 18, 54; 43; 85; 44: 30, 46; 45: 118; 46: 20-1; 47: 9; 48: 109-10; 50: 114; 52: 128, 131; 53; 78. 140; 54: 8; 58: 6 tricarinata bakeri 46: 20 tricarinata confusa 46: 20 tricarinata infracarinata 46: 20 tricarinata mediocarinata 46: 21 tricarinata perconfusa 41; 20; 42: 54; 46: 21 tricarinata simplex 40: 50; 46; 20-1; 59: 29 utahensis 41: 119; 44: 109, 113; 53: 140 virens 48: 48; 53: 140 virens platyceps 55: 131 walkeri, see perdepressa w. winnebagoense 53: 140 vanattai, Hojeda 50: 70; 54: 60-1 vanattai, Poecilozonites 38: 7 Vancleaveia 44: 108 vancouverense, Bittium (Seniibiltium) 38: 26; 51: 103 vancouverense, Haplotrenia 53: 133; 54: 132 vancouverensis, Circinaria 38: 122-3 vancouverensis. Haplotrema 36: 37, 106; 43: 142; 46: 104-5, 127-8; 48: 47 vancouverensis hybrida, Haplotrenia 43: 142 vancouverensis, Stagnicola, see S. buli- moides v. vancouverinsulae, Polygyra, see P. germana v. vanduzeei, Coelocentrum 46: 110 vanhyningi , Conus, see C. verrucosus v. vanhyningi , Lyogyrus 47: 149, pi. 13 vanhyningi , Orinella 57: 106, pi. 9 vanhyningi , Primovula (Pseudosimnia) 54: 46 vanhyningiana. Goniobasis 42; 30 Vanigula 39: 18; 44: 137 seychellensis 44: 137 Vanikoro 58: 121 vannostrandi, Polygyra 48: 22, 51-2, pi. 1 vannostrandi alabamensis, Polygyra 48: 22, 52, 97, pi. 1 vannostrandi. Helix 48: 51 vannostrandi, Triodopsis 48: 51 -- see also T. fallax v. vannostrandi alabamensis, Triodopsis 53: 97; 55: 9 vanuxemensis, Elliptio 37: 137 vanuxemensis, Euglandina 55: 60 vanuxemensis, Eurynia 40: 66 vanuxemensis umbrans, Micromya 37; 137, 139 vanuxemensis, Unio 37: 138 vanuxemiana, Goniobasis 58: 45 varia, Diala 35; 84 varia, Littorina 36: 51 varia, Haliotis 60: 55 varia, Ostrea 37- 52 variabile, Cerion 55: 104 variabile, Cerithium 38: 60; 39: 86; 56: 29 variabile, Pisidium 35: 112-3, 115; 37: 20, 31; 40: 50; 41: 84; 42: 123; 44: 69, 91, 114; 48; 48; 54: 28, 144; 56; 53; 57; 46; 59: 24 variabile brevis, Pisidium 40: 56 variabilis, Adamsiella 48: 64 variabilis errans, Adamsiella 48: 64 variabilis granosa, Adamsiella 48: 64 variabilis, Anculosa 35; 9 variabilis, Donax 36: 11, 60; 37: 53, 55; 38: 32; 39: 84; 41: 10, 15, 140; 42:142; 43: 28-30; 49: 132; 51: 94; 54: 21; 57: 32; 58: 59; 59: 15 variabilis, Lamellidea 47: 60 variabilis, Omphalotropis 41: 32 variabilis, Oreohelix 50: 77 variabilis, Pacificella 47: 60 variabilis. Paravitrea (Paravitreops) 42: 89-90, 93 Variamussium -- subgenus of Pecten varians, Cepolis 38; 60; 52: 78; 56: 82, 85-7 varians, Columbella 36: 121; 55: 2 varians, Crassinella 55: 121 varians. Petaloconchus 48: i]6 321 Varians INDEX TO varians, Poteria 48: 62, 86; 49: 51; 56: 135 varians, campeachyi, Poteria 48: 61, 86, pi. 2 varians, corrugatior, Poteria 48- 86 varians, portlandensis, Poteria 48: 86 Varicella 40: 39; 45: 53-4; 49: 21-2, 26; 53: 107; 55: 24-7, 29, 52, 56; 56: 2 acuticostata 40: 91; 49: 21; 55: 25 (Melaniella) acuticostata horrida 55: 26, pi. 1 (Costavarix) adamsiana 49: 25;- 55: 26 ampla, see caymanensis a. (Euvaricella) arcuata paradisi 49: 23, 26, pi. 2 biplicatula 49: 26 biplicatula dissimilis 49: 26; 55: 26 blandiana 49: 22, 26; 55: 26-7 (Varicellula) blandiana subaequa 49: 22, 26 (Vagavarix) calderoni 55: 27 (Euvaricella) castanea 49: 23, 26, pi. 2 caymanensis 56: 7, 9 caymanensis ampla 56: 8-9 clappi 49: 26 cochlidium 49: 26 costulata 49: 25 costulata pallidula 49: 25 costulosa 49: 23 curvilabris 49: 22, 24; 55: 25 (Sigmataxis) cylindrica 48: 85, pi. 3; 49: 27 denticulata suturalis 55: 29 dissimilis, see biplicatula d. elegans, see philippiana e. floridana, see gracillima f. glabra 53: 107 glabra gracilior 53: 107 gossei 49: 25 gracilior 49: 25 -- see also glabra g. gracillima 40: 91 gracillima floridana 37: 69; 55: 26 griffithii ischna 49: 26 horrida, see acuticostata h. impressa terebraeformis 55: 28 ischna, see griffithii i. jamaicensis 49: 23 laeviusculus 48: 85; 49: 22, 27 laeviusculus perplexa 48: 85 leucozonias 45: 54; 49: 22, 26; 55: 25. 28 leucozonias striatella 49: 27, 55: 24, 26, pi. 1 levis 49: 26; 55: 26 ligata 49: 26 mandevillensis 49: 22, 25; 55: 26-7 micans 49: 27 (Varicellaria) necrodes 48: 85; 49: 22, 26 nemorensis 49: 23, 26; 55: 26 osculans 49: 25 pallidula, see costulata p. paradisi, see arcuata p. parallela 48: 85 paupercula 49: 27 (Sigmataxis) paupercula tumens 48: 85, pi. 3; 49: 27 pellucens 49: 26 perplexa 48: 85 -- see also laevius- culus p. perstriata 49: 27 philippiana 49: 22, 26 philippiana elegans 49: 2 6 phillipsii 49: 23, 26 pinchoti 56: 7-8 (Laevaricella) playa 53: 107; 55: 29 portlandensis, see vicina p. (Vagavarix) portoricensis 55: 25, 27-8, pi. 2 pritchardi 40: 91 (Sigmataxis) procera 48: 85; 49: 22, 27; 55: 26-7, pi. 1 (Varicellula) propinqua 49: 26 proxima 49: 22 puella 49: 26 rapax 49: 26 similaris 49: 22, 26; 55: 27 similaris sloaneana 49: 26 similis 55: 26 sloaneana, see similaris s. spina 49: 26; 55: 26 (Vagavarix) sporadica 55: 28 striatella, see leucozonias s. subaequa, see blandiana s. (Sigmataxis) subaquila 48: 85, pi. 3; 49: 27 (Varicellaria) subdola 49: 22-3, 26, pi. 2 (Vagavarix) sulculosa 55: 28, pi. 2 suturalis, see denticulata s. tenera roperi 49: 26 terebraeformis, see impressa t. tumens, see paupercula t. (Euvaricella) venusta 49: 26; 55: 26 (Varicellina) vicina 49: 27 (Varicellina) vicina portlandensis 49: 23-4, 27, pi. 2; 55: 27, pi. 2 Varicellaria 49: 22; 55: 26 -- subgenus of Varicella Varicellidea 55: 25 Varicellina 49: 22; 55: 25, 27 -- subgenus of Varicella Varicellopsis 55: 25 Varicellula 49: 22; 55: 26 -- subgenus of Varicella Varicoglandina 55: 52, 54, 57 -- subgenus of Euglanaina varicosa mazatlanica, Cerithidca 56: 24 varicosa, Scala 51: 7 varicosa, Solariella 39: 131 varicosa bella, Solariella 39: 131 varicosum, Cerithium 56: 22, 25-7 varicosus, Drymaeus, see D. attenuatus v. 322 THE NAUTILUS Ventrosa varicosus, Machaeroplax 38: 27 varicosus, Potaniides (Cerithidea) 56: 23 Varicoturris 55: 52, 54, 56 variegata, Cardita 60: 56 variegata, Chania 51: 74 variegata, Lacuna 38: 18; 50: 48 variegata, Mangelia (Bela) 50: 47, 49; 58: 100 variegata nitens, Mangelia 58: 100 variegata, Oliva 42: 11 variegata, Urocoptis, see U. poeyana v. variegatum, Heliacus 46: 110 varicgatus, Cydotus 42: 68 variegatus, Spondylus 51: 39 varilineata, Tellina (Scissula) 56: 79, pi. 8 varium, Bittium 37: 54; 58: 61 Vasum 52: 43 caestus 37: 123; 45: 77; 52: 46 ceramicum 60: 56 floridanum 53: 82. pi. 10 muricatum 35: 120-1; 52: 28; 53: 82 turbinellum 60: 56 vatan, Ostrea 37: 52 vaughani, Pecten 47: 64 vaughani flabelluni. Pecten 47: 64 vaughani, Sulcocypraea 40: 18 vaun. Pecten 47. 64 vaun flabellum, Pecten 47: 63-4 vaun wythei, Pecten 47: 63 vauxae, Oreohelix, see O. yavapai v. Vayssierea 42: 108 veatchii. Helix 48: 6 vehlii, Lymnaea, see L. vahlii velata. Mactra (Mactrotoma) 37: 130 velata, Placiphorella 46: 124 velatus, Unio 37: 56 velebitica, Vitrina 42: 138 veliei, Calliostoma 56: 15 Velletia 35: 58: 38: 84-5; 39: 46, 114-5 lacustris 38: 84 vellicatus. Donax 40: 53 velox, Thecacera 45: 32 velum, Solemya 56: 59; 58: 56, 137-40; 59: 97 Velutina cryptospira 51: 103 laevigata 35: 87: 38: 27; 39: 132; 50: 48: 54: 3 lanigera 54: 3 rubra 59: 103 undata 35: 32; 39: 123 velutina, Alcadia 40^ 88 velutina, Aquebana 52: 143; 54: 58-9, 61, pi. 5 velutina, Helix 54: 59 velutina, Suavitas (Aquebana) 54: 59 vendreyesiana, Strobilops 35: 91 vendryesi, Pleurodonte, see P. sloaneana v. Venericardia 47: 116; 51: 92; 56: 140; 58: 118 borealis 36: 60; 40: 24; 56: 60, 142 crebricostata 38: 24 cribraria 51: 92 cuvieri 37: 128 (Cyclocardia) nodulosa 58: 118 novangilae 40: 24 perplana 58: 57 tridentata 58: 57, 140 venerina, Cyphoxis 42: 113 Venerupis (Protothaca) grata 53: 108 laniellifera 44: 93; 55: 110; 56: 42 (Protothaca) staminea 53: 108 Venerupsis oblonga 37: 129 venezuelensis, Fossula 57: 89, pi. 10 venosa, Chama 47: 83 venosa. Microcystis 38: 82 ventonensis, Pecten 50: 57 ventricosa, Cardita 53: 22 ventricosa, Cipangopaludina 56: 127 ventricosa cathayensis, Cipangopaludina 56: 127 ventricosa patris, Cipangopaludina 56: 127 ventricosa wingatei, Cipangopaludina 56: 127 ventricosa, Clausilia 50: 18 ventricosa, Helicella 37: 33 ventricosa, Lampsilis 36: 101; 39: 111, 113; 44: 20, 90, 130; 46: 107; 49: 80; 54: 9; 59: 110 -- see also L. ovata v. ventricosa canadensis, Lampsilis 35: 131; 41: 92; 42: 53; 44: 48 ventricosa lurida, Lampsilis 42: 53 ventricosa, Mactra 38: 100 ventricosa, Unio 51: 49 ventricosa, Urucoptis 55: 70 ventricosa. Vertigo 41: 135; 47: 9, 139; 50: 121; 51: 57 ventricosa elatior. Vertigo 40: 113 ventricosula, Streptostyla 55: 60 ventricosum, Pisidium 37: 22; 38: 10; 54: 144; 57: 46; 59: 25 ventricosus cohongoronta, Lampsilis 44: 19-20 ventricosus, Pecten 37: 128 ventriculus, Cypraea 52: 2, 7, 105; 57: 27. 83-4 Ventridens 58: 128; 60: 94 -- also as subgenus of Zonitoides acerra 46: 58-9, 91 decussata, see gularis d. demissus 46: 59; 47: 149: 53: 86 elliotti 46: 58-9, 91 gularis 46: 59; 47: 147; 53: 86 gularis decussata 45: 139 intertextus 46: 59; 48: 106; 53: 86; 54: 88-9: 55: 14; 57: 135, 137; 59: 90-1 ligerus 44: 17: 53: 86; 54: 142; 58: 63, 126-8 suppressus 53: 47, 86 suppressus virginicus 53: 85 virginicus, see suppressus v. ventrosa, Hydrobia 60: 103 ventrosa carinata, Hydrobia 60: 103-4 323 Ventrosus INDEX TO ventrosus, Spiraxis (Pseudosubulina) 52: 132-3; 53: 94, pi. 5 venturensis, Helminthoglypta, see H. cuyamacensis v. venulata, Oliva 57: 5 Venus 45:74; 55: 74 albida 37: 45 alveata 51: 94 angulosa 37: 46 bisecta 41: 130 campechensis 36: 11 campechiensis 37: 56; 38: 93; 39: 84, 94; 41: 120-1; 43: 35; 49: 132-3; 54: 21; 57: 68; 58: 58; 60: 34 cancellata 49: 119; 51: 94 caperata 37: 46 casina 37: 47 cassina 37: 47 chama granosa 37: 47 chione 37: 47 chionea 37: 47 cingenda 51: 94 depyga 37: 47 erpina 37: 47 erycina 37: 47 fenestralis 37: 48 gari 37: 48 granosa, see chama g. grata 51: 49 grus 49: 119 listeri 49: 119 mercenaria 38: 49; 41: 12, 14-5, 120-1; 42: 102; 49: 132; 50: 5, 67; 56: 60, 142; 57: 67; 58: 58, 71; 59: 97; 60: 34 mercenaria notata 38: 49; 41: 120-2; 56: 142; 58: 58 moneta 37: 49 mortoni 36: 11 notata, see mercenaria n. pagona 37: 50 paphia 49: 119 pensylvania 37: 50 pensylvanica 37: 50 pygmaea'49: 119 quadrangularis 55: 74 squamosa 37: 51 subimbricata 46: 109 subrugosa 45: 78 trapezoidalis 60: 71 versura 37: 52 vulnerata 46: 76 venusta, Lithasia 35: 59 -- see also L. geniculata v. venusta, Nassa (Phrontis) 58: 100 venusta, Pharaonella 55: 2 venusta. Varicella (Euvaricella) 49: 26; 55: 26 vera, Vivipara 50: 134 veracruzensis, Cerithidea, see C. pli- culosa v. veranyi, Abralia 40: 140 verbeeki, Nassa 59: 107 verecunda, Helicina 48: 54 veredentiens, Callistochiton 58: 101 vermeta, Succinea 40- 55, 119 Vermetes 58: 97 centiquadratus 52: 46 Vermetus 46: 75 vermicula, Bulimus 44: 33 vermicula, Columna 44: 33 Vermicularia pellucida 52: 46 spirata 37: 55; 38: 62; 39: 86; 58: 61 vermicularis, Gyraulus 42: 105, 125; 43: 59; 47: 3; 48: 140-1; 53: 127; 54: 29, 54 vermicularis albolineatus, Gyraulus 47: 78, pi. 6 vermicularis hendersoni, Gyraulus 42: 104 vermicularis. Planorbis 37: 79; 41: 93, 119-20; 42: 120-1; 44: 110 vermicularis, Planorbis (Gyraulus) 48: 48 vermiculata. Helix (Otala) 41: 139 vermiculata, Otala 57: 105 vermiculatus, Naesiotus, see N. quitensis v. Vermiculum anellum 37: 42 vermilionensis, Helisoma, see H. corpu- lenta v. vermontanum, Sphaerium 38: 10; 57: 95 vernicosa. Bulla 60: 56 vernicosus, Musculus 38: 24 veronica, Cratena 50: 142 Veronicella 39: 3-4, 13, 16-7; 40: 133-4; 42: 44, 46; 44: 133; 49: 4; 50: 139; 60: 104 bleekerii 39: 15; 44: 137 brasiliensis 41: 129 carinata 41: 129 discrepans 41: 129 dubia 44: 134 (Leidyula) floridana 39: 16; 42: 45-6; 44: 131; 48: 88 fuscescens 41: 129 gracilis 41: 129 gravieri 39: 14-5 jamaicensis 39: 17; 48: 88 (Leidyula) kraussii 42: 46; 48: 84, 88 (Leidyula) kraussii trichroma 48: 84, 88 laevis 39: 13, 16; 42: 44, 46; 48: 84, 88; 49: 107 laevis schivelyae 42: 44 leptothali 48: 83-4. 88, pi. 3 leydigi 38: 80 moreleti 39; 16; 42; 45-6 pardalis 41: 129 (Sigmataxis) paupercula 48: 85 (error for Varicella?) ribeirensis 41: 129 rosilla 41: 129 schivelyae 48: 88 -- see also laevis s. sloanii 39: 16; 48: 88 (Tenacipes) tenax 44: 131, 133-4 trichroma, see kraussii t. Veronicellus 39: 13 324 THE NAUTILUS Vibex verrilli, Strombus, see S. gigas v. verrilli, Succinea 40: 114, 119; 43: 134 verrucosa, Cypraea 37: 52 verrucosa, Lithasia 41: 59-60; 43: 6; 47: 151; 56: 132 verrucosa, Tritogonia 40 : 66 verrucosa, Quadrula 36: 47; 39: 90 verrucosuni, Crucibuluni 39: 86 verrucosus, Conus 39: 84; 49: 136, 139; 55: 44; 57: 105-6 verrucosus vanhyningi, Conus 57: 106 verrucosus, Unio 38: 29 versicolor, Amphidromus 60: 62, 64, 66 versicolor aborlanensis, Amphidromus 60: 64 versicolor demesai, Amphidromus 60: 63, 65 versicolor everetti, Amphidromus 60: 64 versicolor negrosensis, Amphidromus 60: 65 versicolor, Amphissa 36: 18; 37: 42; 50: 47; 53: 22 versicolor, Columbella 60: 56 versicolor, Donax 38: 51 versicolor, Liguus 38: 61 -- see also L. testudineus v. versicolor, Nassarius 52: 45; 55: 122 versicolor. Nerita 35: 121; 38: 61; 54: 22, 67 versicolor, Polymita 37: 86 versicolor, Tellina 36: 60; 45: 111; 52: 28; 56: 144 versura, Venus 37: 52 versus, Donax 58: 99 vertagus, Cerithium 60: 55 Versutaxis -- subgenus of Spiraxis Vertigo 36: 63-4; 38: 123; 40: 107; 44: 10; 45: 117; 47: 2; 48: 47; 50: 119; 53: 79, 129; 59: 121 alpestris 41: 42; 53: 128-30; 54: 74 arctica 53: 128-30 arizonensis, see gouldii a. basidens, see coloradensis b. bollesiana 48: 59 castanea, see modesta c. clappi 50: 98 coloradensis basidens 40: 113; 42: 124; 43: 134; 44: 9-10 Columbiana 36: 38; 47: 112 concinnula 37: 79; 44: 114; 59: 122 corpulenta, see modesta c. elatior 41: 135; 50: 13. 98 -- see also ventricosa e. gouldii 40: 47, 58; 41: 135; 44: 22, 135; 50: 98; 51: 105; 52: 94; 53: 47 gouldii arizonensis 54: 117; 55: 143 gouldii loessensis 41: 135 hibbardi 51: 126-7 hinkleyi 59: 121 hoppii 38: 93; 40: 112; 53: 127, 129 loessensis 44: 22 -- see also gouldii 1. milium 37: 66, 68; 40: 16; 42: 21; 50: 98; 51: 127 (Angustula) milium 57: 128; 60: 98 minuscula 57: 127-9 modesta 37: 79; 38: 65. 123; 40: 54, 77, 112; 43: 62, 134; 46: 128; 50: 88; 53: 64, 77, 128-30, 133; 58: 79 modesta castanea 40: 113 modesta corpulenta 44: 114 modesta parietalis 40: 113; 56: 53 modesta ultima 50: 88; 53: 133 morsei 50: 98 numellata 38: 7 oscariana 37: 66; 42: 21; 50: 98 parietalis, see modesta p. ovata 37: 66; 38: 42; 40: 54; 42: 21; 43: 68; 44: 110; 45: 117; 48: 34; 50:98; 51: 130; 52: 15; 53: 77, 88; 57: 131-2; 58: 69 parvula 57: 127-9 pentodon 59: 28 pygmaea 36: 64; 47: 8; 50: 121; 51: 57; 60: 98-9 substriata 40: 106 torrei 48: 34 tridentata 40: 16; 50: 98, 121; 51: 57 ultima, see modesta ultima ventricosa 41: 135; 47: 9. 139; 50: 121; 51: 57 ventricosa elatior 40: 113 wheeleri 43: 106 Versutaxis 53: 9, 11, 13, 16, 92 vescoiana, Anodonta 53: 141; 55: 20 vesicula, Haminoea 50: 47 vesicula, Taras 60: 57 vesiculare, Pisidium 35: 116; 59: 25 vesicularis, Lampsilis 41: 53 vespertilio, Voluta 37: 52 vespertina, Neritina 50: 111 vestita, Amicula 39: 76; 50: 142 vestitum, Cymatium 46: 45 vestitum, Pleurocera 58: 43 vestitus, Chiton 39: 75-6 veternior, Polygyra 50: 128 veternus, Lioplacodes 44: 35 Vetulonia 59: 53 jeffreysi 59: 53 vetulum, Campeloma 44: 35-6 vexans, Streptostyla 55: 56, 60 Vexilla turben kanaka 36: 123 vexillum 36: 123 vexillifera, Melibe 35: 50 vexillum, Liguus 38: 61 vexillum, Vexilla 36: 123 Viana 40; 35; 41: 22 vibex, Alectrion 37: 54; 38; 50; 39: 85; 43: 65 vibex, Cantharus 58: 28 vibex marjoriae, Cantharus 58: 28 vibex, Casmaria 58: 38 vibex. Cassis 36: 121; 41: 72; 55: 2 325 Vibex INDEX TO vibex mexicana, Cassis 46: 112 vibex, Micromya 37: 103, 105; 49: 81 vibex nigrina, Micromya 37: 103-4 vibex, Nassa 51: 93 vibex, Nassarius 56: 141; 58: 62 vibex, Unio 37: 104 vicina, Geomelania 48: 87 vicina, Varicella (Varicellina) 49: 27 vicina portlandensis, Varicella (Varicelli- na) 49: 23-4, 27, pi. 2; 55: 27, pi. 2 victor, Cerion 42: pi. 4 vignalensis, Urocoptis 40: 74-5, 91; 41: 80-1 vignalensis obscura, Urocoptis 40: 91 vilasensis, Stagnicola, see S. emarginata v. Vilitas -- subgenus of Hyalosagda villosa, Lampsilis 47: 126-7 viminea, Bothrocorbula 40: 47 viminea, Corbula 40: 45 vinalense, Chondropoma 40: 89 vincta, Helix 51: 36 vincta, Lacuna 35: 86; 38: 16, 50; 39: 133; 56: 59, 143; 58: 21 vincta fusca. Lacuna 38: 50 vincta pertusa. Lacuna 35: 87 vinctus, Pyrgulopsis 48: 15 vinea, Turbonilla 56: 144 vinosa, Cypraea 40: 128-9 vinosa. Microcystis 41: 32 vinosus, Chrysodomus 51: 125 violacea, Lora, see L. bicarinatav. violacea, Urocoptis 41: 81 violaceus, Drymaeus 58: 30 violaceus, Solecurtus 37: 129 virens, Fluminicola 48: 15 virens, Valvata 48: 48; 53: 140 virens, platyceps, Valvata 55: 131 virescens, Amphidromus 37: 84, pi. 5 virescens, Bulinius 37: 84-6, 88 virescens. Bulla 46: 140 virescens, Fissurella (Cremides) 37: 126; 46: 45 virescens. Haminaea 37: 41; 46: 140-1: 47: 37, 53-4 virescens rosacea, Haminoea 47: 52-3 virescens, Macrochlamys (Pseudiieli- carion) 42: 67 virescens, Megaustenia, see M. siamense v. virgata, Anculosa 35: 10, 12; 46: 39 virgata, Helicostyla 57: 71 virgata maxwellsniithi, Helicostyla 46: 65 virgata, Helix 36: 45: 59: 120 virgata. Physa 37: 79; 45: 139; 52: 138; 56: 55 virgata, Physella 42: 125: 43: 60 virgatum, Choanoponia, see C. chevalieri v. virgatus, Conus 57: 4 virginea, Chersina 47: 147 virginea, Cytherea 35: 134 virginea, Nerita 37: 52 virginea, Neritina 38: 61; 45: 68; 46: 93; 47: 50-1; 50: 112; 51: 40-2, pi. 5; 52: 51, 53-4; 54: 21-2, 66, 98. 103-6 virginea gabbii, Physa 55: 18 virgineum, Buccinum 37: 52 virginiae, Tritiaria (Antillophos) 56: 65, pi. 3 virginiana, Bellaspira 54: 52 virginiana, Ostrea 38: 121 virginica, Goniobasis 35: 10; 43: 34, 88; 45: 59-61; 47: 35; 48: 34; 54: 36; 59: 110-2 virginica multilineata, Goniobasis 59: 111 virginica, Melania 51: 92 virginica, Ostrea 37: 53-4; 38: 49, 121; 41: 12, 14-5, 46; 43: 35; 49: 1, 37, 132; 52: 68, 107; 53: 35; 54: 21; 56: 141; 57: 67; 58: 57; 60: 19, 34, 75 virginica californica, Ostrea 41: 46 virginica. Retinella 53: 47 virginica, Tellina 59: 86-7 virginicum, Pisidium 35: 105; 40: 26; 52: 131; 58: 52; 59: 86-7 virginicus, Somatogyrus 53: 126-7 virginicus, Ventridens, see V. suppressus v. virginicus, Zonitoides, see Z. suppressus v. Virgo, Strobilops.35: 91; 36: 25; 42: 135 -- see also S. labyrinthica v. Virgo, Tellina 56: 79, pi. 8 Virgula 36: 7 virgula, Creseis 47: 55-6 virgula conica, Creseis 47: 55-6 viridans, Achatinella 42: 71 viride, Trypanostoma 43: 10 viridis, Acanthochites 35: 83-4 viridis. Helix 46: 71 viridis, Liocyma 52: 111 viridis, Lobiger 55: 39-40 viridis, Melania 35: 10; 43: 15-6 viridis. Neritina 38: 61; 51: 67 viridis, Oxynoe 56; 80 viridis. Smaragdia 50: 110; 52: 28; 57: 106 viridis viridemaris, Smaragdia 57: 106 viridis weyssei, Smaragdia 57: 106 viridis, Solen 54: 127; 58: 59 viridula, Admete 51: 116 viridula, Anculosa 35: 11 viridula, Bela 51: 116 viridula; Dcfrancia 51: 115. 117 viridula. Diadora 46: 121 viridula, Fissurella 38: 60; 46: 121 viridula, Patula, see P. ruderata cronkhitei v. viridula, Streptostyla 40: 130-1: 55: 59 viridula, Tegula 37: 126; 52: 46 viriduluni. Tritonium 51: 116-7 viriduni. Buccinum 47: 93 vitellina, Erato 50: 48 vitellus, Cypraea 50: 82; 51; 3; 52: 3, 7, 105; 55: 2; 57: 83-5: 58: 132. 144 326 THE NAUTILUS Viviparus vitellus, Neritea 37: 52 Vitrea 36: 39; 43: 54, 96, 122; 44: 104; 60: 96 alaskana 43: 61 aldrichiana 42: 90 binneyana 40: 77 capsella 39: 80; 40: 66 carolinensis 35: 43 cellaria 44: 71 chersinella 43: 114 cryptomphala 35: 43 crystallina 35: 40 cumberlandiana 43: 106 dalliana 41: 52 decolorata 57: 47 gabrielina 43: 114 hamnionis 36: 25: 37: 97; 40: 58; 41: 92: 43: 43-4 indentata 35: 43; 37: 97; 40: 66; 42: 124; 43: 43, 55 johnsoni 43: 96, 122 lamellidens 35: 43 lucida 35: 40 miguelina 35: 39 multidentata 35: 43: 39: 80; 42: 88 orotis 43: 113-4 radiatula 41: 42; 53: 133 rhoadsi 44: 128 sculptilis 35: 43 shepardi 43: 113-4 (Paravitrea) smithi 43: 106 spelaea, see subrupicola s. subrimata 45: 36 subrupicola spelaea 43: 96, 123 vitrea. Cobresia 42: 137 vitrea, Pteria 56: 64 vitreuni, Dacrydium 54: 5 vitreum, Leptopoma 50: 54 vitreuni, Punctum 53: 47 vitreus. Spiraxis, see S. subtilis v. Vitrina 37: 79; 38: 123; 42: 136, 139; 43: 54; 54: 2 alaskana 35: 36; 37: 79: 38: 125; 41: 20: 42: 124; 43: 55, 58; 44: 114; 46: 128; 47: 2; 48: 47; 53: 63, 131-3; 54: 29, 31, 96, 117; 55: 143-4; 56: 53 annularis 50: 10 bonellii 42: 138-9 conoidea 42: 138-9 diaphana 42: 139 elongata 42: 138 lamarcki 42: 138-9 linipida 40: 53-4, 58, 113; 42: 15, 135- 6; 43: 81, 133; 48: 57-8; 50: 116 major 42: 138-9 marcida 37: 71 paulucciae 42: 138-9 pellucida 42: 136, 139 praestans 43: 51 semilimax 42: 138-9 subcarinata 42: 138 velebitica 42: 138 vitrina, Happia 41: 125 Vitrinella 35: 61; 57: 97; 59: 66-7, 80, pi. 2; 60: 8-9, 13-4, 16 (Tomura) bicaudata 60: 14-5, 36 blakei 57: 97, pi. 9 filifera 60: 15, pi. 2 floridana 60: 16, pi. 2 guaymasensis 55: 121. 124-5, pi. 8 helicoidea 59, pi. 2; 60: 13, 15-6, pi. 2 interrupta 59: 59 multicarinata 59: 81 oldroydi 55: 124 praecox 60: 14, pi. 2 smithi 55: 124 terminalis 60: 17, pi. 2 tiburonensis 55: 121, 124, pi. 8 Vitrinizonites latissimus 35: 43; 40: 3, 132, 136; 45: 138; 46: 58, 91; 52: 126 latissimus uvidermis 45: 138-9 uvidermis, see latissimus u. Vitrinula 59: 66-7 Vitrinus 42: 137 pellucidus 42: 137 Vitrinopugio 42: 138-9 elongatus 42: 138 Vitta 50: 111 vittata, Anculosa 58: 43 vittata, Goniobasis 41: 58 vittata, Lithasia 41: 58 vittatella, Goniobasis 42: 32 Vittina 50: 111 Vittochlithon 50: 112 vitulinus, Conus 55: 2; 60: 56 vivens, Potamopyrgus, see P. ernesti v. Vivipara, see Viviparus vivipara. Helix 56: 124 vivipara, Paludina 50: 17, 19; 51: 48 Viviparus 38: 134; 39: 109-11; 40: 12-4, 133; 41: 52-4. 86; 44: 35-6. 39, 70; 50: 17; 53: 36;55: 4, 69, 82-5, 89, 91-2, 115- 8, 126; 56: 124-6, 129, 138; 58: 3 altior, see georgianus a. bengalensis 55: 115, 118 (Bellamya) capillatus 56: 129 chinensis 59: 64 chui 56: 126 compactus, see contectoides c. contectoides 36: 105:^2: 125. 129; 46: 100, 106, 138; 47: 18, 20, 60; 50: 18- 9; 54: 141; 55: 84-6, 91, 116-8; 58: 3; 59: 27, 110 contectoides compactus 55: 86 contectoides goodrichi 47: 19, pi. 3; 55: 85. 91 contectoides impolitus 47: 20; 55: 85 contectoides limi 47: 20; 55: 86 contectus 56: 125 couesii 44: 36 crassus 55: 115 emmonsi 44: 36 fasciatus, see georgianus f. formosa, see leidyi f. 327 Viviparus INDEX TO georgianus 38: 62, 110, 135; 55: 3. 83, 88-90, 125-6 georgianus altior 55: 88-90 georgianus fasciatus 55: 88 georgianus limnothauma 55: 89 georgianus walkeri 55: 88-90, 115-8 georgianus wareanus 55: 88, 90 gilli 44: 36 gillianus 44: 36 goodrichi, see contectoides g. grahami, see quadratus g. haldemaniana 55: 89 haleanus, see subpurpureus h. heudei, see quadratus h. illinoisensis, see intertextus i. inornata 50: 136 intertextus 55: 83, 86-7, 90 intertextus illinoisensis 55: 86-7 japonicus 36: 105; 45: 136 jepseni 50: 128 leidyi 44: 36 leidyi formosa 44: 36 limi, see contectoides 1. limnothauma, see georgianus 1. lineata 50: 137 malleatus 36: 105; 42: 127-9, 141-2; 46: 100-1; 48: 33; 54: 69; 55: 102, 117 ningkuoensis 59: 66 paludinaeformis 50: 127 pingi 59: 64, pi. 7 praerosus 56: 126 quadratus 59: 65-6 quadratus grahami 59: 65, pi. 7 quadratus heudei 59: 66 raynoldsanus 44: 36 raynoldsianus 44: 36 retusus 50: 127 subglobosa 44: 36 subpurpureus 44: 70; 55: 87-8 subpurpureus haleanus 55: 87-8 subpurpureus texanus 55: 87 suifuensis 59: 64, pi. 7 texanus, see subpurpureus t. trochiformis 44: 35-6 troostianus 55: 86 (Bellamya) unicolor 56: 129 vera 50: 134 viviparus 42: 125; 55: 84, 116; 56: 125 walkeri, see georgianus w. waltonii 55: 88, 126 wareanus, see georgianus w. wyomingensis 50: 128 viviparus, Viviparus 42: 125: 55: 84, 116; 56: 125 vivisicata, Helix 37: 52 voeltzkowi, Vaginula 39: 14; 44: 136 volcana, Fissurella 37: 43 volcano crucifera, FissureUa 36: 18; 37: 43 Volsella 44: 103; 45: 33-4, 107 americana 59: 68 tulipa 59: 67-8 voluminosa, Polygyra (Stenotrema) 46: 16-7, 58, pi. 2 Voluta 35: 62; 37: 45; 43: 72; 55: 78; 60: 27 ancilla 46: 112 bidentata 40: 125 capucinus 37: 46 cardinalis, see mitra c. cymbiu 37: 47 cymbium 37: 47 deshayesi 46: 112 ebraea 40: 144 episcopalis, see mitra e. fastus 37: 48 hargravesi 39: 69 ispidula 37: 49 junonia 37: 56; 38: 95 lineata 45: 55 livida 37: 49 maculata 37: 49 mitra cardinalis 37: 49 mitra episcopalis 37: 45, 49 mitra papalis 37: 49 nucea 37: 49 nyridotys 37: 50 oliva 37: 50 papalis, see mitra p. porphyria 37: 50 pyrum 37: 50 scapha 55: pi- 7 vespertilio 37: 52 voluta, Oleacina 55: 53 Volutaxis 53: 9-12. 52, 92 -- subgenus of Spiraxis volutella, Olivella 45: 75, 79; 52: 45 Volutharpa morchiana 50: 101 Volutomitra 55: 79 Volutopsius fragilis 57: 142 Volutospina 40: 144 Volvaria -- subgenus of Marginella volvariodes, Oliva, see O. sidelia v. Volvidens 48: 135 tichostoma 48: 135 (Trifaux) triodon 48: 135, 137, pi. 8; 49: 52 volvoxis, Polygyra, see P. septemvolva v. Volvulella cylindrica 55: 122 tenuissima 59: 104 Volvulus 41: 108 bidens 41: 108 volvulus, Aperostoma 57: 64 volvulus, Cyclophorus 37: 91; 56: 137 volvulus, Cyclostoma 56: 137 volvulus. Cyclostrema 57: 64 Vortex 41: 108; 59: 119 carocolla 41: 108 lapicidus 59: 119 vortex, Microphysa 50: 18 vortex, Thysanophora 38: 62 Vorticifex binneyi 47: 27 concava, see tryoni c. laxus 47: 26 tryoni concava 47: 27 328 THE NAUTILUS Willettia voyanum, Haplotrema (Ancotrema) 54: 132, pi. 9 voyi, Spisula (Hemimactra) 38: 101 vredenburgi, Pecten (Chlaniys) 50: 55 vulcania, Cryptaxis 35: 102 vulcania, Leptaxis 35: 101 vulgaris, Cucullaea 42: 114 vulgaris, Cyphoxis 42: 114 vulgaris, Lymnaea 50: 133 vulgata, Patella 46: 103 vulgata saxipotens, Plcbecula 35: 14 vulgatus, Mesomphix, see M. perlaevis v. vulnerata, Venus 46: 76 vulpina olivacea, Achatinella 38: 78 vultuosa, Hua 57: 21 waccamawensis, Conus 44: 105 wadei, Dentalium 40: 142 wagneri, Bulimus 60: 57 wagneriana. Area 59: 144 wahlamatensis, Anodonta 41: 76 waikikiensis, Cypraea 57: 23 Wainuia 45: 142 waldense, Stenotrema 52: 54-5 walkeri, Actinonaias (Disconaias) 36: 36 walkeri, Amnicola 40: 50; 41: 93; 42: 18 walkeri, Ancylus 44: 31 walkeri, Ashmunella 36: 120: 40: 4; 46: 19 walkeri, Gyraulus, see G. parvus w. walkeri, Gyrotoma 58: 48, 67 walkeri, Liguus, see L. fasciatus w. walkeri, Paravitrea 42: 88-90 walkeri dentata, Paravitrea (Paravi- treops) 42: 88, 90 walkeri, Physa 36: 25 walkeri, Pleurocera 42: 144; 53: 74; 56: 132 walkeri, Sphaeriuni 57: 94, 96 walkeri, Sonorella 40: 4 walkeri, Stoastomops 37: 89: 48: 10 walkeri, Valvata, see V. perdepressa w. walkeri, Viviparus, see V. georgianus w. walkeriana. Helniinthoglypta 44: 30; 54: 124-5 walkeriana. Stagnicola 39: 119-20: 45: 139-40 Walkerola 38: 73, 75 wallalensis, Haliotis 60: 92 wallbergi, Aspatharia (Spathopsis) 53: 54 walteri, Crassispira 60: 61 waltonii, Viviparus 55: 88, 126 waluensis, Pecten 47: 62-3 Wanga 57: 20 debilis, see scrupca d. dulcis 57: 21 henriettae 57: pi. G hsiii 57: 21 lauta 57: 21 napoensis 57: 21 reticulata 57: 21 scrupea 57: 21 scrupea debilis 57: 21 wanlessi, Polygyra.see P. multilineata w. wardi, Quadrula, see Q. metanevra w. wareanus, Viviparus, see V. georgianus w. warreniana, Physa 49: 32 -- see also P. sayi w. warthini, Lymnaea, see L. caperata w. wasatchensis, Lymnaea, see L. stagna- lis w. wasatchensis, Unio 50: 127 wascoense, Pristiloma. see P. chersinella w. wascoensis, Tonites 43: 96, 123 wassatchensis, Patula, see P. idaheonsis w. watermani, Fusinus 51: 91 watermani, Fusus 49: 139; 50: 22 watermani, Olivella 54: 64 Watsonia lesliei 51: 87 Watsoniella 51: 87-8 webberi, Leiostracus 53: 28, pi. 7 webbiana, Lampadia 35: 102 webbianus, Unio (Elliptio) 47: 94, pi. 10 webbianus hartii, Unio (Elliptio) 47: 95, pi. 10 weberi, Cyclostrema 59: 56-7 weberi, Parviturbo 59: 55 weberiana, Greohelix, seeO. peripherica w. weeksiana, Papuina 59: 94, pi. 9 welchi, Pleurodonte (Caracolus) 42: 79, pi. 4 westmorelandensis, Poteria 48: 87 wetherbyi, Retinella, see R. carolinensis w. weyrauch, Thaumastus (Scholvienia) 57: 121 weyrauchi, Bostryx 57: 87, pi. 9 weyrauchi, Bostryx (Platybostryx) 57: 121 weyrauchi, Nenia 58: 82, pi. 3 weyrauchi, Neopetraeus 57: 88, pi. 9 wheatleyi, Goniobasis 58: 45 wheatleyi, Planorbula 58: 12-3. 32 wheatleyi, Polygyra 35: 42: 45: 138. 46: 58-9, 91 wheatleyi, Retinella 50: 121; 51: 56-7, 59; 53: 85 wheeleri. Vertigo, 43: 106 whiteavesi, Goniobasis, see G. tenui- carinata w. whiteavesi, Helisoma 46: 7 whiteavesii, Astarte, see A. subaequila- tera w. Whitneyella 40: 144 whitneyi. Helix 44: 98 whitneyi, Polita 37: 132 wiegmanni, Linatella 36: 51 wiegmanni, Papuina 49: 91 wilcoxi, Maconia 43: 24, pi. 1 wilhelmi, Mekongia 56: 129 wilhelmi, Microconus 54: 57 Wilkinsonaea 48: 14 bensoniana 48: 14 willcoxi, Tethys 35: 80; 50: 95-7; 58: 62-4 willcoxi perviridis, Tethys 58: 62-4 willetti. Helniinthoglypta 51: 16 willetti, Odostoniia (Evalea) 38: 26; 51: 102 Willettia 53: 31 -- subgenus of Alvania 329 Williamia INDEX TO Williamia 59: 108 williamsi, Helminthoglypta, see H. arrosa w. williamsi, Papuina 49: 88-9, pi. 5; 50: 53-4 williamsi atalanta, Papuina 50: 53-4 wingatei, Cipangopaludina, see C. ventri- cosa w. winkleyi, Amnicola 35: 23; 36: 20; 39: 7-8 winkleyi leightoni, Amnicola 39: 6 winkleyi mozleyi, Amnicola 39: 6 winkleyi, Pyramidella 56: 144 winkleyi, Sayella 53: 44 winkleyi, Turbonilla 56: 141 winnebagoense, Valvata 53: 140 winnebagoensis, Lymnaea (Galba) 36: 22-4 winslowae, Alvania 41: 141 winslowensis, Oreohelix, see O. houghi w, winslowi, Helisoma, see H. trivolvis w. winslowi, Planorbis, see P. trivolvis w. wisconsinense, Sphaerium 57: 95 wisconsinensis, Helisoma, see H. cam- panulatum w. wisconsinensis, Planorbis, see P. cam- panulatus w. wisconsinensis, Stagnicola, see S. emar- ginata w. wolcottiana, Micrarionta 35: 48; 36: 139; 43: 39-40, 116; 58: 72 -- see also M. indioensis w. wollastoni, Cryptaxis 35: 102 wollastoni, Leptaxis 35: 103 wollastoni minor, Leptaxis 35: 103 woodiana, Anodonta 55: 20-1 woodianus ambubuquensis, Eucyclophorus 52: 92 woodianus isabelanus, Eucyclophorus 52: 92, pi. 7 woodringi, Goniobasis, see G. kettle- manensis w. woodringi, Littoridina 48: 16 woodringi, Pisidium 59: 34 woodwardianus, Unio 37: 56-7 woolseyi, Conus 60: 1, pi. 1 wossnessenskii, Mopalia 38: 28 -- see also M. ciliata wr wyomingensis, Lymnaea 47: 2, 122 -- see also L. palustris w. wyomingensis, Stagnicola, see S. palus- tris w. wyomingensis, Viviparus 50: 128 wythei, Pecten 47: 63 -.- see also P. vaun w. wrighti, Sphaerium 57: 95 wrighti, Urocoptis 55: 70 wrlghtiana, Lampsilis 41: 139. pi. 2; 47: 127 wroblewskii, Epitonium (Opalia) 50: 47 wroblewskii, Opalia 51: 4-5, pi. 2 xanthia, Pteria 56: 64, pi. 3 Xanthonyx 56: 37, 82 cordovanus 56: 38-40 potosiana 56: 37 salleanus 56: 40 sumichrasti 56: 39-40 xanthostigmata, Peristernia 36: 122 xanthus, Liguus, see L. fasciatus x. xantusi, Bulimus 50: 135 xantusi, Cyclostrema 55: 122 Xenodiscula 54: 61 Xenogalea 41: 72 Xenophalium 41: 72 hedleyi 41: 72 Xenophora 38: 91; 47: 128, 145; 49: 141- 2; 50: 30; 51: 105; 55: 74; 59: 75-6 conchyliophora 52: 28 robusta 47: 145; 57: 37, pi. 7 Xenothauma 51: 24 Xerophila 40: 107 xerophila, Micrarionta, see M. indioensis x. Xesta 50: 30; 51: 104 rugosissima 50: 30 xiengensis, Amphidromus 43: 52 ximenez, Bulimulus 46: 50-1, 110 Xylophaga 35: 61; 56: 61, 68 abyssorum 56: 68 atlantica 56: 68, pi. 6 dorsalis 56: 68 xystera, Ampelita 56: 49 yaguaronis, Diplodon 44: 33 yallahense, Choanopoma 48: 65 yamanii, Lora 50: 91 yarmouthensis, Polygyra, see p. hirsutay. yatesi, Ammonitella 36: 141 yavapai, Oreohelix 40: 101 yavapai angelica, Oreohelix 35: 48; 40: 101 yavapai clutei, Oreohelix 49: 69 yavapai cumingsi, Oreohelix 49: 69 yavapai extremitatis, OreohelLx 40: 101 yavapai fortis, Oreohelix 40: 101 yavapai vauxae, Oreohelix 43: 144 Yoldia 38: 24, 51; 56: 143 arctica 36: 107 ensifera 49: 14; 51: 100; 60: 91 gardneri 49: 14 glacialis 51: 9 limatula 35: 31; 58: 56 montereyensis 38: 24 myalis 38: 24; 40: 22 sapotilla 40: 23 scissurata 60: 91 thraciaeformis 40: 23; 60: 91 Yunquea 54: 58 denselirata 54: 57-8, 62, pi. 4 yoldiformis, Macoma 44: 92; 51: 125 yporanganus, Strophocheilus 43: 77 yrekaensis , Goniobasis 48: 95, 97-99, " 131. 134' yrekaensis obscura, Goniobasis 48: 98 yucatanensis, Streptostyla 55: 60 yucayum, Chondropoma 40: 89 yukonense, Pecten (Variamussium) 50: 58 yukonensis, Pecten (Entoliuni) 50: 58 330 THE NAUTILUS Zonitoides yzabalensis, Elliptio 35: 26 yzabalensis, Planorbis 47: 65, 67 zaca, Mitra 47: 145: 48: 90-1 zacalles, Cyclostrenia 59: 9, 57 zacalles, Parviturbo 59: 57 Zachrysia 52: 38-9 petitiana 52: 38 rangelina 52: 38 Zacoleus idahoensis 43: 126 zaleta, Polygyra 35: 42; 39: 28; 40: 66; 43: 118; 44: 17, 66: 46: 91; 47: 147; 48: 36. 57; 53: 86 zaletus, Mesodon 58: 127; 60: 78-80 Zalophancylus 39: 18-9, 75 niorani 39: 18 zanclaea, Bifrontia 48: 129; 59: 9 zanoeta. Olivella 47: 47 Zaphysema 48: 136; 54: 61 buddianuni 49: 54 (Meiophvsema) lanielliferum 48: 136; 49: 54" niacmurrayi 49: 54 mundum 49: 54 olivaceum 49: 24, 54, pi. 2 tenerrimum 48: 136; 49: 24. 54 tunicatum 49: 24. 54 zebra. Area 51: 94 zebra. Buccinum 59: 29-31; 60: 106-7 zebra. Bulinius 59: 29-30, 118; 60: 106 zebra fulgurat'a, Cochlitoma 35: 61 zebra obesa, Cochlitoma 35: 61 zebra, Columbella 35: 84; 58: 122 zebra, Drillia 39: 85 zebra, Glossodoris 49: 61 zebra, Lyninaea 37: 24 zebra, Neritina 45: 68 zebra, Orthalicus 60: 106-7 zebrina, Partula 42: 70 zetekella 60: 102 Zetekia denticulata 45: 51 Zetekina 60: 102 frenata 60: 102 zeteki, Polymesoda 44: 85, pi. 7 zetlandica, Alvania 39: 133 zhorquinensis, Leptarionta 43: 117 ziczac, Littorina 35: 121; 38: 61 ziczac lineatus, Littorina 35: 121 ziczac, Pecten 52: 28 zigzaciuncula, Cypraea 37: 52 zigzag, Poteria 48: 87 zigzag, Oliva, see O. reticulata z. zionis. Petrophysa 43: 59 zionis. Physa (Petrophysa) 40: 34; 43: 54, 61; 54: 32 Zirfaea 45: 52-3; 56: 143 crispata 41: 14, 30; 42: 35; 45: 52-3; 56: 143; 58: 60 gabbi 43: 51; 45: 52 pilsbryi 45: 53, pi. 3 zizyphinum, Calliostonia 56: 15 zonale. Cerithium 56: 29 zonalis, Olivella 60: 81 zonalis, Spondylus 49: 29 zonaria, Helix 37: 52 zonata, Engina 42: 40 zonata, Enzina 42: 40 zonata, Ricinula 42: 40 zonata, Urocoptis 49: 56 zonatus, Geotrochus 49: 67 zonifera, Oxystyla 53: 7 Zonites 43: 140: 44: 104; 50: 138; 60: 95 (Gastrodonta) acerra 40: 132 capsella 44: 128 cellarius 50: 137 implicans 41: 125 (Gastrodonta) lawi 40: 132 shepardi 43: 123 singleyanus 42: 87 stearnsi 43: 122 Zonitoides 36: 39; 43: 139, 144; 50: 119; 60: 94 acerra 43: 140 alachuana, see minuscula a. arboreus 35: 36. 41. 43; 36: 25. 37-8; 37: 66-7. 69, 79. 97; 39: 70-80. 124, 40: 16. 48, 54. 58, 77, 104, 113; 41: 20. 34; 42: 15. 20. 66. 91-2, 124, 135; 43: 42. 44. 55. 58. 60, 67, 81, 114, 118-9.121.133; 44: 38, 45, 88, 99, 114. 129; 45: 37, 117; 46: 58-9, 91; 47: 2, 8. 139, 147; 48: 47, 58, 81, 115; 49: 25, 100; 50: 117, 120; 51: 57, 59, 63, 106; 52: 29, 95-7: 53: 47, 86; 54: 29, 31, 88-9. 96. 111. 114. 117; 55:. 7-8, 10. 14. 32, 97, 143-4; 56: 54; 57: 132: 58: 69. 78, 110, 125, 127; 59: 28. 90-3: 60: 3, 99, lOO bermudensis 38: 7 cerinoidea cuspidata 40: 132 cookei 36: 38 cuspidata. see cerinoidea c. demissus 47: 57: 50: 120; 51: 57, 59, 106; 52: 97; 55: 8 elliotti 48: 80-1; 55: 97 excavatus 60; 94 exigua 39: 124- 40: 58 gularis 48: 81 intertextus 48: 58; 50: 120; 51: 56-8; 55: 8, 97 ligerus 48: 58; 50: 120; 51: 56-9; 52: 96 limatulus 43: 43-4, 67 minuscula 37: 33, 66-9; 38: 7; 41: 53; 42: 94; 44: 38 minusculus alachuanus 36: 105; 37: 68- 9; 41: 52 nitidus 38: 10; 40: 58; 42: 59; 43: 140; 44: 45; 47: 8; 48: 58; 50: 61: 51: 140; 52: 95: 53: 86; 56: 54; 58: 25-6; 60: 94 randolphi 55: 22 singleyana 37: 67. 69 331 Zonitoides INDEX TO THE NAUTILUS (Ventridens) suppressus 48: 80; 49: harpa 40: 113; 41: 40; 50: 18; 55: 97-8 99-100; 54: 114 Zoogenites 43: 104, 138 suppressus virginicus 49: 99-100 harpa 38: 125; 43: 62, 104: 46: 128; virginlcus, see suppressus v. 53: 132-3 zonulatus, Rhachis 51: 35 Zophos 38: 88; 54: 134 -- subgenus of zonulatus, Streptochiton 58: 102 Austroselenites Zoogenetes 41: 123 zulia, Polymesoda 44: 85 332 Photographed & Lithoprinted by BRAUN-BRUMFIELD. 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