MARINE BIOLOGICAL LABORATORY. Received Accession No. cpC-.'^ V /^ Given hy /J^a.^^iL<.<<<^^ Place, /'?^L'rr^ ^&/.:(^... *^'^o book Of pamphlet is to be removed tfocn the Iiab- opatopy uiithout the petonission of the Trustees. Committee on Publication Marcus Baker Chairman and Editor John Hyde O. H. Tittmann C. Hart Merriam Bailey Willis PROCEEDINGS OF THE Washington Academy of Sciences Vol. Ill 1901 WASHINGTON March-December 1901 3 AFFILIATED SOCIETIES The Anthropological Society of Washington The Biological Society of Washington The Chemical Society of Washington The Columbia Historical Society The Entomological Society of Washington The Geological Society of Washington The Medical Society of the District of Columbia The National Geographic Society The Philosophical Society of Washington 5 6 7 / PRESS OF THE NEW EflA PRINTING COMPANY, LANCASTER, PA. CONTENTS. PAGE. Haniman Alaska Expedition.— XX. Nemerteans ; by Wesley R. Coe . . I Mammals collected by Dr. W. L. Abbott on the Natuna Islands ; by Gerrit S. Miller, Jr., m Branner Agassiz Expedition to Brazil. — V. MoUusks from the Vicinity of Pernambuco ; by W. H. Dall 139 New birds of the families Tanagridae and Icteridae ; by Robert Ridgway i49 Harriman Alaska Expedition.— XXI. Hydroids ; by C. C. Nutting 157 Harriman Alaska Expedition.— XXII. Odonata ; by R. P. Currie 217 Harriman Alaska Expedition. — XXIII. Ascidians ; by W. E. Ritter 225 A new species of Olenellus from the lower Cambrian of York Co., Penn. ; by Atreus Wanner 267 Synopsis of the Rice Rats (genus Oryzomys) of the United .States and Mexico ; by C. Hart Merriam 273 Harriman Alaska Expedition.— XXIV. The Willows ; by F. V. Coville -297 Hopkins Stanford Galapagos Expedition.— I. Hemiptera ; by OttO Heidemann 363 Hopkins Stanford Galapagos Expedition. — II. Diptera ; by D. W. Coquillett 37^ Hopkins Stanford Galapagos Expedition. — III. Odonata ; by R. P. Currie 3S1 Harriman Alaska Expedition. — XXV. Algae ; by De Alton Saunders 391 Hopkins Stanford Galapagos Expedition. — IV. Orthoptera ; by Jerome McNeill 4S7 Synonomy of the Fish Skeleton ; by Edwin Chapin Starks . 507 Hopkins Stanford Galapagos Expedition. — V. Thysanura and Termitidae ; by Nathan Banks 541 Descriptions of 23 new Harvest Mice ; by C. Hart Merriam . 547 Seven new mammals from Mexico, including a new genus of Rodents; by C. Hart Merriam 559 Hopkins Stanford Galapagos Expedition. — VI. Isopods ; by Harriet Richardson 565 Haniman Alaska Expedition. — XXVI. Harrimanella, a new genus of Heathers ; by Frederick V. Coville . 569 Preliminary Revision of the Pumas (Felis concolor group) ; by C. Hart Merriam 577 Obituary. Charles Anthony Schott . . .601 Index ........... 603 ILLUSTRATIONS. PLATES. FACING PAGE. I-XIIL Alaska Nemerteans. no XIV-XXVL Alaska Hydroids 216 XXVII-XXX. Alaska Ascidians 266 XXXI-XXXn. Olejielhis {Hohnia^ Walcottamis 272 XXXin. Salix sitchejisis 362 XXXIV. Salix alaxensis 362 XXXV. Salix a7nplifolia 362 XXXVI. Salix bai'clayi 362 XXXVII. Salix comtmitata 362 XXXVIII. Salix ptilchra 362 XXXIX. Salix glauca 36 2 XL. Salix arctica 362 XLI. Salix stolonifera 362 XLI. Salix leiocarpa 362 XLII. Salix reticulata 362 XLIII-LXII. AlaskaAlga^ 486 LXIII. Roccus lineatiis — Cranium of 540 LXI V. Roccus lineatiis — Face bones, etc 540 LXV. RoccKS lineatiis — Vertebral column, etc 540 TEXT FIGURES. PAGE Carinoma s;rifiini 21 16. Linens viridis 65 17. Salix bebbiana 307 iS. Salix niittallii 310 19. Salix richardsoni 315 20. Salix 7iipJioclada 322 sina 29 21. Salix arbiisculoides 324 Zygo n em ertes alb ida ... 31 22. Sa lix myrtillifolia 325 23- 24. Carinoma griffini 21 Emplectonema gracile. 24 Emplectonema bi'irgeri. 26 Zygonemertes tJialas- 7. Paranemertes pere- gf'i^^a 34 S. Paranetnertes carnea... 38 9. Paranemertes carnea... 38 10. Atnp/iiporiis angiilatiis 41 1 1 . Amphiporiis bimacu- latus 45 12. AmpJiiporiis ncbiilosus. 49 13. Amphiporiis leiiciodiis. 52 14. Amphiporiis exilis 54 15' Salix chamissonis 326 Salix glacialis 329 25. Salix fuscescens 330 26. Salix ovalif alia 331 27. Salix polaris 335 28 . Salix phlebophylla 336 29. ^Eschna galapagoensis 383 30. ^'Eschna galapagoensis 384 31. Cannacria fumipennis 3S7 32. Cannacria fumipennis 3S7 7 ctrastemma abcrrans. 58 33. Cannacria fiiitiipennis 388 vii 34* Cannacria fuinipe7inis 3SS 3 5 . Teinnopteryx snodgras- sii 493 36. Teinnopteryx snodgras- sii 493 37. Tem?iopteryx siiodgras- sii 493 38. Liparoscelis cooksoni... 497 39. Liparoscelis cooksoni ensifer 49S 40. Liparoscelis paludicola 499 4 1 • Liparoscelis pallidus. . . 500 42. Xiphidiuju exitiosu7n... 502 43. Nemobius speculi. 504 44. Nemobius speculi 5^4 45 . Roccus lineatus 5^^ 46. Lctiobus bubalus 523 47. Lepisvia galapagoensis 542 48. Lepisma galapagoensis 543 49. Lepisma galapagoefzsis 543 50. Lepisma galapagoensis 542 51- L episi7i a insula ris 543 52- Lepisma insular is 543 53- Machilis mutica 544 54- Ma chilis mtitica 544 55- Caloter?nes galapago- efzsis 545 56. Calotermes galapago- ensis 545 57- Calotermes pacijicus. . . 545 58. Tanais stanfordi 566 59- Tana is stanfordi ^66 60. Tafiais stanfordi 567 61. ^L£gat/ioa excisa 567 62. Harrimanella stelleri- ana. 570 571 63- Cassiope mertensiana.. 64. Cassiope tetragona 572 (^s- Cassiope lycopodioides. . 572 66. Harrimanella l^'P' tioides 576 WASHINGTON ACADEMY OF SCIENCES OFFICERS FOR 1901 President Charles D. Walcott Vice-Presiden ts From the Anthropological Society W. H. Holmes Biological Society F. A. Lucas Chemical Society V. K. Chesnut Columbia Historical Society W J McGee Entomological Society H . G. Dyar Geological Society G. K. Gilbert Medical Society W. W. Johnston National Geographic Society A. Graham Bell Philosophical Society J. Howard Gore Secretary Frank Baker Treasurer Bernard R. Green Managers Class of jgo2 Class of igoj Class of jgo4 L. O. Howard F. W. Clarke Marcus Baker J. W. Powell Whitman Cross George M. Kober Carroll D. Wright C. Hart Merriam George M. Sternberg Note.— For list of members, rules, etc., see volume IV. PROCEEDINQS OF THE WASHINGTON ACADEMY OF SCIENCES Vol. Ill, pp. i-iio PLS. i-xiii. March 26, 1901, PAPERS FROM THE HARRIMAN ALASKA EXPEDITION. XX. THE NEMERTEANS. By Wesley R. Coe, Ph.D. Yale University. CONTENTS : Introduction i Species previously recorded 3 Species here recognized 5 Keys to groups and species 7 Systematic discussion of genera and species .11 Index 84 The Harriman Alaska Expedition, during the months of June and July, 1899, afforded exceptional advantages for the investigation and collection of the marine invertebrate fauna of the Alaska coast south of Bering Sea. During the course of the expedition collections of Nemer- teans were made at Victoria (Vancouver Island) and Lowe In- let in British Columbia ; at New Metlakahtla (Annette Island), Cape Fox, Wrangell, Farragut Bay, Taku Harbor, Juneau, Skagway, Glacier Bay, Sitka, and Hot Springs on the islands and mainland of southeastern Alaska ; at Russell Fiord and Yakutat Bay ; at Orca and Virgin Bay in Prince William Sound ; at Kadiak ; at Popof Island, Shumagin group ; at Kukak Bay on the Alaska Peninsula ; and at Dutch Harbor, Unalaska. Proc. Wash. Aacd. Sci., March, 1901. (i) 2 COE Stops were made also on St. Paul, St. Matthew, and Hall Islands in Bering Sea ; at Plover Bay, Siberia, and at Port Clarence, Alaska, just south of Bering Strait. At these latter localities, however, the shores are surrounded in winter by pack ice, which prevents the existence of any considerable amount of life between tides. No Nemerteans were found here between tides in the limited time at our command, though it is not unlikely that in deeper water an abundance of these worms could have been obtained by the dredge. South of Bering Sea, on the other hand, the shores are densely covered nearly to high water mark with a luxuriant growth of nearly all classes of invertebrates. All along that part of the coast which borders the North Pa- cific Ocean — from Dixon Entrance to the Aleutian Islands — with the exception of areas subject to local disturbing elements, such as the proximity of rivers and glaciers, invertebrates oc- cur in remarkable abundance. Not only is there an enormous number of individuals, but also a great variety of species. And, furthermore, the unusually large size which many of the species attain is quite as striking as the wealth of species and individuals. The purity of the water, its freedom from con- tamination from muddy streams, and the great rise and fall of the tides with their consequent swift currents, which continu- ously provide a rapidly changing supply of pure water, furnish conditions especially favorable to the growth of marine inverte- brate animals. Exceptions to these favorable conditions were found at Ju- neau, where the water is of slightly less than normal density, and contains a considerable amount of sediment. At Skagway these unfavorable conditions are still more pronounced, and here very few Nemerteans could be found between tides. In Russell Fiord the water was decidedly brackish, there was lit- tle tide, and almost no shore collecting could be done. Local- ities in the vicinity of glacier fronts were extremely barren of marine life, as was to be expected. Perhaps the locality which proved the most fruitful was Dutch Harbor, Unalaska, although the stations in Prince William Sound were but little inferior, and Sitka was found to possess an extremely rich littoral fauna. ALASKA NEMERTEANS 3 Of the abundance of Nemerteans collected, colored drawings were made of most of the species, and many specimens were carefully preserved for anatomical study, and have proved most interesting. Serial sections of most of the species have been prepared, and details of their anatomy will be found on subse- quent pages. Two other members of the expedition. Prof. William E. Ritter, of the University of California, and Prof. Trevor Kin- caid, of the University of Washington, have generously sub- mitted to me the Nemerteans collected by them. SPECIES PREVIOUSLY RECORDED. The Nemertean fauna of the northwest coast of North America up to the present time has been almost entirely neglected. Several small collections have been made, but the only litera- ture relating to the group in this region seems to be a paper by Stimpson. This author' gives brief Latin diagnoses of the following species from the west coast of North America : JEmpIectonema viride Stimpson [= Neniertes gracilis John- ston ^= Eniflectonenia gracilis Verrill]. Found by Stimpson under stones between tides in San Francisco harbor. This spe- cies occurs abundantly along the whole Pacific coast of Alaska. Cosmocephala beringiana Stimpson [= Amphiporus angti- lattis~\. Found in Bering Strait in five fathoms. This species also is abundant along the whole Pacific coast of Alaska. Cerehratulns impressus Stimpson [ = Micriira impressa'\ . Found in twenty fathoms in Bering Strait. This species was not met with by the Harriman Expedition. The investigation of the systematic position and anatomy of this group of worms has been rendered much less difficult since the publication of Burger's excellent monograph on the Nemer- teans of the Gulf of Naples.^ Biirger's classification is found to be admirable, and his nomenclature has been closely followed in the present work. It will be impossible, however, to retain the generic names Eunemertes and Eupolia which Biirger adopts, for the reason that they have been antedated by Stimpson. In > Proc. Acad. Nat. Sci. Philadelphia, pp. 159-165, 1S57. 2 Fauna und Flora des Golfes von Neapel. Monogr., 22, 1895. 4 COE 1857 Stimpson^ published brief, though accurate, diagnoses of these same genera under the names Em^lectonema and TcBui- osoma. Moreover, Stimpson gives as the type of Emplectonejna, E. camillea \_= Borlasia camillea Quatr. (1846) = Amphiporiis neesii Oersted (1844) = Eunemei'tes neesii Vaillant (1890)]. Not only this species, but also Stimpson's other species, Em- flectonema viride \= Nemertes gracilis Johnston, 1837], is a typical member of the genus named by Vaillant more than thirty years later. With these facts in mind it is obvious, as has been already pointed out by Verrill,^ that Stimpson's name must be retained. The status in regard to Eupolia Hubrecht (1887) is similar. Stimpson named Borlasia quinqtcelincata Quoy et Gaimard (1833) as belonging to his new genus Tceniosoma^ and described as new species T. seftemlineatwn and T. ceqtiale, which is probably identical with quinquelineatwn Quoy et Gaimard. But both of these species are typical of Etipolia Hubrecht. There can be no doubt, therefore, about the identity of the two genera^ and, as in the case of Emflectonema, Stimpson's name, TcBuiosoma, must hold. The brevity of some of Stimpson's generic diagnoses, as men- tioned above, is justified by the citation of well known typical species of those genera, and in such cases their validity cannot be questioned. Of his specific descriptions, on the other hand, it is more than likely that some will prove insufficient for an indisputable determination of the species. In the preservation of the Nemerteans, I found a 2- to 5"P^'^" cent solution of formalin in sea-water to yield most satisfactory results. Most forms die well-extended if a few drops of for- malin are added to the water in the vessel in which the living worms are contained. The formalin solution preserves the general anatomical and some of the histological features excel- lently, and sharp nuclear stains are easily secured, especially with the epithelial structures. This solution, however, works iProc. Acad. Nat. Sci. Philadelphia, 1857. * Trans. Connecticut Acad., viii, p. 413, 1892 ; ibid., ix, p. 146, 1S95. 3 Burger states distinctly in his great Monograph (p. 26) that " Tcsniosoma deckt sich mit Eupolia" but, for some reason, does not consider Stimpson's diagnoses valid. ALASKA NEMERTEANS 5 havoc with the nervous elements and with the connective tissues. Specimens killed in strong alcohol proved valuable adjuncts to the formalin preparations. In most cases the formalin speci- mens have been eventually transferred to alcohol for permanent preservation. Corrosive sublimate-acetic, Gilson's fluid, and, for nervous elements, Flemming's solution are always to be recommended. For serial sections no stains have given more happy results than Delafield's hasmatoxylin, followed by Orange G. In the limited time at our disposal it was naturally impossible to make an exhaustive collection or study of the Nemertean fauna. Some thirty-two species were collected, however, and of these twenty-seven proved to be new to science, and only two of the remaining species have been recorded from the Pacific. LIST OF SPECIES HERE RECOGNIZED. Following is a list of the species recognized, with brief notes on their general distribution so far as our collections go : PROTONEMERTEA. I. Carinella speciosa sp. nov. Along the whole Pacific coast of Alaska. Vancouver Island (Shearer). Not uncommon. 3. C. dinema sp. nov. Victoria, B.C.; Sitka. Uncommon. 3. C. capistrata sp. nov. Prince William Sound. Common. MESONEMERTEA. 4. Cephalothrix linearis {^di\)[^€)OQx%\.&^. Pacific coast. Abun- dant. 5. Carinoma griffini sp. nov. Collected by Mr. Creswell Shearer at Albert Head, Vancouver Island. METANEMERTEA. 6. Emplectonema gracile (Johnston) Verrlll. Pacific coast. Abundant. San Francisco (Stimpson). 7. £^. burger i s-p. noY. Glacier Bay ; Sitka. Not common. 8. Zygoizemertes thalassina sp. nov. Sitka. Not uncommon. 9. Z. albida sp. nov. Victoria, B. C. Uncommon. ID. Paranemertes peregrina gen. et sp. nov. Pacific coast. Vancouver Island (Shearer). Abundant. II. P. pallida sp. nov. Yakutat Bay ; Popof Island. Uncommon. 6 COE 13. P. car7iea ST^.now. Pacific coast. Vancouver Island (Shearer). Common. 13. Amphiporus aiigulatiis (Fabrlcius) Verrill. Pacific coast. Abundant. 14. A. bifnaczclatzis sp. nov. Southeast coast. Uncommon. Puget Sound (T. Kincaid). 15. A. tigrinus sp. nov. Farragut Bay. Uncommon. 16. A. tiebulostis sp. nov. Kukak Bay, Alaska Peninsula. Un- common. 17. A. leuciodiis sp. nov. Southeast coast. Common. 18. A. exilis sp. nov. Pacific coast. Abundant. 19. Tetrastem77ia bicolor sp. nov. Kadiak. Not common. 20. T. aberrans sp. nov. Glacier Bay ; Prince William Sound. Uncommon. 21. T. cceczcjji sp. nov. Dredged by Dr. Ritter at Kadiak. Common. HETERONEMERTEA. 22. Tcenlosoma princeps %\i. no\. Southeast coast. Uncommon. 33. Linens viridis (Fabricius) Verrill. Annette Island. Com- mon. 24. L. torquatiis sp. nov. Prince William Sound. Common. 25. Micrura verrilli sp. nov. Prince William Sound. Not un- common. 26. jSI. alaskensis sp. nov. Southeast coast. Common. 37. Cerebratulus herculeus sp. nov. Sitka. Not uncommon. 28. C. marginattis Renier. Sitka. Not uncommon. 29. C. occidentalis sp. nov. Yakutat ; Prince William Sound. Vancouver Island (Shearer). Abundant. 30. C. longiceps sp. nov. Yakutat. Uncommon. 31. C. mofttgomeiyi sp. nov. Puget Sound to Unalaska Island. Common. 32. C. albifrons sp. nov. Near Sitka. One specimen. It must be remembered that the above list represents but a few weeks' collecting, and sometimes with only a few hours at a locality ; too much confidence therefore should not be placed on the distribution or comparative abundance of the various species. Further research will undoubtedly add greatly to the number of species, and judging from the number found in so short a time it seems not unlikely that the list may eventu- ally be more than doubled. ALASKA NEMERTEANS 7 General considerations in regard to the anatomical peculiar- ities of the Nemerteans described below are reserved for a future paper. My reason for postponing this important duty in connection with the study of the collection is that since this article was written, extensive collections of Nemerteans from the west and northwest coasts of America and the Pacific Ocean have been placed in my hands. These collections will doubt- less include other forms than those collected on the Harriman Expedition, and it seems desirable that as many as possible be studied before drawing any general conclusions in regard to the anatomical peculiarities presented by the Alaska forms. KEYS TO GROUPS AND SPECIES. For convenience in determination, the species at present known from the northwest coast of America may be arranged in the following analytical table, based mainly on superficial and easily distinguishable characters. A. Proboscis without stylets. Mouth posterior to brain. Intestinal cfficum absent. a. Lateral nerves external to musculature of body walls. Protonemertea. aa. Lateral nerves imbedded in or between muscular layers of body w^alls b. b. Musculature of body walls in two main layers, to which an inner circular layer is sometimes added in the esophagal region. Cerebral sense-organs absent Mesonemertea. bb. Musculature of body walls in three main layers, of which the inner is longitudinal. Cerebral sense-organs present. Heteronemertea. AA. Proboscis with stylets. Mouth in front of brain, usually opening with proboscis in a single terminal or subterminal pore. In- testinal cKcum present. Lateral nerves internal to muscular layers of body walls Metanemertea. Order PROTONEMERTEA. Body remarkably long, soft, and fragile. Head distinctly marked off from body, usually broader than neck, often flattened dorso-ven- trally Carinella^ p. 1 1 . I. Body very soft, attaining a length of upwards of 2 meters, deep red or bright vermilion C.speciosa, p. n 8 COE 2. Color brown or chocolate with numerous narrow, transverse white rings and five parallel, longitudinal white lines, of which one is in the dorso- median line, and two on each lateral surface C dinema, p. 15. 3. Color brown with numerous narrow transverse rings and three parallel, lon- gitudinal white lines of which one is in the dorso-median line and one just below each lateral margin C. capistrata, p. 16. Order MESONEMERTEA. A. Body musculature consists of a thin outer circular layer and a strong inner longitudinal layer — an inner circular layer is usually wanting entirely, or, if present, is much reduced. Body long and filiform, often coiled in a close spiral. Head sharply pointed. Mouth placed very far behind the brain. Neph- ridia not discovered Cephalothrix^ p. 19. I. Slender, filiform, pale yellow, sometimes with reddish, grayish or greenish tinge. No ocelli in adult C. linearis, p. 19. AA. Body musculature consists of a thin outer circular layer, a diagonal layer, a longitudinal laj'er, and, in the esophagal re- gion, an additional, enormously developed inner circular layer. Head broader than neck. Nephridia well developed. Carinoma^ p. 20. I. Body rather stout, flattened posteriorly. Mouth close behind brain. Milk- white with grayish or brownish mottlings, and darker intestinal lobes. C griffini, p. 20. Order METANEMERTEA. A. Body long and slender. Proboscis sheath usually less than half the length of body. Proboscis small ; central stylet usually small Emplectonema^ p. 23. 1. Stylets slender, curved. Dark green or pale green above, and whitish or very pale greenish below E. gracile,^. 23. 2. Stylets straight and short, with swollen bases. Basis of central stylet swollen and rounded posteriorly. Dark brown above, flesh-color be- neath... E. biirgeri, p. 25. AA. Body moderately elongated. Proboscis sheath about ^ to ^ the length of body. Central stylet well developed. Paranemertes, p. 32. 1. Two or 4 pouches of accessory stylets. Color purplish brown, dark-brown, or orange-brown above, on sides, and on lateral margins of ventral sur- face; rest of ventral surface (often only the median third) white or yellowish white P. peregrina, p. 33. 2. Four pouches of accessory stylets. Opaque white P. pallida, p. 36. ALASKA NExMERTEANS. 9 3. Six to 12 pouches of accessory stylets. Whitish, pinkish or flesh- color P. carnea, p. 37. AAA. Body commonly rather short and thick. Proboscis sheath us- ually reaches nearly or quite to posterior end of body. Pro- boscis large; central stylet well developed a a. Ocelli numerous, extending along the lateral nerves beyond the brain. Basis of central stylet massive, w^ith truncate or con- cave posterior end Zygojiemertes^ p. 28. 1. Each of the 2 pouches of accessory stylets contains about 5 stubby sty- lets. Olive green above and below Z. thaCasstna, p. 29. 2. Each pouch of accessory stylets contains 2 or 3 moderately slender sty- lets. White Z. albida, p. 31. aa. Ocelli do not extend posteriorly beyond the brain. Basis of central stylet usually rounded posteriorly b. b. Body not very small. Ocelli usually numerous. Amfhiporus^ p. 40. 1. Short and broad. Usually two pouches of accessory stylets with 5 to 7 rather slender stylets each. Dark purplish or chocolate-brown above, with a triangular white spot on each side of the head ; ventral surface pinkish or flesh-color A.angulatus, p. 41. 2. Basis of central stylet but half as long as the slender stylet itself. Usually 4 pouches of accessory stylets. Dorsal surface deep brown- ish orange with 2 conspicuous oval or dark brown spots on head ; ventral surface pale orange or flesh-color A. bitnaculaius, p. 44. 3. Body rounded. Color of females yellowish orange, obscured in in- testinal region (in breeding season) by dark-green ova. Males yellowish, with white flecks A. iigrt'nus, p. 46. 4. Body rather broad and flat. Whitish, thickly mottled with dark brown blotches and dots; ventral surface whitish A. nebulosus, p. 48. 5. Body slender, rather small. Ocelli usually 15-40. Usually 3 pouches of accessory stylets, with 2 or 3 stylets each. White. A. leuciodus, p. 51. 6. Body extremely elongated for the genus. Ocelli usually 60-250, or more. Usually 6 to 12 (most commonly 8) pouches of accessory stylets, with i or 2 stylets each A.exilis, p. 54. bb. Body very small. Ocelli f ew^ ; usually 4 well-developed ocelli arranged in a rectangle ; but sometimes these 4 eyes are double or are fragmented into 4 groups of ocelli ; occa- sionally ocelli are wanting Tetrastemma^ P- 57- 1. Ocelli 4. Brownish-red above, with median, white stripe; ventral surface white T. bicolor, p. 57. 2. Ocelli of 4 groups, each consisting of several pigment spots of irreg- ular size. Pale yellow T. aberrans, p. 58. 3. Ocelli wanting. Hermaphroditic. Whitish T. cczcufn, p. ^g. lO COE Order HETERONEMERTEA. A. Head without deep lateral, longitudinal furrows. Proboscis mus- culature of two layers Tceniosojna^ p. 6 1 . I. Of very large size, reaching a length of 2 meters and a diameter of iS mm. Deep yellow, thickly sprinkled with small irregular, dark red spots. T. princcps, p. 62. AA. Head with deep, horizontal furrows. Proboscis usually with three muscular layers and muscular crossings, a. Caudal cirrus absent. Body long and slender, roiuided or flat- tened; very contractile Linens^ p. 64. 1. A single row of 4-6 (or sometimes 8) ocelli on each side of head. Dusky, or brownish green, dark brown, or reddish brown; commonly paler beneath L. virtdis, p. 65. 2. No ocelli in adult. Dark, reddish brown or purple, with a narrow trans- verse white band connecting posterior ends of cephalic furrows across dorsal surface of neck Z,. torqiiatiis, p. 66. aa. Caudal cirrus present. Body rather firm ; incapable of swim- ming Allcriira^ p. dZ. 1. Dorsal surface deep purple or wine-color with 15-40 sharp, pure white, transverse lines ; tip of snout with triangular, bright orange spot ; ventral surface of body pure white M. verrilli, p. 68. 2. Body flattened, grayish brown above with narrow, colorless, transverse lines ; with a small, flesh-colored, sub-truncate head, much narrower than body, and with minute gray spots near antero-lateral margins. M. impressa,^ ?• 70. 3. Salmon or flesh-color (more rarely light brownish); lighter, with tinges of brighter red, or nearly colorless anteriorly. Intestinal lobes more deeply colored, sometimes chestnut-brown. A cream-colored stripe is conspicuous in the ventral median line , M. alaskensis, p. 71. aaa. Caudal cirrus present in perfect specimens, but often missing. Body long and flat, with thin lateral margins. Swims read- ily. Dorso-ventral and diagonal muscles well developed Eyes usually absent Cerebratulus., p. 74 1. Very large and stout, becoming 2 meters or more in length, and 25 mm in width. Dark, reddish brown C. herculeus, ^. 1^ 2. Large and ribbon-like. Slaty brown to grayish green, with thin, white lateral inargins C. margiiiatiis, p. 75 3. Rather short. Chestnut-brown or reddish brown in esophagal region chocolate-brown in intestinal region above ; brownish flesh-color to dark brown beneath, with a median longitudinal ochre stripe along ventral surface C. occidentalis, p. 76. ^ Known only from Stimpson's original description — Proc. Acad. Nat. Sci., Philadelphia, p. 160, 1857. ALASKA NEMERTEANS II 4. Head and anterior portions of body narrow and slender, with remarkably long and deep cephalic furrows. Dark brown or purplish, paler on borders of cephalic slits and tip of snout C. longiceps, p. 77. 5. Very long and ribbon-like, becoming 2 meters or more in length. Deep blood-red except tip of snout, which is yellowish white both above and below C. 77iontgomery{, p. 80. 6. Reddish purple except head which is white on both dorsal and ventral surfaces back to anterior border of mouth C albtfyo7is, p. 82. SYSTEMATIC DISCUSSION OF GENERA AND SPECIES. CARINELLA Johnston. Mag. Nat. Hist. London, vi, p. 232, 1833. The species belonging to this genus are characterized by a slender, soft, rounded body, capable of extending and contracting to a remark- able degree. Head distinctly marked off from body, usually much broader than parts immediately following, often flattened dorso-ven- trally, and disk-like. On each side of body a transverse furrow separates the head from the esophagal region. Proboscis opening subterminal ; mouth a small round opening on ventral surface just back of lateral transverse furrows. The lateral nerves lie outside the muscular layers of the body, and just beneath the basement layer of the integument. The body walls are made up of a very thick outer epittielium with abundant glands, a basement layer, a circular muscular layer, and a longitudinal muscular layer in the order named from without inwards. In addition to these there is, in the esophagal region, an inner circular muscular layer which often forms a dorsal, and sometimes a ventral crossing with the fibers of the outer circular muscular layer. Proboscis sheath usually not more than 1/3 the length of bodv. Proboscis small and short. Ocelli wanting. Cerebral sense organs usually represented simply by a pair of sensory pits in the epithelium, although some species (cf. C. speciosa) possess a pair of well-devel- oped sense organs with ciliated canal, ganglion cells and glands. A pair of peculiar lateral sense organs is usually situated well back in the esophagal region. Some of the species show elaborate markings of fine white lines on a brownish body, others are homogeneous in color. Most species are colored in some shade of brown or red ; some are bright vermilion. I. CARINELLA SPECIOSA sp. nov. p1. Ill, fig. 6; p1. IX, figs. 1-3; pi. X, figs, i, 2. Body large, very long, flattened below, rounded above, and remark- ably soft and pliable. This beautiful Nemertean closely resembles C. 12 COE polymorpha in external appearance, but is more brightly colored, and shows conspicuous peculiarities in its internal anatomy. The body is even softer than that of C. polymoi-pha^ and more distensible ; and the species is easily distinguished by the presence of enormously developed cephalic glands, by having very highly specialized and sharply defined cerebral sense organs (with ciliated canal, lined with glandular and sensory cells), by the peculiarities in the nephridia, and by many other details of structure. Head rounded in front, broader than parts immediately following, from which it is marked off by lateral, transverse furrows. Proboscis opening and mouth as in other species of the genus. Body variable in thickness in its different portions according to state of contraction of the particular part, but usually flattened below and rounded above, with well-rounded lateral faces ; posterior portion of body much more slender than anterior. The worms are very sluggish. When coiled together the turns of the body are irregular and angular. Color. — This is the most brilliantly colored and unquestionably the most striking Nemertean encountered on the expedition. The color of the whole body was a deep, rich vermilion, becoming somewhat paler and more yellowish towards the posterior end. In formalin or alcohol the natural color quickly disappears, although a characteristic marking still remains. This feature is peculiar to C. polymorpha as well. About 25 to 40 mm. back from the tip of the head (in a large speci- men) is a broad band of dark brown color reaching entirely around the body. This band is commonly 10 to 30 mm. in width, is very sharply marked off anteriorly, but fades out gradually behind. All the rest of the body, both in front and behind, is yellowish or grayish. This marking remains after imbedding in parafhn, and even after sectioning and staining in haematoxylin there is a sharp line of distinc- tion at the anterior end of the dark band. A single section, cut obliquely, shows the line of demarkation perfectly. The difference lies wholly in the integument and does not affect any of the layers beneath. In the integument the dark band is characterized not only by the presence of an abundance of minute pigment granules, but by a decided change in the staining qualities of the closely packed gland cells. Size. — The body is very long, one specimen measuring — when sus- pended by its middle portion, and therefore well extended — fully three meters in length, and about 5 mm. in width. Most specimens, how- ever, were not more than y^ as long. ALASKA NEIMERTEANS I3 The epithelium of the body is very thick, and filled with closely packed gland cells. The two circular muscular layers in the esopha- gal region show almost no indication of a mutual crossing of fibers either above or below, although, as indicated in p1. ix, fig. 3, a few fibers of connective tissue and fine nerve fibers pass at intervals from the region of the median dorsal nerve to the internal circular muscles. Proboscis. — Attached to tissues of head just opposite the mouth, and therefore a considerable distance back of the brain commisures. Its posterior attachment is in the region of the efferent nephridial ducts. The muscular layers are as in other species of the genus. Two large nerves enter the latero-ventral portion of the proboscis at its attach- ment, and pass backwards on opposite sides just internal to the cir- cular muscular layer. The proboscis sheath shows a homogeneous basement layer beneath its internal lining of flattened epithelium. The musculature consists wholly of circular fibers, except that there is a distinct layer of longi- tudinal muscles between the circular muscles of the proboscis sheath and the epithelium of the esophagus. Lying on the muscles of the proboscis sheath is a small median dorsal nerve which runs parallel with the median nerve outside the circular body-muscles and corre- sponds to the inner median nerve of other species. The esophagus is provided with a pair of nerves continuous with the unusually large buccal nerves. The cerebral ganglia are situated wide apart, as in other species. The anterior portion of the head receives a considerable number of remarkably large nerves (p1. ix, fig. i). Cerebral sense organs. — These organs deserve special attention because of their high degree of development. They are each pro- vided with a narrow but distinct canal leading outward to the lateral surface of the integument. The sense organs lie immediately external to the dorsal ganglia, from which they are separated only by a few fibers of connective tissue which here represent the integumental base- ment membrane (p1. x, fig. 3). In size, position and structure these organs are closely similar to those of C. annulaia, as figured by Burger. ^ Each consists of a large, rounded mass of nerve cells and connective tissue surrounding a narrow, central canal lined with ciliated and specialized sensory epithelium (rl. ix, fig. 2). Periph- erally there is an abundance of peculiar glandular cells, and the whole is separated from the surrounding integumental cells by a thin 1 Fauna und Flora des Golfes von Neapel, Monogr. 22, p1. xii, fig. 5. 14 COE sheath of connective tissue. The central canal leads ventrally and outwards to open through the epithelium of the lateral margin of the head. The sense organs are innervated by several large nerves from the adjacent dorsal ganglion (p1. x, fig. 2). Cephalic glands. — Enormously developed, making up a large por- tion of tissues of snout (p1. ix, fig. i). These glands are closely packed throughout the tissues internal to the integument, and form thick layers around the cephalic blood lacunae and the rhynchodaeum. Nearer the brain region they become more scattered, and disappear just in front of the ganglia, those about the rhynchodaeum reaching back a little farther than those situated external to the blood lacunae. The secretion from the glands stains most intensely with ha^matoxylin. Most of the anterior glands pour out their secretion on the tip of the snout ; those farther back open along the whole circumference of the body, but most abundantly near the lateral margins (p1. ix, fig. i). Still farther back all the glands open laterally. Nephridia. — Situated mainly in, and a little behind, middle third of esophagal region. There is a single large longitudinal canal on each side, lying in close contact with the dorsal walls of the large, lateral blood lacunjE (p1. ix, fig. 3). The nephridial canals reach forward about as far as the anterior end of the broad band mentioned above as becoming darkly colored in alcohol. Near its posterior end each canal exhibits a peculiar relation with the outer integument. At sev- eral points in each canal the dorsal wall of the canal becomes discon- tinued and the inner ends of the integumental cells reach inward into the lumen of the canal (p1. x, fig. i). Sometimes this infolding of the integumental cells occupies a large part of the lumen of the ne- phridial canal. Superficially these areas always show one or more openings in the outer layers of the integument, but such openings do not penetrate the nephridial canal. At the posterior end of each ne- phridial canal there is one, or sometimes two, efferent ducts (p1. ix, fig. 3) which lead to the dorso-lateral surface of the body, as in other species. Habitat. — The species was found at Hot Springs (near Sitka), Virgin Bay in Prince William Sound, and at Dutch Harbor, Unalaska.' Individuals were occasionally seen crawling about on the bottom be- neath the water, and in such instances were extremely conspicuous, because of their large size and brilliant vermilion color. They were more commonly found under stones near low-water mark, but were nowhere abundant. ' Collected also bj Mr. Shearer at Vancouver Island, B. C. ALASKA NEMERTEANS I 5 2. CARINELLA DINEMA sp. nov. p1. I, figs. 2, 3. This species somewhat closely resembles C. superba in general color of body and the thread-like markings thereon. It differs from this and allied species in many details, and especially in having two lateral longitudinal white lines on each side — hence the specific name. Body long and slender, largest in esophagal region, rounded an- teriorly, somewhat flattened on ventral surface posteriorly. Head broad, flat, often emarginate in front ; lateral, transverse furrows back of head deep and conspicuous. Proboscis-pore subterminal. Mouth rather large for the genus, elongated and situated slightly in front of second white ring. Color. — General color dark brown with a more or less pronounced yellowish tone, becoming more nearly yellow posteriorly. The mark- ings of fine longitudinal and transverse white lines on this ground color are very characteristic and stable. Five parallel, longitudinal lines run nearly the whole of the length of the body, and there are a great number of transverse lines. Of the five longitudinal lines, one lies in the middle of the dorsal surface and extends from the most an- terior transverse ring to the posterior end of the body. The other four lie symmetrically on the sides — two almost on the lateral margins ; the other two much nearer the ventral surface. Seen in section, the distance between the dorsal median line and the upper of the two lateral lines on each side is 90°. Two lateral lines on either side are separated by about 45°, while the remaining 90° lies between the two lower lateral lines. All the four lateral lines extend from the second transverse line to about ^ the distance towards the posterior end of the body. Here they become interrupted, and back of this they are usually indicated only by short segments and scattered dots, though their course may be traced nearly to the end of the body. The five longitudinal lines are all very fine and sometimes consist of rows of fine white dots closely placed together. In addition to these five longitudinal lines some in- dividuals show an indication of a median ventral longitudinal line in the form of a row of isolated fine white dots extending from behind the mouth nearly to the fifth white ring. The first transverse white marking lies near the tip of the snout. It is somewhat wavy in outline and does not reach below the lateral margin. The second white marking is broader than the first, but is likewise limited to the dorsal surface. It is indicated, however, on the lateral surface by two narrow and inconspicuous spots. The third l6 COE marking is not represented on the lateral surfaces, but is sharp on the dorsal surface, and is indicated on the ventral surface by a few scat- tered white dots. The fourth marking is ver}^ sharp and extends as a ring completely around the body. The fifth is broader than any of the other rings. The sixth is usually merely indicated by a series of fine dots. Posterior to the sixth, there are commonly as many as 150 more or less distinct and perfect rings, arranged at fairly regular intervals throughout the length of the body. They are much more conspicuous on the dorsal than on the ventral surface. In fact a large number of them are interrupted on the ventral surface and represented only by isolated dots. When the rings are well developed each consists of two very fine white rings lying side by side, with a fine brown ring between them. Over the greater portion of the body are alternating wider and narrower white rings, or double and single rings, but there are always exceptions to the regularity of arrangement. The white lines, both longitudinal and transverse, appear as if formed by a coating of fine white particles on the surface of the body. The region of the proboscis-pore is very pale. Extending outward and backward on each side from a point just above the proboscis-pore is a shallow, horizontal groove. Each of the grooves is marked by a black line, and each extends backward as far as the first transverse white line. They do not quite meet in front however. The borders of the mouth are pale in color. The sides of the brain region are dark reddish. In alcohol the body is grayish as far back as the fourth white ring. Here it abruptly changes to black, which fades into dark brown through- out the remainder of the body. The markings are well preserved. The ''side organs'* are indicated as a pair of rounded pits lying just anterior to the fifth white ring and immediately below the dorsal of the two white, lateral, longitudinal lines on each side. Habitat. — This species was found on the piles of a wharf at Vic- toria, B. C, and was also found among hydroids, etc. at Sitka. The worms were from 300 to 500 mm. long in extension, with a diameter of about 2 to 3 mm. They inhabited grayish, fragile, parchment- like tubes, which were commonly much twisted and coiled. But few specimens were met with. 3. CARINELLA CAPISTRATA sp. nov. p1. I, fig. I. This, like the preceding species, resembles C. superba (Kolliker) Burger somewhat closely in color and general appearance. A careful ALASKA NEMERTEANS 1 7 examination of a number of individuals, however, shows that the markings on the body present such constant differences that the tvv^o species must be considered distinct. C. capistrata is likewise differ- ent from any of the other related and described species. It may at once be distinguished from C superba by lacking all indications of a median ventral white line. The markings on the head and the ar- rangement of the anterior transverse white lines distinguish it easily froin C. a/inulata and C. nothus Burger ; from C. dniema it may be separated by the presence of but one pair of lateral white lines, in- stead of the two pairs found in C dinema. C. capistrata is a very large species, attaining a length of more than a meter with a diameter of about 5 mm. near the anterior end, and of 2 to 3 mm. farther back. The worms are therefore extremely long and slender, and the diameter in the esophagal region is twice as great as it is farther back. The body is strongly rounded on the dorsal surface throughout its whole length ; the posterior end is very slender and easily broken. Head broad, flattened dorso-ventrally, rounded or emarginate in front, sharply marked off from succeeding portions by a pair of deep, latei'al, transverse constrictions, or furrows. Proboscis-pore minute, subterminal, bounded on each side by a shallow horizontal groove. Mouth small, slightly elongated, situated immediately behind the lateral furrows. Color. — General color of body rich, deep brown, sometimes vary- ing towards grayish black ; posteriorly becoming lighter, and of a yellowish brown. On this ground color is a series of conspicuous, but fine, longitudinal and transverse white lines (p1. i, fig. i). The lon- gitudinal lines are three in number and parallel — one in the middle of the dorsal surface, the others just ventral to the lateral margins. The dorsal line extends without interruption from near the tip of the head to the posterior end of the body. The lateral lines, on the other hand, are much broken up in the anterior portions of the body, and in the esophagal region are only indicated at intervals, though their course can be followed nearly to the head ; throughout all the rest of the length of the body they are sharp and distinct. The transverse white lines, excepting the most anterior one, com- pletely encircle the body. This first transverse line appears as a sharp V-shaped marking a little back of the head. Its angle is directed backward and its extremities reach but little below the lateral margins. The median dorsal line passes through the angle of this V-shaped marking, and at the point of intersection the white area is somewhat Proc. Wash. Acad. Sci., March, 1901. l8 COE enlarged to form a small oval spot. The second transverse marking is situated some 20 to 30 mm. (in large individuals) from the first, and completely encircles the body. This ring is always sharp and con- spicuous, and in alcoholic specimens is still more distinct in that it separates a paler anterior portion from the much darker succeeding parts. The third transverse ring is also complete, and is commonly separated from the second by about half the distance that this is separated from the first. The fourth and fifth rings are sometimes interrupted below, but are more usually complete, and are much nearer together than the second and third. Back of the fourth or fifth ring we find a regular succession of complete rings to the end of the body. It is common to find as many as 200 such rings arranged at fairly regular intervals and separated from each other, when the worm is contracted, by an average distance of about the diameter of the body. Some of the rings are wider than others, but nearly all are as narrow as fine threads ; a few are more or less interrupted. The anterior and lateral margins of the head are bordered by a nar- row band of light color, as in several other species, but this is mainly visible from the ventral surface. The ' side orgatts ' are indicated by a pair of small pits situated in the third transverse white ring and just dorsal to the position of the lateral lines. Their position is about the same, therefore, as in C. S7iperba. In alcoholic specimens the arrangement of the white longitudinal and circular lines is still distinguishable, except near the anterior end of the body, which, back to the second transverse marking (first complete ring), is pale or grayish brown. Back of this the color abruptly changes to very dark brown or black, which reaches posteriorly 1^0 to 75 mm. (in large individuals) and then gradually fades out into light brown, which continues to the end of the body. The color is usually paler on the ventral than on the dorsal sur- face. Habitat. — This species was found in abundance under stones near low-water mark at Orca and Virgin Bay in Prince William Sound, but was not met with elsewhere. The worms lived in long, fragile, gray- ish, paper-like tubes of about the same diameter as the body. These tubes were usually twisted about horizontally beneath the stones under which the animals live. They were also frequently occupied by a species of polychaetous annelid (^Nereis), which was often associated with the Nemertean. The worms are sluggish in their movements, and break up posteriorly if roughly handled. ALASKA NEMERTEANS 19 CEPHALOTHRIX Oersted. Entwurf der Plattwurmer, Kopenhagen, 1844. This genus includes very long, slender, filiform species which show a tendency to coil in a close spiral. Brain situated well behind tip of snout ; mouth several times as far posteriorly. Head sharply pointed in extension ; proboscis-pore on ventral side a little back of its extrem- ity. Inner circular muscular layer very much reduced, or (commonly) entirely absent, the body musculature consisting of a thin outer circu- lar muscular layer and a strong inner longitudinal layer ; lateral nerves situated in the longitudinal muscular layer ; cerebral sense organs and cephalic furrows wanting. These worms resemble in external appear- ance some of the slender Nematodes. 4. CEPHALOTHRIX LINEARIS (Rathke) Oersted. Planaria linearis Rathke, Skrivter af Naturhist. Selsk. Kjobenhavn, v, p. 84, 1799. Cephalothrix linearis Q-EKST^n, Entwurf der Plattwiirmer, p. 82, Kopenhagen, 1844. A very slender thread-like species capable of great extension and contraction. Individuals may be extended till they resemble a very fine thread, but when disturbed commonly coil themselves into a closely wound spiral. Body commonly rather thicker in the middle and taper- ing toward both extremities. Head very long, acutely pointed when extended. Proboscis-pore situated ventrally, some little distance back from tip of snout. Mouth very far back ; commonly distant from tip of snout 10 to 12 times the diameter of body; or it is perhaps 4 to 5 times as far back as is the brain. The length is subject to the greatest variation. Alaska specimens commonly extended themselves 3 to 6 inches or more, but could con- tract to a small fraction of this length. Ocelli. — Wanting in adults although the embryos are provided with a single pair soon after leaving the egg. Color. — Usually pale yellow throughout, but some specimens had a distinct reddish tinge, and some were gray, greenish, or pale green. A median paler line, due to the proboscis sheath, appears on the dorsal surface in the esophagal region. Habitat. — The species is very common well up toward high- water mark under stones in muddy places, among decaying mussels, etc. The worms were commonly found where the mud was black, slimy, and very foul. Scores of specimens were sometimes found under a single stone. They were often associated with slender red- 20 COE dish Nematodes. Very abundant at New Metlakahtla, Glacier Bay, Sitka, Orca and at other places. The species is also common on the coast of New England, and is likewise found along the shores of northern Europe and in the Mediterranean. CARINOMA Oudemans. Circulatory and Nephridial Apparatus of the Nemertea, Quart. Journ. Micr. Sci., XXV, Suppl., pp. 1-80, 1885. Body usually slender, often thickened and rounded anteriorly, flat- tened in intestinal region ; head usually wider than parts immediately following ; mouth situated immediately behind the brain ; proboscis pore subterminal. Lateral slits, cephalic groves, and cerebral sense organs wanting. Intestine with paired, lateral diverticula. Body musculature composed of two muscular layers throughout length of body, and of localized supplementary layers. These consist of a thick internal longitudinal layer and a thin external circular layer, but in the esophagal region a second circular layer lies internal to the longitudinal muscles, and just in front of the nephridial region be- comes enormously thickened. In the anterior portions of the esoph- agal region a double set of distinct diagonal muscles lies just internal to the outer circular muscular layer. The latei^al nerves are situated within the longitudinal muscular layer. In the anterior portions of the esophagal region are three pairs of longitudinal blood vessels, of which one pair represents the main lat- eral vessels and lies beside the esophagus, a second pair lies beside the proboscis sheath, and the third pair is situated internal to the ventral wall of the proboscis sheath and projects freely into the rhynchocccl. 5. CARINOMA GRIFFINI sp. nov. Two^ species of this interesting genus are already known from other parts of the world — C. arinandi Oudemans, which is found ' Miss C. B. Thompson has very recently added a third species, C tremaphoros (Zool. Anz., Vol. XXIII, No. 631, pp. 627-630, Dec, 1900, from a single speci- men collected at Woods Hole, Mass. I have found this species rather abundantly in a large pond at Falmouth, Mass., connected with Vineyard Sound by a very narrow outlet, and consequently but little affected by the tides. The species must be unusually hardy, for the worms lived just on the edge of the pond in sand much blackened by decaying organic matter. They heve moreover to en- dure great changes in the salinity of the water due to irregularity in rainfall and evaporation. Further notes in regard to the anatomy of this species will be published later, together with colored figures of the living worms. ALASKA NEMERTEANS 21 occasionally on the shores of England, and C. fatagonica Burger, o£ which a single specimen has been collected from the Straits of Magellan. This new species was found by Mr. Creswell Shearer at Albert Head on Vancouver Island. It attains a length of upwards of 600 mm. and a diameter of 3-5 mm. Anterior portions of body cylin- drical ; intestinal region much flattened. Head broader than neck, and pointed, rounded or emarginate in front according to the state of contraction (figs, i and 2). No ocelli were found. Fig. I. Fig. 2. Anterior part of ventral surface. Figs, i and 2. Carinoma griffim %'^. nov I. Head extended and pointed. 2. Head contracted and emarginate. X 8. Color. — General color milk-white anteriorly, with brownish mot- tlings faither back ; intestinal lobes darker. After preservation the color is completely lost, and the body becomes nearly cylindrical throughout. Body walls. — In internal organization this species agrees closely with the descriptions which Burger gives of C. armandi^ and of C patagonica^ but pi'esents a number of peculiarities, which may be stated briefly as follows : Outer integument divided into a superficial and a deeper layer of epithelial cells, separated by a network of con- nective tissue fibers. Basement layer in esophagal region about equal in thickness to the integument itself, but is much thinner farther back. Beneath basement layer in esophagal region is a loose sheet of circular muscles, and beneath this a double set of diagonal muscular fibers. ^ Fauna u. Flora des Golfes von Neapel, Monogr. 22, Nemertinen, 1895. *Zeits. f. wiss. Zool., Vol. Lxi, pp. 19-20, pi. 3, figs. 1-9, 1S96. 22 COE The main longitudinal muscular layer in most regions of the body equals in thickness that of all the other muscular layers combined. The lateral nerve cords lie imbedded in this layer. Internal to the longitudinal muscles lies a small amount of gelatinous tissue or paren- chyma of the body cavity. The inner circular muscular layer extends from the mouth to the posterior end of the esophagal region. Its fibers are continuous with those of the proboscis sheath. Anteriorly, it is even thinner than the outer circular muscular layer, but towards the posterior end of the esophagal region it increases so greatly in massiveness that for a short distance it exceeds in thickness the other muscular layers combined. Having reached its maximum develop- ment (near the efferent nephridial ducts), it suddenly disappears en- tirely, its dorsal portion remaining for a few sections as a semicircular arch above the proboscis sheath. Proboscis sheath. — This organ is more strongly developed than in the other species of the genus, and possesses a single muscular layer composed of circular fibers interlaced with longitudinal fibers in small groups. Proboscis. — The anterior end of the proboscis is attached to the tis- tues of the head at about the middle of the brain region. It walls con- sist of a thin outer fibrous layer, on which rest the superficial flattened epithelial cells bathed in the fluid of the rhynchoco^l. Beneath is the thick layer of longitudinal muscles comprising nearly the whole of the musculature. Internal to these are a few scattered circular fibers, then a thin basement membrane, and, finally, the internal layer of columnar epithelial cells. This inner epithelium is composed of a simple layer of very long and closely pressed cells, a portion of which contain rod- like masses of secretion. Their nuclei are closely packed together peripherally, and comprise several layers as is usual in much crowded columnar cells. A pair of rather large nerves extend throughout the length of the proboscis just internal to the circular muscular layer. These nerves originate from the ventral commissure of the brain very much as in Carinella. They arise from the anterior border of the commissure near its origin from the ganglia, and pass dorsally to the point where the proboscis is attached to the tissues of the head. They then enter the proboscis, and take up lateral positions in its walls corresponding to those of the lateral nerves in the walls of the body. Nephridia. — The condition of the nephridial system is in many respects intermediate between that of C. patag'onica and C. ar7nandi., the mass of tubules constituting the so-called nephridial glands not ex- ALASKA NEMERTEANS 23 tending into the cavity of the blood space nearly so far as in the former, but are much more profusely branched than in the latter species. The single pair of efferent ducts lies in the same region as the posterior ends of the series of ' nephridial glands.' Posteriorly to this point a single unbranched duct of large size runs backward on each side for a considerable distance, and then bends sharply and runs forward to the efferent duct, always lying close beside, and just external to that limb of the duct which is passing backward. The efferent ducts open on the dorso-lateral surfaces of the body at the posterior end of the enormously thickened internal circular muscular layer. The blood vascular system, brain, buccal nerves, lateral nerves, and dorsal and ventral median nerves are much as in C patagonica. Specimens collected in August had just discharged their sexual products. In one individual a very few genital sacks still retained their mature ova. EMPLECTONEMA Stimpson. Emplectonetna Stimpson, Proc. Philadelphia Acad., p. 163, 1857. Nemertes McIntosh, British Annelids, Part I, Nemerteans, Ray Society, 1872-1873. Eunemertes Vaillant, Hist. Nat. des Anneles, Tome 3, Paris, 1890. Body very long and slender, varying greatly in thickness according to state of contraction, but most commonly considerably flattened ; often sharply bent and folded into an irregular mass ; integument pro- vided with an unusual abundance of mucous secretion ; proboscis and mouth opening together on subterminal portion of snout ; proboscis sheath limited to anterior third of body ; proboscis slender and very short, often not more than yi the length of body ; a large number of minute eyes usually present ; cerebral sense organs situated well in front of brain, and usually very small. The species are of sluggish move- ment, and many of them are found very near high water mark among mussels, barnacles, rockweeds, etc. Of the genus Emplectonema two species, of which only one (^E. gra- cile) had previously been described, were found on the Harriman ex- pedition. 6. EMPLECTONEMA GRACILE (Johnston) Verrill. p1. viii, fig. 3. Nemertes gracilis ]on^S'Y:oii, Mag. Zool. and Bot. London, vol. i, 1837-38. Emplectofiema viride Sti^fso'S, Proc. Philadelphia Acad., p. 163, 1857. Eunemertes gracilis Vaillant, Hist. Nat. des Anneles, Tome 3. Paris, 1890. Eunemertes gracilis Burger, Fauna u. Flora des Golfes von Neapel, Monogr. 22, Nemertinen, p. 543, 1895. Emplectonema gracilis W^KKl'LL,, Trans. Connecticut Acad., vili, p. 413, 1892; ix, p. 146, 1895. 24 COE Body very long and slender, somewhat flattened below, irregular and ungraceful in form, and sluggish in movement. Head slightly broader than rest of body ; snout blunt, posterior extremity of body tapering gradually to a point. The common opening of the mouth and proboscis lies ventrally, a little back from the tip of the snout. The cerebral sense organs lie far in front of the brain, and each communicates with the exterior by a canal which opens on the ventro-lateral margin near the tip of the snout. Color, — Uniform dark green above and nearly white below ; some- times grayish or yellowish green above, and very pale yellowish green below. The color of Alaska specimens is as a rule paler and more grayish green than in Mediterranean specimens. The head is bordered with a narrow band of white, uniform with that of the lower surface. Back of the head is an inconspicuous transverse band paler than the rest of the dorsal surface. The pigment resides wholly in the integu- ment, the muscular layers and other organs of the body being prac- tically colorless. Ocelli. — The eyes (fig. 3) are characteristically arranged in two groups on each side of the head. The anterior group on each side usually consists of 8 to 10 pigment-cups ar- ranged in a single row near the antero-lateral border of the head. These lie deeply imbedded in the tissues of the head, and are much more conspicuous from the ventral surface owing to the presence of much pigment on the dorsal surface above them in ordinary states of con- traction. Each posterior group lies nearly Fig. 3. Emplectotiema above the brain and consists of 10 to 20 ocelli gractle. Dorsal view of j^ an irregular cluster. The eyes of the pos- head to show arrange- . . • -ui 1 r i.u j 1 , ^ ^ tenor groups are visible only from the dorsal ment of ocelli. X 12. i ,, . . surface, and are smaller in size than those of the anterior groups. The integument may be scraped off so as to expose the eyes clearly. Proboscis. — The stylet apparatus is especially characteristic of the species. The basis of.- the central stylet is very long and slender, and is twice to three times as long as the stylet itself. The posterior end is sharply swollen into a flattened knob (p1. viii, fig. 3). In front of the knob the basis decreases in diameter evenly towards the anterior end, except for a slight constriction which occurs at about Y^ the distance from the posterior end. The anterior portion is slightly ALASKA NEMERTEANS 25 curved. The central stylet is slender, extremely sharply pointed, and gracefully curved like a sabre or scythe. There are two accessory stylet pouches, and each commonly contains 5 to 7 slender stylets curved like the central one, and of approximately the same size (p1. VHi, fig. 3)- Habitat. — This species was found in the greatest abundance at nearly all the collecting stations between Victoria, B. C, and Dutch Harbor, Unalaska. It occurred everywhere along the shore, and was most plentiful near high water mark, crawling over the thick growth of mussels and seaweeds. Often a number of individuals were found coiled together in a single slimy mass, and on being disturbed would crawl apart and move sluggishly about, but usually made no effort at concealment. Similar masses were met with under stones in very muddy localities, and often where the water was very brackish. This is probably the most abundant species of Nemertean on the Alaska coast, and is found nearer high water mark and in more brackish water than almost any other species. The species has previously been recorded from the coasts of Eng- land, the northern shores of Germany and France, the Mediterranean, and Madeira. It was also found by Stimpson under stones between tides in San Francisco harbor and described as E. viride. An excellent and detailed account of the minute anatomy of this species is given in Burger's Monograph of the Nemerteans of the Gulf of Naples.^ Specimens collected in Alaska in June and July were filled with nearly mature genital products, in closely packed, but irregularly arranged pouches. The genital glands were often noticeable from the exterior because of their pale color. 7. EMPLECTONEMA BURGERI sp. nov. ' pi. II, figs. I, 2 ; p1. viii, fig. I ; p1. xii, fig. 3. Body long, flattened both above and below, ribbon-like, as thick near the edges as in the median line ; head usually narrower than the parts immediately following ; posterior extremity slender. The rhyn- chod^eum opens on the ventral side of the tip of the snout ; a pair of shallow lateral slits occur just in front of the mouth. The worms attain a length of more than a meter, and are 5 mm. or more in width. Like other species of the genus the integument is furnished with a vast amount of mucus. ^ Fauna u. Flora des Golfes von Neapel. Monogr. 22, 1895. 26 COE Color. — The color varies considerably, as will be seen from the two color varieties on pi. ii, figs, i and 2. The commonest form is dark velvety-brown above, with a paler median line, much paler and slightly yellowish in front, and flesh-colored or creamy white below. Other individuals have the whole dorsal and lateral surfaces of a mot- tled reddish brown color, with a tinge of purple, while the ventral surface is pale yellow or flesh-colored. Sometimes the head is nearly colorless. The dorsal surface almost always has an appearance sug- gestive of velvet. This color is superficial, and is easily removed by rough handling. Proboscis. — Proboscis small, very short and delicate, sometimes scarcely more than yL the length of body. The proboscis sheath reaches well toward middle of body, but is very small toward its pos- terior end ; in esophagal region it is well developed, with a thick outer layer of circular muscles, and a thin, inner, longitudinal muscular layer. The rhynchodaeum passes backward a considerable distance before the intestinal canal is separated from the proboscis opening. The armature of the proboscis consists of a weak central stylet, and a pair of pouches of accessory stylets (p1. viii, fig. i). The basis of the central stylet is rather slender in front, slightly contracted near its posterior third, from which point it swells out suddenly into a large spherical bulb. The cen- tral stylet is slightly shorter than its basis. Each of the reserve pouches usually contains three small stylets with swollen bases. The posterior chamber of the proboscis is narrow. The pro- boscis is provided with ii distinct nerves. Ocelli. — The ocelli are very numerous. On Fig. 4. Empledo- each side of the tip of the snout is an elongated nema burgeri. Dor- cluster of minute eyes, all situated near the dor- sal view of head to , , 1 -^l . 1 •. r ^ sal surface, and without regularity of arrange- snow arrangement of . . ocelli. X 8. ment. Their number is commonly 60 or more on each side (fig. 4). Back of these are a few other eyes, likewise very minute, situated deep in the tissues of the body, and seen only with difficulty. They are scattered irregularly from near the lateral borders in front of the brain inward towards the median line (fig. 4). Cerebral sense organs. — Unusually large. They lie lateral to the rhynchodasum, and slightly in front of the brain. The ducts by which they communicate with the exterior pass forward to open latero-ven- trally. ALASKA NEMERTEANS 27 The pair of blood lacuncz in the head are rather small, and pass backward in numerous branches. The dorsal vessel in the proboscis sheath has several communications vv^ith the lateral vessels in the esophagal i-egion. In the region of the brain a great abundance of suh-mtiscular glands appears, occupying the whole lateral aspects of the body and reaching far backward. As usual, they are multicellular. Their ducts pierce the muscles and integument of the body wall to open on the sides of the body in enormous numbers. Farther back they are restricted to a narrow region in each section just lateral to the nerve cords, and open somewhat ventrally from the lateral edge. They continue in dimin- ished numbers, but of large size, backward beyond the point where the esophagus opens into the intestine (p1. xii, fig. 3). Aliitientary canal, — A pair of remarkably narrow intestinal caeca reach forward well toward the brain. Their diameter for a long dis- tance back is insignificant compared with that of the esophagus. They occupy positions ventro-laterally to the proboscis sheath and above the esophagus. Occasional pouches are sent off laterally into the tissues above the nerve cords. Farther back they become larger and extend laterally beyond the ventrally placed nerve cords. Towards the middle of the esophagal region the pouches become paired with considerable regularity. A well developed network of muscular fibers and connective tissue reaches between the pouches from the muscular layer above to that below the alimentary canal. The pouches lie close together still farther back, and near the posterior end of the esophagal region extend on each side below the esophagus and open together from opposite sides. The two intestinal caeca are thus connected to- gether. From this point backward the esophagus decreases rapidly in size, the caecum becomes large and is divided into numerous pouches by fibrous partitions extending between the muscular layers above and below, and eventually the esophagus opens into the intestine by a narrow slit in its dorsal wall (p1. xii, fig. 3). Re-productive organs. — Far in front of the opening of the esoph- agus into the intestine the reproductive glands make their first appear- ance. The anterior pouches are scattered, and lie above the intestinal caeca well towards the sides of the body. These open directly on the dorso-lateral surfaces. Farther back similar ones appear below the in- testinal canal, and these open ventrally (p1. xii, fig. 3). In the intes- tinal region the glands are very numerous and are scattered just inside the muscular layers all over the body — dorsally, ventrally and laterally. As many as 20 to 30 glands in a male are met with in a single section. 28 COE Their ducts lead directly to the surface of the body, and consequently open at any point instead of in certain definite regions as in many species. Both lateral nerves and blood vessels join above the hind gut as in most other Nemerteans — the union of the nerves lying ventral to that of the blood vessels. This species is named in honor of Prof. Dr. Otto Burger, of Got- tingen, w^hose monograph on the Nemerteans of the Gulf of Naples forms by far the most important contribution which has yet appeared relating to this group of worms. Habitat. — Several individuals are often found knotted together in a seemingly inextricable mass. The body lies coiled in a mass, and is bent and folded in sharp angles. The species was found under mussels on rocks between tides at Glacier Bay (W. E. Ritter) and at Sitka. ZYGONEMERTES Montgomery. Zool. Jahrb., x, p. 2, 1897. A species of Nemertean was found at Sitka which agrees very closely with Verrill's description of Amphiporus virescens} The detailed anatomical description given by Montgomery,* however, shows at once that the Alaska Nemertean is a distinct species. Mont- gomery has created a new genus for A. virescens Verrill based on its anatomical peculiarities, especially the structure of the proboscis and proboscis sheath. This genus he named Zygone?nertcs^ with the following characters as its chief peculiarities : (i) The proboscis sheath reaches to the end of the body, while (2) the thickened proboscis is but half as long; (3) basis of central stylet large, elongated ; flattened or slightly concave posteriorly ; (4) central stylet massive, not half the length of its basis : (5) ten or eleven pro- boscidial nerves; (6) body contractile, shape like A^iiphiporus^ not as elongate as in Emplectonema ; (7) ocelli numerous and small, ex- tending along the nerve cords posterior to the brain. While I am of the opinion that these characters are mainly of spe- cific rather than of generic rank, yet I am convinced that because of the large number of species already in the genus Atnphiporus the establishment of this new genus will be of great practical convenience. The most tangible characters of the group are : ( i ) the eyes extend posteriorly beyond the brain along the lateral nerve cords, and (2) the 'Trans. Connecticut Acad., viii, p. 20, 1892. 2 Zool. Jahrb., x, p. 2 to 4, 12, 1897. ALASKA NEMERTEANS 29 basis of the central stylet is massive and has a concave or a truncated posterior end, while the stylet itself is comparatively weak. Of course the number of nerves in the proboscis cannot be considered a generic character. There are two Alaska species, then, which may be placed in the genus — Z. thalassma^ which is closely allied to the type species, and Z. albida, which is a minute, white form. 8. ZYGONEMERTES THALASSINA sp. nov. p1. II, fig. 5 ; p1. VII, fig. I ; p1. xiii, fig. 2. Zygojiefnertes thalassina differs from Z . virescens chiefly in the following peculiarities : Color of former species much darker ; eyes more numerous ; shape of basis and central stylet of proboscis differ- ent ; usually 5 stubby stylets in each lateral pouch, and 1 2 nerves in proboscis. There ai^e minor differences in other anatomical details. Zygonemertes thalassina has a slender, somewhat flattened body ; head broad, not sharply marked off from body ; one or two pairs of very inconspicuous oblique furrows on sides of head. The worms are active, and are rest- less in confinement. Ocelli. — Ocelli very numerous ; arranged in two or three longitudinal rows along sides of head, and extending backward along lat- eral nerve cords far behind brain. They are smaller posteriorly than in front and are more widely scattered. In front of the brain there are sometimes 40 or more ocelli arranged in two or three irregular rows (fig. 5) which follow the general outline of the lateral mar- gin of the head. Immediately in front of the brain about a half dozen much smaller eyes are seen, and lateral to the brain are com- monly 10 to 12 ocelli of moderate size. Be- hind these are usually 8 to 15 small ocelli scattered along the nerve cords at irregular intervals. These commonly reach nearly as far behind the brain as the distance from the brain to the tip of the snout in moderate ex- tension. In sections (p1. xiii, fig. 2) they are found to lie quite internal to the body musculature and almost di- rectly upon the lateral nerves. Size and color. — The specimens obtained were from 30 to 60 mm. Fig. 5. Zyg07iemertes thalassitia. Dorsal view of head showing outline of brain and lateral nerves, and arrangement of ocelli. X12. 30 COE in length in moderate extension, and ratner slender. The color was olive-green both above and below. A coating of brown particles was sometimes scattered over the dorsal surface. The proboscis is pale. Proboscis. — The proboscis sheath extends to posterior end of body ; the proboscis extends only about half way to posterior extremity. The central stylet is remarkably short and blunt. Its basis (p1. vii, fig. i) is at least twice, and often three times, as long as the stylet itself, and is massive in proportions. Its diameter is nearly constant throughout its length, although it is narrowed in front and constricted slightly at about three-fourths the distance towards its posterior end. The pos- terior extremity is sharply truncate or concave and often shows serrated edges (p1. vii, fig. i). There are two lateral pouches of accessory stylets, and each usually contains five stylets similar in size and shape to the central stylet. The character of these remarkably stubby stylets is shown in p1. vii, figures \a and \b. The lateral stylet pouches are imbedded in a thickened glandular wreath, yellowish in color, which lies around the circumference of the proboscis in front of the stylet. The mass of muscular tissue surround- ing the basis of the central stylet is unusually thickened, and this ne- cessitates an unusually long canal leading from the posterior chamber to the stylet region. In each of the two specimens sectioned the pro- boscis was provided with 12 nerves. Cerebral sense organs. — Situated immediately in front of brain, but in the ventral portion of the head. The canals leading to the ex- terior pass obliquely forward and downward, and open on the antero- ventral surface near the tip of the snout. Nephridia. — The nephridia extend from a point immediately in front of the brain backward throughout nearly the whole length of the esophagal region. There is a single pair of efferent ducts situated in the region of the brain, and opening to the exterior on the ventro- lateral aspects of the body. In the specimens examined one of these ducts lay as far forward as the ventral commissure of the brain, while the other was situated opposite the posterior end of the ventral brain- lobe. Montgomery^ mentions for Z. virescens that the superficial epithelium of the body contains numerous yellowish, sickle-shaped bodies situated among the epithelial cells. These also occur in Z. thalassma, but here they are of various sizes, and differ greatly in shape. Some are sickle-shaped, others are rod-like or irregular in form, and have every appearance of having been formed in the gland cells of the epithelium. 'Zool. Jahrb., x, p. 2, 1897. ALASKA NEMERTEANS 31 Somewhat similar bodies may be found in various other Metanemerteans, notably in Amphiporus bimaculaius and A. leuciodus. Here too they appear to originate as secretions in the glandular cells of the epithelium. The lateral nei've cords unite above the posterior end of the alimen- tary canal as usual. The tissues of the head in front of the brain contain large numbers of sub-muscular glands which open mainly on the anterior extremity, although a portion of them open directly outwards. These sub-mus- cular glands do not extend back into the esophagal region as they do in many other species. The intestinal caecum is paired from its origin. Its two branches ex- tend forward on each side of the esophagus until they reach nearly to the brain. Here they bend dorsally (p1. xiii, fig. 2) and terminate by abutting closely against the posterior ends of the dorsal brain-lobes. The ova are large and opaque. They appeared to be fully mature in June. Habitat. — This species was found only at Sitka, where it was not uncommon among hydroids, broken shells, etc., in clear water. 9. ZYGONEMERTES ALBIDA sp. nov. pi. Ill, fig. 2 ; p1. viii, fig. 5. This is a small, moderately slender spe- cies, very active in habits. It was met with only at Victoria, B. C, on the piles of a wharf. Sexually mature individuals were not more than 25 mm. in length. It was associated with Amphiporus leuciodus., which it somewhat resembles. Color. — There are no markings on the body, the color being white with a tinge of yellow both above and below. Ocelli. — This species may be easily rec- ognized from other described forms by the arrangement of the eyes (fig. 6). These are scattered somewhat irregularly on the head in front of the brain, and extend back- ward as a single row on each side along the lateral nerves for about two-fifths the length of the esophagal region. The ocelli on the head are roughly arranged in two irregular rows on each side. There is an outer row Fig. 6. Zygotiemertes al- bida. Outline of anterior portion of body to show arrangement of ocelli, br, brain ; «, lateral nerve ; ps, proboscis sheath. X 12. 32 COE of 9 to 1 3 eyes near each lateral border of the snout, and another row inside and somewhat posterior to the latter, containing about 6 small ocelli on each side, and of these 3 commonly lie nearly above the brain. Back of the brain 7 to 10 ocelli occur at widely separated intervals above the lateral nerve on each side. Proboscis. — Proboscis comparatively large ; central stylet moderately slender ; basis dark, moderately elongated, of nearly uniform diameter throughout, and sharply truncated posteriorly (p1. viii, fig. 5). Ac- cessory stylet pouches two in number, each commonly containing two or three moderately slender stylets. Cerebral sense organs. — Large, and situated immediately in front of brain. The eggs of these worms are few in number, but are fully Yi the diameter of the body in size ; consequently there can be but a single row on each side. The sexual products are mature m June. PARANEMERTES gen. nov. Body of large size, rather stout, usually much rounded in the eso- phagal region but flattened posteriorly. Head not marked off from body, of variable form, in some states of contraction often emarginate in front. There is commonly a pair of inconspicuous oblique furrows back of head. The nerve cords and blood vessels join on the dorsal side of the posterior end of the intestine. The mouth opens into the rhynchodaeum. The proboscis sheath commonly reaches but little beyond the middle of the body — in P. peregrina to ^ the distance towards the posterior extremity. The proboscis is small (^P. pallida)., of medium size {P. peregrina)., or large (/'. carnea). There is a single central stylet in the proboscis, and usually four or more pouches of accessory stylets. Some indi- viduals of P. peregrina., however, have but two. Ocelli are numer- ous and minute. The cerebral sense organs are rather small and lie in front of the brain. Sub-muscular glands are usually well developed. The species of this new genus show considerable resemblance to those of Emplectonema Stimpson. They differ, however, in general shape and appearance of body, never being very long or slender, and individuals do not coil their bodies into a mass as those of Emplecto- nema are so prone to do. The proboscis is much larger and the central stylet is always well developed. The proboscis sheath is also much longer. In many respects the genus resembles Amphiporus. The body is much longer, however, and not nearly so contractile, the proboscis is not nearly so large, and the proboscis sheath is not so long. ALASKA NEMERTEANS 33 The armature of the proboscis resembles that in some species of Am- phiporus. Paranemertes is represented on the coast of Alaska by at least three species. 10. PARANEMERTES PEREGRINA sp. nov. p1. II, fig. 6; p1. Ill, fig. 5; p1. vii, fig. 7. Body moderately elongated, flattened below, rounded on dorsal sur- face ; anterior portion slightly more slender than middle region ; pos- terior tapering gradually to extremity. Head very variable in shape, commonly wider than the portion of body immediately following ; flattened, sometimes sharply demarcated by lateral constrictions. Tip of snout pointed, rounded, or emargi- nate according to the state of contraction. On each side of the head is an inconspicuous V-shaped furrow, with the ends pointing ob- liquely forward above and below. The upper limb of the furrow reaches into the dark color of the dorsal surface, where it is sometimes conspicuous from its light color. Color. — The color varies considerably as may be seen from a com- parison of p1. II, fig. 6, and p1. hi, fig. 5, but is commonly homo- geneous dark brown, orange brown, or purplish brown above and on the sides, while the ventral surface is opaque white or whitish yellow. In most specimens the dark purple of the dorsal surface encroaches considerably on the ventral surface, shading gradually into whitish or yellowish. Seen from the ventral surface therefore the worms appear dull white or yellowish white, with a wide border of dark purple. Oftentimes the whitish color occupies scarcely more than the median third of the ventral surface. Anteriorly the whitish color covers the whole ventral surface, and on the head it covers also the sides and front. The head is dark purplish brown above, bordered in front and laterally by the light color of the ventral surface. At the posterior border of the head is a small angular spot on each side corresponding in color with that of the ventral surface. Behind the head is a nar- row, V-shaped, dorsal marking, usually of lighter color, with its ends pointing forward and outward. In paler individuals the pinkish color of the brain lobes can be distinguished. The natural color of the body is well retained in formalin or alcohol. Size. — Individuals of all sizes from 20 to 400 mm. were met with, but the most common size was about 150 mm. in extension. The width was commonly about 5 mm. Proc. Wash. Acad. Sci., March, 1901. 34 COE Fig. 7. Par- anemertes per- egrina Out- line of anterior portion of body to show the ar- rangement of ocelli. Dorsal surface. X 6. Ocelli. — Numerous minute eyes are arranged in two groups on each side (fig. 7)* Of these, an anterior group of 13 or more small pig- ment spots are scattered along each side of the antero-lateral margin, while about as many more occupy an irregular cluster on each side just in front of the brain. These latter ocelli are usually well separated from the anterior, or mar- ginal groups. Proboscis. — Proboscis of medium size (as in AinpJii- portis)., slightly yellowish, and usually everted when the animal is killed. The extruded proboscis is short and thick with an unusually slender posterior chamber. The armature (p1. vii, fig. 7) consists of a small, slender, sharply pointed central stylet, and with either 2 or 4 pouches of reserve stylets. The basis of the central stylet is very small and slightly enlarged posteriorly ; the reserve stylets are slender and sharp like the central one, and commonly number from 6 to 10 in each pouch. When four pouches are present the number of stylets in each is as great as when there are only two pouches. The mouth and proboscis open together, but the rhynchodiEum is short. The proboscis sheath reaches about three-fourths the length of the body, or sometimes more than three-fourths. In each of four specimens sectioned there were 14 con- spicuous nerves in the proboscis. The proboscis has a remarkably nar- row ring of gland cells on the periphery near the posterior end of the basis of the central stylet. A crowded mass of multicellular glands occupies the anterior por- tion of the head. The anterior ones open on the tip of the snout. In the brain region they open inostly on the lateral surfaces of the body, vvrhile farther back, and in the esophagal region, they assume the character of sub-muscular glands. No difference in appearance is no- ticeable between the cephalic glands and those in the esophagal region. They are present in the esophagal region only about as far back as the openings of the nephridia. Throughout their course they open to the exterior (by innumerable ducts which pass through the muscular and basement layers) on the ventro-lateral aspects of the body. Alijnentary canal. — A pair of slender branches of the intestinal csecum reach forward nearly to the brain commissures and lie well above the lateral nerve cords. At about the point of the nephridial openings these branches pass ventrally and occupy a position beneath the esophagus. Another pair, coming forward from behind, take ALASKA NEMERTEANS 35 their places. The ventral branches join to form the main median csecum, from which short branches pass obliquely forward and dor- sally at intervals. In cross section two pairs of branches are usually seen besides the main czecum. One pair of these lies above and one be- low the lateral nerves. They are disposed in such a way that one pair ends at about the point where the second pair anteriorly originates. The branches are only irregularly arranged in pairs. The esophagus opens into the dorsal wall of the main csecum. Nephridia. — The nephridia occupy the anterior yi of the esoph- agal region. They are large, with numerous branches lying above the lateral nerves, and frequently passing internally to the nerves and be- neath the esophagus. They reach forward nearly to the brain. At about Yi of their distance posteriorly the main nephridial tubes, lying above the lateral nerves increase greatly in size and a pair of remark- ably large efferent ducts pass externally to the lateral nerves to open on the lateral aspects of the body slightly below the lateral inargins. The main duct reaching posteriorly from this point is larger than that in front. Blood vessels. — There is a pair of large blood lacunae in the head as usual ; they join anteriorly by a broad anastomosis. The three longitu- dinal vessels are well developed to the end of the body where they an- astomose above the anus. Sometimes the dorsal vessel lies beside or even above the proboscis sheath throughout a portion of its course, instead of below the sheath as usual. Nervous system and sense organs. — The cerebral sense organs lie well in front of the brain, and external to the blood lacunae. They open into a slight furrow on the lateral aspects of the head a little an- terior to their own position. The lateral nerves form a commissure above the anus as usual. Reproductive organs. — The sexual products were nearly mature in June and July. They are formed in numerous pouches which sur- round the intestinal canal on all sides. In a male as many as twenty sexual pouches were seen in a single section. They open directly to the exterior, whatever be their position. Habitat. — This is a restless Nemertean, and on cloudy days was fre- quently met with crawling about over the stones on the beach between tides — which peculiarity has suggested its specific name. It was found abundantly at nearly all the collecting stations from Victoria, B. C, to Unalaska Island, and is one of the commonest Nemerteans of the coast. It occurs from low tide well up toward high water mark in every variety of location — under stones, among seaweeds, barnacles, mus- 36 COE sels, etc. The individuals are very voracious feeders, and w^ere taken not infrequently with partially swallowed Chaetopods. Their tenacity of life is remarkable — they will live for days in a small quantity of filthy water. II. PARANEMERTES PALLIDA sp. nov. p1. VII, fig. 3; p1. XII, fig. I. Body rather large, stout, rounded, and almost cylindrical anteriorly, somewhat flattened behind when extended ; head variable in shape, not sharply marked off from portions immediately following, at certain states of contraction emarginate in front. A pair of incon- spicuous oblique furrows back of head. When contracted the worms are nearly cylindrical and of about the same diameter throughout, ex- cept at the extremities, both of which are pointed. Color. — The whole body, both above and below, is commonly uni- form opaque white, sometimes showing traces of yellowish or reddish tints, especially in the anterior portions. Ocelli. — Ocelli minute and numerous. In ordinary states of con- traction they are arranged in a pair of elongated, irregular clusters on the antero-lateral margins of the head. The number of such ocelli is sometimes 30 or more in each of the two clusters. Proboscis. — Small, short, and unusually slender (p1. xii, fig. i). Its armature consists of a moderately slender central stylet and usually 4 pouches of accessory stylets. The basis of the central stylet is mod- erately slender, slightly constricted near its middle portion, rounded behind, and of approximately equal length with the stylet (p1. vii, fig. 3). There are commonly two accessory stylets in each of the 4 pouches. The chambers posterior to the stylet apparatus are remark- ably narrow. The mouth opens into the rhynchodagum. The proboscis sheath extends but little beyond the middle of the body, and sometimes not so far as the middle. One specimen had 9 nerves in the proboscis ; an- other had 10. These nerves do not all enter the proboscis from the ventral side, as they do in Amphiporus angulatus., but those supply- ing the dorsal portion enter direct from that side. Closely packed sub-muscular glands are present on the right and left sides of the body, and extend well inward towards the median line. Their ducts pierce the musculature and other layers of the body walls mainly on the latero-ventral aspects of the body. Twenty or more are frequently met with in a single section. These glands occupy also the region in front of the brain, and extend backward in decreasing ALASKA NEMERTEANS 37 numbers to the commencement of the intestinal region. In front of the brain is a large and irregular cluster of glands, which open ante- riorly on the tip of the snout. Cerebral sense organs. — Situated in front of brain, and near latero- ventral margins of head. The ducts which place them in communi- cation with the exterior run obliquely forward and downward, and open immediately on the surface, Nephridia. — The nephridial canals extend from near the brain throughout almost the entire esophagal region. The main trunks lie above the lateral nerve cords, and send off numerous branches both ventral and dorsal to the nerves. There is a single pair of remarkably large efferent ducts opening just below the lateral margins of the body, and slightly anterior to the middle of the esophagal region. In one series of sections these ducts are so precisely paired that both ap- pear in a single section (pi. xii, fig. i). The efferent ducts pass from above obliquely downwards and external to the nerve cords. The blood-vascular system consists of cephalic lacunag, and anasto- mosing longitudinal vessels, as in related genera. The intestinal cascum does not reach forward nearly to the brain. There are comparatively few lateral diverticula (p1. xii, fig. i). The lateral nerve cords unite above the posterior end of the intestine. Parane7nertes pallida was found only at Yakutat and at Sand Point on Popof Island, and few specimens were obtained. These were about 150 mm. to 250 mm. in length, and perhaps 5 mm. in width. They were found between tides under stones covered with algse. 12. PARANEMERTES CARNEA sp. no v. pi. Ill, figs. 3, 4; p1. VII, fig. 4 ; p1. VIII, fig. 7. This species was found to be extremely variable in size, shape of body, and head, and especially in the armature of the proboscis. As shown in pi. iii, figs. 3 and 4, the body is rather stout, rounded in the esophagal region, flattened both above and below posteriorly, and ending rather abruptly behind. The head is very variable in shape, being pointed, rounded, broadened, or emarginate in front, according to its state of contraction. It is most commonly a little broader than the parts immediately following, and is not distinctly marked off, although a slight oblique furrow on each side is sometimes seen behind the brain. From the dorsal surface the furrows of the two sides give the appearance of a very faint V-shaped marking with the angle pro- jecting backward in the median line. A little farther forward, as seen in p1. viii, fig. 7, a pair of shallow furrows occupies the sides of 38 COE the head. These are also V-shaped with the angle projecting back- ward on the lateral margins. The ventral limb of each V-shaped fur- row reaches nearly to the opening of the rhynchodseum ; on the dorsal surface the ends of the dorsal limbs are separated by about J/S the diameter of the body in ordinary states of contraction (fig. 8). In microscopic sections the V-shaped grooves on each side of the head are conspicuous, because of their differentiated epithelium. In these shallow depressions the epithelial cells are of smaller size, more slender in form, and seem to partake more of the nature of sensory cells. In these grooves the ordinary glandular cells are wanting. In the ventral limb of each V-shaped groove opens the tube which places the cerebral sense organs in communication with the exterior. Ocelli. — There are commonly 20 to 32 eyes on the head arranged in 4 more or less distinct clusters, though their relative positions change with the contraction of the head. The two anterior clusters contain about 4 to 6 eyes each, and occupy the antero-lateral margins of the head (figs. 8, 9). The posterior clusters lie directly back of these, Fig. 8. Fig. 9. Figs. 8 and 9. Paranetnertes carnea. 8. Outline of head from dorsal sur- face showing arrangement of ocelli. The two pairs of lateral indentations indi- cate the lateral and dorsal furrows. X S. 9. Outline of the head when extended. Dorsal surface, showing arrangement of ocelli. X 6. and immediately in front of the brain. Each of these clusters contains S to 12 scattered ocelli. An individual from Taku Harbor had 6 ocelli in each anterior cluster, and 10 in each posterior one. Another specimen had only 3 or 4 eyes in each of the four clusters, but in this case the ocelli were larger. A specimen from Popof Island had 3 large eyes in each anterior, and 6 to 8 in each posterior cluster ; one from Virgin Bay had 6 in each anterior, and 7 in each of the others, ALASKA NEMERTEANS 39 and had 3 single eyes between the anterior and posterior clusters, while one from Yakutat had 3 large ocelli in a row on the anterior margin of the head, and a pair of scattered clusters of 8 to I3 eyes each in front of the brain. When the head is contracted so that it is emarginate in front, the arrangement of the eyes into clusters disap- pears, and they are then all scattered irregularly on the antero-lateral margins. Figs. 8 and 9 show the general arrangement of the eyes. Color. — The whole body, both above and below, is a homogeneous, very pale red or flesh-color (p1. hi, figs. 3, 4), and is entirely with- out markings except for a longitudinal median line of deeper red, showing the position of the proboscis sheath, and the deeper color of the intestinal lobes. In some specimens the reddish color was more pronounced anteriorly, and some were very pale. The intestinal lobes are seen through the clear tissues of the body walls as narrow, trans- verse markings, slightly darker than the rest of the body. The reddish color of the brain and lateral nerves is often conspicuous from the dorsal surface (p1. hi, fig. 3). Size. — Individuals were seen which were 500 mm. long in greatest extension, although the majority were less than half this length. Proboscis. — Mouth and proboscis open together through a subter- minal pore. The proboscis is large (p1. viii, fig. 7) and of moderate length. The short proboscis sheath does not reach far beyond the middle of the body. The armature of the proboscis shows marked variations. The size and shape of the central stylet and its basis, however, remain fairly constant. The central stylet is of the regular Amphiporus type, is moderately slender, and rests on a moderately slender basis. The basis is slightly narrower in front and is rounded behind (p1. vii, fig. 4). The number of pouches of accessory stylets is commonly from 6 to 12. One specimen had 12 of these pouches, each with one or two slender stylets ; each of two others had six pouches with two stylets in each pouch. Three specimens had each twelve nerves in the proboscis, while a fourth specimen had but eleven. Cerebral sense-organs. — Unusually small and situated some distance in front of brain-lobes. They occupy positions very close to the ven- tro-lateral borders of the head, and beneath the cephalic blood lacunas. Nephridia profusely branched, and extending throughout the greater portion of esophagal region, though they do not reach the brain. Their numerous branches ramify both above and below the lateral nerve-cords, and several efferent ducts of small size lead to the exterior from both the dorsal and ventral branches. There may be about five 40 COE pairs of efferent ducts, all of which open in the immediate vicinity of the lateral nerves. In one series of sections a small efferent duct from one of the branches above the lateral nerve was followed only two sec- tions farther back by a similar, though larger, duct from a branch below the lateral nerve on the same side. The nephridia end posteriorly near the point where the esophagus opens into the intestine. Sub-muscular glands of limited number lie between the muscula- ture and the intestine and proboscis sheath. These glands are closely packed together in the head in front of the brain ; back of this point they become widely scattered, although they do not cease entirely until back of the esophagal region. A short intestinal caecum with a few wide lateral diverticula extends forward beneath the esophagus. This caecum is shorter than in most species of the genus, and does not reach nearly to the brain. The esophagus also is short and opens directly into the dorsal wall of the intestine. A pair of large blood lacunae occupies the anterior portion of the head as usual. The lateral nerves and longitudinal blood vessels join above the pos- terior end of the alimentary canal, as in most species. Reproductive glands in both male and female are very numerous, and are situated both above and below the intestine. They open di- rectly to the surface, as could be determined from their rudimentary ducts, although the sexual products were very immature in June and July. Habitat. — This species is conspicuous because of its clear, rosy or flesh-like color, which is all the more striking in contrast with the black mud in which it is usually found. It occurs between tides in muddy locations over a large portion of the southern Alaska coast. It was collected at Taku Harbor, Sitka, Yakutat, Prince William Sound, and Popof Island, although only a few were found at each locality. Usually but one or two specimens were found in several hours' digging. AMPHIPORUS Ehrenberg. Symbolae Physicae, Berlin, 1831. This is by far the most common genus on the Alaska coast, and to it belong six of the thirty species of Nemerteans collected. The genus Afnphiporus includes mostly rather stout, solid, often flattened forms, usually of considerable size, which are capable of an almost incredible amount of extension and contraction. A few forms, however, are long and cylindrical, even when contracted, but others ALASKA NEMERTEANS 41 can contract until the body becomes almost barrel-shaped. The worms can neither swim nor roll up spirally. Proboscis. — Provided with a single, well-developed central stylet, with a cartridge-shaped basis, and with two or more pouches of acces- sory stylets. The proboscis sheath usually reaches nearly or quite to the end of the body. Ocelli. — Usually present in very considerable numbers. A few forms are without eyes, and a few others have but a single pair — there are never 4. The eyes do not extend far behind the brain. Cerebral sense organs. — Usually well developed. Their position is most commonly in front of the brain, but they are sometimes beside or even behind the ganglia. 13. AMPHIPORUS ANGULATUS (Fabr.)Verrill. pi. VI, fig. 4 ; p1. VII, figs. 2, 2a ; pi. xi, fig. 2 ; p1. xiii, fig. 3. Fasciola angiilata O. Fabricius, Muller's Verm. Terrest. et Fluv., i, p. 58, 1774. Omatoplca stiinpsottu G\KAV.r>, in Stimpson, Invert, of Grand Manan, Smith- sonian Contributions to Knowledge, p. 28, 1853. Nareda siiperba (?) Girard, loc. cit. Cosmoc ph da beringiana Stimpson, Proc. Acad. Nat. Sci. Philadelphia, p. 165, 1857. Amphiporus angulatits (Fabr.) Verrill, Marine Nemerteans of New Eng- land, Trans. Conn. Acad., p, 10, 1892. "This large and conspicuous species is gen- erally easily recognized by its clear dark purp- lish or chocolate-brown color above, with pale margins and a trapezoidal or triangular white sjjot on each side of the head and usually with a narrow white line across the neck ; and by the pinkish or flesh-colored lower surface. Ocelli in two or more rows in an elongated groove on each antero-lateral margin of the head, and a pair of small sub-dorsal clusters on the transverse white nuchal band." (Verrill, loc. cit.) The arrangement of the eyes and markings on the head of the Alaska specimens are shown in fig. 10 and in p1. vi, fig. 4. In ordinary state of contraction the body is rather short and stout. When disturbed it can become so greatly thick- ened anteriorly that its transverse diameter is fully J/3 as great as its length. In extension the body is but moderately elongated, and is relatively broad and flat. It contracts very much as does a leech. Fig. 10. Ampki- portis angulatus. Dor- sal view of anterior por- tion of body showing markings on the head and the arrangement of ocelli. X 8. 42 COE The Alaska specimens are commonly larger than have been recorded elsewhere, often measuring 200 mm. or more in length and 10 mm. in width. Proboscis. — The proboscis is large, thick, and pale reddish or salmon in color. The smallest specimen collected had 17 nerves in the proboscis; four other specimens examined had each 18 probos- cidial nerves, one had 19 nerves, and two others had 20 each.^ This shows more strikingly than has previously been pointed out that the number of nerves in the proboscis is variable to a very considerable ex- tent. Burger '^ has shown that Drepanoporics crassus may have 19 or 20 nerves, and D. spectabilis 24 or 26. Nevertheless in the other Alaska species the number has been found surprisingly constant. The number of nerves in any particular proboscis remains perfectly con- stant so far as I have observed from the anterior end back as far as the stylet region. Here they break up into a plexus and lose their iden- tity. The nerves in A. angidatns enter the proboscis at its anterior attachment and in its ventral portion (p1. xi, fig. 2). They then divide into their definite number of branches (usually 18) which pass obliquely dorsally and arrange themselves symmetrically on the periph- ery. The proboscis sheath extends within a few sections of the pos- terior end of the body. The armature of the proboscis is made up of a moderately slender central stylet, and (usually) two pouches of accessory stylets. The basis of the central stylet is about as long as the stylet itself. It is moderately slender, constricted near its middle (p1. vii, figs. 2, 2a), enlarged and rounded posteriorly. Each reserve pouch commonly contains 5 to 7 rather slender stylets, similar in size and shape to the central stylet. Ocelli. — Numerous and characteristic in arrangement. The dark pigment on the head, however, often renders them difficult of accurate determination. Girard^ states for Otnatoplea stimpsonii that there are six or more minute eyes " situated in an oblique, simple row, on either side of the head anteriorly." The same author (loc. cit.) describes >0£ eight specimens of this species from Eastport, Maine, one had but 17 nerves in the proboscis, six had 18 each, and one had 19 or 20. Other anatom- ical details in the eastern form agree perfectly with those of specimens from Alaska. I have recently examined a number from the original locality of Stimp- son's C. beringiana (Bering Strait), and have no doubt as to the specific identity of this form with that from southern Alaska and from Eastport, Maine. "Fauna u. Flora des Golfes von Neapel. Monogr. 22, Nemertinen, p. 372, 1895. 3 Marine Invert. Grand Manan, Smithsonian Contr. to Knowledge, p. 28, 1853. ALASKA NEMERTEANS 43 Nareda superba as having but a single pair of rounded ocelli situated wide apart on the transverse white band of the neck. It seems highly probable, as Verrill suggests/ that both of the species are identica)"; in the one case only the marginal eyes were seen, while in the other the cerebral clusters were supposed to represent single eyes and the marginal ones were overlooked. Verrill ' describes the eyes correctly, and his diagnosis of the species is so full and accurate that it is neces- sary to describe here the internal anatomy only. A pair of elongated clusters of ocelli lies on the antero-lateral margins of the head, and an- other smaller cluster on, or near, the angular white spot on each side of the head. As shown in fig. 10, each of the anterior clusters may contain upwards of 20 ocelli arranged in two or more irregular rows nearly parallel with the antero-lateral margin of the head, while the posterior groups may consist of 8 to 15 similar ocelli. The posterior groups are situated deep in the tissues of the head. Of course the number of ocelli varies greatly in different individuals. Cerebral sense organs. — Well developed. They lie a little in front of the brain, beside the esophagus, and below the cephalic blood lacunae. Each sense organ has a wide canal which leads a short dis- tance anteriorly and opens to the exterior on the latero-ventral aspect of the body. The brain itself is of large size, with a thick ventral and narrow dorsal commissure (p1. xi, fig. 2). Nephridia. — The nephridia extend from near the brain (p1. xi, fig. 2) well backward in the esophagal region. In one specimen there were two pairs of efferent ducts opening on the latero-ventral aspect of the body ; in another only one pair. Cephalic glands. — The cephalic glands open on the tip of the snout and are well developed. Sub-muscular glands, likewise, are remark- ably abundant. They reach from the brain region well back towards the end of the esophagus. They are multicellular, each one being composed of upwards of a score of large, vacuolated cells with small nuclei situated on the side farthest from the lumen. Each gland has a twisted duct leading through the muscular layers, basement membrane, and integument, and opening to the exterior on the ventro-lateral aspects of the body (p1. xi, fig. 2). Beneath the esophagus a broad caecal appendage of the intestine stretches forward well toward the brain region. This caecum consists of a large median canal with pouch-like diverticula extending dorsally above the lateral nerve cords. There is the usual anastomosis of the three longitudinal vessels, and ^Marine Nemerteans of New England, Trans. Conn. Acad., viii, p. 12, 1892. 44 COE of the pair of lateral nerve cords (p1. xiii, fig. 3), above the hind gut and slightly in front of the anus. As seen from the figure, the union of the blood vessels is directly dorsal to that of the nerve cords. The reproductive glands occur both above and below^ the alimentary canal. Sexual products were not nearly mature in June and July. Habitat. — The species is extremely abundant along the whole Alaska coast as far west as Unalaska Island, and Stimpson records it from Bering Strait. It is found under stones between tides in all sorts of situations. Stimpson's specimens came from a depth of five fathoms. The species is found on the Atlantic coast of North America from Massachusetts Bay to Greenland (Verrill, loc. cit.^. 14. AMPHIPORUS BIMACULATUS. pi. I, fig. 4; pi. V, fig. 10; p1. viii, fig. 2 ; p1. XII, fig. 2. Body rather short, broad, and flattened both above and below. Head narrower than parts immediately following. Body of about the same width and thickness throughout esophagal and intestinal regions. Posterior extremity tapers rather abruptly to the pointed or rounded end. Opening of rhynchodaBum situated on subterminal portion of snout. From near this opening a pair of slits pass obliquely backward and upward behind the eyes to the brain region. Color. — The color of this species is very striking. The whole dor- sal surface back of the head is deep brownish orange, somewhat paler behind. The head is without color, or of a very much paler color than the rest of the dorsal surface, and in the center of this pale area two oval, black or very dark brown spots lie side by side. These are very characteristic, and are conspicuous even in alcoholic specimens. The black spots sometimes occupy a considerable portion of the pale area, and are sometimes sharply angular in front (p1. i, fig. 4). In the median line of the body the color is slightly paler than elsewhere and in the center of this paler stripe is a dark, but inconspicuous, longi- tudinal line. The pale stripe and dark line both fade out at a point about 3^ the distance towards the posterior end of the body. The brain lobes appear as pinkish bodies just posterior to the black cephalic spots. The whole ventral surface is of a homogeneous, pale orange or flesh color, with the exception of pinkish spots marking the position of the brain, and a slightly paler stripe below the anterior portion of the proboscis sheath. Ocelli. — The eyes are rather large, and number 25 to 30 or up- wards on each side (fig. 11). The majority lie in an irregular margi- nal row beside and in front of each of the black cephalic spots. At ALASKA NEMERTEANS 45 the posterior end of each marginal cluster the ocelli are more closely and more irregularly placed, and often occupy several rows. In ad- dition to these marginal clusters a closely set group of about a half dozen smaller ocelli is situated in the light area lateral to the posterior end of each of the dark cephalic spots. These ocelli lie deeper in the tissues of the head, and near the brain (p1. i, fig. 4). Proboscis. — The proboscis is remarkably large, and its constituent layers are very sharply defined (p1. xii, fig. 2). The proboscis sheath has a correspondingly massive development, and reaches to the very extremity of the body. The stylet apparatus of the proboscis is very characteris- tic of the species, because of the extreme minuteness of the basis of the central stylet. The central stylet itself is very long and slender, while the length of its basis is but half as great. The basis is con- stricted in the middle, and is yi as wide as long y\g. ii. Afnphi- (p1. VIII, fig. 2). There are usually four pouches poms bimaculatus. of accessory stylets. These pouches are not evenly Outline of head to distributed on the circumference, for two lie close ^'^°'^ position of , • 1 r 1 1 • 1 1 markings and ar- tosrether on one side of the proboscis, the other two . . ,,. *=> >- ' rangementot ocelli. on the opposite side. There are usually five to v 8. seven slender stylets in each of the four pouches. Most of the stylets are much smaller than the central stylet. Measure- ments of the stylets of one individual about 100 mm. long are : central stylet .12 mm. long, .015 mm. wide near base; basis of central stylet, .06 mm. long, .04 mm. wide ; largest accessory stylet, less than . i mm. long. The proboscis is provided with 16 large nerves (p1. xii, fig. 2). The mouth and proboscis open together. There are three large communicating blood lacunas in the head, one on the right, one on the left, and one dorsal to the rhynchodseum. Cerebral sense organs. — Remarkable for their large size, being fully as large as either of the brain lobes. They lie lateral to the brain, slightly behind the commissures, and in the angle between the dorsal and ventral lobes. A large process from the posterior end of the dorsal lobe furnishes the sense organs of the same side with an abundant innervation. Their posterior ends extend backwards beyond the dorsal brain lobes, against the posterior faces of which they are closely pressed. Behind the dorsal brain lobe the sense organs lie directly dorsal to the lateral nerve-cords and are bathed on their internal borders by large blood lacunas. A section through this point is not very different from a corresponding section of a Heteronemer- 46 COE tean. Of the Alaska Metanemerteans here recorded this is the only one in which the cerebral sense organs lie posterior to the brain com- missures. The canal by which each sense organ communicates with the exterior is of large size, runs anteriorly in front of the brain, and opens on the ventro-lateral aspect of the head. Nephridia. — The nephridia reach forward close to the posterior ends of the cerebral sense organs. Anteriorly there is a tangle of small vessels, but farther back these unite into a single large, branched canal which runs close beside the blood vessels above the lateral nerve on each side. From these canals a pair of large efferent ducts pass above the lateral nerve cord, and open to the exterior of the body just below the lateral margin. Sub-musctilar glands. — Present along anterior portion of esophagal region, but not very abundant. A broad and profusely branched intestinal ccecu?n runs forward from the intestine well toward the brain region. The caecum lies well beneath the esophagus and sends off numerous pouch-like branches dorsally above the lateral nerve cords. Reproductive glands. — These occur both above and below the intes- tinal canal. Although the sexual products were very immature in one of the specimens sectioned, yet the efferent ducts of the glands were formed as far outward as the basement layer of the cutis. Here each duct ended in a swollen chamber lined with cylindrical epithelial cells. Size. — The individuals of this species varied from 40 to 150 mm. in length. The largest were about 6 mm. wide and 3 mm. thick. Habitat. — The species was collected at Victoria, B. C, on the piles of the wharf ; at Sitka among hydroids, etc., near low water (W. E. Ritter), and a finely preserved specimen from Puget Sound, State of Washington, was given me by Prof. Trevor Kincaid. 15. AMPHIPORUS TIGRINUS sp. nov. p1. IV, figs. 5-8; p1. viii, fig. 4; p1. X, figs. 3, 4. Body moderately slender, rounded throughout, head not marked off from parts immediately following, rather narrow and pointed in front ; posterior extremity of body narrow. On each side of the head is a shallow, inconspicuous, oblique groove. Color. — In June, at the time the specimens were collected, the sexual products were fully mature, and the species showed marked sexual color varieties. The prevailing color of the females was yel- lowish orange both above and below, but except in the esophagal re- gion, this color was to a great extent obscured by the dark olive green ALASKA NEMERTEANS 47 color of the mature ova. These ova developed in large pouches on each side of the body, and each pouch w^ith its contents appeared as a dark green spot. In many cases several adjacent pouches lie nearly in contact, giving the external appearance of dark green blotches. Seen directly from the dorsal surface the green spots appear on each side in more or less regular pairs, those of the tw^o sides being separated by an interrupted, narrow, longitudinal, median band of yellow. From the sides the ovaries appear as irregular transverse stripes of dark green alternating with the yellow color of the body — hence the specific name, tigrinus. The males are much less deeply colored. They are pale yellowish with a slight tinge of green, and the spermaries appear as innumerable cream-colored specks. Both males and females have a narrow, longitudinal, median band of brown- ish on the anterior dorsal portion of the body. After preservation in alcohol both sexes assume a greenish color, which is retained even after mounting in balsam. Ocelli. — The eyes are numerous, and are arranged in two irregular, and scarcely separated, clusters on each side of the head in front of the brain. The individual ocelli are so irregular in shape, so variable in size, and so closely massed together, that it is difficult to determine their precise number. Many of them appear as ragged pigment masses. Commonly, however, there are a dozen or more of such ocelli in each of the anterior clusters, and perhaps 8 to lo in each of the posterior ones. The ocelli of the anterior clusters are scattered through the tissues of the head from the dorsal to the ventral surface. Some of the ocelli are three times as large as are others. In contraction all the eyes of the same side form a single confused cluster. Because of their variability of position no drawing is given of their arrangement. Proboscis. — The long and well developed proboscis is provided with a remarkably weak armature. This consists of a small central stylet and two pouches of accessory stylets. The central stylet is small and short, but is acutely pointed. Its massive basis, double the length of the central stylet itself, is short, thickened, and rounded be- hind (p1. VIII, fig. 4). In a worm 75 min. long, the central stylet measured about .075 mm. in length; the basis was .15 mm. long and .075 mm. in average diameter. The accessory stylets are, like the central stylet, short, broad at the base, but sharply pointed. They usually number about five to each pouch. The glandular wreath about the stylet is well developed, and in the specimens examined is deep green in color even after mounting in balsam. The proboscis sheath reaches nearly to the posterior end of the body. 48 COE Cerebral sense organs. — Smaller than in most species of the genus. They are situated slightly in front of the brain, but are well separated from it because they lie near the ventro-lateral border of the head. The canals placing them In communication with the exterior are, con- sequently, extremely short. Each canal opens into the shallow, oblique furrow on the side of the head. The posterior ends of the sense organs lie beneath the anterior borders of the ganglia, but much nearer the ventral surface. A pair of large nerves given off from the dorsal ganglia opposite their commissure connect with the sense organs. The lateral nerve cords unite above the posterior end of the intestine as usual. The body cavity in the esophagal region is filled with an unusually large amount of gelatinous tissue, which occupies the considerable space between the muscular layers and the esophagus and proboscis sheath (p1. x, fig. 4). In this gelatinous tissue the lateral nerves are situated, and through it a complex system of blood vessels and nephri- dial canals ramifies. The intestinal caecum is very broad and has but short lateral diver- ticula. It lies wholly beneath the esophagus, and the branches do not extend above the lateral nerves. The ctecum ends anteriorly far behind the brain region. The esophagus becomes very small before it empties into the dorsal wall of the broad intestine. The attachment of the proboscis to the tissues of the head, the posi- tion of the rhynchodaeum and its openings into the esophagus and pro- boscidial cavity, the position of the dorsal and ventral brain commis- sures, the cephalic glands and other organs are shown in p1. x, fig. 4. The sexual products are mature in June. The whole body becomes distended with the pouches of sexual elements, and the cavity of the alimentary canal is much reduced in consequence. The ova are large and deep olive-green. The length of the specimens obtained, both males and females, was about 75 to 100 mm. in extension. Habitat. — This species was met with only at Farragut Bay, where it occurred under stones in muddy locations at about half tide. 16. AMPHIPORUS NEBULOSUS sp. nov. pi. IV, fig. I ; p1. viii, fig. 6; pi. xi, fig. i. Body short, rather broad, and much flattened ; narrower anteriorly than in the intestinal region, and tapering gradually posteriorly. Mouth sub-terminal ; head pointed or expanded in front, according to ALASKA NEMERTEANS 49 state of contraction. A V-shaped furrow is present on each side of the head near the tip ; the angles of these furrows point obliquely forward above and below. Color. — Dull white or pale yellowish on dorsal surface ; very thickly mottled with confluent dark brown blotches and dots which largely obscure the ground color. Margins of the head without spots. There are faint indications of a pair of transverse lines without color — one near the tip of the snout and the other near the brain region, the latter some- times becoming a shallow, irregular, V-shaped fur- row. Ventral surface dull white or yellowish, without markings other than deeper yellow spots which indicate the positions of the genital sacs, Y\g. 12 Amikiio- and the darker color of the intestinal canal. rns nebulosus. Out- OcellL — On each side of the head are from 18 line of the head to to 25 ocelli, arranged in three irregular groups show arrangement of (fig. 13). Close to the anterior border of the , ' ^ snout are 4 or 5 large cup-shaped ocelli on each side. Behind these and bordering each lateral margin are about 8 much smaller eyes in an irregular group, while 3 or 4 small eyes are scattered between these and the anterior group. Behind each lateral group, and not far In front of the brain, about 7 to 10 small ocelli lie in an irregular cluster deeper in the substance of the head, and are therefore less easily visible. Size. — The specimens obtained measured 100 to 150 mm. in length, and 5 mm. in width. The esophagal region is short, rounded above, flattened below, and thicker than the intestinal region. Proboscis. — The proboscis sheath reaches nearly to the extreme end of the body. Proboscis thick, fairly large, and white. It is provided with 17 nerves. Basis of central stylet very much broadened poste- riorly (p1. VIII, fig. 6), flat or even emarginate behind, narrow in front. Central stylet as long as the basis, slender, acutely pointed. Accessory stylets in two pouches ; similar to central stylet, but sometimes very slightly curved ; commonly 3 in each pouch. The pouches lie well behind the central stylet in ordinary extension (p1. viii, fig. 6) . Wreath of gland-cells surrounding basis of central stylet moderately broad. In the brain region (p1. xi, fig. i) and for some distance posteriorly an abundance of large multicellular glands are thickly placed in the ventro-lateral aspects of the body, and are mostly situated among the fibers of the longitudinal muscular layer. Behind the brain these sub- muscular glands become so closely packed together that the muscular Proc. Wash. Acad. Sci., March, 1901. 50 COE layer is divided into an outer and an inner portion in the region where the glands are situated. The ducts from the glands (p1. xi, fig. i, smg) pass through the muscular layers and basement membrane to open to the exterior among the epithelial cells of the integument. These glands become smaller and more scattered near the region of the nephridial openings, but do not disappear entirely until near the end of the esophagal region. Alimentary canal. — The mouth and proboscis open together into the rather long rhynchodaeum. The esophagus is as usual in the genus. A single pair of small intestinal caeca reach forward well toward the brain region. They lie immediately below the esophagus, and near the middle line. Farther back they join a median, broad, unpaired caecum. This has wide, paired, lateral outgrowths which, still farther back, alternate with clusters of reproductive glands. These lateral ap- pendages of the c£ecum lie mostly above the reproductive glands, as well as alternate with them. Much farther back the esophagus de- creases greatly in size and opens into the intestine by a longitudinal slit in the dorsal wall of the latter. The intestinal pouches are rather deep ; the anus is subterminal. Nephridia. — The nephridial canals reach anteriorly nearly to the region of the brain, where there is a single branched longitudinal ves- sel on each side. Throughout the greater part of its length, this main canal lies above the lateral nerve cord, but sometimes lies internal to it or above it. In the anterior third of the esophagal region the main canal becomes very large ; here an efferent duct branches off, passes outside the lateral nerve, and bends downward to open on the exterior of the body on the ventro-lateral aspect. There is but one efferent duct on each side, and the two are sometimes exactly paired. Back of the efferent ducts, the nephridial canals decrease rapidly in size, and disappear far in front of the anterior end of the intestinal region. A pair of large blood lacunae lie in the anterior portion of the head as usual. In the brain region they divide into numerous smaller ves- sels (pi. XI, fig. i). The lateral vessels form a broad anastomosis with the dorsal vessel above the anus. Nervous systei7i and se?ise orgaits. — The dorsal ganglia are closely fused with the ventral. They are without distinct posterior lobes, and sink gradually into the ventral ganglia (p1. xi, fig. i). The cerebral sense organs are well developed. They lie in front of the brain, some distance ventrally from the dorsal ganglia, and communicate with the exterior by a canal which opens ventro-laterally. Each sense organ is lobulated posteriorly and provided with a large nerve {son^ ALASKA NEMERTEANS 5 1 p1. XI, fig. i) which arises from the ventral side of the dorsal ganglion near the ventral commissure. The union of the lateral nerve cords above the anus lies in the same section as the anastomosis of the three longitudinal blood vessels. A pair of small nerves from the lateral cords continues backward beyond the commissure to the end of the body. Reproductive organs. — The sexual glands first make their appear- ance in the esophagal region at the point where the unpaired intesti- nal caecum receives its pair of anterior branches. Those sexual glands which are situated most anteriorly lie below the alimentary canal, internal to the lateral nerves, and open on the ventral surface of the body. Farther back are commonly four or five reproductive pouches in a single section. These lie mainly below the intestine, but no matter what their position they all open to the surface of the body below the lateral margins. Those lying farthest from the mid- dle line and above the lateral nerves open ventrally between the nerve cords and the lateral margins. Sexual products appear to be fully mature in July. Habitat. — Beneath stones near low water at Kukak Bay, Alaska Peninsula (T. Kincaid). 17. AMPHIPORUS LEUCIODUS sp. nov. p1. VII, fig. 6. Body usually not more than 50 to 75 mm. in length, slender, elon- gated, flattened posteriorly, not capable of great contraction. Head narrower than parts immediately following. An inconspicuous V- shaped furrow on dorsal surface back of head, seen only under favor- able conditions. This species resembles young individuals of A. exilis^ with which it is often associated. It is likewise similar in many respects to A. lactijloreus (Johnston) Mcintosh, from which it differs widely in the armature of the proboscis and in many other anatomical features. Color. — Opaque white, sometimes with a pale reddish or yellowish tinge. This color is commonly uniform throughout, though it is some- what influenced by the internal organs which show through the body walls. The brain is pinkish, the intestine often brownish. Ocelli. — There are four irregular, but usually distinct groups of minute ocelli on the anterior portion of the head. Bordering each antero-lateral margin of the tip of the snout is an elongated cluster of about 8 to 12 ocelli (fig. 13). Posterior to these marginal clusters, 52 COE Fig. 13. Amphi- p o rti s leuciodus. Outline of anterior portion of the body showing brain and arrangement of the ocelli. X 12. and somewhat nearer the median line is a pair of clusters, each of which likewise contains 8 to 12 ocelli. These posterior groups lie immediately above the brain. Smaller and evi- dently younger individuals have but 4 to 6 eyes in each of the four groups. There is considerable variation in the size of the ocelli. Proboscis. — The proboscis sheath reaches nearly to the posterior end of the body. The proboscis is rather slender but ma}^ be contracted so that its di- ameter is equal to more than half that of the body itself. The proboscis is commonly attached to the proboscis sheath at a point situated from ^ to 54^ the distance towards the posterior end of the body. The armature is weaker than in A. exilis. The central stylet is moderately slender and acutely pointed. Its basis is somewhat conical in shape, contracted slightly toward its middle portion (p1. VII, fig. 6), and is rounded at its larger, posterior end. It is slightly longer than the stylet itself. The number of pouches of accessory stylets is commonly three, although there are sometimes only two, and occasionally a specimen is found which has four. There are usually two or three stylets in each pouch. In a few instances, however, four and five were observed. Where three pouches are present, as is usual, they are situated at nearly equal distances on the circumference of the proboscis (p1. vii, fig, 6). Cerebral sense orgatis. — Moderately small and situated well in front of brain and on ventral side of head. They communicate with the exterior by means of a pair of canals whkh open on the latero-ven- tral margins of the tip of the head. Nephridia. — The nephridia reach forward to the brain region. There are several pairs of efferent ducts, some of which open on the ventral, and some on the dorsal surface of the body. In one of the specimens sectioned the first pair of efferent ducts extended from the internal side of the lateral nerve cords and opened directly to the latero-ventral aspect of the body after passing on the ventral side of the nerve cords. A little farther back in the esophagal region were two efferent ducts on one side and one on the other which passed above, and externally to the nerve cords to open likewise below the lateral margins. In the remainder of the esophagal region were three more efferent ducts on each side. With one exception all of these passed above the lateral nerves and opened on the dorso-lateral surfaces of the ALASKA NEMERTEANS 53 body as in A. exilis. Another specimen had 7 efferent ducts on the left side and 8 on the right. Of those opening on the left side the four anterior ones passed dorsally to the nerve cord and then bent ven- trally to open on the ventro-lateral aspect of the body ; the fifth one opened very near the lateral margin, and the last two opened on the dorso-lateral surface. On the right side the four anterior ducts opened ventro-laterally, and the four posterior ones opened on the dorso-lateral surface. The nephridia extend backw^ard beyond the first few pairs of reproductive glands. Here, then, we find the connecting links be- tween the typical AmpJiiportis nephridium (which passes above and external to the lateral nerve and then bends downward to open on the ventro-lateral aspect of the body) , and the type of nephridium which is characteristic of A. exilis and the Heteronemerteans, and which opens directly on the dorso-lateral aspect of the body. Sub-tnuscular glands are closely packed together in front of the brain and in the brain region. They are not found farther posteriorly, and in this respect the species differs markedly from A. exilis. The intestinal ccecuni reaches forward well toward the anterior end of the esophagal region. The main caecal cavity, which lies directly beneath the esophagus, sends off numerous lateral pouches above the lateral nerves, and at its anterior end branches into lateral diver- ticula which extend forward on each side as far as the brain re- gion. Reproductive glands. — The genital products mature in June in the region of Victoria, B. C. The ova develop in sacs vvhich are regu- larly arranged, and extend from the posterior third of the esophagal region to the posterior end of the body. The ovaries, in all cases noticed, were situated immediately above the lateral nerves. In the intestinal region they alternate with the intestinal lobes with a great deal of regularity. Their efferent ducts occupy positions on the latero- dorsal aspects of the body exactly corresponding to those of the poste- rior efferent nephridial ducts. The ducts from the ovaries, however, pierced only the longitudinal muscular layer, and did not penetrate the circular muscular layer of the body wall. These rudimentary genital ducts are further distinguished from the nephridial ducts by lacking a conspicuous epithelial lining. Habitat. — These slender whitish worms were found in great abun- dance beneath barnacles and other growths on the piles of the wharf at Victoria, B. C. They were found less abundantly under stones be- tween tides at New Metlakahtla and in Glacier Bay, but were not noticed farther northwest. 54 COE i8. AMPHIPORUS EXILIS sp. nov. p1. Ill, fig. I ; p1. VII, fig. 5 ; pi. xi, fig. 3. Body extremely elongated for the genus, rounded throughout ; not capable of the great contraction which characterizes many species of the genus ; only moderately flattened ; posterior extremity slender. Head usually narrower than esophagal region. The general shape of the body resembles that of E?nplectonema. In shape of body, as well as in color and habits, this species, like the last, recalls A. lactifloreus (Johnston) Mcintosh. Its anatomical structures are, however, very differ- ent, as will be seen from the following description. Ocelli. — Exceedingly numerous and minute. They are arranged on the head in four elongated clusters (fig. 14)' Two of these clusters lie on each antero-lateral margin of the head, while the two other groups lie more posteriorly (just in front of the brain), and extend from near the middle line obliquely outward and backward. Sometimes the two posterior clusters are united in front into a continuous V-shaped group. The number and dis- tribution of these eyes is indicated by the following table, which shows the numbers found in ten individuals : Fig. 14. Amphi- forus exilis. Dor- sal view of head to show arrangement of ocelli. X 8. No. of ocelli in anterior clusters. No. in posterior clusters. Right. Left. Right. Left. I. 13 II 15 17 2. 16 17 26 28 3- 18 19 33 30 4- 23 23 32 31 5- 25 24 40 42 6. 25 26 52 46 7- 28 26 45 46 8. 35 37 54 45 9- 35 35 51 53 10. 60 56 71 73 In the specimens examined, therefore, the number of ocelli in the front clusters varied from 11 to 60, that in the posterior clusters from 15 to 73. The average in the 10 individuals is about 28 in each an- terior cluster, and 41 in each posterior group. All the ocelli are minute, but nevertheless very irregular in size, some being several times as large as others. From the ventral surface the anterior marginal clusters only are seen. ALASKA NEMERTEANS 55 Proboscis. — The proboscis sheath is long and slender. Even in this elongated species it reaches within a few millimeters of the posterior end of the body. The proboscis also is slender, though of moderately large size. It reaches well backward in the body. The armature of the? proboscis is especially remarkable. The central stylet is moderately slender, rather small, and rests on a moderately heavy basis. The basis is somewhat conical in form, and rounded posteriorly (p1. vii, fig. 5). In addition to the central stylet there are usually 8 pouches of ac- cessory stylets (p1. vii, fig. 5), though the number varies from 6 to 12. In each pouch are one or two slender stylets. Often there is ^ single fully developed stylet, and a second, immature stylet in most of the pouches. The proboscis is usually extruded when the animal is killed. Cerebral sense orgatis. — Situated far in front of brain — nearly at end of snout when the head is contracted — and fairly well developed. Their canals open on antero-lateral borders of tip of snout. The blood-vascular system resembles that in other species of the genus. Nephridia. — The nephridial system shows peculiar deviations from the arrangement usually found in the Metanemerteans. A pair of main canals with numerous branches runs longitudinally above the lateral nerve cords, as in other species. These reach forward welj toward the brain and extend posteriorly far into the intestinal region. Their branches ramify both above and below the lateral nerve cordsi The number and position of the efferent ducts is remarkable — there are commonly 20 or more on each side. The first is near the anterior end of the main nephridial canal, and sometimes opens on the ventro-lateral aspect of the body, as in other species of the genus. Back of this,- however, were counted nine other efferent ducts on each side in the esophagal region, and at least as many more were present on each side in the intestinal region. These ducts were mostly small and opened on the dorsal aspect of the body, as in many Heteronemerteans. The positions of the efferent ducts were sometimes immediately above the lateral nerves, and soinetimes but a little laterally from the proboscis, sheath. Most commonly, however, the ducts occupied positions be- tween these two extremes, so that the majority of the nephridlopores were situated on the dorsal surface about half way between the lateral margin and the median line (p1. xi, fig. 3). As noted on page 52, am approach to this condition is found in A. leuciodus. These appear tc> be the only species of the genus, and indeed the only Metanemerteans^ in which the nephridlopores are situated on the dorsal surface of the body. 56 COE The intestinal ccecum is enormously developed. Its diverticula reach forward on each side even to the anterior end of the brain. In the brain region each of the caecal diverticula appears as a rounded lobe on either side directly above, and closely approximating to, the dorsal brain-lobe. Back of the brain there are several rather slender lobes on each side. These lie mainly above the lateral nerves, but send off branches below the nerves at frequent intervals. Somewhat farther back in the esophagal region these lateral lobes join the main, un- paired caecum, which lies immediately below the esophagus. This caecum, throughout its course to the intestine proper, gives off nu- merous lateral diverticula on each side, and these branch upward above the lateral nerve cords (p1. xi, fig. 3). Sub-muscular glands. — These occur abundantly in the brain region, and are still more closely packed together in the anterior portion of the esophagal region. They occupy positions, as in other species, in the connective tissues beneath the musculature in the latero-ventral regions of the body. Each gland is composed of a number of cells, and each has a duct leading through the layers of the body wall to the exterior on the latero-ventral aspect. A much smaller number open on the dorsal surface. In the posterior end of the esophagal region these glands have almost entirely disappeared, although a few are met with in the anterior portion of the intestinal region. Color. — The color of the individuals of this species is commonly a homogeneous, opaque white, very pale flesh color, or pale yellowish- white. This color is continuous throughout the length of the body, both above and below, except where the internal organs show through. The smaller specimens are pale, while the larger ones almost always exhibit a brownish color, which indicates the position of the intestine. Sometimes minute reddish-brown specks are distributed over the dorsal surface. Occasionally a worm of this species is met with in which the intestinal lobes are pale orange. The brain is plainly distinguish- able in the living worm because of its pinkish coloration. Habitat. — Amphiporus exilis is one of the most common, as well as the most widely distributed species of nemerteans met with on the expedition. It occurred abundantly at nearly all the collecting stations from Victoria, B. C, to Dutch Harbor, Unalaska. The worms are restless and are often seen crawling over stones between tides. They live among barnacles, mussels, etc., from low water well up to high water mark, and are found abundantly under stones in almost all sorts of locations. The species is especially hardy. ALASKA NEMERTEANS 57 TETRASTEMMA Ehrenberg. Symbolae Physicae, Berlin, 1831, This genus includes a group of very small, slender worms, seldom more than 20 to 30 mm. long, with slightly flattened body, and usually with four well-developed ocelli, which form a quadrangle on the head. In a few species (cf. T. aberrans) these ocelli are each replaced by a group of two or three smaller ones, and in other species ocelli are wanting entirely. The anatomical structures are very similar to those of AmpJiiporus^ and the distinctions between the two genera are not clearly defined. The mouth and proboscis open together. The cere- bral sense organs lie close in front of the brain. The proboscis sheath extends to the posterior end of the body, and the proboscis is well de- veloped, armed with central stylet and pouches with accessory stylets, and usually provided with ten nerves. Only three species of the genus were met with on the expedition, although it seems probable that a number of other forms of these minute worms will be found later. 19. TETRASTEMMA BICOLOR sp. nov. p1. I, fig. 6. Body moderately slender, rounded both above and below; much larger and longer than most species of the genus, sometimes becoming 50 to 60 mm. in length in extension. Color. — This species is bright brownish-red or orange the whole length of the dorsal surface ; the whole ventral surface is pale gray or whitish. The anterior border and lateral margins of the head, as well as the lateral margins of the body for a short distance back of the head, have the same whitish color as the ventral surface. A narrow, median, white stripe, sharply marked off from the reddish color of the dorsal surface, extends from the white, anterior border of the head nearly to the posterior end of the body. Posteriorly the stripe becomes more irregular and is usually lost near the posterior extremity. Ocelli. — Four, rather large, rounded, arranged nearly in the form of a square. Proboscis. — Proboscis sheath and proboscis as in typical species of the genus. Proboscis provided with a moderately heavy central stylet about .075 mm. in length. Basis of central stylet somewhat conical in shape, swollen behind, and about ij^ times as long as the stylet it- self. There are two pouches of accessory stylets, with usually three or four stylets in each pouch. 58 COE The blood is dark red, and the blood vessels may be traced in the living worm the whole length of the body. Habitat. — The species was found only at Kadiak, where it was dredged in about three fathoms. It slightly resembles some varieties of T. vermiculus Quatrefages, but the longitudinal bands of dark pigment between the two ocelli of the same side are lacking, and the median white line is sharply demarkated, so that the two species are undoubtedly specifically distinct. 20. TETRASTEMMA ABERRANS sp. nov. This is a minute Nemertean, the specimens found not exceeding 12 mm. in length in greatest extension. Body moderately slender, slightly flattened. A pair of slight vertical slits on sides of head. Color. — Pale yellow throughout, both above and below. Ocelli. — Of moderate size, or rather small, arranged in four groups which form a rectangle, as do the single eyes of typical species of the genus. Each of the four groups is composed of three to five ocelli of variable size. The two anterior groups lie well toward the tip of the snout, while the two posterior groups lie above or slightly in front of the brain (fig. 15). The appearance of the eyes is such as to give at once an impression that the multiple nature of each group has arisen from the fragmentation of single ocelli. This I consider to be the case. At least one other species of Tetra- ste77ima ( T. cruciatjim Burger ) is known in which the four ocelli are double, and I have often noticed other species of the genus — notably the fresh water T. rjibrinn (Leidy) — which showed almost conclusively that one or more of the six or seven eyes present had been derived from a splitting of the primary ocelli. In one instance the fragmentation had been carried so far that no fewer than 30 to 30 pigment spots were present. Proboscis sheath afid proboscis as in other species of the genus. Mouth and proboscis open together ; proboscis sheath reaches the posterior end of the body. Pro- boscis provided with a rather slender central stylet and basis ; the two accessory stylet pouches each with two or three st)-lets of typical form. The proboscis possesses twelve nerves, and in this respect again shows a departure from the typical Tetrastemma, where there are usually but ten proboscidial nerves. Fig. 15. Tetrasiem- ma aberrans. Dorsal view of anterior por- tion of body, showing outline of brain and ar- rangement of the four groups of ocelli. X 25. ALASKA NEMERTEANS 59 Nephridia. — The nephridial canals are short, and reach forward to the brain. Anteriorly each nephridium lies above the lateral nerve, but farther back the branches ramify both above and below the nerve. Near the anterior end of each of the main canals a large efferent duct passes outside of the lateral nerve, and bends downward and outward to open to the exterior on the lateral margin of the body. In one in- stance a double efferent canal was observed. The head is provided with large cephalic glands which open on the tip of the snout. The cerebral sense organs are large. They lie mainly in front of the brain, although their posterior ends extend backward beside and lateral to the brain lobes. Each connects with the exterior by a canal which runs anteriorly to open on the lateral margin of the head. A broad intestinal ccecujn reaches into the anterior fourth of the esophagal region. It lies below the esophagus, and sends off a few wide lobes on each side, but these reach dorsally only a little above the lateral nerve. The esophagus opens into the caecum far behind the anterior sexual glands, and nearly as far back as the middle of the body. The reproductive pouches lie both above and below the intes- tine. As will be seen from the above description, this species agrees closely with the typical species of Tetrastemma in size, general appear- ance, and in the details of the internal anatomy. It differs from known species of the genus only in the fragmented nature of its eyes and in the number of nerves in the proboscis. It seems extremely probable, however, that when more of the described species have been examined in this regard, some of them will be found to contain more or less than ten proboscidial nerves. The eyes certainly resemble those of Tetrastemma more closely than they do those of any de- scribed species of Amphiporus. Habitat. — Found among hydroids in abovit four fathoms in Glacier Bay, and between tides at Orca, Prince William Sound. Not com- mon. 21. TETRASTEMMA C^CUM sp. nov. A small species which I shall refer provisionally to this genus was found by Ritter in considerable numbers at Kadiak. The species is especially remarkable, and quite aberrant from most other species of letrastemma.! both in lacking ocelli and in being hermaphroditic. The body is rounded and of almost even diameter throughout. The head has a pair of inconspicuous, oblique, lateral furrows. 6o COE Color, — The worms are very pale, whitish or pale yellowish in color, with dark intestinal lobes. Size. — Very small, not usually more than 5 to 10 mm. long and 0.5 to I mm. in diameter when sexually mature. Ocelli. — Wanting. Proboscis. — The proboscis sheath reaches nearly to the end of the body. The proboscis is remarkable for its enormous size as com- pared with the size of the body — when everted its diameter is practically equal to that of the body itself, although it is then comparatively short. Its armature consists of a central stylet with rather slender basis, and of two pouches of accessory stylets. The basis of the central stylet is slightly swollen and somewhat sharply truncated posteriorly. Each pouch contains 2 or 3 long, slender and delicate accessory stylets. In cross section of the proboscis the inner and outer circular muscu- lar layers appear as usual. The intervening layer of longitudinal mus- cles, however, is divided into two secondary layers separated by a thick sheet of nerves and connective tissue. The nerves appear to be more or less confluent, and not separated into a definite number of longitudi- nal cords as in most other species of Tetrastemma. This appearance may be partially due, however, to the action of the formalin in which the worms were preserved. Sense Organs. — The cerebral sense organs are very well developed, and unusually voluminous as compared with the other organs of the head. They lie in front of the brain, and extend posteriorly on the ventral side of the brain lobes as far as the ventral commissure. Each sense organ communicates with the exterior by a small canal passing obliquely forward to open on the lateral margin of the head. The brain is of small diameter, but its extent antero-posteriorly is comparatively great. Reproductive organs. — The individuals are hermaphroditic, and probably to some extent protandric although there is considerable varia- tion in this respect. One of the individuals sectioned was filled with ripe spermaries only, but all the others possessed enormous ova, with the spermaries disposed irregularly. The mature ova were fully two- thirds the diameter of the body, and hence were arranged at irregular intervals in a single row. Where the ova were mature the spermaries were smaller and contained much fewer spermatozoa than in those in- dividuals which were without large ova. Many of the spermaries had ducts which pierced the muscular layers to reach the dorso-lateral sur- faces of the body. In some cases where these ducts were fully formed, and the spermatozoa therefore mature, the ov^ in the same individual were but half grown. The sexual products were mature in July. ALASKA NEMERTEANS 6l T^NIOSOMA Stimpson. Tam'osoma STlMFSOH.'Froc. Acad. Nat. Sci.» Philadelphia, p. 162, 1857. Po/i'a Delle Chiaje, Mem. suUa storia e notomia degli anamaii senza vertebre del regno di Napoli, Naples, 1823-28. Eupolia HuBRECHT, Report of Challengei Exped. Z06I., xix, 1887. Eupolia Burger, Fauna u. Flora von Neapel, Monogr. 22, p. 598, 1895. For the reasons given on page 4, it seems absolutely necessary to adopt for this genus the name given by Stimpson in 1S57 rather than accept that of Hubrecht of 30 years later, even though most European writers have ignored Stimpson's brief, but careful, diagnoses. The species belonging to this genus show a remarkable specific vari- ation in the general shape and size of the body. Some are character- ized by extremely long, slender, flattened, and much twisted bodies, while others are short, thick, and cylindrical. In all the species, how- ever, the head in life is rounded in front and is sharply marked off from the parts immediately following by lateral constrictions. Hori- zontal furrows are w^anting, but small, oblique or transverse grooves may be present on the head. In strong contraction the esophagal region becomes greatly swollen, the head is drawn in (p1. ii, fig. 4), so that the anterior end of the body is large and shortly truncated. Proboscis sheath and proboscis short, seldom reaching more than one-third the length of body. Proboscis opening subterminal, minute. Mouth a small round opening on the ventral surface immediately be- hind the ganglia. Muscular layers of body composed of a thick outer longitudinal, a circular, and a less thickened inner longitudinal layer. Outside the muscular layers is a well developed cutis, composed of a thick inner layer of connective tissue, and an outer layer of glandular tissue. The external epithelium is thin, as compared with the other layers of the body, though the fibrous layer separating it from the cutis is well de- veloped. The musculature of the proboscis consists of an inner longi- tudinal, and an outer circular muscular layer. Consequently there can be no muscular crosses. The cephalic glands are enormously developed. They stretch back- ward on all sides beyond the brain, and even reach some distance into the esophagal region. The lateral nerves lie immediately outside the circular muscular layer. There are three longitudinal blood vessels. Ocelli are usually present in great numbers, though very small. The worms are sluggish in their habits, are unable to swim, and usually show great irregularities in the diameter of the body. They 62 COE are prone to twist themselves in sharp coils, or in knots, and often lie in lumps. They are usually capable of contracting and extending their bodies to a remarkable degree. 22. T^NIOSOMA PRINCEPS sp. nov. p1. II, figs. 3, 4. Body of very large size, long, thick, largest in the esophagal region, cylindrical in anterior portion, flattened on ventral surface posteriorly ; in contraction nearly cylindrical throughout. Head sharply marked off from body in extension, rounded in front, flattened dorso-ventrally ; in contraction drawn almost entirely into the parts immediately following, so that the anterior portion of the body is greatly swollen and sharply truncated in front. In contraction the anterior end of the body is thrown into massive folds, and the whole body is remarkably short and thick (pi. 11, fig. 4). A pair of inconspicuous, oblique grooves lies on the antero-ventral surfaces of the head ; into these the canals leading from the cerebral sense organs open. The esophagal region is scarcely more than one-twelfth the length of the body. In alcoholic specimens there is usually a median ridge on the dorsal surface run- ning the length of the body, except in the head and esophagal regions. Color. — The dorsal surface is deep ochre yellow, sometimes inclin- ing to orange, and sometimes to brownish, and thickly strewn with minute irregular dark red spots. The reddish markings are most con- spicuous near the anterior end of the body, and in the dorsal, median line. In many places a large number of the reddish dots become con- fluent, and form an irregular patch of deeper color. These patches commonly occur as broken longitudinal lines. Such lines are most abundant on the middle of the dorsal surface where they form a median longitudinal band of reddish-brown. The ventral surface is paler and the reddish markings are wanting. Along the median line the color is brighter yellow than elsewhere on the ventral surface. This is appar- ently due to the absence in this position of the opaque intestinal lobes. The ventral surface often exhibits a greenish tinge to the yellow ground color. The posterior extremity is pointed and much paler than the rest of the body. Size. — T. princeps grows to a size greater than has previously been described for any species of the genus. The individuals found were from half a meter to two meters in length when extended ; when contracted, but a small fraction of this length, and proportionately thick (p1. 11, fig. 4). After long standing in alcohol a section of the ALASKA NEMERTEANS 63 body of one specimen still measured 15 x 18 mm. It is one of the largest Nemerteans of the coast. Ocelli. — There are many minute ocelli arranged in an irregular group on each side of the tip of the head. The number of such ocelli is commonly 40 or more in each of the two groups. The mouth is a small rounded pore, and is situated several milli- meters back from the tip of the head in large individuals. The pro- boscis-pore is also minute, and is situated subterminally as usual. Proboscis. — The proboscis sheath reaches some distance into the esophagal region, but is very short vv^hen compared vv^ith the length of the body. The proboscis is short and vv^eak. Its muscular and epi- thelial layers are as in other species of the genus. The cephalic glands are enormously developed. They occupy a large proportion of the area in the anterior portion of the head, sur- round the brain on all sides, and extend still further backwards into the anterior end of the esophagal region. Here they lie in the outer longitudinal muscular layer around the whole circumference of the body. Body walls. — The outer longitudinal muscular layer about equals in thickness the other two muscular layers combined. In the intestinal region the inner longitudinal muscular layer becomes extremely thin on the lateral aspects of the body, and is much reduced dorsally. It is only on the ventral side that this layer retains its comparative thickness. The cutis is thinner than in most species of the genus, and especially is this true of its inner, fibrous layer. This layer is, throughout most of the body, reduced nearly to the condition of a thin membrane. It is commonly not much thicker than the muscular layer beneath the body epithelium. The epithelium itself is thin in comparison with the massive muscular layers of the body. The blood lacunce in the head lie directly above the brain, as in other species of the genus. They are, however, remarkably large, and are crossed in various directions by numerous bundles of muscular tissue, which tend to subdivide the lacunae into numerous smaller spaces. The longitudinal blood vessels are as usual. The dorsal vessel passes out of the proboscis sheath early in its course. Nephridia. — Situated in anterior and middle portions of esophagal region. Several efferent ducts on each side. These are small in diameter and pass above the nerve cords, opening on the lateral aspects of the body dorsal to the lateral margins. Cerebral sense organs. — The dorsal lobes of the brain greatly exceed the ventral lobes in size, and lie somewhat lateral as well as above them. The cerebral sense organs are voluminous. They extend for- 64 COE ward on each side, external and ventral to the dorsal brain lobes, nearly as far as the ventral commissure. Here, at the anterior extremity of each sense organ, a canal passes obliquely downward and outward to open into a shallow oblique furrow on the ventro-lateral aspect of the head. The sense organs are closely united with the posterior ends of the dorsal brain lobes. In the middle region of the brain, the anterior ends of sense organs are triangular in section, and lie external and between the dorsal and ventral ganglia. Farther back a glandular appendage of the sense organ pushes itself in between the internal faces of the brain lobes. This appendage fuses with the ventral portion of the sense organ more posteriorly. The brain lies deeply buried in the tissues of the head and nearly in the median line, but the lateral nerves while still in the region of the cephalic sense organs bend sharply outward, and occupy throughout the remainder of their course posi- tions immediately external to the circular muscular layer of the body wall. The genital products were nearly mature in July. The oviducts were in many instances preformed, and opened on the dorso-lateral aspects of the body. Habitat. — Only four individuals of this species came under my ob- servation. One was collected at Cape Fox (Kincaid), two at Yakutat, and the fourth at Orca in Prince William Sound. All were found under stones in rather hard mud at low water. The individuals contract strongly when handled, throwing the surface of the body into wrinkles, and often coil the posterior portion of the body into a close spiral, much as does Cephalothrlx. LINEUS Sowerby. The British Miscellany, London, p. 15, 1806, Representatives of this genus are characterized by a slender, some- times thread-like body, usually rounded throughout. The body is commonly twisted and coiled into an irregular mass. The movements are sluggish. The animals creep over objects and readily move about on the surface of the water, but they are unable to swim. The body is extremely contractile ; the head is often slightly wider than the body, of oval shape, and is usually provided with numerous minute ocelli, often arranged in a single row on each side of the head. A caudal papilla or cirrus, a diagonal muscular layer, and neurochord cells are all wanting. The proboscis sheath is often short in comparison with the length of the body. ALASKA NEMERTEANS 65 23. LINEUS VIRIDIS (Fabr.) Johnston. Planarta viridis O. Fabricius in O. F. Miiller, Zool. Dan. Prod., 1776 ; Fauna Groenlandica, p. 324, 1780. Planaria gesserensis Muller, Zool. Danica, 11, p. 32, 1788. Nemertes obscura Desor, Boston Journ. Nat. Hist., vi, pp. i to 12, 1848. Linens viridis Johnston, Catalogue British Non-parasitical Worms, pp. 27, 296, London, 1865. As stated by Verrill,^ there seems little doubt that the description of this species sent by Fabricius to Muller and published by him in the Zoologica Danica, is entitled to retain priority in nomenclature instead of 'hJlXxViOx''?, gesserensis of later date, which has been adopted by most recent European writers- Characteristic individuals of this species were found under stones at low water at New Metlakahtla, on Annette Island. Body moderately slender, rounded throughout, but slightly flattened posteriorly ; head slightly wider than the parts immediately following ; cephalic slits long and deep, with pale margins above and below, reaching anteriorly close to the proboscis pore. The anterior end of the mouth does not reach quite so far forward as the posterior end of the cephalic slits. Length usually 100 to 200 mm. On each side of the head in front of the brain and close to the lateral borders is a single row of minute ocelli (fig. 16). The number of these is commonly from four to six on each side, though some individuals have as many as eight, and very young specimens but a single pair. Color. — The Alaska specimens were dusky or brown- ish green, becoming dark brown anteriorly, and com- monly paler on the ventral surface, especially posteriorly. The head is very pale on lateral margins and in front. The brain is large, reddish, and shows distinctly through the pigment of the body. Cerebral sense or- gans paler but easily distinguished in life, with con- spicuous canals leading to the posterior ends of the of Linens viri- cephalic slits (fig. 16). ^« showing ar- Habitat.—Thh species, besides being found in Alas- '"angementof the 1 • . 1 1 1- -1 1 • 1 ^ , ocelh, and posi- ka, IS widely distributed in northern waters. On the ^.j^j^ ^^ brain east coast of America it occurs from Long Island Sound phalic sense or- to Greenland. It is found on nearly all the coasts of gans and mouth, northern Europe. It has also been found in the Medi- X^. 'Trans. Connecticut Acad., viii, p. 421, 1892. Proc. Wash. Acad. Sci., March, 1901. Fig. 16. Out- line of anterior- portion of body 66 coE terranean, though it is there comparatively rare and small. It is usu- ally found between tides under stones in muddy localities. 24. LINEUS TORQUATUS sp. nov. p1. V, figs. 8, 9. Body rather thick and stout for the genus, somewhat flattened throughout, but especially posteriorly and on the ventral surface. Head short, pointed in front, somewhat narrowed behind, slightly flat- tened. A slight annular constriction commonly marks off the head region from that immediately following. Sometimes this constriction is very conspicuous, and the head much narrower behind. Esophagal region rounded above, flattened below. Intestinal region commonly well flattened but without narrow margins. Posterior end slender. Cephalic furrows rather short. In alcohol or formalin they join the terminal proboscis pore in front, but in life they are separated from it. Ocelli. — Absent, at least in mature individuals. Mouth a minute pore or a large slit, according to state of contraction ; situated a little behind posterior end of cephalic furrows. Color. — The color is usually dark, reddish-brown, chocolate, or pur- ple above ; paler and commonly more reddish beneath. The dorsal surface is often flecked with irregular minute, inconspicuous whitish specks. A narrow transverse white band passes across the dorsal sur- face at the posterior ends of the cephalic furrows. This characteristic marking reaches only to the lateral edges, and is not seen from the ven- tral surface. The cephalic furrows are sometimes, but not always, bordered above and below by a narrow band of white. Furthermore a minute white spot occupies the region of the proboscis pore. The white borders of the cephalic furrows commonly connect this white spot with the white transverse dorsal band on the posterior portion of the head. On the extreme tip of the snout — in the white area around the proboscis pore — a pair of small pigment spots is sometimes pres- ent, one on each side of the proboscis pore. Size. — Length usually 200 to 400 mm. in extension, width about 5 mm. Proboscis. — The proboscis is moderately slender and of medium size. It is without color. The inner longitudinal muscular layer is almost entirely wanting ; the crosses between the circular layers are distinct, and the nervous plexus is exceptionally well developed. A single pair of large nerves enters the proboscis at its point of attach- ment at its anterior end. They originate from the ventral commissure of the brain near the ventral ganglia, enter the proboscis from the ven- ALASKA NEMERTEANS 67 tral side, pass backward for some distance on the right and left sides respectively, and later spread out into a cylindrical plexvis immediately internal to the muscular layer, and separated from the inner epithelium only by a few longitudinal muscular and connective tissue fibers. Glands. — The cephalic glands are very well developed, and occupy a large portion of the region of the head in front of the brain, both above and below the rhynchodaeum. They do not extend posteriorly quite so far as the brain. Nerves. — The nervous system is far more easily made out than in any of the related species with which I am acquainted. The individ- ual nerves are large and are sharply defined in all cases. The nerves extending from the brain toward the tip of the snout are numerous and are all of large size. The esophagal nerves are also surprisingly large and quite conspicuous. They have several transverse connecting branches after their origin from the ventral ganglia. The most pos- terior of these connecting branches occurs just in front of the mouth. In the mouth region they communicate in several instances with the lateral nerves by means of branches which pass through the nervous plexus outside the circular muscular layer. These branches from the lateral nerves follow the nervous plexus to the vicinity of the esophagal nerves, which they join by passing directly through the circular mus- cular layer. I do not know that such an anastomosis between the lateral nerve cords and the esophagal nerves has been previously noted in any species. The median dorsal nerve, situated just outside the circular muscular layer, is unusually conspicuous, and throughout a considerable portion of the intestinal region is supplemented by a second median nerve lying directly beneath the first, but in the midst of the internal longitudinal muscular layer. Branches connect these two nerves at frequent inter- vals. Cerebral sense organs. — Voluminous. The canals leading to the exterior open on the summit of a broad papilla situated at the posterior, widened end of each of the cephalic slits. JVephridia. — The nephridial canals are of much greater diameter than I have observed in any other Nemertean. The canal on either side is, throughout a portion of its length, equal to the lateral nerve cord in cross section. The nephridia extend through the anterior half of the esophagal region. The main tubule has a few very large branches, and these lie in the walls of the blood spaces about the esoph- agus. Anteriorly the branches lie mainly dorsal to the lateral nerves, but towards the posterior ends of the nephridia the branches 68 coE ramify more towards the ventral side of the esophagus. There is a sin- gle pair of efferent ducts which are of enormous size as compared with those of other species. These ducts are situated at about two-thirds the distance towards the posterior ends of the nephridia, and open on the dorso-lateral aspects of the body as usual. Habitat. — This species is common in mud and under stones in muddy localities at Orca and Virgin Bay in Prince William Sound, but was not met with elsewhere on the expedition. The individuals are hardy and of sluggish movements. They do not break up nor contract excessively when thrown into killing fluid, and the proboscis is not usually everted when the animal is killed. Some, especially the smaller ones, when preserved are nearly cylindrical, but most indi- viduals are flattened ventrally. The color is fairly permanent in for- malin, and even in alcohol for some months. MICRURA Ehrenberg. Symbolae Physicae, Berlin, 1831. This genus includes mostly moderately small, slender forms, gener- ally less rounded posteriorly, and of rather more active habits than Lineus. Its most marked distinction from the latter genus is that the posterior extremity of the body is provided with a slender, usually colorless, muscular caudal cirrus. This is formed of a continuation of the muscular tissues and integument beyond the posterior end of the alimentary canal. The species of Micrura are generally, though not always, more brightly colored and have more distinct markings than those of Lineus. The vast majority of the species are provided with numerous ocelli, though some are blind. The head is slender, and not distinctly separated from the rest of the body. The lateral faces of the body are not provided with thin edges as in Cerebratuhis^ the intestinal region is not so much flattened, neurochord cells are not present in those species which have been studied, and none of the species are able to swim as do all species of Cerebratulus. The mouth is usually smaller than in Cerebratulus^ and the intestinal lobes are not so deep. The proboscis is usually slender and comparatively weak ; the pro- boscis sheath is sometimes considerably shorter than the body. 25. MICRURA VERRILLI sp. nov. p1. v, figs. I, 2, 3. Body moderately elongated, widest anteriorly, tapering to an acute anterior extremity ; much more slender posteriorly. Ventral surface ALASKA NEMERTEANS 69 flattened ; dorsal surface rounded. Head narrow in front. Cephalic furrows long and deep ; at their posterior ends each is met by an ob- lique, shallow depression above and below. Proboscis-pore exactly terminal ; anterior ends of cephalic furrows well separated from pro- boscis pore. Mouth small, situated as far back as posterior ends of cephalic furrows. Caudal cirrus small, slender, easily broken off. Color. — This is one of the handsomest and most striking of all the described species of Nemerteans. The color of the dorsal surface is deep purple or wine-color ; that of the ventral surface is purest white. On the dorsal surface are usually 15 to 40 very sharp, pure white, transverse bands or lines connecting with the white color of the ven- tral surface. These transverse bands are nearly as narrow as pencil marks, and are situated at fairly regular intervals throughout the length of the body. They are sometimes more or less interrupted, but always sharp and distinct. On the dorsal surface of the tip of the snout is a small triangular marking, always very conspicuous because of its bright orange color. Following behind this is a narrow trans- verse white band, followed by broad purple and narrow white bands in succession. The cephalic furrows lie within the white color of the ventral surface, and are bordered above with a very narrow margin of white. They reach posteriorly as far as the second white band. After preservation in formalin or alcohol the worms are strongly rounded below as well as above, and the color of the dorsal surface changes from purple to red, while the orange spot on the tip of the snout disappears. Ocelli. — None were found. Proboscis. — Colorless, and shorter than in many species of the genus. Its microscopic structure shows distinctly the three muscular layers and the muscular crosses characteristic of the family. The inner circular muscular layer is very thin. The nervous plexus inside the circular layer is visually well developed. Nervous system. — The dorsal ganglion of the brain is divided poste- riorly into two distinct lobes, of which the smaller, dorsal lobe ends shortly, while the larger, ventral lobe continues into the cerebral sense organ. Each of these sense organs is of about the same size as one of the ventral ganglia, but considerably smaller than either dorsal ganglion. The duct lying on the external border of each of the pair of cerebral sense organs communicates, as usual, with the enlarged posterior end of the cephalic furrow by means of a wide duct opening directly outwards. The dorsal median nerve, lying just outside the circular muscular layer, is remarkably conspicuous throughout the whole length of the body. yo coE A section through the esophagal region shows that the outer longi- tudinal muscular layer of the body wall is particularly thick, and that the esophagus is unusually small. The other layers are as in most species of the genus. The lateral blood lacunas break up in the esophagal region into numerous thin- walled vessels, or spaces, which surround the lateral and ventral walls of the esophagus. Nephridia. — The nephridia extend through the anterior ^ of the esophagal region, as a single profusely branched tubule on each side. All the branches of the main canal are small, and lie in close connec- tion with the walls of the blood spaces about the esophagus. The efferent ducts are very numerous, but minute. They open on the dorso-lateral aspects of the body, usually not far above the lateral mar- gins. In a single instance one of the efferent ducts was found to open beneath the lateral margin, but this must be looked upon as ab- normal. In several instances two efferent ducts lay close together on the same side, but in such cases one originated much nearer the ven- tral side of the esophagus than did the other. The actual number of efferent ducts counted in one medium-sized individual was 17 on one side, and 24 on the other. Reproductive organs. — The pouches containing the sexual products when mature become so voluminous as to occupy more than half the entire space within the body walls. In July, when the genital prod- ucts are fully ripe, the ducts leading to the exterior are completely formed some little time before the elements are discharged. Each pouch has a single duct opening into a funnel-shaped depression through the epithelium on the dorso-lateral aspect of the body. The opening into the cavity of the ovary is on the surface of a broad papilla formed of long columnar cells, a portion of which bend inward to guard the opening. The ducts often have a somewhat tortuous course, and are likely to broaden out considerably in passing through the circular mus- cular layer. Size. — The length of the largest individual observed was about 300 mm., and its width 6 mm. The species is named in honor of Prof. A. E. Verrill, of Yale University, who, more than any one else, has helped to bring the American species of Nemerteans into orderly arrangement. Stimpson ^ briefly describes from Bering Strait a species of Cere- bratulus ( C ifnpressus = Alicrura impressa) which bears a superficial resemblance to the above. Stimpson's species, however, was flattened, 'Proc. Philadelphia Acad. Nat. Sci., p. 160, 1857. ALASKA NEMERTEANS 7I of a dusky gray color above, with narrow, colorless, transverse lines, and with a flesh-colored subtruncate head, much narrower than the body. The same author describes a somewhat similar species ( C bellus = Alicrura bella) from Yezo Island, Japan. This had 10 bluish- white, narrow transverse lines across the ashy-gray dorsal surface, and a white ventral surface. The head was short, and of a vermilion color. Both these species should be referred to the genus Micrura as here defined. Habitat. — This species was found only at Virgin Bay, in Prince William Sound. Here it was not uncommon under stones at low water, and was frequently met with in the parchment like tubes of Carinella captstrata^ with which it was associated. 26. MICRURA ALASKENSIS sp. nov. pi. IV, fig. 2 ; p1. XIII, fig. I. Body long and slender, rounded in esophagal region, flattened throughout the whole intestinal region. Head remarkably slender, elongated, and sharply pointed ; cephalic furrows correspondingly long, but their anterior ends do not reach the proboscis pore. Mouth small, and well back from tip of snout ; its anterior end reaches about as far forward as posterior ends of cephalic furrows. No ocelli are present. The brain is reddish in color, and shows conspicuously through the tissues external to it. The esophagal region is well rounded, and narrower than the suc- ceeding portion of the body. The intestinal region is much flattened both above and below ; its lateral margins are rounded, however. After preservation in alcohol the intestinal region is flattened or even hollowed ventrally, while the dorsal surface is very convex. Posteri- orly the body tapers gradually, and at its pointed extremity an unusu- ally long caudal cirrus is present. This is quite colorless, and contracts after preservation to but a fraction of its original size and length. Color. — Two color varieties were met with. Most commonly the general color was a salmon or flesh-color. The esophagal region was pale salmon with tinges of brighter red, becoming lighter anteriorly ; the head pale or nearly colorless ; the brain region distinctly red ; the intestinal region pale salmon, with much more deeply colored intestinal lobes. Running the whole length of the ventral side of the body — from near the mouth to the caudal cirrus — is a characteristic, narrow, cream or flesh-colored stripe in the median line. This stripe is con- spicuous only in the intestinal region, though it may be traced forward to the mouth, as stated. In alcoholic specimens it can still be detected 72 COE in the intestinal region, though the natural color of the body has mostly disappeared. A similar, though much less conspicuously marked, me- dian stripe occurs on the dorsal surface. The second color variety had chestnut brown intestinal lobes, brown- ish esophagal region, slightly paler below ; snout and margins of head colorless ; brain red. The paler, ventral, median stripe was even more conspicuous than in the other variety. Serial sections show that, while the cephalic furrows are unusually long, yet they are not really as deep as in many related species. The brain is very large ; the posterior end of each dorsal ganglion is bi- lobed, the dorsal lobe ending freely, while the ventral lobe continues directly into the cerebral sense organ. The canals from the sense organs open into the very posterior ends of the cephalic furrows. The buccal, or esophagal, nerves are larger than in most species. Accessory buccal glands. — On each side of the mouth, and extend- ing a short distance into the esophagal region, is a series of peculiar glands — accessory buccal glands, they may be called. These glands are similar in their nature to, and apparently supplement, the ordinary buccal glands which line the mouth cavity. In the present instance, however, these accessoiy glands lie imbedded in the outer longitudinal muscular layer ventral to the lateral nerves. Here they greatly en- croach upon the domain of the muscles, and occupy a large portion of the space between the circular muscular layer and the cutis (p1. xiii, fig. i). The gland cells are large, and are distended with a clear, granular secretion. These accessory glands appear to have originated from ordinary buccal glands which have passed outward and taken up a position outside the two inner muscular layers (p1. xiii, fig. i). They are arranged in clusters, and discharge their contents by irregular ducts leading through the two inner muscular layers to the epithelium of the buccal cavity and adjacent esophagal wall. A short distance back of the mouth the two lateral series of these accessory buccal glands unite beneath the esophagus, and are not found further poste- riorly. The ordinary buccal glands are present as in related species. Alimentary canal. — The esophagus is large in comparison with the thickness of the body wall. The histological difference between the epithelium lining its anterior portion and that of its posterior half is much more marked than in most related species. The delicate layer of circular and longitudinal muscular fibers which surrounds the epi- thelial lining of the esophagus in most of the Heteronemerteans be- comes remarkably developed in this species. At the very posterior end of the esophagus — just anterior to the first intestinal pouches — ALASKA NEMERTEANS 73 the circular muscles of the esophagus increase so greatly in number that they form a most conspicuous layer. In the region of its maximum development this layer becomes nearly half as thick as the circular layer of the body walls in the same section. In no other species of the Lineidce has this muscle been found of even approximately this thickness. Its fibei-s connect in part v^ith the circular layer of the body walls, and to a lesser degree with the circular muscles of the proboscis sheath. But few fibers lie on the dorsal wall of the esophagus, so that this organ is largely bound up with the proboscis sheath in a con- tinuous layer of muscles, and one cannot fail to see the striking resem- blance between this circular layer and the inner circular muscles that are so highly developed in precisely the same region in Carinoma (p. 22). Bcfdy "Walls. — The external longitudinal muscular layer of the body walls is especially weak when compared with the same layer in related species. This is partly shown by the fact that the cutis glands extend Y^ or more of the distance from the exterior to the circular muscular layer. Nearer the intestinal region the muscular layers are thicker, and the esophagus occupies correspondingly less space. The three longitudinal blood vessels are very conspicuous through- out their length. The dorsal vessel leaves the proboscis sheath near the posterior ends of the nephridia, or at about ^ the distance towards the posterior end of the esophagal region. Nephridia. — The nephridial system consists of a pair of unusually • large, longitudinal canals, which lie in the dorsal walls of the lateral blood lacunae beside the esophagus. The nephridial canals send off very few branches, except near their anterior ends, where they divide into smaller branches. The main canals extend through about the middle third of the esophagal region. Each of the pair of longitudinal canals terminates posteriorly in a single, remarkably large efferent duct which opens on the dorso-lateral aspect of the body. The ducts sometimes lie exactly opposite, but in other specimens one lies some distance farther back than the other. In such cases, of course, one of the nephridia extends a corresponding distance farther posteriorly than the other. Each of the efferent ducts spreads out as it passes through the circular muscular layer into a broad sieve-like or filter-like struc- ture with scores of small, nucleated cells. From this point a straight and comparatively narrow duct leads directly to the surface. Reproductive glands. — The sexual elements are fully mature in the month of June, and the genital ducts at this time are fully formed. In the females each duct communicates directly with the cavity of the ovary by a funnel-shaped opening, and a similar funnel-shaped open- 74 COE ing lies at the outer end of the oviduct on the dorso-lateral aspect of the body. The bodies of many of these worms were so distended with sexual products that they were very easily ruptured and could conse- quently be preserved intact only with great care. Size. — The length of this species is commonly about 150 mm. in extension, although several individuals were found which were more than 300 mm. long. Habitat. — The species was found under stones between tides In rather muddy localities at New Metlakahtla on Annette Island, at Glacier Bay, Sitka, Yakutat, and at Orca and Virgin Bay in Prince William Sound. At the four last-named localities the worms were abundant. Nearly 50 individuals, some of them nearly 300 mm. long, w^ere found at Sitka massed together in a single cavity in coarse gravel mixed with mud. All were filled with fully mature sexual products, and the bodies of nearly all were in contact in a tangled mass. CEREBRATULUS Renier. Prospetto della Classe dei Vermi (t. Burger), 1804. The species of this genus are distinguished by long, flattened bodies, the lateral margins of which are thin, adapted for swimming. Most species are very active, swim readily with undulatory motion, can roll up spirally and become twisted, but are only moderately conti'actile in length, and do not draw together into a tangled mass. The dorso- ventral musculature is highly developed, as are likewise the longi- tudinal and oblique muscles. Head usually pointed anteriorly, but very changeable in shape ; lateral slits long and deep ; proboscis pore terminal ; mouth large, and situated behind the ganglia ; esophagal region mostly rounded ; intes- tinal region broad and flat with thin lateral margins ; the posterior end extremely flattened and provided with a delicate caudal cirrus, which extends beyond the opening of the intestine, and in most species is easily broken off and lost. Eyes usually wanting ; body commonly of a nearly homogeneous color without distinct markings (such as longitudinal and circular bands and rings) . Proboscis sheath reaches to posterior end of body ; proboscis very long and strong. Intestinal pouches deep and mostly forked peripher- ally ; central intestinal canal narrow. Neurochord cells probably com- monly present in brain and lateral nerve cords, though they have as yet been found in but few species. ALASKA NEMERTEANS 75 27. CEREBRATULUS HERCULEUS sp. nov. pl. 1, fig. 5. Body very large, stout, thick, broad, attaining a length of 2 meters or more, and a breadth of more than 25 mm. ; remarkably broad when contracted, the body somewhat resembling that of a leech. One speci- men, preserved in alcohol and strongly contracted, now measures 300 mm. in length, 25 mm. in width in intestinal region; 18 mm, in width and 15 mm. in thickness in esophagal region. The length of the esophagal region in this specimen is only about 55 mm. after preser- vation. Head very short, thick, and bluntly pointed. Cephalic slits short, separated in front, reaching back in the alcoholic specimeii but 7 mm. Mouth large, situated as far back as the posterior end of the cephalic furrows. Esophagal region short and thick ; intestinal region very broad and flat, with thin, wavy margins in life. Posterior extremity provided with a pale caudal cirrus of comparatively small size. Proboscis large, colorless, fully equal in size to that of a large specimen of C. marginatiis. No ocelli. Color. — Color very dark brown or reddish brown throughout the whole dorsal surface, rather paler and less bright ventrally. This gigantic Nemertean is not clumsy in its movements, but is active, and swims rapidly and gracefully. It was met with only at Sitka, where it occurred in considerable numbers in mud at low water mark, associated with C. jyiarginatiis. The worms are fragile, and break spontaneously unless carefully handled. 28. CEREBRATULUS MARGINATUS Renier. Cerebratidus margmatus Renier, Prospetto della Classe del Vermi (t. Burger), 1804. C. angidatus McIntosh, British Annelids ; Pt. i, Nemerteans, p. 195, Ray Society, 1872-73. C _/"«^«^^ Verrill, Trans. Connecticut Acad., viii, p. 438, 1892. This large and active Nemertean was found in several localities about Sitka, but not in great numbers. The individuals there found possess the typical color of the species, with which they agree exter- nally in every detail except the shape of the body. All the Alaska specimens are much shorter and comparatively broader than those I have seen in Naples, although careful study of microscopic sections revealed no essential anatomical differences. It is therefore probable that this is but a local peculiarity of a single widely distributed species. 76 coE The worms were found near low water mark living in soft black mud beneath a considerable growth of 'eel grass.' The mud contained a great quantity of decomposed vegetable matter, and was saturated with sulphuretted hydrogen. The worms are excellent swimmers, and are very rapid in their movements in their undei'ground burrows. The specimens obtained measured up to 500 mm. or more in length, and about 15 mm. in width. The color above was slaty-brown, dark gray, or greenish-gray, with white or colorless margins. The species has been previously recorded from the Mediterranean, the coasts of Great Britain, Madeira, the northeastern coast of Amer- ica, Greenland, and from other localities. 29. CEREBRATULUS OCCIDENTALIS sp. nov. rl. VI, fig. 3. Body 300 mm. or more in length in moderate extension ; rather slen- der, rounded in front, flattened behind, and with very thin margins in the intestinal region, as in other species of the genus. Head change- able in shape, either rounded or acutely pointed, according to state of contraction. Cephalic furrows rather short. Color. — Individuals vary considerably in the general color of body, but are most commonly chestnut brown or dull reddish anteriorly, and light chocolate brown in the intestinal region. The ventral surface is brownish flesh-colored, with a median, ochre ventral stripe. Some- times the ventral surface is nearly chocolate throughout its entire length. A darker median dorsal stripe is indicated. Proboscis. — Remarkably small and slender, being many times smaller than in most related species of equal size. It is colorless, and is usually everted when the animal is killed. In internal anatomy but few points need special mention. The cephalic glands are unusually well developed, and continue backward as the cutis glands. The brain is remarkably voluminous, the dorsal ganglion bilobed, the lower lobe continuing into the cerebral sense organ. The mouth is very large, and is provided with an unusual abundance of buccal glands. There are many diagonal fibers between the pro- boscis sheath and the body musculature. NepJiridia. — The nephridia are of moderate length, and occupy the middle third of the esophagal region. The main tubules lie in the angles between the esophagus and the proboscis sheath. They are profusely branched towards their anterior ends, each branch lying in ALASKA NEMERTEANS 77 the wall of one of the esophagal blood lacunee. Farther back the branches unite into a single tubule on each side. Their main canal continues backward for a considerable distance in the wall of a lateral blood lacuna, and is without branches. At its posterior extremity the efferent duct bends to the dorso-lateral surface of the body, as usual. The sexual products are fully mature in July. Habitat. — This is a very active species. It was found in abundance at Wrangell, Yakutat, Orca, and Virgin Bay. It inhabits the shore at half tide and below, in muddy places and under stones. The small size of the proboscis will distinguish it from related species. 30. CEREBRATULUS LONGICEPS sp. nov. p1. V, figs. 4, 5, 6, 7 . Body much flattened throughout its whole length ; anterior portion remarkably narrow and slender, becoming wider posteriorly. Head much narrower, more slender, and longer than in most species of the genus, acutely pointed in front, much flattened dorso-ventrally, and with the tip of the snout often slightly curved upward. A section through the head is often concave both above and below, showing that the head is thicker laterally than in the median line. The head is directly con- tinuous with succeeding portions of the body. Frontal sense organs very highly developed. Cephalic furrows very long, and remarkably deep and wide. An- teriorly they do not reach quite to tip of snout. They are, conse- quently, well separated from the proboscis pore, which is situated sub- terminally. The mouth is situated as far back as the posterior end of the cephalic furrows. From the narrow, pointed head the esophagal region gradually widens as it passes backward, but it remains unusually flat throughout ; the intestinal region is not sharply marked off from the esophagal region, but widens gradually toward the posterior third of the body, and narrows toward the posterior extremity. The intestinal region is even flatter than the more anterior portion of the body. The caudal cirrus was not observed. Proboscis. — The proboscis sheath is reduced to a frail tubule in the posterior third of the intestinal region. The proboscis is slender and colorless ; it has the three muscular layers and the muscular crosses, as usual in the genus. Color. — Dorsal surface dark brownish-black or purplish, much paler on tip of snout, and on borders of cephalic furrows. This paler border is wider on the ventral than on the dorsal borders of the furrows. It 78 coE is sometimes so much increased that it covers the whole ventral surface in the region of the mouth, and gradually becomes darker tow^ard the tip of the snout, as well as posteriorly. The color of the ventral surface is similar to that of the dorsal surface, but is commonly slightly paler, especially anteriorly, and has a grayish tinge. No eyes were found. Size. — Length of largest specimens collected about 300 mm. ; width in intestinal region 6 mm. The body is fragile, and the specimens are often broken in killing. After preservation in formalin or alcohol the body tapers gradually toward the narrow head, is widest in the posterior third or near the posterior end, and greatly flattened throughout. The head retains its long, pointed appearance, the tip is recurved, and the cephalic furrows in most specimens are deep and widely open. Frontal sense organs. — On the exact tip of the head are three rather deep and wide pits, easily overlooked in the entire animal, but very conspicuous in sections. These are undoubtedly sensory in their nature, and are lined with slender rod-like cells with especially large cilia. Burger has described in detail such sense organs in Micrura and Cerebratuhis, and somewhat similar ones in other genera. These ' frontal organs,' as they are called, lie above the proboscis pore ; one of them is situated in the median line and the other two are placed symmetrically on the antero-lateral margins. The brain is remarkably large, and the dorsal ganglia are much larger than the ventral. The posterior ends of the long lateral furrows are greatly expanded. Cerebral sense organs. — These also are very voluminous and are continuous with the posterior ends of the dorsal ganglia. The canals leading to the exterior are large, and open into the posterior ends of the cephalic furrows. Internally each canal passes directly beneath the dorsal ganglion to its internal ventral border, and then bends dorso- laterally to the external border of the sense organ. These canals leave the cephalic furrows far back of the cerebral commissure, and at about the point where the ventral ganglia merge into the lateral cords. Nepkridia. — The nephridial system presents remarkable deviations from the type usually found in the genus. The nephridial canals ex- tend throughout the whole length of the esophagal region, and com- municate with the exterior by upwards of sixty efferent ducts on each side. In the region of the mouth, or directly behind it, are one or two nephridial tubules on each side, quite independent of the rest of the system. Each of these tubules consists of a coil of fine canals lying ALASKA NEMERTEANS 79 on the dorsal side of the lateral blood lacunae, and projecting freely into the cavity of the lacuna. From each coiled tubule an efferent duct leads directly to the dorsal surface of the body. Back of these anterior, isolated nephridia a continuous richly branched and much coiled canal extends posteriorly on each side as far as the end of the esophagal region. The branches of these canals are limited to the dorsal and lateral surfaces of the lateral blood spaces, which occupy the angles between the esophagus and the proboscis sheath. The coiled tubules project freely into the blood spaces, and encroach con- siderably upon their area. The very numerous efferent ducts, which are given off from these tubules, pass directly outwards to the surface of the body. Those which pass out from the most lateral of the ne- phridial tubules, open on the dorsal surface near the lateral margins of the body, while those which leave the tubules nearest to the proboscis sheath open on the dorsal surface not far from the median line. The greater portion of the nephridiopores, however, lie rather nearer to the lateral margins than to the median dorsal line. Although there are practically the same number of efferent ducts on each side, this does not signify that these ducts are paired, but rather that the average number on each side is identical. In several instances an unusually large efferent duct on one side was accompanied by one of similar size nearly opposite. These ducts vary greatly in size, some being several times as large as others. Great irregularity likewise exists as to their distribution along the course of the nephridial canal. In the anterior third of the esophagal region they are well separated, but more posteriorly, portions of two or three sometimes appear on the same side in a single section. Sexual glands. — The reproductive glands appear immediately be- hind the nephridia, and in both sexes alternate with the intestinal pouches. The sexual products were fully mature in July, and in both sexes the genital ducts were fully formed. They were lined with a special flattened epithelium, and opened on the dorso-lateral aspects of the body in both sexes. The ova when immature are attached by a narrow stalk to the wall of the ovary, and later break off and fall into the ovarian cavity. The spermatozoa have short, oval heads instead of the slender, pointed ones so common in the genus. Habitat. — Yakutat ; under stones at low water ; not common. 8o COE 31. CEREBRATULUS MONTGOMERYI sp. nov. p1. VI, figs. I and 2. Body large, very long and ribbon-like when fully grown, and much flattened, except in esophagal region. Head variable in shape, ac- cording to state of contraction ; sometimes rounded and obtuse, at other times much elongated, pear-shaped, and flattened dorso-ventrally. The anterior portion of the body, back as far as the intestinal region, is narrower and thicker than the posterior portions, and has rounded margins ; in the intestinal region the body is very flat, and the lateral margins are extended to very thin edges. In partial contraction the dorso-ventral muscles, situated a little distance from the oviter edge of the margins, contract so strongly as to produce a lateral ridge on each side both above and below the lateral edge. A transverse section con- sequently shows that the lateral margin is thicker distally than it is nearer the median line. These lateral ridges are often seen in speci- mens preserved in alcohol or formalin. Posteriorly the body becomes still thinner, and is narrower toward the extremity. The posterior end is either obtuse or sharply pointed, according to the state of contrac- tion. The posterior opening of the intestine is subterminal. In none of the many specimens obtained was the caudal cirrus present, though such an appendage is probably present in uninjured worms. The cephalic slits are moderately elongated, and extend backward as far as the anterior end of the mouth. Their posterior ends are wide and deep, and in life their margins are thin and widely separated. Anteriorly they do not reach quite to the proboscis pore, except when the animal is strongly contracted. Color. — In life the whole body, both above and below, except the tip of the head, is bright blood red. The anterior extremity is tipped with a narrow band of white or yellowish-white. This white tip ex- tends both above and below, and is not usually more than a few milli- meters wide. The proboscis is light red in color. Size. — Individuals were most commonly from one to two meters in length, and 8 to 10 mm. in width in the intestinal region. A few of the specimens obtained measured as much as two and a half meters when extended. The individuals are generally hardy, and are not so prone to break spontaneously into fragments as are those of many other species of the genus. They contract much less violently than most other Nemerteans when killed, and may consequently be easily preserved entire by kill- ing in a dilute solution of formalin in sea water. ALASKA NEMERTEANS 8l Proboscis. — The proboscis is pale red, and of moderate size for the genus. Its musculature consists of an inner circular, a longitudinal, and a very thin outer circular muscular layer. It is, therefore, differ- ent from those of nearly all the species of the family Lineidce.^ in that the inner longitudinal muscular layer is wanting. There are fibers passing between the inner circular layer and the thin outer circular layer, but these fibers do not form such distinct crosses as are char- acteristic of most of the members of the family. The internal epi- thelium is thick and highly glandular. The nerve plexus beneath this layer is unusually conspicuous, and lies directly internal to the circular muscular layer. The proboscis is very often retained in place after the animal has been killed. The muscular layers of the proboscis sheath are rather thick, and the circular muscular fibers often cross into the circular muscles of the body in the median line. In the anterior portion of the head a rich growth of glands pene- trates the other tissue nearly to the central proboscis sheath. These glands mostly open directly outward on the whole circumference of the head, although a few open on the tip of the snout. Back of the lateral slits the glands are restricted to the cutis. In the region of the mouth the cutis glands are separated from the outer epithelium hy a layer of interlaced fibers of connective tissue, forming a basement layer of double the thickness of the epithelium. In the intestinal region the cutis glands are much reduced, and scattered. The outer muscular layer of the body is about as thick as the two inner muscular layers combined. The mouth is much elongated, and its anterior end reaches forward as far as the posterior ends of the cephalic slits. The intestinal pouches are deep and narrow, and are forked distally. Nephridia. — The nephridial canals are profusely branched, and lie in contact with the blood spaces around the esophagus in front of the middle esophagal region. Their extent longitudinally, however, is short. The main nephridial canals lie in the angles between the esophagus and the proboscis. Near their posterior extremities a large efferent duct passes obliquely upward on each side and opens on the latero-dorsal aspect of the body. As described by Biirger^ in C. marglnatus., one of the efferent ducts often lies far behind the other. Posterior to the efferent ducts the nephridial canals are smaller, and their branches end a short distance farther back. The blood lacunze in the head in the specimens sectioned were very much reduced in size. 'Fauna u. Flora Neapel, Monogr. 22, p. 622. Proc. Wash. Acad. Sci., March 1901. 82 COE The brain lobes are large, and the ventral commissure enormously thick. The well developed cerebral sense organs abut closely against the posterior ends of the dorsal ganglia. Their ciliated canals pass obliquely inward from the posterior ends of the cephalic slits. In their course these canals pass external and ventral to the dorsal ganglia. The median dorsal nerve, lying just outside the circular muscular layer of the body, is large and conspicuous throughout nearly the whole length of tlie animal. Ocelli are wanting in the adult worm. In specimens collected in June and July the genital products had evidently been recently discharged. This species is named in honor of Dr. T. H. Montgomery, Jr., of the University of Pennsylvania, whose studies on the Nemerteans form most valuable contributions to the knowledge of the group. Habitat. — This magnificent Nemertean was found abundantly under stones in muddy places near low water mark at most of the collecting stations between Sitka and Unalaska. At Orca and Virgin Bay, in Prince William Sound, and at Dutch Harbor, Unalaska, it proved to be one of the commonest species. Professor Kincaid has sent me a large specimen from Puget Sound, in the State of Washington, where • it is said to be not uncommon. This would indicate that the species may be found locally along the whole northwestern coast of North America south of Bering Sea. 32. CEREBRATULUS ALBIFRONS sp. nov. p1. IV, figs. 3, 4. Body elongated, ribbon-like, flattened behind, rounded in front as in typical species of the genus. Margins of intestinal region pale and thin. Cephalic slits unusually long and deep, reaching well beyond posterior end of mouth. Color. — General color of body brownish purple. Anterior end of head white, including both dorsal and ventral surfaces, and extending backward about as far as anterior end of mouth, and sometimes reach- ing along borders of cephalic slits to their ends. The esophagal re- gion is dark smoky purple on dorsal surface ; the^ ventral surface is similar but paler ; the intestinal region inclines more to reddish. A . darker line runs along the middle of the dorsal surface and the in- testinal lobes appear more opaque. Habitat. — Only a single specimen of this pretty species was se- cured, and this, unfortunately, had its posterior extremity missing. The specimen was about 150 mm. in length and of moderate proper- ALASKA NEMERTEANS 83 tions. It was restless in confinement, and an active swimmer. It was found under a stone near low water mark at Hot Springs, near Sitka. EXPLANATION OF PLATES. The colored plates (I to VI) are reduced from colored sketches made, with a few exceptions, from the living animal. They were com- pleted after the return of the expedition and have been retouched, and in some instances entirely redrawn, by Mr. A. H. Verrill. Every effort has been made to make the colors and the form of the body as natural as possible. In the figures on the plates the ap, attachment of proboscis. bg, buccal glands. bg' , accessory buccal glands. bl, blood lacuna. ble, epithelium of same. bm, basement layer. br, brain. bv, blood vessel. bva, anastomosis of lateral v^essels. cc, ciliated canal of cerebral sense or- gan. cgl, cephalic glands. c;w, circular muscular layer. cso, cerebral sense organ. ct, connective tissue. cugl, cutis glands. dc, dorsal commissure of brain. dg, dorsal ganglion. dgl, secretion of cephalic glands. dn^ median dorsal nerve. e, esophagus. eep^ epithelium of same. f, fibrous layer of cutis. gc, glandular cells of cerebral sense organ. gl, integumental glands. gp, genital pouch. /, integument. ic, intestinal caecum. ictn, inner circular muscular layer. following reference letters are used ijl, inner fibrous layer. ilm. inner longitudinal muscles. in, intestine. Im, longitudinal muscles. /», lateral nerve-cord. m, mouth. mef, epithelium of same. «c, nerve commissure. nd, efferent nephridial duct. nep, nephridial canal. np, nerve plexus. nv, nerve. oc, ocellus. ocm, outer circular muscles. oep, outer epithelium of proboscis. olm, outer longitudinal muscles. otf, ova. pcm, circular muscles of proboscis. plm, longitudinal muscles of proboscis. pn, proboscis nerve. ps, proboscis. psk, proboscis sheath or its cavity. rk, rhynchodaeum. ro, opening of same. svig, submuscular glands. sn, nerve to cerebral sense organ. sop, opening of ciliated canal of sense organ. vc, ventral commissure of brain. vg, ventral ganglion. 84 COE INDEX TO GENERA AND SPECIES. New genera and species are in black face type ; synonyms are in italics ; pages on which generic or specific decriptions occur are in black face type. Amphiporus 40, 9, 28, 32, 33, 34 angulatus 41, 3, 6, 9, 36 bimaculatus 44, 6, 9, 31 exilis 54, 6, 9, 51, 52, 53 lactifloreus 51, 54 leuciodus 5". 6, 9, 31, 55 nebulosus 48, 6, 9 neesii 4 tigrinus 46, 6, 9 virescens 28 Borlasia camillea 4 quinqiielineata 4 Carinella 11, 7 annulata, 13, 17 capistrata 16, 5, S, 71 dinema 15, 5, 8, 17 nothus 17 polymorpha 12 speciosa 11, 5, 7 superba 15, 16, 17 Carinoma 20, 8, 73 armandi 20, 21, 22 griffini 20, 5, 8 patagonica 21, 22, 23 tremaphoros 20 Cephalothrix 19, 8 linearis 19, 5, 8 Cerebratulus 74, 10, 68 albifrons 82, 6, 11 angulatus 75 bellus 71 fiiscus 75 herculeus 75, 6, 10 imprcssus 70, 3 longiceps 77, 6, 11 marginatus 75, 6, 10 montgomeryi 80, 6, 1 1 occidentalis 76, 6, 10 Cosmoccphala heringiana 41, 3, 42 Emplectonema 23, 4, 8, 28, 32, 54 biirgeri 25, 5, 8 camillea 4 gracile 23, 3, 5, 8 Emplectonema viride 23, 3, 4, 25 Eunemertes 23, 3 gracilis 23 tieesii 4 Eu folia 61, 3, 4 Fasciola angulata 41 Lineus 64, 10, 68 torquatus 66, 6, 10 viridis 65, 6, 10 Micrura 68, lo alaskensis 71, 6, 10 bella 71 impressa 70, 3, 10 verrilli 68, 6, 10 Nareda superba 41, 43 Nemertes 23 gracilis 23, 3, 4 obscura 65 Omatoplea stimpsonii a^Xi ^2 Paranemeites 32, 8 carnea 37, 6, 9, 32 pallida 36, 5, S, 32 peregrina33, 5, 8, 32 Planar ia gcssere/isis 65 linearis 19 viridis 65 PoZ/Vz 61 Tjeniosoma 61, 4, 10 CBquale 4 princeps 62, 6, 10 quinquelineatum 4 septemlineatum 4 Tetrastemma 57, 9 aberrans 58, 6, 9, 57 bicolor 57, 6, 9 caecum 59, 6, 9 cruciatum 58 rubrum 58 vermiculus 58 Zygonemertes 28, 9 albida 31, 5, 9, 29 thalassina 29, 5, 9 virescens 29, 30 PLATE I. Fig. I. Carinella cafistrata sp. nov. A large individual" about natural size. Virgin Bay, Prince William Sound. 2. Carinella dinema sp. nov. Victoria, B. C. Enlarged 1% times. 3. Head of same species. Side view. Enlarged 4 times. 4. Amphiporus bimaculatus sp. nov. Dorsal view of head. Glacier Bay. Enlarged 12 times. 5. Cerebratulus kerculeus sp. nov. A large individual. Sitka. Half nat- ural size. 6. Tetrastemma bicolor sp. nov. Kadiak. Three times natural size. (86) Proc Wash Acad. Sci., Vol.11 Plate ALASKA NEMERTEANS. PLATE II. Fig. I. Emplectonema burgeri si^. nov. Anterior portion of an individual of the pale variety. Glacier Bay. J^ natural size. 2. E. burgeri. A large individual of the dark variety. Glacier Bay. % natural size. 3. Tceniosoma princeps sp. nov. Large individual. Yakutat. % natural size. 4. T. princeps. A contracted specimen in formalin. Cape Fox. Nat- ural size. 5. Zygonemertes thalassina sp. nov. Sitka. Twice natural size. 6. Paranctnertes peregrina sp. nov. Brown variety. Victoria, B. C. A small specimen. Natural size. Compare pi. iii, fig. 5. (88) Proc. Wash. Acad. Scl, Vol.111. Plate ALASKA NEMERTEANS. PLATE III. Fig. I. Ampkiporus exilis s,'^. nov. Glacier Bay. Slightly enlarged. 2. Zyg07iemertes albida sp. nov. Victoria, B. C. Enlarged \%, times. 3. Paranemertes carnea sp. nov. Taku Harbor. Anterior portion of body with emarginate head. Natural size. 4. P. carnea. Sitka. % natural size. 5. Paranemertes peregrina sp. nov. Virgin Bay, Prince William Sound. % natural size. 6. Carinella speciosa sp. nov. Hot Springs, near Sitka. ^ natural size. (90) Proc. Wash Acad. Scl, Vol.111 Plate hi 2 11 V X '■-. ''W \ K^ ^_- 'i-^ 1 ALASKA NEMERTELANS. PLATE IV. Fig. I. Amphiporus nebulosus s'^.nov. Kukak Bay, Alaska Peninsula. Natural size. 2. Micrura alaskensis sp. nov. Sitka. Enlarged ij4 times. 3. Cerebratulus albifrons sp. nov. Near Sitka. Twice natural size. 4. Side view of head of same individual. 5. Amphiporiis tigrinus sp. nov. Farragut Bay. Mature male specimen, slightly enlarged. 6. A. tigrinus. Head of male ; dorsal view. Twice natural size. 7. A. tigrinus. Farragut Bay. Female with ripe ova. Slightly en- larged. 8. Head of female of same species. Dorsal view. Twice natural size. (92) Proc. Wash Acad. Sci., Vol.111. Plate iv. ALASKA NEMERTEANS. PLATE V. Fig. I. Micrura verrilli sp. nov. Virgin Bay, Prince William Sound. Natu- ral size. 2. Side view of head of same species. 3. The same ; contracted. 4. Cerebratulus longiceps %-^. v\.ov. Yakutat. Enlarged i^ times. 5. 6, 7. Heads of same species, from lateral, dorsal, and ventral aspects re- spectively. 8. Lineus torquatus sp. nov. Orca, Prince William Sound. Natural size. 9. L. torquatus. Side view of head. ID. Amphiporus bimaculatus sp. nov. Victoria, B. C Natural size. (94) Proc, Wash Acad. Sci., Vol, II Plate v. ALASKA NEMERTEANS. PLATE VI. Fig. I. Cerebratulus monigomeryi^^. no\. Dutch Harbor, Unalaska. Natural size. 2. Head of same species from ventral surface. 3. Cerebratnlus occidentalis sp. nov. Yakutat. Natural size. 4. Amphiforus angulatus [Y2ihx.)\Qrr\\\. Kadiak. Natural size of large specimen. (96) Proc Wash. Acad. Sci , Vol Plate vi BMei5el!i»Bosl0P ALASKA NEMERTEANS. PLATE VII . Fig. I. Zygonetnertes thalassina. Outline of stylet apparatus of proboscis ( X 50)- i^) i^> several accessory stylets from two individuals (X 225). Sitka. 2. Amfhifonis angulatus. Central portion of proboscis (X40). Taku Harbor, za, central stylet and basis of another specimen (X So). 3. Paranemertes pallida. Outline of middle region of proboscis ( X^o). 4. P. carnea. Extremity of everted proboscis, with six pouches of acces- sory stylets, of which but four are shown ( X 35)' Sitka. 5. Atnphiporus exilis. Middle portion of proboscis, indicating, besides central stylet and basis, eight pouches of accessory stylets (X4o)- Yakutat. 6. Amphiporus leuciodus. Stylet apparatus of proboscis showing the three accessory stylet pouches ( X^o)- Victoria, B. C. 7. Paranetnertes pcregrina. Outline of middle portion of proboscis (Xso)- Virgin Bay. (9S) Proc. Wash. Acad. Sci., Vol.111 Plate vil AL/\SKA NEMERTEANS. PLATE VIII. Fig. I. Emplectonema biirgeri. Outline of stylet apparatus (X35)- Glacier Bay. 2. Ainphtporus bimaculatus. Middle portion of proboscis, with four pouches of accessory stylets ( X 35 )• Glacier Bay. 3. Emplectoitema gracile. Stylet apparatus of proboscis (Xso)- Popof Island. 4. Amphiporus tigrinus. Middle region of proboscis (X^o). Farragut Bay. The deeply stained wreath of glands is indicated only in section. 5. Zygonemertes albida. Middle portion of proboscis ( X 40). Victoria, B. C. 6. Atnphiporus nebulosus. Outline of stylet apparatus of proboscis (X 5o)- Kukak Bay. 7. Paranemertes carnea. Side view of head, with partially everted probos- cis. The position of the lateral oblique furrows, and the arrangement of the ocelli are indicated ( X S)- Taku Harbor. (100) Proc. Wash Acad. Sci., Vol 11 Plate vi ALASKA NEMERTEANS. PLATE IX. Fig. I. Carinella sfeciosa. Transverse section through head in front of brain showing, particularly, position of enormously developed cephalic glands (^cgl') and arrangement of cephalic nerves («f ). The cephalic glands are thickly placed both above and below the cephalic blood lacunae (3/), as well as around the rhynchodaeum (^A). The secretion from many of these glands is discharged near the lateral margins as indicated {dgl). Between the longitudinal and oblique muscles (/?«), which lie in the deeper parts of the head, and the circular fibrous layer {cm), composed of muscles and connective tissue fibers underlying the integument («"), are numerous and very massive nerves {nv) which supply the head regions in front of the brain. The broad indentation on the ventral margin has no relation to the mouth, which lies much farther back. Other reference letters are explained above (p. 83). A small individual. ( X45)- 2. Carinella sfeciosa. Transverse, but somewhat oblique, section through head in region of brain. On the right of the section the brain {dg and 7;^) lies directly beneath the circular fibers {cni). External to the brain, and lying among the bases of the integumental cells, is the highly specialized cerebral sense organ (c5o), connected with the dorsal ganglion {dg) by several small nerves (5«). The cerebral sense organ shows a conspicu- ous central canal. The rhynchodaeum {rh) has lost its fringe of gland cells, these being limited to the regions anterior to it. The outer por- tion of the circular layer (cw) constitutes the basement membrane of the integument. In the region of the brain the circular layer splits into two sheets, one passing external to the brain and the other (//?) internal. Other reference letters as above. A large specimen. ( X25). 3. Carinella speciosa. Transverse section through nephridial region show- ing positions, and one of the openings, of the nephridial canals. The lateral blood lacuna ((5f ) and the nephridial canal {nep) lie embedded in a band of loose connective tissue on each side. The opening of one of the efferent nephridial ducts {nd) is seen on the right of the drawing. Other reference letters as indicated above. (X25). (102) Proc. Wash Acad. Sci , Vol. Ml Plate ix. //!iy/ . _ //A( - I 'I, 111 ilL^^ ALASKA NEMERTEANS. PLATE X. Fig. I. Carinella spectosa. Portion of transverse section through nephridial region. The ciliated nephridial canal {nep) shows the peculiar in- folding of the integumental cells on its dorsal border. These integu- mental cells are here loosely arranged, and show several deep infoldings {op) which, under certain circumstances, may possibly have a more or less distinct communication with the nephridial canal. But a small portion of the closely packed gland cells in the integument are indicated. Ref- erence letters are explained on p. S3. (X 75)- 2. Carinella spectosa. Portion of a transverse section through the brain region. The relation of the dorsal ganglion {dg) with the highly spec- ialized cerebral sense organ [cso) is indicated. The ciliated canal {cc) of the sense organ connects directly with the exterior by a narrow tube {sop) — shown in dotted lines in the drawing, because it lies mainly in another section — opening on the lateral margin of the head. Several nerves {sn) are seen to pass from the dorsal ganglion to the sense organ. Other reference letters as above. Only a small portion of the integu- mental gland cells are shown. (X 75)- 3. Amphiporics tigriiitcs. Dorsal view of anterior portion of body, cleared in cedar oil. In front of the brain the arrangement of the ocelli is shown, and farther back the position of the ovaries {ov). The intesti- nal cceca are not indicated. Farragut Bay. ( X S). 4. AmpJiiporus tigrinus. Median sagittal section through the anterior por- tion of the body. The cephalic glands ( cgl ) lie above the opening of the rhyncodaeum {ro). The mouth (■»/) separates from the proboscis opening a little way back. The attachment («/) of the proboscis to the tissues of the head is seen to be well in front of the brain commissures ( ^'^^^^ '"^nd body 566 (558-584) ; tail vertebra 77 (70-S9) ; hind foot 142 (140-146) ; hind foot without hoofs 126 (124-128). Cranial measurements of type: greatest length 114; basal length 107; basilar length 100; occipito-nasal length 106; length of nasals 32 ; diastema 13 (9) ;^ zygomatic breath 52 (46) ; least interorbital breadth 33 (28) ; greatest breadth of braincase above base of zygomata 38 (33) ; mandible 91 (78) ; maxillary toothi-ow (alveoli) 38 (34) ; mandibular toothrow (alveoli) 44 (39) ; anterior upper premolar 7x3.8 (6.4x3) ; middle lower premolar 7.2x3 (5.8x2.4). Weight. — Weight of type 3.8 kg. ; of two other males 3.6 kg. each. Two adult females weigh respectively 3.6 kg. and 4.2 kg. Speci?nens examined. — Six, all from the type locality. Remarks. — Trao-ulus bunoruranensis is so distinct from the other known species as to require no detailed comparisons. TRAGULUS sp. Two specimens from Sirhassen Island are too immature for deter- mination. Appai'ently they represent a member of the napu group, allied to that occurring in Borneo. The throat markings show no ap- proach to those of Tragulus bungtiraneJisis. TRAGULUS JAVANICUS (Gmelin). 1894. Tragidus Javanicus Thomas and Hartert, Novitates Zoologicse, i, p. 660. September, 1864 (Bunguran). 1895. Tragulus jai/aniciis TnomAS and Hartert, Novitates Zoologicae, 11, p. 492. December, 1895 (part, specimens from Bunguran). Six specimens from Bunguran. 'Measurements in parentheses are those of an adult male topotjpe of Tragulus nizricans. Il6 MILLER TRAGULUS PALLIDUS sp. nov. 1895. Tragulus Javanicus TnoukS and Hartert, Novitates Zoologicas, 11, p. 492. December, 1895 (part, specimen from Pulo Laut). Type. — Adult female (skin and skull) No. 104616 U. S. National Museum. Collected on Pulo Laut, North Natuna Islands, August II, 1900. Original number 625. Characters. — Smaller than Traguhis javanicus from Borneo or Bunguran and very pale in color. Black clouding of upper parts in- conspicuous, but dark nape band well defined. Color. — Back and sides light ochraceous-buff everywhere clouded oy the blackish hair-tips, but these never in excess, except perhaps along middle of back and across lumbar region. Flanks, shoulders, neck, outer surface of legs and narrow line dividing color of sides from that of belly pale ochraceous. Nape band clear black, sharply defined from color of sides but quickly fading into that of shoulders. Top of head dull dark brown. A faint pale stripe over and in front of eye. Throat markings normal, the dai-k bands like neck. Collar very narrow. Under parts and inner surface of legs white. A faint yel- lowish shade along middle of belly. Tail white beneath and at the tip, ochraceous faintly shaded with brown above. Skull. — The skull of the type, though fully adult and with all the teeth distinctly worn, is smaller than in Bunguran specimens so young that the posterior molars are still below the rim of the alveoli. In form, however, it shows no marked peculiarities, though in general it appears to be somewhat broader in proportion to its length than that of the Bunguran animal. Teeth. — Teeth as in specimens of Tragiilus javanicus ixor^ Bungu- ran except that the premolars, both above and below, are shorter and broader, a difference which may prove to be an individual peculiarity only. Measurements. — External measurements of type : Total length 539; head and body 444; tail vertebrce 95; hind foot 107; hind foot without hoofs 95. Cranial measurements of type: Greatest length 90 (94^); basal length 83 (87) ; basilar length 78 (82) ; occipito-nasal length 83 (89) ; length of nasals 25 (29.6) ; diastema 9.2 (9.8) ; zygomatic breadth 41.4 (40) ; least interorbital breadth 26.4 (25) ; breadth of braincase over roots of zygomata 29.4 (28.4) ; mandible 72 (75) ; ^Measurements in parentheses are those of a less mature specimen from Bunguran. MAMMALS OF THE NATUNA ISLANDS II7 maxillary toothrow (alveoli) 31.6 (34); first upper premolar 6.4 X 2.8 (7 X 2.6) ; mandibular toothrow (alveoli), 35.8 (38). Spechnens exa?nined. — One, the type. Remarks. — This is a pallid form of Tragiihis Javanictis^ a species which apparently shows very little tendency to become differentiated into local races. The characters of the Pulo Laut animal were pointed out by Thomas and Hartert in 1895. SUS NATUNENSIS sp. nov. 1894. Sus sp. Thomas and Hartert, Novitates Zoologicae, i, p. 660. Sep- tember, 1894 (Bunguran). 1895. Sus sp. Thomas and Hartert, Novitates Zoologicae, 11, p. 492. De- cember, 1895 (Bunguran). Type. — Adult female (skin and skull) No. 104856 U. S. National Museum. Collected on Pulo Laut, North Natuna Islands, August 6, 1900. Original number 609. Characters. — Externally much like the Tenasserim form of Sus cristatus., but smaller ; body brownish in marked contrast with black legs and face ; skull conspicuously shorter and broader. Fur. — The fur throughout consists of bristles with no admixture of softer hairs. The bristles are everywhere less stiff than in the Tenasserim pig, but the difference is most noticeable in the mane, which, though well developed (about So mm. in length), is composed of bristles very slightly coarser than those of the surrounding parts, and of not more than half the diameter of the corresponding hairs in females of S. cristatus. Muzzle, chest, belly and ears nearly bare. Color. — General color black, clear and unmixed with brown on legs, throat, and face, but elsewhere heavily overlaid with brownish buff, particularly on back and sides. The brownish wash ceases ab- ruptly just in fi'ont of ears, leaving the face and cheeks clear black. A conspicuous dull buff streak 100 mm. long and about half as wide at middle extends back from angle of mouth to level of posterior can- thus of eye. It is sharply outlined above by black of cheeks, and be- low by that of chin. A faint buffy mark beneath eye. Tail like back. Skull. — The skull while much shorter than that of Sus cristatus from Tenasserim is actually broader. As a result the width across postorbital processes is contained only about three times in occipito- nasal length, as opposed to nearly four times in the related species. Similarly the zygomatic breadth slightly exceeds one half of the basi- lar length, while in Sus cristatus it is less than half. Width of pal- Il8 MILLER ate between middle molars almost exactly one sixth distance from pos- terior edge of palate to front of premaxillaries (measured along me- dian line). In Szis cristatus the palatal width is contained nearly seven times in the same distance. Dorsal profile of skull slightly con- cave near base of nasals. Zygomata heavier and deeper than in Sus cristatus. Audital bullae noticeably smaller and less inflated than in the Tenasserim pig. Mandible shorter and much more robust than that of Sus cristatus, the outward bulge of the ramus a little behind middle of toothrow greatly accentuated. Teeth. — As the teeth of the two specimens of Sus natunensis are much worn, while those of the only skulls of Sus cristatus at hand are not fully grown, it is impossible to make any accurate comparisons. The smaller size of the Natuna pig's teeth is, however, evident for the length of the entire upper toothrow does not equal that of S. cristatus without the posterior molar. The crown of the middle upper molar appears to be more nearly square in outline than that of the Tenas- serim pig, but in the very different condition of the specimens it would be unsafe to assume that this character is constant. Measurements, — External measurements of type ; total length 1294; head and body 11 17; tail vertebras 177; height at shoulder 558 ; hind foot 220 (170) ; ear from meatus 100 ; w^dth of ear 75. Cranial measurement of type: greatest length 295 (332'); oc- cipito-nasal length 282 (316) ; basal length 245 (275) ; basilar length 235 (263) ; length of nasals 135 (157) ; width of both nasals together posteriorly34 (33) ; median length of bony palate 168 (183) ; width of bony palate at middle of second molar 30 (29) ; breadth between tips of postorbital processes 87 (87) ; least interorbital breadth 64 (65) ; zygo- matic breadth 130 (133) ; occipital breadth 58 (62) ; occipital depth 100 (103) ; least depth of rostrum between canine and incisor 33 (39) ; mandible 225 (232) ; depth of mandible through coronoid process 104 (no); depth of ramus at front of first molar 40 (41); maxillary toothrow to front of canine (alveoli) 113 (131^); mandibular tooth- row to front of canine (alveoli) 120 (138) ; ci^own of first upper molar 12 X 13 (18 X 16) ; crown of second upper molar 18 X 18 (22 x 16). Weight. — Weight of type, 40 kg. ; weight of adult female from Pulo Lingung, 35 kg. Specimetzs exaf?iined. — Two, one from Pulo Laut, the other from Pulo Lingung. ^ Measurements in parentheses ai-e those of a Tenasserim specimen (female) of Sus cristatus so young that the posterior molar is not fully in place. *Last molar not fully grown. MAMMALS OF THE NATUNA ISLANDS II9 Remarks. — While the two specimens agree in all essential characters they differ in numerous minor details. The skin from Pulo Lingung is somewhat darker than the type, but the difference is due to the shade of the brown wash, not to any extension of the black. The skull of this specimen is more rounded posteriorly than that of the type, and the rostrum is shorter. Both specimens show conclusively that their rela- tionships are with the Sus cristatus of the Malay Peninsula and not with the S. longirostris of Borneo, a case which finds an exact par- allel in the giant squirrels. MUS INTEGER sp. nov. 7>/^.— Adult male (skin and skull) No. 104837 U. S. National Mu- seum. Collected on Sirhassen Island, South Natunas, June 7, 1900. Original number 455. Characters. — A large robust species with coarse but not spinous fur. Relationships with Mus validus Miller, from Trong, Lower Siam, and Mus mulleri Jentink from Sumatra. Differs from the former in smaller size and in the absence of the anterior outer tubercle of the last upper molar, and from the latter in larger size, and yellowish brown (not white) underparts. Color. — Back and sides a fine grizzle of black and dull ochraceous (the exact shade intermediate between the ochraceous and ochraceous- buff of Ridgway), the two colors nearly equally mixed on back, but the ochraceous in excess on sides. Underparts and inner surface of legs buff. An ill defined drab-gray median line from throat to pubic region. Head darker and more glossy than back, the cheeks distinctly washed with gray. Lips and chin drab-gray. Feet an indefinite brown, darker on metapodials. Ears essentially naked, dark brown. Tail dark brown throughout. Underfur gray (Ridgway, pi. 11, No. 8), be- coming paler on under parts where it fades irregularly into the general buff. jTur. — The fur is exactly as in Mus validus^ that is the grooved bristles are so slender that their true nature is not apparent without use of lens. On middle of back the mass of the fur is about 17 mm. in length, the long terete hairs scattered through it reaching about 30 mm. On rump the fur is longer but not conspicuously so, and there is no noticeable increase in length or abundance of the terete black hairs. Tail., feet and mamfuce. — Tail slightly more coarsely scaled than in Mus validus; 9 rings to the centimeter at middle. Hairs scarcely noticeable except toward tip, where they somewhat exceed the breadth of the rings. I20 MILLER Feet heavy and robust. Thumb short, with a flat bhuit nail. Soles and palms naked, the former with six well developed tubercles, the latter with five. Mammae, p. 2 — 2, i 3 — 2 = 8. SktilL — In general appearance the skull of Miis mteger resembles that of Mus valldus} It is shorter (greatest length about 51 instead of £55) and the rostrum is relatively broader and deeper. Audital bullae similar in form to those of JMiis validus^ but the surface less irregular. Region between anterior bases of zygomata broader than in Mus validus so that the arches are more nearly parallel. Teeth, — The teeth are relatively as well as actually smaller than in Miis validus and the enamel pattern is normal, that is, the posterior vipper molar consists of two transverse folds, and an anterior internal tubercle. There is no trace of the supplementary outer tubercles of the corresponding tooth of ]\Ius validus. Measurements. — External measurements of type : total length 463 ; head and body 235 ' tail vertebrje 228^; hind foot 48 (45) ; ear from meatus 19 ; ear from crown 15 ; width of ear 15. In adult male topo- type : total length 462 ; head and body 234 ; ^ tail vertebrce 228 ; ^ hind foot 46 (44) ; ear from meatus 21 ; ear from crown 16; width of ear i6. Cranial measurements of type: greatest length 52 (55);^ basal length 45 (48. 6) ; basilar length 41.6 (45.6) ; palatal length 23 (26) ; least width of palate between anterior molars 5 (5) ; diastema 14 (14.6) ; * length of incisive foramen 8 (9) combined breadth of incisive foramina 3 (3.6) ; length of nasals 21 (22.6) ; combined breadth of nasals 6 (6.2) ; zygomatic breadth 25 (28) ; interorbital breadth 8 (8) ; mastoid breadth 19 (19) ; breadth of braincase above roots of zygomata 18.8 (20) ; depth of braincase at anterior border of basi-occipital 12.8 (15) ; frontopalatal depth at posterior extremity of nasals 12.8 (13.4) ; least dejoth of rostrum immediately behind incisors 10 (10) ; maxillary toothrow (alveoli) 9.6 (11) ; width of front upper molar 3 (3) ; man- dible 30 (31) ; mandibular toothrow (alveoli) 9 (10). Speci?nens examined. — Four, three from the type locality, and one from Pulo Lingung. Remarks. — This rat is probably a near relative of the Bornean Mus 7}iiilleri of Thomas.^ The specimen from Pulo Lingung does not differ appreciably from the others. ' See Proc. Biol. Soc. Washington, xiii, pi. iii and iv. * Collector's measurement. ^Measurements in parentheses are those of the type of Mus rmlidtis. *In the type of Mus jniilleri ihe diastema is 12 mm. *Ann. and Mag. Nat. Hist., 6th ser., xiv, p. 450. December, 1894. MAMMALS OF THE NATUNA ISLANDS 121 MUS SABANUS Thomas. 1887. Mus sabanus Thomas, Ann. and Mag. Nat .Hist., 5th sen, xx, p. 270. October, 1887 (Mt. Kina Balu, Borneo). 1894. Mils sabanus Thomas and Hartert, Novitates Zoologicae, i, p. 658. September, 1894 (Bunguran). Thirteen skins and one extra skull, all from Bunguran. There is little probability that this rat is the same as the true il/?c5 sabanus of Borneo. MUS RAJAH Thomas. 1894. Mus hellwaldi Thomas and Hartert, Novitates Zoologicae, i, p. 658. September, 1894 (Bunguran). 1894. Mus rajah Thomas, Ann. and Mag. Nat. Hist., 6th ser., xiv, p. 451. December, 1894 (Mount Batu Song, Borneo). 1895. Mus rajah Thomas, Novitates Zoologicae, 11, p. 26. February, 1895 (Revised determination of Bunguran specimens). Six specimens (one in alcohol) from Bunguran, two from Pulo Lin- gung, one from Pulo Laut, four (one in alcohol) from Sirhassen, and one (in alcohol) from Pulo Midei. It is doubtful whether these series are referable to one species or whether any of them are the true Bor- nean Mus rajah. The material is not wholly satisfactory, and I have been unable to examine specimens from Borneo. MUS NEGLECTUS Jentink. 1894. Mus rattus var. Thomas and Hartert, Novitates Zoologicae, i, p. 658. September, 1894 (Bunguran). 1895. Mus 7ieglechis Thomas and Hartert, Novitates Zoologicae, 11, p. 492. December, 1895 (Bunguran). Five specimens from Pulo Lingung, one from Pulo Midei, and nin^ from Sirhassen. In the absence of Bornean material, I follow Thomas and Hartert in referring the Natuna rats of the ' alexandrt?ms ' type to ]\Ius neglectus. SCIUROPTERUS EVERETTI Thomas. 1894. Sciicropterus phayrei Thomas and Hartert, Novitates Zoologicae, I, p. 660. September, 1894 (Bunguran). 1895. Sciuropterus evereiti Thomas, Novitates Zoologicae, 11, p. 27. Feb- ruary, 1895 (Revised determination of Bunguran specimens). 1895. Sciuropterus everctti Thomas and Hartert, Novitates Zoologicae, II, p. 490. December, 1895 (Bunguran). Two specimens, both from Bunguran ; an immature male taken July 4, and an adult female taken July 21, 1900. PETAURISTA NITIDULA Thomas. 1894.. Pteroinys nitidus Thomas and Hartert, Novitates Zoologicae, i, p. 660. September, 1894 (Bunguran). 122 MILLER 1895. Pteroinys nitidtis Thomas and Hartert, Novitates Zoologicae, 11, p. 490. December, 1895 (Bunguran). 1900. Petaiirista tiitidula Thomas, Novitates Zoologicas, vii, p. 592. De- cember 8, 1900 (Bunguran). Seven specimens from Bunguran. SCIURUS PROCERUS sp. nov. 1894. Sciurus femds Thomas and Hartert, Novitates Zoological, i, p. 659. September, 1894 (Bunguran). 1895. Sciurus tenuis Thomas and Hartert, Novitates Zoologicss, 11, p. 492. • December, 1895 (Bunguran). Type.—KAxxW. male (skin and skull) No. 10469S U. S. National Mu- seum. Collected on Bunguran Island, North Natunas, July 18, 1900. Original number 574. Characters. — Externally similar to Sciurus tenuis though some- what smaller. Skull very much smaller and relatively broader than in the related species. Color. — The color is exactly like that of Sciurus tefiuis from Sing- apore. Skull atid teeth. — Except that it appears to be broader throughout, relatively to its length, the skull of Sciurus procerus is essentially a miniature of that of S. tetzuis, as the braincase shows none of the ten- dency to increased depth characteristic of the Bornean animal. Ratio of rostral depth to distance between middle of interparietal and lower rim of audital bulla, 50. This ratio is 49 in S. tenuis. Measurefnents. — External measurements of type : total length 235 ; head and body 140; tail vertebrje 95 ; hind foot 35 (33). Average and extremes of four specimens from the type locality : total length 239-5 (235-247); head and body 140; tail vertebrae 99.5 (95-107); hind foot 35.2 (34-36.5) ; hind foot without claws 32.9 (31.8-34). Cranial measurements of type : greatest length 34 (38) ;^ basal length 28.6 (32) ; basilar length 26 (29) ; palatal length 14.6 (16) ; diastema, 7.6 (8.8) ; length of nasals 10.4 (11.4) ; greatest breadth of nasals 4.8 (5.6); interorbital breadth 12 (12.6); zygomatic breadth 20.8 (21) ; greatest breadth of braincase 17 (17.6) ; cranial depth from middle of interparietal to lower rim of audital bulla 14 (15); least depth of rostrum 7 (7.2) ; mandible, 20 (21) ; maxillary toothrow (alveoli) 6 (7) ; mandibular toothrow (alveoli), 6 (7). Specimens examined. — Six, all from the type locality. Remarks. — This species is immediately distinguishable from its ^ Measurements in parentheses are those of an adult male topotjpe of Sciurus tenuis. MAMMALS OF THE NATUNA ISLANDS 1 23 allies by its small skull, scarcely larger than that of Funambidus macclellaiidi. SCIURUS NATUNENSIS (Thomas). 1894. Schirus /otvz Thomas and Hartert, Novitates Zoologicae, i, p. 659. September, 1894 (Sirhassen), 1895. Sciurus lowi natitnensis Thomas, Novitates Zoologicae, 11, p. 26. Feb- ruary, 1895 (Revised determination of Sirhassen specimen). 1895. ? Sciurus lowinatunensis Thomas and Hartert, Novitates Zoologicae, II, p. 491. (Bunguran and Pulo Laut.) Four specimens from Sirhassen. The average and extreme meas- urements are as follows: total length 222 (215-229) ; head and body 135 (133-140) ; tail vertebrae %6 (82-89) 5 hind foot 33.6 (33-35) ; hind foot without claw 31.5 (30.5-32). SCIURUS LINGUNGENSIS sp. nov. 1895. ? Sciurus lowi 7iatunetisis Thomas and Hartert, Novitates Zoologicae, II, p. 491. (Bunguran and Pulo Laut.) Type. — Adult male (skin and skull) No. 104693 U. S. National Musuem. Collected on Pulo Lingung off southern extremity of Bun- guran, North Natuna Islands, June 19, 1900. Original number 494. Characters. — Externally similar to Sciurus natunensis (Thomas), but slightly larger (hind foot with claws 36 Instead of 33.6). Skull larger than that of S. natmze?zsis^ the audital bullae much broader anteriorly. Color. — The color is precisely as in Sciurus natunensis., and there- fore requires no detailed description. Skull. — Skull larger than that of Sciurus natunensis (see measure- ments) but not different in general form. The audital bullae are, however, readily distinguishable by the much greater development of the anterior inner lobe. In Sciurus tzatu7iensis this lobe is so small as scarcely to form any part of the general contour of the bulla. In S. lingungensis it is nearly equal to the anterior outer lobe, together with which it imparts a distinctly triangular outline to the ventral as- pect of the bulla. Aleasuretiieitts. — External measurements of type : total length 229 ; head and body 140; tail vertebrae 89; hind foot 36 (33.7) ; ear from meatus 12 ; ear from crown 7. A second specimen from the type lo- cality gives precisely the same measurements. Cranial measurements of type : greatest length 38 (36) ;^ basal length 33 (3^)5 basilar length 30 (29); palatal length 17 (16); greatest ' Measurements in parentheses are those of an older specimen of Sciurus natu- nettsis from Sirhassen. 124 MILLER length of nasals ii (lo) ; greatest width of both nasals together 5 (5) ; interorbital breadth 12 (11.4) ; zygomatic breadth 33.4 (20) ; mastoid breadth 17 (16.6) ; depth of braincase at anterior edge of basi-occipital 13.6 (13) ; mandible 23 (33) ; maxillary toothrow (alveoli) 6.4 (7) ; mandibular toothrow (alveoli) 7 (7). Speciviens examined. — Two, both from the type locality. Remarks. — While Sciiirus lingunge7isis is scarcely distinguishable from S. natiutensis by external characters alone, size of the skull and form of the audital bullae are clearly diagnostic. Both species from the Natunas are separated from the Bornean 6*. loxvi Thomas by their well developed ears, and shorter broader rostral portion of skull. SCIURUS LUTESCENS sp. nov. 1894. Sciurtis notatus Thomas and Hartert, Novitates Zoologicae, i, p. 659. September, 1894 (part, specimens from Sirhassen). Type. — Adult male (skin and skull) No. 104668 U. S. National Museum. Collected on Sirhassen Island, South Natunas, June 3, 1900. Original number 429. Characters. — Allied to Sciurtis noiatus., but considerably smaller than the Bornean representative of the species. Colors very pale, the under parts buff or cream-buff (Ridgway, pi. v, nos. 13 and 11) ir- regularly tinged with gray. Color. — Entire dorsal surface of body and tail a fine grizzle of black and cream-buff, the individual hairs black with two or three cream buff rings. On tail the grizzle is less fine than on back, and it shows a faint tendency to resolve itself into obscure cross bands. On sides of body and on head the cream-buff brightens to buff. Cheeks and muzzle buff, scarcely grizzled. Feet slightly yellower than sides, under parts and inner surface of legs pale buff, palest anteriorly and laterally (where it about matches the cream-buff of Ridgway) bright- est along median line. Under side of tail dull ochraceous-buff slightly grizzled with black. Pencil not different from rest of tail. Between the colors of sides and belly are the usual longitudinal stripes. The outer of these is about 5 mm. in width, and cream-buff in color. The inner is about twice as wide, and black, but much obscured by a thick sprinkling of bluish gray hairs. Outer surface of ears concolor with neck, inner surface like cheeks. The sprinkling of bluish gray hairs on sides of belly extends irregularly forward to axilla and inner side of front leg, occasionally to throat and chin. Skull. — As compared with the Bornean form of Sciurus notatus^ the skull of 6". lutescens is much smaller (greatest length about 45 in- MAMMALS OF THE NATUNA ISLANDS I25 stead of 50) the rostrum is relatively shorter and broader, and the audital bullae are less elongate antero-posteriorly. Teeth as in Sciurus notatus except that they are uniformly smaller. Measurements. — External measurements of type : total length 355 ; head and body 177 ; tail vertebrae, 177 ; hind foot 45 (41). Average and extremes of six specimens fi'om the type locality : total length 356 (329-375) ; head and body 186 (177-196); tail vertebrte 170 (152- 178) ; hind foot 43.8 (41-45) ; hind foot without claws 40.7 (39- 42). Cranial measurements of type: greatest length 45.4 (50.4)^; basal length 39 (43) ; basilar length 36.4 (41) ; palatal length 20 (23) ; palatal width between middle molars G (6) \ greatest length of nasals 13 (14.8) ; greatest width of both nasals together 6.6 (7) ; interor- bital breadth 15.4 (17) ; mastoid bi'eadth 21 (21) ; zygomatic breadth 26 (29) ; depth of braincase at anterior edge of basi-occipital 16 (16.8) ; mandible 28 (30) ; maxillary toothrow (alveoli) 8 (9) ; mandibular toothrow (alveoli) 8 (9). Specimens examined. — Seven (one in alcohol), all from the type locality. Rejnarks. — This squirrel is recognizable among the members of the S. notatus group by its light colors, and particularly by the pallor of the under parts. In the latter characteristic it is approached by the form inhabiting Pulo Laut, but with this exception it is unique among the fulvous bellied species. The six specimens show no variation worthy of note. SCIURUS SERAIS sp. nov. Type. — Adult male (skin and skull) No. 104660 U. S. National Museum. Collected on Pulo Seraia, South Natuna Islands, May 29, 1900. Original number 415. Characters. — Most nearly related to the small, pallid, Sciurus hitescens from Sirhassen Island, but upper parts slightly less pale, and under parts and pale side stripe buff -yellow, the former without admixture of gray. Color. — Upper parts as in Sciurus hitescens except that the pale bands on the hairs are more nearly buff than cream-buff. Tail essen- tially as in kS. lutescens but a shade less pale. Under parts buff -yellow darkening in-egularly to dull orange-buff. Dark side stripe broad and well defined. Skicll. — The skull closely agrees with that of Sciurus lutescens in ' Measurements in parentheses are those of an adult Sciurus notatus from Borneo. 126 MILLER both size and form, though it is perhaps even broader in proportion to its length. Teeth as in S. lutescens. jMeasuremeiits. — External measurements of type : total length 368 ; head and body 197; tail vertebrse 171 ; hind foot 44 (40). Avei^age and extremes of four specimens from the type locality : total length 347 (323-368) ; head and body 1S4 (171-197) ; tail vertebrae 163 (152-171) ; hind foot 43.7 (43-45); hind foot without claws 40.1 (39-5-40 • Cranial measurements of type : greatest length 45 ; basal length 38.6 ; basilar length 36 ; zygomatic breadth 26.4 ; least interorbital breadth 17; mandible 28; maxillary toothrow (alveoli) 8.6; mandib- ular toothrow (alveoli) '$>.6. Specimens examined. — Four, all from the type locality. Remarks. — As might be expected from the geographic position of the island it inhabits, Sciurzis seraice differs from the Bornean 6". 7iotaius in much the same way as the Sirhassen representative of the group. It is readily distinguishable from the Sirhassen animal by the different color of the under parts. In color Sciurus seraice closely resembles S. abbottii oi the Tambelan Islands. The latter is, however, a much larger animal, with a longer and relatively narrower skull. SCIURUS RUTILIVENTRIS sp. nov. Type. — Adult male (skin and skull) No. 104658 U. S. National Museum. Collected on Pulo Midei (Low Island), South Natuna Islands, May 24, 1900. Original number 405. Characters. — Size slightly greater than that of Sciurus lutescens and S. seraice.^ but not equal to that of the Bornean or Bunguran rep- resentatives of 6*. fiotatus. Color above as in S. seraice. Under parts bright clear orange-rufous. Color. — Color exactly as in Sciurus seraice except that the pale side stripe is light cream-buff and the under parts are bright orange rufous. Tail without trace of red suffusion. Skull and teeth. — The skull and teeth are a trifle larger than in Sciurus lutescens and 6". seraice., but the difference is scarcely a tangible one. Measurem^ents . — External measurements of type : Total length 368; head and body 190; tail vertebrae 178; hind foot 45 (41). Average and extremes of seven specimens from the type locality : total length 356 (330-368) ; head and body 186 (178-190) ; tail vertebrae 173 (165-184); hind foot 45.5 (43-48); hind foot without claws 42.2 (39.5-45). MAMMALS OF THE NATUNA ISLANDS 1 27 Specimens examined. — Seven, all from the type locality. Rei7iarks. — This squirrel is remarkable among the Natuna members of the S. notatus group for the brilliant color of its vmder parts. In this respect it surpasses all of the related forms with which I am ac- quainted. The red color is, however, strictly confined to the body, showing no tendency to spread to the tail as in S. miniatiis of the Ma- lay Peninsula. SCIURUS RUBIDIVENTRIS sp. nov. 1894. Sciurus noiatus Thomas and Hartert, Novitates Zoologicas, i, p. 659. September, 1894 (part, specimens from Bunguran). 1895. Sciurus tiotatitsTnouxs and Hartert, Novitates Zoologlcae, 11, p. 491. December, 1895 (part, specimens from Bunguran). Type. — Adult female (skin and skull) No. 10467 1 U. S. National Museum. Collected on Bunguran Island, North Natunas, June 22, 1900. Original number 49S. Characters. — Size and general appearance both above and belo\v as in the Bornean form of Sciurus notatus., but red of under parts brighter, and cheeks and chin distinctly less fulvous than surrounding parts. Skull with broader, deeper braincase than in the Bornean animal. Color. — The color so closely resembles that of the Bornean Scizcrus notatus that no detailed description is necessary. Under parts ochra- ceous-rufous, fading to tawny on throat, everywhere lighter and more tinged with red than in the Bornean animal. In the latter the color of the under parts extends forward to lips and also strongly suffuses the cheeks and sides of head which are only a shade browner than the throat and conspicuously more fulvous than top of head and sides of neck. In Sciurus rubidiventris the cheeks and lips are noticeably suffused with gray so that they form a distinct contrast with both throat, top of head and sides of neck. Skull. — The skull agrees in general size with that of the Bornean animal, and is therefore much larger than in thethi"ee species from the South Natunas. It is distinguishable by greater general breadth and by the depth of the braincase, which perceptibly exceeds that of S. fiotatus. Measure?ne7tts. — External measurements of type : total length 380 ; head and body 209 ; tail vertebrae 171 ; hind foot 49 (44.5). Averages and extremes of seven specimens from the type locality : total length 37S (3^S~393) ' head and body 208 (203-223) ; tail vertebrae 173 (165-184) ; hind foot 49.3 (48-50) , hind foot without claws 45.7 (44-5-47) • Cranial measurements of type: greatest length 52.4 (50.4);^ basal 1 Measurements in parentheses are those of an adult Bornean Sciurus notatus. 128 MILLER length 44 (43) ; basilar length 41 (41) ; palatal length 23 (23) ; palatal width between middle molars 6 {6) ; greatest length of nasals 15 (14.8) ; greatest width of both nasals together 7.2 (7) ; interorbital breadth 18.2 (17) ; mastoid breadth 23 (21) ; breadth of braincase above roots of zygomata 24 (22) ; zygomatic breadth 30.4 ( 29) ; depth of braincase at anterior edge of basi-occipital 17.8 (16. 8) ; man- dible 29 (30) ; maxillary toothrow (alveoli) 9 (9) ; mandibular tooth- row (alveoli) 9 (9). Specimens examined. — Seven, all from the type locality. Remarks. — In both size and general color this squirrel more closely resembles the Bornean representative of the group than it does either of the three forms from the South Natunas. Its relationships, how- ever, appear to be rather with the race inhabiting Singapore Island than with any of its near geographic allies, Sciurus latitensis excepted. SCIURUS LAUTENSIS sp. nov. 1895. Sciurus notalus Thomas and Hartert, Novitates Zoologicae, 11, p. 491. December, 1895 (part, specimens from Pulo Laut). Type. — Adult female (skin and skull) No. 104683 U. S. National Museum. Collected on Pulo Laut, North Natuna Islands, August 6, 1900. Original number 612. Characters. — Size slightly less than that of Sciurus rubidiventris and color conspicuously pallid. Upper parts as in S. lutescens ; lower parts nearly as in S. seraice but rather less dull ; pale side stripe much less yellow than belly. Skull as in Sciurus rubidiventris. Color. — Upper parts and tail as in Sciurus lutescens. Cheeks faintly washed with ochraceous-buff. Under parts and inner surface of legs bright ochraceous-buff (distinctly more yellow than Ridgway's pi. V, No. 10). Lateral stripes as in 6". hitescens (not distinctly yel- lowish as in S. seraice)., but black band usually less sprinkled with gray. Scarcely a trace of gray in axillary region or on sides of neck. Skull. — The skull in all respects closely resembles that of S. rubidi- ventris except that it is slightly smaller. Its large size and the corre- spondingly large teeth readily distinguish it from that of the South Natuna species. Measurements. — External measurements of type : total length 375 ; head and body 195 ; tail vertebrae 180; hind foot 44 (41). Average and extremes of nine specimens from the type locality ; total length 3^3 (355~379) ; head and body 1S9 (171-196); tail vertebree 170 (165-183) ; hind foot 45 (44-46) ; hind foot without claws 42 (41-43)- MAMMALS OF THE NATUNA ISLANDS 1 29 Specimens examined. — Ten (one in alcohol), all from the type locality. Remarks. — Though suggesting two of the small South Natuna squirrels in color, Sciurus lautensis is obviously related to the dark colored Bunguran form, with which it more nearly agrees in size. SCIURUS NAVIGATOR (Bonhote). 1894. Sciurus prevostii Thomas and Hartert, Novitates Zoologicse, I, p. 656. September, 1894 (Sirhassen). 1901. Sciurus prevostii 7iavigator BotinoiK, Ann. and Mag. Nat. Hist., 7th ser., VII, p. 171. February, 1901 (Sirhassen). Nine specimens, three from Sirhassen Island and six from Pulo Subi. Those from Pulo Subi, while agreeing with the topotypes in color, appear to average a trifle smaller, though the series is hardly exten- sive enough to prove that this is constant. RATUFA SIRHASSENENSIS (Bonhote). 1894. Sciurus bicolor albiceps Thomas and Hartert, Novitates Zoologicae, I, p. 659. September, 1894 (Sirhassen). 1900. Ratufa ephippium sirhassenensis Bonhote, Ann. and Mag. Nat. Hist., 7th ser., v, p. 498. June, 1900 (Sirhassen). Two specimens, Sirhassen, June 8, 1900. This species, though related to Ratufa ephippium.^ with which it agrees in color-scheme, is sharply differentiated by its small size and cranial peculiarities. It is in no way closely allied to Ratufa bunguranensis and R. nanogigas. As compared with that of Ratufa ephippium sandakanensis Bon- hote, the skull in addition to its small size (greatest length 57 instead of 65) differs in general narrowness, in the relatively greater breadth of the nasal branches of the premaxillaries, and in the form of the audital bullae. When the skull is held upside down and viewed from behind the bullae are seen to be narrower than in the Bornean animal and to rise to a much greater height above the surface of the basi- occipital. RATUFA BUNGURANENSIS (Thomas and Hartert) . 1894. Sciurus bicolor bu7tguranensis Thomas and Hartert, Novitates Zoo- logicse, I, p. 658. September, 1894 (Bunguran). 1895. Sciurus bicolor bunguratiensis Thomas and Hartert, Novitates Zoo- logicae, II, p. 491. December, 1895 (Bunguran). 1900. Ratufa ephippium bungt(ra7iensis Bonhote, Ann. and Mag. Nat. Hist., 7th ser., V, p. 497. June, 1900. Thirteen specimens from Bunguran, all in various stages of the Proc. Wash. Acad. Sci. April, 1901. (129) 130 MILLER change from the bleached winter coat to the summer pelage. In the latter there is some color variation, mostly due to the gi'eater or less distinctness of the drab wash overlying the Prouts-brown or ' choco- late' of the upper parts. Not only does the drab vary in amount in different individuals, but on every specimen it is more noticeable when the animal is viewed from in front. The drab wash is of the same character as that in Ratufa ajffinis^ though less conspicuous. As Mr. Thomas has pointed out to me, after examining a specimen of the latter, Ratufa bungiwanensis is closely allied to R. pyrsonota. Indeed its relationship to the Siamese species is much closer than to the R. epkt'ppzum of Borneo. Together with R. pyrsonota the Bun- guran giant squirrel differs conspicuously from that of Borneo in its narrow skull, lengthened audital bullce, dark feet, dark median line on under surface of tail, and entirely brown back. From R. pyrsonota, however, it is readily separable by its darker, less ochraceous color both above and below, drab washed back, and by the much less dis- tinct annulation of the hairs of the dorsal surface. RATUFA NANOGIGAS (Thomas and Hartert). 1895. Sciurus bicolor nanogigas Thomas and Hartert, Novitates Zoologicae, II, p. 491. December, 1895 (Pulo Laut). 1900. Ratufa ephippiuni fianogigas Bonhote, Ann. and Mag. Nat. Hist., 7th ser., V, p. 498. June, 1900 (Pulo Laut). Four specimens, all from Pulo Laut, the type locality. This strongly characterized dwarf species is allied to Ratufa Pyr- sonota and R. bunguranensis with which it agrees in color scheme. It is in no way closely related to the large Bornean R. ephif>pium. RATUFA ANGUSTICEPS sp. nov. lype. — Adult male (skin and skull) No. 104646 U. S. National Museum. Collected on Pulo Lingung, off south coast of Bunguran, June 17, 1900. Original number 481. Characters. — Externally like Ratufa a?zambce and R. ?nelanopepla. Skull about equal to that of latter in length, but conspicuously narrower. Color. — As the color is precisely like that of Rattfa ana7nbcB and R. melanopepla it requires no description. Skull and teeth. — The skull is immediately recognizable by its gen- eral narrowness, but particularly in the region of the anterior zygomatic roots. Ratio of lachrymal breadth to greatest length, 39. In the other black backed species it is about 42. Audital bulls narrower and more elongate than in R. melanopepla., and more elevated above level of basi-dccipital (when skull is held upside down). Lateral processes of basi-occipital obsolete. MAMMALS OF THE NATUNA ISLANDS I3I Teeth'as in the i-elated species. AIeasureme7its. — External measurements of type : total length 748 ; head and body 342 ; tail vertebrae 406 ; hind foot 79 (74). Cranial measurements of type : greatest length 48. 6 (70) ;^ basal length 57 (59) ; basilar length 52 (53) ; diastema 15.6 (16) ; length of nasals 22 (23.4) ; breadth of nasals anteriorly 12 (13) ; breadth of nasals posteriorly 6 (7) ; interorbital breadth 27 (28) ; lachrymal breadth 28.4 (31) ; breadth between tips of postorbital processes 38 (41) ; zygomatic breadth 41 (44) ; mastoid breadth 31 (32.6) ; man- dible 40 (41.6) ; maxillary toothrow (alveoli) 14 (14); mandibular toothrow (alveoli) 14.6 (14.4). Speci77iens examined. — One, the type. Remarks. — While this squirrel exactly resembles the other black backed species with untufted ears, so far as external characters are concerned, it seems to be well differentiated in cranial peculiarities. No black backed Ratufa has hitherto been recorded from the Na- tunas. RHINOSCIURUS sp. An immature long-nosed squirrel was taken on Sirhassen Island, June 4, 1900. In the absence of material for comparison I am unable to determine the species. The genus is new to the islands. ARCTOGALIDIA INORNATA sp. nov. Type. — Adult- male (skin and skull) No. 104859 U. S. National Museum. Collected on Bunguran Island, North Natunas, June 23, 1900. Original nuinber 502. Characters. — Much smaller than Arctogalidia leucotis from the Malay Peninsula or A. stigmatica from Borneo (greatest length of skull about 100 instead of 115) and in color paler than either, the dark dorsal stripes obsolete in adult. Color. — General color of back and sides light silvery gray irregu- larly suffused with buff and slightly darkened by blackish hair-tips and by appearance at surface of hair-brown basal portion of fur. The buff suffusion is least noticeable on back, slightly more apparent on sides and flanks, and most evident on sides of neck, where it usually brightens almost to buff-yellow in distinct contrast with surrounding parts. On middle of back there is a trace of the middle dark stripe of the three normally present in members of the genus. Head essen- tially like back though somewhat more gray. Muzzle and ill-defined ' Measurements in parentheses are those of the type of Ratufa 7nelanopepia. 2 Teeth very much worn and many of them absent. 132 MILLER eye ring blackish. Cheeks and short median stripe on forehead dull whitish gray. Under parts essentially like back, but buff tinge more diffuse. Feet and ears dark brown. Tail like back but darken- ing to uniform brown beyond middle. Newly born young are clear bluish gray, with scarcely a tinge of buff. The three black dorsal stripes are clearly defined and normal in extent. Skull. — In addition to its smaller size the skull differs from that of the Bornean Arctogalidia stigmatica in the relatively larger brain- case, and less prominent audital bullae. The braincase is nearly as broad as in the Bornean species, but the zygomatic width is distinctly less. Audital bullae less raised above level of basi-occipital when skull is held upside down and viewed from behind. The sagittal crest, though of normal development in very old individuals, is absent at an age when it is well grown in the larger species. In Arctogalidia leucotis and A. stigmatica^ even in animals so young that the teeth are un- worn and all the sutures of the rostrum plainly visible, the sagittal crest is a knife-like ridge extending from proencephalon to lambdoid suture, and rising to a height of about 4 mm. over middle of brain- case. In much older individuals of A. inorjtata^ with worn teeth and nearly obliterated rostral sutures, the crest is represented by a low ridge about 5 mm. wide over middle of braincase and flat or grooved on top. At this stage it rises very inconspicuously above level of the adjacent surface, from which it is distinguished more by the texture of the bone than by actual form. Teeth. — The teeth are uniformly inuch smaller than in Arctogalidia leucotis and A. stigmatica.^ but I can detect no important differences in form. Measurements. — External measurements of type : total length 1027 ; head and body 469 ; tail vertebrae 558 ; hind foot 78 (73.) Ex- ternal measurements of an adult female: total length 911 ; head and body 431 ; tail vertebras 480; hind foot 77 (72). Cranial measurements of type: greatest length 102 (115);^ basal length 96 (io6) ; basilar length 92 (103) ; median palatal length 53 (60) ; palatal breadth between anterior molars 13 (15.4) ; zygomatic breadth 55 (60) ; breadth between tips of postorbital processes 41 (39) ; constriction in front of postorbital processes 19 (18) ; constriction behind postorbital processes 13 (12) ; breadth of braincase above roots of zygomata 32 (33) ; mastoid breadth 36 (38) ; mandible 76 ^Measurements in pa:-entheses are those of a young adult A. stigmatica from British North Borneo. MAMMALS OF THE NATUNA ISLANDS I33 (86); maxillary toothrow (exclusive of incisors) 34^ (41)) mandib- ular toothrow (exclusive of incisors) 39 (44) ; crown of first upper molar 5.4 x 5 (5.4 X5.6) ; crown of second upper molar 4x5 (5.4 X 6.4) ; crown of second lower molar 7 x 4.2 (8.4 x 5.4). Specimens examined. — Seven (two young in alcohol and one skull without skin) , all from the type locality. Remarks. — Arctogalidia inornata is so distinct from the previously described species as to require no special comparisons. It is common on Bunguran where it frequents the cocoanut trees, living for the most part in the tops among the leaf stalks. VIVERRA TANGALUNGA Gray. 1895. Viverra tangalunga Thomas and Hartert, Novitates Zoologicse, 11, p. 490. December, 1895 (Bunguran). Nine specimens from Bunguran. These agree in all respects with the Bornean animal. TUPAIA SPLENDIDULA Gray. 1894. Tupaia splendidida Thomas and Hartert, Novitates Zoologicae, I, p. 656. September, 1894 (Bunguran). 1893. Tupaia sple^ididula typica Thomas and Hartert, Novitates Zoologi- cee, II, p. 489. December, 1895 (Bunguran). Two specimens from Bunguran. TUPAIA LUCIDA (Thomas and Hartert). 1895. Tupaia splendtdula lucida Thomas and Hartert, Novitates Zoo- logics, II, p. 490. December, 1895 (Pulo Laut). Seven specimens (two in alcohol) from Pulo Laut. TUPAIA SIRHASSENENSIS sp. nov. 1894. Tupaia tana Thomas and Hartert, Novitates Zoologicse, i, p. 657, September, 1894 (Sirhassen). lype. — Adult male (skin and skull) No. 1047 12 U. S. National Museum. Collected on Sirhassen Island, South Natunas, June 5, 1900. Original number 442. Characters. — In general similar to Bornean specimens of lupaia tana., but smaller (hind foot 47 instead of 52, greatest length of skull 55 instead of 60), gray markings on head and shoulders less distinct, and red of tail brighter. Rostral portion of skull less attenuate than in lupaia tana. Color. — The color so exactly resembles that of the common Bornean Tupaia tana as to need no detailed description. Gray of head darker ^ Tooth measurements are from a younger specimen (male) with perfect denti- tion. 134 MILLER than in the Bornean animal and light shoulder markings less distinct and sharply defined. Under side of tail light orange-rufous, darkening to ferruginous toward edge. (In T. tatia these colors are replaced by dull ferruginous and hazel respectively.) Sktill and teeth. — The skull is throughout much smaller than in specimens of Tupaia tana from Borneo. In form it differs from that of 1 . tana in less slender and elongate rostrum, narrower brain- case and slightly shorter audital bullae. Suborbital vacuity much broader than in T. tana. Teeth as in the Bornean animal. Measurements. — External measurements of type : Total length 355 ; head and body 203 ; tail vertebrae 152 ; hind foot 46.4 (44). Average and extremes of four adults from the type locality : total length 367 (365-371) ; head and body 203; tail vertebrae 163 (162-16S) ; hind foot 45.4 (44-46.6); hind foot without claws 42.5 (41-44). Cranial measurements of type: greatest length 54.6 (61);' basal length 49 (54) ; basilar length 46.4 (51) ; median palatal length 48 (53) ; distance from lachrymal notch to tip of premaxillary 27.6 (31) ; least interorbital breadth 14.4 (16) ; zygomatic breadth 25 (28.4) ; mandible 38 (41) ; maxillary toothrow (behind diastema) 20 (21.4) ; mandibular toothrow (behind diastema) 17 (18). Specimens examined. — Five, all from the type locality. GALEOPITHECUS VOLANS (Linnaeus). 1894. Galeopiihecus 7wlans Thomas and Hartert, Novitates Zoologicae, i, p. 657. September, 1894 (Bunguran and Sirhassen). Two specimens from Sirhassen and two (one yovmg in alcohol), from Bunguran. Also foetus of one of the Sirhassen specimens. EMBALLONURA ANAMBENSIS Miller. Four specimens from Bunguran. These agree essentially with the Anamba animal, but show some slight cranial peculiarities. PIPISTRELLUS SUBULIDENS sp. nov. Type. — Adult female (in alcohol) No. 104758 U. S. National Museum. Collected on Sirhassen Island, South Natunas, June 3, 1900. Characters. — Similar to Pipistrellus pipistrellus (Schreber) in size, color and external form, but skull with broader rostrum, and inner upper incisor without supplemental cusp. 'Measurements in parentheses are those of an adult male Bornean Ttipaia ta7ia. MAMMALS OF THE NATUNA ISLANDS I35 Skull. — The skull is of the same size as that of Pipistrellus pipis' trellus., but the braincase is narrower and more elongate, and the ros- trum is very markedly shorter and broader. The great breadth of the anterior portion of the skull involves also the palate and interpterygoid space, both of which are noticeably wider than in Pipistrellus pipis- trellus. Audital bullae slightly smaller than in the European species. 7 eeth. — The teeth are essentially as in Pipistrellus pipistrellus., except that the inner upper incisor lacks the small supplemental cusp. Mandibular teeth wider than those of P. pipistrellus. Measurements. — External measurements of type : total length 76 ; head and body 41 ; tail 33; tibia 14; foot 6; calcar 10; forearm 32.4; thumb 6; second digit 30; third digit 60; fourth digit 53; fifth digit 43 ; ear from meatus 1 1 ; ear from crown 9 ; width of ear 9.6 ; tragus (measured in front) 4. Ci'anial measurements of type: greatest length 12.4 (12);^ basal length 1 1.8 (11. 6) ; basilar length 9 (9) ; zygomatic breadth 8.4 (8) ; least interorbital breadth 3.2 (3.2) ; greatest length of braincase 8 (7.6) ; greatest breadth of braincase above roots of zygomata 6.6 {^^.^) ; mandible 8.8 (8.4) ; maxillary toothrow (exclusive of incisors) 4.2 (4.2) ; mandibular toothrow (exclusive of incisors) 4.8 (4.8). Specimens examined. — Six (in alcohol), all from the type locality. Remarks. — I am unable to identify this bat with any described species. Externally it is practically identical with Pipistrellus fipistrellus except that the color, so far as can be judged from speci- mens preserved in alcohol, is more blackish. Internally it is readily distinguished by the characters of the skull and teeth. From Pipis- trellus abramus it differs externally in smaller size, narrower ears, and in the absence of any unusual development of the penis. The incisors differ from those of P. abramus in the same manner as from those of P. pipistrellus. HIPPOSIDEROS LARVATUS (Horsfield). Two specimens (one in alcohol) were collected on Sirhassen Island, June 6 and 7, 1900. RHINOLOPHUS AFFINIS (Horsfield). One badly damaged specimen from Bunguran appears to be refer- able to typical Rhinolophus aff,ms. The forearm cannot be meas- ured, but the third finger is 75 mm. in length. Tibia 21, foot 10.4, 1 Measurements in parentheses are those of an adult skull of Pipistrellus pipistrellus from Switzerland. 136 MILLER ear from meatus 21. Ridge on muzzle beneath edge of nose leaf low, broad and hairy, not in the least suggesting a supplementary leaflet. RHINOLOPHUS SPADIX sp. nov. 1894. Rhinolophus affinis Thomas and Hartert, Novitates Zoologicae, 11, p. 656. December, 1895 (Sirhassen). Type. — Adult female (in alcohol) No. 104752 U. S. National Museum. Collected on Sirhassen Island, South Natunas, June, 1900. Characters. — In general like Rkifiolophtis ajffinis but much smaller. Color uniform tawny brown. Muzzle with distinct supplemental leaflets. Muzzle. — Muzzle and noseleaf precisely as in Rhinolophus affinis^ except that the ridge on muzzle beneath edge of horseshoe is de- veloped into a distinct supplemental leaflet resembling those present in Hipposideros. In this respect Rhinolophus spadix resembles the animal from Burmah referred by Thomas to Rhitiolophus rouxii ; ^ but the terminal erect portion of the noseleaf is not shortened or in any way peculiar in form. Ears. — The ears resemble those of Rhinolophus affinis^ except that they are not as large. Color. — Fur everywhere russet, slightly paler on ventral surface, darker and somewhat tinged with hazel above. Ears and membranes dark brown. Skull and teeth. — The skull and teeth exactly resemble those of mainland specimens of Rhinolophus affinis except for their uniformly smaller size. Measurements. — External measurements of type : total length, 70 (85''') ; tail 21 (23) ; tibia 17.6 (24) ; foot 8 (10) ; calcar 12 (13) ; forearm 43 (51) ; thumb 8 (8.6) ; second digit 32 (40) ; third digit 64 (77) ; fourth digit 53 (61) ; fifth digit 54 (63) ; ear from meatus 17 (20) ; ear from crown 14 (17) ; length of noseleaf from lip 13 (16) ; greatest width of noseleaf 8 (9). Cranial measurements of type : greatest length 18 ( 23 ) ; basal length 16 (20.4) ; basilar length 14.6 (18) ; zygomatic breadth 9 (ii) ; least interorbital breadth 2.4 (2.4) ; greatest length of braincase 10.4 (13) ; greatest breadth of braincase above roots of zygomata 8 (9.4) ; frontopalatal depth (at middle of molar series) 4 (4.8) ; depth of braincase 6 (7) ; mandible 11.8 (15) ; maxillary toothrow (exclusive 'Ann. Mus. Civ. di Storia Nat. di Geneva, Ser. 2, x, p. 923, p1. xi, 1892. ^ Measurements in parentheses are those of an adult female Rhitiolophus affinis from Trong, Lower Siam. MAMMALS OF THE NATUNA ISLANDS I37 of incisor) 6.8 (9) ; mandibular toothrow (exclusive of incisors) 7 (9-8). ^ Specimens examined. — Three (one skin), all from the type locality. Remarks. — Rhinolophus spadix is so readily distinguished from its relatives of the R. affinis group that it needs no special comparisons. It is a much smaller animal than the species from the Anambas that I recently referred to R. rouxii.^ In color the latter is a dull brown not in the least resembling the russet of R. spadix. CYNOPTERUS MONTANOI Robin. 1 894. Cynopterus marginatus Thomas and Hartert, Novitates Zoologicae, i , p. 655. September, 1894 (Sirhassen and Bunguran). 1899. Cynopterus montanoi Matschie, Die Fledermause des Berliner Mu- seums fiir Naturkunde, p. 75. August, 1899. (Natuna record of C. marginatus placed in synonymy of C. montanoi.') Five specimens (three skins) from Sirhassen. These agree so closely with a skin and two bleached alcoholic specimens from Sing- apore, which I suppose to be the same as the Malaccan Cynopterus montaftoi., that without more material it is impossible to distinguish the Natuna animal from that of the southern extremity of the Malay Peninsula. Cynopterus montanoi as thus understood differs from C. angulatus Miller^ of Lower Siam in its more slender skull and in the absence of the white border of the ear, and from C. titthcecheilus (Temminck) of Sumatra and Java in its conspicuously smaller size. PTEROPUS VAMPYRUS (Linnjeus). 1894. Pteropus va7npyrus Thomas and Hartert, Novitates Zoologicas, i, p. 655. September, 1894 (Bunguran). 1895. Pteropus vatHpynis Thomas and Hartert, Novitates Zoologicce, 11, p. 489. December, 1895 (Bunguran). Six skins from Bunguran. .? PTEROPUS HYPOMELANUS Temminck. 1894. Pteropus hyponielatius Thomas and Hartert, Novitates Zoologicae, I, p. 655. September, 1894 (Sirhassen). 1895. Pteropus hypomelayius Thomas and Hartert, Novitates Zoologicae, II, p. 489. December, 1895 (Pulo Pandak, Pulo Panjang and Pulo Laut). Eight (one in alcohol) from Sirhassen and seven (one in alcohol) Pulo Laut. It is highly probable that these specimens represent a species distinct from the true Pteropus hypo7nelanus of Ternate. ^ Proc. Washington Acad. Sci., 11, p. 234. August 20, 1900. 2 Free. Acad. Nat. Sci. Philadelphia, 1898, p. 316. July, 1898. 138 MILLER NYCTICEBUS TARDIGRADUS (Linnsus). 1894. Nycticebus tardigradus Thomas and Hartert, Novitates Zoologicae, I, p. 655. September, 1894 (Bunguran). 1895. Nycticebus tardigradus Thomas and Hartert, Novitates Zoologicse, II, p. 489 (Bunguran). One specimen from Bunguran. MACACUS 'CYNOMOLGUS' Auct. 1894. Macacus cynomolgus Thomas and Hartert, Novitates Zoologicae, i, p. 654. September, 1894 (Bunguran). 1895. Macactis cyiiotnolgus Thomas and Hartert, Novitates Zoologicae, II, p. 489. December, 1895 (Bunguran). A specimen from each of the following islands : Sirhassen, Pulo Lingung and Pulo Laut. SEMNOPITHECUS CRISTATUS (Raffles). Two monkeys from Sirhassen appear to be referable to this species. SEMNOPITHECUS NATUN^ Thomas and Hartert. 1894. Semnopithecus natuncB Thomas and Hartert, Novitates Zoologicae, I, p. 652. September, 1894 (Bunguran). 1895. Semnopithectts natuncc Thomas and Hartert, Novitates Zoologicae, II, p. 489. (Bunguran.) Ten specimens from Bunguran. PROCEEDINQS OF THE WASHINGTON ACADEMY OF SCIENCES Vol. Ill, pp. 139-147. April 15, 1901. RESULTS OF THE BRANNER-AGASSIZ EXPEDITION TO BRAZIL. V. MOLLUSKS FROM THE VICINITY OF PERNAMBUCO. By William Healey Dall. Honorary Curator, Department of Mollusks, U. S. National Museum. During Dr. J. C. Branner's expedition for the study of the coast reefs of Northeastern Brazil collections of various inver- tebrates were made. As this region is seldom visited by natu- ralists and is important in the study of the geographical distri- bution of the mollusks of the Western Atlantic, Dr. Branner requested me to report on that part of the collection. Both Dr. Pilsbry and myself in listing collections of shells from the Brazilian and Uruguayan coasts have been struck with the predominant Antillean element among the mollusks, and it seems as if the present distribution of littoral species must have been largely brought about before the discharge of the Amazonian watershed attained its present volume, since it is difficult to imagine exclusively shore species passing the barrier of several hundred miles of fresh water which intervenes be- tween the present northern and southern strips of coast un- affected by this mighty flood. The present collection confirms the view previously taken of the very large Antillean element in the fauna. Ninety-one species in all were obtained ; deduct- Proc. Wash. Acad. Sci., April, igoi. (139) 140 DALL ing from them four confined to land or fresh water, there re- main eighty-seven, of which thirteen alone are peculiar to the eastern coast of South America south of the West Indies, and seventy-four are common Antillean shells. Two appeared to be undescribed, and one, a very young Octopus, was too imma- ture for identification. This would leave eight-ninths of the species in common with the fauna of the Antilles. A large proportion of these extend at least as far southward as Monte- video, and the southern limit of the Antillean fauna may be re- garded as situated in that vicinity. Most of Dr. Branner's shells were obtained from the vicinity of Pernambuco, collections were made from the existing coral reefs, the limestone reefs of doubtful age which exist along this coast, and to some extent from the sand beaches behind the reefs. The collection was not large enough to indicate whether the fauna of the stone reefs and that of the coral reefs differ, but in all probability they do not. The localities from which mollusks were obtained are as fol- lows : Pernambuco and Tacuara near by. Maceio ; on granite bowlders, sand beach and reefs, latitude 9° 40' S. Boa Viagem ; stone reef. Cotonello Bay. Managuas and Mangosoules on the Rio Parahyba do Norte, Cabedello ; mangrove swamps. Mamanguape; stone reef, latitude 6° 58' S. Rio Goyanna ; stone reef off the mouth of the river, latitude 6°33'S. Among the local species Valuta hehrcea and Ttirbinella ovoidea appeared to be common, and Fasciolaria aurantiaca abundant. No peculiarity of texture or aspect which could be regarded as general differentiates the Antillean species of Brazil from the individuals of the same species found in the West Indies, the only approximation to such a feature being the gray color of the specimens of Trivia pedictilus which I have not observed in any of our very numerous series of that species from the West Indies and Florida. MOLLUSKS FROM THE VICINITY OF PERNAMBUCO I4I LIST OF THE SPECIES OBTAINED. Ostrea puelchana d'Orbigny. Mangosoules, Managuas and Macelo. Ostrea equestris Say. Managuas ; attached to the shells of Cerithium algicola. Spondylus echinatus Marty n. Mamanguape ; a single young valve. Lima inflata Lamarck. Maceio. Margaritifera radiata Leach. Goyanna ; a single young valve. Mytilus exustus Linne. Maceio ; young shell from oysters. Mytilus exiguus Dunker. Mamanguape ; young shells. Modiolus (Gregariella) coralliophagus Gmelin. A single specimen at Cotonello Bay and another from a rock reef at Goyanna. This form is remarkable for the series of four or five sharp conical teeth on the hinge on each side of the largely internal ligament. These teeth are below the line of the marginal serrations. The exterior of the shell is covered with a concretionary layer which completely hides the posterior part of the valves and must act as a sort of oper- culum closing the entrance of its burrow against enemies and protect- ing the mollusk. This layer, like that on Diberus^ must be partly due to the animal itself. Lithophaga (Diberus) antillarum d'Orbigny. Mamanguape, Maceio, Goyanna and Pernambuco ; in coral. Lithophaga nigra d'Orbigny. Boa Viagem ; one specimen. Area umbonata Lamarck. Common on the reefs at Goyanna, Mamanguape, Pernambuco, Maceio and Boa Viagem. Area Adamsi (Shuttleworth) Smith. Maceio, Mamanguape and Goyanna. Area (Seapharca) Deshayesii Hanley. Pernambuco ; one valve. Area (Cunearea) brasiliana Lamarck. Mamanguape ; one valve. Phaeoides pectinatus Gmelin. Mangosoules. 142 DALL Codakia orbicularis Linne. Maceio. Divaricella quadrisulcata d'Orbigny. Tacuara, Pernambuco. Cardium muricatum Linne. Pernambuco. Venus (Chione) cancellata Linne. Goyanna. Venus (Anomalocardia) flexuosa Linne. Mangosoules. Tivela mactroides Born. Mamanguape. Petricola typica Jonas. Maceio, Pernambuco and Boa Viagem ; in coral. Sanguinolaria sanguinolenta Gmelin. Mamanguape. Tellina lineata Turton. Mangosoules and Maceio. Semele proficua Pulteney. Managuas. Mactrella alata Spengler. Mamanguape. Mulinia Branneri Dall, n. sp. Mamanguape. Gastxochaena ovata Sowerby. Goyanna ; burrowing in stone. Martesia clavata Lamarck. Goyanna. Discinisca antillarum d'Orbigny. Goyanna ; on the reef. Strophocheilus pudicus Miiller. Mamanguape. Oxystyla pulchella Spix. Pernambuco. Planorbis helopilus d'Orbigny. Pernambuco. Bulla striata Bruguiere. Mangosoules, Managuas and Maceio. Micromelo undata Biuguiere. Goyanna ; on the reef. Terebra cinerea Born. Goyanna, Maceio, and Boa Viagem. MOLLUSKS FROM THE VICINITY OF PERNAMBUCO 1 43 Drillia Greeleyi Dall, n. sp. Goyanna ; on the reef. Voluta hebraea Linne. Pernambuco and Maceio ; common. Turbinella ovoidea Kiener. Pernambuco, Managuas and Maceio. Fasciolaria aurantiaca Lamarck. Maceio, Pernambuco and Managuas. Melongena mono Linne. Mangosoules, Managuas and Maceio. Latinis (Leucozonia) cingulifera Lamarck. Pernambuco, Maceio and Goyanna ; common. Latirus (Leucozonia) ocellata Lamarck. Pernambuco, Maceio and Goyanna ; common. Tritonidea auritula Link. Pernambuco, Maceio, Mamanguape and Goyanna. Pisania janeirensis d'Orbigny. Maceio ; on the reef. Nassa vibex Say. Rio Parahyba and Boa Viagem. Anachis lyrata Sowerby. Pernambuco, Boa Viagem and Cotonello Bay. Columbella mercatoria Lamarck. Maceio, and on the reef at Boa Viagem. Murex brevifrons Lamarck. Mangosoules and Managuas ; young shells. Purpura deltoidea Lamarck. Pernambuco and Maceio. Purpura (var. ?) trinitatensis Guppy. Mamanguape, Mangosoules, Managuas, Maceio, Goyanna and Per- nambuco ; common. Coralliophila galea Gmelin. Maceio ; very variable. Janthina communis Lamarck. Mamanguape. Distortrix reticulata Link. Mangosoules. Gyrineum ponderosum Reeve. Maceio. This may prove but one of the varieties of Ranella affinis Broderip, but the subdivisions by sculpture are convenient. Lampusia pilearis Lamarck. Goyanna. 144 DALL Lampusia chlorostoma Lamarck. Maceio ; young, on the reef. Cassis tuberosa Linne. Maceio. Cassis flammea Linne. Maceio. Cassis inflata Shaw. Mamanguape. Dolium perdix Lamarck. Maceio. Dolium olearium Lamarck. Maceio. Cypraea exanthema Linne. Maceio and Mamanguape. Cypraea spurca Linne. Mamanguape. Trivia pediculus Linne. Maceio and Boa Viagem. A dark gi-ay form with the usual dark spots, but no suggestion of pink coloration. Cerithium algicola C. B. Adams. Mangosoules, Managuas, Mamanguape, and Maceio ; common. Cerithium thomasiae Sowerby. Maceio and Goyanna. Probably a variety of algicola with de- pauperate sculpture. Melaraphe nebulosa Lamarck. Rio Parahyba, Mangosoules and Managuas, on shrubs near the water ; Maceio, on granite bowlders on the shore. Melaraphe columellaris d'Orbigny. Maceio ; on granite bowlders. Melaraphe columellaris \sa-.Jlava Broderip. Rio Parahyba. Ampullaria zonata Spix. Managuas, and Traicao on the Mamanguape River. Amalthea antiquata Linne. Maceio. Amalthea subrufa Carpenter. Boa Viagem. Polynices mamillaris Linn6. Mamanguape and Maceio. Polynices porcellana d'Orbigny. Maceio. MOLLUSKS FROM THE VICINITY OF PERNAMBUCO I45 Natica canrena Lamarck. Managuas. Natica livida Pfeiffer. Rio Parahyba, Mangosoules and Maceio ; on sand beaches. Natica marochiensis Gmelin. Mamanguape, Mangosoules and Managuas. Acmaea onychina Gould. Mamanguape and Goyanna. Turbo Spenglerianus Gmelin. Managuas. Astralium latispina Philippi. Mangosoules, Rio Parahyba and Managuas. Astralium imbricatum Gmelin. Mamanguape and Maceio ; common. Astralium armatum Philippi. Goyanna. Omphalius viridulus Gmelin. Mamanguape, Maceio, Goyanna and Pernambuco ; common. Neritina virginea Lamarck. Rio Parahyba, Managuas, Mangosoules, and Goyanna. The| shells are usually smaller than those found in the Antilles but pass through the same multitude of color variations. Subemarginula octoradiata Gmelin. Maceio. Fissurella rosea Gmelin. Mamanguape, Maceio and Goyanna. Fissuridea alternata Say. Maceio and Goyanna. Fissuridea Listeri d'Orbigny. Maceio ; one young shell. Ischnochiton squamulosus C. B, Adams. Maceio ; one young specimen. Octopus sp. indet. One very yovmg specimen from the reefs. DESCRIPTION OF THE NEW SPECIES. Mulinia Branneri Dall. Shell small, solid, elevated., short, subtriangular, white under a pale brownish periostracum ; beaks high, full, subcarinate behind ; an ob- scure impressed line in front proceeding from the beaks delimits a Proc. Wash. Acad. Sci., April, 1901. I/j.6 DALL lanceolate area simulating a lunule ; a similar line on the opposite slope within the carina marks a smaller area which may be compared to an escutcheon ; the space between this line and the carina which extends from the beaks to the lower posterior angle of the valves, has the periostracum exceptionally rugose ; and on the carina itself this feature is elevated into a low keel which disappears in drying ; the periostra- cum is concentrically wrinkled and even lamellose toward the margin, with irregular small radial wrinkling; the valves are polished beneath the periostracum, practically smooth, and nearly equilateral, rounded in front, arcuate below and bluntly pointed behind ; the hinge is normal and strong, the pallial impression broad and indented by a narrow linguiform sinus reaching nearly to the vertical of the beaks. Lon. of shell 22.5, alt. 18.5, diam. 13.5 mm. This neat little species is perhaps the same as the " Mulinia near lateralis Say " mentioned in Pilsbry's list of the shells obtained by Dr. Rush at Maldonado Bay, Uruguay (Nautilus, xi, p. 8, May, 1897). It is larger and less rostrate than any specimens of AI. lateralis I have seen. The nearest relative I have noticed in the American series of this group is Alulinia portoricensis Shuttleworth, which is pretty close to the present species, though more produced at the ends, and much more rostrate than J/. Branneri. The latter is named in honor of Dr. J. C. Branner of Stanford University to whom the formation of the collection is due. Drillia Greeleyi Dall. Shell small, stout, solid, acute with eight or nine whorls ; nucleus small, smooth, dark reddish purple with two whorls followed by a third with strong arcuate ribs concave anteriorly, and which at the end of the whorl are replaced by transverse nodules separated from the suture behind by a revolving ridge ; the last whorl has twelve or thirteen narrow transverse ribs, extending forward from the anal fasciole ; be- hind the fasciole a stout ridge revolves a little in advance of the ap- pressed edge of the whorl, the ridge is nodulous where it rides over the ribs of the preceding whorl ; in front of the fasciole the ribs are crossed by two adjacent and four rather distant stout revolving threads, beside which there are four or five smaller threads on the canal, and in the interstices and on the fasciole extremely fine sharp revolving threads ; all the large threads form nodules where they cross the ribs and these nodules are yellow, the shell elsewhere being dark reddish, nearly black ; the last whorl is more than half the shell ; the aperture narrow and dark. Lon. 10.5, max. diam. 4.5 mm. MOLLUSKS FROM THE VICINITY OF PERNAMBUCO I47 This neat shell is not quite mature and its aperture in the adult state cannot be described, but is undoubtedly normal. The species belongs in the section Crassispira near such species as D. albinodata Reeve, but differs in details of sculpture as described from all those with which I have compared it. It is named in honor of Mr. A. W. Greeley who, under the direction of Dr. Branner, collected it and nearly all the speci- mens mentioned in this paper. PROCEEDINGS OF THE WASHINGTON ACADEMY OF SCIENCES Vol. Ill, pp. 149-155. April 15, 1901. NEW BIRDS OF THE FAMILIES TANAGRID^ AND ICTERID^. BY Robert Ridgway. Curator Division of Birds, U. S. National Museum. This is one of a series of papers comprising advance de- scriptions of new birds, prepared by the author in connection with his forthcoming work on the Birds of North and Middle America. Six papers of this series describing new forms in the families Fringillidas and Corvidae, have appeared in the Auk, Vols. XV (1898) to XVII (1900). TANAGRID^. Calospiza florida arcaei. Arce's Calliste. Similar to Calospiza Jlorida Jlorida but smaller, the general color more yellowish green ; adult male without a distinct, if any, occipital patch of yellow. Veragua. Type., no. 146386, U. S. National Museum, $ adult, Veragua; E. Arce. Piranga roseo-gularis cozumelae. Cozumel Tanager. Similar to Piranga roseo-gularis roseo-gularis but red of pileum duller, wing averaging shorter and tail longer. Island of Cozumel, Yucatan. Type., no. 102689, U. S. National Museum, $ ad., Cozumel I., Yucatan, Jan. 29, 1885 ; J. E. Benedict and T. Lee. 150 RIDGWAY Ramphocelus dimidiatus isthmicus. McLeannan's Tanager. Similar to Ra?nphocelus dimidiatus di?nidiatiis, but colors duller, the abdomen brownish black or dark brown instead of deep black and tail longer. Isthmus of Panama. Type, no. 16883, U. S. National Museum, $ ad., Frijole Station, Panama R. R. ; J. McLeannan. Phoenicothraupis salvini peninsularis. Yucatan Tanager. Similar to Phoenicothraupis salvini insularis^ but darker and less grayish, though much paler and grayer than P. salvi?zi salvifii. Yucatan (mainland). Type, no. 146607, U. S. National Museum, $ ad., Izalam, Yuca- tan, 1880; Geo. F, Gaumer. Phcenicothraupis salvini discolor. Escondido Tanager. Similar to Phcenicothraupis salvini salvini, but adult male much darker and less brightly colored, the back, etc., dull reddish brown, the under parts of body strongly tinged with grayish. (Nearly intermedi- ate in coloration between P. salvini salvini and P. fuscicauda, but female and young not at all like those of the latter.) Southern Honduras to eastern Nicaragua. Type, no. 126942, U. S. National Museum, $ ad., Rio Escondido, eastern Nicaragua, May 12, 1892; Chas. W. Richmond. Chlorospingus sumichrasti. Sumichrast's Chlorospingus. Similar to C. ophthabnicus, but pileum lighter and clearer brown, back more brownish olive-green, and chest paler and duller yellowish olive. Mountains of Vera Cruz, southeastern Mexico. Type, no. 3751 1, U. S. National Museum, Mt. Azul, near Orizaba, Vera Cruz, October, 1864, Professor F. Sumichrast. Genus Iridophanes. (Type, Dacnis pulcherrima Sclater.) Similar to Tatiagrella, Swainson, but nasal fossae mostly unfeath- ered, bill more slender (though relatively broader basally), and four outermost primaries (sixth to ninth) more nearly equal in length. Although this form has usually been considered a member of a Coerebine genus {Dacnis) I am inclined to believe that its relationships are in reality Tanagrine, as has already been suggested by DuBus, ac- cording to Dr. Sclater.^ ^Cat. Birds Brit. Mus., Vol. xi, 1886, p. 25. BIRDS OF THE FAMILIES TANAGRID^ AND ICTERID^ I5I ICTERIDiE. Zarhynchus wagleri mexicanus. Mexican Oropendola, Similar to Zarhyfichus wagleri wagleri^ but slightly smaller, es- pecially the bill, with frontal shield narrower and less arched ; chest- nut of head and neck slightly, that of rump and flanks decidedly, darker ; black of breast and abdomen more restricted, duller, less glossy. Southern Mexico to Guatemala; British Honduras? Honduras? Type, no. 14456 1, U. S. National Museum (Biol. Surv. Coll. no. 1755), S ad., Motzorongo, Vera Cruz, Mexico, Feb. 26, 1894 ; Nelson and Goldman. Holoquiscalus martinicensis. Martinique Grackle. Similar to Holoquiscalus inflexirostris, of Santa Lucia, but smaller, and with stouter bill ; adult female with head and under parts paler, the chin and throat nearly white. (The adult female similar in coloration to that of Holoquiscalus guadeloupensis, but smaller and with more slender bill.) Island of Martinique, Lesser Antilles. Type, no. 75156, U. S. National Museum, ^ad., Martinique; F. A. Ober. The forms belonging to this group, as I have been able to make them out, are as follows : (i) Holoquiscalus gundlachii (Cassin) ; Cuba. (2) Holoquiscalus jamaicensis (Daudin) ; Jamaica. (3) Holoquiscalus niger (Boddaert) ; Haiti. (4) Holoquiscalus brachypterus (Cassin) ; Puerto Rico. (5) Holoquiscalus caymanensis (Cory) ; Grand Cayman. (6) Holoquiscalus luminosus (Lawrence) ; Grenada. (7) Holoquiscalus inflexirostris (Swainson) ; Santa Lucia. (8) Holoquiscalus guadeloupensis (Lawrence) ; Guadeloupe. (9) Holoquiscalus martinicensis (Ridgway) ; Martinique. (10) Holoquiscalus insularis (Richmond) ; Margarita I., Venezuela. (11) Holoquiscalus lugubris (Swainson); Trinidad, Tobago, and adjacent mainland. (12) Holoquiscalus rectirostris (Cassin) ; (habitat unknown). (13) Holoquiscalus fortirostris (Lawrence) ; Barbados. Scaphidunis major nelsoni. Sonoran Boat-tail.' '^ Scaphidurus Swainsox, Philos. Mag., new series, i, 1827, p. 437. Type, S palustris Swainson . 152 RIDGWAY Similar to Scaphidurus major graysoni but slightly smaller, with slightly longer bill ; adult female much paler, the under parts (in winter plumage) light wood brown, passing into brownish cream-buff on throat and chin, into grayish brown on flanks, thighs and anal region, the under tail-covei'ts dark grayish brown, pileum and hindneck light sepia-brown, the scapulars and interscapulars margined with the same. Coast district of Sonora, northwestern Mexico. Type, no. 164596, U. S. National Museum (Biol. Surv. Coll., no. 6140), 9 ad., Alamos, Sonora, Jan. 37, 1S99; E. A. Goldman. The known forms belonging to this genus are, according to my recent revision of the group, as follows : (i) Scaphidurus major major (Vieillot) ; South Atlantic and Gulf Coast United States. (2) Scaphidurus major macrourus (Swainson) ; southern Texas to northern Columbia. (3) Scaphidurus major obscurus (Nelson) ; southwestern Mexico. (4) Scaphidurus major graysoni (Sclater) ; western Mexico. (5) Scaphidurus major nelsoni Ridgway ; northwestern Mexico. (6) Scaphidurus major assimilis (Sclater) ; central Colombia. (7) Scaphidurus tenuirostris (Swainson) ; central Mexico. (8) Scaphidurus nicaraguensis (Salvin & Godman) ; Nicaragua. Icterus cucullatus sennetti. Sennett's Oriole. Similar to Icterus cucullatus czicullatus (Swainson) but paler in color ; adult male less decidedly orange, the color of pileum, chest, etc., deep cadmium yellow, never cadmium orange; adult female much paler than that of /. c. cticullatus, the yellow of under parts dull or pale gamboge, instead of saffron or ochreous, the back and scapulars lighter grayish. Lower Rio Grande Valley, in Texas and Tamaulipas ; south in winter to Morelos. Type, no. 73654, U. S. National Museum, $ ad., Brownsville, Texas, April 3, 1877; Geo. B. Sennett. Icterus gularis tamaulipensis. Alta Mira Oriole. Similar to Icteriis gularis gularis (Wagler) but decidedly smaller and coloration more intense, the orange-yellow more decidedly orange (usually rich cadmium orange) ; black at anterior extremity of malar region broader ; bill shorter and deeper at base. Similar to Icterus gularis yucatane?tsis, Berlepsch, but larger, usually less intense in color, and with the maxilla relatively much narrower. BIRDS OF THE FAMILIES TANAGRID^ AND ICTERID^ I53 Eastern Mexico, in states of Tamaulipas, Vera Cruz, San Luis Potosi, and Puebla. Type^ no. 135 168, U. S. National Museum, $ ad., Alta Mira, Tamaulipas, E. Mexico, Oct. 17, 1S94; F. B. Armstrong. Icterus mesomelas taczanowskii. Taczanowski's Oriole. Similar to Icterus inesomelas mesomelas (Wagler), but slightly smaller and with black at base of inner webs of lateral rectrices more restricted, less intense, and less sharply defined. Western Ecuador; Central Peru? Geographic range widely separated from that of /. m. mesomelas by the intervening much larger black-winged Central American form. Icterus meso?nelas salvinii (Cassin). lype^ no. 101265, U. S. National Museum, adult (^ ?), Guaya- quil, Ecuador, 1884; Dr. Wm. H. Jones, U. S. N. Agelaius phoeniceus fortis. Thick-billed Red-wing. Similar to Agelaius phoeniceus phoeniceus^ but decidedly larger, with bill relatively much shorter and thicker ; adult females, adult male in winter, and immature males similar in coloration to the same oi A. p. sonoriensis, but distinguished by very different measurements. Breeding range unknown, but evidently somewhere in the central portion of North America ; during migrations occurring in Manitoba, Minnesota, Nebraska, Indian Territory, Illinois (i^arely or casually), and westward to and including the Rocky Mountains and southward to Arizona, noithern Chihuahua, New Mexico, and western Texas. Type^ no. 88093, U. S. National Museum, 9 ad,, Omaha, Nebraska, March 9, 1878; Dr. R. W. Shufeldt. Agelaius phoeniceus neutralis. San Diego Red-wing. Similar to A. p. sonoriensis but smaller ; adult female much darker, with streaks less strongly contrasted above, those on under paits rather broader and grayer, the upper parts with little if any of rusty, even in winter. Great Basin district of United States northward to eastern British Columbia, southwestward to southern California (San Diego district) and noithern Lower California. Type, no. 134297, U. S. National Museum, 9 ad., Jacumba, San Diego Co., California, May 36, 1894; Dr. Edgar A. Mearns, U. S. A. Agelaius phoeniceus caurinus. Northwestern Red-wing. Similar to A. p. phcvniceus but wings and bill longer, the latter more slender ; adult male with buff of middle wing-coverts deeper (deep 154 RIDGWAY ochraceous-buff or ochraceous in winter) ; adult female more heavily streaked with black beneath, and, in winter plumage, with upper parts much more conspicuously marked with rusty. Northwest coast district, from British Columbia (Vancouver Island and coast of mainland) south through western Washington and Ore- gon to northern California (Mendocino County, May 3o) . Type, no. 153275, U. S. National Museum, 9 ad.. Cedar Hill, Van- couver Island, April 19, 1895 ; John Fannin. The North American Agelaii, including those of Alexico and the West Indies, as they appear from my recent revision of the group, are as follows : (i) Agelaius tricolor (i\udubon) ; California and Oregon, west of Sierra Nevada and Cascade Mts. (2) Agelaius gubernator gubernator (Wagler) ; southwestern part of Mexican plateau. (3) Agelaius gubernator californicus, Nelson. ; California (coast district) and western Oregon. (4) Agelaius gubernator grandis (Nelson) ; southeastern part of Mexican plateau. (5) Agelaius phoeniceus phocniceus (Linnaius) ; eastern North America, to base of Rocky Mts. (6) Agelaius phocniceus floridanus, Maynard ; Florida and Gulf coast to Galveston, Texas. (7) Agelaius phoeniceus bryanti, Ridgway ; Bahamas and south- eastern Florida. (8) Agelaius phccniceus richmondi. Nelson; southern Texas south through eastern Mexico to Nicaragua. (9) Agelaius phoeniceus sonoriensis, Ridgway ; southern Arizona and Colorado Valley in California, south to Tepic, western Mexico. (10) Agelaius phoeniceus neutralis, Ridgway ; west slope of Rocky Mts., to California and northern Lower California. (ii) Agelaius phoenicius caurinus, Ridgway; northwest coast, in Washington and British Columbia ; northern California in winter. (12) Agelaius phoenicius foitis, Ridgway; Rocky Mts., Great Plains, etc., during migration; breeding range unknown. (13) Agelaius assimilis, Gundlach ; Cuba. (14) Agelaius humeralis (Vigors) ; Cuba. (15) Agelaius xanthomus, Sclater ; Puerto Rico BIRDS OF THE FAMILIES TANAGRID^ AND ICTERID^ I55 Genus Pseudagelaeus. (Type, Agelceus imthurni Sclater.) Allied to Scaphidurus, but bill more slender, more attenuated and less sti'ongly decurved terminally ; tail less graduated, the graduation less than one fourth the length of middle rectrices (instead of between one fourth and one third as much) ; lateral toes longer, their claws reaching to base of middle claw. Type^ Agelceus imthurni^ Sclatek. (Monotypic.) Genus Xanthopsar. (Type, Oriolus Jlavus Gmelin.) Similar to Agelaius^ but bill relatively much longer and more slen- der, equaling or exceeding the head in length ; ninth primary longest, or equal to the longest (the ninth, eighth and seventh about equal in length) ; tarsus relatively shorter (but little longer than culmen and but little more than one fourth as long as wing) ; middle toe, with claw, longer than tarsus ; claw of inner toe falling short of base of middle claw, the outer toe still shorter ; hallux decidedly shorter than lateral toes, its claw very long (exceeding the digit in length) and narrow, the anterior claws relatively very small. PROCEKDINQS OF THE WASHINGTON ACADEMY OF SCIENCES Vol. Ill, pp. 157-216. PLS. xiv-xxvi. May ii, 1901 PAPERS FROM THE HARRIMAN ALASKA EXPEDITION. XXI. THE HYDROIDS. By C. C. Nutting. University of Iowa. CONTENTS : Introduction 157 Geographic distribution 158 Systematic discussion 163 INTRODUCTION. The collection of Hydroida secured by the Harriman Ex- pedition is of exceptional interest, and proves to be one of the most important and most extensive collections of these beautiful forms of marine life thus far made in Alaskan waters. Our pre- vious knowledge of the Hydroid fauna of this region rested almost exclusively on the collection made by Dr. W. H. Dall and his associates during the years 1871-1874 and reported on by Dr. S. F. Clark. ^ The number of species listed in Clark's report is 41, in which was included Co^finia arcta, now known to be merely the gonosome of JLafoea. Of these 40 species, 15 are well known British forms, and only one was then known from the Atlantic coast of the United States. The remaining 24 species were new. ^ Report on the Hjdroids collected on the coast of Alaska and the Aleutian Islands by W. H. Dall, U. S. Coast Survey, and party, from 1871 to 1874. inclusive. Proc. Acad. Nat. Sciences, Philadelphia, 1876. Proc. Wash. Acad. Sci., May, 1901. (i57) 1^8 NUTTING In 1878 C. Mereschkowsky ^ added a single species to the Alaskan fauna, bringing the total up to 41. No other additions were made until 1899, when I added eight, of which three were well known British species and five were new.^ That made a total of 49 species reported prior to the Harriman Expedition. The collection here treated of comprises 53 species, 24 of which had been previously reported. Of the remainder, 9 were previously recorded from other localities, and 20 are new. Thus the Harriman Expedition has added about 60 percent to the number of species hitherto known from Alaskan waters. More than half of the species secured are new to Alaska and nearly 40 percent are new to science. The whole number of species of hydroids now known from Alaska is 78. Considering the small amount of collecting that has been done in that region, compared with the extensive ex- plorations of the coasts of Europe and the Atlantic coast of the United States, one may confidently expect that the waters of the far Northwest will prove to be very rich in hydroid life. GEOGRAPHIC DISTRIBUTION. A table is here given to indicate, first, the localities at which each species was collected by the Harriman Expedition, and second, the extent to which Hydroids have been distributed south- ward along meridional lines from what appears to have been a polar center of distribution. No attempt has been made to represent the complete distribution of the species. A glance at the part of the table showing the distribution as represented in the collection secured by the expedition, shows an apparent poverty of the Hydroid fauna of the western, as compared with the eastern, portion of the territory explored. For convenience in such comparison the stations are arranged consecutively from east to west. The largest series were ob- tained at Berg Inlet in Glacier Bay ; Yakutat Bay ; and at Orca in Prince William Sound. These localities are all in deep bays, sheltered from storms and surrounded by rocky shores. On 1 New Hjdroida from Ochotsk, Kamtschatka, and other parts of the North Pacific Ocean. Annals and Mag. Nat. Hist., Dec, 1878. ^Hydroida from Alaska and Puget Sound. Proc. U. S. Nat. Museum, Vol. XXI. (No. 1171.) GEOGRAPHIC DISTRIBUTION OF THE HYDROIDS COLLECTED BY THE HARRIMAN EXPEDITION. Name.* Distribution of Specimens in the Harri- man Collection. General Distribution. i a a 1— I ■3 i s 3 >< 6 i •d 1 0. 0 Ph 1 a a 1 X 1 4) d. 0 1 a 0 ■s. 1 03 4-* 1 0 0 || "a 0 < Syncoryne eximia. *Coryne brachiata. + + + + + + + + + + + Eudendrium vaginatum. + + + + + ^Campanularia ritteri. Campanularia denticulata. Campanularia verticillata. Campanularia lineata. Campanularia speciosa. Campanularia urceolata. *Campanularia reduplicata. *Campanularia regia. Clytia caliculata. Clytia compressa. Obelia plicata. Obelia dichotoma. + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + " + + + *Obelia dubia. + + Hebella pocillum. *GonothyrEea inornata. *Campanulina rugosa. Calycella syringa. Lafcea dumosa. + + + + + + + + + + + + + + + + + + + + + + + Lafoea gracillima. + + + + + + + *Lafoea adhserens. + *Grammaria immersa. + Filellum serpens Halecium halecinum. + + + + + + + + + + + + + + + -j- *Halecium reversum. + + *Halecium robustum + + 4- + *IIalecium speciosum. Sertularella tricuspidata. Sertularella polyzonias. *.Sertularella saccata + + + + + •f + + + + + + + + + + + Thuiaria argentea. Thuiaria similis. + + + + + + Thuiaria variabilis. + Thuiaria cupressoides. *Thuiaria coei + + + + Thuiaria fabricii. + + + + Thuiaria turgida. Thuiaria gigantea. Thuiaria thuiarioides. + +' + + + 4- + + + + + + + Plumularia lagenifera. Plumularia palmeri. Totals. + + + + 20 lO 4 12 15 13 8 3 I 4 19 18 14 25 1 Species marked by a * are new. l6o NUTTING account of the presence of perpetual ice in the form of glacier fronts and bergs, the water must be very cold the year around. Such a combination of conditions is particularly favorable to Hydroid life and accounts for the remarkably rich collections made at these places and also for the presence of so many arc- tic species. In this connection it is interesting to note the fol- lowing paragraph written about twenty five years ago by Dr. Dall : "The material derived from the northwestern coasts of America, from Cook's Inlet south and east, indicates a series of Arctic colonies in favored localities, the future exploration of which offers a labor of the highest interest. These colonies are situated where the depth of water, the drippings of glaciers, and the high and adjacent shores of the Great Archipelago combine to reduce the temperature of the water below its apparently normal isotherm. Cook's Inlet affords one of them, one exists in the Gulf of Georgia, and others only await further explora- tion."^ It should be noted, however, that nearly all of the Arctic species are well known forms belonging to the ' Holarctic Province ' of authors, and that these species are of practically continuous distribution on all coasts in northern regions so far as explored. In the same paper. Dr. Dall divides the coasts of America from Monterey, California, north and west, into three faunal areas, as follows : («) the Oregoniaii, extending from Monterey to the Shumagin Islands ; {b) the Aleutian, extending from the Shumagin Islands to the end of the Aleutian chain, and north- ward to the winter line of floating ice in Bering Sea ; (c) the Arctic, limited on the shore line to the winter line of floating ice and passing southward indefinitely in deep water. This paper deals chiefly with what Dr. Dall would call the Oregonian Fauna, only seven species having been secured to the westward of the Shumagin Islands. Of these seven species five are also found in his Oregonian Fauna, and the other two are new and known, thus far, from only one locality. Dr. Clark, in reporting on the collection made by Dr. Dall, enumerates 25 species that occur west and north of the Shu- magin Islands. Of these 25 species we now know that sixteen ^ Proc. Acad. Nat. Sciences, Philadelphia, p. 206, 1S76. THE HYDROIDS l6l also occur to the eastward of the Islands, while five have not been reported from any locality other than the ones where they were originally discovered. Our present knowledge therefore does not support the validity of Dr. Dall's division of faun£e at the Shumagin Islands. It rather indicates a continuity of fauna from southern Alaska to the end of the Aleutian chain. Hydroid life appears to decrease as we go westward, but this may be only apparent and due to the more extensive exploration of the shores east of the Aleutian Islands. Dr. Dall extends his Oregonian fauna down to Monterey, California. Reasoning again merely from the known distribu- tion of hydroids, it would seem that Puget Sound is a natural region of demarcation between faunae, although the region from Puget Sound to San Francisco has been very little explored. In 1876 Dr. Clark published a paper on ' The Hydroids of the Pacific Coast of the United States south of Vancouver Island,' ^ in which he gives a list of twenty-four species ; of these only two, Lafoea dimiosa and Sertidaria argeiitca, have as yet been reported north of Puget Sound. The same author, in reporting on Dr. Dall's collections from Alaska, notes as one of the main points of interest, the " small number of species that are com- mon to the Alaskan coast and the western shores of the United States from Vancouver Island southward.^ In 1899 the present writer published a paper on ' Hydroida from Alaska and Puget Sound ' ^ in which it appears that out of twenty-two species from Puget Sound, only four have been reported farther south, while fifteen are now known to occur in Alaska. In the same year Mr. G. N. Calkins published a paper entitled ' Some Hydroids from Puget Sound,' ^ in which some thirty species are noted, only two of which are known to occur south of Puget Sound. From this study of the distribution of the Hydroids of the northwest coast of America, therefore, I am strongly persuaded that the region south of Puget Sound constitutes one distinct faunal area, and that the region from Puget Sound north and west to the end of the Aleutian chain constitutes another un- 1 Trans. Conn. Acad. Sci., Vol. iii, pp. 250-251, 1S76. ^Proc. Acad. Nat. Sciences, Philadelphia, p. 212, 1S76. 3Proc. U. S. Nat. Museum, Vol. xxi, No. 1171, 1S99. *Proc. Bost. Soc. Nat. Hist., Vol. xxviii. No. 13, 1899. Proc. Wash. Acad. Sci., Ma}', 1901. 1 62 NUTTING broken faunal area that might properly be designated as Alaskan. From the number of arctic species included in this area it is not improbable that it extends northward along the shores of Bering Sea. Dr. Clark agrees with Dr. Dall that there is a distinct faunal difference between the region east of the Shumagin Islands and that west of them. The material added since the publication of his paper, however, seems to prove that this difference is only apparent and due solely to lack of exploration. The most important thing to be noted in that part of the table devoted to general distribution is the Holarctic distribution of a number of species. Of the eighteen species known to occur in the Arctic region, no less than fifteen also occur on the European coast, fourteen on the Atlantic coast of the United States, and thirteen on the Pacific coast as far south as Puget Sound. An examination of the table shows further, that the Hydroid fauna of Alaska, as represented by the Harriman collection, includes fifty-three species in all, of which eighteen are Arctic in fact, having been secured in Arctic waters ; four others are in all probability Arctic, being found both in European and American waters ; four are, so far as is known, confined to the Alaskan and Pacific coast south to Puget Sound ; twenty-five are thus far known from Alaska only, and two are Californian. If we rec- ognize the Alaskan faunal region as extending to Puget Sound, and include those species actually known to be Arctic, together with those in all probability Arctic, in a group which may justly be called Arctic, the following significant analysis of the faunal rela- tions of the collection may be made : Alaskan species, twenty- nine ; Arctic species, twenty-two ; Californian species, two. This shows that fifty-five percent of the hydroid fauna as a whole is peculiar to Alaska, but that there has been a strong invasion from the Arctic regions of the Holarctic species constituting about forty-one percent of the collection, and that only two species, or less than four percent, are Californian. If all the species known to occur in Alaska were included in the computation the result would be a larger percentage of Alaskan species, a cor- responding decrease of the Arctic species, and the addition of one or two Californian species. THE HYDROIDS 163 SYSTEMATIC DISCUSSION. The writer deems it unnecessary to attempt a complete syn- onymy of the well known European species contained in the Harriman collection and considers it sufficient to g\vQ,Ji?'st, and in all cases, the original reference to the species ; second, all obtainable references to the occurrence of the species on the Pacific Coast of America, and, third, a reference to verify the ' General Distribution ' as given in the table just discussed. In this latter case only one reference will be given to verify the occurrence of a given species in each of the regions included in the right hand portion of the table. As to the classification employed in this report, it seems best, on the whole, to pursue a conservative course, following pretty closely the lines laid down by the able British naturalists, Hincks and AUman. While it is true that the classification is in an unsatisfactory state, the writer does not feel that a thor- ough revision of the entire group of Hydroida should be at- tempted here, and frankly confesses his conviction that recent attempts in that direction have not been successful, though each contains valuable suggestions. Levinsen, for example, has made a notable contribution to our knowledge of the Campanu- linidse in his able and careful exposition of the differences in the opercula of various species, but his genera founded solely on these structures appear to be artificial, as usually happens when a single character is made the basis of classification.^ In his terse characterization of the genera of Sertularidas this author has been most fortunate, as well as in his masterly clearing up of the mystery concerning the gonosome of Lafoea. Schneider,^ also, has attempted to rearrange the Hydroida on a logical basis. Instead of multiplying groups, as has been the tendency of late, he has, in my opinion, gone far to the other extreme, uniting families that almost any other student acquainted with the group would regard as surely distinct. It seems un- likely that he will be followed in uniting such groups as the Tubularidas and Pennaridae in a single family, although one ' Meduser, Ctenopherer og Hjdroider fra Grdnlands Vestkvst, Copenhagen, 1893. ^Hjdropolypen von Rovigno, nebst ubersicht iiber das system der hjdro- polypen in allgemeinen. Zool. Jahrb., Sjst. Abth., Vol. x, 1S97. 164 NUTTING writer, Calkins/ has followed his classification quite closely, and includes representatives of what would ordinarily be regarded as at least eleven families in five families as defined by Schneider. It is not likely that classifications will ever represent anything but individual opinion, and it is probable that there will always be two sets of extremists who on the one hand will be too ready to multiply groups, and on the other will be too conservative to recognize real progress. The Hydroida offer unusual difficul- ties and consequently students of that group find agreement, even along the most general lines, practically impossible. The objective point of systematic discussion has been the attainment of a system of classification by which genera could be distin- guished by means of the trophosome alone. This end, although in theory greatly to be desired, appears to be unattainable. The writer has chased this will-o-the-wisp for years, and is ready to abandon its pursuit as unprofitable. Abler men have had the same experience, and it appears to be pretty well established that in practice we must base generic distinctions on the gono- some alone, although the judgment of students will inevitably differ as to the extent to which this can be profitably done. Botanists have encountered the same difficulty in their study of the lower plants, such as the fungi, and have come to the same conclusion. In neither case has nature been working for the convenience of naturalists, and the fact should be accepted without a bootless chase after the unattainable. G TMNOBL A S TEA . Hydroida in which well differentiated hydrothecce and gonangia are not present. What might be called ' pseudo-hydrothecae ' are found in some species as in Eudendriuin vaginatum (see description of that species on pages 167—168). Family CORTNID^M. 1 rophosome. — Hydranth with a terete body and proboscis and scat- tered capitate tentacles only. Gonosome. — Fixed sporosacs, or free medusEe with a very long manu- brium, four marginal tentacles and four sense-bulbs with eye-spots. 'Some Hydroids from Puget Sound, Proc. Best. Soc. Nat. Hist., Vol. xxvni, No. 13, 1899. THE HYDROIDS 165 CORYNE. Trophosome. — Characters of the family. Gonosome. — Reproductive elements produced in fixed sporosacs growing on the hydranth body. CORYNE BRACHIATA sp. nov. (Plate XIV, figs. I, 2.) Trophosome. — Colony forming a dense tuft of irregularly branching stems, sometimes attaining a height of about ^ inch. Stems and branches profusely and regularly annulated throughout, fairly stout ex- cept at the proximal ends where they taper gradually to their point of origin ; distal ends of many of the branches bear a more or less regular whorl, or radiating cluster, of annulated branchlets just below the hydranth body, reminding one of the whorls of cirri around the stems of the stalked crinoids. Hydranths large, with long, slender body and proboscis and numerous (20-35) capitate tentacles arranged in a scattered or sub-verticillate manner over nearly the whole surface. Gonoso7?ie. — Gonophores very numerous, borne among the tentacles on the hydranth bodies, globular in outline and showing no traces of radial canals or other medusoid structures. The specimens secured were females and the gonophores were packed full of develop- ing ova. Distribution. — All the specimens were secured in Yakutat Bay, Alaska, by Dr. W. R. Coe of the Harriman Expedition. This interesting species seems to be nearest to C. pusilla Gaertner, if Allman has properly identified that species. It differs from other members of the genus in the curious whorl of short branchlets which bear neither hydranths nor gonophores and are situated a short distance below the terminal hydranth of the stem or branch to which they are attached. Another character not shown in the figures of this genus published by Hincks and Allman, is the narrowing at the proximal ends of the stems and branches. The specimens were found immei'sed in sponge so far that only the hydranths extended above the surface of the sponge. SYNCORYNE. Trophosome. — Characters the same as those given for the family. Gonoso7ne. — Reproductive elements produced in free medusce with a long manubrium and four marginal tentacles, each having a sense bulb with an eye-spot at its base. l66 NUTTING SYNCORYNE EXIMIA Allman. (Plate XIV, figs. 3, 4.) Coryne eximia Allman, Annals and Mag. Nat. Hist,, 3d Series, Vol. iv, p. 141. Aug-., 1859. Syncoryne eximia Allman, Annals and Mag. Nat. Hist., 3d Series, Vol. xiii, p. 357. May, 1864. This appears to be the first record of the occurrence of this species in American waters. There are many specimens in the collection, but all are from the same locality, Distributio7i. — Juneau, Alaska (Harriman Expedition) ; Great Britain (Allman and Hincks) ; Lofoten Islands, Norway (Sars). Fam i ly BIMERID^^. Trophoso7ne. — Hydranths with a conical or dome-shaped proboscis, around the base of which is a whorl of filiform tentacles. Gonosome. — Sexual products developed in fixed sporosacs. GARVEIA. Trofhosojue. — Colony branched ; perisarc conspicuous. Gonosome. — Gonophores borne on distinct branchlets which have a chitinous investment ending in a cup-like expansion just below the gonophore. GARVEIA NUTANS Wright. Garveia nutans Wright, Edinburgh New Phil. Jour., p. 109. July, 1859. Eudendrium bacciferum Allman, Annals and Mag. Nat. Hist., 3d Series, Vol. IV, p, 52, July, 1859. This is another species that has not before been reported from American waters. The specimens were fragmentary, making the identification somewhat uncertain, although I have little doubt of its correctness, Disiribzition. — Berg Inlet, Glacier Bay, Alaska, (Harriman Ex- pedition,) Originally described from the British Coast. GARVEIA ANNULATA sp. nov. (Plate XV, figs. 1,2.) Trophosome. — Colony attaining a height of i^ inches, consisting of a number of closely aggregated and sparingly and irregularly branched stems. Stems strongly and evenly annulated throughout, the perisarc expanding distally into thin chitinous pseudo-hydrothecce which cover the hydranth body nearly to the level of the tentacles. Hydranths with THE HYDROIDS 167 a conical, or rather conoid, proboscis and about sixteen tentacles all of which appear to be held more or less erect. Gonosojne. — Gonophores borne either on the stem or hydrorhiza, more frequently the latter, oval in shape, borne on pedicels enveloped in a chitinous perisarc which ends in a slightly expanded collar a little below the gonophore. The specimens collected were female and the gonophoi^es were packed with apparently mature ova. Color. — The label accompanying the specimens bore the following statement : " Bright orange throughout, heads, stems and all." Distribution. — Yakutat and Sitka, Alaska. Collected by the Har- riman Expedition in considerable quantities. This species can be sharply distinguished from its British relative by the very distinct and beautiful annulation which covers the entire stem and branches. It is much less extensively branched than the British species, and the gonophores are more generally borne on the roots. The structure that I have designated above as a ' pseudo-hydrotheca ' is of considerable morphological interest, for it may throw light on the origin of the hydrotheca. The extension of the chitinous perisarc of the stem over the body of the hydranth appears to be attached to the latter. A true hydrotheca would be formed if the perisarc around the hydranth body should become thicker and detached. Family EUDENDRID^^. Trophosonie. — Colony branching. Hydranths with a single whorl of filiform tentacles and a trumpet-shaped or hemispherical proboscis which is expanded distally and contracted proximally, thus being sharply distinguished from the hydranth body. Gonosome. — Reproductive elements developed in fixed sporosacs at- tached to a usually more or less degenerated hydranth body below the tentacles. This family contains but one genus, Eudendriuni, which needs no further definition. , EUDENDRIUM VAGINATUM Allman. (Plate XV, figs. 3-6.) Eudendrium vaginatum Allman, Annals and Mag, Nat. Hist., Third Se- ries, Vol. XI, p. 10, Jan., 1863. As the gonosome of this species has not heretofore been described, the following is inserted here : Gonosofne. — Gonophores (female) in dense clusters around the bodies of hydranths that are usually devoid of tentacles. Each gono- l68 NUTTING phore is borne on a pedicel which resembles those of Garveia, having a distinct expanded collar a short distance below the hydranth. DisU-ibtction. — Sitka Harbor and Yakutat, Alaska, abundant (Harri- man Expedition) ; Shetland Island, Scotland (Allman). This beautiful species beai's considerable resemblance to Euden- drium anmdatum Allman, especially in its gonosome which Allman describes as follows : " The gonophores ai^e grouped in clusters, con- sisting of from eight to twenty egg-shaped bodies attached around the axis of gonoblastidea, which are of moderate length."^ Were it not for a peculiar character of the trophosome, i. e., the ex- panded pseudo-hydrotheca investing the body below the tentacles much as in Garveia^ there might be some suspicion that E. vaghiatiun and E. annulatum are synonyms, particularly in view of the fact that both were described from the Shetland Islands. It also seems not improbable that Eudendrhan pygmceuin Clark - may be another synonym of E. vaginattan^ as Clark's description of the gonosome agrees well with the gonosome described above. If this be true, it is also likely that the dried stems described by Clark from Santa Cruz, California, will be found to belong to this same species. Family TUBULARID^E. Trophosome. — Hydranths large, with a basal whorl of filiform ten- tacles and a distal set of closely crowded shorter filiform tentacles. Gonosome. — Reproductive elements developed in sessile medusae borne in clusters just above the basal tentacles and producing actinules instead of planuliB. TUBULARIA. The only genus included in the family in the sense here used. TUBULARIA HARRIMANI sp. nov. (Plate XVI.) Trophosoj77e. — Stem usually unbranched, attaining a height of ij4 inches, irregularly and sparingly annulated and increasing in size from the proximal to the distal end, but more rapidly on the basal portion ; a marked constriction some distance below the hydranth body ; stem canaliculated between the constriction and the hydranth. Hydranth with forty to fifty basal tentacles and about twenty in the distal set. Gonosome. — Gonophores borne in about twelve very long and densely crowded racemes, which are supported by long, tentacle-like 'Ann. and Mag. Nat. Hist., 3d Series, Vol. xiii, p. 83, Jan., 1S64. ^Proc. Acad. Nat. Sciences, Philadelphia, p. 232, 1S76. THE HYDROIDS 1 69 pedicels arising above the proximal row of tentacles. Gonophores (fe- male) with three to five long tentacular processes which are sometimes half the length of the gonophore. The actinule at birth is without a distal row of tentacles, and the gonophore has no indication of radial canals. Distribution. — Orca, Prince William Sound, -Alaska (W. E. Ritter). Exclusive of this species there have now been described four species of Tubiilaria from the Pacific Coast of North America ; ParypJia microcephala (A. Agassiz),^ which differs from the present species in having flattened, instead of round, tentacular processes to the gono- phores ; Tubularia elegans Clark, ^ which has mere tubercles instead of the filiform processes to the gonophores ; Tubularia borealis Clark, ^ which differs in having laterally compressed processes to the gonophores ; and Tubularia larynx Ellis and Solander * (repoited by Gary S. Calkins), v^^hich differs from T. harri?nani in the number of both proximal and distal sets of tentacles, as well as in several other characters. The species seems to be abundant at Orca, as numerous specimens were found. CAL TPTEROBLASTEA. Hydroida in which hydrothecte are developed for the protection of the hydranths and gonangia for the protection of the gonophores. Family CAMPANULARIDyE. Trophosome. — HydrotheCcB well developed, non-operculate, never adnate nor immersed in the stem and always with a septum partially dividing the hydrothecal cavity from the stem cavity. Hydranths usually with conical proboscis and a single whorl of filiform tentacles. Gonosotne. — Gonophores producing planulie or free medusae. It would be hard to find two authorities who would agree as to the genera of this exceedingly perplexing family. The arrangement here adopted is substantially the same as that used by the writer in another work now in press. ^ It is not offered as a final solution of the diflS- culty, but as a convenience in discussing the group in the present connection, ' North American Acalephae, p. 195. ^Transactions Conn. Acad. Sci., Vol. in, p. 253, 1876. 3Proc. Acad. Nat. Sci. Philadelphia, p. 231, 1876. ^Proc. Boston Soc. Nat. Hist., Vol. xxviii. No. 13, p. 335. ^Handbook of the Hjdroids of the Woods Hole Region. To be published by the U. S. Fish Commission. lyo NUTTING CLYTIA. Irofhosome. — Stem not regularly branched. Hydrothecae with toothed margins, or with excessively thick walls and with long pedicels. Gonosome. — Reproduction by means of free medusje. CLYTIA CALICULATA (Hincks). (Plate XVII, figs. I, 2.) Campanularia caliculata Hincks, Annals and Mag. Nat. Hist., 2nd ser., Vol. XI, p. 178, March, 1853. — Verrill, Preliminary check-list of Marine Invertebrates of Atlantic Coast, etc., p. 16, 1879. — Marktanner-Turn- ERETSCHER, Hydroidcn von Ost-Spitzbergen, Zool. Jahrb., Vol. viil, p. 406. 1895. — Calkins, Some Hydroids from Puget Sound, Proc. Boston Soc. Nat. Hist., Vol. xxviii. No. 13, p. 351, 1899. Some authors, as Levinsen, regard this species as identical with C. Integra Macgillivray. The mode of reproduction is so different, however, that the two would go into different genera in the classifica- tion here adopted. Distribution. — Yakutat, Alaska (Harriman Exped.) ; British Coast (Hincks) ; Spitzbergen (Marktanner-Turneretscher) ; New England Coast (Verrill) ; Puget Sound (Calkins). CLYTIA COMPRESSA (Clark). (Plate XVII, figs. 3, 4.) Canjpamitarja compressa Clark, Proc. Acad. Nat. Sciences, Philadelphia, p. 214, 1876. Eticopella campanutaria (VoN Lendenfeld)? Uber Coelenteraten der Sudsee, IV, Mitth. Zeitsch. Wiss. Zool., xxxviii, p. 497, 1883. Distribution. — Orca, Alaska (Harriman Exped.) ; Shumagin Islands (Clark). The figures given of this species well illustrate the great variation in thickness of the hydrothecal walls. All the speci- mens thus far discovered were found attached to Laminaria, over which they creep in great profusion. Von Lendenfeld makes his Eucopella campattularia the subject of one of his masterly monographic papers and it appears to agree in every particular with the species under discussion. If I am correct in supposing the two species identical, the name Eucopella compantdaria will become a synonym and a very exceptional distribution will be re- corded for Clytia co?hpressa. It is interesting to note that von Lendenfeld's species \vas also found growing on Laminaria. The present writer does not agree with Calkins in his suggestion that C. compressa is a synonym of C caliculata . THE HYDROIDS I7I CAMPANULARIA. Trophosome. — Colony unbranched or regularly branched ; stem simple or fascicled ; hydrothecae campanulate, never completely ses- sile nor with operculum. Gonosome. — Gonophores producing planulae without the interven- tion of meduste, CAMPANULARIA VERTICILLATA (Linn.) Serhilaria verticillata Linn., Syst. Nat., loth ed., p. 811, 1758. Campanularia verticillata Sars, Bidrag til Kundskaben om Norges Hydroider, p. 46, 1873. — Verrill, Preliminary check-list of Marine Invertebrates of Atlantic Coast, p. 16, 1879. Distribution. — Kadiak, Alaska (Harriman Exped.) ; North Cape, Norway (Sars) ; New England Coast (Verrill). CAMPANULARIA DENTICULATA Clark. Campanularia denticiilata Clark, Proc. Acad. Nat. Sciences, Philadelphia, p. 213, 1876. Distribution. — Orca, Alaska (Harriman Exped.); Port Etches, Alaska (Clark). CAMPANULARIA LINEATA Nutting. Campanularia lineata Nutting, Hydroida from Alaska and Puget Sound, Proc. U. S. Nat. Mus., Vol. xxi, p. 744, 1899. Distribution. — Berg Inlet, Glacier Bay, Alaska (Harriman Ex- ped.) ; Puget Sound (Nutting). CAMPANULARIA RITTERI sp. nov. , (Plate XVII, fig. 5.) Trophosome. — Colony usually consisting of unbranched pedicels growing directly from a creeping rootstock. Pedicels long and slender, usually witli a single distinct annulation at the distal end just below the hydrotheca and about three less distinct ones at the proximal end, the middle portion not being annulated. Hydrothecse cylindrical, large, delicate in structure and with a perfectly even rim. Go7ioso9ne. — Unknown. Distribution. — Juneau, Alaska, 20 fathoms. Collected by Prof. Wm. E. Ritter to whose efforts the fine series of Hydroids here dis- cussed is so largely due, and for whom this species is named. CAMPANULARIA SPECIOSA Clark. (Plate xviii, fig. 3, Plate xix, fig. 3.) Campanularia speciosa Clark, Proc. Acad. Nat. Sciences, Philadelphia, p. 214, 1876. — Levinsen, Meduser, Ctenophorer og Hydroider fra Gron- lands Vestkyst, p. 25, 1893. 172 NUTTING Camp aft ularia crenata Allman, Diagnoses of new Genera and Species of Hydroida, Linnaean Society Journal, Zoology, Vol. xi, p. 258, 1876. Distribution. — Orca, Alaska (Harriman Exped.) ; Yukon Harbor, Big Koniuji, Shumagin Islands, Alaska (Clark) ; Japan Coast (All- man) ; Greenland (Levinsen) . CAMPANULARIA URCEOLATA Clark. (Plate XVIII, fig. 2.) Catnpanularia tirceolata Clark, Proc. Acad. Nat. Sciences, Philadelphia, p. 215, 1876. Distribution. — Yakutat Bay, Alaska (Harriman Exped.) ; Lituya Bay, Alaska (Clark). The specimens collected by the Harriman Expedition were growing profusely over the stems and branches of Thuiaria costata in com- pany with another parasitic species. CAMPANULARIA REDUPLICATA sp. nov. (Plate xviii, fig. I.) Trophoso7ne. — Colony consisting of unbranched stems or pedicels springing from a creeping rootstock. Pedicels one to three times as long as the hydrothecai, and strongly annulated throughout. Hydro- thec£e deeply campanidate, thick-walled ; margins armed ^vith twelve to fourteen rather pointed teeth, and reduplicated once or twice, giving a striking and unusually ornate appearance. Gonosome. — Gonangia roughly ovate, irregular in outline, with a short neck, small terminal aperture and a very short pedicel. They Avere empty in the specimens examined, so that it was impossible to ascertain whether they produced planula^ or meduscE. Distribution. — Yakutat, Alaska (Harriman Exped.). All the specimens were found growing in a parasitic manner over colonies of Thuiaria costata., in company \vith Ca?npanular)ia urceolata. The two species were often so intimately interwoven as they crept over the stems and branches of the sertularian that I, at first, thought them dimorphic forms of one species. However, in all cases careful dissection showed that they were entirely' separate colonies. The reduplication of the hydrothecal margins seems to be a constant feature and adds peculiar beauty to this striking little campanularian. CAMPANULARIA REGIA sp. nov. (Plate XIX, figs. 1,2.) 7 rophosome. — Colony consisting of a creeping rootstock without annulations, giving forth strong pedicels that are sometimes longer THE HYDROIDS I73 than the hydrothecae and sometimes considerably shorter, without a definite swelling below the hydrothecaj. HydrotheciE immense, in one case nearly -^ of an inch in height, long, tubular-urceolate, ex- panded distall}', with slightly everted and broadly sinuous margin. The margin is reduplicated in one specimen. Hydranth with about twenty tentacles. Gonosome. — Not known. Distribution. — Orca, Prince William Sound, Alaska (W. R. Coe, Harriman Exped.). This species is closely allied to C. grandis Allman,^ and may be identical with it although it differs from Allman's description in the character of the pedicels which he describes as having distinct node- like enlargements immediately below the hydrothecae. The hydro- thecae are larger than those of any other campanularian known to me. But one small colony was found and it was creeping over another hydroid. OBELIA. Trofhosome. — Colony regularly branching ; stem simple or com- pound. Hydrothecas campanulate, thin, never with greatly thickened walls. Gonosome, — Reproduction by means of medusa; which are disk- shaped, with four radial canals, more than eight marginal tentacles, eight interradial lithocysts and a short manubrium without mouth ten- tacles. OBELIA DICHOTOMA (Linn.). Sertularia dicJiotoma Linn., Systema Naturae, Ed. x, p. 812. 1758. Obelia dichotoma Schulze, Nordsee Expedition, Hydroida, p. 129, 1872. — Verrill, Preliminary check-list Marine Invertebrates of Atlantic coast, p. 16, 1879. — Calkins, Some Hydroids from Puget Sound, Proc. Boston See. Nat. Hist., Vol. xxviii. No. 13, p. 256, 1899. Distribution. — Sitka, Berg Inlet, and Orca, Alaska (Harriinan Exped.) ; British Coast (Hincks) ; Helgoland (Schulze) ; Puget Sound (Calkins) . OBELIA PLICATA Hincks. Obelia plicata Hincks, British Hydroid Zoophytes, p. 159, 1868. — Nutting, Hydroida from Alaska and Puget Sound, Proc. U. S. Nat. Mus., Vol. XXI, No. 13, p. 741, 1899. Distribution. — Orca, Alaska (Plarriman Exped.) ; Puget Sound (Nutting) ; British Coasts (Hincks) . 1 Diagnoses of new Genera and Species of Hydroida; Linntean Soc. Jour. Zoology, Vol. XI, p. 259. 174 NUTTING OBELIA BOREALIS sp. nov. (Plate XIX, figs. 4, 6.) Trophosome. — Colony sometimes attaining a height of eighteen inches, but usually much shorter ; stem not truly fascicled, although several stems may be interw^oven, exceedingly long and slender, sinu- ous, giving off lateral branches in pairs on proximal portion and more often singly on distal portion ; branches vs^ith a strong tendency to ver- ticillate arrangement, forming oblique angles with the stem and divided into nuinerous branchlets in a flabellate manner. Pedicels short and completely annulated, or long and annulated only at ends, set on broad shoulders of the stem. Hydrothecae funnel-shaped, the sides usually straight, aperture with an even rim. Hydranths not well preserved in specimens examined. Gonosofne. — Gonangia borne in axils of branches and branchlets, oblong-ovate, truncated above, having a collar in mature specimens ; aperture apparently very large, pedicels strongly annulated. The gonangia of the specimens examined were filled with developing medusae of the regular Obelia type. Distribution. — Yakutat, Alaska (Harriman Exped.). This fine species is related to O. Jiabe/lata^ but the hydrothccas are much deeper than in O. Jlabellata, in which they are sub-triangular in outline. It also bears some resemblance to O. comtnisstcralis, which, however, is a much more delicate species, with smaller and more campanulate hydrothecai. OBELIA DUBIA sp. nov. (Plate XX, fig. I.) Trophosome. — Colony attaining a height of about ^ inch ; stem sparingly branched, the main stem and larger branches sinuous or slightly geniculate, giving forth pedicels singly or in opposite pairs at the bends. Pedicels rather long and annulated throughout, the stem also more extensively annulatedj than in most species of the genus. Hydrothecae very large, deep, tubular, with very shallow undulations around the margin, from between which lines run down for a short distance on the surface of the hydrothecae. Gonosome. — Unknown. Distribution. — Orca, Alaska (Harriman Exped.). This species bears some resemblance to O. bidentata Clark, found on the New England Coast, but differs in the nature of the hydrothe- cal teeth w^hich are inere sinuosities, instead of being mucronate with two denticles each as in the latter species. THE HYDROIDS l75 HEBELLA. Trophosome. — Pedicels arising from a creeping rootstock, very short. Hydrotheca tubular, with entire margins, without opercula, and having their cavities separated from those of the stems by a partial septum. Hydranths with a conical proboscis. This genus was originally instituted by Allman.^ As here defined it includes several species heretofore included in the genus Lafcea. HEBELLA POCILLUM (Hincks). Lafoea pocilhim Hincks, British Hydroid Zoophytes, p. 204, 1868. — Clark, Proc. Acad. Nat. Sciences, Philadelphia, p. 215, 1876. — Verrill, Pre- liminary check-list Marine Vertebrates of Atlantic coast, p. 17, 1879. — Bergh, Goplepolyper (Hydroider) fra Kara-Havet, p. 333, 1887. Distribution. — Kadiak, Alaska (Harriman Exped.) ; Nunivak Island, Alaska (Clark) ; Kara Sea (Bergh) ; British Coasts (Hincks) ; New England Coast (Verrill) . GONOTHYRffiA. Trophosome. — Much as in Obelia. Gonosome. — Planulae produced in sessile medusaform gonophores which remain attached to the top of the gonangia until the spermatozoa or planulae are discharged. GONOTHYR^A INORNATA sp. nov. (Plate XX, figs. 2-4.) Trophosome. — Colony attaining a height of about two inches and consisting of a main stem which almost immediately breaks up into a number of very slender, erect, almost straight branches which are ornamented with about three annulations immediately above the origins of the pedicels. Pedicels alternate, erect, much broader below than above and with seven to ten annulations. Hydrothecte funnel-shaped, with entire margins. Gonoso7ne. — Gonangia borne in the axils of the pedicels, slender, obconic, with a tendency to annulation. Each gonangium contains a single sporosac which when mature rests upon the svunmit of the go- nangium and has little indication of radial canals or tentacles. Distribution. — Y'akutat Bay, Alaska (Harriman Exped.). This species differs from others of the genus in having but one sporosac to each gonangium and in the obliteration of most of the medusoid characters of the sporosac. The entire margin of the hydro- theca is also an exceptional character. • Allman, Challenger Report, Hydroida, -Second Part, p. 29, 1S8S. iy6 NUTTING Family CAMPANULINID^^. Trophosome. — Colonies branched oi* unbranched. Hydrothecce borne on pedicels, tubular, ending in an operculum composed of several converging segments or triangular flaps. Hydranth with a conical proboscis. Gonosome. — Gonangia producing free medusie or planulas. CAMPANULINA. Trophosome. — Hydrothecre thin-walled, the upper portion cleft so as to produce very long and slender teeth which form an operculum by the convergence of their free ends. Gonosome. — Gonangia producing bell-shaped medusa, with four radial canals, two or four marginal tentacles, and eight lithocysts. CAMPANULINA RUGOSA sp. nov. (Plate XXII, figs. I, 2.) Trophosome. — Colony attaining a height of about ^ inch. Stem irregularly branched ; branches tending to an alternate arrangement, straggling, geniculate ; stem and branches strongly and regularly annu- lated throughout. Pedicels very short, with three to six annulations. Hydrothecae ovoid-oblong, the distal third being composed of the oper- culum consisting of ten or twelve segments. The hydranths have about sixteen tentacles. Gonosome. — Gonangia in axils of the pedicels and branches, some- times aggregated on certain branches to the exclusion of hydrothec^. They are oblong-ovoid in shape and somewhat flattened on their distal ends. Each gonangium contains a single medusa when matm-e. Distribution. — Juneau, Alaska (Harriman Exped.). The speci- mens were found growing on Obelia. CALYCELLA. Trophosome. — Stem a creeping rootstock sending forth short an- nulated pedicels. Hydrothecae tubular, thick-walled, with opercula that are distinct from the hydrothecal teeth, and composed of several tri- angular segments. Gofiosome. — Gonangia borne on the rootstock, and, when mature, bearing acrocysts. CALYCELLA SYRINGA (Linn.). Sertularia syringa LiNN., Systema Naturae, Ed. xii, Tom. i, Pars ii, p. 1311, 1767. THE HYDROIDS I77 Calycella syringa Clark, Proc. Acad. Nat. Sciences, Philadelphia, p. 210, 1876. — Verrill, Preliminary Check-list Marine Invertebrata Atlantic Coast, p. 17, 1879. — Bergh, Goplepolyper (Hydroider) fra Kara-Havet, p. 335, 1887. — Nutting, Hydroida from Alaska and Puget Sound, Proc. U. S. Nat. Mus., Vol. xxi, p. 741, 1899. Distribution, — Berg Inlet and Kadiak, Alaska (Harriman Exped.) ; Coal Harbor, Shumagin Islands, Alaska (Clark) ; Kara Sea (Bergh) ; British Coasts (Hincks) ; New England Coast (Verrill) ; Puget Sound (Nutting). Family LAFCEID^^. Trophosome. — HydrotheCce tubular, margins without teeth or oper- cula, the hydrothecal cavity not divided from the stem cavity by a par- tial septum. Gonosome. — Gonangia forming a ' Coppinia ' mass. LAFCEA. Trophosome. — Colony with a fascicled stem, and with hydrothecas either free or partially immersed in the stem, the distal portion not be- ing abruptly turned upward. Gonosome. — A ' Coppinia' mass. LAFCEA DUMOSA (Fleming). Sertularia dumosa Fleming, Edinburgh Phil. Jour., 11, p. 83, 1828. Lafcsa dujnosa Sars, Bidrag til Kundskaben om Norges Hydroider, p. 45, 1873. — Clark, Proc. Acad. Nat. Sciences, Philadelphia, p. 210, 1876. — Verrill, Preliminary Check-list Marine Invertebrates of Atlantic Coast, p. 17, 1879. — Nutting, Hydroida from Alaska and Puget Sound, Proc. U. S. Nat. Mus., Vol. xxi, p. 741, 1899. Distribution. — Dutch Harbor, Unalaska (Harriman Exped.) ; Port Etches, Alaska (Clark) ; North Cape, Norway (Sars) ; British Coast (Hincks) ; New England Coast (Verrill) ; Puget Sound (Nutting) ; California Coast (Clark). LAFCEA GRACILLIMA (Alder). Campanularia gracillima Alder, Catalogue Zoophytes of Northumberland and Durham, Trans. Tyneside Naturalists' Field Club, p. 39, 1857. Lafcea gracillima Clark, Proc. Acad. Nat. Sciences, Philadelphia, p. 216, 1876. — Verrill, Preliminary Check-list Marine Invertebrates of Atlantic Coast, p. 17, 1879. — Marktanner-Turneretscher, Hydroiden von Ost-Spitzbergen, Zoolog. Jahrbuch., Vol. viii, p. 410, 1895. — Nutting, Hydroida from Alaska and Puget Sound, Proc. U. S. Nat. Mus., Vol. xxi, p. 741, 1899. Distribution. — Juneau, Berg Inlet and Orca, Alaska (Harriman Exped.) ; Shumagin Islands, Alaska (Clark) ; British Coast (Alder) ; Proc. Wash. Acad. Sci., May, 1901. 178 NUTTING Spitzbergen (Marktanner-Turneretscher) ; New England Coast (Ver- rill) ; Puget Sound (Nutting). LAFCEA FRUTICOSA M. Sars. Lafcea frtiticosa M. Sars, Bemzerkninger over 4 norske Hydroider Vid. Selsk. Forh., 1862. — G. O. Sars, Bidragtil Kundskaben om Norges Hydroider, p. 26, 1873. — Clark, Proc. Acad. Nat. Sciences, Phila., p. 216, 1876. Distribution. — Juneau, Berg Inlet and Kadiak, Alaska (Harriman Exped.) ; Kiska Harbor, Shumagin Islands, Alaska (Clark) ; British Coasts (Hincks) ; Lofoten, Norway (G. O. Sars) ; New England Coast (Verrill) ; Puget Sound (Nutting, MSS.). LAFCEA ADHERENS sp. nov. (Plate XXI, figs. 3, 4.) Trophosome. — Colony forming an encrusting mass of adherent root- stocks disposed both longitudinally and transversely over colonies of other Hydroids, the tubes of the rootstock interwoven much like the threads of a fabric. HydrotheciE sessile, tubular, often more or less curved, aperture facing upward, entire ; margin slightly expanded. The hydrothecae are very irregularly disposed, being much more crowded in some places than in others. Gonosome. — The ' Coppinia ' mass is much like that of Lafoea du- fnosa., being composed of closely packed gonangia interspersed with long, tubular, variously curved modified hydrothecae. The gonangia are flask-shaped, with a tubular neck and small aperture. Each gonangium apparently contains a single ovum. Distribtition. — Kadiak Harbor, Alaska. Growing over stems of Thuiaria turgida (Harriman Exped.). This interesting species is so different in appearance from the others of the genus that I was at first inclined to make it the type of a new genus. GRAMMARIA. Trophosome. — Stem fascicled, composed of an axial tube from which the hydrothec^ spring and to which they are partly adnate, completely enclosed by a definite number of peripheral nonhydro- thecate tubes. Gonosome. — A ' Coppinia ' mass. GRAMMARIA IMMERSA sp. nov. (Plate xxi, figs. 5, 6.) Trophosome. — Stem rigid, erect, giving forth scattered, stiff and straight, altei-nate branches forming nearly a right angle with the stem. THE HYDROIDS 1 79 Height of a fragmentary specimen about ^ inch. Stem and branches sharply constricted proximally, composed of an axial tube which gives off the eight or nine series of hydrothecae, and a number of peripheral tubes enclosing the axial tube completely, thus burying all the hydro- thecse nearly to their distal ends, Hydrothecae arranged in about eight or nine longitudinal series, forming spirals. The distal ends of the hydrothecae are abruptly bent outward, so that the round, even aper- ture is vertical. When the peripheral tubes are removed the hydro- thecae are seen to be long, tubular, doubly curved, narrowing prox- imally, but without true pedicels, and all springing from the axial tube. Gonoso?ne. — Unknown. Distribution. — St. Paul harbor, Kadiak (Harriman Exped.). FILELLUM. Trophosome. — Stem a creej^ing, slender rootstock, parasitic on other hydroids, often forming a reticulate structure. Hydrothecae curved, decumbent, and partly adherent ; margin entire, without operculum. Gonosome. — A 'Coppinia' mass. FILELLUM SERPENS (Hassell). Campanularia serpens Hassell, Zoologist, No. 69, p. 2223. Filelhim serpens Sars, Bidrag til Kundskaben om Norges Hydroider, p. 29, 1873. — Verrill, Preliminary Check-list Marine Invertebrates of Atlantic Coast, p. 17, 1879. Distribution. — Juneau, Alaska (Harriman Exped.) ; British Coast (Hassell) ; Lofoten, Norway (Sars). Family HALECID^^. Trophosome. — Hydrothecae reduced to the form of saucer-shaped or collar-like hydrophores, usually borne on broad tubular pedicels ; margins even, often reduplicated. Hydranths large, incapable of re- tracting within the hydrophores, and with a conical or dome-shaped proboscis. Gonosome. — Gonangia producing planulae, and usually differing in the two sexes. HALECIUM. Trophosome. — No specialized defensive ' persons ' developed. Gonosome. — Female gonangia often surmounted by a pair of hydranths. HALECIUM HALECINUM (Linn.). Sertularia halecina Linn., Systema Naturae, Ed. x, p. 809, 1758. l8o NUTTING Halecium halecmiwi Verrill, Preliminary Catalogue Marine Invertebrates Atlantic Coast, p. 17, 1879. — Marktanner-Turneretscher, Hydroiden von Ost-Spitzbergen, p. 428, 1895. — Nutting, Hydroida from Alaska and Puget Sound, Proc. U. S. Nat. Mus., Vol. xxi, p. 741, 1899. Distribution. — Kadiak, Alaska (Harriman Exped.) ; British Coast (Hincks) ; Greenland (Marktanner-Turneretscher) ; New England Coast (Verrill) ; Puget Sound (Nutting). HALECIUM MURICATUM (Ellis and Solander). Sertularia muricaia Ellis and Solander, Nat. Hist. Zoophytes, p. 59, 1786. Haleciiwi muricatutn Verrill, Preliminary Check-list Marine Invertebrates Atlantic Coast, etc., p. 17, 1879. — Levinsen, Meduser, Ctenophorer og Hydroider fra Gronlands Vestkyst, p. 61, 1893. — Clark, Proc. Acad. Nat. Sci., Philadelphia, p. 217, 1876. Distribution. — Orca, Alaska (Harriman Expd.) ; British Coasts (Ellis and Solander) ; Greenland (Levinsen) ; New England Coast (Verrill). HALECIUM SCUTUM Clark. Halecium scutum Clark, Proc. Acad. Nat. Sci., Philadelphia, p. 218, 1876. — Bonnevie, Norwegian N. Atlan. Exped., p. 57, 1899. Distributio7i. — Berg Inlet and Yakutat, Alaska (Harriman Exped.) ; Unalaska (beach) and Shumagin Islands, Alaska (Clark) ; North Cape, Norway (Bonnevie). HALECIUM REVERSUM sp. nov. (Plate XXIII, figs. I, 2.) Trophosome. — Colony attaining a height of about one inch. Main stem fascicled, branches simple and alternate, making a flabellate colony. Nonfascicled part of the stem and branches divided into inter- nodes, each of which bears one or two pedicels springing from its proxit7ial portion. Pedicels long, of even diameter throughout, often rugose on proximal portion. Hydrophores with large everted margins and a distinct row of dots. Reduplication of margins distant, when present. Hydranth small for this genus, with about twenty tentacles. Gonosome. — Not present in type specimen. Distribution. — Juneau, Alaska (Harriman Exped.). This species possesses the very exceptional, if not unique, character of having the pedicels spring from the proximal part of the internode instead of the distal portion, as in all other species of Halecium with which I am acquainted. This character appears to be constant. The specimen was dredged from a depth of twenty fathoms. THE HYDROIDS l8l HALECIUM ORNATUM sp. nov. (Plate XXII, figs. 3,4.) 7 ropkosome. — Colony parasitic, branching irregularly. Stems not fascicled, the stem and branches sparsely and irregularly annulated. Pedicels long, of equal diameter throughout. Hydrophores with broad, everted inargins, occasionally reduplicated. Hydranth large, with twenty-four to thirty tentacles. Gonosome. — A single apparently young gonangium was borne on a pedicel just below the hydrophore. It was in form a truncated and deeply annulated cone. Probably the mature gonangium would resemble that found in the next species. Distribution. — Berg Inlet, Glacier Bay, Alaska. Growing on Lafcea gracillima (Harriman Exped.). HALECIUM SPECIOSUM sp. nov. (Plate XXII, figs. I, 2.) Trophosome. — Colony small, attaining a height of about Yi inch. Stem not fascicled, the main stem and branches apparently formed of series of stout pedicels, each giving origin to another pedicel just below the hydrophore. The pedicels thus take the place of stem joints, bending alternately to the right and left, giving a geniculate appearance to the series. Pedicels broad, corrugated proximally and smooth distally. Hydrophores large, with broadly expanded but not everted margins, and a well marked row of dots. There appears to be no re- duplication of the margins. Hydranths very large with twenty-four to thirty short tentacles, a broad oral disk occupied, by the low dome- shaped proboscis. Gonosome. — Gonangia borne on rather long annulated pedicels be- low the hydrophores, particularly on the upper part of the colony ; regularly ovoid in outline, and evenly and beautifully annulated throughout. Distribution. — Yakutat Bay, Alaska (Harriman Exped.). This is the most strikingly ornamented species of Halecium known to the writer. Its manner of growth is exceptional, although not un- known among its allies, and the hydranth is more like the polyp of some actinozoon than of a hydroid. The gonangia are beautiful struc- tures. They seemed to be filled with a granular, ovoid mass, probably a single large sporosac. l82 NUTTING HALECIUM ROBUSTUM sp. nov. (Plate XXIII, figs. 3, 4, 5.) Trophosome. — Stem very thick and fascicled, consisting of an im- mense number of wavy tubes. In the single specimen collected, the main stem divides near its base into three heavy fascicled branches, which themselves branch and subdivide extensively, the fasciculation continuing nearly to the tips of the branches. The entire height of the colony is about three inches. The branching is so profuse that the arrangement of the internodes is obscure. The ultimate branches give off short pedicels and sessile hydrophores in what appear to be clusters or whorls. Pedicels short, tubular, ending in an exceedingly shallow hydrophore. Hydrophores reduced to a mere narrow rim, marked by the internal diaphragm and circlet of dots, the only distinction between pedicel and hydrophore, as the margin of the latter is not appreciably everted. Most of the hydrophores are sessile, being set on mere shoulders of the branch from which they grow. The circlet of dots can only be made out with great difficulty and the use of high magnifi- cation. Hydranths exceedingly numerous and large, covering the branches so as to almost entirely conceal them from view. Tentacles about twenty, surrounding a low conoid proboscis. Go?iosome. — Unknown. Distributio7i. — Berg Inlet, Glacier Bay, Alaska (Harriman Ex- ped.). This species bears some relation to Halecijim densum Calkins, ' but differs from that species in the hydrophores, which are not reduplicated and have straight, not everted, margins. The hydranths are so crowded that a branch resembles an expanded colony of Alcyonai-ia, and appears to be made up entirely of hydranths. Family SERTULARID.^. Trophosoine. — Hydrothecae sessile, more or less adnate by their side to the stem and branches upon which they grow ; always in more than one longitudinal row on each branch, the arrangement usually biserial. Hydranth with a conical proboscis. Gonosome. — Reproduction always by means of planulte, which are developed within the gonangia. No medusae. SERTULARELLA. Trophosome. — Stem and branches divided into regular internodes, each bearing one or two hydrothecae ; nodes oblique. Hydrothecae iProc. Boston Soc. Nat. Hist., Vol. 28, no. 13, p. 343, 1S99. THE HYDROIDS 183 alternate, borne on opposite sides of the stem and branches. Margin usually more or less toothed, aperture usually provided with an oper- culum consisting of more than one segment. SERTULARELLA TRICUSPIDATA (Alder). Sertidaria tricusptdata Alder, Catalogue of the Zoophytes of Northumber- land and Durham, Trans. Tyneside Naturalists' Field Club, p. 21, 1857. Cotuiina tricnspidata A. Agassiz, North American Acalephae, p. 146, 1864. Serttdarella tricnspidata Clark, Proc. Acad. Nat. Sciences Phila. , p. 224, 1876. — Marktanner-Turneretscher, Hydroiden von Ost-Spitzbergen, p. 425, 1895. — Nutting, Hydroida from Alaska and Puget Sound, Proc. U. S. Nat. Mus., Vol. xxi, p. 741, 1899. Distribtttion. — Juneau, Berg Inlet, and Yakutat, Alaska (Harri- man Exped.) ; Shumagin Islands, Semidi Islands, Unalaska, Port Etches, and Kiska Harbor, Alaska (Clark) ; British Coast (Alder) ; New England Coast (A. Agassiz) ; Greenland (Marktanner-Turner- etscher) ; Puget Sound (Nutting). SERTULARELLA POLYZONIAS (Linn.). Sertularia polyzonias Linn., Systema NaturcC, Ed. x, p. 813, 1758. Serttilarella polyzonias Gray, List of the Specimens of British Animals in the Bridsh Museum, part i, Radiata, London, 1847. — Sars, Bidrag til Kunds- kaben om Norges Hydroider, p. 44, 1873. — Clark, Proc. Acad. Nat. Sci. Phila., p. 224, 1876. Cotuiina polyzonias Agassiz, Contributions to the Natural History of the United States, Vol. iv, p. 356, 1864. Serttdarella conica Calkins, Some Hydroids from Puget Sound, Proc. Boston Soc. Nat. Hist., Vol. xxviii, p. 359, 1899. Distributioiz. — Orca, Alaska (Harriman Exped.) ; Port Etches and Nunivak Island, Alaska (Clark) ; British Coasts (Gray) ; North Cape, Norway (Sars) ; New England Coast (Agassiz) ; Puget Sound (Calkins). Calkins, in the reference cited above, identifies a small specimen otherwise identical with S. polyzonias^ as the species S. conica All- man, and says : "The only character, and that a small one, by which to distinguish it from the very wide-spread S. polyzonias is the well- marked wrinkling on the adcauline side of the hydrotheca." Speci- mens from Alaska in the Harriman Collection, agreeing with Calkins's description and figures, have the characteristic gonosome of 6". poly- zonias^ and I therefore consider that I am justified in regarding his specimen as belonging to that species. SERTULARELLA SACCATA sp. nov. (Plate XXIV, figs. 1-3.) Serttdarella mimosa Clark, Proc. Acad. Nat. Sci. Phila,, p. 224, 1876. 184 NUTTING Sertularella gefiicitlata Marktanner-Turneretscher, Die Hydroiden Des k. k. naturhistorischen Hofmuseums, p. 222, 1890. Trophosofne. — Colony consisting of a sparingly branched, non- fascicled stem attaining a height of about one inch. Stem annulated and nonhydrothecate proximally, otherwise bearing alternate hydro- thecEe, one to each internode ; stems and branches erect. Hydrothecae roughly ovate in general outline, with a laterally inclined, broad, smooth, rovmd neck or collar surmounted by a four-toothed aperture and a four-flapped operculum ; below the neck the body of the hydro- theca has three or four broad annular corrugations. Hydra nths with about sixteen tentacles. Gonosome. — Gonangia large, oblong-ovate in general outline, with several, seven to nine, broad annular corrugations. The mature ova are enclosed in an ovoid acrocyst resting on the top of the gonangium. Distrtbiiiion. — Popof Island, Alaska (HaiTiman Exped.) ; Un- alaska, Shumagin Islands, St. Paul Island and Nunivak Island, Alaska (Clark) ; Jan Mayen (Marktanner-Turneretscher). The specimens of this species secured by the Harriman Expedition agree well with the figure given by Clark of specimens that he identi- fied as S. rugosa. The very conspicuous neck, however, would seem to be sufficient to distinguish S. saccata from S. rugosa^ and the same difference exists between the gonangia of the two forms. The figure given by Marktanner-Turneretscher for S. geniculata Hincks differs greatly from Hincks's original description and figure, and agrees well with the present species, except that the hydrotheca) are more closely approximated in the latter. THUIARIA. Trophosome. — Colony branched, the branches divided into unequal internodes, each bearing several pairs of opposite or subopposite hy- drothecae. HydrotheCcB usually deeply immersed in the stem or branch to which they are attached. The branches are alternate, and each springs from an unpaired hydrotheca. Gonosome. — Much as in Sertularia. THUIARIA ARGENTEA (Ellis and Solander). Serin/aria argcntea Ellis and Solander, The Natural History of many curious and uncommon Zoophytes, etc., p. 38, 1786. — Clark, Hydroids of the Pacific Coast of the United States south of Vancouver Island, Trans. Conn. Acad., Vol. iii, p. 251, 1876. — Verrill, Preliminary Check-list Marine Invertebrates Atlantic Coast, etc., p. 18, 1879. — Bergh, Gople- polyper (Hydroider) fra Kara-Havet, p. 335, 1887. — Nutting, Hydroida from Alaska and Puget Sound, Proc. U. S. Nat. Mus., Vol. xxi, p. 741, 1899. THE HYDROIDS 185 Distribution. — Yakutat, Alaska (Harriman Exped.) ; British Coast (Ellis and Solander) ; Kara Sea (Bergh) ; New England Coast (Ver- rill) ; Puget Sound (Nutting) , California (Clark). THUIARIA SIMILIS (Clark). Sertularta similis Qi^AKK, Proc. Acad. Nat. Sci. Phila., p. 219, 1876, Distribution. — Berg Inlet, Glacier Bay, Alaska (Harriman Exped.) ; Hagmeister Island, Alaska (Clark) ; Puget Sound (Nutting, MSS.). THUIARIA VARIABILIS (Clark). Sertularia variabilis Clark, Proc. Acad. Nat. Sci. Phila., p. 221, 1876. Distribution. — Orca, Alaska (Harriman Exped.) ; numerous sta- tions in Alaska (Clark) ; San Miguel Island, California (Clark) ; Puget Sound (Nutting, MSS.). THUIARIA CUPRESSOIDES (Clark). Sertularia cupressoides Clark, Proc. Acad. Nat. Sci. Phila., p. 220, 1876. Distribution. — Yakutat, Alaska (Harriman Exped.) ; Shumagin Islands and Port Moller, Alaska (Clark). THUIARIA COEI sp. nov. (Plate XXVI, figs. 1-3.) Trophosorne. — Colony consisting of a single flexuous stem giving forth regularly alternate branches. Stem three inches high, and divided into irregular internodes each bearing a branch and two hydrothecee on one side and one hydrotheca on the other. Branches divided into irregular internodes, each usually bearing several pairs of hydrothecae. HydrothecEe subopposite, turgid basally, narrowing distally to a hori- zontal aperture which is pointed on its outer side. An upward pro- jecting point of chitine at the bottom of each hydrotheca. Gonosome. — Gonangia top-shaped, or obconical, with a pronounced round collar and rather broad aperture. Proximal portion broadly cor- rugated, and narrowing basally to a short curved pedicel. Distribution. — Dutch Harbor, Alaska (W. R. Coe, Harriman Exped.). This is a very distinct species, and the top-shaped gonangia are quite different from any others of the genus that I have seen. THUIARIA FABRICII (Levinsen). (Plate xxiv, figs. 4, 5.) Sertularia fabricii Levinsen, Meduser, Ctenophorer og Hydroider fra Gron- lands Vestkyst, p. 48, 1893. — Calkins, Some Hydroida from Alaska and Puget Sound, Proc. Boston Soc. Nat. Hist., Vol. xxviii, p. 361, 1899. l86 NUTTING Distribution. — Dutch Harbor, Alaska (Harriman Exped.) ; Green- land (Levinsen) ; Puget Sound (Calkins). A specimen in the Harriman collection agrees perfectly with the descriptions and figures of both Levinsen and Calkins. I have directly compared it with specimens of Serttdaria argentea from England, and find that the two species are evidently distinct, T. fabricii differ- ing from 6". argentea in the following particulars. The colony is much more bushy in appearance, and more compactly branched. The hydro- thecas are more nearly in pairs, and much inore closely approximated, are more densely corneous and have a more delicate and less clearly defined aperture. The gonangia are considerably larger and of thinner texture, and are only occasionally armed with lateral spines. It should be explained that Levinsen regards his Sertularia fabricii as identical with the Serttilaria argentea of authors, and gives it the name S. fabricii. My opinion is that the species is distinct, and I recognize the name given by him because he has correctly described and figured the species, although not classing it as distinct. It should, however, be placed in the genus Thuiaria^ for it comes well within that genus as here defined. THUIARIA TURGIDA Clark. (Plate XXV, figs. 4-6.) Thuiaria turgida Clark, Proc. Acad. Nat. Sci. Phila., p. 229, 1876. — Nut- ting, Hydroida from Alaska and Puget Sound, Proc. U. S. Nat. Mus., Vol. XXI, p. 741, 1899. Distributio7t. — Sitka, Orca, Popof Island, and Dutch Harbor, Alaska (Harriman Exped.) ; Port Etches, Shumagin Islands, Semidi Islands, and many other points in Alaska (Clark). THUIARIA GIGANTEA Clark. Thuiaria gigantea Clark, Proc. Acad. Nat. Sci. Phila., p. 230, 1876 — Nut- ting, Hydroida from Alaska and Puget Sound, Proc. U. S. Nat. Mus., Vol. XXI, p. 741, 1899. Distribution. — Kadiak and Popof Island, Alaska (Harriman Exped.) ; St. Paul Island, Hagmeister Island, Unalaska and Kiska Harbor, Alaska (Clark) ; St. Paul Island (Nutting). THUIARIA THUIARIOIDES (Clark). Sertularia thidarioides Clark, Proc. Acad. Nat. Sci. Phila., p. 223, 1876. Distribution. — Yakutat, Alaska (Harriman Exped.) ; Nunivak Island and Chignik Bay, Alaska (Clark). THE HYDROIDS 1 87 THUIARIA ELEGANS sp. nov. (Plate XXV, figs. 1-3.) Trofhosome. — Colony consisting of a central nonfascicled stem branching in a plumose manner and attaining a height of about six inches. Stem bearing hydrothecae throughout its length, divided by oblique nodes into long and irregular internodes, each of which usually bears three or four branches ; branches alternate, pinnately arranged, unbranched proximally, and distally dividing into a number of branch- lets ; internodes of stem irregular, but each bearing normally more than one pair of hydrothecre. Hydrothecae subalternate, short, pitcher- shaped, with a double curve in front and an even aperture much like the top of a pitcher ; operculum composed of a single flap. Gonosome. — Gonophores borne on the upper sides of the distal ends of the branches in a closely set double row. The individual gonangium is slender, oblong-oval, with a tiamcated top, an internal distal plug which appears as a dark collar, and an internal mass of developing sex elements. Distribution. — Berg Inlet, Glacier Bay, 20 fathoms ; Dutch Har- bor, Alaska (Harriman Exped.). THUIARIA COSTATA sp. nov. (Plate xxvi, figs. 4-9.) Trophosome. — Colony usually a single stem giving forth alternate branches, the whole having a plumose appearance, stem simple, straight, the lower part composed of regular internodes, each bearing a pair of subopposite hydrothecae, the upper part divided into regular internodes, each bearing a branch and three hydrothecae ; nodes oblique. Branches alternate and themselves branching dichotomously, divided into unequal internodes, each bearing more than two suboppo- site hydrothecae. Hydrothecae turgid below and narrowing above into a short neck which ends in a round aperture facing upward. A chlti- nous spine projects downward from the lower inner side of each hy- drotheca. Gonosome. — Gonangia borne profusely on both faces of the stem and often on the proximal ends of the branches ; oblong-ovate, with a short, small neck and round terminal aperture, the gonangia are orna- mented with about five compressed longitudinal ridges, the crests of which are colored black. General color of the gonangia orange browm. Distribution. — Yakutat, Alaska. Abundant (Harriman Exped.). This species resembles Sertularia itzconsta?ts Clark, but differs considerably, particularly in its gonosome, which is very strongly marked. l88 NUTTING Family PL UMULARID^^. Trophosome. — Hydrothecae cup-shaped, usually more or less adnate to the stem or bi'anches, and always arranged on one side only of the hydrocladia, or branches, on which they grow. Nematophores present. Gonosome. — Reproduction by means of planulae. No medusae. PLUMULARIA. Trofhosome. — Hydrocladia unbranched alternate, nematophores on slender pedicels; hydrothecae without marginal teeth. Stem not canal- iculated. Gonosome. — Gonangia oval, without corbulae or protective struc- tures of any kind. PLUMULARIA LAGENIFERA Allman. Plwnularia lagenifera P^XAMKH, Jour. Linn. Soc. Zool., xix, p. 157, 1885. — Nutting, American Hydroida, Part i, The Plumularidae, p. 65, 1900. Plumularia califorjiica Marktann'er Turneretscher, Annalen des k. k. Naturhist. Hofmuseums, v, No. 2, p. 255, 1890. — Nutting, Hydroida from Alaska and Puget Sound, Proc. U. S. Nat. Mus., Vol. xxi, p. 741, 1899. Distribution. — Berg Inlet, Popof Island, Alaska (Harriman Exped.) ; Puget Sound (Nutting) ; Coast of California (Nutting). PLUMULARIA PALMERI Nutting. Plioniilaria palmcriYi,Xi'X:'X\^G, American Hydroida, Part i, The PlumularidiE, p. 65, 1900. Distribution. — Victoria, B. C. (Harriman Exped.) ; San Diego. California (Nutting) . This is the only species in the collection that was not from Alaska. It seemed best to include it in the list, particularlv as a new locality is thereby noted. THE HYDROIDS 189 BIBLIOGRAPHY. The following list includes all the publications referred to in this Report on Hydroida. It does not include papers that were consulted and found to contain nothing pertinent to the immediate subject of the report. Agassiz, Alexander. 1865. North American Acalephse. Illustrated Catalogue, Museum Compara- tive Zoology, No. II. Agassiz, Louis. 1862. Contributions to the Natural History of the United States, IV. Alder, Joshua. 1857. A Catalogue of the Zoophytes of Northumberland and'Durham. Trans. Tyneside Naturalists' Field Club. AUman, G. J. 1859. Notes on the Hydroid Zoophytes. Annals and Mag. Nat. Hist., Third Series, Vol. IV, pp. 52 and 141. 1864. On the Constuction and Limitation of Genera among the Hydroida. Annals and Mag. Nat. Hist., Third Series, Vol. XIII, No. 77." 1870-1872. Monograph of the Gymnoblastic or Tubularian Hydroids, Ray Society. 1888. Report on the Hydroids dredged by H. M. S. Challenger, Part 2. 1885. Description of Australian, Cape and other Hydroids, mostly new, from the collection of Miss H. Gatty. Journ. Linnsean Society, Vol. XIX. Bergh, R. S. 1887. Goplepolyper (Hydroider) fra Kara-Havet. Bonnevie, Kristine. 1898. Zur Systematik der Hydroiden. Zeitschr. Wissen. Zoologie, Jahrb. 63 1899. Hydroida of the Norwegian North Atlantic Expedition. Calkins, G. M. 1899. Some Hydroids from Puget Sound. Proc. Boston Soc. Nat. Hist., Vol. XXVIII, No. 13. Clark, S. F. 1876. Report on the Hydroids collected on the Coast of Alaska and the Aleu- tian Islands, by W, H. Dall. Proc. Acad. Nat. Sciences, ',Philadelphia. 1876. Description of New and Rare Species of Hydroids from the New Eng- land Coast. Trans. Conn. Acad. Sci., III. 1876. The Hydroids of the Pacific Coast of the United States, South of Van- couver Island. Trans. Conn. Acad. Sci., III. Ellis and Solander. 1786. The Natural History of many Curious and Uncommon Zoophytes. Fleming, J. 1828. A History of British Animals. Edinburgh Philos. Journ., XIII. Hartlaub, Clemens. Die Hydromedusen Helgolands. Wissench. Meeresuntersuchungen. II Band. 1 9© NUTTING Hincks, Rev. Thomas. 1868 British Hydroid Zoophytes 1880 On New Hydroida and Polyzoa from Berent's Sea. Annals and Mag. Nat. Hist,, Fifth Series, VI. Kirchenpauer, G. H. 1884. Nordische Gattungen und Arten von Sertulariden. Abhand. a. d. Geb. d. Naturwiss., herausgegeb. vom Naturwiss., Verein, VIII, Pt. 3. Lamarck, J. B. P. A. de. 1836. Histoire Naturelle des Animaux sans Vertebres, 2d Edition. Lendenfeld, R. von. 1883 iJber Coelenteraten der Sudsee, V. Mittheilung. Zeitschrift fur Wis- senscli. Zoologie, XXXVIII. Levinsen, G. M. R. 1886 Annvilata, Hydroida, Anthozoa, Porifera, in : Vid. Udbytte af Kanon- baaden, Haucks Togter i. 1892 Om Fornyelsen af Ernaeringsindividerne hos Hydroiderne. Siertryk af Vidensk. Meddel. fra den naturhist. Fornening i Kbhvn. 1893 Meduser, Ctenophorer, og Hydroider fra Gronlands Vestkyst, Copen- liagen. Linnaeus, C. 1758 Systema Naturse, loth Edition. 1767 Systema Naturae, 12th Edition, Pt. II. Marktanner-Turneretscher , Gottlieb . 1890 Die Hydroiden des k. k. Naturhist. Hofmuseums, V. 1895 Hydroiden von Ost-Spitzbergen. Zool. Jahrb., VIII. Abth. Mereschkowsky, C. 1878 New Hydroida from Ochotsk, Kamtschatka, and other parts of the North Pacific Ocean. Annals and Mag. Nat. Hist., Dec. Nutting, C. C. 1899 Hydroida from Alaska and Puget Sound. Proc. U. S. Nat. Museum, Vol. XXI, No. 1 171. 1900 American Hydroids, Part I., The Plumularidie. U. S. Nat. Museum, Special Bulletin No. 4. Sars, M. (?) 1862 Bemserkninger over fire norske Hydroider; Vid. Selsk. Forh. 1873 Bidrag til Kundskaben om norges Hydroider. Schultz, Franz Eilhard. 1872 Nordsee Expedition, III, Coelenteraten. Schneider, K. C. 1897 Hydropolypen von Rovigno, nebst iibersicht iiber das system der Hy- dropolypen in allgemeinen. Zool. Jahrb., Syst. abth. bd., 10. Segerstedt, M. 1899 Bidrag til Kannedomen om Hydroid-Faunen ved Sveriges Vestkust, Stockholm. Verrill, A. E. 1873 Brief Contributions to Zoology from the Museum of Yale College, No. XXIII, American Journal of Science. THE HYDROIDS 191 Verrill, A. E. 1874 Invertebrate Animals of Vineyard Sound. 1879 Preliminary Check List of the Marine Invertebrates of the Atlantic Coast, from Cape Cod to the Gulf of St. Lawrence. Winther, Georg. 1879 Fortegnelse over de i Danmark og dets Nordlige Bilande f undue Hv- droide Zoophyter. Wright, J. Strethill. 1859 Observations on British Zoophytes. Edinburgh New Philos. Journ., New series, Vol. VII. PLATE XIV. Fig. I. Coryne brachiata Nutting. Part of colon j. 2. Single gonophore (enlarged). 3. Syncorync cximia AUman. Part of colony. 4. Single hjdranth with budding medusa. (192) Proc. Wash. Acad. Sci. Vol. Ill Plate XIV ALASKA HYDROIDS PLATE XV. Fig. I. Garveia annulata Nutting. Part of colony, showing hvdranths and gonophores. 2. Single hydranth, showing pseudo-hydrotheca (enlarged). 3. Eudendrium vaginatum Allnian. Part of colony, showing hydranths and gonophores. 4. Single hydranth, showing pseudo-hydrotheca (enlarged). 5. Cluster of female gonophores. 6. Single gonophore, with expanded chitinous collar (enlarged). (194) PROC. Wash. Acad. Sci. Vol. Ill Plate XV ALASKA HYDROIDS PLATE XVI. Fig. I. Tubularia /tarrtmant"Nutting. Single hydranth with gonophores. 2. Three gonophores, showing apical tentacles and developing actinule (enlarged). (196) Proc. Wash. Acad. Sci. Vol. Ill Plate XVI ALASKA HYDROIDS PLATE XVII. Fig. I. Clytia caliculata (Ilincks). Single hydrotheca (enlarged). 2. Another hydrotheca (enlarged). 3. Clytia compressa (Clark). Hydrothecae (enlarged) showing different degrees of thickening of the hydrothecal walls. 4. Single gonangium (enlarged). 5. Campatiulafia ritteri Nutting. Part of colony (enlarged). (19S) Proc. Wash. Acad. Sci. Vol. Ill Plate XVII ALASKA HYDROIOS PLATE XVIII. Fig. I. Campanularia reduplicata Nutting. Part of colony, showing iijdro- thecae and gonangium (enlarged). 2. Campanularia urceolata Clark. Part of colonv, showing hydrothecae and gonangia (enlarged). 3. Campanularia speciosa Clark. Single hvdrotheca (enlarged). (200) Proc. Wash. Acad. Sci. Vol. Ill Plate XVlli ALASKA HYDROIDS PLATE XIX. Fig. I. Campatiularia regia Nutting. Single hydrotheca, showing hjdranth (much less enlarged than the other figures). 2. Another hydrotheca, showing reduplication of margin. 3. Hydrotheca of C. spectosa Clark (drawn to the same scale as fig. 1, to show comparative size). 4. Obelia borealis Nutting. Part of colony, showing hydrothecae and gonangium (enlarged). 5 and 6. Gonangia (greatly enlarged). (202) Proc. Wash. Acad. Sci. Vol. II Plate XIX ALASKA HYDROIDS PLATE XX. Fig. I. Ohelia dubia Nutting. Part of colony (enlarged). 2. GonothyrcEa inornata Nutting. Part of colony, showing hydrothecse and gonangium (enlarged). 3 and 4. Gonangia (enlarged). (204) Proc. Wash. Acad. Sci. Vol. Ill Plate XX ALASKA HYDROIOS PLATE XXI. Fig. I. Campa7iulina rugosa Nutting. Part of colony, showing hydrothecse and gonangia (enlarged). 2. Gonangium, showing developing medusa (enlarged). 3. Lafoea ad/icerens Nutting. Part of trophosome (enlarged). 4. Part of transverse section of gonosome (enlarged). 5. Grammaria inimeisa Nutting. Part of main stem (enlarged). 6. Portion of branch with the peripheral tubes removed to show connection of hjdrotheciE with axial tube (more enlarged than fig. 5). (206) Proc. Wash. Acad. Sci. Vol. Ill Plate XXI ALASKA HYDROIDS PLATE XXII. Fig. I. Halccium spcciosum Nutting. Part of colony, showing hjdrophores and gonangia (enlarged). 2. Single hydranth (greatly enlarged). 3. Halecium ornatum Nutting. Part of colony, showing hydrophores (en- larged ) . 4. Single immature gonangium (enlarged). (208) Proc. Wash. Acad. Sci. Vol. Ill Plate XXII ALASKA HYDROIDS PLATE XXm. Fig. I. Halecium reversum Nutting. Part of colony, showing internodes and hydrophores (enlarged). 2. Single hydranth with hydrophore (enlarged). 3. Halecium robusium Nutting. Tip of branch, showing expanded hydranths (enlarged). 4. Part of branch with soft parts removed to show the hydrophores (en- larged). 5. Single hydranth with its hydrophore (greatly enlarged). (210) Proc. Wash. Acad. Sci. Vol. Ill Plate XXII "^.T: ALASKA HYDROIDS PLATE XXIV. Fig. I. Sertularella saccata Nutting. Part of colony, showing hjdrothecae and gonangia with acrocysts (enlarged). 2. Three hjdrothecae (still more enlarged). 3. Single hydrotheca, showing operculum (drawn to same scale as Fig. 2). 4. T/iutaria fabrtcii {'Levinsen). Part of branch showing hydrothecse and gonangia (enlarged). 5. Front view of part of branch (enlarged). (212) Proc. Wash. Acad. Sci. Vol. Ill Plate XXIV ALASKA HYDROIDS PLATE XXV. Fig. I. Thuiaria elegans Nutting. 2. Front view of branch (much enlarged). 3. Gonangium (much enlarged). 4. Thuiaria turgida Clark. 5. Two pairs of hydrothecse (much enlarged). 6. Front view of branch (enlarged). (214) pRoc. Wash. Acad. Sci. Vol. Ill Plate XXV STH B CjAPiKOW. ; ALASKA HYDROIDS PLATE XXVI. Fig. I. Thuiaria coei Nutting. Part of branch, showing hjdrothecje and gonangia (enlarged). 2. Lateral view of hydrotheca (enlarged). 3. Single gonangium (enlarged). 4. Thuiaria costata Nutting. Part of main stem, showing origin of branches (enlarged). 5. Front view of terminal branches (enlarged). 6. Two pairs of hjdrothecae (greatly enlarged). 7. 8, 9. Gonangia (enlarged). (216) Proc. Wash. Acad. Sci. Vol. Ill Plate XXV I ALASKA HYDROIDS PROCEEDINOS OF THE WASHINGTON ACADEMY OF SCIENCES Vol. III., pp. 217-223. July 13, 1901. PAPERS FROM THE HARRIMAN ALASKA EXPEDITION. XXII. ENTOMOLOGICAL RESULTS (14): THE ODONATA. By Rolla p. Currie. The Odonata collected by Professor Trevor Kincaid during the Harriman Expedition comprise eight species, represented by eighty-nine specimens. None of these appear to be new ; yet the collection is interesting in that it serves to extend the known range of certain forms and to add to our knowledge of the Odonata fauna of Alaska. No paper on the dragonflies of this territory has been hitherto published; and only three species, additional to the eight collected by the Harriman Expedition, have been pre- viously reported from Alaska. These are JEnallagma annexum (Hagen), yEschna sitchensis (Hagen) and ^schna clepsydra (Say), thus making eleven species. Family A GRIONID^^. Subfamily AGRIONIN^. LESTES species (?). One female belonging to some species of this genus was taken at Fox Point, July 26-28. The species of Lestes are separated, mainly, by the characters of the male abdominal appendages, and females taken Proc. Wash. Acad. Sci., July, 1901. (217) 2l8 CURRIE singly cai^not always be determined with certainty. The following description of the specimen is given for future reference : Length 34 mm.; abdomen 26; hind wing 20.7; pterostigma 1.7. Blackish-brown. The following parts are pale yellowish, viz : under parts of head, lips, genas (except a few spots), rlijnarium, tips of two basal joints of antennjB, mid-dorsal thoracic carina, humeral stripe (which is wider below), sides of thorax inferiorly (except 2d lateral suture above and some spots near coxte), and venter of thorax (except middle line v^^hich is wider behind) . Abdomen yellowish, marked above with dark metallic green as follows : on segment i , a narrow longitudinal median line, widening behind, and divided into two large divaricate spots ; on 2, a mid-dorsal band, divided by a median line which is widened in front, the band widened and orbicular posteriori}' (enclosing a pale spot on either side) and connected with the dark apical ring by a short stalk ; 3-5 similar, but the dividing line uniformly narrow, the band forming a point anteriorly and barely reaching the base ; 6 without posterior pale spots, the bands otherwise as in 3-^ ; on 7 and 8 the band is wider, not separated, not stalked behind; on 9 and 10 they narrow posteriorly; the bands on 6-10 are blackish-brown, hardly metallic. Sides of abdomen with indistinct dark markings, these principally apical. Venter dark. Tenth segment with its apical margin triangularly notched above, scarcely elevated. Anal append- ages two-thirds the length of 10, conical, pale, black on apical half. Genital valves pale, their edges dark apically and minutely denticulate ; valvular processes dark, about as long as appendages. Legs pale, the femora without, tibiae within, and the tarsi, black. Pterostigma brown. ENALLAGMA CALVERTI Morse. Enallagma calverti Morse, Psyche, vii, No. 227, p. 208, March, 1895. (Male described.) — Williamsom, Ent. News, xi, No. 5, p. 455, text fig, b, PI. IX, figs. 5, 9 and 10, May, 1900. (Female described and male ap- pendages figured.) Kukak Bay, June 29- July 5 ; Cook Inlet, July 2 1 ; Kadiak, July 20 ; Juneau, July 25 : thirty-three males and nineteen females. These specimens average larger than those I have seen from the United States: Length, 4.5 meters) high, at Kasilof ' 10 to 25 feet (3 to 7.5 meters) high and 8 inches (20 cm.) in diameter. The following specimens have been examined : Cook Inlet. — At Homer, Sunrise, and Kasi- lof, Walter H. Evans, iS97(Nos. 470, 49i),i89S (No. 693). At Kenai, F. A. Walpole, 1900 (No. 1 143). Between Cook Inlet and the Tanana River, probably from the lower Sushitna, E. F. Glenn, 1899. Tukon Valley. — Near the junction of Forty- mile Creek and the Yukon, Frederick Fun- ston, 1S93 (Nos. 39, 42). At Fort Yukon, F. C. Schrader, 1899. Dr. P. A. Rydberg has published recently,^ while this paper was in press, a Salix perrostrata., based primarily on specimens collected by himself near Hermosa, in the Black Hills of South Dakota, and to that species he has referred a specimen collected by Mr. R. S. Wil- liams at Dawson, Yukon Territory, besides assigning the species a range northwestward to Alaska. While his bibliographical references indicate that the species is a segregate from bebbiana., the author gives no comparison of distinguishing characters. I am unable to find in his description anything to distinguish our Alaskan specimens from what I take to be typical bebbiana.^ whatever may prove to be the re- lation of that species to the Black Hills willow. Fig. 17. Salix beb- biaiia Sargent: a, fruit- ing catkin, natural size ; b, capsule, with pedicel, scale, and nectary, enlarged two diameters. 2. SALIX SITCHENSIS Sanson. Satin Willow. Plate XXXIII. Salix sitchensis Sanson ; Bongard, Mem. Acad. Petersb. VI. Math. & Nat. 2 : 162. 1831. ^ Variously spelled Kassiloff, Kassilof , Kussilof , Kussilow, etc. 2 Bull. N. Y. Bot. Gard. 2 : 163. 1901. 308 COVILLE Salix sitc/iettsis is ordinarily a large shrub or small tree, individual specimens often reaching lo to 15 or rarely 30 feet (3 to 9 meters) in height, with a trunk four to six inches or occasionally even a foot (10 to 30 cm.) in diameter. In exposed situations it sometimes fiow^ers and fruits as a small shi'ub a few feet in height, and on the bare morainal gravels at Muir Glacier it even joined the other smaller willows in becoming almost prostrate. In addition to the attractive- ness of a rather graceful form, this willow bears a foliage of singular beauty. On close inspection the leaves present a satiny sheen of daintiest delicacy and softness, varying in intensity with the uneven- ness of the leaf surface. This appearance, largely lost in the dried specimens, is due to a dense covering, on the louver surface of the leaves, of closely appressed short hairs. No other Pacific Coast willow has the same character, and when one has known it in the field he can, by its foliage alone, readily distinguish this satin willow from all the other species. The leaves are oblanceolate to obovate, broadly acute to obtuse at the apex, narrowed at the base, entire or sometimes remotely denticulate, and when fully developed about 4 to 6 cm. long, except on vigorous shoots, where they often reach 10 cm. The flowers of the male catkins have but a single stamen each. All other Alaskan willows have two stamens. Salix sitchensis is a characteristic plant of the Sitkan floral district, extending from the southernmost limit of Alaska northward and west- ward along the coast to Cook Inlet and the eastern end of Kadiak Island. It was observed at as high an elevation as 1,400 feet. Where the forests of Sitka spruce were dense this willow grew along the streams and beaches and in similar sunshin}^ situations, but where the forest was open or wanting it might occur anywhere on the solid up- land at the proper elevation. South of Alaska, Salix sitchensis ex- tends along the coast to California, and along the mountains through British Columbia into the Cascade Range of Washington and Oregon. The wood of the satin willow is sometimes used by the Indians of southern Alaska in drying salmon, since its smoke does not give the fish a bad taste as do some other kinds of fuel. Its pounded bark is sometimes applied directly to a cut or wound, to assist in healing. The Tlinkit tribes, which extend from Yakutat Bav nearly or quite to Dixon Entrance, call it chaktl, or more precisely, c/i^a'-tlk. ^ They give the same name to other and probably to all the species of willow in that region. This shows how little the willows enter into their use- ful arts, for wherever in the United States the willow is employed in ^ The diacritic marks used are those of the Century Dictionary. THE WILLOWS OF ALASKA 3O9 basket making or other arts, the widely differing qualities of the various species have caused the Indians to give them discriminating names. Among the natives of Kadiak the word for various other species of willow, 7iimuyok (^ni-mo-ydk')^ is doubtless applied to the satin willow also. Specimens of siichensis have been examined as follows : Behm Canal. — At " Shehshooh ' Lake," M. W. Gorman, 1895 (No. 38). Wrangell. — On the hillside back of the town, Coville and Kearney (No. 426), Trelease and Saunders (Nos. 3352, 3363), Walter H. Evans, 1897 (No. 78). Sitka. — Along Indian River, Coville and Kearney (No. 838), A. Kellogg, 1867 (175, in part), Walter H. Evans, 1897 (No. 22S). It was here, undoubtedly, that Henry Mertens, the botanist of Liitke's Expedition, in an excursion from Sitka to the summit of the neighbor- ing Mount Verstovia, in the year 1827, discovered this willow. And here the writer on June 16, 1899, on a similar excursion found it still growing. The dense forests of spruce about Sitka do not afford suit- able conditions for the tree, and it was not observed at any other point in the vicinity. Exactly similar was the situation in Mertens' time. He says, " Here alone [at the crossing of a ' wild mountain current '] is seen the solitary species of Salix which the environs of Sitcha afford." ^ Stephens Passage. — At Taku Harbor, Coville and Kearney (No. 481). Juneau. — In and above Silver Bow Basin, Coville and Kearney (Nos. 566, 594, 2534), Walter H. Evans, 1897 (No. 155)- Skagway. — At Glacier on the White Pass railroad, F. A. Walpole, 1900 (No. 1264). Glacier Bay. — Abundant at various points, Coville and Kearney (Nos. 624, 633, 634, 698a, 701), Trelease and Saunders (Nos. 3354, 3355? 3377? 3378)? Brewer and Coe (Nos. 38, 39), Kincaid. La Perouse Glacier. — Near the beach, west of the glacier, Fernow. Takutat Bay. — At many points, Coville and Kearney (Nos. 998 to 1000, 1082a, 1 121, 1 154), Trelease and Saunders (Nos. 3357? 335^, 3360,3361,3369)- ^ _ . Kadiak Island. — At English Bay, about 8 miles south of Kadiak* village, Coville and Kearney (No. 1440). ^ Supposed to be the lake at the head of Yes Baj^ 2 See Hooker, Bot. Misc. 3: iS. 1833. ''^This is Woman's Bay of some charts, having been named babia {-voiiian's) by the Russians. W. H. Osgood and F. A. Walpole report that it is known at Kadiak by the name English Bay only. 3IO COVILLE 3. SALIX NUTTALLII Sargent. Nuttall Willow. Salix flavescens NuTT. Sylv. i : 65. 1842, not Host, 1828. Salix ituiialluSA.KG^^T, Gard. «S: For. 8: 463. 1895. A small tree 3 to 5 meters (about 10 to 16 feet) in height and com- monly 7.5 to 10 cm. (3 to 4 inches) in diameter. The leaves are ob- ovate to oblanceolate, tapering at the base, acute or sometimes obtuse at the apex, entire or occa- sionally somewhat crenate- denticulate, the lower surface with some scattered appressed hairs or, on vigorous shoots, a somewhat velvety pubes- cence, but without the satiny lustre of sitchensis. When in flower this willow is conspic- uous for its leafless twigs and the prominence of the black, sparsely hairy catkin scales. The original specimens were collected by Nuttall "in the range of the Rocky Mountains " at some point near the present route of the Union Pacific railway from Nebraska to Oregon. Our Alaska material is as follows : Skag^vay to Lake Ben- nett.— From Skagway to Glacier on the White Pass railway, Coville and Kearney (Nos. 493, 503), F. A. Walpole, 1900 (No. 1076). From Bennett to Log Cabin, F. A. Walpole, 1900 (Nos. 10S3, 1 271). AtLakeBennett, J. B. Tarleton, 1899 (No. 21). Cook Inlet. — At Halibut Cove in Kachemak Bay, Coville and Kearney (No. 2416), the specimens in leaf only. The name Salix nuttallii is ordinarily used to designate a species (or perhaps a group of species) finding its eastern limit in the Rocky Mountains and its western limit at the shore of the Pacific. It occurs as far south as Utah and Arizona, and in California extends south- ward along the coast to the bay of Monterey and along the Sierra Ne- vada to the San Bernardino range. Northward from California it is Fig. iS. Salix 7tHttallii Sargent: «, pistillate catkin, natural size; b, pistillate flower, enlarged six diameters ; c, d, leaves, natural size. THE WILLOWS OF ALASKA 3II abundant along the coast and in the mountains to British Columbia. The form that occurs along the Pacific Coast from California to Brit- ish Columbia differs in several respects from the Rocky Mountain plant and has been designated, either as a species or a variety, by the names brachystachys^ capreoides^ and scolder iana. My attention has recently been called by Professor C. V. Piper to the fact that this last name, scouleriana ^ is a valid name, and the oldest name, for the Pacific Coast plant, and is older than the name nuttallii. It ap- pears that Andersson in making a critical identification of the type specimens of scouleriana^- found that the leaf specimen belonged to sitchensis^ while the flowering specimen, which therefore rei^resented the real scouleriana., he referred to Salix Jlavescens Nutt. Professor Sargent, finding Jlavesceits to be a homonym and considering the Rocky mountain plant and the Pacific Coast plant to belong to the same species, followed a course which was inadmissible under the circumstances and gave the species a new name, nuttallii^ instead of taking up scolder iana. Until a critical revision of these willows has been made it will probably be most convenient and least confusing to treat scouleriana and Jiidtallii as distinct species. Salix nidtaUii., like Salix bebbiana^ evidently reaches Alaska by an extension of its range in the interior of British America, through the humid Sitkan flora, to the coast at Skagway and Cook Inlet. Salix scouleriana apparently does not extend as far north as Alaska. Its only claim to admission into that flora rests on some imperfect young specimens from Wrangell, without flowers or fruit, which may be referable to sitchensis. Kellogg's specimens of scouleria^ia., re- ported as collected at Kadiak and Sitka, in fact came from Van- couver, British Columbia. 4. SALIX ALAXENSIS (Anders.) Coville. Feltleaf Willow. Plate xxxiv. Salix speciosa Hook. & Arn. Bot. Beech. Voy. 130. 1832, not Host, 1828. Salix speciosa alaxensis Anders, in DC. Prodr. iS"*: 275. 1868. Salix alaxensis Coville, Proc. Wash. Acad. Sci. 2 : 280. 1900. Salix longistylis Rydberg, Bull. N. Y. Bot. Gard. 2: 163. 1901. This willow differs notably in its foliage from all the other Pacific Coast species, so much so, indeed, that Hooker and Arnott, the con- servative authors of the ' Botany of Captain Beechey's Voyage in the Blossom,' described the plant from specimens devoid of flowers or fruit. The under surface of the leaves is covered with a dense white iBarratt; Hook. Fl. Bor. Am. 2 : 145. 1838-9. 2 See Bebb, Gard. & For. 8 : 373. 1S95. 312 COVILLE wool or felt made up of curled and tangled hairs, presenting an appear- ance quite different from the velvety, or satiny, or cobwebby pubes- cence of other species. The leaves are narrowly to broadly elliptical- lanceolate, acute at the apex and base, smooth or nearly so on the upper surface, of an apparently thick texture, due largely to the dense woolly covering of the lo^ver surface, often corrugate-reticulate, the margins of the very young leaves often minutely glandular-denticulate, at maturity usually entire and sometimes revolute, the stipules usually present, narrowly linear-lanceolate to filiform, and entire. The fruit- ing catkins are very long and thick, some of those collected reaching a length of 14 cm, and a diameter of 1.8 cm. The stout twigs are either smooth or densely hairy, and sometimes they have a decidedly blue color from the presence of a conspicuous bloom. Salix alaxensis extends from the northern part of Alexander Archipelago westward along the Alaskan coast to the peninsula, northward along the eastern side of Bering Sea through Bering Strait to Cape Lisburne, and through the interior of Alaska to the Mackenzie River in British America. East of Kadiak it is associated with other species of tree willows, but west of that point it is the only willow that presents the form and dimensions of a tree. From the Shumagin Islands eastward full-grown specimens are ordinarily about 20 to 30 feet (6 to 9 meters) in height, with a trunk four to six inches ( 10 to 15 cm.) in diameter. Under suitable conditions it doubtless reaches a still larger size. On the wind-swept Aleutian Islands, like all other arboreal vegetation, it appears to be wanting, but on the mainland to the north it again appears, on Buckland River, at the eastern end of Kotzebue Sound, reaching a height of 16 to 20 feet (according to Seemann in the 'Botany of the Herald'), farther north in the sound only eight feet, and at its northern limit, Cape Lisburne, being reduced to a shrub only two feet high. Like Salix sitchensis^ it becomes almost prostrate on the naked gravels at Muir Glacier, while only a few miles away, on older glacial deposits which have been reclothed with an abundant vegetation of shrubs, it develops into a handsome small tree, a difference of habit illustrating the marked effect of different local conditions. The original specimens of Hooker and Arnott's speciosa came from Kotzebue Sovuid, those of Andersson's speciosa alaxensis from "Alaxa Americae occidentali-borealis." The feltleaf willow holds an important economic relation to the mining industry and to human existence generally in northern Alaska, for while spruce timber apparently does not extend north of the divide THE WILLOWS OF ALASKA 313 separating the waters of the Yukon and the rivers flowing into Kotzebue Sound from those of the Arctic coast, this tree-willow does extend be- yond that divide to the headwaters of the Arctic rivers, and in many places furnishes the only wood available as fuel to Indians, prospec- tors, and explorers. Mr. Rydberg's Salix longistylis^ based on a specimen collected at the mouth of Klondike Creek, Yukon Territory, although compared by him only with Salix sitchensis^ is clearly identical with the present species. Specimens of Salix alaxensis have been examined as follows : Skagxvay and White Pass. — At Glacier on the White Pass railroad, and at Skagway, F. A. Walpole, 1900 (Nos. 1071, 1077, 1106). Lake Bennett. — On the shore and uplands, J. B. Tarleton, 1S99 (No. 12, in part). Glacier Bay. — At various points about the bay, Coville and Kearney (Nos. 622, 639, 663, 696, 698, 699, 702), Trelease and Saunders (Nos. 3344103348, 3364), Brewer and Coe (No. 57), Walter H. Evans, 1897 (No. 156). Takutat Bay. — Abundant on the west side of the bay, and at its northern end and arms, Coville and Kearney (Nos. 996, 105S, 11 20, 1 149), Trelease and Saunders (Nos. 3349, 3359? 347°, in part). Prince William Sound. — At Port Wells, Coville and Kearney (No. 1270), Trelease and Saunders (No. 3372), Brewer and Coe (No. 136). Cook hilet. — At several points between the head of Cook Inlet and the Tanana River, E. F. Glenn, 1S99. Sparingly on the delta of a glacier at Halibut Cove, Kachemak Bay, Coville and Kearney, No. 2419). Kadiak Islatid. — Sparingly on the lower mountain slopes in Eng- lish Bay, Coville and Kearney (No. 1441). Near Kadiak village, Trelease and Saunders (No. 3351), Brewer and Coe (No. 223). Shu77iagin Islands. — Sparingly at Sand Point and in other localities on Popof and Unga, Coville and Kearney (No. 1622), Trelease and Saunders (No. 3343), M. W. Harrington, 1 87 1-2. At Mist Har- bor, Nagai Island, C. H. Townsend, 1S93. Alaska Peninsula. — At Kukak Bay, Coville and Kearney (No. 1622), Trelease and Saunders (No. 3350) ; in Stepovak Bay, Palache ; and at Nushagak, C. L. McKay, 1881. Yukon Valley. — Headwaters of Koyukuk River, F. C. Schrader, 1899. At Rampart House, on the Porcupine River, Frederick Funston, 1S94 (No. 175). At Dawson, Yukon Territory, R. S. Williams, 1899. Proc. Wash. Acad. Sci., August, 1901. 314 COVILLE Kotzebue Sotind. — At Camp Retreat, on the delta of the Kowak or Putnam River, G. M. Stoney, iSS6. 5. SALIX AMPLIFOLIA Coville. Yakutat Willow. Plate XXXV. Salix amplifolia Coville, Proc. Wash. Acad. Sci, 2 : 282. pi. /j. 1900. A shrub or small tree, ordinarily about 10 to 16 feet (3 to 5 meters) high, with a trunk three to four inches (7.5 to 10 cm.) in diameter, but sometimes attaining a height of 25 feet (7.5 meters) with a trunk a foot (30 cm.) thick. The young twigs are stout and densely villous- pubescent. The leaves are large, oval to broadly obovate, 5 to S cm. long when fully developed, entire, or denticulate on the margins below, somewhat villous when young, smooth or nearly so at maturity, with- out stipules. The catkins, appearing with the leaves on leafy-bracted peduncles, are very large and thick, about 1.5 cm. in diameter and 4 to 6 cm. in length, the fruiting catkins often becoming 2 cm. in diameter. The ovary and cai^sule are smooth, the style commonly 3 to 4 mm. long. Occasionally the ovaries are slightly hairy. The species is known only from Yakutat Bay, Alaska, where it was dis- covered by the Harriman Expedition. The tree was first observed on the west shore of the bay growing on and near the sand dunes that lie back of the beach, and was afterward collected in Disenchantment Bay at Egg Island, Hubbard Glacier, and Haenke Island, and later at the Indian village at the head of Yakutat Bay, east shore. Speci- mens were collected by Coville and Kearney (Nos. 1013a, 1061, 1062, 1074, 1089, 1 1 22, 1 1 23, 1 153, 1 158), Trelease and Saunders (Nos. 3340 to 3342, 3465), Brewer and Coe (Nos. 89, 90), and Fernow. The type specimen. No. 1153, was collected at the Indian village, not as stated in the original description on the west shore of the bay. Salix amplifolia bears considerable resemblance to richardsoni and barclayi., but the species from which it differs least is Salix hookeriana Barratt, which occurs on the sea coast from Oregon to British Colum- bia. Like affiplifolia, hookeriana lacks the stipules so conspicuous in richardsoni and in barclayi^ but hookeriana is readily distinguish- able from the Yakutat tree by its shorter styles, about i mm. in length, the permanent though sometimes thin tomentum on the backs of the leaves, the earlier appearance of the catkins, which precede the leaves, and the absence or rudimentary character of the green bracts on their peduncles. THE WILLOWS OF ALASKA 315 6. SALIX RICHARDSONI Hook. Richardson Willow. Salix richardsoni YioOYi. Fl. Bor. Am. 2: I47- t- ^^2. 1838-9. An erect bushy willow, from a meter or sometimes less to 2.5 meters in height, the branches stout and hairy,, and retaining the dead stipules of the preceding year's growth. These stipules are lanceolate, glandular-serrate, and very large, commonly i to 3 cm. in length. The catkins, which appear be- fore the leaves, are sessile on one- year-old wood, stout, and closely flowered, with densely long- hairy scales but smooth long- styled ovaries and capsules. The leaves are bright green, smooth on both sides (the scant cobwebby hairs present in the unfolding leaf-buds very early deciduous), paler and at ma- turity perhaps glaucous beneath, oblong-ovate to obovate-lanceo- late, apparently 3 to 6 cm. long at maturity, sparingly glandular- denticulate, particularly toward the base, on short woolly peti- oles. This willow was orig- inally collected by Richardson, naturalist of Sir John Franklin's expeditions, at Fort Franklin on the Mackenzie River in the interior of northern British America. We now have speci- mens from the vicinity of White Pass, Alaska, and from Port Clarence, indicating an extensive range in the interior of Alaska and the interior of northwestern British America. Specimens have been examined as follows : Mackenzie. — At Fort Franklin, on Mackenzie River, Richardson. One of the labels reads, " 7 feet high, erect and spreading." Yukon, — On the shore of Lake Bennett, J. B. Tarleton, 1S99 (Nos. 12, in part, 14). Marked " 5 to 8 feet high." Port Clarence. — In a brushy area along a stream in the tundra, Coville and Kearney (N0.1S74). Fig. 19. Salix richardso7ii Hook. : a, pistillate catkin, showing at the base two persistent stipules of the preceding sea- son's development, natural size ; b, pis- tillate flower, enlarged six diameters ; c, leaf, natural size. 3l6 COVILLE Seemann in his Botany of the Herald, page 40, reports Sa//x 7-ich- ardsoni as occurring on the Arctic sea coast of Alaska from Kotzebue Sound to Cape Lisburne, but his description of the ovaries as "cov- ered with a slight down " throws doubt on the identification and sug- gests that they may belong to Salix pulchra. The willow from Kadiak reported by Kellogg as richardsoni pi'oves to he pulchra. In Hooker's original description the leaves of Salix richardsoni are described as " integerrimis." One of the duplicate type specimens from Fort Franklin, in the Columbia University Herbarium, has some partially developed leaves and these show a sparse denticulation pre- ciselv as in the Lake Bennett and Fort Clarence specimens. The more nearly mature leaves of the Port Clarence plant indicate also that the base is not always as narrow as is shown in the Hooker plate. 7. SALIX BARCLAYI Anders. Barclay Willow. Plate XXXVI. Salix ba'clayi Anders. Oefv. Vet. Akad. Foerh, 15 : 125. 1858. Salix conjimcta Bebb, Bot. Gaz. 13: iii. 1888. The commonest bush willow of the Alaskan coast. It is an erect shrub, ordinarily one to two, sometimes three, meters in height, with leaves oblong-obovate, acute or somewhat acuminate at the apex, rounded or wedge-shaped or even cordate at the base, commonly 4 to 7 cm. long, glaucous on the back, smooth or with scant villous or tomentose pvibescence which is mostly early deciduous, the stipules ovate or ovate-lanceolate, toothed, persistent, and the ovaries smooth throughout. The characters given in the key distinguish it from re- lated Alaskan species. It ranges throughout the coast region of south- ern Alaska, from Dixon Entrance northward and westward as far as Unalaska. Southward from Alaska it extends at least as far as the state of Washington. The original specimens of Salix barclayiwexe collected at a point near Cape Greville on Kadiak Island, Alaska, by George Barclay, the botanical collector of the British ship Sulphur, in 1S39. Alaskan specimens of this species have been examined as follows : Wra?7gell. — On a hillside back of the town, Coville and Kearney (No. 444), Fernow. Juneau. — In and near Silver Bow Basin, Coville and Kearney (No. 565), Grace E. Cooley, 1S91, F. A. Walpole, 1900 (No. 1053). White Pass and vicinity. — At various points about Skagway and along the White Pass railroad to Lake Bennett, F. A. Walpole, 1900 (Nos. 1055 to 1057, 1065, 1069, 1261, 1276). Glacier Bay. — Common on almost all the shores of the bay, Coville THE WILLOWS OF ALASKA 317 and Kearney (Nos. 623, 641, 652, 660, 700), Trelease and Saunders ^Nos. 3406, in part, 3459 to 3461), Trevor Kincaid, 1S97. Takutat Bay. — Common all about the bay, Coville and Kearney (Nos. 1034, 1046, 1060, II 19, 1 139, 1 152), Trelease and Saunders (Nos. 3415, 3462, 3466 to 346S, 3471, 3473), Frederick Funston, 1S93 (No. 6). Prifice Willia?n Sound. — In Fort Wells and in Columbia Fiord, Coville and Kearney (Nos. 1260, 1361). Cook Inlet. — At Kenai, F. A. Walpole, 1900 (No. 1144), and an abnormal form at Halibut Cove, Coville and Kearney (No. 2416a). Also between Cook Inlet and the Tanana River, E. F. Glenn, 1S99. Kadiak Island. — At various points near Kadiak village, Coville and Kearney (Nos. 1436, 2329), Trelease and Saunders (Nos. 3476, 3478, 3479), Fernow, Cole, A. Kellogg, 1867 (Nos. 175, in part, 221, in part), Walter H. Evans, 1S97 (Nos. 313, 314), F. A. Wal- pole, 1900 (Nos. 1 149 to 1 153, 115S, 1 159). Alaska Peninsula. — At Kukak Bay, Trelease and Saunders (Nos. 34S0, 34S1). Shumagln Isla?ids. — On Popof and Unga, Coville and Kearney (No. 1796), Trelease and Saunders (Nos. 3453a, 3455), Kincaid, M. W. Harrington, 1 87 1-2. Unalaska. — Near Iliuliuk, Coville and Kearney (No. 1785), Fernow, C. Hart Merriam, 1891, J. M. Macoun, 1891, 1896, B. W. Evermann, 1892 (No. 19), Walter H. Evans, 1897 (No. 537). For remarks on the relationship of this species with Salix cominu- iata., see the notes under that species. 8. SALIX COMMUTATA Bebb. Greenbacked Willow. Plate xxxvii. Salix comnmtata Bebb, Bot. Gaz. 19: no. 1888. An erect bushy willow commonly .5 to 1.5 meters in height, similar to Salix barclayi but distinguishable by the characters given in the key. The most prominent difference lies in the color of the backs of the mature leaves, which in barclayi are covered with a conspicuous bloom but in com?nutaia have no bloom, but nearly the same green color as the upper surface. The differences in the toothing of the leaf margins of the two species are indicated in the plates. The upper leaves on the leaf shoots of cojnmutata often present a grayish appearance, due to a thin but permanent tomentum on both surfaces. The species extends from the coast region of eastern Alaska southward through British Columbia to Oregon, in Alaska not extending west of 3l8 COVILLE Kadiak Island. Mr. Bebb's original specimens were all from the mountains of Oregon and Washington. The Alaska specimens examined are as follows : White Pass.— At Log Cabin, Vista, and White Pass, F. A. Wal- pole, 1900 (Nos. 1066, 1270, 1279). Glacier Bay. — On the gravels at Muir Glacier, at Hooniah village, Coville and Kearney (Nos. 638, 654), and in Berg Inlet, Kincaid. Yakutat Bay. — At several points in Disenchantment Bay and Rus- sell Fiord, Coville and Kearney (No. 997), Trelease and Saunders (Nos. 3463, 3464), and on the west side of Yakutat Bay, Coville and Kearney (No. mS), Fernow. Prince William Sound. — Incomplete specimens from Port Wells are doubtfully referred here, Coville and Kearney (No. 1274), Tre- lease and Saunders (No. 3474). Kadiak Island. — Along a small stream near the summit of the mountain back of Kadiak village, F. A. Walpole, 1900 (No. 11S2). Specimens of this willow were brought from a mountain back of English Bay by Miss Harriman, but the specimens unfortunately were not preserved. Alaska Penitisula. — At Kukak Bay, Coville and Kearney (Nos. 1618, 1680), Trelease and Saunders (No. 34S2). The history of this species, briefly stated, is as follows : In the year 1 888 Mr. M. S. Bebb published two closelv related new species of willows, commutata ^ and conjuncta,'^ which he considered interme- diate hetw een g-lauca and cor data. Later, in the light of further col- lections, he recognized and alluded to ^ the close relationship of these species with the older Salix Barclay i of Andersson and his own Salix calif ornica.^ Still later he described^ Barclay i as a species exhibit- ing " a degree of variation remarkable even among willows," and was inclined to refer to it as synonymous his coffi??iutata and co7zjuncta, an inclination to which he afterward yielded as evidenced by his identifi- cations of willows sent to him from the National Herbarium. From the large series of specimens now available and from field observation of these willows in the Cascade Mountains and in Alaska, I do not hesitate to express the opinion that Salix barclayi and Salix commu- tata are two valid species, and that conjuncta is a synonym of bar- clayi. No botanist with mature leaf specimens of the two plants be- ^Bot. Gaz. 13: 110. 18SS. ^Idem, III. 'Idem, 16: 106-7. 1891. ^Bebb in Brewer & Wats. Bot. Cal. 2 : 89. 1S80. sContr. Nat. Herb. 4: 198. 1893. THE WILLOWS OF ALASKA 3I9 fore him would unite them, but the young leaves of barclayi do not always show the glaucous character of their lower surface, and even the characteristic toothing of the margin is then often obscured also. Salix califor7iica may be distinguished from commjitata by its hairy capsules. 9. SALIX PULCHRA Cham. Diamondleaf Willow. Plate XXXVIII. Salix pule hr a QnkM. Linnaea 6 : 543. 1831. Salix phylicoides AyiD^KS. Oefv. Vet. Akad. Foerh. 15 : 123. 1858. Salix fulcrata Anders. Kongl. Vet. Akad. Handl. IV. 6 : 139. 1867. An erect and bushy, though in arctic or alpine situations often pros- trate, willow with diamond-shaped leaves bright green and shining above, glaucous beneath, entirely smooth on both surfaces except when very young, usually entire though sometimes sparingly crenate-denticu- late near the middle, the stipules lanceolate, glandular-denticulate, and persistent. It is a trim, handsome species, well deserving Chamisso's name pulchra. The original description was based on specimens collected by the Kotzebue expedition at Cape Espenberg in Kotzebue Sound and on St. Lawrence Island in Bering Sea. The species ranges from the coast of eastern Siberia through the islands of Bering Sea to Point Barrow on the Arctic coast of Alaska, to Kadiak Island on the south coast, and to the upper Yukon valley in the interior. The specimens examined are as follows : Siberia. — On the coast of Bering Sea, between St. Lawrence and Mechigme bays, James T. White, 1S94. Arctic Seacoast of Alaska. — At Point Barrow, John Murdoch, 1SS3-3. Kotzebue Sound. — On the Kowakor Putnam River, G. M. Stoney, 1SS6. Port Clarence. — On the tundra, often prostrate, sometimes a ineter and a half in height, reaching at least 5 cm. in diameter of trunk, Coville and Kearney (No. 1876), Trelease and Saunders (Nos. 3374 to 3376), Brewer and Coe (Nos. 377, 37S), Cole. St. Lawrence Island. — At Northeast Cape, Coville and Kearney (No. 3001), Trelease and Saunders (No. 3445). St. Matthew Island. — On St. Matthew, Coville and Kearney (No. 2088) Brewer and Coe (No. 466). Pribilof Islajtds. — On St. Paul Island, C. Hart Alerriam, 1891. Shumagin Islands. — Common at sea-level on both Popof andUnga, Coville and Kearney (No. 1796a), Trelease and Saunders (Nos. 3453, 3454» 3454a, 345S), C. H. Townsend, 1893. 320 COVILLE Kadiak Island. — A common species, Coville and Kearney (No. 1434), Trelease and Saunders (Nos. 3366, 3475), Brewer and Coe (No. 220), Cole, A. Kellogg, 1867 (No. 221, in part), F. A. Wal- pole, 1900 (No. 1 156). Alaska Peninsula. — At Kukak Bay, Coville and Kearney (Nos. 1633, 1640). On the Nushagak River, C. L. McKay, iSSi. Yukon Valley. — On Fortymile Creek, near its junction with the Yukon, Frederick Funston, 1S93 (^o* 40 )• Junction of Allen and Koyukuk rivers, F. C. Schrader, 1S99. Skagivay to Lake Bennett. — Collected at various points, F. A. Walpole, 1900 (Nos. 1060, 1061, 106S, 1084, 10S5, 1269). Adelbert von Chamisso, in reporting on the Arctic willows collected by himself and Eschscholtz on the Kotzebue Expedition, describes a willow as follows : Salix pluries nobis obviam venit, an nova species, pjilchra., fruticu- losa, depressa, foliis breviter petiolatis pollicaribus majoribusque lanceolatis ellipticisve utrinque acutis integerrimis glabris, subtus glau- cescentibus, venis pennatis obliquis tenuibus utrinscens [utrinsecus] 5—8 notatis, stipulis lineari-filiformibus serratis, amentis lateralibus sessilibus villosis, femineis maturis crassis circiter bipollicaribus, cap- sulis lanatis subsessilibus. Habitus fere Salicis arctlcae Pall. — In Pro- montorio Espenbergii Americae transbeeringiensis, inque insula Sti. Laurentii. — An eadem, quam sterilem prope Tigil Kamtschatcae occi- dentalis legit Erman? cui folia majora, latiora, bipollicaria, subinde ' obovata, venis pluribus primariis utrinsecus S-io-ornata.^ This is an excellent description of a certain willow common in west- ern Alaska, and the description applies to no other species of that region. It is therefore assumed, even in the absence of the type speci- mens, that Chamisso's Salix ptdchra is identifiable. The species to which the description applies is the Salix phylicoides of Andersson,' which was afterward divided by its author so as to make an additional ?,\>Q.c\&'a., fulcra t a. ^ Mr. M. S. Bebb critically investigated the two in 1 888 and pointed out their identity, figuring a series of leaves and fruits.* Chamisso's name appears to have been lost sight of, as it is not included in the Index Kewensis, nor is it cited as a published name in any of the works on willows that I have consulted. Andersson al- luded to the plant in 1858, when he referred it '" dubiously to the S. lap- p07ium of Linnteus, but likened its leaves to those of the European species phylicifolia .^ a willow so nearly resembling our Alaskan plant ^LinnaeaC: 543. 1S31. ^Oefv. Vet. Akad. Foerh. 15 : 123. 1S5S. 3Kongl. Vet. Akad. Handl. IV. 6 : 139. 1867. ♦Bot. Gaz. 13: iS6--j.pi.io. iSSS. sQefv. Vet. Akad. Foerh. 15: 120. 1858. THE WILLOWS OF ALASKA 321 that Andersson himself recognized that resemblance in his name S. fhylicoides. There is some doubt as to the real type locality of Andersson's Salix phylicoides. He said " Hab. in arctica America occidentali (Awatcha Bay : Seeman[n])." Awatcha Bay, however, is not in Alaska but in southern Kamchatka. It is the bay on which the Russian port of Petropavlovsk is situated. The British ship Herald, on which See- mann visited the North Pacific, worked also, however, extensively in Kotzebue Sound and neighboring parts of Arctic Alaska, and it is probable that the type specimens came from that coast. lo. SALIX GLAUCA L. Grayleaf Willow. Plate xxxrx. Salix glauca L. Sp. PL 2 : 1019. 1753. Salix seeinxnnii'Rx'Q^^^G, Bull. N. Y. Bot. Gard. 2: 164. 1901. An erect willow, commonly .5 to 1.5 meters high, with entire leaves glaucous on the lower surface and permanently clothed beneath, and the upper ones usually also above, with a rather thin covering of long appressed hairs, the ovaries white-hair}-, and the catkin-scales light brown to straw-colored. The plant was originally described from noith European material but the species has a circumpolar distribution. In Alaska it ranges from the shores of Bering Sea eastward to the upper Yukon. Specimens have been examined as follows : White Pass. — At Bennett and Vista, F. A. Walpole, 1900 (Nos. loSi, 1275). Glacier Bay. — On the gravels at the Muir Glacier, very scarce, Coville and Kearney (No. 641a). Kadiak Island. — One of the commonest willows about Kadiak vil- lage, Coville and Kearney (Nos. 143S, 3248, 2328, 2331), Trelease and Saunders (Nos. 3362, 3367, 3477), Cole, F. A. Walpole, 1900 (Nos. 1 155, 1 157). At Sturgeon Bay, near Cape Karluk, Trelease and Saunders (No. 3368), Brewer and Coe (No. 482). Shujtiagin Islands. — Abundant at Sand Point, Popof Island, and on Unga Island, Coville and Kearney (No. iSoo), Trelease and Saun- ders (Nos. 3369 to 3371), Kincaid, M. W. Harrington, 1 87 1-2, C. H. Townsend, 1893. Bristol Bay. — Near Nushagak, C. L. McKay, 18S1. St. Michael. — On the mainland opposite the island, Frederick Fun- ston, 1894 (No. 236). Port Clarence. — Along a stream valley in the tundra, Coville and 322 COVILLE Kearney (No. 1S75), Trelease and Saunders (No. 3373), Brewer and Coe (No. 3S0). Kotzebue Sotind. — On Chamisso Island, Berthold Seemann, 184S- 1S50. In addition to these localities, the plant is reported from the Upper Yukon valley. There is a tendency among American willow students to exclude Salix glaiica from the North American flora, but our Alaskan speci- mens show so close an agreement with some European material of this species that I am unwilling to separate them. A Salix seemaiinii has been described very recently,^ the type specimen collected at Dawson, Yukon Territory, by R. S. Williams, June 11, 1899. The species is credited also to Kotzebue and Norton sounds, Alaska, on the basis of collections made by Berthold Seemann. No comparison of the differ- ences between glaiica and sceinannii is made by the author, nor am I able to find in the description a record of any characters that serve to distinguish the specimens assigned to the latter species from forms of glauca found in America and Europe. II. SALIX NIPHOCLADA Rydberg. Mouseleaf Willow. Salix niphoclada Rydberg, Bull. N. Y. Bot. Gard. i : 272. 1899. An erect bushy willow, at least half a meter in height, the twigs and lower surfaces of the leaves in dried specimens very gray, almost mouse-colored, from their glaucousness and appressed hairs, and the darkening of the tissues in drying. The leaves are oblong-lanceolate to ovate- lanceolate, acute at the apex, rounded or cordate at the base, on petioles 3 mm. or less in length, entire or with a few ob- solescent teeth toward the base, commonly 1.5 to 3.5 mm. long, the lower surface very glaucous and, in all except some of the lowermost rudimentary leaves, with a rather sparse, permanent, rather appressed pubescence of somewhat curly hairs, the upper surface green and with a sparse (except in the upper leaves of vigorous twigs) pubescence of longer appressed hairs like those on the twigs. The slender catkins, about 4 to 6 mm. in diameter, are > Rydberg, Bull. N. Y. Bot. Gard. 2 : 164. 1901. Fig. 20. Salix niphoclada Rydberg : a, pistillate flower- ing twig, natural size; b, pis- tillate flower, enlarged six diameters ; c, mature leaf, natural size. THE WILLOWS OF ALASKA 323 borne on branches of the season which are sometimes 2.5 cm. long and commonly bear 3 to 5 leaves. The catkin scales are pale brown to straw-colored, the ovaries white-toinentose, and the styles from .5 mm. long to almost nothing. The plant is a rare one in herbaria, having been collected, so far as known, only near the mouth of the Mackenzie River in British America (the type locality), on the Porcupine River in Alaska, and on the northwestern shore of Hud- son Bay. The specimens examined are as follows : Mackenzie River. — At a point 30 miles north of the Arctic Circle Miss E. Taylor, 1S93. Porctipi7ze River. — At its junction with the Yukon, growing along the margins of woods, Frederick Funston, 1894 (No. 185). Hudson Bay. — Near the mouth of Seal River, 40 miles (64 km.) northwest of Fort Churchill, E. A. and A. E. Preble, 1900 (No. 26). Identified by P. A. Rydberg. Dr. Rydberg based his description on a single fruiting specimen collected by Miss E. Taylor, as above cited, and deposited in the herbarium of the Geological and Natural History Survey of Canada. Mr. Funston's material is in flower and full leaf, and includes both pistillate and staminate specimens. This additional material necessi- tates a change in the original description in only minor details, all of which are included in the general characterization given above. The staminate catkins in our specimens are about i cm. in length, and ex- cept the exserted portions of the stamens, about 3 mm. in diameter, with 2 stamens to each flower, the filaments smooth. The nearest relative of the species among Alaskan willows is Salix glauca. 12. SALIX ARBUSCULOIDES Anders. Little-tree Willow. Salix arbusculoides Anders. Kongl. Vet. Akad. Handl. IV. 6: 147. /. 8. f. 81. 1867. Saiix humillima Anders, in DC. Prod. 16°: 248. 1868. An erect shrub with reddish stems and narrowly elliptical -lanceolate leaf-blades acute at both ends, smooth and bright green above, glaucous beneath, the margins finely and closely denticulate throughout, the lower surface with a permanent pubescence of straight, closely appressed rather short hairs. The catkins, which appear with the leaves on short usually leafy-bracted peduncles, are cylindrical and slender, the ovaries pubescent. The species was described from specimens collected in eastern British America at Prince Albert Sound and Rae River ; the Labrador locality, also assigned the plant in the original publication, is probably an error. None of the types has been accessible to the 324 COVILLE writer, and the present reference of our specimens is based on an iden- tification by Herr Rittmeister von Seemen of the Berlin Herbarium. Our Yukon Valley specimens are as follows : F'ortymile Creek. — Near the junction of Fortymile Creek with the Yukon River, Frederick Funston, 1893 (No. 42a). Dazvson. — "Island near footbridge," R. '^. Williams, 1899. Fiftyinile River. — Collected by Arthur L. Bolton, 1S99. Salix arbusctdoides most resembles, among Alaskan willows, Salix sitchensis., but the toothing and less distinctly oblanceolate character of the leaves, the lack of the permanent satiny lustre of the lower leaf surface, and the presence of two stamens instead of a single stamen in the male flowers, distinguish arbusculoides. Salix sericea Marsh., of the eastern United States, is another species resembling arbiiscidoides but its leaves are slightly hairy on the upper surface, at least on the midrib, and the apex is acuminate, while the catkins are more densely flowered than those of arbusculoides., with the scales usually black, and rather densely villous. In arbuscidoides the leaves are entirely smooth above, even to the midrib, and the apex is merely acute, the point sometimes blunt ; and the catkins are more loosely flowered, he scales light to dark brown, scarcely black, sparingly villous. The willow described by von Seemen in 1S95 as Salix saskatchavana^ see.\ViS to be closely related to Salix arbusctdoides but the statement regarding the leaves, " untere Seite in der Jugend fein seidig behaart, im ausgewach- senen Zustande bcide Seiten kaJd" furnishes the presumption of a specific distinction. In addition to the flowering specimens collected by Mr. Funston mature leaves and fruit were collected at Dawson, Yukon Territory, June 19, 1899, by Mr. R. S. Williams, and similar mature specimens at Fiftymile River, Yukon Territory, in the same year, by Mr. Arthur L. Bolton. From the upper Yukon the species extends eastward nearly or quite across the northern part of the continent. None of these collectors described the habit of the plant, but it certainly is not a prostrate species, and doubtless is not a tree. Fig. 21. arbusculoides ders. : a, pistillate flowering twig, natural size ; b, pistillate flower, en- 1 a r g e d six dia- meters; c, scale, same enlargement; d, mature leaf, natural size. 'Seemen, Engl. Bot. Jahrb. Beibl. 52 : 7. 1S95. THE WILLOWS OF ALASKA 325 13. SALIX MYRTILLIFOLIA Anders. Myrtle Willow. Sali.x inyrtillifoUa Anders. Oefv. Kongl. Vet. Akad. Foerh. 15: 132. 185S. Also Anders. Proc. Am. Acad. 4 : 74. 1858. A small, trailing, rather than prostrate, willow, the branches often standing erect for a decimeter or two above the ground. The leaf- blades in our specimens are oblong, i to 3 cm. in length, broadly acute or obtuse at base and apex, entirely smooth, evenly crenate about the whole margin, on smooth petioles about i .5 to 3 mm. in length. The catkins appear with the leaves from lateral buds on old wood, the short pubescent peduncles, i to 3 mm. in length, bearing usually 3 to 3 small leaves. The pistillate catkins are i to 2 cm. in length, and about 4 to 5 mm. in diameter, the scales short, black-tipped, and sparingly hairy. The ovaries are smooth, lance- olate, tajDering into a short style .5 mm. or less in length, the pedicel about twice or three times the length of the nectary and only a little shorter than the catkin scales. The species is known only from YiG.22. SalixmyrtilUfoUa the interior of British America, the type Anders. : «, pistillate fiower- T . 1 J ti r> 1 AT insT twisf, natural size ; ^, pis- specimens benig marked " Kocky Moun- .,f „ , , . ,. ■^ ^ •' tillate flower, enlarged six di- tains, east side, low situations." It has ameters ; c, leaf , natural size, been found so close, however, to the Alaskan boundary, namely on the shores of Lake Bennett, Yukon, J. B. Tarleton, 1899 (Nos. 4a, 4b), and below White Horse Rapids, R. S. Williams, 1S99, that its occurrence in Alaska may be expected. From lack of specimens it has been impossible to give this species the critical study it needs, particularly in the direction of establishing its relationship to Salix pse?idomyrsi?zites and Salix curtijlora. These were published as species by Andersson in the same paper in which myrtillifolia was published, but he afterward brought all three together as varieties of his Salix novaeangliae^ a treatment which has not been followed by recent American students of Salices. 14. SALIX CHAMISSONIS Anders. Chamisso Willow. Salix c/iamissonis Anders, in DC. Prod. 16': 290 1868. A prostrate willow with obovate smooth leaves minutely and closely glandular-serrate about the entire margin. It is the only normally pros- trate willow of Alaska with glandular-serrate stipules. Its creeping branches and bright green leaves form rather dense patches in moist 326 COVILLE places in the tundra. The plant is confined to the trvily Arctic zone on the islands and shores of the northern part of Bering Sea, the orig- inal specimens having been collected by Chamisso and Eschscholtz, botanists of the Kotzebue Expedition, in 1816, at St. Lawrence Bay, on the Siberian side of Bering Strait, about latitude 65° 40'. Specimens have been examined as follows : jPor^ Clarence. — Abundant on the tundra of the mainland at the landing place of the expedition, Coville and Kearney (Nos. 1877, 1878, 1879), Tre- lease and Saunders (No. 3472), Cole. St. Lawrence Island. — Found sparingly on the tundra at Northeast Cape, Coville and Kearney (No. 2003). The plant was also collected on this island by Chamisso and Eschscholtz, according to Ledebour, and by Kjellmann, of the Vega Expedition. Siberian Coast. — Collected at Plover Bay by W. H. Dall, of the Western Union Telegraph Expedition, in 1865-6. This species is easily distinguishable from the other prostrate willows of Alaska by the form and serration of its leaf -blades. These are commonly 1.5 to 3 cm. in length, narrowly obovate to nearly or- bicular, apiculate, broadly acute or rounded at the apex, and either glaucous or shining beneath. The catkins, which stand erect on leafy peduncles, are a centimeter or a little more in diameter and commonly 3 to 6 times as long. In most of the specimens the capsules are dis- tinctly but not densely pubescent, but in some they are smooth. The stvle is about a millimeter in length. Fig. 23. Sa- lix chamissonis Anders., a mature leaf, natural size. 15. SALIX ARCTIC A Pallas. Arctic Willow. Plate XL. Salix arctica Pall. F1. Ross, i" : 86. 1788. Salix diplodictya Trautv. Nouv. Mem. Soc. Nat. Mosc. 2 : 307. t. 14. 1832. Salix crassijulis Trev. ; Trautv. Nouv. Mem. Soc. Nat. Mosc. 2: 308. /. 15. 1832. Salix pallasii A^T>%^s. in DC. Prod. i6' : 285. 1868. The commonest and the largest of the prostrate willows of Alaska. Its short half buried trunk is sometimes 2 to 3 cm. in diameter, and sends out stout horizontal creeping branches sometimes a centimeter thick at the base. Its leaf blades are normally about 2.^ to 4 cm. long, obovate, obtuse at the apex, tapering at the base, glaucous beneath, entire, or THE WILLOWS OF ALASKA 327 very sparingly denticulate toward the base, smooth on both sides at maturity, but usually with some long soft appressed hairs on the mar- gins and lower surface when young. Sometimes, however, the leaf- blades are almost orbicular with a scarcely tapering base, sometimes the apex is acute, sometimes retuse, and in robust specimens they may reach a length of 7.5cm., often then developing ovate-lanceolate entire stipules. It is the only prostrate willow of Alaska, except chamissonis^ that produces stipules, and in that species the stipvdes are glandular- serrate. Occasionally the upper surface of the leaves bears some cob- webby hairs, even till maturity. A conspicuous feature of the plant when growing is the long, erect, stout, hairy catkins standing above the leaves, which look like little cat tails. The catkin scales are usually black, obtuse, and long-hairy, the ovaries densely white-woolly, becoming more thinly tomentose as thev expand and mature, and the styles are commonly i to 3 mm. in length. The plant is an arctic- alpine species occurring near timber line, or in cold situations at lower elevations, along the southern coast of Alaska from Juneau west- ward to the Siberian coast, and northward to the coast of the Arctic Ocean. The original specimens of arctica were collected by Sujef in Siberia along the Gulf of Obi, of diplodictya on St. Lawrence Island, Bering Sea, and of crassijulis in St. Lawrence Bay, Siberia. A large number of specimens have been examined, as follows : Jtmeau. — Above Silver Bow Basin, Grace E. Cooley, 1891. White Pass. — Near the summit, altitude about 3000 feet, Coville and Kearney (No. 518), Trelease and Saunders (No. 3399), R. S Williams, 1S99, F. A. Walpole, 1900 (Nos. 1104, 1109, 1348, 1378) Glacier Bay. — At various points, Coville and Kearney (Nos. 631 in part, 635, 655), Trelease and Saunders (Nos. 3400, 3401, 3401a 3403 to 3405, 3407 to 3409, 3433, in part), Brewer and Coe (Nos 37, 41), Kincaid, Walter H. Evans, 1897 (No. 157). Most of these specimens were collected on the cold glacial gravels near sea level, the timber line belt being deeply covered with snow at the time of our visit. Takutat Bay. — At various localities, Coville and Kearney (Nos. looi to 1003, 1013, 1040, 1076, 10S3, 1099, 1 140), Trelease and Saunders (Nos. 3410, 341 1, 3414, 3441? 3472), Frederick Funston, 1893 (No. 117). Most of these specimens were collected on glacial gravels near sea level. Prince Willia?n Sound. — At several localities, Coville and Kearney (Nos. 1195, 1371, 1363), Trelease and Saunders (Nos. 3416 to 3418). Some of these grew at sea level, others at 3500 feet elevation. 328 COVILLE Kadiak Island. — At various points, Coville and Kearney (No. 1473), Trelease and Saunders (Nos. 3419 to 3421), Brewer and Coe (Nos. 206, 232), Cole, Walter H. Evans, 1S97 (Nos. 437 to 439), F. A. Walpole, 1900 (Nos. 116S, 1169). SJmmagin Islands. — At several localities on Popof and Unga, Tre- lease and Saunders (Nos. 3423. 3424, 3456, 3457), Brewer and Coe (No. 2S0), Kincaid, M. W. Harrington, 1S71-2. On Nagai Island, C. II. Townsend, 1893. Alaska Peninsula. — At Kukak Bay, Coville and Kearney (No. 1670), Trelease and Saunders (No. 3422), Kincaid. At Stepovak Bav, Palache. At Bailey Harbor, Belkofski Bav, C. H. Townsend, 1S93. At Nushagak, without collector's name, 1SS2. Aleutian Islands. — On Akun Island, C. H. Townsend, 1S93. On Unalaska, Coville and Kearney (Nos. 17863, 2200), Trelease and Saunders (No. 3426), Brewer and Coe (No. 296), Cole, H. G. von Langsdorff, 1805-6, A. Kellogg, 1S67 (No. 275), M. W. Harrington, 1S71-2, L. M. Turner, 1880, C. Hart Merriam, 1891, J. M. Macoun, 1S91, B. W. Evermann, 1S92, Walter H. Evans, 1897 (No. 537, in part). On Attn Island, J. M. JMacoun, 1891, W. V. E. Jacobs, 1894. Pribilof Islands. — On St. Paul, Robert White. 1879, William Palmer, 1S90 (Nos. 310, in part, 425, 724), C. Hart Merriam, 1891, J. M. Macoun, 1892, 1897, C. H. Townsend, 1893, Trevor Kincaid, 1897. St. Matthc-ju Islands. — On St. Matthew, Coville and Kearney (No. 2086), Trelease and Saunders (Nos. 3394, 3430, 3431, 3447)- On Hall Island, Coville and Kearney (No. 20S2), Trelease and Saunders (Nos. 3428, 3429, 3446), Brewer and Coe (No. 410), J. M. Macoun, 1891. Arctic Seacoast. — Collected at Point Hope by some person on the Revenue Cutter Corwin in 1883. Siberia. — At Plover Bay, Coville and Kearney (No. 1865), Cole, W. H. Ball, 1865-6. On Bering Island, L. Stejneger, 1S82-3. Salix arctica is exceedinglv variable in its leaf characters, and this, together with certain nomenclatorial accidents, has caused the species to be known under several different names. Mr. M. S. Bebb pub- lished a critical statement on the subject in 1889,^ based in part on correspondence with Trautvetter, which I have here followed. The large number of specimens examined tends to confirm the idea that the extreme variation in the leaves is chieflv an individual characteristic and does not mark recognizable incipient species. The nearest ap- ^ Bot. Gaz. 14: 1 15-17. 1SS9. THE WILLOWS OF Ai;^ASKA 329 proach I have found to a subspecific differentiation is in some of the specimens from the Pribilof and St. Matthew Islands in Bering Sea, and the Shumagin Islands. In these specimens the leaves are orbicular or nearly so and only about 2 to 3 cm. in diameter, w^hile the catkins are shorter than usual, about 1.5 to 3.5 cm. in length. Occasionally specimens are found which lack the glaucousness of the lower leaf surface, a character on which Trautvetter based chiefly his separation of diplodictya. 16. SALIX GLACIALIS Anders. Icy Willow. Salix glacialis h.-^M^'^s. Oefv. Vet. Akad. Foerh. 15: 131. 1858. A prostrate willow with smooth stems and buds, small oval obtuse leaves 12 mm. or less in length, smooth, or when young slightly appressed-villous on the lower surface, glaucous on the back, entire or with a few teeth toward the base, the catkins ovoid to globose, several-flowered, the scales black and nearly smooth on the outside, the ovaries densely white hairy, and the style wanting. Its foliage resembles that of ovalifolia^ though smaller, but in the pistillate flowers it is very different from any species of the ovalifolia group. The species is known only from the type specimen collected by Lieutenant W. J. S. Pullen, in 1S49, on the Arctic seacoast between Point Barrow and the Mackenzie River, and from speci- mens collected at Point Barrow by John Murdoch, in 1SS2-3 nate specimens and mature leaves are unknown. Fig. 24. Salix glacialts Anders.: a, pistillate flowering twig, natural size: b, pistillate flower, en- larged six diameters. Stami- 17. SALIX FUSCESCENS Anders. Bog Willow. Sa/zx /Ksc^scens Anders. Kongl. Vet. Akad. Handl. IV. 6: 97. 1867. A prostrate or trailing willow, with small smooth leaves glossy above, glaucous beneath, of a rhombic-obovate form, the broadest part distinctly above the middle, and usually with a few teeth toward the narrowxd base, the ovaries smooth, styles less than half a milli- meter in length, and the pedicels two or more times the length of the nectaries. It is a species of western Alaska, occurring from the peat bogs of Kadiak Island and Cook Inlet westward to the tundra of the shores and islands of Bering Sea and the Arctic Ocean, and is found also in eastern Siberia. Proc. Wash. Acad. Sci., August, 1901. 330 COVILLE Specimens have been examined as follows : Cook Inlet. — In bogs at Kasilof, Walter H. Evans, 1S98 (Nos. 682, 726). Kadiak Islafzd. — In a bog at the head of a lake about a mile and a half from the village of Kadiak, F. A. Walpole, 1900. Alaska Peninsula. — At Kukak Bay, Coville and Kearney (No. 1660). Norton Sound. — At Unalaklik, Frederick Funston, 1S94 (No. 232). St. Lawrence Island. — On the marshy tundra at Northeast Cape, Coville and Kearney (No. 2002), Trelease and Saunders (Nos. 3443, in part, 3444), Cole. St. Matthew Island. — On the tundra, Coville and Kearney (No. 2087a). Siberiafi Coast. — At Plover Bay, W. H. Dall, 1S65-6, Coville and Kearney (No. 1S56), Cole. In his original description Andersson gave the range of this species as "in Kamtschatka (Beechy et Mertens), ad Alaxa (Kostalski), ad ostium fl. Uda, ad sinus Manga, Nichta, Ujakon, et in insula Schan- tar (Middend.)," and he found it also among the Kotzebue plants from Esch- scholtz Bay and Shishmaref Bay or Inlet, in Kotzebue Sound. It has been impos- sible to consult any of these specimens, and our identifications of the species rests on descriptions alone. In Hooker and Arnott's Botany of Captain Beechey's Voyage and various subsequent publi- cations the species was misidentified as 6*. rhamnifolia Pallas. Among the Alaskan species fuscescens most nearly resembles ovalifolia^ but may readily be distin- guished by the characters given in the key. Its nearest relative among North American vv'illows is Salix 7nyrtilloides L., a circumpolar species occurring on our continent chiefly on the eastern side, in bogs, and apparently not extending northwestward to Alaska. The mxa^ fuscescens was given to the plant to indicate the tendency of the young leaves to turn blackish in drj-ing, a phenomenon characteristic, however, of several other species of willows. Fig. 25. Salix fuscescens Anders. : a, pistillate flower- ing twig, natural size; b, pistillate flower, enlarged six diameters ; c, mature leaf, natural size. THE WILLOWS OF ALASKA 331 iS. SALIX OVALIFOLIA Trautv. Oval Willow. Salix ovalifolia'TKXVTY. Nouv. Mem, Soc. Nat. Mosc. 2: 306. /. /J. 1832. Salix tinalaschcensis Cham.; Anders. Oefv. Kongl. Vet. Akad. Foerh. 15 : 130. 1858. Salix rotimdata Rydberg ; Jordan, Fur Seal Islands 3: 571. 1899, not Salix rotundata Forbes 1829. Saiix cyclophylla Rydberg, Bull. N. Y. Bot. Gard. i : 274. 1899. A common and characteristic prostrate willow of western Alaska and eastern Siberia, extending in Alaska along the coast from the Shumagin Islands westward to the Aleutian Islands, northward through the islands and shores of Bering Sea, and northeastward along the Arctic Ocean to Point Barrow. The type specimen of ovalifolia came from Cape Espenberg, Kotzebue Sound, of tin- alaschcensis from Unalaska, of rotun- data and cyclophylla from St. Paul Island, of the Pribilof group. It is distinguishable from the other prostrate willows of Alaska by its oval to orbi- cular, nearly or quite entire leaves usually 10 to 20, or sometimes even 25, mm. in length, glaucous beneath, and at maturity thick, tough, and promi- nently marked beneath by a net-work of fine veins, its slender shoots of the season running over the surface of the ground, its smooth and glau- cous capsules on stalks little or not at all exceeding the nectaries, and its styles about .5 mm. in length. It forms large carpet-like patches in the grass, extending to sea level, apparently, in the southernmost parts of its range and reaching there- fore below the limits of most strictly arctic plants. Specimens have been examined as follows : Takutat Bay. — On the glacial gravels along the west shore of the bay, only a single patch seen, Coville and Kearney (No. 1141). Although this locality is far to the east of the main range of the species, the specimens have the characteristic long creeping shoots and glaucous capsules. The fact that only a single patch was observed, close to the bank of a stream, suggests that a stray seed may have been brought to the spot by the wind or some water bird. It is quite possible, too, that Salix ovalifolia occurs at several points east of Kadiak, for the Fig. 26. Salix ovalifolia Trautv. : a, pistillate flowering twig, natural size ; b, pistillate flower, enlarged six diameters ; c, d, mature leaves, natural size. 332 COVILLE limited character of the collections thus far made in Cook Inlet and Prince William Sound do not preclude the possibility of its occurrence in those places. Kadiak Island. — Mountain back of Kadiak village, F. A. Wal- pole, 1900 (No. 1237). Alaska Peninsula. — Collected in Stepovak Bay, where it was rather abundant, Palache. Shumagin Islands. — At Sand Point, Popof Island, Coville and Kearney (No. 1799), and elsewhere on the same island, Trelease and Saunders (No. 3425). Pribilof Islands. — Abundant and forming large mats near the vil- lage of St. Paul, St. Paul Island, Coville and Kearney (No. 1S37), Trelease and Saunders (No. 3442), Kincaid, Cole, Brewer and Coe (Nos. 335, 329), Mrs. Bryant, 1875, William Palmer, 1890 (Nos. 353, 424, 556), C. H. Townsend, 1893, J. M. Macoun, 1S97. St. Matthexu Islands. — On St. Matthew Island, Coville and Kear- ney (No. 20S7), Trelease and Saunders (No. 3448), Brewer and Coe (No. 469). On Hall Island, Coville and Kearney (Nos. 2084, 2085). Si. lazvrence Island. — At Northeast Cape, Trelease and Saunders (No. 3443), Cole. Point Barrozv. — Collected by John Murdoch, 18S2-3 (No. 65). Siberian Coast. — At Kayne, or Arakamtchechene, Island, collected on the Ringgold and Rodgers U. S. North Pacific Exploring Expedi- tion, C. Wright, 1853-6. Various other collections of the plant have been made about Bering Sea and north of Bering Strait along the Arctic coast of Alaska, the easternmost record, between Point Barrow and the Mackenzie River, resting on a specimen collected by Lieutenant W. J. S. Pullen, in 1849. The name Salix unalaschcensis which is often cited as published by Chamisso in 1831,^ can not properly, it seems to the writer, be cited as of that date, the word unalaschcensis being merely the first word in a Latin note on a willow to which Chamisso did not give a name. In another precisely similar case he began "Salix ad portum Sancti Francisci." It evidently did not occur to Ledebour that the word had any nomenclatorial intent or value for he did not cite it in his Flora Rossica. The first use of Salix unalaschcensis in such a way as to give it standing in nomenclature appears to be Andersson's citation of it in 1858, as given above. He at that time referred it doubtfully to the plant we now know as Salix fuscescefts Anders. Later, in 1868,^ he referred it to Salix ovalifolia., the species, and the iCham. Linnaea 6: 541. 1831. ^Anders, in DC. Prod. 16' : 291. 1S6S. THE WILLOWS OF ALASKA 333 only species, with which Chamisso's description agrees. Dr. Ryd- berg's recent application of Chamisso's name unalaschcensis to a prostrate willow of the Juneau district of eastern Alaska is discussed under Salix stolonifera. Dr. Rydberg's Salix rotundata^ a homonym for which he after- ward substituted the name Salix cyclophylla^ as cited above, I am un- able to distinguish from ovalifolia except as a common, and perhaps indeed the prevalent, form with orbicular instead of oval leaves. Both forms of leaves occvu- sometimes on the same plant, and all the other characters that distinguish the oval-leaved ovalifolia from other wil- lows are found also in the orbicular-leaved plant. 19. SALIX STOLONIFERA Coville. Sprouting Willow; Plate XLi, Figure i. Salix stolonifera sp. no v. Plant prostrate ; branches of the season smooth, i to 2 mm. in diameter, the underground portions of old stems frequently develop- ing slender subterranean ascending branches or stolons, usually less than a millimeter in diameter; leaf blades commonly 1.5 to 3 cm. long, oval to obovate, rounded or sometimes broadly acute at the apex, either wedge-shaped or rounded at the base, sparingly provided when young with a few early deciduous long straight hairs on the margins and back, entire or with a few teeth near the petiole, glaucous beneath and the reticulations not very conspicuous ; catkins terminating leafy branches of the season, oblong to cylindrical ; scales black, obovate, rounded at the apex, rather sparingly provided on both surfaces with long straight white hairs inclined to be deciduous ; stamens two to each scale, the filaments smooth ; ovary smooth or with some traces of pubescence toward the apex, lanceolate, its stalk shorter than the nectary, the style 1.5 to 3 mm. long, each of the stigmas bifid into two linear segments ; capsule not glaucous. Type specimens in the United States National Herbarium, collected June 10, 1900, at the railway station of Glacier, between Skagway and White Pass, Alaska, by F. A. Walpole (No. 1075). The nearest relative of Salix stolonifera in Alaska is Salix ovali- folia. The characteristic of the production of slender, leafless, sub- terranean branches or stolons, which the specimens of stolonifera usually show, I have never detected in ovalifolia. The length of the styles is perhaps the easiest diagnostic character for one not familiar with the two species. The leaves of stolonifera while similar in form 334 COVILLE and size to tnose of ovalifolia have the reticulations of the veins much less conspicuous on the back at maturity, and the capsules of stoloni- fera are not glaucous. Salix ovalifolia is a characteristic species of the Bering Sea and Alaska Peninsula region, though found sparingly to the eastward as far as Yakutat Bay, while stolonifera is a species of eastern Alaska, in the glacier region from Yakutat Bay to Glacier Bay and Lynn Canal. Stolonifera is evidently the species to which Dr. Rydberg has re- cently applied, mistakenly as I believe, the name itnalaschceizsis of Chamisso.^ From the original description of Chamisso ^ the following characters of zoialaschcensis are abstracted : plant prostrate, with branches a foot long ; leaves obovate, subglaucous beneath, entire (this last character drawn by inference fi'om Chamisso's comparison of his plant with Salix arctica Pall.) ; ovaries smooth. This would identify the plant with ovalifolia^ or ftcscescens^ or stolonifera. The additional character "stylo elongato" excludes _/«5ce5ce/?5, and it is doubtless this same phrase that led Dr. Rydberg to identify Chamisso's plant with the very long-styled stolonifera. But as stolonifera is not known within more than a thousand miles of Unalaska, as the long creeping branches are characteristic of ovalifolia., while they are not characteristic of stolotiifera., and as "elongated" is a relative term, it is reasonable to conclude that Chamisso had in hand not stolonifera but ovalifolia. For further remarks on the name Salix unalasck- censis^ see the account of Salix ovalifolia. Specimens of stolonifera have been examined as follows : Jiineaic. — From the mountains above Silver Bow Basin, Grace E. Cooley, 1S91. From the mountains east of Juneau, at an altitude of 3500 to 3000 feet, F. A. Walpole, 1900 (Xos. 1232, 1242). White Pass. — From the summit of White Pass, about 3000 feet altitude, R. S. Williams, 1S99, F. A. Walpole, 1900 (No. 1249), and at the railway station of Glacier, between Skagway and White Pass (No. 1075). Glacier Bay. — On the gravel deposits near the foot of Muir Glacier, Coville and Kearney (Nos. 621a, 627), Trelease and Saunders (Nos. 3433' in part, 3434, 3435, in part, 3437, 3439, 3449 to 3452), Brewer and Coe (No. 51), Weaker H. Evans, 1S97 (No. 15S). Yakutat Bay. — Near Hidden Glacier, Trelease and Saunders (Nos. 3412, 3413). At Hubbard Glacier, Coville and Kearney (No. 1079). 1 Rydberg, Bull. N. Y. Bot. Card, i : 275. 1S99. ^Cham. Linnaea 6 : 541. 1S31. THE WILLOWS OF ALASKA 335 20. SALIX POLARIS Wahl. Polar Willow. Sa/Lv pohiris VJ AHi.. Fl. Lap. 261. t. ij. 181 2. A very small prostrate willow with stems imbedded in the ground, oval to orbicular-obovate, entire or nearly entire, smooth, deciduous leaves bright green on both surfaces or somewhat glaucous beneath, commonly i to 1.5 cm. long, the oblong to globose pistillate catkins few-flowered, with pubescent or partly smooth ovaries and capsules. It resembles in size and general appearance both leiocarpa and ■phlcbophylla^ but it has shorter catkins than the latter and lacks its persistent skeletonizing leaves. These organs too are less tapering at the base in polar is Fig. 27. Salixpolaris\V^\i\.: J ,1 1 n 1 • 1 J- . 1 «) pistillate catkin, natural and seem to be wholly devoid of the . ^ , . .„ •' size ; 0, pistillate flower, en- long hairs often present on the margins 1^,^^^ six diameters ; c, leafy in pJilebophylla. In its slender naked branch, natural size, stoloniform stems, imbedded in the ground and rooting, it resembles leiocarpa^ but that species has smooth capsules and its leaves are smaller and more uniformly oi'bic- ular, never glaucous on the back, and inclined to be persistent. In the Alaskan region the species, so far as known, is confined to the Arctic zone, about the shores of the northern part of Bering Sea. It was described originally from Lapland and afterward found in northern Asia. The following specimens, in addition to European ones, have been examined : Port Clarence. — On the tvuidra, Trelease and Saunders (No. 33S7, 3385, in part). Reported by Lundstrom also as collected here by the Vega Expedition. Siberia7i Coast. — On Kayne, or Arakamtchechene, Island, collected on the Ringgold and Rodgers U. S. Exploring Expedition, C. Wright, 1853-6. Cape Vajtconver. — Collected by J. M. Macoun, 1891. Our specimens of this plant are few and not sufficiently ample to furnish a comprehensive idea of the form of the leaves and the char- acter of the fruit in Alaskan polar is. This species was reported from Alaska by several of the early expeditions but it is probable that most if not 'all these early collections were either leiocarpa or pJilebophylla. Mr. M. S. Bebb in preparing the list of North American willows for 336 COVILLE Patterson's Checklist in 1892 omitted Salix polaris. Our material, however, though fragmentary and unsatisfactory, makes it probable that the species should again be considered a member of the North American flora. Dr. Rydberg has already taken this view by identi- fying Mr. Macoun's Cape Vancouver specimen as Salix polaris. 21. SALIX PHLEBOPHYLLA Anders Skeleton Willow. ^01. /. 10. Salix buxifolia Trev. ; Trautv. Nouv. Mem. Soc. Nat. Mosc. 2 1832, not ScHLEiCH. 1815. Salix arctica mitior Ledeb. F1. Ross. 3: 619. 1849-51, not Salix arbitscula minor Laest. 1845. Salix p/ileiop/iflla ADDERS. Oefv. Kongl. Vet. Akad. Foerh. 15 : 131. 1858. Salix palaeonejira Rydberg, Bull. N. Y. Bot. Gard. i : 267. 1899. A handsome little willow growing in mats on the ground, well dis- tinguished from other Alaskan willows by the characters given in the key. As in leiocarpa, the bright green leaves are covered on both surfaces with minute light-colored dots, visible under a lens, each of which marks the position of a breathing j^ore. The ovaries and capsules are usually pubescent, though sometimes specimens are found in which nearly the whole surface is entirely smooth. The venation of the leaves is strik- ing. On each side of the midrib are from 3 to 6 conspicuous nerves nearly parallel with the margin but running into it toward catkin, natural size; *, pis- the apex. These principal nerves are con- tillate flower, enlarged six ^ected with each other by several cross nerves, diameters; c, leaf, natural \ c^ .^ • 11 1. 1 , , , , r , , , After the growmg season the leaves die but size ; a, old leaf, skeleton- . ized, natural size. remain attached to the stems, the tissue be- tween the nerves of the leaf becoming trans- lucent, and by the third season waste away, leaving the skeletonized framework to clothe and protect the stems for several years. In leiocarpa the nerves are equally conspicuous but the leaves are not very persistent after the second season and they do not so regularly become skeletonized. The stems of pJilebophylla are stouter than those of leiocarpa., are less completely imbedded in the soil, and do not so often form stolons. The plant grows on the tundra, and occurs along probably the whole Arctic coast of Alaska from the British boundary to Kotzebue and Norton sounds. Specimens examined. Siberian coast. — On Kayne, or Arakamtchechene, Island, collected Fig. 28. Salix phlebo- phylla Anders. : a, fruiting THE WILLOWS OF ALASKA *337 by the Ringgold and Rodgers U. S. North Pacific Exploring Expedi- tion, C. Wright, 1853-6. Port Clarence. — On the tundra of the mainland at sea level, Coville and Kearney (No. 1S73), Trelease and Saunders (Nos. 3385, in part, 3386, 33S8, 33S9), Brewer and Coe (No. 379). Point Barro-iV. — At sea level, John Murdoch, 1S82-3 (Nos. 6, 97). Porcupine River. — ^Without special locality, J. H. Turner, 1891. Under the names Salix retusa L. and Salix angloriim Cham, this willow has been reported from St. Lawrence Island in Bering Sea, St. Lawrence Bay on the Siberian side of Bering Strait, from Chamisso Island and other points in Kotzebue Sound, and from Felly Isle at the mouth of the Mackenzie. S. fhlebophylla was published by Andersson in 1S58 through the citation of an earlier published description, namely, that given under the name Salix retusa by Hooker, Fl. Bor. Am. 2 : 153. 183S-9. Hooker cited two specimens, one collected in Kotzebue Sound, Alaska, by the botanists of Captain Beechey's expedition, the other on the Arctic seashore of British America by Richardson. A mis- understanding of the species phlebophylla on the part of some authors, has been occasioned by the fact that Andersson referred to phlebophylla other specimens which did not in reality belong to the plant described by Hooker as " a very distinct and beautiful species, with glossy, strongly nerved, perennial leaves, the skeleton nerves re- maining in the lower parts of the stem." Andersson further compli- cated the matter when he separated his complex phlebophylla into three forms, by describing each of them as having " capsulae glaber- rimae." Both these mistakes, however, were corrected by Andersson ten years later, when he described phlebophylla as having " capsulis . . . tenuiter puberulis " and " foliis coriaceis nitidis sub lente punc- ticulatis . . . utrinque nervoso-costatis, tertio anno in reticulum can- cellatum ob parenchyma evanescens solutis." ^ By these means An- dersson clearlv restricted the use of the name phlebophylla to the plant to which I have here applied it. Dr. F. A. Rydberg has re- cently ^ referred to phlebophylla several specimens of willow with the lower surface of the leaves glaucous. These do not belong to the skeleton-leaved species with which we are now dealing, and this latter plant being therefore apparently left without a name Dr. Rydberg de- scribed it as Salix palaeoneura^ basing his description on specimens 1 Anders, in DC. Prod. 16^: 290-91. 1868. 2 Rydberg, Bull. N. Y. Bot. Gard. i : 275. 1S99. 3 Rydberg, Bull. N. Y. Bot. Gard. 1 : 267. 1S99. 338 COVILLE collected at Point Barrow by Murdoch. This disposal of the name pklebophylla and the consequent redescription of the skeleton-leaved plant under the name palaeo7teura is clearly inadmissible for the rea- sons given above, and furthermore because the specimen in the Co- lumbia University Herbarium marked " No. 96 He;-b. H[ooker]," which Dr. Rydberg has cited as the type of pklebophylla^ although a mere fragment consisting of a fruiting catkin and a single leaf, is identical with our skeleton-leaved plant. It is of interest to note that Trautvetter in his original description of this plant under the name buxifolia^ the type of which came from St. Lawrence Island, Bering Sea, calls attention particularly to the skele- tonizing of the old leaves: "Folia . . . anno primo baud articulis solvuntur, sed marcescunt, fusca evadunt, quo statu per secundum an- num plantae adhaerent, tertio vero foliorum parenchyma evanescit re- teque venosum cancellatum foliorum plures adhuc annos persistit . . . Species foliis edurantibus notabilis." ^ The name Salix a?iglorum C\\am.'^ has sometimes been used for this species because the specimens of Chamisso and Eschscholtz identified as Salix anglonwi by Chamisso are identical with Andersson's phlcb- ophylla. Dr. Rydberg has pointed out,^ however, that Chamisso did not describe the species but cited Robert Brown's Salix arctica^ a species of eastern Arctic America to which the name anglorum must therefore attach. A plant which has sometimes been confused with pklebophylla^ but which is readily distinguishable by its promptly deciduous leaves, often glaucous beneath, is referred to in the present paper under the name polar is. 22. SALIX LEIOCARPA (Cham.) Coville. Least Willow. Plate XLi, Figure 2. Salix polaris leiocarpa Cham. Linnaea 6 : 542. 1 831. Salix rotundifolia Trautv. Nouv. Mem, Soc. Nat. Mosc. 2 : 304, /. //. 1832. This charming little plant is the smallest of the Alaskan willows. It forms close tufts or cushions, the very slender stoloniform stems im- bedded in the soil, and the leaves, orbicular, smooth, entire, bright green on both surfaces, from a few millimeters to a centimeter in diameter, rising a centimeter or two above the surface. The tyj)e ^ Trautv. Nouv. Mem. Soc. Nat. Mosc. 2 : 302-303. 1S32. 2 Cham. Linnaea 6 : 541. 1S31. 3 Rydberg, Bull. N. Y. Bot. Gard. i : 266. 1S99. THE WILLOWS OF ALASKA 339 specimens of leiocarpa were collected on the island of Unalaska and at St. Lawrence Bay, Siberia, about latitude 65° 40'. It grows on the islands and both shores of Bering Sea and the Arctic Ocean, and above timber line on the Pacific coast of Alaska eastward to Prince William Sound, preferring not a wet soil, like most willows, but a well drained humus intermixed with finely broken rock. The little pistillate cat- kins, barely projecting from the tuft of leaves at the ends of the stems, bear commonly 2 to 4, or occasionally 6 to S flowers, the ovaries and capsules entirely smooth. The specimens examined are as follows : Prince William Sound. — Above timber line on the large, partly forested nunatak of the Columbia Glacier, Coville and Kearney (No. 1364)- Kadiak Island. — Above the alder line on a movmtain back of En- glish Bay, Coville and Kearney (No. 1475), F. A. Walpole, 1900 (No. 1226). SJiumagin Islatids. — Popof Island, from Soo to 1500 feet elevation, Trelease and Saunders (No. 33S0), Kincaid, and at similar elevations on Unga Island, Trelease and Saunders (No. 3379). Aleutian Islands. — At Unalaska, J. M. Macoun, 1S91. Part of Chamisso's type material was also collected here. Doubtless all the Unalaskan specimens were collected at a considerable elevation above sea level. On Atka Island, L. M. Turner, iSSo, where it is a com- mon plant among the patches of crowberry {Einfetruyn nigruni). St. Matthew Island. — On well drained slopes of rock-weathered soil close to the level of the sea, Coville and Kearney (No. 2154), Trelease and Saunders (Nos. 3383, 33S4), Brewer and Coe (No. 476). In similar situations on Hall Island, Coville and Kearney (No. 20S3), Trelease and Saunders (Nos. 30S1, 30S2), Brewer and Coe (No. 438). Point Barrow. — Near sea level, John Murdoch, 1S82-3 (No. 24). Siberian Coast. — Collected at Kayne, or Arakamtchechene, Island by the Ringgold and Rodgers U. S. North Pacific Exploring Expedi- tion, C. Wright, 1853-6. On the Asiatic side of Bering Sea the plant has been found at St. Lawrence Bay as already noted, and was collected on the Russian is- land of Karaginski by Mertens, the botanist of Lutke's voyage, in the years 1S26-9. Ledebour in his Flora Rossica reports several localities in the inland parts of eastern Siberia. It is probable also that some of the specimens heretofore reported from Bering Sea and the adjacent coast of the Arctic Ocean under the name Salix polaris^shl. belong 340 COVILLE to this species. The type locality of Trautvetter's rotutidifolia is given as St. Lawrence Island. The nearest Alaskan relative of Salix leiocarpa^ as indicated in the key, is Salix fhlebophylla to which the student is referred for further comments on the peculiarities of this little group of species. Salix folaris also is a near relative. Salix hehringica Seemen, recently described ^ from a specimen collected at " Luetke-Hafen," ^ near Bering Strait, agrees in most respects with this species. Its leaves, however, are larger, lo by 14 mm., and it is described as having an erect bushy growth. The specimen on which the description was based was a pistillate twig 17 cm. in length. 23. SALIX RETICULATA L. Netleaf Willow. Plate xLii. Salix reticulata L. Sp. PI. 2 : 1018. 1753. Salix orbicularis A-iiUKKs. in DC. Prod. 16': 300. 1S68. A prostrate willow very distinct in its characters, as given in the key, from any other Alaskan willow. Its filaments, in the staminate catkins, have their basal portion densely pubescent ; in all other Alaskan willows the filaments are glabrous throughout. The scales of the pistillate catkins are broadly deltoid-obovate, dark, or sometimes pale, red-purple in color, smooth on the outside, or slightly hairy at the base, pubescent with short curled hairs on the inside, these hairs projecting only slightly beyond the end of the scale. In most willows the hairs on the catkin scales are long, straight and silky, commonly equaling the scale in length. Usually the leaves at maturity are en- tirely devoid of hairs, but sometimes, notably in the specimens from the St. Matthew Islands, the long, straight silky hairs frequently pres- ent on young leaves persist on both surfaces till the leaves are full grown, usually disappearing in age. The species is widely distributed in North America in arctic and arctic-alpine situations and occurs also in Asia and Europe. In Alaska it stretches over the Arctic zone, ex- cept in the extreme north, and southward it occurs at timber line on the mountains from the Juneau region to Kadiak Island, and westward to the Aleutian Islands. Alaskan specimens have been examined as follows : Juneatc.—^Qa.r the summit of the mountains east of Juneau, at an elevation of 3000 feet, F. A. Walpole, 1900 (No. 1233). 1 Seemen, Engl. Bot. Jahrb. Beibl. 52 : 6. 1S95. 2Lutke Harbor, I am informed by the Rev. Sheldon Jackson, general agent of education in Alaska, is the anchoring place for vessels behind the sandspit in • St. Lawrence Bay, Siberia. THE WILLOWS OF ALASKA 34 1 White Pass. — At an altitude of about 3,000 feet, F. A. Walpole, 1900 (No. 1 1 10). At Lake Bennett, J. B. Tarleton, 1899 (No. 15). Tiikon River. — At Coal Creek Hill, Frederick Funston, 1893 (No. H3)- Glacier Bay. — At various points near sea level, Coville and Kearney (No. 669), Trelease and Saunders (Nos. 3395, 3435, in part, 3436' 343S, 3440)^ Brewer and Coe (No. 49). 7'aktitat Bay. — Near Hidden Glacier, Trelease and Saunders (No. 3441, in part). Prince William Sound. — At timber line at Orca, elevation about 3500 feet, Coville and Kearney (No. 1192). Cook hilet. — Between Cook Inlet and the Tanana River, E. F. Glenn, 1899. Kadiak Island. — On the mountain back of Kadiak village, Tre- lease and Saunders (No. 3396), Coville and Kearney (No. 2312), Cole, F. A. Walpole, 1900 (No. 1181). Mountains back of English Bay, Coville and Kearney (No. 1455). At Sturgeon River, Coville and Kearney (No. 2280). Without special locality, C. H. Townsend, 1888. Alaska Peninsicla. — At Kukak Bay, Coville and Kearney (Nos. 1490, 1537), Trelease and Saunders (No. 3390), Kincaid. Shuinagi7i Islands. — On Fopof Island, Kincaid. Also specimens of M. W. Harrington, 187 1-3, probably collected on these islands. Aleutian Islands. — Unalaska, Coville and Kearney (No. 2199), Trelease and Saunders (No. 3397), B. W. Evermann, 1892 (No. 156), Attn Island, J. M. Macoun, 1891. Pribilof Islands. — On St. Paul Island, William Palmer, 1890 (No. 310, in part), C. Hart Merriam, 1891, Kincaid, 1897. St. Alattheiv Islands. — On St. Matthew, Coville and Kearney (Nos. 2089, 2147, 2177), Trelease and Saunders (No. 3393), Brewer and Coe (No. 465). On Hall Island, Coville and Kearney (No. 2081), Trelease and Saunders (Nos. 3391, 3392). Cape Vancouver. — Collected by J. M. Macoun, 1891. Port Clarence. — On the tundra, Coville and Kearney (No. 1872), Trelease and Saunders (No. 3398), Brewer and Coe (Nos. 377a, 396). At the Reindeer Station, James T. White, 1894. Reported at various points on the Arctic seacoast of Alaska but not beyond Cape Lisburne. Andersson in 1868, as cited in the synonymy, gave to the east Si- berian and Alaskan representative of the circumpolar arctic and arctic-alpine Salix reticzilata the distinguishing name Salix orbicu- 342 . COVILLE laris^ and Dr. Rydberg in taking up this name ^ extends the range of the species across the continent, and states that he has seen no typical specimens of Salix 7'eticulata from North America. The distinguish- ing characters assigned by Andersson are the yellowish rose-colored catkin scales and elliptic-rotund, oval-rotund, elliptic-obovate, or ob- long leaves of 7'eticulata and the fuscous scales and suborbicular, or obovate-orbicular leaves of orbicularis. He says also of the latter species, " Truncus longissime serpit ramulos subvillosos radiciformes undique emittens," and, " A formis vulgaribus S. reticulatae habitu abunde diversa." Of these leaf characters it may be said that w^e have specimens w^ith oblong leaves from Alaska, and specimens with orbic- ular leaves from northern Europe, and Dr. Rydberg, although main- taining the species to be distinct, says, "The two cannot be distin- guished by the leaves." Our Alaska collection contains specimens with pale rose-colored scales, and we have European specimens with dark purple scales. As for habit character, we have specimens from Alaska, collected in drier situations than usvial, with branches just as short and rootless and congested as any of those from Europe. An equal lack of constancy is found in the distinguishing characters assigned by Dr. Rydberg. Our specimens of European reticulata have bracts not " oblong" but broadly obovate, and instead of being ' ' densely woolly " they are rarely hairy over the entire surface and are often smooth throughout. The size of the capsule and the density of its hairy covering appear to be correlated not with the continental origin of specimens but with the degree of maturity of the capsule itself. While European as well as American specimens show much variation among themselves, I am unable, from the material now avail- able, to see in our American plant a species distinct from the Euro- pean. Andersson in iS68 published a Salix venusta"^ from Sitka, the de- scription of which suggests that the plant may prove to be a form of Salix reticulata grown in a shaded situation. It is described as dif- fering from reticulata in its long styles and its leaves bright green on both sides though somewhat joaler beneath. It is very desirable that the plant be again collected. It should be looked for on Mount Vers- tovia. 1 Rydberg, Bull. N. Y. Bot. Gard. i : 260. 1S99. 2 Anders, in DC. Prod. 162; 28S. 1868, not Host. 1S2S. THE WILLOWS OF ALASKA 343 INDEX TO THE NAMES OF SPECIES AND SUBSPECIES PAGE alaxensis 311 amplifolia 314 anglorum 338 arbusculoides 323 arctica of Robert Brown 338 arctica of Pallas 326 barclayi 316 bebbiana 306 behringica 340 brachjstachys 311 buxifolia 336 calif ornica 319 capreoides 311 chamissonis 325 commutata 317 conjuncta 318 crassijulis 326 curtiflora 325 cyclop h vlla 333 diplodictya 326 flavescens 310 fulcrata 319 fuscescens 329 glacialis.. 329 glauca 321 hookeriana 314 humillima 323 leiocarpa 33S longistylis 313 minor 336 PAGE mjrtillifolia 325 mjrtilloides 330 niphoclada 322 novaeangliae 325 nuttallii 310 orbicularis 342 ovalifolia 331 palaeoneura 337 pallasii 326 perrostrata 307 phlebophjUa 336 phylicoides 319 polaris 335 pseudomyrsinites 325 pulchra 319 reticulata 340 rhamnifolia 330 richardsoni 315 rostrata 306 rotundata 333 rotundifolia 338 saskatchavana 324 scouleriana 311 seemannii 322 sericea 324 sitchensis 307 speciosa 311 stolonifera 333 unalaschcensis 334 venusta 342 PLATE XXXIII. Sali'x sitcheiisis Sanson. Fig. a. Staminate flowering branch, natural size. b. Staminate flower, showing the nectary, scale, and the single stamen, enlarged six diameters. c. Pistillate flowering branch, natural size. d. Pistillate flower viewed from above, enlarged six diameters. e. Same, lateral view. f. Fruiting branch, with mature foliage. g. Capsule, viewed from the side, showing dried scale and nectary, en- larged two diameters. h. Capsule, split open in dehiscence, enlarged two diameters. (344) Proc. Wash. Acad. Sci. Vol. Ill Plate XXXI HEUOTYPE PRINTING <». salix sitchensis Proc. Wash. Acad. Sci., August, 1901. PLATE XXXIV. Salix alaxensis (Anders.) Coville. Fig. a. Staminate flowering twig, natural size. ^. Staminate flower, enlarged six diameters. c. Pistillate flowering twig, natural size. d. Pistillate flower, viewed from above, enlarged six diameters. e. Branch with nearly mature catkins, natural size. f. Capsule, two views, enlarged two diameters. g: Leafy branch, natural size. (346) Proc. Wash. Acad. Sci. Vol. Ill Plate XXXIV HEUOTYPE PRiirrmG 00. SALIX ALAXENSIS PLATE XXXV. Salix ajnplifolia Covillc. Fig. a. Pistillate flowering twig, seven-eighths natural size. b. Pistillate flower, enlarged five diameters. c. Staminate flowering twig, seven-eighths natural size. d. Staminate flower, enlarged five diameters. e. Branch with fruit and nearly mature leaves, seven-eighths natural size. (34S) Proc. Wash. Acad. Sci. Vol. Ill Plate XXXV HEUOTYPE miNTlNG 03. SALIX AMPLI FOLIA PLATE XXXVI. Salix iarc/ayz Anders. Fig. a. Staminate flowering twig, natural size. b. Staminate flower, enlarged six diameters. c. Pistillate flowering twig, natural size. d. Pistillate flower, viewed from above, enlarged six diameters e. Same, lateral view. ,/". Fruiting branch, natural size. g. Capsule, two views, enlarged two diameters. //. Outlines of leaf margins, enlarged three diameters. (350) Proc. Wash. Acad. Sci. Vol. Ill Plate XXXVI HOJOTYPE PRIKTIMG (B. salix barclayi PLATE XXXVII . Salix commutata Bebb Fig. a. Staminate flowering twig, natural size. b. Staminate flower, enlarged six diameters. c. Pistillate flowering branch, natural size. d. Pistillate flower, enlarged six diameters. e. Fruiting branch, natural size. f. Capsule, two views, enlarged two diameters. g. Outline of typical medium-sized leaf, natural size. h. Outline of leaf margin, enlarged three diameters. (352) Proc. Wash. Acad. Sci. Vol. Ill Plate X XXVII HEUOTTPE PRINTING OX SALIX COMMUTATA PLATE XXXVIII. Salix pulchra Cham. Fig. a. Staminate flowering twig, natural size. b. Staminate flower, enlarged six diameters. c. Pistillate flowering twig, natural size. d. Pistillate flower, viewed from above, enlarged six diameters. e. Same, lateral view. f. Another pistillate flower, viewed from above, same enlargement. g. Twig with mature fruit, natural size. h. Portion of twig and fruiting catkin, showing a peduncle, natural size /. Capsule, two views, enlarged two diameters. /. Leafy branch, natural size. k. Typical leaf, showing stipules, natural size. (354) Proc. Wash. Acad. Sci. Vol. Ill Plate XXXVll f 1/ SALIX PULCHRA MEUOTYPE PRIHTING CO. PLATE XXXIX. Salix glauca L. Fig. a. Staminate flowering twig, natural size. b. Staminate flower, enlarged six diameters. c. Another staminate flower, same enlargement. d. Pistillate flowering twig, natural size. e. Pistillate flower, enlarged six diameters. /. Another pistillate flower, same enlargement. g. Branch with leaves and mature fruit, natural size. //. Capsule, two views, enlarged two diameters. (356) Proc. Wash. Acad. Sci. Vol. Ill Plate XXXIX HEUOTYPE PRINTINS CO. salix GLAUCA PLATE XL. Salix arctica Pall. Fig. a. Staminate flowering branch, natural size. b. Staminate flower, enlarged six diameters. c. Pistillate flowering twig, natural size. d. Pistillate flower, enlarged six diameters. e. Branch with leaves and mature fruit, natural size. f. Capsule, two views, enlarged two diameters. < 35S) Proc. Wash. Acad. Sci. Vol. Ill Plate XL HEUOTYPE PBINTING 00. SALIX ARCTICA PLATE XLI. Figure i . Salix stolonifcra Coville. a. Staminate flowering branch, natural size. b. Staminate flower, enlarged six diameters. c. Pistillate flowering twig, natural size. d. Pistillate flower, enlarged six diameters. e. Fruiting branch, natural size. f. Capsule, two views, enlarged two diameters. g. Portion of underground stem, with stolon, natural size. Figure 2. Salix Iciocarpa (Cham.) Coville. a. Staminate flowering branch, natural size. b. Staminate flower, enlarged six diameters. c. Pistillate flowering twig, natural size. d. Pistillate flower, enlarged six diameters. e. Fruiting branch, natural size. /; Capsule, two views, enlarged two diameters. (3^0) Proc. Wash. Acad. Sci. Vol. Ill Plate XLI MEUOTYPE PRINTING 00. SALIX STOLONIFERA SALIX LEIOCARPA PLATE XLII. Salix reticulata L. Fig. a. Staminate flowering branch, natural size. I). Staminate flower, enlarged six diameters. c. Pistillate flowering twig, natural size. d. Pistillate flower, viewed from above, enlarged six diameters. e. Same, lateral view. f. Fruiting branch, natural size. ir. Capsule, two views, enlarged two diameters. (362) Proc. Wash. Acad. Sci. Vol. Ill Plate XLII mw b W^ We SALIX RETICULATA HaJOTYPE PRINTING 00. PROCEEDINGS OF THE WASHINGTON ACADEMY OF SCIENCES Vol. Ill, pp. 363-370. August 23, 1901, PAPERS FROM THE HOPKINS STANFORD GALA- PAGOS EXPEDITION, 1898-1899. I. INTRODUCTION. In the fall of 1898, Messrs. G. W. Kneass and W. Johnson fitted out, in San Francisco, a sealing schooner, the Julia E. W/ialeu, for a cruise to the Galapagos Islands. Thanks to the generous cooperation and liberality of Mr. Timothy Hopkins, Stanford University was enabled to transform this proposed sealing voyage, in part at least, into a naturalists' voyage. It was arranged that Capt. W. P. Noyes, who commanded the schooner, should take on board two representatives of Stanford University, together with their outfit, should land them on the various islands in the Galapagos group as also upon Cocos and Clipperton Islands, should afford them opportunities to make collections of plants and animals, and should then bring them and their collections back to San Francisco. Dr. C. H. Gil- bert, head of the zoological department in Stanford University selected as collectors on this voyage, Robert E. Snodgrass and Edmund Heller, advanced students in his department, who had had experience as collectors. Everything was carried out as planned. Snodgrass and Heller with their outfit on board, sailed from San Francisco with Captain Noyes on Oct. 25, 1898, touched at Guadalupe Island, November 5, were at Clipperton Island, November 23d and 24th and reached the Galapagos Islands, December 8, 1898. Here they remained about six Proc. Wash. Acad. Sci., Aug., 1901. 363 364 HEIDEMANN months collecting in the various islands till June 23, 1899, and then sailed to Cocos Island where they remained five days, June 29th to July 3d. Thence they sailed homeward and after touching at Clarion Island, in the Revillagigedo group, on August 2, they arrived in San Francisco on August 15, 1899. Their collections include mammals, birds, reptiles, fishes, insects, mollusks, arachnida, Crustacea, echinoderms and plants in all of which departments they strove to make full collections. Most of the material will be permanently retained in Stanford University. The spiders and insects have been sent to Dr. L. 0. Howard, in Washington, for distribution to and study by the government specialists in the various orders. All the collec- tions are to be studied and reported upon by specialists and the results published in these proceedings under the general heading Papers from the Hopkins Stanford Galapagos Expedition^ i8g8-j8gg. ENTOMOLOGICAL RESULTS (1): HEMIPTERA. By Otto Heidemann. U. S. Department of Agriculture. In the collection of hemipterous insects brought back from the Galapagos Islands by Mr. R. E. Snodgrass, in 1899, I find two species new to science. These are described in this paper. Several others, though previously known, had not been previously reported from or collected in the Galapagos. Family PENTATOMIDiE. 1. Podisus sordidus Stal. Podisus sordidus Stal, Freg. Eug. Resa, Ins., p. 221, 1859. Charles, May 10, 1899. Indefatigable, April 28, 1899. Chatham, May 25, 1899. Albemarle, March 11 and 23, 1899. Six specimens and five specimens in larval stage ; three males and females. Stal's type came from the Galapagos Islands. 2. Mutica grandis Dallas. Canthecona grandis Dallas, List i, Hemipt., p. 91, 1852. HEMIPTERA 365 Charles, June 35, 1899. One specimen, a female. This species is found in the West Indies, Mexico and Brazil. It is also recorded from Florida. 3. Nezara viridans Stal. Nezara viridans Stal, Freg. Eug. Resa, Ins., p. 128, 1859. Albemarle, February i, 1S99. A single specimen, a male. The species also occurs in Peru and Panama. It had previously been recorded from Chatham Island in the Galapagos archipelago by Mr. P. R. Uhler (Scien. Res. Expl. Fish Comm. Steamer Albatross). 4. Thyanta perditor Fabricius. Cimex perditor Fabricius, Ent. Syst., iv, p. 102, 1794. Albemarle, June 9, 1899. Chatham, May 25, 1899. Two specimens ; male and female. It belongs to the group which has the spines on the lateral margin of the thorax shorter. Family COREID^. 5. Anasa obscura Dallas. Anasa obscura Dallas, List 11, Hemipt., p. 505, 1852. Chatham, May 25, 1899. Two specimens, male and female. Originally described from the Galapagos Islands. 6. Jadera sanguinolenta Fabricius. Cimex sanguiiiolenta Fabricius, Syst. Ent., p. 721, 18, 1775. Wenman, December 18, 1889. Four specimens, males and females. Two are of the brachypterous form. This species occurs in the West Indies, in Brazil, and is also found in Paraguay. 7. Stenocephalus insularis Dallas (.?). Stetiocephalus insularis Dallas, List 11, Hemipt., p, 482, 1852. Indefatigable, April 28, 1899. A single specimen. It seems to agree with the description by Dallas, but the specimen is too soiled to allow a definite determination. The type specimen came from the Galapagos Islands. 8. Harmostes serratus Fabricius. Coreus scrratus Fabricius, Ent. Syst. iv, p. 133, 1794. Albemarle, February 25, 1899. Two specimens, male and female. The specimens have the prin- cipal characters of Harmostes serratus Fabr., but differ somewhat in having a shorter rostrum ; they belong to the pale variety. 366 HEIDEMANN Family BERYTID^. 9. Jalysus (Metacanthus) tenellus Stal. Jalysus tenellus Stal, Freg. Eug. Resa, Ins., p. 236, 1859. Enum. Hem., iv, p. 128, 1874. Chatham, May 27, 1S99. One specimen, which agrees very well with Stal's description, differ- ing only in the length of the fourth joint of antennae, which is much shorter than the second. Family LYGiEID^. 10. Nysius marginalis Dallas. Nysius margifialis Dallas, List 11, Hemipt., p. 556, 1852. — Stal, Freg. Eug. Resa, Ins., p. 252, 1859. — Butler, Proc. Zool. Soc. London, p. 85, 1877. Two specimens ; male and female. This species has never been re- ported from any place outside of the Galapagos Islands. Family CAPSID^. 11. Miris lineata Butler. Miris lineata Butler, Proc. Zool. Soc. London, p. 89, 1877. Albemarle, June 12, 1899. Two specimens, one is a larva. The adult specimen agrees very well with Mr. A. G. Butler's description of a Miris from Charles Island (Galapagos Islands) except that it is somewhat larger. Family REDUVIID^. (Subfamily Harpactoridae.) 12. Cosmoclopius (Harpactor.) sp. .^ Albemarle, June 12, 1S99, One specimen in the larval condition. Probably Harpactor nigro- annulatus Stal. (Subfamily Nabidae.) 13. Nabis punctipennis Blanchard. Nabis punctipen7iis Blan'CHARD : Gay, Hist, de Chili, Zool., vil, p. 16 f, 1852. — Sign, Ann. Soc. Ent. de France, Ser. 4, iii, p. 577. Charles, May 10, 1899. Albemarle, March 23, 1899. Two specimens; male and female. It very closely resembles the common species Nabis ferns Linne. HEMIPTERA 367 (Subfamily Emesidae.) 14. Ghilianella galapagensis sp. nov. A female. — Body slendei', color brown, abdomen mottled with darker brown. Head nearly thi'ee-fourths the length of prothorax, sparsely granulated, eyes moderate ; the usual porrect fi'ontal spine is reduced to a blunt tooth. Antennaj light brown, first and second joints equal ; the terminal joints are wanting in the specimen. Front legs ochraceous, comparatively short and stout, the large spine near base of femora tipped with black ; tibiae faintly annulated with brown, front tarsi claw-like, equal in length with the tibiae ; femora of the middle legs about as long as abdomen, but the femora of the hind legs longer; the tibiae annulated, at base pale orchraceous. Meso- thorax and metathorax equal in length ; prothorax a little longer and ornamented with two oval-shaped spots, and a longitudinal line in the middle, pale ochraceous, also a streak on the sides near apex; above densely covered with small brown granules, less so below. Meso- thorax and metathorax have a flat surface, the sides obsoletely granu- lated and sharply edged, and a longitudinal, raised line in the middle ; a well defined carina on the underside of the body runs from the base of mesosternum down to the apex of sixth segment of abdomen. The abdomen is gradually inflated from the end of second segment to the fifth and then narrowing slightly towards apex ; the lateral mar- gins are a little raised, more so on the last segments ; the first genital segment is slightly sloping, and the apex rounded off, the second abruptly declivous ; dorsal part of abdomen flat, imder side much rounded ; first and second segments, seen from above, equally long ; the third, fourth and fifth gradually become shorter, the sixth segment is shortest ; at sides of second segment a little behind its base are two small erect spines, also small tubercles at apex in the middle of nearly all the segments, the one on the fourth segment is more prominent. The under side of abdomen is beset with small, stiff, golden hairs, which are irregularly arranged. Length 13 mm. Type. — No. 4931, U. S. Nat. Mus. One specimen, collected on Hood Island, May 8, 1S99, and one larva collected on Albemarle Island, March 15, 1S99. This insect seems so distinct from the other species of the genus, that I have ven- tured to describe a new species from but one specimen. It somewhat resembles G. gibbiventris Champ, and also G. Jiliventris Spin., but differs from both in length of meso- and metathorax, which are equally long, and in the structure of the abdominal segments. The 368 HEIDEMANN species can be easily distinguished by the reduced frontal spine and by the pale ornamental spots on the prothorax. Family SALDID^. 15. Salda rubromaculata sp. no v. A male. — Body blackish, pubescent, with fuscous and yellow markings. Head stout, black between the eyes, in front yellow; two short, black lines running sideways to the cheeks, which are yellow ; tylus testaceous, polished, prominent, and much curved downwards ; underside of head yellowish, on the middle of the throat a black mark; the occiput carries behind the ocelli two orange-yellow, round dots, which are quite conspicuous. Antenuie yellowish, the ultimate joints more fuscous. Rostrum yellow, at tip blackish, reaching the inter- mediate coxae. Pronotum twice as wide as long, slightly narrowing anteriorly to nearly the same width as the head; the callosities, form- ing the anterior lobe, convex, not reaching the sides, rounded by an impressed, transverse line, which is deeper in the middle; the anterior margin straight, narrow, yellow, behind it a round, sunken line; pos- terior margin very concave; the lateral margins straight, narrow, flattened, somewhat reflexed, anteriorly rounded; the humeral angles rectangular, with an oblong tubercle near the sides ; color of the thorax yellow, except the anterior lobe, which is black, a little shining, but shows on front of the sides a small forked yellow streak. Scu- tellum large, twice the length of the thorax, hollowed out a little, be- fore the middle, margins and apex yellow. Hemelytra flat, sericeous ; clavus yellow with a black line in the middle, and a brown dot near the apical part; corium yellow, the inner side towards apex dark fuscous, maculated with reddish-brown ; near costal margin a darker streak with a black spot behind the middle, also one at apex of corium and base of membrane; the discal and apical areoles more pale yellow; sutures and nervures blackish; costal margins narrow and entirely yellow. Membrane pale, with five long areoles ; veins are brownish. Legs yellow, the femora above a little infuscated, coxae fuscous. Sternum black, with broad yellowish-white margins. Ab- domen dark brown, densely covered with fine hairs ; the segments edged with yellow, the genital segment yellowish at apex. Length, 3.5 mm. ; width, 1.5 mm. Type — No. 4930,1!. S. Nat. Mus. One specimen from Albemarle Island, January 23, 1899. This new species belongs to the group, having membrane consisting of five cells. Judging from the descriptions of 6". ventra/is Stal', and S. argentina HEMIPTERA 369 Berg, it seems to approach these. In size and color, it more nearly resembles the latter, but differs in the arrangement of the spots on the corium and membrane, and in having costal margins entirely yellow. Family GERRID^. 16. Halobates Wuellersdorffi, Frauenfeld. Halobates Wuellersdorffi, YKKV^-^-p^\.Ti, Verb. Zool. Ges., v, 17, p. 418. — B. White, Challenger Exp. Zool., v, vii, p. 40. Seven specimens, three males and four females, were taken between Clarion and Clipperton Islands, November 2, 189S. Other specimens were previously found near James Island, Galapagos Islands (Proc. U. S. Nat. Museum, v, xni, p. 194), and in the North Pacific near the California coast. In this lot of Halobates v^iis one female, which carried a few eggs on her under side, attached to the last segments of the abdomen. This bug must have been captured in the very act of egg-laying, as one egg is protruding from the ovipositor. The fol- lowing notes on the subject of egg-laying are from Professor Buchanan White in his report on the Pelagic Hemiptera (Challenger Exp. Zool., V, VII, p. 71). He says: " No observations have been made as to when and where the eggs are deposited. The statement, that the female carries them about, attached to the abdomen, after they have been extruded, Pi'ofessor Moseley informs me is a mistake." Dr. E. Witlaczil in his treatise on Halobates (Wiener Ent. Zeit., Vol. V, p. 333, 1856) mentions, that, during the voyage of the Pisani a feather of a bird was fished out from the ocean, off the southwest coast of the Galapagos Islands, entirely covered with eggs of a reddish color. Doctor Witlaczil prepared them for microscopical examina- tion, and could distinctly observe the embryos of a Halobates. 17. Halobates sp..? Albemarle, January 3, 1899. Five specimens, four females and one male. Doubtless a new species. The material, however, is in such condition that it can not be satisfactorily described. The middle tarsi of all the specimens are more or less damaged. This oceanic bug closely resembles Halobates sericeus Eschscholtz in shape of body and in color; also to Halobates hayanus B. White in form of antennae and front tarsi. But it re- sembles more closely Halobates gennanus B. White in the structure and color of the abdominal and genital segments, and differs only in the terminal joints of antennae, of which the third and fourth are nearly equal, and the second a little longer than the fourth, whilst in 370 HEIDEMANN that species the fourth joint is longer, and the third comparatively smaller. In the front tarsi the second joint is shorter, being half the length of the first joint. The insect also shows some affinities to Halobates regalis Carpenter, and Halobates incanus Witlaczil. SUBORDER HOMOPTERA. Family FULGORIDiE. i8. Mycterodus productus Stal. Mycterodus productus Stal, Freg. Eug. Resa, Ins., p. 278, 1859. Albemarle, January 23, 1899. Nine specimens, varying in color. 19. Jassus (Deltocephalus) sp. ? Albemarle, January 23, 1899. One single specimen, not quite mature. 20. Jassus sp. ? Albemarle, January i, 1S99. One specimen; mutilated beyond recognition. 21. Cicada sp.? A single specimen, in the first or second pupal stage, found on Cocos Island, February 2, 1899. It burrows in the ground and may be found in that stage of development about two feet beneath the surface PROCEEDINGS OF THE WASHINGTON ACADEMY OF SCIENCES Vol. Ill, pp. 371-379. November 7, 1901. PAPERS FROM THE HOPKINS STANFORD GALA- PAGOS EXPEDITION, 1898-1899. II. ENTOMOLOGICAL RESULTS (2) : DIPTERA. By D. W. CoqiTiLLETT, Custodian of Diptera, U. S. National Museum. The earliest recorded capture of Diptera on the Galapagos Islands occurred during the cruise of the British Frigates Ad- venture and Beagle in the years 1826 to 1836, made famous by Darwin's celebrated Narrative, published in 1839. "^^^ ^^^ Diptera then collected were described by Walker in the well- known British Museum Lists. During the years 185 1 to 1853 the Swedish frigate Eugenics also visited these islands, and collected Diptera ; these were de- scribed by C. G. Thomson in 1868. The British steamship Petrel visited them in 1875, and ob- tained two species of Diptera ; these were reported upon by F. Smith in the Proceedings of the Zoological Society of London for 1877, page 84. Finally, the U. S. steamer Albatross, during her cruise in 1887 and 1888 also visited these islands and collected several specimens of an undetermined species of Culex, reported upon by Dr. S. W. Williston in the report published by Dr. L. O. Howard in the Proceedings of the U. S. National Museum, Vol. XII, 1889. Proc. Wash. Acad. Sci., Nov., 1901. 371 372 COQUILLETT During the autumn of 1899 ^^'- Howard received, in ad- dition to insects belonging to nearly all other orders, a series of Diptera collected in the Galapagos Islands by Mr. Snodgrass, of the Hopkins Stanford Galapagos Expedition in the early part of that year. This collection, submitted to the National Museum through Professor Vernon L. Kellogg, contains 413 specimens, representing 35 species, distributed in 26 genera and 17 families. One genus and nine species are believed to be new to science ; eleven species were originally described from specimens collected on these islands, while the remaining fif- teen species have hitherto been reported from South or Central America, the West Indies, or the warmer portion of North America. Family CHIRONOMIDiE. CER.\TOPOGOX GALAPAGENSIS sp. nov. Head black, antenncE yellow, the first joint and apical half dark brown, its hairs dark brown, many towards the apex tipped with yel- lowish white, proboscis and palpi yellowish brown, the latter slender and almost linear ; body dark brown, its hairs yellow, the humeri and a vitta on upper part of pleura yellow, mesonotum opaque ; legs, in- cluding the coxie, wholly light yellow, femora not swollen, destitute of spinous bristles, first joint of hind tarsi slightly over one-half as long as the second, last joint subequal to the fourth, not spinose below, the claws small and of an equal size ; wings hyaline, thickly covered with hairs, third vein ending in the costa near middle of the latter, united to the first vein except at each end, second posterior cell rather long petiolate ; halteres yellowish white; length 1.25 mm. Tagus Cove, Albemarle. Three males, collected January 22, 1899. Type. — Cat. No. 4714, U. S. National Museum. Family CULICID^. CULEX T^NIORHYNCHUS Wied. Culex tceniorhynchus Wiedemann, Diptera Exot., p. 43, 182 1. Albemarle, January 28 and February i and 4. Eight specimens. Occurs over the warmer portion of this continent. The female has dentate front tarsal claws, and Arribalzaga's Tceniorhyiichus tcenio- rkynchzis ^'led.^ with simple claws, must therefore belong to some other species. DIPTERA 373 Family TIPULIDiE. GERANOMYIA STIGMATICA PhiHppi. Plettusa stigmatica Philippi, Verhand. Kais. Kon. Zool.-bot. Gesell. Wien, XV, p. 598, 1865. Albemarle, June 9. One specimen. Described from Chile. Family STRATIOMYID^. PELAGOMYIA ALBITALUS Williston. Pelagomyia albitalus Williston, Trans. Ent. Soc. London, p. 299, Sept., 1896. Albemarle, January i . One specimen. Type locality, St. Vincent, W. Ind. NEMOTELUS ALBIVENTRIS Thomson. Nemotelus albiveniris Tno-^isoyi , Fregatt. Eugen. Resa, p. 462, 1868. Albemarle, January i. A single specimen. The locality, "Manilla," given by Thomson, is probably erroneous. The frigate Eugenics also made collections at the Galapagos Islands. NEMOTELUS ACUTIROSTRIS Loew. Nemotelns aciitirostris Loew, Berl. Ent. Zeitsch., vii, p. 8, 1863. Albemarle, January i. A single specimen. This species was originally described from Cuba. Family TABANIDiE. TABANUS VITTIGER Thomson. Tadanus vtWger Thousot^, Fregatt. Eugen. Resa, p. 451, 1868. James, April 21 and 22; Indefatigable, April 28, and Albemarle, January 23. Six specimens. Originally described from the Gala- pagos Islands. Family BOMBYLID.E. ANTHRAX NUDIUSCULA.? Thomson. Anthrax lateralis Thomso-h, Fregatt. Eugen. Resa, p, 482, 1868. Nee Say, 1823. Anthrax nudiuscula ? Thomson, I.e. Albemarle, January i, 17, iS and 23, and March 21 ; Charles, May 10. Ten specimens. A. lateralis \\a.% described from the Galapagos Islands ; A. nudiicscula from Panama. ANTHRAX BRACHIALIS Thomson. Aftthrax brachialis ThOiMSON, loc. cit., p. 484. 374 COQUILLETT Albemarle, January i . A single specimen. Described from the Galapagos Islands. Family ASILID^. OMMATIUS MARGINELLUS Fabr. Asihis 7nargifiellus Yabkicwjs, Spec. Ins., ii, p. 464, 1781. James, April 21. A single specimen. Originally described from the West Indies, it has also been reported from Brazil. Family DOLICHOPODID^. ANCHINEURA TIBIALIS Thomson. Anchineura tibialis Thomson, loc. cit., p. 507. Albemarle, January 18 and 23; Narboro, January 13. Five speci- mens. Originally described from the Galapagos Islands. PARACLIUS PUSILLUS.? Macq. Dolichopus pusillus? Macquart, Dipt. Exot., Sup. I, p. 121, 1844. Albemarle, January 23; Narboro, January 13. Fourteen speci- mens. Macquart's specimens o\ pusillus came from Brazil. Family SYRPHID.E. BACCHA CLAVATA Fabr. Syrphus clavatiis Y KSs-KiQivs,, Ent. Syst., iv, p. 298, 1794. Baccha facialis Thomson, Fregatt. Eug. Resa, p. 504, 1868. James, April 22 ; Charles, May 10. Two specimens. Thomson described it from the Galapagos Islands. The synonymy is by Dr. Williston. SPH^ROFHORIA SPLENDENS Thomson. Syrphtis spletidens Thomson, Fregatt. Eug. Resa, p. 501, 1868. James, April 21 ; Charles, May 10. Three specimens. Thomson's specimens also came from the Galapagos Islands. MESOGRAMMA DUPLICATA Wied. Syrphus duplicatusWi'E'DK^iX'iiyi, Ausser. Zweif. Ins., 11, p. 142, 1830. James, April 22. Two specimens. This species has been reported from nearly all j^arts of South America. Family SARCOPHAGID^. SARCOPHAGA OBTUSIFRONS Thomson. Sarcophaga obtusifronsTnouso'H, Fregatt. Eugen, Resa, p. 536, 1868. Albemarle, January I, and Charles, May 10. 103 specimens. This DIPTERA 375 and the two following species were originally described from the Galapagos Islands. SARCOPHAGA INOA Walker. Sarcophaga inoa Walker, List Dipt. Ins. Brit. Mus., iv, p. 832, 1849. Albemarle, January i and 16; Narboro, January 13 and 26; Hood, May 15, and Culpepper, December 10. 48 specimens. SARCOPHAGA VIOLENTA Walker. Sarcophaga violenta Walker, loc. cit., p. 826. Albemarle, January iS, Seven specimens. CHRYSOMYIA QUADRISIGNATA Thomson. Lucilia quadrisignata Thomson, Fregatt. Eug. Resa, p. 544, 1868. Albemarle, January i, and Charles, May 10. Eight specimens. Originally described from the Galapagos Islands. Family MUSCID^. SYNTHESIOMYIA BRASILIANA Br. and Bergen. Synthesio7nyia brasiliana Brauer and Bergenstamm, Denks. Math, Nat. Kais. Akad. Wiss., LX, p. 96, 1893. Albemarle, January i and 16. Two specimens. Originally de- scribed from Brazil; the U. S. National Museum contains specimens collected in Georgia and Florida. Family ANTHOMYID.E. LEUCOMELINA PICA Macquart. Leticotnclina pica Macquart, Dipt. Exot., Sup. iv, p. 235, 1849. Cocos Island, in July. Twenty-five specimens. Described from Brazil, and also reported from Mexico. OPHYRA SETIA Walker. Anthomyia setia Walker, List Dipt. Ins. Brit. Mus., iv, p. 956, 1849. Albemarle, January i and 16; Narboro, January 13. Twelve specimens. Originally described from the Galapagos Islands. HOMALOMYIA CANICULARIS Linne. Musca canicularis Linne, Fauna Suec, p. 1841, 1761. Albemarle, January i . Three specimens. A. nearly cosmopolitan species. 376 COQUILLETT Family ORTALID.S:. EUXESTA NOTATA Wied. Ortalis notata Wiedemann, Ausser. Zweif. Ins., 11, p. 462, 1830. Charles, May 10. A single specimen. A common species over the greater part of the United States. EUXESTA NITIDIVENTRIS Loew. Euxesta nitidiventris Loew, Mon. Dipt. N. Amer. , iii, p. 157, 1873. Albemarle, January i, and Charles, May 10. Thirteen specimens. Originally described from Texas ; it also occurs in Georgia and Florida. PAREUXESTA gen. nov. Near Euxesta^ but the first vein covered with bristles on its apical third. Front not punctured, sparsely covered with bristly hairs except around the ocelli, slightly tapering to the lower end, where it is almost as wide as either eye, antennie two-thirds as long as the face, the third joint ellipsoidal, one-half longer than wide, twice as long as the second, which is scarcely longer than wide, arista bare, face in profile concave, not carinate nor foveolate, projecting slightly further forward at oral margin than at base of antennie, clypeus prominent, proboscis short and swollen, palpi well developed, of nearly an equal width, cheeks less than one-fourth as wide as the eye-height, occiput slightly concave on its upper part, thorax bearing one pair of acrostichal bristles, two dorsocentral, three supra-alar, one humeral, two post- humeral, one mesopleural and one sternopleural, scutellum bearing four bristles, abdomen ovate, legs short and robust, calypteres small, wings slightly tapering to their apices, fourth vein distinctly converg- ing toward the third, lower outer angle of anal cell drawn out in a long lobe, small crossvein perpendicular, the hind one nearly so, stigma short, distance between apices of auxiliary and first veins much less than lensrth of hind crossvein. Type^ the following species : PAREUXESTA LATIFASCIATA sp. nov. Head reddish brown, opaque, the occiput (extending as ocellar and orbital triangles upon the front), also usually the face, clypeus and lower edge of cheeks, bluish ; narrow frontal orbits, face, upper and lower border of cheeks and occiput, whitish pruinose ; antennas and palpi yellowish brown ; proboscis and apices of aristae black ; body bluish, subopaque, the abdomen somewhat polished ; an opaque black- ish streak in front of each wing, extending along the posterior side of DIPTERA 377 the mesonotal suture ; last two abdominal segments of female yellow, her ovipositor broad, flattened, scarcely tapering at the apex, bluish, the base yellow ; legs blackish brown, apices of femora yellow ; wings whitish hyaline, marked with four rather broad black cro^sbands, the first just beyond humeral crossvein, second filling stigma and extend- ing in a curve to slightly below fifth vein beyond apex of anal cell ; small crossvein situated beyond this band, third band extends from beyond apex of first vein to lower end of hind crossvein, the fourth borders apex of wing from nearly midway between apices of first and second veins to slightly below apex of the fourth, and is sometimes narrowly connected with the third band along the costa ; at the third vein the apical brown band is from two-thirds as wide to as wide as the preceding hyaline interval ; length, 3 to 4 mm. Fifty-nine males and eleven females. Tower, June 23. Type. — Cat. No. 5557, U. S. National Museum. PAREUXESTA OBSCURA sp. nov. Same as latifasciata except that the entire abdomen and ovipositor of the female are bluish, and the black bands of the wings, especially the last two, are narrower, the apical band at the third vein less than one-fourth as wide as the preceding hyaline interval; length 3 to 3.5 mm. Seventeen males and four females. Albemarle, January i. Type. — Cat. No. 5558, U. S. National Museum. PAREUXESTA INTERMEDIA sp. nov. Equal to latifasciata except that the penultimate segment of ab- domen of the female is bluish, like the preceding segments, and the black bands of the wings are noticeably narrower, the apical band at the third vein being from one-half to three-fifths as wide as the pre- ceding hyaline interval ; length, 3 to 4 mm. Two males and a female. Albemarle, January i . Type. — Cat. No. 5559, U. S. National Museum. PAREUXESTA HYALINATA sp. nov. Like latifasciata except that the penultimate abdominal segment of the female is bluish, and the wings are hyaline, unmarked ; length, 3.5 mm. Two females. Albemarle, January i. Type. — Cat. No. 5560, U. S. National Museum. Family EPHYDRID^. EPHYDRA GILVIPES sp. nov. Green, tinged in places with blue ; halteres, femora and tibiae yel- low ; tarsi brown ; antennae and proboscis black ; iniddle of front 378 COQUILLETT polished, the narrow sides, occiput, cheeks and face, except middle of the upper part of the latter, opaque, gray j^ruinose; two pairs of fronto-orbital bristles, no medio-frontal macrochajta below the ocelli ; antennal arista bearing a short pubescence on the upper side ; body polished, thorax bearing five pairs of dorsocentral bristles, scutellum bearing four bristles ; wings hyaline, spines of costa only slightly longer than the diameter of the costal vein ; front tarsi of male not swollen; length, 4 to 5 mm. Albemarle, February 13. One male and five females. Type. — Cat. No. 4429, U. S. National Museum, CANACE SNODGRASSII sp. nov. Black ; the palpi, halteres and tarsi yellow ; front polished ; four pairs of fronto-orbital bristles, and a short distance toward middle of front from these a row of three or four bristles ; occiput, cheeks, face and clypeus opaque, light gray pruinose ; two stout bristles in the vibris- sal region and one slightly above and behind the center of each cheek ; antennal arista almost bare ; eyes slightly longer than high ; cheeks pos- teriorly as wide as the eye-height ; body subopaque, thinly grayish prui- nose, the pleura densely light gray pruinose ; five pairs of dorsocentral bristles ; scutellum bearing four marginal bristles and a smaller discal pair; wings grayish hyaline ; length, 3 mm. Albemarle, January 23; and Narboro, January 13 and 26. Many specimens. Type. — Cat. No. 4430, U. S. National Museum. Family OSCINID^. HIPPELATES PUSIO Loew. HippelatiS pusio Loew, Berl. Ent. Zeitsch., p. 279, 1872. Tagus Cove, Albemarle, March 23. Three specimens. Also oc- curs in this country, ranging from Massachusetts southward to Florida and Texas. Family AGROMYZIDiE. RHICNCESSA COSTALIS sp. nov. Head black, opaque, gray pruinose ; lower half of front yellowish brown ; face and cheeks yellow ; antennae brown ; pubescence of arista very short ; proboscis brown ; palpi yellow ; body black, opaque, gray pruinose, mesonotum marked with two indistinct brown pruinose vittae ; four pairs of dorsocentral bristles ; legs yellow, the coxae and front legs dark brown ; wings grayish-hyaline, the costal margin be- tween apices of first and second veins brown, sometimes encroaching DIPTERA 379 considerably on the submarginal cell; halteres whitish; length, 1.5 mm. Tagus Cove, Albemarle, March 23. Two specimens. Type. — Cat. No. 4715, U. S. National Museum. Family HIPPOBOSCID^. PSEUDOLFERSIA DIOMEDE^ sp. nov. Head brown; a transversely-oval, elevated, polished, frontal spot reaching slightly below the middle of the front ; a transverse parallelo- grammatic one occupying the lowest median fourth of the front ; orbits elevated and polished ; remainder of the front depressed, opaque, gray pruinose ; shorter hairs of antennae yellow, the stronger ones dark brown, changing into yellow at their apices ; thorax polished brown, the angles yellow, the sides, transverse suture, a spot towards the middle of the thorax from each humerus and a second spot a short distance behind each of these, also two spots in front of the scutellum, opaque, gray pruinose ; middle of sternum yellow ; scutellum polished dark brown, destitute of bristles, posteriorly truncate and ciliate with very short hairs ; abdomen dark brown, opaque, gray pruinose ; wings hyaline, veins brown, the first vein, except its base, usually yellow, last section of the fifth vein and the whole of the sixth except its base, whitish ; apex of first vein noticeably before the small crossvein, apex of second vein about twice as far from the apex of the first vein as from tip of the third ; legs brown, the lower side of the femora and the tibiae except their outer and inner edges, yellow ; length 7 mm. Albe- marle, March i. Four specimens, taken on an albatross {^Diotnedea irrorata Salvin). Type. — Cat. No. 4431, U. S. National Museum. PSEUDOLFERSIA FOSSULATA Macquart. Olfersia fossidata Macquart, Dipt. Exot., 11, p. 434, 1842. Wenman, December 13. A single specimen. Originally described from Brazil. Proc. Wash. Acad. Sci., November, 1901. PROCEEDINQS OF THE WASHINGTON ACADEMY OF SCIENCES . Vol. Ill, pp. 381-389. November 7, 1901. PAPERS FROM THE HOPKINS STANFORD GALA- PAGOS EXPEDITION, 1898-1899. III. ENTOMOLOGICAL RESULTS (3): ODONATA. [Text Figures 29-34.] By Rolla p. Currie, Aid, Division of Insects, U. S. National Museum. The dragonflies contained in the following list were collected by Mr. R. E. Snodgrass in the period from February to August, inclusive, of the year 1899. They comprise seven species in- cluding sixteen specimens. The only references to Galapagos Odonata heretofore pub- lished are contained in the following papers : 1. Account of the Zoological Collection made during the visit of H. M. S. Petrel to the Galapagos Islands. Communicated by Dr. Albert Giinther * * * Neuroptera. By R. McLachlan. Proc. Zool. Soc. London, pp. 84-86, 1877. Two species were recorded, Pantala hymencBa and Traniea species (probably the species afterwards described as T. darzutni hy Kirby). 2. Scientific results of explorations by the U. S. Fish Com- mission steamer Albatross. V. Annotated catalogue of the insects collected in 1887-88. By L. O. Howard. Proc. U. S. National Museum, XII, No. 771, p. 194, 1889. Four speci- Proc. Wash. Acad, Sci., Nov., 1901. (381) 382 CURRIE mens of ySschna and one Tramea mentioned without specific determination. 3. A revision of the subfamily Libellulinae, with descriptions of new genera and species. By W. F. Kirby. * * * Trans. Zool. Soc. London, XII, p. 315, PI. LI, fig. i, August, 1889. Tramea darwini^ new species, described. It will therefore be seen that the collection here reported upon is the most complete thus far made upon these islands. Family AGRIONID^. I. ANOMALAGRION HASTATUM (Say). Agrion hastata Say, Journ. Ac. Phila., viii, p. 38, 1839. Agrion hastatmn Hagen, Syn. Neur. N. Am., p. 'j'j , 1861. Anomalagrion hastatum Selys, Bull. Acad. Belg. (2), xli, p. 255, 1876. — Kirby, Synonymic Cat., p. 140, 1890. — Calvert, Trans. Am. Ent. Soc, XX, p. 240, 1893. — Kellicott, Bull. Ohio State Univ. (4). No. 5, p. 49, March, 1899. — Williamson, 24th Ann. Rep. Dept. Geol. and Natural Resources, Ind., 1899, Blatchley, Indianapolis, p. 280, 1900. Three males and three black females, Albemarle Island, February 14 (Nos. 47-52, inclusive). At first I regarded the females as belonging to some species of Ischnura^ but their resemblance to the males, in size and general appearance, led me to compare them with the sup- posed black females of A. hastatum contained in the National Mu- seum collection and also with the females of IscJmiira verticalis Say. This comparison resulted in revealing a difference in the form of the median lobe of the prothoracic hind margin. In Anomalagrion this is obtusely rounded, flattened, and slightly emarginate or grooved in the middle. In the specimens of Isckfiura the lobe is rounded, but more acutely, not flattened nor emarginate medially. The emargina- tion of A. hastatutn seems to be slightly more pronounced in the Galapagos specimens than in those from Washington, D. C, and other localities in the eastern United States. Distribution. — North America, Cuba, Venezuela, Galapagos Is- lands. Family iESCHNID^. 2. ^SCHNA GALAFAGOENSIS sp. nov. Male. — Face pale blue or green, the f ronto-nasal suture black ; frons with a line separating it from the eyes, and a T-spot above, black, stem of T narrowing anteriorly : clypeus twice as broad as long; labrum pale green or blue, a transverse black line on its basal ODONATA 383 margin, its free edge brown; maxillae and labium pale blue or green, more or less tinged with brown, especially at their apices; vertex black at base, the elevated portion emarginate anteriorly, pale yellow or blue; occiput pale yellow, its hind margin straight; rear of eyes black. Thorax pale brownish, each side with two oblique pale blue stripes, beneath with some black spots; mid-dorsal thoracic carina, humeral and second lateral sutures blackish. Legs black, coxse and bases of femora brown, anterior femora pale brown or luteous beneath. Abdomen with segments i and 2 inflated, 3 constricted before the middle, remaining segments subequal in width; brown, marked with blue or green as follows: all of i, except a posteriorly-emarginate basal spot on the dorsum ; sides of 2, except some dark spots inferiorly ; apical portion of dorsum of 2, except transverse median carina and posteriorly a line on each side parallel to it (the basal brownish area on this segment reaches this carina at its middle) ; sides of 3 anteriorly ; a transverse band on the apex of 3-9, interrupted at the longitudinal median carina ; a transverse spot on the middle of 3-8, also interrupted at the carina, large on 8, small on the other segments ; sides of 3-8 each with three consecutive spots, sometimes indistinct, sometimes large and more or less coalescent, the posterior spot uniting with the apical dorsal band; a dorsal spot covering apical two-thirds of 10, and some apical spots. Sternum of r with an acute, prominent tuber- FiG. 29. ^dEsc/i/ia galapagoensis. Right side of loth segment and appendages. cle which is beset with short spines and long hairs. Auricles of 2 bidentate. A mid-dorsal, basal, keel-like tooth on 10 as in californica and cornigera^ but with three parallel, smaller ones each side; apical margin of 10 somewhat denticulated, this segment a little wider than long. Superior appendages as long as, or a little longer than, 94-10, slightly recurved, their bases slender; basal fourth narrow, then 384 CURRIE widened on the inner side ; apical two-thirds, before the bluntly- pointed apex, with outer and inner sides nearly parallel; outer side slightly convex, with a few small, short spines or denticles; inferior side grooved, with a rather prominent tooth near the base ; above, a prominent median longitudinal carina on the widened portion, this carina sharp and strongly elevated apically. Inferior ap- pendage less than one-half as long as the superiors, subtriangular, strongly grooved above ; apex narrow, truncate, a little upcurved. Wings hyaline, with a uniform slight fuscous tinge, the posterior ones yellow- ish at extreme base. Antenodal portion of costa and some transverse veins in basal part of wing pale, other veins black. Pterostigma almost black. Membranule cinereous, its basal third or fourth whit- ish. Supra-triangular space with one transverse vein in hind wings, none in front wings ; triangle with four cells, two on proximal side (one on this side in right hind wing of this specimen) ; in- ternal triangle i -eel led (2-celled in left forewing) ; on or more columns of four cells between subnodal sector and the sup- plementary sector below it; fore wings with 13-14 antecubitals in first series (14 in right wing, 13 in left), 10 postcubi- tals; hind wings with 8-10 antecubitals (8 in right wing, 10 in left), 11 postcubitals ; ist and 5th antecubitals thicker than the others (ist and 7th in left hind wing) ; anal triangle 3-celled. Female. — Differs from the male as follows : brown area on dorsum of 2 covering all but two apical spots and a transverse stripe, inter- rupted in the middle just in front of the carina ; dorsal median trans- verse spot large on both 7 and 8; 10 almost wholly pale, without basal teeth on dorsum but with more numerous denticles on its apical margin above and with many beneath. Appendages slender, lanceo- late, as long as 9 -f 10. Genital valves reaching a little beyond apex Fig. 30. ^Efchtia galapa goensis. Dorsal view of loth segment and appendages. ODONATA 385 of 9 ; valvular processes rather short. The first segment of the ab- domen has a sternal tubercle similar to that of the male. Supra- triangular space without cross-veins, triangle 3-celled, internal triangle i-celled; in front wings, 14-15 antecubitals (14 in left wing, 15 in right), 1st and 5th thickest, 10 postcubitals ; in hind wings, 8-9 ante- cubitals (9 in left wing, 8 in right), the ist and 5th thickest (ist and 6th in left wing), 11-13 postcubitals (13 in left wing, 1 1 in right). Length with appendages, $ 60 mm., $ 58; abdomen, $ 45, $ 44; front wing, ^ 41, 9 42.5; hind wing, (? 40, 9 41; pterostigma of front wings 3.8, of hind wings 3.4; superior appendages, ^ 4.7, 9 4. Type. — No. 5419, U. S. National Museum. One male and one female, collected on Chatham Island, May 26 (Nos. 45 and 44). The specimens were imperfectly dried and the colors, therefore, are obscured so as to prevent their accurate description. This species is nearly related to y^schna cornigera Brauer and A. califor7iica Calvert.^ 3. AN AX sp. One female, Chatham Island, May 26 (No. 40). This may possi- bly prove to be A. amazili oi Burmeister. It agrees well with the description of this species in Hagen's Synopsis of the Neuroptera of North America, except that in this specimen there is no triangular blue spot on the superior surface of f rons on each side of the triangular black median spot. The appendages are 5 mm. in length, elliptic- ovate, flat, with a low median carina above. Family LIBELLULID^. 4. PANTALA FLAVESCENS (Fabricius). Libellula flavescens Fabricius, Ent. Syst. Suppl., p. 285, 1798. Pantala flavescens Hagen, Syn, Naur. N. Am., p. 142, 1861. — Kirbv Synonymic Cat., p. I, 1890. — Calvert, Trans. Am. Ent. Sec, xx, p. 254, 1893. — Kellicott, Bull. Ohio State Uni. (4), No. 5, p. 93, March, 1899. — Williamson, 24th Ann. Rep. Dept. Geol. and Natural Resources, Ind., 1899, Blatchley, p. 315, 1900. Two females, Charles Island, May 10 and 20 (Nos. 42 and 43). DistributioTi. — This species is nearly cosmopolitan, being found in the tropical portions of both hemispheres, and in the United States as far north, occasionally, as New Hampshire and Wisconsin. 5. PANTALA HYMEN^A (Say). Libellula hymencea Say, Journ. Ac. Phila., viii, p. 18, 1839. Pantala hytnencBa Hagen, Syn. Neur. N. Am., p. 142, 1861. — Kirbv, Syn- iProc. Cal. Acad. Sci. (2), iv, pp. 505-508, pi. xv, figs. 19, 20, 23, 24, 31 and 32, Feb. 19, 1895. 386 CURRIE onymic Cat., p. 2, 1890. — Calvert, Trans. Am. Ent. Soc, xx, p. 254, 1893. — Kellicott, Bull. Ohio State Univ. (4), No. 5, p. 93, March, 1899. — Williamson, 24th Ann. Rep. Dept. Geol. and Natural Resources, Ind., 1899, Blatchley, p. 315, 1900. One female, Charles Island, August 2 (No. 39). Distribution. — United States, Mexico, Cuba, Galapagos Islands. 6. TRAMEA DARWINI Kirby. Tramea darwtni Kirby, Trans. Zool. Soc. London, xii, p. 315, PL li, fig. I, August, 1889. — Kirby, Synonymic Cat., p. 3, 1890. Two males (Nos. 37 and 38) and one female (No. 46) ; the former were collected on Chatham Island, May 23 and 27; the latter on Al- bemarle Island, March 23. Only the female of this species was described by Kirby, and the single female specimen in this collection agrees well with that descrip- tion. The males were thought by me to be a different species until compared with a series of seven males and four females in the U. S. National Museum from Hood, Chatham, Charles and South Albemarle Islands, collected by the U. S. Fish Commission. The females of this series show a remarkable variation in the length of the dark-brown basal spot of posterior wings. In some of them it is hardly longer than wide, in others it reaches one-third of the way, one-half of the way, or even farther, towards the hind margin of the wing. Unfor- tunately the wings are badly torn and the hind margin, in some speci- mens, is entirely absent so that it is impossible to know whether or not the spot does reach this margin in any of them. In the males it reaches the hind margin or to the torn hind edge of the wing. In both sexes the superior surface of the frons and the anterior face of the vertex are more or less extensively, sometimes entirely, metallic purplish, or violet; the labrum has the black portion quite variable in extent, some- times almost completely covering it, sometimes a mere margin. As the two males of the Snodgrass collection are in fairly good condition, it may be well to describe them here. TRAMEA DARWINI Kirby. Male. — Similar to the female. Superior appendages about as long as segments 9 4- 10 of abdomen, black, rufous at base; inferior ap- pendage a little more than one-half as long as the superiors, reaching a little beyond the denticulated portion. Hamule not exceeding the genital lobe. Wings very slightly fumose apically; the posterior ones with the basal spot extending outward as far as the median cross-vein and backward to the hind margin, the anal margin hyaline, tinged with rufous. ODONATA 387 Fig. 31. Caniiacria ftiviipentiis. Geni- talia viewed from the left side : a, ante- rior lamina; ^, hamule ; c, genital lobe. 7. CANNACRIA FUMIPENNIS sp. nov. Male. — Vertex prominent, truncate, brownish, the suture between it and frons black. Frons, nasus and rhinarium brownish. Labrum brownish, bordered anteriorly with black. Labium black ; its palpi brownish, their internal margins bordered with black. Mandibles black, their bases brownish. Occiput dark brown- ish. Rear of head black, with some brownish spots near the eyes. Frothorax dark brown or black, the articulating facets or the head brownish ; posterior lobe broad, erect, bilobed, edged with brownish. Thorax reddish-brown, the sterna and lateral sutures with some dark brown or black markings. Feet black, the anterior femora at base beneath, and the coxae, brownish. Abdomen yellowish- or red- dish-brown ; apex of dorsum of 3 black; 4-9 with a median dorsal back band, widening at the apex of each segment and on 8 and 9 covering almost the entire dorsum ; 10 mostly red- dish-brown, indistinctly darker above. Abdomen beneath with a dark band each side, beginn- ing on 4. Genitalia similar to C. gra- vida Calvert, i. c.,the "anterior lamina stout, deeply bifid, its apices projecting further down, wards than any other part, and armed with short spines. Hamule small, simple, curved; apex acute, black, directed outwards. Genital lobe short, projecting downwards as far as the hamule projects, or a little farther, rounded at the apex which is broader than the base." Fig. 32, Cannacria fumifennis. Gen- italia viewed from below : a, anterior lamina; ^, hamule; c, genital lobe. 388 CURRIE Superior appendages a little shorter than segments 9 -f- 10, brownish, with short, sparse hairs. Viewed from above, they are subparallel in their apical half; basal half with inner margins concave, this con- cavity caused by the basal constriction of the appendage ; apex ob- tuse, rounded, with a small terminal spine on the outer side directed backwards. Viewed from the side, the appendage curves downward strongly from its base, widening to the middle, where it is widest, and where there is a prominent tooth, on the basal side of which are sev- FiG. 33. Cannacrta fiimipennis. FiG. 34. Cannacria fumipennis. Right side of loth segment and appen- Inferior appendage, viewed from dages. below. eral denticles; beyond this tooth the superior and inferior margins are straight, subparallel up to the rounded apex and horizontal. Inferior appendage exceeding the tooth of the superiors by more than one-fourth of the former's length. Viewed from beneath, its lateral margins are slightly convergent from base to apex ; the apex broad, rather deeply excised, outline of excision nearly straight in middle portion and ivithout a tubercle. Viewed from the side, it is slightly concave, a little widened in the middle ; extreme tip black, up- curved, forming a minute blunt hook. Wings yellowish fusco-hyaline, this color darkest between triangle and front margin (darker on posterior wings than on anterior) ; the portion of the wings basad of the arculus, from costa to hind margin, is almost clear hyaline with the exception of the extreme base. Vena- tion dark brown or black, lighter basally near front margin. Ptero- stigma long, rather narrow, dark yellowish, veined with black, sur- mounting one entire cellule and portions of two others. Membranule small, grayish. lo-ii antecubitals in first series on front wings (10 on left side, 11 on right), 6 on hind wings ; 9 postcubitals on front wings, lo-ii on hind wings (10 on left wing, 11 on right, in this specimen), the first three or four postcubitals occurring only in the first series. Three rows of discoidal areolets on anterior wings ; on pos- terior wings, two, increasing. Triangle of front wings crossed by a ODONATA 389 single vein, of hind wings uncrossed. Internal triangle of anterior wings 3-celled. On posteriors, no internal triangle. No supra-tri- angular cross-veins. The single basal postcostal cross-vein is nearer the base than is the first antecubital, in posteriors much nearer. Length with appendages, 49.7 mm.; abdomen, 34; front wing, 37.6; hind wing, 35.6; pterostigma, 4 ; superior appendages, 2.6. Type. — No. 5420, U. S. National Museum, one male collected on Albemarle Island, March 23 (No. 41). Owing to the condition of the specimen it was impossible to de- scribe the colors accurately. This species agrees remarkably well with the original colored figure and description of Ca7inacria batesii Kirby, but not with that author's figure of the male appendages.^ As pointed out by Calvert,^ Kirby's figure represents the superior ap- pendages as without an inferior tooth. This separates C. batesii., not only from C. furcata, but also from the species here described. Ac- cording to that figure, too, the apical outline of the inferior appendage of C. batesii is unlike that of C. fufnipennis. 'Trans. Zool. Soc. London, xii, pp. 300 and 341, PI. liii, fig. i, and PI. Lvii, fig. 9, August, 1889. 2Proc. Cal. Acad. Sci. (2), iv, pp. 547 and 551, Feb. 19, 1S95. PROCEEDINQS OF THE WASHINGTON ACADEMY OF SCIENCES Vol. III., pp. 391-486. [Plates xlih-lxil] November 15, 1901. PAPERS FROM THE HARRIMAN ALASKA EXPEDITION. XXV. THE ALG^. By De Alton Saunders. CONTENTS : Introduction 391 Geographic distribution 39^ Catalogue of species .... 396 INTRODUCTION. Collections of algse were made by the writer and other members of the Harriman Alaska Expedition at Victoria, in British Columbia, and at the following localities in Alaska : Wrangell, Annette Island, Juneau, Glacier Bay, Sitka, Yakutat Bay, Prince William Sound (near Orca and in Virgin Bay), Cook Inlet, Kukak Bay, Kadiak Island, and Popof Island and Unga Island of the Shumagin group. This paper contains an enumeration of the species collected at these localities. Except where otherwise stated, the numbers representing localities are those of the collections made by the writer. The list of Chlorophyceee, except the Oedogoniacege which were determined by Dr. K. E. Hirn, was prepared by Mr. F. Proc. Wasli. Acad. Sci., November, 1901. (390 392' SAUNDERS S. Collins. Most of the Oscillatoriace^ were determined by Dr. Maurice Gomont, and the Kst of Bacillariaceai is entirely the work of Professor A. M. Edwards. Acknowledgment is also due Dr. F. R. Kjellman, who examined many of the Alarias and the species of JFiicus and named the entire collec- tion of CorallinacecC ; to Dr. W. A. Setchell for examining several species of Lamina?-ia andCyanophyce^e ; and to Dr. W. G. Farlow for determining several species of the Rhodophyceae. My thanks are also due to Dr. C. E. Bessey for the loan of valuable books, to Professor Conway MacMillan for librar}^ and herbarium privileges and for the loan of books, and to Miss Josephine E. Tilden for the privilege of examining material, preserved in fluid, of her entire Puget Sound collection. In this paper are catalogued 380 species of alg«, of which nine are new to science and 240 new to Alaska. The number of species, both fresh water and marine, in each of the six classes of algas is : Fresh Water. Marine. TOTA Schizophycese 26 2 2S Conjugat:c 96 0 96 Chlorophjceae 18 26 44 Phaeophyceae 0 70 70 Rhodophyceae I 68 69 Bacillariaceje 32 41 73 GEOGRAPHIC DISTRIBUTION. Though the algal flora of the Pacific coast in not well enough known to enable a map showing the exact distribution of species to be made, yet, enough collecting has been done to indicate the general distribution. The Cyanophyceas, Chlorophyceae, Bacillariacese and the single freshwater species of the Rhodophyceee {Bai?-ackospcr- mum vagmini) are so largely cosmopolitan that they have been disregarded in the table which follows. Of the remaining 126 species, comprising the Phagophyceae and Rhodophycege, only seven are found on the southern California coast, 37 occur on the central California coast, 68 range from Puget Sound north- ward into Alaska waters, 49 are peculiar to the Pacific coast of North America, and 55 are either circumpolar or inhabitants THE ALG^ 393 of the north Atlantic. Furthermore, of the 126 species, 39 are reported from Bering Sea, and of these, 18 are circumpolar or north Atlantic forms and 21 are peculiar to the Pacific coast of North America. At least three distinct regions may be distinguished in the algal flora of the Pacific coast of North America ; a southern, a Californian, and a northern. The southern region extends from Point Conception south- ward, perhaps to the equator. It is characterized by JVereo- cystt's giganteus, Sargassiim agardianimi, Taonia Icnneb acker ce^ Zonaria tourncfortii and many other tropical species. The Californian region extends from Point Conception on the south, to Puget sound on the north, and is characterized by forms like Dictyoneiiron., Post eh ia, Laminaria Sinclair ii^ Lam- inaria andersonu, and Fuciis hai'veyanus. It may more properly be limited on the north by the mouth of the Columbia River and the shore line between that point and Puget Sound may be regarded as a transitional area. The northern region begins at Puget Sound and extends northward to and including Bering Sea. It is characterized by such species as Odonthalia aleutica, Polysiphojiia btpmnata, Eiithora cristata, Rhody7nenia perticsa, Constanttnea rosa- marma, Fucus cvanescens megacephaliis ^ Agariun tumeric Cy- mathere triplicata, Laminaria hongardiana^ Laminaria bul- lata, Dictyosiphoti Joeniculaceus, and Myelofhycus intestinalis . 394 SAUNDERS GEOGRAPHIC DISTRIBUTION OF ALASKAN ALG^ ON THE PACIFIC COAST. Names.' S ,o . = rt U S E< 1 t/3 'a ■.^■^ rt 2 us a u U o 3 ^1 £2 .b o J? ^- s c o.H •^ to S » « E lis C3 E _3 "o '•J X. 'n P3 a ir> bo c •c n Streblonema minutissima Streblonema pacifica * * Streblonema irregularis * * * * * * * * * Kctocarpus tonientosus * * * * * * * Sphacelaria racemosa arctica * Homeostroma undulata 1 * Homeostroma lobata * * * * « * Scytosiphou lonientarius * * Scy tosiphon bullosus * * ■X- * * * * * Coilodesme linearis * * Myelophycus intestinalis * * * * * * * * * * Dictyosiphon feniculaceus * * Desmarestia aculeata * * •St Desmarestia viridis Liebmannia sp * * * * * * * Mesogloia simplex Chordaria flagelliformis * Chordaria abietina * * Ralfsia deusta * * * * * Ral fsia clavata * Chorda filum * Alaria cordata * * * * * * * * Alaria fragilis * * * * Alaria laticosta * Alaria lanceolata * Alaria fistulosa * Laminaria bullata * * Laminaria bongardiana * Laminaria cuneata * * * * * Laminaria solidungula Laminaria saccharina 1 * * * Hedophyllum sessile ... . * * * Hedophyllum subsessile Cymathere triplicata * ' Black face type indicates new species. THE ALG^ 395 Names. 2 S .0 . ^ rt U a 1 en L g u 0 ■a 3 §1 Q a as S a £2 So- il 11 1=1 B 3 "c n to M a *C u n * * * * * * * * * * * * * -X- * * * * * * * * * * * * * * * * * * * * * * * X- * * * * * * * * * * * * * * * * * * * * * *? * * * * * * * ■X- * * * * * * Delesseria b?erii * Delesseria alata Delesseria sinuosa * Delesseria crassifolia * * * * * *? * Odonthalia aleutica * * * Odonthalia kamtschatica * * Polysiphonia bipinnata * * Polysiphonia arctica * * Calithamnion floccosum pacificum Calithamnion plumula * [••••*■■■ * Calithamnion pikeanum * * Ptilota asplenoides * * * Ptilota plumosa 1 * 1 1 396 SAUNDERS Names. S 51 1 .s '5 — ^ 2 o 0 T3 IT. S l< S PL, "=■2 = 1 X-t. Q§ E o o c £2 11 (2^ « e "o U en ho .S n Ptilota serrata •x- * * Antithamnion boreale * Ceramium rub rum ■X- * * * Ceramium codicola * * Microcladia borealis Rhodochorton rothii * Gloiosiphonia furcata * * * Gloiosiphonia californica Cryptonemia obovata * * Dumontia filiforme * * Cryptosiphonia ^ravana * * * Dilsea californica * Dilsea arctica * * * Constantinea rosaniarina * * * Hildenbrandtia rosea * * * Melobesia patens * Lithophyllum farlowii * * LitlTophyllum compactum * * * * * * * * Lithothamnion Iceve Clathromorphum circumscriptum Lepidomorphum yendori -X- * Amphiroa tuberculosa * Amphiroa epiphle^moides Corallina arbuscula *? * Corallina pilulifera filiformis * CATALOGUE OF SPECIES. SCHIZOPHYCEiE. Family CiZff OOCOCCA CE.^. Chroococcus turgidus (Kuetz.) Naegeli. Distributed through a mass of Microcystis jiiarginata which formed a slimy coating on a perpendicvdar cliff over which water was trick- ling. Juneau (75). Chroococcus rufescens (Breb.) Naegeli. Forming with Stigonenia a reddish coating on a rock five hundred feet above sea level. Prince Williain Sound (Trelease 501). Schizothrix lardacea (Cesati) Gomont. Forming bright rose-red tufts on rocks exposed to fresh water spray, near Orca, Prince William Sound (304). Identified by Gomont. THE ALGyE 397 Schizothrix lacustris A. Braun. In a freshwater pool with Stigonema near Prince William Sound (300). Identified by Setchell. Microcoleus vaginatus (Vaucher) Goniont. Forming, with Scytotiema tnirabilis^ a thin coating on damp ground recentl}' covered by snow. Glacier Bay (104). Family NOSTOCACEyS. Nostoc commune Vaucher. Forming thin leathery thalli of indefinite size and shape on damp ground near Glacier Bay (106) ; Hidden Glacier, Yakutat Bay (502). Cells spherical or oblong, 12-18 // in diameter; often two to four cells coalesced. Tegument colorless ; cytoplasm finely granulated. Aphanothece microspora Naegeli. Forming with Chroococcus tiirgidiis a slimy coating on a perpendic- ular cliff over which water was trickling. Juneau (75). Microcystis marginata Naegeli. Forming a slimy coating on a perpendicular cliff near Juneau (75). Dermocarpa prasina Born. & Thur. Abundant on SpJiacclaria raceniosa arctica and Sphacelaria cir- rosa. From Puget Sound to the Shumagin Islands. Dermocarpa fucicola sp. nov. (Plate xlvi, figs. 4 and 5.) Phycotheca Boreali-Americana, No. 801. Plant forming dark violet brown patches 2—12 mm. in extent; cells 40-60 II high, 18-25 /^ broad, ovate, clavate or spatulate, much nar- rowed below ; schizospores abvmdant. On Fucus evanescens mega- cephala^ Puget Sound (440). Forming orbicular or irregular patches which become confluent into irregular masses of indefinite extent. This plant is closely related to Savageau's D. biscayensis^ but dif- fers from it in the larger size of the patches and the shape and size of the individual cells. In D. biscayensis the plant forms orbicular patches i mm. broad and the cells are 25-30 p. broad. Family OSCILLATORIACE^E. Oscillatoria amoena (Kuetz.) Gomont. The plant formed a soft, felt like, dark bluish-green mass 3-10 mm. thick, of indefinite extent, lining the bottom of the outlet of a hot spring. The water in the outlet where the plant was abundant ranged from 80° F. some distance from the spring to 120° F. near the spring. Near Sitka (158). Identified by Gomont. 398 SAUNDERS Phormidium autumnale (Ag.) Gomont. Forming a thin dark blue coating on small rocks in a rapid stream emptying into Kukak Bay (332). Identified by Gomont. Phormidium laminosum (Ag.) Gomont. Forming a thin membranaceous stratum on perpendicular rocks moistened by spray from a waterfall, Orca (301). Identified by Go- mont. Lyngbya aerugineo-coerulea (Kuetz.) Gomont. In a felt-like mass of filaments of Vaucheria. Juneau (74) ; with Zygne7na sp. in a small pond on an island in the Muir Glacier (107). Nostoc sphaeroides Kuetz.? Forming a soft bluish green coating on rocks near Juneau (7=>). This species was submitted to Dr. Setchell, who says of it "The Nostoc is a minute spherical one very often found but I am luicertain as to whether it is N. sphceroldes or not." Desmonema wrangelii (Ag.) Bor. & Fla. Mixed with Tolypothrix tenuis from a clear brook emptying into Glacier Bay (103). In a similar locality and associated with the same species on Fopof Island (404). Family 6" C TTONEMA CByE. Scytonema varium Kuetz. On rocks moistened by spray from a waterfall near Juneau (76). Identified by Setchell. Scytonema myochrous (Dillw. ) Ag. With Tolypothrix tenuis^ forming small tufts on rocks in a brook emptying into Glacier Bay. Identified by Setchell. Scytonema mirabile Bornet. On moist ground near Glacier Bay, with Microcoleus vaginatus (104). On the perpendicular surface of a rock, with Vaucheria^ moistened by dripj^ing water, Kukak Bay (347). Scytonema figuratum Ag. In a freshwater stream emptying into Glaicier Bay (103 ^). Tolypothrix tenuis Kuetz. Forming brownish or blue-green tufts attached to rocks in fresh water. Glacier Bay (300); Popof Island (404). Identified by Set- chell. THE ALG^E 399 Family STIG ONE MA TA CE^^. Hapalosiphon pumilus (Kuetz.) Kirchner. In a freshwater pond near Seldovia, Cook Inlet (424). Stigonema minutum (Ag.) Hassall. Forming a thin brown coating with Chroococctis rjifescens on damp rocks several hundred feet above sea level, Prince William Sound (Trelease i^oi). The threads are about i mm. high, 13—25 t. Cosmarium hammeri Reinsch. (Plate xliii, fig. 7.) . In a freshwater pond near Seldovia, Cook Inlet (422). Diameter 10-14 /y, length 18-22/^. Very close to the variety ^M^aw- gustatum of Boldt. The angles are a little more acute than in the type ; the apex of the semicells is very emarginate. Cosmarium depressum (Naeg.) Lund. (Plate xliii, fig. 17.) In a freshwater pond near Seldovia, Cook Inlet. Diameter 16-20//, length 18, a. Cosmarium holmiense Lund. (Plate xliv, fig. 28.) In freshwater near Kukak Bay. Diameter 32//., length 54//. Cosmarium venustum (Breb.) Arch. In a freshwater pond near Seldovia, Cook Inlet. 404 SAUNDERS Diameter iS//, length 37 /x. In its measurements the Alaskan plant agrees with Nordstcdt's variety indiu-atuw but has the form of the type. Cosmarium latum Breb. (Plate xliv, fig. 4,) In a freshwater pool near Kukak Bay. Diameter 68 /7., length 100, a. Cosmarium contractum Kirch. (Plate xliv, fig. 16.) In freshwater near Kukak Bay. Diameter 22 /a, length 22 //. Cosmarium sexangulare Lund. (Plate xliii, fig. 39.) In a freshwater pond near Seldovia, Cook Inlet. Diameter 27 /i, length 33/2. Cosmarium tumidum Lund. (Plate xliv, fig. 21.) In a freshwater pond near Seldovia, Cook Inlet. Diameter 27-30 //, length 35-38 ij.. Several specimens were found, all of which belong to Kirchner's vaviety subtile, the cytoderm being deli- cately punctate over the whole surface. Cosmarium parvulum Breb. (Plate xliii, fig. 6.) In freshwater. Virgin Bay, Prince William Sound. Diameter 17-19//, length 35-38 ,«. Some of the specimens have a smooth cytoderm and on some it is delicately punctate. Cosmarium kitchelii Wolle. (Plate xliv, fig. 17.) In a freshwater pond Seldovia, Cook Inlet. Diameter 43 ,«, length 51//.. The plant agrees in all three views with Wolle's description except that the three central rows of granules are neither longer nor more conspicuous than the marginal ones. Cosmarium pyramidatum Breb. ? (Plate xliii, fig. 40.) In a freshwater pool near Juneau ; Kukak Bay. Diameter 35 //, length 54//, isthmus 11 /^ wide; cell membranes very delicately punctate. Cosmarium pachydermum Lund. (Plate xliv, fig. 12.) In a freshwater pond near Seldovia, Cook Inlet. Diameter 73 //, length 103 11. Cosmarium undulatum Corda. (Plate xliv, fig. 9.) In a freshwater pond near Seldovia, Cook Inlet (432). Diameter 38 /j., length 59//; cytoderm smooth, edge crenate, ten crenfe to a semicell ; sinus enlarged outward. THE ALG^ 405 Cosmarium pseudogranatum Nordst. (Plate xliii, fig. 21.) In a freshwater pond, Popof Island. Diameter 3^ //, length 51 p.. Cosmarium botrytis Menegh. (Plate xliii, fig. 11.) In freshwater, Popof Island. Diameter 35-43 ,«, length 40-52//. Cosmarium conspersum Ralfs. (Plate xliii, fig. i.) In a freshwater pond, Cook Inlet (424). Cosmarium caelatum Ralfs. (Plate xliii, fig. 2.) In a freshwater pond, Glacier Bay ; only one specimen seen. Diameter 40—41^ [m. Cosmarium portianum nephroideum Wittr. (Plate xliii, figs. 12, Freshwater pond, Seldovia, Cook Inlet. Diameter 21 ,u, length 32 /i ; isthmus 9 /jt broad; sinus 5 [j. wide. The verruciE are short, absent from the sinus. Cosmarium ochtodes Nordst. (Plate xliii, fig. 10.) In a freshwater pond near Seldovia, Cook Inlet. Diameter 64 //, length 97 /-t. Cosmarium intermedium Delp. (Plate xliv, fig. i.) In a freshwater pond near Seldovia, Cook Inlet. Diameter 74 /i, length 66 n, isthmus 1 2 // wide. The plant is cov- ered all over with large pearly granules. Cosmarium subcrenatum Hantzsch. (Plate xliii, fig. 20.) In freshwater ponds, Glacier Bay ; Kukak Bay. Diameter 26—30 /i, length 35—40 //.. Cosmarium phaseolus Breb. (Plate xliv, fig. S.) In freshwater near Seldovia, Cook Inlet. Diameter 24 //, length 27 fi ; sinus 3 fx broad; isthmus 4 /x broad. Cosmarium costatum Nordst. In freshwater near Virgin Bay, Prince William Sound. Diameter 40 /j. Cosmarium pulcherrimum Nordst. (Plate xliii, figs. 18, 19.) In freshwater near Kukak Bay. Diameter 38 //, length 52 /x. Cosmarium quadrifarium Lund. (Plate xliii, fig. 22.) In freshwater near Virgin Bay, Prince William Sound. Diameter 33 ,a, length 40 /j.. 406 SAUNDERS Cosmarium broomei Thwaites. (Plate xliii, figs. 26, 35, 36.) In freshwater, Popof Island. Diameter 40 /x, length 40 ij.. Cosmarium ornatum Ralf. (Plate xliii, fig. 3.) Very abundant in a freshwater pond, Kukak Bay ; Cook Inlet. Diameter 32-45 p.. length 38-75 /i. Cosmarium sphalerostichum Nordst. (Plate xliv, fig.. 6.) In a freshwater pond near Seldovia, Cook Inlet. Diameter 16 yu, length 16 //. Cosmarium pseudotaxichondrum Nordst. (Plate xliii, fig. 5.) In freshwater ponds near Prince William Sound. Diameter 33 //, length 22 /i. Pleurotaeniopsis pseudoconnata (Nordst.) Lagerh. In a freshwater pond near Seldovia, Cook Inlet. Diameter 27 /i, length 38 11. The sinus is broad and very shallow and the margins distinctly striate ; cytoderm finely punctate ; the end view a perfect circle and the chlorophyll body divided into eight equal arms. Pleurotaeniopsis debaryi (Archer) Lund. (Plate xliv, fig. 20.) In a freshwater pond near Seldovia, Cook Inlet, Diameter 65 ,a, length 100 //, isthmus 40 ix broad. Only one speci- men w'as found and this agrees with Nordstedt's \^x\€(.y spitsbergensis. Pleurotaeniopsis ralfsii (Breb.) Lund. In a freshwater pond near Seldovia, Cook Inlet. Diameter 54 //, length 70 <).. Staurastrum dejectum Breb. (Plate xliv, fig. 5.) In a freshwater pond near Seldovia, Cook Inlet (422). Diameter 21 ,a, length 21 //. Staurastrum dejectum mucronatum (Ralfs) Kirchn. Occurs with the type. Diameter 27 //, length 27 //.. Staurastrum ravenelii Wood. (Plate xliv, fig. 29.). In a freshwater pond, Seldovia, Cook Inlet. Staurastrum pygmaeum Breb. In a freshwater pond near Seldovia, Cook Inlet. Diameter 27 .a, length 30 ji. Staurastrum calyxoides WoUe. (Plate xliii, fig. 31.) In freshwater near Prince William Sound (300). Diameter 10 //, length 20 //. THE ALG^ 407 Staurastrum furcigerum Breb. In a freshwater pond near Seklovia, Cook Inlet (422). Diameter 45 //., length 50 //. Staurastrum arctiscon (Ehrenb.) Lund. In a freshwater pool, Virgin Bay, Prince William Sound (302). Common. Diameter 1 16 ij.. Staurastrum polymorphum Br^b. (Plate xliii, figs. 23, 24.) In a freshwater pond near Seldovia, Cook Inlet (402). Diameter 40 //, length 4^^ /z. The end view shows four arms rounded at the ends. Staurastrum echinatum (Perty) Rab. (Plate xliii, fig. 16.) In a freshwater pond near Seldovia, Cook Inlet. Euastrum verrucosum Ehrenb. (Plate xliii, fig. 9.) In freshwater, Popof Island. Diameter 81 //, length 88 fi. Euastrum gemmatum Breb. In a freshwater pond near Seldovia, Cook Inlet. Diameter 40 //, length 67 //. The plant agrees exactly with Br^b- isson's description except that the terminal lobe is not emarginate. Euastrum pokornyanum Grun. In a freshwater pond near Kukak Bay. Diameter 21 /a, length 43 [j.. The basal lobe of the trilobe semicell is crenate, the terminal lobe subcuneate, truncate and excised; membrane smooth. Euastrum oblongum (Grev.) Ralfs. (Plate xliii, fig. 37.) In a freshwater pond near Prince William Sound. Diameter 67 /^, length 130 /x. The semicells are five lobed, all of the lobes having the broad shallow marginal cavity. Euastrum crassum (Breb.) Kuetz. (Plate xliii, fig. 4.) In a freshwater pond near Seldovia, Cook Inlet. Diameter 68 //, length 148 //. Euastrum didelta (Turp.) Ralfs. (Plate xliv. Fig. 24.) In freshwater near Kukak Bay. Diameter 46-60 ,a, length 86-120 //, sinus 16 // deep, bridge 1 1 /x wide. Euastrum ansatum Ralfs. In a freshwater pond near Yakutat Bay. Proc. Wash. Acad. Sci., November, 1901. 408 SAUNDERS Diameter 27 /^, length 54 //. Euastrum elegans (Breb.) Kuetz. (Plate xliv, figs. 2, 25, 26, 30.) Common in freshwater near Yakutat Bay ; Prince William Sound ; Popof Island. Diameter 13-15 a*, length 20-30 /./.. Euastrum affine Ralfs. (Plate xliii, fig. 32.) In freshwater material from Glacier Bay. Diameter 60 11 wide, length 121 /x. Micrasterias truncata (Corda) Ralfs. (Plate xliv, fig. 7.) In a freshwater pond near Glacier Bay. Diameter 92 //, length 97 /i. Micrasterias oscitans pinnatifida (Kuetz.) Rabenh. (Plate xliv, fig. 27.) In a freshwater pond near Seldovia, Cook Inlet. Diameter 60 /z, length 60 /i. Plant is considerably smaller than the measurements given by various authors but agrees perfectly as to shape and markings. Micrasterias rotata (Grev.) Ralfs. (Plate xliii, fig. 25.) In a freshwater pond, Prince William Sound. Diameter 190-220 /j. The plant varies considerably in the length of the processes on the ultimate division of the semicells. Micrasterias denticulata (Br^b.) Ralfs. (Plate xliv, fig. 11.) In a freshwater pond near Kukak Bay. Diameter 90 //, length iio,«. Micrasterias fimbriata elephanta Wolle. (Plate xliv, fig. 31.) In freshwater pond near Seldovia, Cook Inlet. Diameter 350 /a, length 350 11. Micrasterias kitchelii Wolle. (Plate xliv, fig. 23.) In a freshwater pond near Seldovia, Cook Inlet. Diameter 135 m, length 135 /j'-. Sphaerozosma excavatum spinulosum (Del Ponte) Hansg. In a freshwater pond near Seldovia, Cook Inlet. Diameter 8-10 /x, length 11 11. Desmidium swartzii Ag. In a freshwater pond near Seldovia, Cook Inlet. Diameter 35 ,a. THE ALG^ 409 Gymnozyga (?) longata (WoUe) Nordst. In a freshwater pond near Seldovia, Cook Inlet. Diameter 35 //. Family Z TGNEMA CE^E . ' Spirogyra varians (Hass.) Kuetz. In a freshwater pond near Seldovia, Cook Inlet. Diameter 38-40//. Spirogyra porticalis (Muell.) Cleve. In running water, Popof Island. Diameter of the zygospores 32-42//.. CHLOROPHYCEiE. Family PLEUR O CO CCA CE^E. Oocystis solitaria crassa (Wittr.) Hansgirg. Forming a mucous coating on damp rocks near waterfalls. Juneau (75;. Identified by Setchell. YsimWy PROTOCOCCACE^E. Sphaerella lacustris (Girod.) Wittr. On snow near Yakutat Bay, June 23. This is the so-called " red snow " found in standing rain water and on snow throughout Europe and North America. It was also ob- served by members of the party on Muir Glacier and on snow above Orca, Prince William Sound. Family HTDRODTCTIACEyE. Pediastrum boryanum (Turp.) Menegh. In freshwater, Popof Island. Pediastrum angulosum (Ehrenb.) Menegh. Abundant in a freshwater pond, Popof Island. The plant is discoidal, 32-celled, the cells all angled. Family UL VA CE.^. Monostroma fuscum (Post & Rupr.) Wittr. On rocks, Muir Inlet, Glacier Bay (105); Sitka (144); Virgin Bay, Prince William Sound (277) ; Kukak Bay (315) ; Lowe Inlet (16). ^ Several sterile specimens of Zygnenia were collected, but no fruiting material was obtained. 4IO SAUNDERS Frond 40-60 ij. thick, dark green, becoming brownish or blackish when dried, not adhering to the paper ; cells in cross-section usually longest at right angles to the surface of the frond. In the Kukak Bay specimens the frond is about 40 ,a thick, and the cells are nearly square in cross section, agreeing with the typical AI. fuscu?n. In the Lowe Inlet specimen the frond is 30//. thick, the cells in cross section somewhat rounded, agreeing with the form known as M. splendens. The color however is duller than usual in that form. Monostroma vahlii J. Ag. Kukak Bay (316). Frond persistently tubular, torn at the top so as to form a flat mem- brane only at a quite late stage; thickness of membrane 15-25 /z; cells about 1 2 /J in cross section, somewhat arranged in series when seen from the surface. This species has much resemblance in habit to tfie genus Entero- morpha, at least when young. Monostroma groenlandicum J. Ag. Kukak Bay (346). Frond filiform, opening only at the extreme top, when in fruit ; thickness of membrane 25-30//; cells roundish-angular seen from sur- face, radiately elongate in cross-section. Externally the frond of this species is that of a slender, unbranched Enterornorpha^ but the structure is that of Monostroma. It has here- tofore been found only in the Arctic region and along the Atlantic coast, from Greenland to Nahant, Massachusetts. The specimens from Kukak Bay have cells little more than half the size of those in Green- land and New England specimens, otherwise there is no difference. Ulva lactuca rigida (J. Ag.) Le Jobs. Frond visually ovate when young, later becoming of indefinite shape, rather firm. Common in quiet pools, Virgin Bay, Prince William vSound (278) ; Shumagin Islands (396). A very common species, varying in form, texture and dimensions, distributed all over the world. Ulva lactuca myriotrema Le Jobs. On rocks and algte, Sitka (133). Frond pierced with numerous irregular holes. Rather a form than a definite variety. Enteromorpha linza (L.) J. Ag. Yakutat Bay (232). THE ALG^ 411 Frond flattened, the membranes united except for a small space at the margin. Enteromorpha linza. forma lanceolata J. Ag. Yakutat Bay (232). Margins smooth and even. Enteromorpha linza. forma crispata J. Ag. Sitka (156). Margins and often the whole frond crisped and wavy. This species connects the genera Enterojyiorpha and Ulva and has perhaps been oftenest placed in the latter ; but its affinities seem to be more with the present genus. Enteromorpha intestinalis (L.) Link. Metlakatla, Annette Island (37). Frond simple or with a few proliferations at the base, usually en- larged upward; cells arranged in no definite order, 6-12 ix wide, in cross section radiate, 16-30 /-t long, the membrane about twice as thick as the cell length in cross section. Enteromorpha intestinalis ybr/^a cylindracea J. Ag. In a protected sandy pool, Kukak Bay with fortna maxima (316) ; Sand Point, Popof Island (382). The frond is long, slender, and of nearly uniform diameter through- out its length. Enteromorpha intestinalis y£>r;;m maxima J. Ag. Orca (311) ; Kukak Bay, Wx'Cn. forma cylindracea (316) ; Victoria, British Columbia, a -form with small cells and thin membrane, ap- proaching E. Tninima (12). Frond much inflated, usually contorted. Enteromorpha micrococca Kuetz. On cliff, Orca (305) ; Shumagin Islands (398). Frond simple, tubular, of small size, much contorted ; cells 4-5 /a in diameter; in membrane 18—20 11 thick. This species usually grows in dense masses on rocks between tide marks. Enteromorpha prolifera (Muell.) J. Ag. Annette Island (35). Frond more or less abundantly branched ; branches like main frond, not much smaller ; cells arranged in longitudinal series in all but the oldest parts of the frond. These specimens have few branches. 412 SAUNDERS Enteromorpha crinita (Roth) J. Ag. Wrangell (65); Sitka (155); Prince William Sound (309). Frond abundantly branched, usually with a main stem and virgate branches, with cells in longitudinal series, beset with short, tapering ramuli, the smallest of a single series of very short cells. In specimens from this last locality the habit is that of E. intes- tinalis forma cylindracea^ but the structure and the branching are those of E. crinita. Family UL O THRICHA CE^E. Ulothrix flacca (Dillw.) Thuret. Glacier Bay (82). Very abundant, forming a dark green coating on rocks and pebbles on the shore, extending up to within a quarter of a mile of the glacier. Cells one-sixth to two-thirds as long as broad ; filaments 20-40 11 in diameter. Hormidium parietinum (Vauch.) Kuetz. Yakutat Bay ; St. Paul, Kadiak. Cells one-fourth to one diameter in length, often dividing into two or more lateral series, which may develop into a flat membrane. As now understood, U. parietinum includes two forms that were long considered distinct species, and that in their fully developed con- dition are of quite different habit, — the filiform Ulothrix parietina and the membranaceous Prasiola crispa. In the specimens collected at Yakutat both forms are to be found, each apparently usually occur- ring by itself, but both sometimes together. The frond of the Pra- siola may reach several millimeters in width. The species occurs on damp ground, not like most other algae, submerged. Family (EDOGONIACE^E? Oedogonium concatenatum (Ilass.) Wittr. Popof Island. This species was reported by Wolle from Pennsylvania and New Jersey ; I have also observed it in material from Maiden, Mass. Bulbochaete brebissonii Kuetz. In a freshwater pond near Seldovia, Cook Inlet. This species has not been hitherto known to occur in America. The form reported by Wolle does not belong to this species. 'This family -was determined by Dr. K. E. Him, of The Rojal University of Finland, whose notes are here given in translation. THE ALG^ 413 Bulbochaete intermedia De Bar. In a freshwater pond near Seldovia, Cook Inlet. This species according to Wolle is generally distributed throughout the United States. Wittrock records it from north Greenland. Bulbochaete nordstedtii Wittr. In a freshwater pond near Seldovia, Cook Inlet. This species has also been reported by Wittrock from Greenland. I have also found it from Norwich, Conn. Bulbochaete nana Wittr. In a freshwater pond, Shumagin Islands. Reported from north Greenland. The form which Wolle refers to this species belongs, it seems to me, according to his figures, to B. monile. Bulbochaete insignis Pringsh. Wolle reports this species as occurring in many lakes in New Jersey. Family CLADOPHORACE^^. Trentepohlia iolithus (L.) Wallr. Orca, on rocks at 1,000 feet elevation (Trelease). Forming an orange or brick-red coating on rocks ; filaments di- chotomously or irregularly branched; cells 14-20^1 thick in the middle, much constricted at the ends, ij^ to 2 times as long as broad, thick- walled. This is the Veilchenstein of the Germans. It grows on rocks, requires little moisture and can withstand prolonged drouth. When moistened it has a distinct violet odor. Urospora penicilliformis (Roth) Aresch. Phycotheca Boreali -Americana, No. 18. Forming a light green coating on cliffs, Kukak Bay (349). Frond 20-60 // in diameter ; cells from one-third to three diameters in length, usually constricted at the nodes. Chaetomorpha cannabina (Aresch.) Kjellm. Annette Island (46), filaments light green, more curled than usual, generally 80-110 // in diameter; Cook Inlet, near Seldovia (417), less curled, and filaments coarser than in the previous specimens. Filaments light green, S0-150 11 in diameter; cells i to 4 times as long as broad. Chaetomorpha melagonium ybrzwa rupincola (Aresch.) Kjellm. Yakutat Bay (243). 4H SAUNDERS Filaments dark green, attached at base, 300-500 ,a in diameter ; cells i^ to 3 times as long as broad. A large and rather coarse species, abundant throughout the whole Arctic region, and as far south as the cold currents extend in the At- lantic and the Pacific. Rhizoclonium riparium implexum (Dillw. ) Rosenvinge. Yakutat Bay (193), floating in large flocculent masses. Rather light green in color ; filaments 20-30 /z in diameter ; cells i to 5 times as long as broad. In these specimens the filaments reach a diameter of 30 /x ; the cells are sometimes five times as long as broad. No rhizoidal branches were noted, thus placing the form as variety implexum. It is difiicult to distinguish this variety technically from species of ChcEtotnorpha., but all forms of Rhizoclonium have a certain irregularity in form of the cells, which is readily recognized when one becomes familiar with these plants. Cladophora arctica (Dillw.) Kuetz. Glacier Bay (91) ; Ocean Cape, entrance to Yakutat Bay, on rocks (233) ; near Sand Point, Popof Island (381). Filaments 40-90 ix in diameter, straight and rather stiff ; branches erect ; basal parts, especially in older plants, emitting numerous slender rhizoidal descending filaments, by which the whole tuft is matted to- gether. Cladophora scopaeformis (Rupr.) Harv. Yakutat Bay (225) ; Sitka, on exposed rocky points (185) ; Kukak Bay (320, 327), on rocks exposed to direct washing of the waves. Filaments 100—200 ii in diameter, straight and stiff ; branches erect, all but the youngest parts attached to each other by short hooked branches, forming long, simple or branching, slender tufts, from 2 to 10 mm. in diameter. This is a characteristic species of the coast from California north- ward, resembling a larger and coai'ser C. arctica in its later stages. Cladophora flexuosa (Griff.) Harv. Filaments pale green, flexuous, sparingly branched, 20—60 // in di- ameter ; cells 2 to 3 times as long as broad ; ultimate ramuli short, curved, usually secund. The determination of these specimens is based on their resemblance to No. 206. Alg. Am.-Bor. Exsicc. The species is found on both THE ALG^ 415 sides of the Atlantic, but appears not to have been previously reported from the Pacific. The following specimens of Cladophora can be noted by numbers only, specific determination being impracticable at present. Annette Island (17, 45, 48); Wrangell (56); on rocks, Glacier Bay {^^(i^ ; forming masses on rocks, Sitka (157) ; on protected side of exposed rocks, Virgin Bay, Prince William Sound (295). Family GOMONTIACB^^. Gomontia polyrhiza (Lagerh.) Born. & Flah. Popof Island. Basal layer growing in the substance of marine shells, erect filaments extending to the surface, zoospores formed in sporangia. Family DERBESIA CE.^. Derbesia vaucheriaeformis (Harv.) J. Ag. On a sponge in Yakutat Bay (234). Filaments 30-40 it in diameter, simple below, dichotomous above, branches patent, 20-30 11 wide, often with a cuboidal cell near the base; zoosporangia ovoid or pyriform, 140-200 by 50-80 /z, short-pedi- celled. As there are no mature spores on this specimen, there is a possible doubt as to the identification, but the characters agree well with the species named. Derbesia marina (Lyng.) Kjellm. Sitka, in quiet water (149). Filaments 50-60 /;t in diameter at the thickest, tapering slightly; sparingly branched laterally, usually two partitions found at the base of each branch, enclosing a short cell; zoosporangia 150-180 by 90— 120 /i, short pediclled. Family VA UCHERIA CEyE. Vaucheria sessilis (Vauch.) DC. On an overhanging dripping cliff, Juneau (74). Filaments up to 70 11 in diameter ; oogonia usually two or three to- gether, sessile, ovate or ovate-oblong, about 60-150 ,u, beaked ; anther- idia in the vicinity of the oogonia, formed at the end of a short, hooked or curved ramulus. With antheridia and oosfonia. 4l6 SAUNDERS Family CODIACE^^. Codium adhaerens (Cabr.) Ag. Dredged at Kadiak, at 15 meters depth (350). This species usually grows between tide marks and its occurrence at this depth is exceptional. Forming flat expansions, adherent by the lower surface. Codium mucronatum californicum J. Ag. Sitka (170). Forming a terete, dichotomously branching, fleshy, erect thallus ; filaments tipped with a short mucron. Family CHARACE^^} Chara contraria A. Braun. In ponds and streams near Glacier Bay, very abundant (300). Chara fragilis Desv. In a freshwater pond, Shumagin Islands (400) . Nitella acuminata subglomerata'A. Braun. In a fresh water pond near Prince William Sound (300). Nitella opaca Ag. ? In a freshwater pond near Kadiak (419). PHiEOPHYCEiE. Family E CTO CAR PA CE^E. Phycocelis baltica (Reinke) Foslie. Forming minute tufts one mm. or less in diameter on Ralfsia deusta. Sitka (169a). The erect filaments are unbranched, 200-300 /x long by 5-7 ij. wide ; cells 8-10 IX long; plurilocular sporangia 60-80 ii long, 6-9 ix wide, borne on a 3-5-celled stalk, containing 20-30 uniseriate zoospores. Streblonema minutissima sp. nov. (Plate xlv, fig. 3.) Plant composed of penetrating filaments ramifying through the cortical filaments of the host, from which arise short erect filaments intermingled with the peripheral filaments of the host, which are once or twice dichotomously branched bearing above a few short branches that become transformed into uniseriate plurilocular spor- angia 20-30 !i long by 3-5 !x wide. 'Determined by Dr. T. F. Allen. THE ALG^ 417 In the tyfanches of Liebmanjiia sp. from Sitka (i42($). A very minute plant the erect branches of which might easily be taken for a part of the host plant. The penetrating filaments are 1-2 // wide, short, sparingly branched ; cross partitions few and inconspicu- ous, at intervals closely applied to the host cells ; no hairs or unilocu- lar sporangia were observed. Streblonema pacifica sp. nov. (Plate xlv, fig. \a and \b.) Plant composed of irregular branching horizontal threads, from which arise mostly unicellular, haustoria-like filaments which pene- trate into the host plant, and erect filaments arising at right angles to the horizontal ones ; cells of the horizontal filaments 4-8 /i wide, twice as long as the diameter ; erect filaments short, unbranched or once di- chotomous, 30-70 iJ. long, most of them bearing a narrow elliptical plu- rilocular sporangium 5 /i and 13 /i, which contains about five uniseriate zoospores. The plant forms circular dark brown patches 2-4 mm. in diameter on the sporophylls of Alaria. Related to Streblonema niinu- tulu77i of Heydrich, but larger in all its measurements. Yakutat Bay (438). Streblonema irregularis sp. nov. (Plate xlv, fig. 2.) Plant consisting of irregularly branching surface filaments applied closely to the host plant, from which arise numerous simple or spar- ingly branched erect filaments 1-2 mm. high, 9-14 /^ wide, cells as long to twice as long as broad ; from the surface filaments, filaments 10-14 ^'- wide, with cells a little shorter or longer than broad, penetrate the substratum irregularly ; plurilocular sporangia linear, lanceolate or ovate, terminal or lateral on the erect filament, 14-18 ft. wide, 55-70 //. long ; no unilocular sporangia observed. Forming small brown patches on the bulbs of Nereocystis friapus^ Sitka (164). This plant is closely related to Streblonema stilophorea in its gen- eral appearance and method of branching, but differs from it in the shape of the sporangia and the chromatophores of the vegetative fila- ments which are small, round and numerous in this species. Ectocarpus tomentosus (Huds.) Lyngb. Abundant on Fucus evanesceizs^ Sitka harbor (166), and Victoria, British Columbia (49). The rope-like tufts of the Alaskan specimens are fully as long as those from the Atlantic ocean, while the specimens from the Califor- nia coast are rarely over three mm. in length. 41 8 SAUNDERS Ectocarpus confervoides (Roth) Le Jol. On rocks in Yakutat Bay (226^). This plant comes very close to the typical form of the species, it is 10 or more centimeters long, closely intertwined, the branches few, ateral, and secund, 20-40 /jt broad at the base, the ultimate ones short and pointed ; plurilocular sporangia ovate, sessile or short stalked, borne laterally on the main branches, especially abundant on the short ultimate ones, 20-30 /i, by 40— 8o/ji long. Ectocarpus confervoides corticulatus Saunders. Ectocarpus corticulatus SwanKKS, Phyc. Mem. 152.//, 20. On Des77iarestia aculeata^ Popof Island (36S). This species is the same as that described from the California coast though the tufts are longer, and only the main filaments and the lower part of the long primary filaments are uniformly corticated. After examining a large amount of material of this and several other varie- ties of E. confervoides the writer is convinced that E. corticulatus should be considered as a variety of E. confervoides. The plant is of a light olive green, forming flocculent tufts a few mm. to 5 cm. or more in length, the main filament and lower part of the primary branches densely corticated, 60-100 /x broad, ultimate branches short, bearing numerous ovate plurilocular sporangia 16-25// broad, and 40-70 // long. Ectocarpus confervoides pygmaeus (Aresch.) Kjellm. Forming a velvety covering or minute tufts on various algag, from Pugct Sound to the Shumagin Islands. Yakutat Bay (439) ; Shumagin Islands (386). The plant is 2-15 mm. high, sparingly branched ; filaments 10-20 /x broad, 2 to 3 times as long. Pylaiella littoralis (L.) Kjellm. acuta, form. nov. Plant 3—10 cm. or more long, loosely disposed ; main filaments 25- 40 ji wide, branches few, alternate or opposite, ultimate filaments short, pointed, but not pilate ; unilocular sporangia in the ultimate branches 18-24 /^ broad, 5-15 or more in a chain. This plant agrees with the variety opposita Kjellm. in its general ap- pearance but is smaller in all its parts and is not pilate. Very abundant from Wrangell westward to the Aleutian Islands. Kukak Bay (322). The plants form large loose tufts on Fucus evanescens macrocephala and occasionally on rocks in all quiet coves. In several instances it was found extending up brooks much beyond the mean tide level. In THE ALGyE 4I9 fact it seemed to be most abundant and to reach its best development in quiet waters at the mouths of brooks where the percent of salt must be perceptibly reduced. Pylaiella littoralis varia (Kjellm.) Kuck. Common on rocks, and on Fucus and other algae in quiet water from Puget Sound to Bering Sea. Victoria, Juneau, Yakutat and Shumagin Islands. This form is i-io cm. in length, a light faded brown in color, very intricate, the ultimate branches short and standing at right angles to the axis. Pylaiella littoralis densa Saunders. The plant forms rope-like masses 2-4 cm. or more long on Fucus and other alg£e. Victoria, Sitka, Prince William Sound (294), Shuma- gin Islands (3S6). Pylaiella littoralis macrocarpa (Foslie) Kjellm. On fruiting tips of Fucus evanescens tnacrocefhalus ^ Victoria. The plant is 1-3 mm. or more long, the branches and the upper part of the main filament, except for a few-celled stalk at the base and one of the cells at the tip, form plurilocular sporangia. No unilocular sporangia were observed. Family SPHA CELARIA CE^^. Sphacelaria cirrosa (Roth) Ag. Forming small light olive tufts on Fucus evanescens^ Annette Island. Sphacelaria racemosa arctica (Harv.) Reinke. Wrangell (70) ; Yakutat Bay (195) ; Prince William Sound (283). Forming dark olive-brown, densely tufted mats sometimes several cm. wide and i cm. high ; unilocular sporangia abundant on all ma- terial collected at the various stations. Family ENCOELIACE^^. Homeostroma undulatum J. Ag. (Plate xlvi, fig. 3.) On Zoostera ?narina in a quiet cove near Seldovia, Cook Inlet (412). Fruiting plants 3 cm. long, 1-3 mm. wide. The plurilocular sporangia project little if at all above the surface of the plant and are massed together more than is indicated in Reinke's figures. The single hairs are very scarce on all the Pacific coast material. 420 SAUNDERS Homeostroma lobatum sp. nov. (Plate xlvi, figs. 6a ^ 6^, 6c.) Plant broadly linear, lanceolate or ovate, lo or more cm. long, 1-5 cm. wide, narrowed below to a short stipe, dark olive-brown; the edges deeply and irregularly lobed, the lobes irregularly cut and divided ; unilocular sporangia scattered over the whole surface of the plant. Attached to Zostera 7narina. Sitka (114) ; Prince William Sound (296). Cross sections of the young plants were two cells thick, those of the older plants 4 cells thick, the central cells slightly larger than the outer but not at all elongated. No plurilocular sporangia were observed. Homeostroma latifolium (Grev.) J. Ag. Occasional in quiet sandy coves. Annette Island (39) ; Sitka (143) ; Popof Island (367). Punctaria plantaginea Grev. On exposed rocks near entrance to Yakutat Bay (229). The plant is 4-10 mm. wide, and 5-10 cm. long. Both unilocular and plurilocular sporangia are abundant. Some of the specimens approach Foslie's variety linearis? Myelophycus intestinalis sp. nov. (Plate xlvii.) Plant dark reddish bi-own, loosely caespitose, cylindrical, hollow with age, much twisted and intestiniform, narrowed below to a dis- tinct solid stipe, 5-12 mm. long; the inner layer of tissue composed of long colorless cells, the intermediate layer composed of 2-4 irregu- larly arranged rows of thick-walled cuboidal cells giving rise to broad coarse paraphyses composed of 4-8 thick-walled cells ; sporangia very abundant, elliptical or obovate, scattered irregularly throughout the frond, 45-60 /Jt long, 20-30 /x wide, arising like the paraphyses from the intermediate layer of tissue. Attached to rocks in the sublittoral zone from Puget Sound to the Shumagin Islands. More abundant in quiet coves. Glacier Bay (113); Sitka (192); Yakutat (252); Popof Island (359); Puget Sound (Gardner 215). This plant was at first referred tentatively by the writer to Foslie's Chordaria attenuata. Foslie states '^ however that this i^lant is a form of Scytosiphon ; Mr. F. S. Collins has kindly examined specimens of Foslie's plant and agrees that it is a Scyiosipkon and quite distinct from the Pacific plant. M. intestinalis is less firm in texture and is lighter colored than Kjellman's M. ccespitosa ; in cross section the 'Foslie, Om Nogle Arctiske Havalger. ^Nja Havalger, Vol. 13 : 97. THE ALG^ 421 paraphyses are much broader and shorter, and the sporangia broader than in M. ccespitosa and the central layer of tissue composed of only 2-4 rows of cells while in M. ccespitosa there are 10 or more rows. The plant so closely resembles Scytosiphon lomentarius in color and general appearance that it has probably been passed over by col- lectors. It is however somewhat firmer in texture and not at all con- stricted. Specimens collected from Puget Sound averaged much smaller than those collected farther north. From Sitka northward the plant is more abundant than Scyiosip/ioti lomentarius. Scytosiphon lomentarius (Lyngb.) J. Ag. Abundant, Puget Sound; Annette Island (40) ; Glacier Bay; Sitka (892) ; Yakutat Bay (2290) ; Kukak Bay; Shumagin Islands (360). Scytosiphon lomentarius complanatus Rosenv. Juneau; Glacier Bay (98). Scytosiphon buUosus Saunders. On rocks in the sublittoral zone, Sitka (145) ; Cook Inlet (408). Heretofore this species was known only from the type locality, Monterey Bay. (Am. Alg. 251.) Phyllitis fascia (Muell.) Kuetz. Abundant in protected places in the littoral zone from Puget Sound to the Shumagin Islands. Annette Island (41); Glacier Bay (94); Yakutat Bay (220) ; Kukak Bay (319) ; Cook Inlet (409, 410). The specimens from the northern localities are much larger than the average plant from the California coast and the Atlantic coast of North America. Those from Cook Inlet are 20-35 cm. long and 2-4 cm. wide. Colpomenia sinuosa (Roth) Derb. & Sol. On Cystophyllum lepidum, Prince William Sound (268) ; Yakutat Bay (420). This widely distributed and usually common species was seen but twice during the trip. It is common in quiet coves from Puget Sound to southern California. Coilodesme linearis sp. nov. (Plate xlviii.) Phycotheca Boreali-Americana No. 824. Plant linear, tubular, olive brown, 8-20 cm. long, narrowed below to a short stalk (1-2 mm. long) ; tissues thin and delicate, composed of three to four layers of cells ; unilocular sporangia scattered singly throughout the plant, 11-14// wide, 15-20/^ loi^g* On Cystophyllum lepidufn^ Popof Island (399) ; Kukak Bay 42 2 SAUNDERS The plant is attached to the host in great numbers. It differs from C. californica in its shape, size and the size of the unilocular spo- rangia. The tissue is more delicate, being composed of from two to three layers of colorless cells, a single row of endodermal cells and one of poorly differentiated epidermal cells. Coilodesme californica (Rupr.) Kjellm. Occasional on Systophyllum leptdu?ti from Puget Sound to Yakutat Bay. Victoria; Annette Island (38) ; Wrangell (58) ; Yakutat Bay (224). No fruiting plants were seen, but the shape and structure of the specimens obtained are the same as in those of the California coast. It is much less abundant in southern Alaska than on the shores of Califor- nia and apparently is wholly replaced further north by C. linearis. Coilodesme bulligera Stroemf . Abundant on rocks in the littoral zone in quiet coves, from Puget Sound to the Aleutian Islands. Wrangell (=58) ; Yakutat Bay (222) ; Prince William Sound (282, 312) ; Kukak Bay (345/^) ; Shumagin Islands (390a). Soranthera ulvoides Post & Rupr. Saunders, Phyc. Mem. 165. PI. 29, fig. 4 and 5. Abundant in the littoral and sublittoral zone, in rather quiet pro- tected places, on rocks, Rhodomela larix, and Rhodufnea Jloccosa. Victoria (2) ; Wrangell (69, 120, 162) ; Yakutat Bay. Family DESMARESTIA CE.E. Desmarestia viridis (Muel.) Lamour. In the ellittoral and sublittoral zones. Glacier Bay (iio) ; Prince William Sound (274) ; not uncommon but less abundant than the next species. Desmarestia aculeata (L.) Lamour. One of the most abundant of plants in the ellittoral and sublittoral zones from Puget Sound to the Aleutian Islands. Victoria (8) ; Sitka (i8o>^); Wrangell; Yakutat Bay(226>^); Kukak Bay (322^^ ) ; Shumagin Islands (369). Family DICTTOSIPHONA CE^E. Dictyosiphon foeniculaceus (Huds.) Grev. A common plant on rocks, Scytosiphon and other plants from Puget Sound to Bering Strait. Annette Island (42) ; Wrangell (59) ; THE ALG^ 423 Juneau (72) ; Prince William Sound (285) ; Shumagin Islands (341) ; Glacier Bay (96). Family EL A CHISTA CE.^. Elachista lubrica Rupr. Phycotheca Boreali-Americana No. 828. On Rhodymenia pahnata in the littoral zone. Wrangell (66) ; Glacier Bay (83) (lOi) ; Prince William Sound (306) ; Yakutat Bay (242). Family CHORD ARIACEyE. Myrionema strangulans Grev. (Plate xlvi, figs. 1,2.) On Ulva lactuca. Sitka (146). Abundant also on the California coast. Eudesme virescens (Carm.) J. Ag. Not uncommon on rocks and Zostera mariiza in the sublittoral and littoral zones. Sitka (115-177); Glacier Bay (194); Shumagin Islands (406^^ ) ; Prince William Sound (284). The specimens from Prince William Sound are somewhat doubt- fully referred to this species. The plant is much smaller than the other specimens, much more branched throughout and of a light yellow color, resembling in these respects Zanardini's E. Jlavescens . The micro- scopic structure however is identical with that of E. virescens. Leathesia difformis (L.) Aresch. On rocks and algas in the littoral zone from Puget Sound to the Shumagin Islands. Victoria (2^) ; Annette Island (32) ; Wrangell (7o>^) ; Sitka (142) ; Yakutat Bay (254). Mesogloia simplex sp. nov. (Plate l, figs. 3, 4.) Plant soft mucous, olive-brown, unbranched, tubular or intestini- form, hollow, rounded above, narrowed below to a short indistinct stipe ; central filaments few, distinct, irregularly branched ; peripheral filament short, simple, 2-3-4-celled ; unilocular sporangia ovate or elliptical, pyriform, 15-25 /;l by 25-35 /j, arising from the subcortical area. In structure this plant very closely resembles Gobia^ agreeing closely with Gobi's figure and description, but lacks the parenchymatous structure of that genus. It is no doubt one of the Ckordariacece, which is given this somewhat provisional name until the plurilocular sporangia are found. Attached to old worn plants of Chordaria abietina. Sitka (128). Proc. Wash. Acad. Sci., November, 1901, 424 SAUNDERS Small immature specimens of this plant are also found on the speci- mens of Chordaria abietina^ from Puget Sound, distributed by Miss J. E. Tilden (Am. Alg., No. 348). Chordaria flagelliformis (Muell.) Ag. Abundant in protected places in the sublittoral zone, attached to rocks and to other algse. Sitka (122) ; Glacier Bay (96) ; YakutatBay (193^ 231). The plant has frequently been reported from the Atlantic shores of Europe and America, the Baltic Sea, the Arctic Ocean, and the shores of Kamchatka. Chordaria abietina Rupr. Attached to rocks in exposed places in the littoral zone. Sitka (126) ? Prince William Sound (291) ; Shumagin Islands (380). This species is much less abundant than on the California coast and all specimens collected are smaller than the average plant of the species from that region. ? Liebmannia sp. (Plate xlix.) A single specimen of a AIesogloia-Y\\iQ. plant was collected at Sitka (142a). It bears an abundance of unilocular but no plurilocular sporangia, hence its exact position is in doubt. The arrangement and structure of the axial tissue and the peripheral filaments closely re- semble those of Liebma7inia. Family RALFSIACE^^. Ralfsia deusta (Ag.) J. Ag. Sitka (169); Kukak Bay (324) Orca, Prince William Sound (267a). The plants were loosely attached to rocks in the sublittoral zone. All specimens collected were sterile. Ralfsia clavata (Carm.) Farl. Yakutat Bay and Cook Inlet (4133^ ) . Forming light olive-green patches 5-10 mm. in diameter, which finally produce an indefinite coating on rocks ; in the sublittoral region. Family LAMINARIACEyE. Chorda filum (L.) Lamour. Found in the sublittoral region. Prince William Sound (273) ; Popof Island (383). At both stations the plant was found in quiet sandy coves in great abundance. THE ALGyE 425 Alaria fragilis sp. nov. (Plate liv.) Plant of small size (4-8 dm. long) ; blade lanceolate or linear, undulate on the margin, 1-2 dm. broad, substance thin membrana- ceous, brittle, drying dark ; midrib quadrangular in cross section, pro- truding equally on each margin ; stipe short, rounded at base, slightly flattened above, 7-12 cm. long; rachis 6—15 cm. long, slightly flat- tened but no broader than the stipe; sporophylls few (8-18), distant, oblong elliptical, often oblique at the base, veiy obtuse above, nar- rowed below to a stalk (5-15 mm. long) ; sporangia confined to the basal third of the sjDorophyll. Dr. Kjellman compai'es this plant to Harvey's specimen labeled Alaria pylaii Grev.^ from Vancouver Island, but he agrees that Harvey's specimen is distinct from Alaria pylaii of the Atlantic and Polar Seas and is an undescribed species. This plant differs essen- tially from the description of A. pylaii in having a longer stipe and the sporophylls few and distinct. In the sublittoral zone. Glacier Bay (So^ ) ; Prince William Sound (257); KukakBay (333^)- Alaria fragilis forma buUata form. nov. With the last, Glacier Bay (79). With this species were collected several specimens that agree with it except that the blade is densely covered with small bullations, occa- sionally a plant being found that had only a very few or almost no bulla- tions. It may be a distinct species but it seems preferable to regard it as a bullate form of the last until it can be further studied. Alaria laticosta Kjellm. (Plate lv.) In the sublittoral zone, in protected coves, Kukak Bay (333). Plant of medium size, 1-2 mm. ; stipe short, round, 2-5 mm. long; rachis long muriculate, slightly broader than the stipe ; lamina broadly linear, dark brown, drying blackish, undulate on the margin, plicated and fluted, 10-20 cm. broad, tapering below to the transition point, midrib 7-12 mm. broad; sporophylls numerous, long and narrow, rounded at end, gradually narrowed to a short indistinct stalk, fruit usually confined to the lower two-thirds of the sporophyll, var3dng in size, 10-30 cm. long, 1-2 cm. wide, and borne on a stalk 4 mm. long. Dr. Kjellman referred the plants sent him to this species with some doubt. He says : " The form, color and consistency of the blade, and the form, width and rigidity of the sporophyll differ somewhat from this species." 'Harvey's Notes Col. Alg. N. W. Coast, 165. 426 SAUNDERS Alaria lanceolata Kjellm. (Plate liii.) In the sublittoral zone. Glacier Bay (iii); Sitka Harbor (178). The specimens obtained agree well with Kjellman's description, and specimens submitted to him were pronounced to be this species, which is easily recognized by the tufts of long cryptostomata which in no other species are so large and abundant. Alaria cordata Tilden. (Plate lvi.) In the sublittoral zone on exposed point of an island opposite the entrance to Yakutat Bay (230). The plant was growing in great abundance at this station but was not seen again on the trip. The writer's specimens are certainly identical with Miss Tilden's plant, of which, by her kindness, he has seen both herbarium and for- malin specimens. There is also in the writer's herbarium a young plant of this species, from Puget Sound, collected by Mr. N. L. Gard- ner and labelled by Dr. Setchell Alaria esculenta ?. The stipe is of medium length (15 cm.), round, dark and firm; rachis short and broad. The blade is oblong, lanceolate (250-450 cm. long), somewhat undulate, plicate, light olive-green, firm ; midrib pro- truding equally on both sides ; medulla slightly swollen near the mar- gins; sporophylls few (7-10 on a side), arising seriately on a short stalk, broadly linear, ovate, cuneate or somewhat cordate at the base ; obtuse or occasionally acute above, sporangia covering most of the sur- face, 25-40 cm. long, 3-6 cm. wide. Alaria fistulosa Post & Rupr. (Plate Lvii.) The first specimen of this large and interesting plant was a fragment of the midrib washed ashore near Wrangell. At Juneau several much worn specimens were obtained but no plants were found in situ. In Glacier Bay it was abundant from the lower part of the sublittoral zone to a quarter of a mile from the shore. Although some immature plants measured i 2 feet in length the plant does not reach the size nor is it as abundant as farther north. In Yakutat Bay, Prince William Sound, and Cook Inlet a few fragments were found washed ashore but no mature specimens were seen growing. This may be due to the fact that all landings were made in protected places in the bays while this plant loves considerable exposure. Near the moutb of Kukak Bay there are numerous reefs 5-10 fathoms or more below the surface. These reefs are marked by patches of this species, sometimes an acre or more in extent. The plant not only reaches the surface but floats for several meters on the surface. The plant is of a very dark olive-brown color, the blade being broadly linear, thin, papery, and smooth, 2-8 or 10 dm. broad; the THE ALG/E 427 midrib is 15-40 or more mm. broad, the central part inflated, and di- vided by narrow septa into air vesicles of various lengths ; near the base of the blade the septa become indistinct and then disappear, the inflations also disappear some distance above the transition point ; the stipe is short (5-10 cm, long), black, solid, and rounded at the base, flattened above and gradually passing into the rachis, which is broad and short ; sporophylls very numerous, crowded, spatulate, elliptical or obovate, rounded at the ends and narrowed below to a stipe of con- siderable length (3-4 cm.) ; fruiting area covering nearly the entire surface of the sporophyll. No complete specimens of mature plants were measured but many fragments were cast ashore having a blade which measured 3—7 meters in length and 4-10 dm. in width., De Toni ' credits this species, on the authority of Dr. Anderson, to California. Dr. Anderson informed the writer that he had seen no specimens from the California coast and had no record of its occur- rence there. He admitted that several of the I.a7ninariaccce credited in his list to the northern coast of California had been included in the belief that they might occvir there. Pleurophycus gen. nov. Setchell & Saunders. (Plate lii.) Plant attached to the substratum by hapteres, consisting of a single un- divided blade with one central distinct midrib ; no perforations or auricles at the base of the blade ; stipe simple ; rauciferous canals wanting ; fruiting area confined to the midrib ; sporangia and para- physes as in Laitiinaria, Pleurophycus gardneri sp. nov. Setchell & Saunders. (Plate lii.) Tilden'sAm. Alg., No. 346. Blade broadly linear in outline, tapering below to the transition point, 7-12 dm. and more long, 12-25 ^•''^- wide, thin and soft, stri- ate and " lung like," wrinkled or somewhat regularly pleated near the midrib giving it a buUate appearance which disappears near the base of the blade; midrib broad (3-7 cm.) and flat, 2 mm. thick, narrow above and below; stipe dark brown, drying black (3-7 dm.), firm and solid, round below, much flattened above and gradually pass- ing into the midrib ; sorus single, covering the upper part of the midrib. Yakutat Bay (236) ; Puget Sound (450). On June 26, 1S99, °^ ^^ island opposite the entrance to Yakutat Bay the writer collected a few fragments of a plant washed up with severa 1 SjU. Alg. 3: 322. 428 SAUNDERS species of kelp that he at once took to represent a new genus. The locality was visited for three successive mornings during the lowest tides and although an abundance of material was washed ashore the plant was not found in situ. Several other points in the bay were visited but no sign of the plant was found. If it grows off the shore on which it was collected, and the condition of the material collected would indicate that it does, it must grow wxll down in the elittoral zone, for twice a careful search was made along the whole shore line at the lowest tide, where one could get out beyond the " kelp line." The location in which the plant was collected and the frayed and torn condition of the ends of the blade would indicate that it grows in ex- posed localities. In all specimens collected the stipe was broken off apparently just above the holdfast. The only holdfast seen was on an almost perfect specimen (from which Plate Lii was drawn) collected by Miss J. E. Tilden in Puget Sound. Pleurophycus has no midrib in a proper sense, but has a broad shal" low furrow indented on one surface and prominent on the other, the surface of which is little thicker than that of the adjacent portion of blade, except in the region of the sorus. This plant was first collected by Mr. N. L. Gardner in Puget Sound in the summer of 1898 and sent to Dr. Setchell for identification. Dr. Setchell recognized it at once as a new genus and gave it the above manuscript name. The writer not knowing of Dr. Setchell's name gave his specimen a provisional name, but on learning from Mr. Gard- ner of a previous name offered his specimens for comparison to Dr. Setchell, who at once suggested the joint authorship of the name. Referring to the distribution of the plant Dr. Setchell writes " while Pleurophycus may grow in the elittoral zone, all the evidence in Gardner's and my possession shows that it extends even to the upper sublittoral, as is the case with so many species credited to the elittoral, Gardner found them just below low waiter mark, but in places much exposed to the fury of the waves. Several of Gardner's specimens have holdfasts which show several whorls of hapteres branched in a somewhat irregularly dichotomous fashion and several times, the distal branches being slender. Pleurophycus stands as the simplest of the subtribe Agarece., forming something of a transition between that subtribe and the Laminariece. Laminaria buUata Kjellman. In the sublittoral zone. Puget Sound ; Sitka (188) ; Prince William Sound. All specimens collected were quite young and sterile but agree with Kjellman's figures and descriptions. THE ALG^ 429 Laminaria bongardiana P. & R. Abundant in the sublittoral zone, from Sitka to Shumagin Islands. Sitka (186) ; Prince William Sound; Kukak Bay (337). Laminaria solidungula J. Ag. Occasional in the sublittoral zone from Yakutat Bay northward and westward. Yakutat Bay (260) ; Kukak Bay (337) ; Popof Island (387:^)- All specimens collected were sterile and of small size; the blade averages 6 dm. long, 3 dm. broad; the stipe is about 17 cm. broad, firm, thick and abundantly supplied with mucous canals as are the broad flattened rhizoids which are fused almost to the tips to form a disk- like attachment. Laminaria cuneifolia J. Ag. Two specimens of this species were collected from a small rock on Popof Island (387). The rock had apparently been washed up from the sublittoral zone. The blade is very distinctly wedge-shaped, thin, papyraceous, light olive-green, and very brittle in drying, quite regu- larly wavy on the margin ; the stipe is black, very firm, rounded be- low and slightly flattened above, 6-10 cm., the rhizoids are long and slender, resembling those of L. saccharina. Laminaria saccharina (L.) Lam. Abundant in the sublittoral zone from Puget Sound to the Shumagin Islands. Two forms were collected. Forma (a). Blade 300-800 cm. long, cuneate at base, 20-40 cm. wide; stipe 3-5 cm. long, texture thin, papyraceous or membranace- ous, drying light-green; sori usually small, 1-3 dm., irregular, con- fined to the upper part of the frond ; muciferous canals small, abun- dant in blade and stipe. Glacier Bay (77); Sitka; Wrangell (63); Yakutat Bay; Cook Inlet ; Shumagin Islands. jForma (3). Blade 50-150 cm. long, 5-10 cm. wide; stipe 1-3 cm. long, submembranaceous to coriaceous ; sorus occurring as a band in the central part of the blade, extending from a few centimeters to two- thirds the length of the blade ; muciferous canals abundant in blade. Prince William Sound (259^ ) ; Kukak Bay (337). Hedophyllum sessile (Ag.) Setchell. — (Plate li.) Laminaria sessilis Kg., Syst. Alg., p. 270. Tilden, Am. Alg., 344. This species was collected in the sublittoral zone in Yakutat Bay the latter part of July. 430 SAUNDERS The young plants have a short distinct flat stipe i-3 cm. long and 5 or more mm. broad, the stipe soon disappears or becomes attached to the substratum by its whole length, the old blades are a foot or two in length, irregularly longitudinally torn above, bullate and folded in the lower part. Hedophyllum subsessile (Aresch.) Setchell (Mss.). Laminaria bongardiana subsessilis Aresch., Obs. Phyc. 4 : 5. Abundant in exposed places, from Puget Sound northward. Yaku- tat Bay (218); Prince William Sound (259); Kukak Bay (337>^). This plant, heretofore considered a form of L. bongai-diatia^ is made the type of a new genus by Dr. Setchell, on account of the prostrate Ihizome. The creeping rhizome-like affair is apparent only in old, well developed plants. The stalk is always short, 1-4 or 5 cm., and in ma- ture plants much flattened above, in old specimens being as much as 2 cm. or more wide. The blade is dark brown, thick and leathery, reaching a length of 3 or more meters. It is usually split nearly to the base into 3 somewhat equal parts each one of which is more or less irregularly cut and torn. Cymathere triplicata (Post & Rupr.) J. Ag. Abundant from Puget Sound to Shumagin Islands. This species is gregarious and usually found pretty well down in the sublittoral zone or in the upper part of the elittoral zone. While not of extreme size this plant forms a large part of the kelp flora in many places. Agarum gmelini Mert. (Plate lxi.) In the sublittoral and elittoral zones in exposed localities. This spe- cies and Des7narestia aczileata form the majority of the elittoral flora in many places. Prince William Sound ; Yakutat Bay ; Kukak Bay ; Popof Island. In mature specimens the outline is rotund or reniform and the mid- rib broad and flat. Three specimens from different localities gave the following meas- urements. Blade. Stipe. Midrib. Length. Width. Length. Width. Width. cm. 60 60 60 cm. 80 60 60 cm. 17 wanting mm. 10 ID mm. 12 12 THE ALG^E 43 1 Agarum turneri (Post & Rupr.). Abundant in the sublittoral zone. Yakutat Bay (200(7) ; Prince William Sound (261) ; Popof Island. This species differs from the last chiefly in its smaller size, more ovate outline, and the much narrower midrib. Its relationship would probably be better expressed by placing it as a variety rather than a distinct species. Costaria turneri Grev. Abundant in the sublittoral zone from Puget Sound to the Shumagin Islands. Victoria; Sitka (187) ; Yakutat Bay ; Prince William Sound; Kukak Bay ; Shumagin Islands. The plant reaches a much larger size on the Alaska coast than on the California and Washington coast. Specimens were seen measuring from 180 to 220 cm. in length and 50 cm. wide at the base. Eisenia arborea Aresch. A broken fragment of this plant w^as obtained at Wrangell and several specimens were obtained in Puget Sound. Macrocystis pyrifera (Turn.) Ag. (Plate lx.) In the elittoral zone off rocky points and in unprotected places. Wrangell; Sitka (171, 189) ; Juneau. Although a constant watch was kept for this plant it was not seen north of Sitka. Nereocystis priapus (Gmelin) Saunders. (Plates lviii, lix.) • Ulva priapus (^WE.iAV., Hist. Fucorum, 231, 1768. Nereocystis lutkeanusyiKKT. fil. in Linnaea, p. 48, 1829. Abundant from Puget Sovmd to the Shumagin Islands. The plant is seldom found growing in protected places, being confined to the elit- toral zone at the mouth of bays and in the open ocean from a few yards to a mile or more from shore. The plant, unlike Macrocystis pyrifera and Alaria jisttilosa^ does not form floating masses. Mature plants measure from 50-70 feet long, about two-thirds of which is the long tube-like stipe with its terminal air bulb, which floats the dichotomously torn lamina on the surface of the ocean. Mertens' statement, copied by Harvey, in which in speaking of the stipes, he says : " They are said to be 45 fathoms long," is probably not true. The writer has measured many fully-developed plants on the California, Oregon, and Washington coasts as well as on the Alaska coast and has never yet found one exceeding the above figures. Gmelin's figures and description of Ulva priapus leave no doubt as to the identity of his plant although he had only an imperfect stipe. 432 SAUNDERS As his description antedates Martens' by some sixty years it seems best to the writer to reinstate the name given by him. Family FUCACE^^. Fucus evanescens fortna macrocephala KjeUm. (Plate lxii, fig. i.) Puget Sound ; Annette Island ; Wrangell ; Juneau ; Sitka ; Glacier Bay ; Prince William Sound ; Cook Inlet ; Kukak Bay ; Shumagin Islands. This is by far the most abundant seaweed on the northwest coast. It is found in all quiet bays and protected places from Puget Sound to Bering Sea, forming the characteristic light brown covering extending some distance above the average tide level. In many places the plant is not covered by salt water more than twice a month. It is able to thrive from the moisture in the atmosphere. This species and Pylaiella littoralls extend the farthest up the mouths of streams and fresh water bays. This form is more commonly evesiculose, but there are often found indefinite vesicles just below the fruiting tip, either singly or in pairs. It is a variation of this form from Puget Sound that Dr. Setchell has referred to F. flaty carpus^ which is quite a distinct species. Identified by Kjellman. Fucus evanescens y"(9r/«a cornuta Kjellm. (Plate lxii, fig. 2.) Juneau; Yakutat Bay (256); Prince William Sound (264a); Kukak Bay (376) ; Popof Island. This form was collected in more exposed places than the last and is not nearly as common. The plant is darker colored and firmer in texture than the last, with narrower branches and fruiting tip. The fruiting tip is usually not at all inflated but in one extreme variation it is inflated 5-7 cm. long. Cystophyllum lepidum (Rupr.) Harvy. Victoria; Wrangell; Sitka (121, 190) ; Yakutat Bay; Kukak Bay; Shumagin Islands. In slightly protected places in the elittoral zone from Puget Sound to Bering Sea. Mature plants measured from i to 3 meters in length. RHODOPHYCEiE. Family BANGIA CE^E. Bangia atropurpurea pacifica J. Ag. Specimens of this species were collected near Victoria in Puget Sound but it was not obtained in Alaskan waters. THE ALG^ 433 Porphyra laciniata (Lightf.) Ag.^ On the stems of Fiiciis and on rocks in the littoral and sublittoral zone, Yakutat Bay. All specimens obtained were sterile. Porphyra perforata J. Ag. On rocks in the littoral and sublittoral zones, Glacier Bay (lOo); Sitka (130) ; Shumagin Islands (394)- The most abundant species. Porphyra amplissima (Kjellm.) Setchell & Hus. On rocks in the sublittoral zone, Prince William Sound. This large and beautiful species was found growing in great abundance at this station but was not collected again. Porphyra miniata forma cuneiformis Setchell & Hus. Usually found floating, occasionally attached to stems of Nereo- cystis and other algae ; Lowe Inlet (20). Porphyra tenuissima (Stroemf .) Setchell & Hus. Abundant on rocks and also epiphytic on algte. Sitka (148a, 137) ; Yakutat Bay (214). Not previously reported from the west coast of North America. Family HELMINTHOCLADIACE^^. Batrachospermum vagum flagelliforme Siridot. In ponds, pools and streams near Virgin Bay, Prince William Sound (299) ; Cook Inlet (423) ; Kadiak Island. Plants collected in June and July at or near sea level bore an abund- ance of mature carpospores. Family GELlDIACEyE. Choreocolax polysiphoniae Reinsch. On the stems of Polysiphonia sp., Sitka (123a). Plants collected in June bore only tetraspores. The 'plants are closely attached to the lower part of the main stem of the Polysi- phonia^ spherical, dark brown or black, about J^ mm. in diameter. The tubes of the Polysiphonia are much deformed wherever the "parasite" is attached. The central tube is much enlarged, the sur- rounding ones somewhat so, the walls considerably contorted and thickened. This species has been found in the Atlantic on the Euro- pean and American shores but has not been previously reported from the Pacific ocean. 1 All specimens of the genus Porphyra were identified by Dr. Setchell and Mr. Hus. 434 SAUNDERS Family GIGARTINACEyS. Endocladia muricata (P. & R.) J- Ag. On perpendicular rocks in exposed places at or above the high tide line. Wrangell (62) ; Prince William Sound (293) ; Popof Island '370). This species, so common on the California coast, is compara- tively rare or local on the Alaskan coast. Iridaea membranacea J. Ag. ? On rocks in the sublittoral zone. Sitka (125); Yakutat Bay (207) ; Shumagin Islands (377). This is the plant distributed from Puget Sound by J. E. Tilden as Iridcca heterocarpa (Am. Algae, No. 329). The plant is abundant and evidently ranges from Puget Sound to Bering Sea. To this species Dr. Farlow has ver}' questionably referred a plant with small, once to twice dichotomously divided plant body. It is broadly obovate or reniform in outline, tapering below to a short stalk, entire or crenate on the margin or in the sterile plants with few or many tooth-like proliferations. Dr. Farlow says "This plant has made the tour of European algologists * * * Bornet is sure that it is a form of Iridcea laminarioi'des. It also agrees with some of Bory's specimens of that species. I must admit that having seen a series of the two species in foreign herbaria, I found that I could not tell where one began and the other ended." The plant is smallei' than any of the specimens of Iridcea lamhtari- oides seen by the writer, ranging from 5 to 10 cm. in length and the primary division of the plant being 2-10 cm. broad. It is also some- what thinner in texture, dark red in color, and lighter on the margins. The cystocarps are small and evenly distributed over the entire surface of the blade except the basal part. Iridaea laminarioides Bory. This plant is abundant in the sublittoral zone in Puget Sound but was not seen in Alaskan waters. Gigartina papillata Ag. forma typica. Washed ashore, Shumagin Islands (357). A few small plants 5-8 cm. in length, were collected that are iden- tical with the forma stibsimplex of Setchell (Phycotheca Boreali- Americana, No. 425). Dr. Farlow states that they are identical with typical G. papillata given him by Agardh. Dr. Setchell in a note on the distributed form says : " Under this name is included the form figured by C. Agardh as the type." THE ALG^ 435 Gigartina papillata forma cristata Setchell. A single plant of this variety was collected in Kukak Bay (331a) which is apparently identical with Dr. Setchell's cristata. It is also very closely related to some forms of G. niamillosa. Gigartina pacifica Kjellm. On rocks in the sublittoral zone. Yakutat Bay (200) ; Prince William Sound (30S) ; Shumagin Islands (358, 377). No. 377 agrees exactly with Kjellman's figures and descriptions, the others are somewhat intermediate between G. pacifica and G. papil- lata. Kalymenia calif ornica Farlow. In tide washings, Kukak Bay (342). The plant collected in Kukak Bay is much smaller in all of its parts than specimens from the California coast. The proliferations are very numerous, obovate, and only 2-5 cm. long by 1-2 cm. wide. Ahnfeldtia plicata (Hudson) Fries. On rocks in the sublittoral zone, Yakutat Bay (350) ; Prince Wil- liam Sound (270). The specimens collected at both stations were sterile and had fewer and shorter branches than the typical forms but agree in structure. Family RHODOPHTLLIDACE^^. Turnerella mertensiana (P. & Rupr.) Schmitz. Washed ashore in exposed places. Kukak Bay (352) ; Shumagin Islands (453). The plant is oblong or ovate, fastened to rocks by a basal disk, entire or lobed on the margin, coriaceous, and of a deep dark blood-red color ; several specimens were obtained 6 dec. long by 3 dec. wide. This species was seen at only three stations in Alaska, a large spec- imen was seen in the herbarium of Mr. N. L. Gardner, collected in Puget Sound. There is also a small sterile specimen in the writer's herbarium, from the central Californian coast, Monterey Bay. Euthora cristata (L.) J. Ag. Abundant in the sublittoral zone. Seldovia, near the entrance to Cook Inlet (415) ; Shumagin Islands (356). One of the most abundant of the red algae. It is also reported from Puget Sound. 436 SAUNDERS Family RHODTMENIACE^^. Rhodymenia pertusa (P. & Rupr.) J. Ag. On rocks in the lower part of the sublittoral zone, Yakutat Bay (205) ; Prince William Sound (267 and 271). No. 271 is a smaller form and not at all pertuse. Rhodymenia palmata (L.) J. Ag. On rocks in the upper part of the sublittoral zone. Glacier Bay (88) ; Yakutat Bay (206) ; Prince William Sound, near Orca (310) ; Kukak Bay (345) ; Popof Island (378). The entire form of this species seems to be the more common on the Pacific Coast, though the palmately divided form and the form with numerous proliferations are also abundant. The plant is gathered in large quantities, dried and eaten by the In- dians of the northwest coast, as is Porphyra pertusa by the China- men on the California coast. Plocamium coccineum uncinatum J. Ag. In the sublittoral zone, Sitka (148). Halosaccion firmum (P. & R.) J. Ag. In the sublittoral zone in a quiet muddy cove. Cook Inlet (414). This species was collected at only the one station, but it was abundant there. Halosaccion fucicola (Post & Rupr.) J. Ag. On rocks, Rhodo77iela larix, and other algae in the littoral zone from Puget Sound to Bering Sea. Victoria (5) ; Annette Island (33) ; Sitka (145a) ; Prince William Sound; Popof Island. Halosaccion ramentaceum (L.) J. Ag. In the sublittoral and littoral zones. Kukak Bay (331, 317) ; Cook Inlet (414). Nos. 317 and 414 agree with the typical form of this variable spe- cies. No. 331 is very close to the forma densa of Kjellm. It was found well up in the littoral zone while the other forms are sublittoral. At each station this species was collected only once. Halosaccion tilesii (Ag.) Kjellm. In the littoral zone from Wrangell to Bering Sea, Wrangell (54) ; Yakutat Bay (235, 248, 249) ; Prince William Sound (306a ); Ku- kak Bay (453). Halosaccion microsporum Rupr. In the littoral zone. Glacier Bay (85, 109); Yakutat Bay (452). THE ALG^E 437 The three numbers, referred to this species somewhat tentatively, represent three very variable and diverse forms w^hich however agree in structure. Family DELESSERIACEy^. Nitophyllum ruthenicum (Post& Rupr.) Kjellm.' A single sterile specimen of this plant was collected in the sublit- toral zone at Sitka (119). The plant is 15 cm. high bearing many cuneate branches which are delicately longitudinally striate, especially near the base. It is quite distinct from any of the Californian species of Nitophyllum^ but is re- lated to A^. latissimum. The nerves are much more delicate and not branched and disappearing above the middle of the lobes ; in this re- spect it is intermediate between A^. latissimum and N. fryeanum. Delesseria baerii (Post & Rupr.) J. Ag. Two small sterile plants of this species were collected in the sublit- toral zone near Sitka (183). Delesseria alata (Huds.) J. Ag. A few sterile plants of this species were collected in Puget Sound at Victoria (3). It was not seen in Alaskan waters. Delesseria sinuosa (Good. & Wood.) Lamon. Abundant in the sublittoral zone. Sitka (151); Prince William Sound (265) ; Kukak Bay (344, 323) ; Shumagin Islands (371, 389). A very variable species, some of the forms resembling D. querci- folia but with a more distinct midrib and opposite nerves. Speci- mens from Kukak Bay bore an abundance of cystocarps. The species occurs in the Arctic and North Atlantic oceans and has re- cently been reported by Kjellman from Bering Sea. From Sitka to the Shumagin Islands it is the most common Delesseria. Delesseria crassifolia Rupr. A specimen of this plant was collected by Prof. Trevor Kincaid in 1898 on the shores of St. Paul Island, It was not collected by the Harriman Expedition in Bering Sea. Delesseria decipiens J. Ag. In the sublittoral zone, Prince William Sound (290). An abundance of cystocarpic material was collected. The plants are much smaller (only 8-15 cm. in length) than those from the Cali- fornia coast, but agree in other respects. > Kjellman, Om Behringshaf. Algfl., 25. 438 SAUNDERS Delesseria serrata Post & Rupr, To this species is referred a plant with the general appearance of a broad form of D. alata, but the branches are more distant and fewer and the margins of the upper and younger branches are regularly or irregularly serrate. It may be an extreme form of D. alata but it seems best to keep it under a separate name until this is proven. Family RHODOMELACE^^. Rhodomela floccosa Ag. In the littoral and sublittoral zones from Puget Sound to Bering Sea. Annette Island (30, 56) ; Wrangell (68) ; Sitka (139) ; Yakutat Bay (191* 203) ; Kukak Bay (321) ; Popof Island (374). One of the most abundant plants. It occurs also on the Washing- ton, Oregon, and California coasts. Rhodomela larix Ag. Attached to rocks in the upper sublittoral and littoral zones ; abun- dant from Puget Sound to the Shumagin Islands. Sitka (131) ; Ku- kak Bay (31S). Odonthalia aleutica (Mertens) J. Ag. Attached to rocks in the sublittoral zone, Shumagin Islands (385). The same species has been collected in Puget Sound by the writer. The branches are narrower than in O. dentata^ the perithecia are ra- cemed and very slightly oblong-urceolate, and the plant turns black in drying. Odonthalia kamtschatica (Rupr.) J. Ag. On rocks in the sublittoral zone. Kukak Bay (341) ; Yakutat Bay (219). In this species the plant is smaller than the last species and remains a dark blood-red color in drying : the perithecia are short, racemed and very strongly urceolate. Polysiphonia arctica J. Ag. In the sublittoral zone, Shumagin Islands (364, 366). Polysiphonia bipinnata Post & Rupr. Abundant on rocks and on other algae in the sublittoral zone, from Puget Sound northward. Annette Island (19); Glacier Bay (84); Sitka (117) ; Yakutat Bay (244). Several specimens of Polysiphonia are undeterminable and for the present can be noted only by numbers as follows; 25,64, 123, 150, 154, 212, 363. THE ALG^ 439 Family CERAMIA CE^S. Calithamnion floccosum pacificum Harv. On Nereocystis friapus and other algs, and on rocks. Puget Sound; Lowe Inlet (15) ; Yakutat Bay (210, 244, 199). The most abundant species of Caliihamnion on the Northwest coast. Calithamnion plumula Lyngb. This species was collected several times in Puget Sound but was not seen in Alaska waters. It is a comparatively common plant in Puget Sound, while on the central California coast it is very rarely found. ,• Ceratothamnion pekeanum (Harv.) J. Ag. On rocks in exposed localities in the littoral and upper sublittoral zones. Sitka (152) ; Yakutat Bay (211) ; Shumagin Islands (373). The northern plant is smaller and with shorter branches than the same species from the California coast. Ptilota asplenoides Ag. Abundant on rocks in the sublittoral zone. Yakutat Bay (198, 219) ; Prince William Sound (269). Ptilota plumosa Ag. Attached to rocks and large algae in the sublittoral zone. Sitka (140); Shumagin Islands (397). A much finer and more delicately branched plant than the last, with opposite similar branches. Ptilota serrata Kuetz. In the sublittoral zone. Shumagin Islands (355). Antithamnion boreale (Gobi) Kjellm. Occasional in the sublittoral region. Wrangell (55) ; Sitka (135). In its general appearance the plant agrees withyl. boreale corallina but the branches near the apex are not elongated as in that form. Ceramium rubrum Ag. In the sublittoral zone. Sitka (127) ; Prince William Sound (275) . The Prince William Sound material, collected in June, bears an abundance of mature carpospores. Ceramium codicola J. Ag. Attached to Codium niucronatum calif ornicum^ Sitka (170). The plants are small and sterile, but agree with specimens of C. codicola collected by the writer on the California coast, and with speci- mens distributed in the Phycotheca Boreali- Americana. Proc. Wash. Acad. Sci., November, 1901. 440 SAUNDERS Microcladia borealis Rupr. In the littoral zone, attached to rocks in exposed places, Paget Sound (4). The plant \vas not collected in Alaskan waters. Rhodochorton rothii (Turton) Naegeli. Forming a dense coating on rocks, especially in caverns in the upper sublittoral or littoral zones. Prince William Sound (292). The writer has collected this plant also on the central California coast and in Puget Sound. Family GLOIOSIPHONIACEy^. Gloiopeltis furcata (P. & R.) J. Ag. Attached to rocks in the sublittoral zone from Puget Sound to the Shumagin Islands. Annette Island (26) ; Sitka (124) ; Vakutat Bay (201) ; Shumagin Islands (372). Not common at any of the stations. Gloiosiphonia calif ornica (Farl.) J. Ag. In the sublittoral region in a protected cove, Prince William Sound (277)- This species was originally described by Dr. Farlow from the cen- tral California coast. He placed it somewhat questionably in the genus Nemasto77ia on account of having only dry material for examination. J. Agardh, in Till Algernes Systematik, transferred the species to Gloiosiphonia. Dr. Farlow recently stated that since the publication of the species he had examined both living and alcoholic material and believed that Agardh was right in placing it in Gloiosiphonia. Family GRA TL O UPIA CE^E. Cryptonemia obovata ? J. Ag. Washed ashore, Prince William Sound (276). Two sterile specimens of a Cryptonemia are referred somewhat questionably to this species. They agree in shape and structure with fruiting specimens collected in Puget Sound which undoubtedly be- long to this species. Family D UMONTIA CE^^. Dumontia filiformis (Lyngb.) Ag. Abundant in the sublittoral zone in protected places from Prince William Sound northward and westward. Prince William Sound (307, 280); Cook Inlet (411); Kukak Bay (340); Shumagin Islands (365). THE ALG^ 441 The specimens fi'om Cook Inlet bear an abundance of cystocarps ; the others have tetraspores. Cryptosiphonia grayana J. Ag. In the sublittoral zone. Wrangell (162); Sitka (132); Yakutat Bay (208) ; Kukak Bay (330). The Yakutat and Kvikak Bay specimens bear cystocarps, the Sitka and Wrangell material tetraspores. Dilsea calif ornica (J. Ag.) Schmitz. In the sublittoral zone, Orca, Prince William Sound (313). The large sterile plants (3-5 dm. long by 1-2 dm. broad) were submitted to Dr. Setchell and were referred by him to this species. Dilsea arctica (Kjellm.) Attached to rocks in the sublittoral zone, Shumagin Islands (353). Young plants are broadly ovate or reniform, and of a light rose-red color, older specimens are once to twice longitudinally divided nearly to the base and of a light faded red color. Constantinea rosa-marina (Gmel.) J. Ag. In the upper part of the elittoral zone. Prince William Sound (298). It was observed at several other stations, including the Shumagin Islands, but no collections were made. It occurs in both protected and exposed situations, but seems to be more abundant in exposed locali- ties. Its occurrence in Puget Sound would indicate a general distri- bution from that locality to Bering Sea. Family S^ UAMARIA CE^^. Hildenbrandtia rosea Kuetz. Forming a very delicate rose-red crust on rocks in the littoral and sublittoral zones, from Puget Sound to the Shumagin Islands. The same species is reported by Kjellman from Bering Sea. The writer has also found it common on the central California coast. All specimens were sterile. Family CORALLINACE^^} Melobesia patens. On A??7phiroa epiphlegtnoides^ Prince William Sound (423a). Dr. Foslie is somewhat in doubt as to the species, labeling speci- mens submitted to him, " M. patens or n. sp." ' Specimens of all Corallinaceae enumerated were sent to Dr. Kjellman who requested Dr. Foslie to work them over. The determinations are entirely those of Dr. Foslie. 442 SAUNDERS Lithophyllum farlowii Foslie. On rocks in the littoral zone, Sitka (13S). • The young plants were somewhat doubtfully referred to the species by Dr. Foslie. Lithothamnion compactum Kjellm. Forming an indefinite coating on rocks in the sublittoral zone, Prince William Sound (431). Lithothamnion glaciale Kjellm. In the upper elittoral and lower sublittoral zones. Prince William Sound (430) ; Kukak Bay (427) ; Shumagin Islands (426). Abund- ant in exposed localities. Lithothamnion laeve (Stroemf.) Foslie. Abundant on rocks in exposed localities in the sublittoral zone, Kukak Bay (425a), with Clathromorphuni circumscriptum. Clathromorphum circumscriptum (Stroemf.) Foslie. On rocks in the sublittoral and elittoral zones. Kukak Bay (425) ; Sitka (441). Lepidomorphum yendori Foslie. On rocks in the sublittoral zone, Sitka (438). Amphiroa tuberculosa Rupr. On rocks in the lower sublittoral zone, Sitka (432). Amphiroa epiphlegmoides J. Ag. On rocks and other algae. Sitka (433) ; Prince William Sound (423) . Amphiroa planiuscula (Kuetz.) Foslie. ' On mussel shells, rocks, etc., in the lower sublittoral zone. Yakutat Bay (255) ; Prince William Sound (429). Corallina arbuscula Rupr. On rocks in the sublittoral zone. Shumagin Islands (438). Corallina pilulifera filiformis Rupr. On rocks in the sublittoral zone. Prince William Sound (435). BACILLARIACEiE.^ Melosira granulata C. G. E. In a freshwater pond, Popof Island, near Kukak Bay ; Kadiak Island ; Cook Inlet. ^ Determined bj Prof. A. M. Edwards. THE ALG^ 443 Melosira nummuloides B. de st. V. In salt water near Juneau ; Glacier Bay. Melosira sol C. G. E. Attached to seaweeds from Annette Island. Melosira sulcata C. G. E. Attached to seaweeds from Annette Island. Trochiscia moniliformis F. C. M. Attached to seaweeds from Annette Island ; Glacier Bay. Coscinodiscus argus C. G. E. In salt water material from Annette Island ; Yakutat Bay. Coscinodiscus lineatus C. G. E. In salt water from Glacier Bay. Thalassosira cleve H. H. G. In salt water from Glacier Bay. Triceratium wilkesii J. W. B. In salt water near Wrangell. Chaetoceros hispidum C. G. E. One specimen w^as found in material from Annette Island. Biddulphia aurita L. W. D. Attached to seaweeds from Annette Island ; Popof|Island. Isthmia obliquata J. E. S. In salt water from Yakutat Bay ; Victoria, British Columbia. Rhabdonema biquadratum J. B. Material from Annette Island. Rhabdonema fauriae P. P. Material from Annette Island. Rhabdonema japonica T. & B. Material from Annette Island. Rhabdonema elegans J. B. Material from Annette Island. Rhabdonema striatulum J. E. S. In salt water material from Annette Island ; Glacier Bay ; Popof Island ; Yakutat Bay. Rhabdonema arcuata F. T. K. In salt water, Yakutat Bay. 444 SAUNDERS Tabellaria flocculosa F. T. K. In a freshwater pond, Popof Island ; Kadiak Island ; Kukak Bay. Grammatophora marina (Lyngb.) Kuetz. In salt water from Yakutat Bay. Licmophora granulata V. In salt water from Glacier Bay. Licmophora cuneata F. C. L. Attached to seaweeds, Glacier Ba}'. Licmophora pennatula V. In salt water near Juneau ; Annette Island ; Yakutat Bay ; Wran- gell ; Popof Island. Meridion circulare C. A. A. In a freshwater pond, Popof Island. Diatoma hyemale H. C. L. In a freshwater pond, Popof Island. Diatoma pectinale O. F. M. In a freshwater pond, Popof Island. Fragilaria construens C. G. E. In a freshwater pond, Popof Island. Fragilaria virescens J. R. In a freshwater pond, Popof Island. Fragilaria striatula H. C. L. In material from salt water. Sitka ; near Juneau ; Popof Island. Fragilaria exilis A. G. In salt water, Yakutat Bay. Synedra crotonensis A. M. E. In a freshwater pond, Popof Island ; Cook Inlet. Synedra ulna C. L. N. In a freshwater pond, Popof Island ;]^Kadiak Island. Synedra prolongata A. S. In a fresh water pond, Cook Inlet. Synedra fasciculata C. A. A. Attached to seaweeds from Annette Island ; Glacier Bay ; Yakutat Bay. THE ALG^ 445 Eunotia robusta J. R. In a freshwater pond, Kadiak Island ; Cook Inlet ; Kukak Bay. Eunotia gracilis C. G. E. In a freshwater pond, Popof Island. Eunotia lunaris C. G. E. In a freshwater pond, Popof Island ; Kadiak Island. Cocconeis placentula C. G. E. In a freshwater pond, Kadiak Island. Cocconeis scutellum C. G. E. In salt water from Victoria, British Columbia ; attached to seaweeds from Annette Island ; freshwater pond, Kadiak j salt water, Yakutat Bay ; Juneau ; Popof Island. Achnanthes subsessilis C. G. E. In salt water from Glacier Bay. Achnantlies lanceolata A. B. In a freshwater pond, Popof Island ; near Kukak Bay. Achnanthes glabrata A. G. In salt water, Yakutat Bay. Cocconema lanceolatum C. G. E. Material from salt water, Annette Island ; in a freshwater pond, Popof Island ; Kadiak Island ; Cook Inlet. A freshwater species, the dead shells of which had been carried into the ocean by streams or glaciers. Navicula silicula C. G. E. In a freshwater pond, Popof Island. Navicula cyprinus C. G. E. In a freshwater pond, Popof Island. Navicula elliptica F. T. K. In a freshwater pond, Popof Island ; attached to seaweeds from Popof Island. Navicula major F. T. K. In a freshwater pond, Popof Island ; Annette Island ; Kukak Bay. Navicula radiosa F. T. K. In a freshwater pond, Popof Island. 446 SAUNDERS Navicula legumen C. G. E. In salt water material from Annette Island. A freshwater species, the dead shells of which had been carried into the ocean by streams or glaciers. Navicula pupula C. A. A. In salt water material from Annette Island. A freshwater species, the dead shells of which had been carried into the ocean by streams or glaciers. Navicula apis C. G. E. Material from Annette Island ; Popof Island. Vanheurckia rhomboides A. B. In a freshwater pond near Kukak Bay. Pleurosigma angulata W. S. In salt water, Yakutat Bay. Pleurosigma attenuata F. T. K. In a freshwater pond, Kadiak Island. Pleurosigma fasciola C. G. E. In salt water near Wrangell. Nitzschia diadema F. T. K. In salt water, Yakutat Ba3\ Nitzschia angularis W. S. In salt water, Yakutat Bay. Nitzschia closterium C. G. E. In salt water material, Annette Island. Nitzschia sigmoidea C. L. N. In salt water material from Annette Island. A freshwater species, the dead shells of which had been carried into the ocean by streams or glaciers. Nitzschia vermicularis F. T. K. In a freshwater pond, Popof Island. Surirella elegans C. G. E. In a freshwater pond, Popof Island. Staureoneis phcenicenteron C. L. N. Material from Annette Island; freshwater pond, Kadiak Island; Kukak Bay. A freshwater species, the dead shells of which had been carried into the ocean by streams or glaciers. THE ALG^. 447 Amphora ovalis C. G. E. In salt water from Glacier Bay. Amphora elliptica C. A. A. In salt water, Yakutat Bay. Gomphonema geminatum C. G. E. In a freshwater pond, Kadiak Island. Gomphonema affine F. T. K. In a freshwater pond, Kadiak Island. Gomphonema subtile C. G. E. In a freshwater pond, Popof Island. Rhoicosphenia curvata F. T. K. In salt water material from Annette Island ; Yakutat Bay ; Popof Island. Cymbella inaequalis C. G. E. From salt "water material from Annette Island. A freshwater species, the dead shells of which had been carried into the ocean by streams or glaciers. Cymbella ehrenbergii F. T. K. In a freshwater pond, Popof Island ; Kadiak Island. Epithemia gibba C. G. E. In a freshwater pond, Popof Island ; Kadiak Island. Epithemia jurgensii C. A. A. In a freshwater pond, Popof Island; Cook Inlet; Annette Island. Epithemia westermannii C. G. E. In a freshwater pond, Popof Island. PLATE XLIII.^ Fig. I. Cosmarium conspersum Ralfs. 2. " ccelatum Ralfs. 3. " ornatum Ralfs. 4. Euastriim crassum (Bieb.) Kuetz. 5. Cosmarium fseudotaxichondricm Nordst. 6. " parvulnm Breb. 7- " hammeri Reinsch. 8. " fi'ranatuvt Br^b. 9. Euastrum verrticosum Ehrenb. 10. Cosmarium ochtodes Nordst. 11. " (5t>//-_y//5 Menegh. 12. " portianum nephroideum Wittr. Front view. 13. " " " " End view. 14. Closterium parvulum Naeg. 15. " venus Kuetz. 16. Staurastrum echinatum Pec ten (Perty) Rab. 17. Cosmarium dcpressum (Naeg.) Lund. 18. " pulckerrimum Nordst. 19. " " " From Kukak Bay. 20. " subcrcnatum Ilantzsch. 21. " pseudogranatum Nordst. 22. " quadrifarium Lund. 23. Staurastrujn polytnorphutn Breb. End view. 24. " " " Front view. 25. Micrasterias rotata (Grev.) Ralfs. 26. Cosmarium broomei \iir. Thwaites. 27. Closterium acerosum (Schrank), Ehrenb. 28. Cosmarium bioculatum Breb. 29. MesotiV)iium braunii De Bary. 30. Disphinctium connatum (Breb.) De Bary. 31. Staurastrum calyxoides Wolle. 32. Euastrum affine Ralfs. 33. Cosmarium constrictum Delp. Side view. 34. " " " Front view. 35. " (^roo;;??/ Thwaites, End view. 36. " " " Front view. 37. Euastrum oblongum (Grev.) Ralfs. 38. Xanthidium antilop(eu7n (Breb.) Kuetz. 39. Cosmarium sexangulare Lund. 40. " pyramidatum Breb. ' Plates xliii-lxii are from drawings by Eva M. Saunders, except for plates xlvi, figs. I and 2, which were drawn by Edna L. Hyatt. (448) Proc. Wash. Acad. Sci. Vol. 111. Plate XLIII. HBJOTYPE PRINTING OOi ALASKA ALGAE. PLATE XLIV. Fig. I. Cosmayium intermedium Delp. 2. Euastrum elegans (Breb.) Kuetz. 3. Penium digitus (Ehrenb.) Breb. 4. Cosmarium latum Breb. 5. Staurastrum dejcctum Br^b. a, b and r. 6. Cosmarium sphalerostichum Nordst. 7. Micrastcrias truncata (Corda) Ralfs. 8. Cosmarium phaseolus Breb. 9. Cosmarium undulatum Corda. 11. Micrastcrias denticulata (Brdb.) Ralfs. 12. Cosmarium ftachydcrmum Lund. 13. Tetmcmorus brebissonii {^lenegh.) Ralfs. 14. Arthrodesmus cotivergeiis Ehrenb. 15. Cosmariu77i blyttii Wille. 16. Cos7narium contractum Kirch. 17. " kitcheliiW oWe. 18. Xanthidium armatum (Breb.) Ralfs. 19. Cosmarium inetiegkinii brautiii {'R.e'wxsch.) Ilansg. 20. Pleurotictiiopsis debaryi (Archer) Lund. 21. Cosmarium tumidum Lund. 22. " A-rt//5/V Brdb. 23. Micrasterias kitcheliiV\'o\\c. 24. Euastrutn didelta (Turp.) Ralfs. 25. " e/e^a«5 (Breb.) Kuetz. 26. " " '■ Two forms. 27. Micrasterias oscitans j)innatijida {Y^ueiz.^ Rabenh. 28. Cosmarium holmiense Lund. 29. Staurastrum ravenelii 'Wood, a, front view : ^, end view. 30. Euastrum elegatts, large form. 31. Micrasterias Jimbriata elephanta Wolle. (450) Proc. Wash. Acad. Sci. Vol. III. Plate XLIV HEUOTTPE PRINTIMG 00. ALASKA ALGAE. PLATE XLV. Fig. I. a and b. S/reblonema pacijica sp. nov. 2. Streblonema irregularis sp. nov. 3- " minutissima sp. nov. (452) Proc. Wash. Acad. Sci. Vol. 111. Plate XLV. HEUOTYPE PRiraiNG (H ALASKA ALGAE. PLATE XL VI. Fig. I. Myrioticma scrangulans Grc\.] tufts natural size. -• ■' " " section (X 400). 3. Homeostroma tuidulatum J. Ag. 4. Dermocarpa fucicola %-^. ViO\.\ section (X 400). 5- " " " natural size. 6«. Homeostroma lobatum sp. nov. ; natural size. ^*^- " " " portion of edge (X 30). 6<^- " " " section (X 400). (454) Proc. Wash. Acad. Sci. Vol. III. Plate: XLVI. HFilOTYPE PRINTING 00. ALASKA ALGAE. Proc. Wash. Acad. Sci., Nov., 1901. PLATE XLVII. Fig. I. Myelophycus intestinalis sp. nov. ; natural size. 2. '• " " cross section (X 400). 3. " " " longitudinal section (X 400)- (456) Proc. Wash. Acad. Sci. Vol. III. Plate XLVII HEUOTYPE PRrKTIKG CD. ALASKA ALGAE. PLATE XL VIII. Fig. I. Coilodesme linearis sp. nov. : natural size. 2. " " " cross section (X 400)- (4.SS) Proc. Wash. Acad. Sci. Vol. III. Plate XLVIII. HBJOTYPE PRINTING CD. ALASKA ALGAE. PLATE XLIX. Fig. I. Liebmannia ?; natural size. 2. " peripheral filaments (X 400)- (460) Proc. Wash. Acad. Sci. Vol. Ill Plate XLIX. MEUOTYPE PRIKTING Oa ALASKA ALGAE. PLATE L. Fig. I. Laminaria cu7ieifolia J. Ag. 2. Mesogloia simplex sp. no v. 3. " " section (X 100). 4. •' " (X400)- (462) Proc. Wash. Acad. Sci. Vol. 111. Plate L. HEUOTYPE PRIKTIHG Oa ALASKA ALGAE. PLATE LI. HedopJiyllum sesst'le (Ag.) Setchell. (464) Proc. Wash. Acad. Sci. Vol. 111. Plate li. HtLiOrrPE "KiMiro to. ALASV.A ALGAE. PLATE LII. Fig. I. Pleurophycus gardiieri %' iiwy "n ALASKA ALGAE. MEUOTYPE PRUOIHS OX Proc. Wash. Acad. Sci., Nov., 1901. PLATE LV Alaria laticosta Kjellman. :472 Proc. Wash. Acad. Sci. Vol. 111. P'-ATE LV. HEUOTYPE PRINTIHG 00. ALASKA ALGAE. PLATE LVl. Alatia cor data Tilden. (^74 Proc. Wash. Acad. Sci. Vol. 111. Plate lvi. MEl-10'nPEP'ilN'l1&' ALASKA ALGAE. PLATE LVII. Fig. I. Alaria fistulosa Post & Riipr. ; % natural size. 2. " " " " section of midrib : natural size. 3,4. •' " " " portions of the midrib (X 80). (476) Proc. Wash. Acad. Sci. Vol. III. Plate lvii. HELIOtTPr OSINTIN& CO. ALASKA ALGAE. PLATE LVIIL Fig. I. IVereocys/ts pr/a/>us (Gmel.) Saunders ; much reduced. 2. " " " section of blade showing fruit. 3. '• " " longitudinal section ^^houing mucous canals • (X40)- 4. Nereocystis friapus (Gmel.) Saunders (X4o)' 5. " " " cross section of stipe showing mucous canals and secreting cells. (478) Proc. Wash. Acad. Sci. Vol III Plate LVlll. HEUOTYPE PRINTING CD. ALASKA ALGAE. PLATE LIX. Figs. i-8. Nereocystis priapus, j-oung plants in various stages of development. 9. " " An abnormal plant. (480) Proc. Wash. Acad. Sci. Vol. 111. Plate LIX. MEUOTTPE miNTIKS 00. ALASKA ALGAE. PLATE r.X. P'iG. I. Afacrocystis pyrifera (Tv\vr\Qr) i\g. f482) Proc. Wash. Acad. Sci. Vol. III. Plate LX. HEUOTYPE PRINTIKG OX ALASKA ALGAE. PLATE LXL Agarum gmeliin Mert. (484) Proc. Wash. Acad. Sci. Vol. III. Plate LXI, HEUOTYPE PRItaiNG (XX ALASKA ALGAE. PLATE LXII. Fic;. I. Fiicus evartescens Ag. ; forma macrocephala Kjellm. 2. " " forma cornuta Kjellm. (486; Proc. Wash. Acad. Sci. Vol. III. PL.ATE LXII. HQJOTYPE PRINTING 00. ALASKA ALGAE. PROCEEDINQS WASHINGTON ACADEMY OF SCIENCES Vol. Ill, pp. 487-506. November 7, 1901, PAPERS FROM THE HOPKINS STANFORD GALA- PAGOS EXPEDITION, 1898-1899. IV. ENTOMOLOGICAL RESULTS (4): ORTHOPTERA. [Text Figures 35-44.] By Jerome McNeill. CONTENTS : Introduction 487 Technical descriptions. Forficulidse 492 Blattidae 493 Mantidae 494 Acrididse 495 Locustidae 496 Grillidae 502 INTRODUCTION. In his paper on the Orthoptera of the Galapagos Islands^ Scudder enumerates eight expeditions which have made collec- tions there. These are Darwin in the Beagle^ 1835 \ the Swed- ish frigate Etigenie^ 1852 ; Louis Agassiz, in the Hassler^ 1872 ; Commander Cookson, in the Petrel, 1875 ; Wolf, State Geolo- >Bull. Mus. Com. Zool., Vol. xxv, No. i, pp. 1-24, PI. i-iii, Cambridge, Sept., 1893. Proc. Wash. Acad. Sci., November, 1901. (4S7) 488 McNeill gist of Ecuador, 1875; \h.e. Albatross, 1888; Alex. Agassiz, in the Albatross, 1891 ; and G. Baur for Clark University, 1891. Scudder's paper is based on the specimens obtained by all the expeditions except the Beagle, Eugenie and Petrel, and he had seen specimens of all the species enumerated by him, except one, which is of uncertain occurrence. Butler referred two larval mantids to the genus Vates and Scudder concludes that it was impossible to have referred the specimens he knew to that genus. Twenty species of Orthoptera are given in this paper, these species representing all the families except Phasmidee. All the Blattids, however, five in number, are cosmopolitan species. Of the remaining ffteen two are of such doubtful occurrence that they may be excluded, leaving but thirteen indigenous species. Moreover, since the forficulid, Anisolabis atmulipes Lucas, must be regarded as an introduced species, this number must be still further reduced to twelve. These twelve are included in eleven genera, representing four families. The Blattidj£ and Forficu- lidas are represented only by cosmopolitan species, and Phas- midas is not known. Excluding the few doubtful cases, species are referred to thirty-six localities, or excluding the cosmopol- itan forms to twenty-eight. The above outline of our previous knowledge of Galapagos Orthoptera has been given in order to clearly show the additions made by the Hopkins Stanford Expedition. Messrs. Snodgrass and Heller spent about six months in the Islands; usually staying only a few days at each one. Albemarle was however twice visited and several weeks spent in its ex- ploration. No special effort was made to collect Orthoptera as the purpose of the expedition was to make as complete collec- tions as possible of the entire fauna and flora of the islands. The insect collecting was done chiefly by Mr. Snodgrass. The following table exhibits the distribution of the Orthoptera. It will be seen from this that Orthoptera were obtained from all islands previously visited except two, Jarvis and Gardner, and from four new localities, Narboro, Culpepper, Abingdon and Bindloe. Omitting the cosmopolitan Blattids, which he made no effort to collect, Mr. Snodgrass obtained all the species hitherto known, except two, Closteridea batiri Scudd. and ORTHOPTERA 489 DISTRIBUTION OF ORTHOPTERA IN THE GALAPAGOS ISLANDS. Note. New species in black face type. I,ocalities previously reported are shown by an *, not previously reported, by a t- Species. Si 1 CO S < t t HI 3 >— > '> u cd 1— > a s n Q V n s 0 to a 't, u c« M a u *t 0 0 n u 0 »i V to .a 0 s 0 1 u 516 ?>2 516 33 51b 32 51b 74 525 75 52s 27 515 27 515 27 515 8 510 .SO 520 19 513 SO 520 19 513 20 513 13 511 41 5i« 25 515 7,9 5i» .39 5i« 47 519 16 512 36 517 30 51b 49 519 3 509 42 5i« 3 509 27 51S 9 510 10 511 17 513 31 516 31 516 31 516 59 523 22 514 18 513 61 523 60 523 23 514 60 523 4 509 2 509 532 STARKS Terms. Mittleres Stuck des Kiemen- bogens Muskel Grathen Nasal Nasal Nasalis ossis frontis , Nasenbein Nasentheil Nasentheil des Stirnbeines. Neural-arch Neural process , Neural spines Neurapophyses Synonym of: Ceratobranchials. Epipleurals Oberarmbein Oberaugenbein Oberaugenholenbein Obere Gelenkbeln Oberer Dorn-forsatz Obere rippe Obere Schlundknochen Oberes Schulter blatt Oberes Stiick Oberes Stiick des Kiemenbo- gens Obere Wirbelbogens Oberflachliche Knochen-lam- elle Oberkieferbein Occipital externe Occipitalis ossis occipitis Occipital laterale Occipital supcirieure Omolite Omoplate ■ Opercle Operculaire Operculum , Operculum pori acustici Opisthotic , Opisthoticum Orbitalfliigel des Keilbeins Orbitosphenoid , Os angulare , Os articulare Os basilare , Os carre Os condyloideum Os coracoidien Os dentale Os du carpe Os ethmoideum Os ethmoideum Os extrascapulare Os f rontale Os frontale anterius Os frontale posterius Ethmoid Ethmoid , Nasal Ethmoid Ethmoid Neurapophyses Neurapophyses Postclavicle Supraorbital Supraorbital Hyomandibular Neural spines Interneurals Superior pharyngeals , Posttemporal Hypercoracoid Epihyals Neurapophyses Opisthotic Maxillary Epiotic Supraoccipital Exoccipital Supraoccipital Posttemporal .. Supraclavicle.. Opercle . Opercle . Pterotic. Pterotic Prefrontal ... Alisphenoid . Angular Articular Basioccipital. Quadrate Articular Postclavicle .. Dentary Actinosts Ethmoid Prefrontal Pterotic Frontal Prefrontal ... Sphenotic Page. 42 51S 74 525 51 520 2 509 2 509 51 520 2 509 2 509 67 524 67 524 68 524 67 524 56 521 4« 519 48 519 17 513 68 524 75 525 4.5 519 53 520 57 522 43 519 67 524 10 511 31 516 7 510 8 510 11 511 8 510 53 520 54 520 25 515 25 515 25 515 9 510 10 5" 9 510 3 509 16 512 29 515 28 515 12 511 19 513 28 515 56 521 30 516 60 523 2 509 3 509 9 510 4 509 3 509 5 509 SYNONOMY OF THE FISH SKELETON 533 Terms. Os incisivum Os innominatum Os innominatum Os intermaxillare Os interparietale Os lingual Os lingual s. entoglossum... Os mastoideum Os mastoideum Os maxillare Os nasi Os occipitale laterale Os occipitale superius Os occipital externum Os palatinum Os palatinum Os parietale Os pharjngien supdrieur... Os pharjngeum superius.... Os pterjgoideum Os quadratojugale Os quadratum Os quadratum s. tjmpanicum Ossa carpi Ossa carpi Ossa infraorbitalia Ossa interspinalia s. obere Flossen-trager Ossa jugalia Ossa metacarpi Ossa orbitalia Ossa pharjngea inferiora Ossis hvoidei Os sphenoideum anterius Os sphenoideum basilare Os styloideum Os sjmplecticum Os temporale Os terminale Os transversum Os transversum s. pterygoi- deum externum Os tjmpani Os tjmpanicum Os zygomaticum Otosphenal Otosteal Synonym of: Palatin Palatine Paraal Paraal Parapophyses Parasphenoid Para-vertebral elements. Parethmoid Parietal Paroccipital Premaxillary Basisphenoid Opisthotic Premaxillary , Epiotic Glossohjal Glossohyal Pterotic Epiotic , Maxillary Nasal Exoccipital Supraoccipital Epiotic Pterygoid Palatine Parietal Superior pharyngeals Superior pharyngeals Mesopterygoid Qiiadrate Quadrate Hyomandibular Hypercoracoid Hypocoracoid Suborbitals Interneurals Suborbitals Actinosts Suborbitals Lower pharyngeals Epihyal Basisphenoid Parasphenoid Interhyal Symplectic Hyomandibular Nasal Mesopterygoid Pterygoid Metapterygoid., Metapterygoid. Suborbitals ^ Basioccipital.... Opisthotic Palatine Parapophyses Ribs Parapophyses. Prefrontal Epiotic. Page. 32 516 14 512 10 511 32 516 7 510 37 517 37 517 9 510 7 31 51 510 516 516 II Sii S 510 7 510 20 513 21 6 510 45 519 45 519 22 514 19 513 19 513 17 513 57 58 1522 522 50 520 75 525 60 520 523 50 46 520 519 34 51b 14 512 13 511 33 18 51b 513 17 .SI 3 51 520 22 514 20 513 23 5H 23 514 50 520 12 5" 10 511 21 514 21 514 72 525 73 525 72 525 13 5JI 72 525 3 6 509 510 7 510 534 STARKS Terms. Synonym of: Parte annulaire Partie superieure de I'arceau branchiale Paukering-Knochen Pectoral rays Pelvic girdle Perial Peri-vertebral elements Petite pi^ce laterale Petrosa Petrosal Petrosal Petrosum Pflugschar Pharyngeal arch Pharyngiens inferieurs Phary ngo-branchial Piece articulaire Piece branchiale Pifece branch iale Pifece externe de partie inferi- eure de I'arceau branchiale.. Pi^ce interne de partie inferi- | eure de I'arceau branchiale.. Plaque triangulaire et verticale Pleurals Pleurapophyses Plureal inferieure ' Plureal superieure Postclavicle Postclavicula Posterotemporal Post frontal Posttemporal Precoracoid Prefrontal Premaxillary Preopercle Preopercule Preoperculum Preorbital Presphenoid Pretym panic Problematischer Skelettheil ... Procoracoid Progressus ascendens piscium Prootic Prooticum Proscapula Prosethmoid Ptereal Pterotic Pterygoid Pterygoideum externum Pterygoideum internum Pterygoideum posterius Pterygoidien interne Pubic bones Neurapophyses . Epibranchials ... Hyomandibular. Neurapophj'ses , Neurapophyses Basihyal Prootic Prootic Opisthotic Prootic Vomer Lower pharyngeals ... Lower pharyngeals ... Superior pharyngeals Hy pobranchial Ceratobranchial Epibranchial Ceratobranchials. Ilypobranchials... Ilvpural Ribs Ribs Ceratobranchials. Epibranchials Postclavicle ... Supraclavicle. Sphenotic Mesocoracoid Preopercle. Preopercle. Parasphenoid . Metapterygoid. Postclavicle Hypocoracoid . Parasphenoid .. Prootic .. Clavicle , Ethmoid , Prootic... Pterygoid Mesopterygoid. Metapterygoid.. Mesopterygoid. Pelvic girdle 67 Page. 524 43 519 17 513 61 523 62 523 67 524 67 524 36 517 I."; 5'2 I. 5 512 ID 5" 1"; 512 I 508 46 519 46 519 45 519 41 5i« 42 5i« 43 519 42 518 41 518 79 526 73 525 73 525 42 518 43 519 .S6 .521 .56 521 54 520 5 5" 53 520 59 523 3 509 32 520 24 515 24 515 24 515 49 519 13 511 23 514 56 521 5« 522 13 5" 15 512 15 512 55 521 2 509 15 512 9 510 20 513 20 513 22 514 23 514 22 514 62 523 SYNONOMY OF THE FISH SKELETON 535 Terms. Quadrate Querforsatz Queue de I'os hyoide. Queue de I'os hyoide. Radial Radii branchiostegi Radius Radius and Cubitus Ramus mandibul« Rayons branchiosteges. Rayons de la pectorals . Rhinosphenal Rib Riechbein Riechbeinkorper , Rippe Gelenkstiick , Rippen Rocher Rocher rudimentaire Riicken-flossen strahlen u stecheln Riickentheil und Ober-sternaL theil des Urwirbelbogens... Scapula Scapula Scapula inferior Scapulaire Scapulare Scapula superior Scheibenfdrmig Knoche......... Scheitelbein Schiefer Forsatz Schlafbeinschuppen Schulterblatt Schuppentheil des Hinter hauptbeins Schuppentheil des Schlafbein Schuppentheil des Schlafens beines Schwanzwirbel Schwanzflossen Strahlen , Seibbein Seitlichen obern Hinterhaupt beine Seitlichen Richtbein Seitlichen untern Hinter- haupt beine Seitlicher Tertiar-wirbel Serrial Shulterblatt Sous-opercule - Sous-orbitaires Spangenstiick Sphenoide anterieur Sphdnoide principal Sphenoideum basilare Synonym of : Parapophyses.. Basibranchials, Urohyal Hypercoracoid ., Branchiostegals Hypocoracoid .... Actinosts Articular , Branchiostegal ., Pectoral rays Vomer Prefrontal Ethmoid , Parapophyses. Ribs Opisthotic , Opisthotic , Dorsal rays and spines. Rib Supraclavicle... Hypercoracoid Supraclavicle... Supraclavicle... Posttemporal... Posttemporal... Metapterygoid. Parietal Zygapophyses. Sphenotic Posttemporal... Supraoccipital. Pterotic Hyomandibular.. Caudal vertebrae Caudal rays Ethmoid Epiotic Prefrontal. Exoccipital Zygapophyses .. Hyomandibular Supraclavicle Subopercle Suborbitals Mesocoracoid ... Basisphenoid.... Parasphenoid ... Parasphenoid ... 19 72 40 38 57 39 .^S 60 28 39 61 I 73 3 2 72 73 10 10 76 73 Page. 513 525 518 517 522 518 522 523 515 518 523 !;o8 525 509 509 525 .'525 5" 5" 525 525 54 520 57 522 54 520 54 520 53 520 53 520 23 6 514 510 71 524 5 509 53 520 8 520 9 520 17 65 80 513 524 ^26 2 509 7 510 3 509 II 511 71 524 17 513 54 26 520 515 50 520 59 523 14 512 13 5" 13 5" 536 STARKS Terms. Sphenoid posterieur Sphenotic Squama occipitalis Squama temporis Squamosal Squamosa ossis temporum , Stapeal Sternal wirbel Korper Stirnbein Stylet de premiere arc( branchiale Stjlets St jloh y al Stjloide Styloide de I'os hjoide Sub-cotyleal Sub-dental Submalleal Subopercle Suboperculum Suborbitals Subtectals Superior branchihyals Superior pharyngeals Supraclavicle Synonym of: Parasphenoid Supraoccipital .. Pterotic Pterotic , Hyomandibular. Opercle Haemal spine Frontal Suspensory pharj^ngeal Epipleurals Interhyal Interhyal Interhyal Angular Dentary Articular Subopercle. Alisphenoid ... Epibranchials Supraclayicula Supracleithra Supracleithra Supralinear Supraoccipital Supra-occipitine Supraorbital Suprascapula Supratemporal Suroccipital Sur-orbitaire Sur-temporal Suspensory pharyngeal. Symplectic Symplectique Supraclavicle... Posttemporal... Supraclavicle... Supratemporal. Supraoccipital. Posttemporal.. Exoccipital Supraorbital.... Supratemporal. Symplectic. Teleotemporals Temporal Temporal Temporale Tertiar-wirbel T6te glenoidale Thranenbein Thriinenbein Thyr^al Transverse Transverse process Troisieme os I'avant bras qui porte I'nageoire pec- torale Tur binal Tympanal Tympanal Postclavicle Sphenotic Hyomandibular Pterotic Centrum Basihyal Prefrontal Preorbital Hypobranchials Pterygoid Parapophyses ... Mesocoracoid.., Nasal Preopercle Metapterygoid. Page. 13 5" 5 509 8 510 9 510 9 510 17 513 25 515 70 524 4 509 44 519 74 525 33 516 33 51b 33 51b 29 515 ^o 516 28 515 26 515 26 515 50 520 16 512 43 519 45 519 54 520 54 520 53 520 54 520 52 520 8 510 8 510 48 519 53 520 52 520 II 511 48 519 52 520 44 519 18 513 18 513 56 521 5 509 17 513 9 510 66 524 36 517 3 509 49 519 41 5i« 20 513 72 525 59 523 51 520 24 515 23 514 SYNONOMY OF THE FISH SKELETON 537 Terms. Tjmpano-malleal Ulna Unteraugenhohlenbein Unterdeckel Untere Bogen Untere Dorn-forsatz Untere keilbeinfliigel Untere querforsatz Untere Schlundknochen Un teres Schulter blatt Unteres Stiick des Kiemenbo- gens Unterflossen triiger Unter Gelenkbein Unterkiemendeckelstuck Unter-sternal theil des Urwir- belbogens Upper epibranchial of first branchial arch Urohyal Uro-hjal Uro-serr ial Synonym of: Symplectic Hjpercoracoid Suborbitals Subopercle Hsemal spines Haemal spines Mesopterygoid Parapophjses Lower Pharyngeals. Supraclavicle Hypobranchials. Interhaemals Quadrate Subopercle Hsemapophyses .... Suspensory pharyn Verbindungstiick Ventral spine Vertebres abdominales Vertebres caudales Verticale Platte Vomer Vorderarmknochen Vorderar mkn ochen Vorderar mbein Vorder deckel Vordere clavicula Vordere Schlaf enfliigel Vordere Schliisselbein Vorderes Stiick Vorderes Stiick des grossen Zungenbeinhornes Vorderes Stiick des os quad- ratum Vorkiemendeckelstiick Weichstrahlen and Stechel- strahlen der Afterflosse Weichstrahlen und Stechel- strahlen der Riickenflosse... Wir bel-korper Zahnstiick des Unterkiefers ... Zitsenbein Zungenbein Zungen -bogen Zungen-bogen Zungen-horn Zungen-horn Zwischendeckel Zwischenkieferbein Zvvischenkiemendeckelstiick... Zwischerischeitelbein Zygapophyses Basibranchial Symplectic Suspensory pharyngeal Abdominal vertebrae Caudal vertebrae Hypural Hypocoracoid.. Hypercoracoid Hypercoracoid Preopercle Clavicle Alisphenoid .... Clavicle Hypocoracoid ., Ceratohyal Qiiadrate .. Preopercle. Anal rays and spines. Dorsal rays and spines. Centrum Dentary , Pterotic Urohyal Epihyal Ceratohyal Epihyal Ceratohyal Interopercle Premaxillary Interopercle Epiotic Page. i8 513 .S7 522 50 520 26 515 70 524 70 524 22 514 72 525 46 519 54 520 41 518 77 526 19 513 26 515 69 524 44 5 '9 3« 5'7 40 518 18 513 44 519 63 523 64 523 65 524 79 1526 I 508 .5« 522 57 522 57 522 24 515 55 521 16 512 55 521 5« 522 35 517 19 513 24 515 78 526 76 52,S 66 524 30 516 9 510 3« 517 34 51b 35 517 34 51b 35 517 27 515 32 51b 27 515 7 510 71- 524 538 STARKS BIBLIOGRAPHY. The follo%ving works contain all the terms here quoted : Agassiz, Louis. 1833-1845. Histoire des Poissons Fossiles. Bojanus. 1818. Versuch einer Deutung der Knochen in Kopfe der Fische. In ' Oken's Isis.' Carus. 1834. Lehrbuch der Vergleichenden Anatomie. Cope, Edward D. 1871. Observations on the Systematic Relations of the Fishes. Proc. of the American Association for the Advancement of Science. Cuvier, Georges. 1829. Le Regne Animal distribue d'apres son organisation, pour servir de base a I'histoire naturelle des animaux, et d'introduction a I'anatomie comparde. Paris. Cuvier and Valenciennes. 1828-1845. Histoire Naturelle des Poissons. Erdl, M. P. 1848. Beschreibung des Skeletes des Gymnafchus niloticus. Abhand. Akad. Wiss., V, 209. Franque, Henricus. 1847. Amiffi calvK Anatomium Descripsit Tabulaque lUustravit. Berlin. Gegenbaur, C. 1865. Untersuchungen zur Vergleichenden Anatomie der Wirbelthiere. Heft II. Schultergurtel der Wirbelthiere. Brustflosse der Fische. Leipzig. Gegenbaur, C. 1870. Grundziige der Vergleichenden Anatomie. Leipzig. Geoffrey, St. Hilaire. 1824. Annales des Sciences Naturelles, III. Gill, Theodore. 1872. Arrangement of the Families of Fishes, Smithsonian Institution Washington, D. C Gill, Theodore. 1888. On the Classification of the Mail-cheeked Fishes. U. S. National Museum, Washington, D. C Grant, R. 1835-1841. Outlines of Comparative Anatomy. Grant, R. 1833-1834. Lectures on Comparative Anatomy. Lancet. Gunther, Albert. 1880. An Introduction to the Study of Fishes. Edinburgh. SYNONOMY OF THE FISH SKELETON 539 Kallmann. 1837. Die Vergleichende Osteologie des Schliifenbeins. Huxley, T. H. 1872. Manual of the Comparative Anatomy of the Vertebrated Animals. New York. Kostlin. 1844. Der Bau des Knochernen Kopfes. Meckel. 1821-1833. System der Vergleichenden Anatomie. Muller, Johannes. 1843. Eericht liber die Fortscliritte der Vergleichenden Anatomie der Wir- belthiere. Archiv fiir Anat. Oken. 1843. Lehrbuch der Natur-Philosophie. Owen, Richard. 1866. On the Anatomy of Vertebrates. Owen, Richard. 1846. Lectures on the Comparative Anatomy and Phj'siology of the Verte- brate animals, Delivered at the Royal College of Surgeons of England in 1844 and 1846. Part I. Fishes. London. Parker, W. K. 1868. A Monograph on the Structure and Development of the Shouldei"- girdle and Sternum in the Vertebrata. London. Parker, W. K. 1872. On the Structure and Development of the Skull in the Salmon. Bakerian Lecture II. Parker, T. Jeffrey. 1893. A Course of Instruction in Zootomy- (Vertebrata). London. Shufeldt, R. W. 1885. The Osteology of Amia Calva. Report of the U. S. Fish Commission for 18S3. Washington, D. C. Stannius. 1839. Symbols ad Anatomiam Piscium. Stannius, H. 1854. Zootomie der Fische. Berlin. Starks, E. C. 1899. The Osteological Characters of the Fishes of the Suborder Percesoces. U. S. National Museum. Washington, D. C. Vogt and Yung. 1888. Lehrbuch der Praktischen Vergleichenden Anatomie. Wagner, R. 1843-1844. Lehrbuch der Zootomie. Proc. Wash. Acad. Sci., November, 1901. Proc. Wash, Acad. Sci. Vol, hi Plate lxiii FIG. 3. Cranium of Roccus lineatus. FIG. 1. TOP VIEW FIG, 2. BOTTOM VIEW FIG. 3, SIDE VIEW FIG, 4. END VIEW Proc. Wash. Acad. Sci. Vol. hi Plate lxiv Proc. Wash. Acad. Sci. Vol. hi Plate lxv PROCEEDINQS OF THE WASHINGTON ACADEMY OF SCIENCES Vol. Ill, pp. 541-546. [Text Figures 47-57.] November 29, 1901, PAPERS FROM THE HOPKINS STANFORD GALA- PAGOS EXPEDITION, 1898-1899. V. ENTOMOLOGICAL RESULTS (5) : THYSANURA AND TERMITID^. By Nathan Banks, U. S. National Museum. Two species of Thysanura were collected on the Galapagos Islands, and one, in considerable numbers, on Clipperton Island. All appear to be new, but belong to genera of world-wide dis- tribution. One of the species from the Galapagos Islands is of very large size. The species from Clipperton Island is inter- esting on account of lacking a curious character present in many, if not all, of the other species of the genus. The Col- lembola do not appear to have been collected, although doubt- less fairly abundant on the islands. Family LEPISMID^. LEPISMA GALAPAGOENSIS sp. nov. Length 20 mm., width of prothorax 5 mm. Body above and below covered with dark steel bhie scales; antennae and cerci an- nulate; legs pale, yellowish on tarsi. Body of usual shape and Proc. Wash. Acad. Sci., November, 1901. 54^ 542 BANKS appearance. Head broad, with 14 tufts of hair seen from above as follows : one in front of each eye, one behind each antenna, two above base of each antenna, one in front of each antenna, and two each side on anterior margin ; below on clypeus there are other Fig. 47. I^e^pi'sma n-a/(iJ>a^oeusis, head. Fig. 4S. Lcpimta galapagoensh, tail. Fig. 49. Lepiima galapagocnsis, maxillary palp. Fig. 50. Lepisnia galapagoensis., la- bial palp. tufts. Maxillary palpi with intermediate joint longest, penultimate nearly twice as long as the last. Labial palpi with last joint foot- shaped. The antennae: are much longer than the body, the cerci about length of body; telson slender and acutely pointed over base of median cercus. Legs with many hairs and spine-like bristles. Thorax with spine-like bristles along sides. On the meso- and metathorax there are on each side margin five roundish groujDs of yellowish pores, on the hind margin about half way from middle to side is an oblique row of them, and there is a roundish group nearer to side. On the posterior margin of each abdominal segment are two oblique rows of pores, one near edge of body, the other about one-third way from edge to median line ; these rows have their inner ends more forwar'' than the outer ends. On each ventral segment there are each side two tufts of yellowish hairs or bristles, besides the appendage. THYSANURA AND TERMITID^ 543 Several specimens from Hood Island in May. The largest species known to me. LEPISMA INSULARIS sp. nov. Length 7 mm., width of prothorax 1.4 mm. Body with light brownish scales, some specimens show the abdomen more or less banded ; legs pale, with many hairs ; antennae and cerci pale, but more or less distinctly annulate with dark. Head more conical than preceding species ; there is a crest of hairs over base of each antenna, and a few scat- tered groups on anterior margin. The maxillary palpi have the last joint a little longer than preceding joint, the intermediate joint a little longer than any of the others. The labial palpi have the last joint ob- scurely triangu lar. The antennae are about the length of the body, and the cerci are plainly shorter than body. The telson is broadly trian- gular and rounded at tip. The legs have the usual stout spur at upper tip of each tibia. There are no distinct groups of pores on the thoracic segments, but on the ab- dominal ones there is on each side near the edge of body an obliq'ie row of three pores. Several specimens from Narboro Island and one from Tagus Cove, Albemarle Island, all in January. Fig. 51. and tail. Lcpiima tnsiclan's, head Fig. 52. Lcpisma insularis, max- illarj palp. Family MACHILID^E. MACHILIS MUTICA sp. nov. Length when extended 7 mm. Body clothed above with dark scales, some paler patches on. the thorax ; pale beneath ; legs and palpi pale ; antennas annulate ; cerci dark above, pale beneath ; abdominal appendages pale. Body curved, the head bent down. Eyes united for only a short distance, below each eye is a white hour-glass figure, the anterior end rather larger but shorter than posterior end. Between 544 BANKS the bases of antennaj is a median brown spot. The last joint of maxil- lary palpi is plainly shorter than the penultimate, which is about equal to the one preceding it; the basal joints are marked above with Fig. 53. Machilis mutica^ head. Fig. 54. Machilis. miitka. end of body. brown. Antennaj once and one-half length of body; the basal joint about twice as long as wide; beyond the joints are of the usual curious arrangement ; first several hard dark rings alternate with pale, then three dark rings in a group, then four, then six, then eight, then ten or twelve, and keeping at about ten to sixteen to the tip. Median cercus as long as body, lateral cerci less than one-third the length of the median. There does not appear to be any trace of the appendages to the second and third coxaj, found in other species. A number of specimens from Clipperton Island in November. Family TERMITID^. Of the two species of Termites collected both appear to be distinct from any previously described. When the species from the Central American region are more full known it may be found that they also occur there. The genus Calotermes is found throughout tropical countries. CALOTERMES GALAPAGOEXSIS sp. nov. Length, with wings, 9.5 mm. ; body 5 mm. Yellowish brown ; mouthparts, antennas, legs and ventral region paler; wings nearly hyaline, subcostal vein audits branches brown, costal area slightly infuscate. Head quite broad, eye situate before the middle, ocelli present. Prothorax much broader than long, scarcely narrower than the head, rounded behind, with a median pale line above. Abdomen nearly as long as head and thorax together. Wings much longer than body, quite broad, pointed at tip ; the sub- THYSANURA AND TERMITID^E 545 CCE Fig. 55. Calotcrmes galapagoensts^ wing. Fig. 56. Calotermes galapa- goensis, head and pronotum. costal vein does not branch till beyond the middle of wing, median vein about half-way between the subcostal and submedian with the usual branches simple, except those near the apex which are forked. Several specimens from Wenman Island in December. CALOTERMES PACIFICUS sp. nov. Length, with wings, 11 mm. ; body 8 mm. Pale yellowish brown ; beneath paler, as also on legs and anten- na ; wings hyaline, costal and subcostal veins with the branches brown. Head not very large, eyes at about middle, ocelli present. Prothorax nearly twice as broad as long, concave in front, fully as broad as head. Meso- and metathorax much longer than prothorax, and fully as broad. Abdomen plainly longer than head and thorax together. Wings not greatly longer than the body, moderately broad, branches before mid- dle and before end of costal, the median vein is about half-way between the subcostal and sub- median veins, branched near the tip and con- nected to subcostal, the submedian has most of its apical branches forked, those toward base are very oblique. Soldier — Length 12 mm. Head castaneous, darker in front than behind; Fig. 57. Calotermes mandibles black; rest of body, legs and antennse /«"/c«5, soldier and pale yellowish. Head about once and one-third '"^"'^'b^^- longer than broad, sides slightly convex, equally broad in front and behind, somewhat flattened above, near anterior margin slightly concave above the middle. Mandibles stout and large, with two small teeth toward tip and a larger one basad, on outer side at base there is a hump. Antennae slender, about as long as width of the head, 14-jointed, the third joint plainly longer than any of the others, also darker. Prothorax plainly broader than long, fully as large as meso- and metathorax together, the latter but slightly sepa- 546 BANKS rated from each other, and each with a small projection or tubercle near each posterior outer corner; abdomen short, in the middle a little broader than the head. A number of si^ecimens from Albemarle Island in December and February, and from Narboro Island in January. Some soldiers are plainly smaller than others and have their heads a trifle shorter. PROCKEDINQS OF THE WASHINGTON ACADEMY OF SCIENCES Vol. Ill, pp. 547-55S. November 29, 1901, DESCRIPTIONS OF 23 NEW HARVEST MICE (GENUS REITHRODONTOMYS). By C. Hart Merriam. The mammal collection of the Biological Survey contains a large number of specimens of the so-called harvest mice, genus Reithrodo7itomys. Among these are many not heretofore known to naturalists. Twenty-three of these are here described, as fol- lows : REITHRODONTOMYS TENUIROSTRIS sp. nov. 737^^ from Todos Santos, Guatemala (altitude 10,000 ft.). No. 76919. $ ad. U. S. National Museum, Biological Survey Coll. Dec. 29, 1895. E. W. Nelson and E. A. Goldman. Orig. no. 8917. Characters. — Size large ; tail and ears long and dark; fore feet very large ; fur long, soft and full ; color intense fulvous. Color. — Upperparts rich deep fulvous, becoming intense ferrugi- nous on posterior part of back and rump, somewhat more yellowish an- teriorly; palest on top of head; underparts salmon fulvous; chin and lips much paler, almost whitish; wrists and middle part of fore feet dark brown ; outer side of feet and toes white ; ankles and hind feet nearly to base of toes, dark brown; toes whitish; tail dark brown or dusky all around ; a small dark ring around eye. Cranial characters. — Braincase inflated, subglobular, abruptly contracted anteriorly at posterior corner of orbits ; zygomata squarely spreading anteriorly, their outer sides nearly parallel; rostrum and nasals long and slender, slightly upturned from plane of frontals; nasals acute posteriorly, ending on plane of premaxillae ; incisive for Proc. Wash. Acad. Sci., Nov., 1901 547 548 MERRIAM amina long and rather slender ; bulke small, set very obliquely to axis of skull ; molars rather large. Measureinents. — Type specimen ( $ ad.) : total length 210 mm. ; tail vertebrae 124; hind foot 23. Skull: basal length 21.5; zygomatic breadth posteriorly 13; length of palate 12.5 ; length of molar series 4. REITHRODOXTOMYS TENUIROSTRIS AUREUS subsp. nov. Type from Calel, Guatemala (altitude 10,200 ft.). No. 76939. 9 ad. U. S. National Museum, Biological Survey Coll. Jan. 15, 1896. E. W. Nelson and E. A. Goldman. Orig. no. 9140. Characters. — Similar in general to A', temcirostris^ but very much paler and yellower; underparts in adult purer fulvous (less of the sal- mon tinge) ; underparts in a young specimen whitish. The skull dif- fers from that of tenuirostris in the following particulars: braincase less inflated; nasals narrower posteriorly and ending slightly in front of premaxillaj; zygomata slightly less spreading anteriorly, their sides not parallel; palate shorter; the incisive foramina long and cutting plane of first molars ; bullae less oblique. i\Ieasitrements. — Type specimen (9 ad.): total length 196 mm.; tail vertebraj 112; hind foot 22.5. Skull: basal length 20; zygomatic breadth posteriorly 13; length of palate 11.5 ; length of molar series 4.5. REITHRODONTOMYS MICRODON sp. nov. Type from Todos Santos, Guatemala (altitude 10,000 ft.). No. 76923. 9 ad. U. S. National Museum, Biological Survey Coll. Dec. 31, 1S95. E. W. Nelson and E. A. Goldman. Orig. no. 8977. Characters. — Size small; tail and ears long, dark, and nearly naked; fur long, soft and full; general appearance almost exactly as in the much larger R. tenuirostris., of which externally it is an almost exact miniature. Color. — Upperparts deep reddish fulvous, most intense on rump, palest on head ; sides bright fulvous; underparts salmon fulvous (in young specimens sometimes white) ; a dark ring around eye; a dark brown spot on wrists; fore feet and toes white; ankles and hind feet dark brown; toes white; tail dark all around, but slightly paler beneath. Cranial characters. — Skull small, light and papery, with rounded, inflated braincase and rather squarely spreading zygomata; rostrum and nasals slender, nasals ending about on plane of premaxillaa. Com- NEW HARVEST MICE 549 pared with tenuirostris the skull is about two-thirds as large, the rostrum relatively shorter and less upturned, the teeth very much smaller. Measurements. — Type specimen (9 ad.): total length 185 mm.; tail vertebrae 113; hind foot 31. Skull : basal length 17.5 ; zygomatic breadth posteriorly 11 ; length of palate 10; length of molar series 3. REITHRODONTOMYS MICRODON ALBILABRIS subsp. nov. Type from Cerro San Felipe, Oaxaca, Mexico (altitude 10,000 ft.). No. 68393. 9 ad. U. S. National Museum, Biological Survey Coll. Aug. 35, 1894. E. VV. Nelson and E. A. Goldman. Orig. no. 6629. Characters. — Similar in size and general appearance to R. micro- don., but very much paler, the upperparts fulvous instead of intense ferruginous; lips, sides of nose, and underparts pure white instead of salmon. The skull differs slightly from that of microdon : braincase larger, more inflated ; zygomata broader anteriorly ; incisive foramina shorter; bullae less inflated and more flattened on outer side; molars slightly larger and heavier. Measurements. — T3'pe specimen (9 ad.) : total length 187 mm.; tail vertebrae 117; hind foot 20. Skull: basal length 17; zygomatic breadth posteriorly 11.5; length of palate 10; length of molar series 3. REITHRODONTOMYS CHRYSOPSIS TOLUC^ subsp. nov. Type from north slope of Volcan Toluca, State of Mexico (altitude 11,500 ft.). No. 55895. 9 ad. U. S. National Museum, Biological Survey Coll. Sept. 10, 1893. E. W. Nelson and E. A. Gold- man. Orig. no. 5454. Characters. — Similar to chrysopsis^ but top of head and upper parts generally much darker, more profusely and finely mixed with black tipped hairs; sides duller and much less fulvous; tail shorter; underparts whitish, the plumbeous underf ur showing through ; hind feet brownish to near base of toes. Skull similar to that of chry- sopsi's, but slightly smaller and narrower, with even more slender rostrum, slightly smaller bullae, and slightly smaller molars. Ex- ternally the resemblance to perotensis is much closer than to chry- sopsis, but the skull is quite different from that of perotensis and very close to chrysopsis. Measurements. — Type specimen (9 ad.): total length 180 mm. ; tail vertebrae 98; hind foot 21. 550 MERRIAM REITHRODONTOMYS PEROTENSIS sp. nov. Type from Cofra de Perote, Vera Cruz, Mexico (altitude 9,500 ft.). No. 54424. $ ad. U. S. National Museum, Biological Survey Coll. May 31, 1893. E. W. Nelson and E. A. Goldman. Orig. no. 4912. Characters. — Pelage long, soft, and woolly; ears large and dark; tail medium; similar in general to cZ/rj^o/^w but color everywhere duller; top of head and middle part of back darker; skull and teeth much smaller. Color. — Upperparts pale dull yellowish fulvous, tending toward buffy gray on head and toward fulvous on rump ; top of head and back profusely lined with black hairs, most abundant along median line where they form a dark median dorsal area extending to base of tail ; underparts buffy salmon, ankles and wrists brownish ; fore and hind feet whitish ; tail dark above, indistinctly paler below. Cranial characters. — Skull in general similar to that of chrysopsls but smaller; braincase flatter; zygomata squarely spreading anteriorly, their outer sides parallel ; rostrum shorter but equally slender ; nasals ending on plane of premaxilhe ; incisive foramina long and open; length of upper molar series 3.30 (contrasted with 3. So in chrysopsis). Measurements. — Type specimen {$ ad.): total length 176 mm.; tail vertebras 102; hind foot 19. REITHRODONTOMYS ORIZAB^^ sp. nov. Type from Mount Orizaba, Puebla, Mexico (altitude 9,500 ft.). No. 53626. $ ad. U. S. National Museum, Biological Survey Coll. April 24, 1S93. E. W. Nelson and E. A. Goldman. Orig. no. 4734. Characters. — Size medium; ears blackish and well haired; tail long and rather slender; pelage long, soft and woolly; closely related to chrysopsis and perotensis. Color. — Upperparts golden fulvous, becoming fulvous on rump, slightly darkened on posterior part of back with dark tipped hairs (al- most exactly as in chrysopsis) \ lips and chin grayish; underparts buffy salmon; tail dark above, indistinctly paler below; wrists and ankles dark ; fore and hind feet whitish. Cranial characters. — Skull similar to that oi perotensis but rostrum slightly broader; braincase narrower and more rounded; bullie more transverse ; molar teeth as in perotensis. Rctnarks. — Externally orizabcc is hardly distinguishable from the more highly colored specimens of chrysopsis, although the head is more strongly fulvous, the ears decidedly more hairy, and the tail less NEW HARVEST MICE 55 1 distinctly bicolor. The skull is nearer that of perotcnsis^ from which it differs as above pointed out. Measurements. — Type specimen {$ ad.) : total length 1S2 mm.; tail vertebrae 105 ; hind foot 20. REITHRODONTOMYS COLIMyE sp. nov. Type from near timberline, Sierra Nevada de Colima, Jalisco, Mexico (altitude 12,000 ft.). No. fffH- ^ ^^' U. S. National Museum, Biological Survey Coll. April 21, 1S92. E. W. Nelson and E. A. Goldman. Orig. no. 2447. Characters. — Size smallest of the chrysopsis group; ears large and dark ; tail rather short and sharply bicolor ; pelage soft and woolly ; similar in general to chrysopsis but decidedly smaller and with dis- tinctive cranial characters. Color. — Upperparts varying from buffy fulvous to bright golden fulvous strongly darkened on top of head and back by dark tipped hairs ; underparts buffy salmon ; wrists and ankles dark ; fore feet whitish; hind feet brownish, becoming whitish toward toes; tail dusky above, whitish below, with distinct line of demarcation. Cranial characters. — Skull similar to that of chrysopsis tolucce but decidedly smaller, with nasals ending on plane of premaxillae instead of anterior to this plane ; zygomata slightly more squarely spreading anteriorly ; rostrum slightly shorter and broader ; incisive foramina more broadly open ; molar series same size, measuring about 3.6 mm. Measuremejits. — Type specimen ( $ ad.): total length 165 mm.; tail vertebrcE 90 ; hind foot 20. A female from type locality : total length 166; tail vertebrae 90; hind foot 20. REITHRODONTOMYS COLIM^^ NERTERUS subsp. nov. Type from foothill region of Sierra Nevada de Colima, Jalisco, Mexico (altitude 6,500 ft.). No. fffff. $ ad. U. S. National Museum, Biological Survey Coll. April 21, 1892. E. W. Nelson and E. A. Goldman. Orig. no. 2514. Characters. — Similar to colimce^ but tail decidedly longer and less distinctly bicolor; pelage much shorter and coarser (not soft and woolly) ; skull slightly smaller, with smaller molars (molar series measuring 3.3 instead of 3.6), Remarks. — This animal is particularly interesting in showing the changes that take place when a member of the chrysopsis group descends from the high altitudes at which all of the species live. The specimens of typical colimce collected by Nelson and Goldman were found at altitudes of 10,000 and 12,000 feet, while those of the 55: MERRIAM present form were from four to five thousand feet lower. Externally subspecies iterterus appears to be slightly larger than the high moun- tain form, but the difference is mainly due to the greater length of tail [the skull is actually smaller than that of coU»icc\. The pelage has lost the soft, woolly quality characteristic of the chrysopsis series and has become much shorter and coarser, resembling the ordinary members of the genus. Measjirc7)ie7tts. — Type specimen ( 9 ad.) : total length 190 mm. ; tail vertebra; iio; hind foot 20. Average of 3 adults from type lo- cality: total length 186; tail vertebric 105: hind foot 20.5. REITHRODONTOMYS COSTARICENSIS JALAP.^ subsp. nov. Type from alapa, Vera Cruz, Mexico (altitude 4,000 ft.). No. 10S538. $ ad. U. S. National Museum, Biological Survey Coll. May 10, 1901. E. W. Nelson and E. A. Goldman. Orig. no. 14712. Characters. — Similar to costaricctisls^ but paler anteriorly and with greater admixture of black hairs on the back; hind feet grayish brown throughout, including toes, without distinct white edgings; hairs at base of claws white; ankles distinctly darker than feet; side of nose, upper lip (broadly), and underparts white, tlie plumbeous under- fur showing through except on chin and nose patch ; skull similar to that of co^/ar/ctf/w/'^, but rostrum slightly shorter; braincase slightly more inflated; nasals truncate posteriorly about i mm. in front of ends of premaxilljE. Meas7irc7ncnts. — Type specimen ( $ ad.) : total length 197 mm. ; tail 1 19 ; hind foot 21. REITHRODONTOMYS GOLDMANI sp. nov. Type from Metlaltoyuca, Puebla (altitude 800 ft.). No. 93096. 9 ad. U. S. National Museum, Biological Survey Coll. Feb- ruary 12, 1898. E. A. Goldman. Orig. no. 12 153. Characters. — Size small, similar to costar7'ce7tsis^ but very much paler; ears smaller and brownish instead of blackish; tail shorter. Color. — Upperparts uniform ochraceous fulvous not noticeably darkened by black hairs, but darkest on crown of head between ears; palest between eyes; sides of nose, upper lip (broadly), chin and underparts white ; fore feet whitish ; ankles and hind feet brownish, the brown fading insensibly into whitish of toes; tail dusky all round. Cra7iial characters. — Skull similar to that of costarice7isis but in- cisive foramina shorter and less expanded in middle; molar series slightly shorter. NEW HARVEST MICE 553 Measurements. — Type specimen (9 ad.): total length 190mm. tail 109; hind foot 21.5. REITHRODONTOMYS HIRSUTUS sp. nov. Type from Ameca, Jalisco, Mexico (altitude 5,500 ft.). No. 82200. $ old. U. S. National Museum, Biological Survey Coll. Feb. 15, 1S97. E. \V. Nelson and E. A. Goldman. Orig. no. 10537. Characters. — Size large (among the largest of the genus) ; tail long and slender; pelage coarse, almost hispid ; ears rather short and pale ; color grizzled yellowish fulvous. Color. — Upperparts uniform yellowish fulvous, heavily lined with black Jiairs; the fulvous brightest on sides; underparts including sides of nose, lips (broadly) and fore feet buffy whitish (sometimes pale buffy fulvous) ; a dark spot on ankle ; hind foot sparingly clothed with whitish hairs ; tail dusky above, soiled whitish beneath, without sharp line of demarcation. Cranial characters. — Skull large and substantial, in general like \\-\2^\. oi perotnyscus ; braincase somewhat flattened; rostrum medium or rather large ; zygomata rather squarely spreading anteriorly ; nasals broad and bluntl}'^ wedge-shaped posteriorly, ending decidedly anterior to elongated arms of premaxillae ; incisive foramina of moderate length and rather broadly open; bulla; rather small; upper molar series 3.7 mm. Measurejnents. — Type specimen ( $ old) : total length 233 mm. ; tail vertebraa 143 ; hind foot 22. REITHRODONTOMYS GRISEOFLAVUS sp. nov. Type from Ameca, Jalisco, Mexico (altitude 4,000 ft.). No. 82 196. $ ad. U. S. National Museum, Biological Survey Coll. Feb. 9, 1897. E- ^- Nelson and E. A. Goldman. Orig. no. 10501. Characters. — Size medium; ears medium or rather short; well haired; tail short; pelage coarse ; similar to ///ri'«/?/^ from the same locality, but very much smaller, with shorter tail (relatively as well as actually) and more hairy ears. Color. — Upperparts buffy gray anteriorly, becoming buffy yellow- ish or even buffy fulvo.us posteriorly, everywhere conspicuously and coarsely lined with black hairs; sides (including cheeks in full pelage) light golden fulvous; underparts whitish sometimes suffused with buffy or pale buffy fulvous, the fulvous of side of neck showing in axilla on inner side of fore leg ; a small buffy or fulvous pectoral spot some- times present; lips and chin broadly whitish; fore and hind feet whitish, a dark spot on ankles ; tail brownish above, whitish below, 554 MERRIAM without sharp line of demarcation; ears brown with a conspicuous tuft of fulvous hairs at anterior base. Cranial characters. — Skull small, light and thin, of normal form; zygomata standing out rather squarely anteriorly, the outer sides nearly parallel or only slightly narrower anteriorly; nasals relatively broad and bluntly pointed posteriorly falling short of premaxillae; in- cisive foramina large and open for so small a skull ; audital bulla) rather large; molai- series rather small, measuring 3.20 in length. Compared with tenuis the skull is slightly larger, the braincase more inflated and higher. Remarks. — This species is almost a miniature of R. Jiispidus of the same region and adds another case to those already mentioned in which two species, almost identical in external appearance, but one very much larger than the other, inhabit the same locality. Measurements. — Type specimen {$ ad.): total length 169 mm.; tail vertebrie 94; hind foot 22. Average of 3 from type locality : total length 169; tail vertebrtc 97; hind foot 21.4. REITHRODONTOMYS GRISEOFLAVUS HELVOLUS subsp. nov. Type from Oaxaca City, Oaxaca, Mexico. No. 6S3S7. 9 ad. U. S. National Museum, Biological Survey Coll. Aug. 14, 1S94. E. W. Nelson and E. A. Goldman. Orig. no. 6576. Characters. — Similar to griseojlavus but upperparts everywhere conspicuously redder, the back and sides intense ochraceous or orange fulvous instead of buffy yellowish ; grizzling of black hairs less con- spicuous. Remarks. — In color helvolus resembles levipes from San Sebas- tian much more closely than it does griseojlavus., but its skull is smaller and narrower than that of levipes^ with shorter tooth row, in all of which respects it agrees with griseojlavus. Measure?nents.—Ty^e: specimen (9 ad.): total length 188 mm.; tail vertebras iii; hind foot 20. Average of 6 from type locality: total length 182; tail vertebrae 105.5; ^"''"'^^ ^^'^^ 20.1. REITHRODONTOMYS LEVIPES sp. nov. Type from San Sebastian, Jalisco, Mexico (altitude 3,000 ft.). No. 8S057. $ ad. U. S. National Museum, Biological Survey Coll. March 30, 1897. E. W. Nelson and E. A. Goldman. Orig. no. 10S39. Characters. — Size medium; ears rather small and thick; tail rather short; pelage course; color fulvous. NEW HARVEST MICE - 555 Color. — Upperparts fulvous, moderately lined with black hairs, brightest on sides, where in some specimens (as in the type) it is bright orange fulvous ; underparts pale fulvous (in some specimens buffy) ; a dark spot on ankle ; fore and hind feet usually soiled whitish. Cratiial characters. — Skull of medium size; braincase normal; rostrum small; zygomata squarely spreading; bullae rather small; in- cisive foramina medium or rather large ; molars rather small. Com- pared with hirsutus the skull is smaller; rostrum decidedly smaller; zygomata usually more widely and squarely spreading anteriorly ; bullae and teeth decidedly smaller. Compared with the %vi\?^W. griseo- Jlavus from Ameca, Jalisco, the skull averages slightly larger and broader; zygomata decidedly more widely and squarely spreading anteriorly; bulla; smaller; incisive foramina usually longer; molars slightly larger. Measurements. — Type specimen ( $ old) : total length 188 mm. ; tail vertebras no; hind foot 21. REITHRODONTOMYS LEVIPES OTUS subsp. nov. Type from foothill region of Sierra Nevada de Colima, Jalisco, Mexico (altitude 6,500 ft.). No. f|f|f. 9 ad. U. S. National Museum, Biological Survey Coll. April 11, 1892. E. VV. Nel- son and E. A. Goldman. Orig. no. 2439. Characters. — Similar to levipes but pelage softer (less coarse), the dark hairs smaller and less noticeable ; ears decidedly larger ; tail longer; skull similar, but rostrum slightly longer; bullae averaging slightly larger. Measurements. — Type specimen ( 9 ad.): total length 202 mm.; tail vertebrae 120; hind foot 22. REITHRODONTOMYS LEVIPES TOLTECUS subsp. nov. Type from Tlalpam, Valley of Mexico. No. 50746. 9 ad. U. S. National Museum, Biological Survey Coll. Dec. i, 1892. E. W. Nelson and E. A. Goldman. Orlg. no. 3935. Characters. — Similar in genei-al to levipes but somewhat larger; color more yellowish (less fulvous) and much more heavily lined with black hairs ; underparts nearly white, instead of fulvous ; fore and hind feet white. Skull narrower; zygomata less widely spreading anteriorly ; nasals longer and ending with premaxillae ; bullae slightly larger. Remarks. — Specimens from Patzcuaro, Michoacan, and Zimapan, Hidalgo, while less yellow, appear to be referable to this form. Proc. Wash. Acad. Sci., Nov., 1901. ;56 MERRIAM Measurements.— 'Yy^^& specimen (9 ad.): total length 196 mm.; tail vertebra; loS; hind foot 21. Average of 2 specimens from type locality: total length 193; tail vertebrae 106; hind foot 21.5. REITHRODONTOMYS SATURATUS CINEREUS subsp. nov. Type from Chalchicomula, Puebla, Mexico. No. 53633. $ ad. U. S. National Museum, Biological Survey Coll. April 13, 1893. E. W. Nelson and E. A. Goldman. Orig. no. 4659. Characters. — Similar to saturatus but very much paler and grayer, particularly the head and shoulders; tail shorter and more sharply bicolor. Skull similar but slightly smaller; rostrum shorter. Measurements. — Type specimen ( $ ad.) : total length 149 mm. ; tail vertebrae 73 ; hind foot 19. REITHRODONTOMYS SATURATUS ALTICOLUS subsp. nov. Type from Cerro San Felipe, near Oaxaca City, Oaxaca, Mexico (al- titude 10,000 ft.). No. 6S392. $ old, U. S. National Museum, Biological Survey Coll. Aug. 24, 1S94. E. W. Nelson and E. A. Goldman. Orig. no. 6623. Characters. — Similar to saturatus but tail somewhat shorter; rostrum shorter; bullae larger. Measurcmc7its. — Type specimen {$ old): total length 153 mm.; tail vertebrae 75; hind foot 19. Average of 2 males from type lo- cality; total length 152; tail vertebra; 78.5; hind foot 18.5. REITHRODONTOMYS DIFFICILIS sp. nov. Type from Orizaba, Vera Cruz, Mexico (altitude about 4,500 ft.). No. 63735. $ ad. U. S. National Museum, Biological Survey Coll. ' Feb. 20, 1S94. E. W. Nelson and E. A. Goldman. Orig. no. 5868. Characters. — Size a little larger than saturatus; color fulvous; tail bicolor; ears medium or rather short; pelage coarse. Color. — Upperparts fulvous, grizzled with black tipped hairs; underparts washed with pale fulvous except on chin and throat, which are whitish; fore and hind feet whitish ; a dark spot on ankle; tail dusky above, whitish below, with a rather sharp line of demarcation. Cranial characters. — Skull similar in general to that of satura- tus^ but incisive foramina more broadly open; molar series slightly shorter. Measuretnefits. — Type specimen ( ^ ad.): total length 177 mm.; tail vertebrae 100; hind foot 19.5. NEW HARVEST MICE 557 REITHRODONTOMYS DORSALIS sp. nov. Type from Calel, Guatemala. No. 77009. $ ad. U. S. National Museum, Biological Survey Coll. Jan. 14, 1S96. E. W. Nelson and E. A. Goldman. Orig. no. 91 12. Characters. — Size rather large ; ears and tail medium ; tail bicolor ; general color grayish above with dusky dorsal area. Color. — Upperparts grayish washed with buffy, becoming buffy ochraceous on sides ; top of head and broad dorsal area blackish (from profuse admixture of black tipped hairs) ; underparts buffy whitish, in many specimens suffused with buffy fulvous ; lips and chin whitish ; wrists dusky ; fore and hind feet whitish ; tail dark above, whitish below, with rather sharp line of demarcation. Cranial characters. — Skull apparently of the mexicanus type, con- siderably larger iha.n saturatus., but molar teeth small as \x\. saturatus ; rostrum rather long; braincase moderately rounded ; basal length of skull 18.5; zygomatic breadth 1 1.8 ; molar series 3.20. Measurements. — Type specimen ( '^> ^^^^^ (X2) ; <"; longitudinal section of fruit (X2);/. transverse section of fruit (X2); g, seed fXio) ; h, end of branch, showing leaves and position of flower (Xs); ''i out- line of transverse section of leaf (Xio). and not exceeding the capsule in fruit ; corolla campanulate, vertically pL>ited at the base, the lobes pendent and overlapping; filainents tumid below, the broad anthers situated in two planes of five each, biaristate below the apex, opening by large pores ; style short, stout, ovoid, persistent on the fruit ; capsule globose, many-seeded ; seed oblong, slightly or not at all winged. The genus is named for Mr. E. H. Harriman, of New York, through whose courtesy the opportunities and pleasures of his voyage to Alaska, in 1899, were shared by a party of scientific investigators. It is hoped that the Alaska heather, Harrimanella stellcria7ia, one of the most charming and beautiful little plants of the whole Alaskan flora, will serve as a happy reminder of the expedition to all its members. The genus Cassiope, from which Harrimanella is now segregated, has opposite, cuprcssiform, closely sessile leaves, conspicuously swollen or spurred at the base and closeh*^ appressed to the stem, the branches HARRIMANELLA, A NEW GENUS OF HEATHERS 571 thus becoming quadrangular. The flowers of Cassiope occur singly in the axils of the leaves, the pedicels bearing at the base four mem- branaceous bracts ; each sepal has a transverse fold at the base as if the organ had first been bent sharply backward, then at a slightly higher point bent sharply forward again, a character best brought out by a longitudinal median section of a sepal ; the corolla is not plaited at the base and the usvially short lobes are recurved and not overlap- ping in anthesis ; the anthers lie in a single plane ; and the style is elongated, slender, and nearly cylindrical. The seeds may furnish a generic character, as suggested by the conspicuous apical appendage in Cassiope merteiisiana and the absence of any such appendage in Harrunariella stelleria7za. Fig. 63. Cassiope mertensiana. a, flower, with part of calyx and corolla cut a\vay(X5) ; ^^ diagram of flower; c, ovary and style (X5) ! ^> fruit (X2); e, longitudinal section of fruit (X^) ; p, transverse section of fruit (X2) ; ^, seed (Xio); ^< end of branch, showing leaves and position of flowers (X3)) *'. outline of transverse section of leaf (Xio) > 7i bract from base of pedicel (Xs)- Of the ten species that have been referred to Cassiope, seven are still referable to the genus as here restricted, two are referable to Harrimanella, and one must be excluded from both. The species of true Cassiope are distinguishable by their vegetative characters alone, as indicated in the following key : Key to the Species of Cassiope, based on Leaf Characters. Leaves with a deep channel on the back. Leaf margins with a few coarse bristles. C. ericoides (Pall.) D. Don. Leaf margins pubescent or fimbriate, but without bristles. Proc. Wash. Acad. Sci., December, 1901. 572 COVII.LE Leaves with scattered pubescence on the back and margins, but without membranaceous or fimbriate margins or a terminal bristle C. tetragona (L.) D. Don. Leaves without hairs or fimbriae except on the margins or in the furrow. Leaves with persistent white membranaceous fimbriate margins connecting with a terminal acumination. C. fastigiata (Wall.) D. Don. Leaves with the marginal fimbria: early deciduous, a slender terminal bristle persistent. C. selaginoides Hook. f. & Thom. Leaves not channeled on the back. Leaves not ciliate C. mertensiana (Bong.) D. Don. Leaves more or less ciliate on the margins or at the apex when young. Leaves shining, armor-like, without white margins. C. redoivskii (Ch. & Schl.) G. Don. Leaves dull, with white margins. C. lycopodioides (Pall.) D. Don. Of these species one, tetragona^ is circumpolar, two, fastigiata f 4 k Fig. 65. Cas.s.iope lycopodioides. a, flower, with part of calyx and corolla cut awayCXs); ^^ fruit (X-); <"i longitudinal section of fruit (X-)) ^> end of branch, showing leaves and position of flowers (X3) » «) outline of trans- verse section "^ of leaf (Xio); /< bract from base of pedicel (Xs)- and selaginoides^ are Himalayan ; two, ericoides and redoivskii^ be- long to eastern Siberia ; one, lycopodioides^ extends from Alaska to Fig. 64. Cassiope tetragona. «, flower, with part of calyx and corolla cut away (X5); ^, fruit (X2); c, longitudinal sec- tion of fruit (X2); d, end of branch, showing leaves and position of flowers (Xs); ^1 outline of transverse section of leaf (Xio) ; y, bract from base of pedicel (X5)- HARRIMANELLA, A NEW GENUS OF HEATHERS 573 Japan ; and one, 7nertensiaiia^ is confined to northwestern North America. Three species of Cassiope, therefore, are found on the American continent, tetragona^ lycopodioides^ and mertensia7ia. The species which must be exchided from both Cassiope and Harri- manella is C. oxycoccoides Gray.* Our whole knowledge of this plant is based on a single flowering twig 43 mm. long, collected by Dr. Leonhard Stejneger August 22, 1SS2, on the northern shore of Bering Island, off the east coast of Siberia, on "a rounded hill, about 300 feet high, just behind the fishing settlement of Saranna." An examina- tion of the specimen, which is in the Harvard University Herbarium, shows that it differs in various ways from both Cassiope and Harri- manella. Its leaves are situated in whorls of three and very closely resemble broad ^leaves of Cha7naecistiis froctimbeiis. They are, however, smooth on the back between the midrib and margin and they have an apical gland similar to that of Vaccbtiiim vltisidaea. The three pentamerous flowers are borne on short bibracteolate pedicels in a tribracteate umbel on a short terminal peduncle. The calyx does not differ from that of Harrimanella, while the corolla is of the urceo- late short-lobed form found in Cassiope. The style is cylindrical as in Cassiope, but the stamens differ from those of both Cassiope and Harrimanella. In both these genera the pollen pore, the two awns, and the point of attachment of the filament are close to the apex of the anther, but in the plant under consideration the filament is attached to the base of the anther, only the two awns and the pollen pores being apical. Although the fruit is unknown, the whorled character of the leaves and the structure of the stamens give reason for a surmise that the plant belongs to the Ericeae instead of the Andromedeae. Appar- ently, however, it is not congeneric with any known species of the Ericeae. Its corolla is not chartaceous ; it is a depressed plant barely projecting above the mosses and lichens among which it grows ; its leaves have peculiar apical glands ; and it is geographically isolated from the rest of the Ericeae, none of which are known from either northeastern Asia or northwestern America. I venture to propose for it the generic name Arcterica, the whole name being Arcterica oxycoccoides (Gray). It is greatly to be desired that future travelers visiting Bering Island procure a good series of both flowering and fruiting specimens of this rarest of plants. The two Cassiopes which are now referred to Harrimanella may be distinguished as follows : 'Gray, Proc. Am. Acad. 20: 300. 1885 (Jan. 26); GrayMn Stejneger, Proc. * U. S. Nat. Mus. 7 : 534. 1SS5 (Jan, 27). 574 COVILLE Key to the Species of Harrimanella. Leaves divergent, linear to linear oblong, obtuse or broadly acute at the apex, the margins somewhat erose but not serrulate ; peduncles in flower barely or not at all exceeding the leaves, in fruit about twice as long; corolla about 6 mm. long; capsule commonly about 4, sometimes 5, mm. in diameter H. stelleriana. Leaves loosely appressed, lanceolate-subulate, acute, minutely serrulate on the margins ; peduncles few to several times as long as the leaves in both flower and fruit ; corolla commonly 4 to 5 mm. long ; cap- sule about 3 mm, in diameter H. hypnoides. Harrimanella stelleriana (Pall.). SVNOXVMY. Andromeda stelleriana Pall. Fl. Ross. 12 : 58. 1788. Erica stelleriana Willd. Sp. PI. 2 : 387. 1799. Andromeda empetri/olia Martens ; Bong. Mem. Acad. Petersb. vi. Math. & Nat. 2 : 153. 1831. Bryanthus stelleri'D. Don, Edinb. New Phil. Journ. 17 : 160. 1834. Menziesia stelleriana Fisch. ; Hook. Fl. Bor. Am. 2 : 37. 1834. Cassiope stelleriana DC. Prod. 7: 611. 1839. Earlier Illustrations. Pallas, Fl. Ross. t. 74. f. 2. 1788, as Andromeda stelleriana. Hooker, Fl. Bor. Am. /. iji. 1833-40, as Andromeda stelleriana. Harriman Alaska Exped. 1 : 32. 1901, as Cassiope stelleriana. Distribution. The original specimens of Harrimanella stellcriaiia were collected in eastern Siberia by Steller, probably on Bering Island. The species has since been collected from Kamchatka southward to the mountains of northern Japan, but apparently does not extend on the Asiatic continent far from the Pacific. In America it occurs from Unalaska eastward and southward along the whole coast of Alaska through British Columbia and as far as Mount Rainier in the Cascade Moun- tains of Washington. Toward the north, as in Prince ^V"illiam Sound, it sometimes descends to sea level but ordinarily it grows near timber line or in the upper elevations of the forest within a thousand feet of timber line. On Mount Rainier it has been collected at an elevation of 5,500 feet. General Remarks. We first saw this plant, on the Harriman Expedition, at the summit of White Pass, Alaska, where it grew with the crowberry {Etnpe- trum nigrum^ and reindeer moss ( Cladonia raftgiferina^ that car- peted the mountain slopes at timber line. On the east side of Muir Inlet, in Glacier Bay, at a point about six miles below the end of HARRIMANELLA, A NEW GENUS OF HEATHERS. 575 Muir Glacier, we found it again, growing at an elevation of about 2,000 feet in the rather open forests of black hemlock ( Tsuga iner- tensiatia). At this time, June 12th, it was not quite in flower. The first flowering specimens were found June i6th on Mount Verstovia, near Sitka. The plant occurred in abundance from an elevation of 3,400 feet to the summit, and one patch was seen on an exposed ridge at about 1,500 feet. Near sea level on the west shore of Yakutat Bay on the glacial gravels half covered with vegetation was seen a single yellowed plant with pale whitened flowers, doubtless the prod- uct of a stray seed from the mountains above. At various points in Prince William Sound the plant grew in great profusion and was in full bloom at the time of our visit, June 24th to 29th, occurring on the mountain slope back of Orca among the dwarfed black hemlocks at 1,300 to 1,600 feet, in Port Wells, and in Columbia Fiord. This is the plant that lead Mr. Gilbert to adopt the name Heather Island for the rocky, mossy, scantily timbered island that stands in Columbia Fiord immediately in front of the Columbia Glacier. On this spot, chilled by the cold current of air flowing down from the great glacier, grew this and other arctic-alpine plants in profusion all the way down to sea level. On a timbered nunatak rising from the glacier about eight miles from its front the plant occurred to an elevation of about 3,000 feet. On the mountains at the head of English Bay, Kadiak Island, it was flowering abundantly at 1,500 to 3,000 feet. It was found on the Alaska Peninsula at Kukak Bay by Mr. Kearney and at Chichagof Bay by Mr. Palache, at an elevation of about i ,000 feet, and sparingly on the Shumagin Islands by Mr. Kincaid and Mr. Saunders at the same altitude, flowering till the middle of July. Harrimanella hypnoides (L.). Synonymy. Andromeda hypnoides L. Sp. PI. i: 393. 1753. Cassiope hypnoides Y). Don, Edinb. New Phil. Journ. 17: 158. 1834. Earlier Illustrations. LiNN^us, Fl. Lapp. t. I. f. j>. 1737, as Andromeda hypnoides. Oeder, Fl. Dan. /. 10. 1761, as Andromeda hypnoides. Pallas, Fl. Ross. /. 73./ 2. 1788, as Andromeda hypnoides. Curtis, Bot. Mag. t. 2qj6. 1829, as Andromeda hypnoides. Engler & Prantl, Nat. Pfl. 4I : /. 12. A. 1889, as Cassiope hypnoides. Distribution. The plant on which Linnaeus based his description came from the mountains of Lapland, but the species is now known to occur in arctic 576 COVILLE or arctic-alpine situations from the Ural Mountains westward through northern Europe, Iceland, and Greenland to the American continent on Fig. 66. Harrimanella hypnoides. a, flower, with part of calvx and corolla cut away ( X S) ; *. fruit ( X 2) ; c, longitudinal section of fruit ( X 2) ; d, end of branch, showing leaves and position of flower ( X 3)- the western side of Baffins Bay, and thence southward through Labra- dor to the high mountains of Quebec, New England, and New York. The species is not known to occur in Siberia, Alaska, or central and western British America. PROCEEDINQS WASHINGTON ACADEMY OF SCIENCES Vol. Ill, pp. 577-600. December n, 1901. PRELIMINARY REVISION OF THE PUMAS (FELIS CONCOLOR GROUP). By C. Hart Merriam. The Pumas or Cougars form a strongly marked group, easily distinguished from the other Cats by the following characters (taken collectively) : size large ; build slender ; head relatively small; tail long ; body without markings (except in the very young) . They are confined to America, where they range from southern Patagonia northward over nearly the whole of South and Central America, Mexico, and the United States, and reach their northern limit in southern Canada (Ontario in the east; British Columbia in the west). During the past centur}^ their range in the United States has become greatly restricted and over large areas they have been exterminated by man. They are not now known to inhabit New England, with the possible exception of the Green Mts. of Vermont, though formerly found In Vermont, Massachusetts, Connecticut, and Rhode Island. In the State of New York they were killed in the Catskills within the memory of our fathers, and in the Adirondacks, where until recently they were fairly common, a few probably still exist. They still occur in Florida and in the lowlands of Louisiana, but in other parts of the United States are rather strictly confined to mountainous regions.^ Pumas w^ere known to the early naturalists, and in 1771 Lin- neeus named the Brazilian species I^clis concolor. From time to 1 Their distribution by States was carefully worked out by Dr. F. W. True in 1889 — Report U. S. National Museum for 1889, pp. 595-600, 1891. Proc. Wash. Acad. Sci., December 1901. 577 578 MERRIAM time other names were proposed, some deliberately intended to replace Linn^eus's concolo)-, others to distinguish forms belong- ing to particular regions. But for a long time the name concolo?' was used in a collective sense for the entire group and this prac- tice has prevailed until very recently. In 1896 Cory recognized the Florida Puma as distinct from concolor ; and in 1897 I de- scribed as new two forms from the west — one from the northern Rocky Mountains ; the other from the northwest coast region. Of late the belief has spread that several quite different animals were concealed under the name concolor^ but the absence of suf- ficient material for comparison has delayed the revision of the group. Recently the Hon. Theodore Roosevelt, President of the United States, presented to the U. S. Biological Survey a series of 12 skulls of the Rocky Mountain Cougar or Mountain Lion, taken from animals killed by him in Colorado in January and February of the present year (1901).' The examination of these skulls led to comparisons with skulls from other localities, and graduall}^ to a study of such specimens from various parts of North and South America as could be easily brought together. The more important conclusions resulting from this study are here recorded. The Roosevelt series of skulls is of unusual value, not only because each skull is accompanied by precise data giving the color, measurement and weight of the animal from which it was taken, but also and more particularly because the study of so large a series from a single locality shows the nature of the differences resulting from sex and age, affords an index to the kind and quantity of individual variation, and sets a standard for comparison with other members of the group — thereby furnish- ing a means of estimating the probable value of particular cranial or dental peculiarities observed in single skulls from re- mote regions. A discussion of the variations presented by the Roosevelt 'Since this paper was written Mr. Roosevelt has published, in Scribners \tagazine (October and November, 1901), an account of his Colorado Cougar hunt, in the course of which he discusses the habits of Cougars in general. His article is by far the most noteworthy contribution thus far made to the life history of these animals. REVISION OF THE PUMAS 579 series, with a detailed table of measurements of the skulls, will be found under the species to which they belong — Felts hippo- lestes. It may be stated here however that the limits of varia- tion for adults of each sex fall within surprisingly narrow bounds. This points toward stability in the characters presented by other species of the group. In this connection I may be permitted to state what I believe to be a general law (confirmed by critical studies in most groups of North American mammals), namely, that completely differentiated types (specific or sub- specific) from the areas where the typical forms occur, show relatively little individual variation, while the intergrades con- necting such types, and also local forms not yet completely established, show a wide range of individual variation. Specific characters in some groups are shared equally by the two sexes, but this is not the case with the Pumas, for these animals conform to the rule among the Carnivora that the male is the larger and more highly developed. The male Puma is much larger and more powerful than the female, the skull and teeth are much larger and more massive, and, what is still more important, the male alone attains complete specific differentia- tion. By this is meant that the distinctive cranial characters of the various forms are onl}^ fully developed in the males, skulls of females resembling each other so closely that in several cases they are distinguished with difficult}' . While the skulls of the several members of the group bear a strong general resemblance to one another, marked differences exist, chiefly in the proportions of the several parts. The most conspicuous of these are in the degree of elevation or depres- sion of the face and frontal region, the extremes of which are presented by Fclis -patagonica of the Southern Andes and F. olyinpus of the Puget Sound region. In Fclis patagonica the skull is long and low, the face slopes strongly backward, the orbital process of the jugal rises only slighth^ above the body of the bone, the frontal region is depressed and flattened, and the highest part of the cranium is behind the postorbital processes. In F. olyniptis the face rises abruptly, the orbital process of the jugal rises strongly and suddenly, the frontal region is highly elevated and swollen, and the highest part of the cranium is in 580 MERRIAM front of the postorbital processes, the resulting physiognomy be- ing widely different from that of F. -patagonica. Other important differences occur. The massive skulls of F. htppolestcs and olympiis, with their heavy powerful under jaws, contrast strongly with the relatively thin and light skull of F. concolor, with its small and slender jaw ; and the huge canines and carnassials of F. -puma contrast strikingly with the slender and light corresponding teeth of F. bano-si. Of the teeth, the carnassials furnish the most valuable char- acters, and in distinguishing the species the upper is of service more often than the lower. The significant variations in the upper carnassial are in the length, breadth, form of outer side, relative size of the cusps, and degree of development of the inner tubercle or protocone. The tooth as a whole is largest in F. puma, smallest in F. bangs/'. In F. concolor the outer side of the crown (as seen from below) lies in two planes which meet and form a prominent obtuse angle opposite the interspace be- tween the middle and posterior cusps (paracone and metacone). In most species the outer side of the tooth is concave at this point and the angle is carried much farther back (usually to the middle of the metacone) and is less prominent. The inner tubercle or protocone varies somewhat in specimens from the same region, and shows important differences when specimens from different localities are brought together. It is largest and most distinct in a voung male Fclis puma from Santiago, Chile (No. 36851 U. S. National Museum), while in specimens oi F. puma pcarsoni from the coast region of Patagonia it is nearly obsolete, the inner side of the front part of the tooth sloping down to the inner root very gradually (as in No. 20918, U. S. National Museum). In F. hippolcstcs it is large and promi- nent ; in aztccus it is moderately developed ; in olympus it is still smaller [in some specimens nearly obsolete], and \\\ concolor from Brazil, bangsi from the northern x\ndes and Costa Rica, and coryi from Florida, it is only slightly developed. Most of the Cougars present two color phases, independent of season. One of these is usually redder than the other. Thus at any time of year the animal of the Puget Sound region i^F. olympus) may be ' red ' or ' brown ' — both of these terms, it must REVISION OF THE PUMAS 58 1 be understood, giving an exaggerated idea of the real color and of the difference between the two. On Vancouver Island, ac- cording to John Fannin, Curator of the Provincial Museum at Victoria, the brown pelage is the common one ; the red pelage rather rare. On the mainland the red is more common. In the case of the Rocky Mountain species [hippolestes), according to Roosevelt, the colors designated as ' red ' and ' blue ' are equally- divided, 6 of each being recorded among the twelve animals killed by him in midwinter in Colorado. A curious semi-pathological condition is common in skulls of Pumas from widely separated regions, namely, a tendency to cleft palate, consisting in a complete perforation of the palatine bones on or near the middle of the roof of the mouth This per- foration is usually bifurcate anteriorly and often measures lO mm. or more in length. It is present in 6 out of the 12 skulls of the Roosevelt series from Colorado, in 5 out of 10 skulls in the Biological Survey Collection from Mexico, and in odd skulls from Arizona, Florida, and Vancouver Island. For the loan of material additional to that in the collection of the Biological Survey I am indebted to Dr. J. A. Allen, Curator of Mammals and Birds in the American Museum of Natural History, New York; Outram Bangs, Curator of Mammals, Museum of Comparative Zoology, Cambridge, Mass. ; Gerritt S. Miller, Jr., Assistant Curator of Mammals, U. S. National Museum, and Dr. Edgar A. Mearns, U. S. A. I wish particu- larly to acknowledge the generosity of Outram Bangs, who has sent me for description two new forms obtained by his collector in tropical America. In addition to these the only specimens of the Florida Puma I have seen are those in the Bangs collection. In searching the literature for names that have been given to members of the group, I have been greatly aided by my assist- ant, Wilfred H. Osgood. The number of specimens available at the present time is too small, and the gaps in their distribution are too great, to admit of anything like a complete and satisfactory study of the group, or to permit the ranges of the several forms to be mapped. The species and subspecies I am led to recognize, with their type localities, are : 582 MERRIAM Felis cougitar Kerr. Pennsylvania. JPelis coryi Bangs. Florida. Fell's hippolestes Merriam. Wind River Mountains/ Wyoming. Pelts hippolestes olympiis Merriam. Olympic Mountains, Wash. Felis hippolestes aztecus nob. Colonia Garcia, Chihuahua, Mexico. Fclis bangsi nob. Colombia, South America. Felis bangsi costaricensis nob. Chiriqui, Panama or Costa Rica (boundary in dispute) . Felis concolor Linn. Brazil. Felis p7ima iSIolina. Chile. Felis putna patagoJiica nob. Base of Andes (latitude 47° 30' S.). Patagonia. Felis puma pca7-so?ii Thomas. Coast of Santa Cruz, Patagonia. FELIS COUGUAR Kerr. Adirondack Cougar ; Panther. Fills co7tgiiar KV.KV., AnxrmX Kingdom, p. 151, 1792, Felis pe7insvlvanica Link, Beitrage zur Naturgesch., 11, p. 90, 17^5. Fclis co7icolor Merriam, Mammals of Adirondacks, pp. 29-39, 1882 (habits). Felis ore(^07ie7tsis hippolestes Miller, Bull. N. Y. State Museum, No. 38, vol. VI II, p. 124, 1900. Type locality. — Pennsylvania. Geographic dist7'ibiitio7i. — Adirondack Mountains, New York, Green Mountains, Vermont,^ and until recently higher Alleghenies of Pennsylvania, Maryland, and West Virginia, where a few may still occur. Characters. — Size medium , head (apparently) disproportionately small for size of body ; color dull fulvous ; skull smallest of the known species. Color. — "Body and legs of a uniform fulvous or tawny hue . . . Ears light-colored within, blackish behind. Belly pale reddish or reddish white. Face sometimes with a uniform lighter tint than the general hue of the body." — DeKay.'' Crajiial characters. — Skull smaller and less massive than in any other North American species ; nasals broader and blunter posteriorly than in hippolestes and aztecus., but very much smaller and narrower ' Cougars are exceedingly rare in New England where, so far as now known, thej are restricted to the Green Mountains of Vermont. Professor George H. Perkins, of Burlington, Vt., writes me that panthers were killed in that state in 1870, 1875, 18S1, and 1894, and that hunters believe that a few still exist in the Green Mountains. He tells me further that the one killed in 1S81 was shot in Barnard, Vt., and was a very large animal; it is now in the state collection at Montpelier. During the present fall (1891) according to a Brattleboro news- paper, two men, while hunting ruffed grouse in the town of Andover, suddenly came upon a panther into which they emptied several charges of shot, apparently without serious result. ^DeKay. Mammals of New York, p. 47, 1842. REVISION OF THE PUMAS 583 than in coryi from Florida ; bullae smaller ; basioccipital broader ; teeth smaller and more slender, particularly the large upper premolars (carnassial and pm 1). Remarks. — Felis cougiiar Kerr, from Pennsylvania, although not heretofore recognized, appears to be specifically distinct from its near- est allies. Unfortunately specimens are so exceedingly rare that I have not been able to obtain a skin for comparison v^'ith the other forms of the group, and have examined only two skulls. Both skulls are adult, and both are from the Adirondack Mountains in northeastern New York (one from the east side, Essex County: No. 3811, U. S. National Museum ; the other from the west side, probably Hamilton County: No. 947, Merriam Collection). These skulls are not marked for sex, but as one is larger than the other, and as the upper carnassial teeth present the usual sexual differences in size, I assume that one is a male (3811), the other a female (947). If this assumption is correct, the male is considerably smaller than the male of any other known species, while the female is about the same size as adult females of concolor and aztectis. The skull appears to be smaller in proportion to the size of the body than in the case of any other species. Cranial measurements. — Two skulls from the Adirondacks, as- sumed to be male and female (measurements of female in paren- theses) : basal length 158 (154); zygomatic breadth 135 (128); occipito-sphenoid length 59 (55.5) ; postpalatal length 83 (80) ; inter- orbital breadth 36 (36) ; length of upper carnassial on cingulum 22.5 (20.5). FELIS CORYI Bangs. Florida Cougar. Felis concolor Jloridana CoKY , ' Hunting and Fishing in Florida,' pp. 109-110, 1896. (Name preoccupied.) Felis coryi 'Qx'i^GS, Proc. Biol. Soc. Wash., xiii, pp. 15-17, Jan., 1899. Type locality. — Florida. Characters. — Size large ; color of back deep intense ferruginous. Head large; legs and tail long; feet small (Bangs) ; skull large and rather massive, with enormous nasals. Color. ^ — Upperparts rich intense ferruginous on back (from top of head to tail), becoming dull fulvous on sides, and fading gradually to belly where the hairs are much longer and paler ; inguinal region soiled buffy-whitish ; chin and lips yellowish buffy, becoming fulvous on throat and breast ; ears and spot at base of whiskers black, the ear- ^ The present description is based on a skin and 6 skulls from near Sebastian, Florida, kindly loaned me by Outram Bangs. 584 MERRIAM spot descending to skin of head at base of ear ; tail dark brown with a darker streak along dorsal line, becoming black before reaching tip, which is black all round. Cranial characters. — Skull large and rather massive ; nasals very large, exceeding in length and breadth those of all other North American forms ; sagittal crest long and high ; bullae medium or rather small ; underjaw large and massive. Compared with P. couguar from northern New York the skull is very much larger and heavier (an ad. male having a basal length of 175 and a zygomatic breadth of 152 contrasted with 158 and 135 in an old male from the Adirondacks) ; the sagittal crest (obsolete in cotiguar) long and high and reaching forward to frontal shield; nasals much larger, acutely pointed posteriorly and with a strongly marked hump at juncture of upper and middle thirds; frontals more flattened; bulUe slightly larger ; teeth of the same size or very slightly larger ; underjaw more massive (especially posterior part of horizontal ramus) and more bellied below posterior part of tooth row. Comi:)ared with aziccus, with which it agrees essentially in size, and which is decidedly its nearest relative, it may be distinguished by the following characters: skull as a whole less massive; nasals very much larger and longer, with a distinct angle or hump at junction of upper and middle thirds ; posterior ends of nasals reaching back nearly 10 mm. beyond plane of jjosterior endings of maxillae [in aztccus the nasals and maxilkc end on essentially the same plane] ; sagittal crest higher ; under jaw slightly more bellied below tooth row ; coro- noid process longer and curved more strongly backward ; upper car- nassial larger; middle upper premolar smaller (thinner and weaker) ; lower carnassial slightly larger; first lower premolar smaller and weaker. Re?t2arks. — The Florida Puma differs so markedly from its North American congeners that a glance at either the skin or the skull is sufficient to distinguish it, the intense rusty red of the back and the great size of the nasal bones being characters not shared by any other species. Individual skulls vary surprisingly in zygomatic breadth, as shown in two adult males of nearly equal size from Sebastian, Florida, both in the Bangs collection. One of these has a zygomatic breadth of 152 mm., and is very broad interorbitally. The other has a zygomatic breadth of only 135 mm., and is correspondingly narrow interorbitally. The nasals are largest in the narrowest skull, but are very broad and large in both. REVISION OF THE PUMAS 585 In color the Florida Puma comes nearest to the widely remote F. batigsi costaricensis of Central America, with which it nearly agrees in the red of the back; but the face, legs and feet are grayer (less fulvous), and the tail is very different, being dark brown with a blackish stripe along the median line above ; in bangsi the upper side of the tail is uniform dark reddish fulvous without trace of a dorsal stripe. Measuret7ients. — An adult male [tail and feet measured from dry skin by O. Bangs]: total length 2057; tail vertebrae 760; hind foot 280. An adult female: total length 1918; tail vertebrae 670; hind foot 271. Cranial ineasurements. — Largest of 2 males, and largest of 2 females (females in parentheses) from Sebastian, Florida : Basal length 175 (158); occipito-nasal length 193 (174); zygomatic breadth 152 (123); occipito-sphenoid length 66 (59); postpalatal length 92.5 (82.5) ; interorbital breadth 44 (39) ; length of upper carnassial on cingulum 23.9 (22.8). FELIS HIPPOLESTES Merriam. Rocky Mountain Cougar ; Mountain Lion. Felis hippolestes Merriam, Proc. Biol. Soc. Washington, Vol. xi, p. 219, July, 1897. Type locality. — Wind River Mountains, Wyoming. Characters. — Size largest of the knowni members of the group ; color dull fulvous ; skull large and massive with highly developed sagittal crest. Color. — Upperparts and sides dull pale fulvous brown, dai'kest on middle of back and tail ; tip of tail black ; face from nose to eyes gray- ish brown ; a pale patch over each eye ; back of ears blackish ; chin, lips (except dark patch at base of whiskers), throat, breast, inner side of forelegs, inguinal region, and hinder part of belly soiled white ; under side of tail grayish white. Cranial characters. — Skull largest of the known species ; heavy and massive ; frontal region elevated but less elevated than in males of olympus ; sagittal crest highly developed and arched ; interorbital region broad [interorbital breadth in adult males about 48-50] ; under jaw long, large and massive, somewhat swollen under premolars. Teeth large and powerful, the upper carnassial and 2d premolar much heavier and broader than in aztecus. Skulls of female hippolestes from the Rocky Mountain region are sometimes difficult to distinguish from males of aztecus from Chihuahua. 586 MERRIAM Ret7iarks. — Skulls of Felis hippolestes are not only larger and more massive than those of other members of the group (save olympus) but differ in certain cranial and dental characters. A striking character is the enormous development of the sagittal crest, which in old males is considerably more than half an inch (13 mm. -j- ) in height and strongly arched. In the females it is also well marked though by no means so high. The breadth between the orbits is much greater than in any of the other known forms except Olympics^ which agrees with it in this respect. In adult males of hippolestes the interorbital breadth varies from 47 to 1^0 mm; in adult females from 38 to 41 mm. In Felis aztecus from Mexico, Texas, southern Arizona, and southern Califor- nia, the interorbital region is very much narrower, measuring in adult males fi^om 38 to 41 mm. and in adult females from 34 to 36 mm. Similarly, the breadth across the postorbital processes, though more variable, is much greater in hippolestes^ varying from So to 84 in adult males and from 71 to 76 in adult females. In males of aztecus this breadth varies from 68 to 75 ; in females 65 to 69. The braincase on the other hand is as broad in aztecus as in hippolestes. The upper carnassial and the large premolar in front of it are much heavier and broader in hippolestes than in aztecus., while the length of the crowns is about the same in both. The lower molariform teeth are larger throughout in hippolestes., particularly the lower carnassial, which is conspicuously larger and more massive than in aztecus. REMARKS ON THE ROOSEVELT SERIES OF SKULLS FROM COLORADO. The 13 Cougars or Mountain Lions killed by Mr. Roosevelt near Meeker, Colorado, in January and February 1901, with their accom- panying data as to size, weight, color, and time of breeding, form the most important series thus far recorded and their skulls afford an ex- ceptional opportunity for ascertaining the constancy or inconstancy of particular cranial characters and proportions. The series comprises 3 adult males and 9 females of various ages. All were very fat and had been feeding on deer. The males are much larger than the females and have much larger teeth. One male is a giant, and has the largest skull of any Puma I have seen, surpassing even the type specimen of Felis hippolestes from the Wind River Mountains of Wyoming. In the flesh this animal measured 8 feet in total length from nose to tip of tail, and weighed 227 pounds. Among the females was a young of the preceding 3'ear, which had not yet shed its milk teeth, and which was still following its mother. The full data for these specimens, as furnished me by Mr. Roosevelt, are as follows : REVISION OF THE PUMAS 587 No. Sex. Len Ft. gth.' In. Weight lbs. Color. I 126 21 1086929 juv. 12 129-5 125 105 47 64.5 31 134 47 lOI milk tooth SEXUAL VARIATION. T'/ie skicll. — The above measurements show that the sexual differ- ence in size is greater than is usually recognized, the basal length of the largest male (196 mm.) exceeding that of the largest female (172 mm.) by 24 mm. (about an inch). In the oldest male the ratio of ' Length in straight line, between uprights, from nose to tip of tail. Proc. Wash. Acad. Sci., December, 1901. 588 MERRIAM zygomatic breadth to basal length is 84 (essentially the same as in the type of the species, from the Wind River Mountains, Wyoming) ; in the two oldest females it is about 81.5. The mean interorbital breadth in the males is 46.^ ; in the females 38.7. The sexual differences are well shown in the following table : TABLE OF AVERAGE OR MEAN CRANIAL MEASUREMENTS. Mean of males Mean of females... 190 160.4 01 o 08 n cd>S o cQ *J3 CO ho 6 "= i 155-5 67.5 155-6,130.1; 56-6 99 83.1 3 oj p a I Sol a a ( 05 q ti II7.2 46.5 199 65.5 99.537.8:1685 56.1 P-d ►3 >, 150 24 126.7 21.6 77/^ teeth. — The teeth which show sexual differences to best advan- tage are the canines and carnassials. The diameter of the upper canine (measured on the cingulum) varies in the males from 14 to 15 mm. ; in the females from 1 1^ to 12^ . The length of crown of the upper carnassial varies in the males from 33 to 25 mm. (mean 24) ; in the females from 30.2 to 22.5 (mean 21,6). INDIVIDUAL VARIATION. The skull. — Individual variation in this series is less than was ex- pected. The differences in size of the two perfect male skulls (amount- ing to 12 mm. in basal length and 15 mm. in zygomatic breadth) ap- pear to be attributable to age, the smaller one being a young-adult with practically unworn teeth ; the other a very old male with much worn teeth. In the females, individual variation in size is more marked. The largest and the smallest females are both young-adults with only slightly worn teeth; one has a basal length of 157 mm.; the other of 172 mm. — a difference of 15 mm. The parts of the skull presenting the largest amount of individual variation are the nasal bones, the breadth of frontal across postorbital processes, the breadth of postorbital constriction, and the audital bullae. The nasal bones in the two perfect males measure respectively : length 58 and 53 mm. ; breadth between tops of premaxillae 30 and 29 ; breadth between maxIlUe posteriorly 20 and 16. In 4 of the 8 females the nasals are surprisingly uniform, the length falling beteen 45 and 46 mm.; breadth between points of premaxillte 24 to 26; breadth REVISION OF THE PUMAS 589 between maxillae posteriorly 15-17. In the two oldest females the length of nasals is 44 and 41 mm. The breadth across the postorbital processes in the two males is 84 and 81 — the difference apparently due to age. In the females it varies from 67 to 75 mm., and the skull in which it is only 67 is young and the frontals have not attained the full adult form. In the others it varies from 70 to 75. The postorbital constriction in 6 of the 8 females falls between 40 and 43 mm. In the other two skulls, both of which are very old, this part of the skull is broader, measuring 44.5 in one and 45.5 in the other. In many Carnivores (and other mammals as well) the breadth of the postorbital constriction decreases with age. In the Pumas it appears to increase with age. I am not perfectly sure however that the increased breadth in the two old skulls may not be due to the pres- ence of parasites in the frontal sinuses, as is often the case in the Mustelidas. The bullae are surprisingly constant in size and form throughout the series except in one skull, in which they are greatly inflated. This is the skull of a very old female and is the same in which the postor- bital inflation is greatest, hence there seems to be ground for the sus- picion that in both cases the increased 'size may be the result of dis- ease. In this skull the breadth of the basioccipital is materially decreased by the great size of the bullae, measuring 4 mm. less than in a skull of approximately equal age with normal bullze. A curious feature connected with these skulls is the tendency to cleft palate. One of the males and two of the females have each a large perforation in the middle of the roof of the mouth. This perforation or vacuity extends completely through the palatine bones on the median line, measures 13 mm. in length in two and 10 in the third, and is bifurcate anteriorly, the anterior ends notching the posterior margin of the palatal floor of the maxillary bones on each side of the vomer. Three other females have a complete perforation a little behind the maxillo-palatine suture, but of considerably smaller size. Hence six out of the twelve specimens have the palate com- pletely perforated, and in four of these the perforation is of consider- able size and bifurcate anteriorly. The teeth. — Individual variation in the teeth in the 3 male skulls of the series is small (only i mm. in each direction from the mean) and mainly attributable to the usual wear with age. In the female it is somewhat greater, the extremes in length of crown of upper carnas- sial falling 1.4 mm. below the mean, and reaching 0.9 mm. above the mean. Part of this also may be attributed to wear. 590 MERRIAM FELIS HIPPOLESTES OLYMPUS Merriam. Pacific Coast Cougar. } Felix oregonensis Rafinesque, Atlantic Journal, Vol. I, No. 2, p. 62, 1832. Felis hippolesies olympus Merriam, Proc. Biol. Soc. Washington, Vol. xi, p. 220, July, 1897. [The type specimen proves to be a 9. not a ,? , as marked by collector.] Felis oregonensis Stone, Science, NS., Vol. ix, pp. 34-35, Jan. 6, 1889. Tyfe locality. — Olympic Mountains, State of Washington. Geographic distribution. — Coast region of British Cohimbia, Washington, Oregon and California. Characters. — vSimilar to hippolestes^ but color much darlvcr ; whitish areas of underparts more restricted and less white ; tail decidedly darker (dark all round, not grayish white below), the black tip longer ; nose and face very much darker. Cranial characters. — Skull large and massive ; frontals enor- mously swollen, elevated, narrow, and highly arched transversely, with tendency to the development (especially in young-adults) of a median longitudinal sulcus ; frontals much swollen over postorbital processes and anterior part of orbits. Skull similar in size, massive- ness, and general characters to that of hippolestes, from which it differs in having the facial and frontal regions more abruptly elevated ; the frontals narrower, more swollen, and more highly arched trans- versely, with usually a median longitudinal depression or groove ; nasals with more decided angle or ' hump ' at junction of upper and middle thirds (upper third horizontal, then bent abruptly downward) ; basal part of skull longer, giving greater length to the occipito-sphenoid and postpalatal measurements; pm. y slightly longer; pni. ^ thinner (especially posteriorly) ; pm. ^ thinner. Measuretnents. — Type specimen, 9 ad. (from well made dry skin) : total length 2095 ; tail 775 ; hind foot 260. Cranial ^neasuremeftts. — S yg. ad. from Vancouver Id., B. C, and $ ad. (type specimen) from Olympic Mts., Washington (measure- ments of 9 in parentheses) : Basal length 192 (161. 5); zygomatic breadth 153.5 (^27) ; occipito-sphenoid length 70.'' (60) ; postpalatal length 120.? (97) ; interorbital breadth 45.5 (39) ; upper carnassial 23-5 (22.5)- Respecting the technical name of the Pacific Coast Cougar, a few words may not be out of place : Witmer Stone, in Science of Jan. 6, 1899 (Vol. IX, pp. 34-35), announced that he had recently un- earthed an old name, given by Rafinesque in the Atlantic Journal in the summer of 1832, to a Cougar from western America. This name Mr. Stone adopts for the northwest coast animal in place of the name REVISION OF THE PUMAS 59I olympus given by me in 1S97. He quotes Rafinesque's original de- scription as follows: " i. Var. Oregonensis. Dark brown, nearly black on the back, belly white ; body 6 feet long, 3 high, tail 2 or 3 feet long. A large and ferocious animal of the mountains. Is it not a peculiar species? Felix oregonensis.^^ Rafinesque knew nothing of the animal he attempted to describe. He had never seen a specimen, nor had he ever been within two thou- sand miles of the northwest coast country. Furthermore, his brief de- scription is grossly incorrect, as the animal is not " nearly black on the back," and its belly is not white. In this, as in numerous other cases, his information was obtained from travelers at second or third hand. Who now-a-days would think of proposing or accepting a modern name based on hearsay accounts of travelers and not even ac- companied by the mention of a definite locality ? In cases where the description of an old author leaves no room for doubt as to the species meant, or where a modern author adopts or re- defines an old name, as I have sometimes done myself, its status is of course fixed and not subject to change. But the deliberate displacement of a name based on a definite type specimen from a stated locality and accompanied by an adequate description, in order to replace it by an older name of exceedingly dubious applicability and unaccompanied by either definite locality or adequate description, involves, in my judgment, a fallacious interpretation of our principles of nomenclature. In the case in point, Mr. Stone candidly admits that "no definite locality is given under the description of F. oregonensis^" and it is only by implication that the name can be attributed to the Oregon country. In this connection it should be borne in mind that Oregon in those days embraced not only the present states of Oregon and Washington, but also Idaho, the western part of Montana, and much of British Columbia. In the same paper Rafinesque names another species, Felis macroura, said to be not larger than a cat, "with tail as long as the body, which is from one to two feet long only." Even Mr. Stone admits that " the source of this information is unreliable and the probability is that no such animal existed " ! In the introductory paragraph of his paper Rafinesque says (also quoted by Mr. Stone) : "In addition to the article on our Couguars, page 19 [in which 5 varieties are characterized from Carolina, Green Mountains, Kentucky, New Hampshire, and Pennsylvania] , I have to state that several other varieties of tygers are found in the western wilds of the Oregon mountains, or east and west of them, which de- serve to be noticed. I find in my notes that two other varieties of 592 MERRIAM Couguar have been seen there, and east of the mountains." Hence it appears that Rafinesque, as long ago as 1S32, recognized at least 8 varieties of cougar as inhabiting the United States from Carolina and Kentucky northward. I find no evidence to show that he ever saw a specimen of any of these, his descriptions (if such they may be called) being based wholly on the accounts of hunters and travelers, assisted by his fertile imagination. FELIS HIPPOLESTES AZTECUS subsp. nov. Mexican Cougar. Type from Colonia Garcia, Chihuahua, Mexico. No. 99658 $ ad. U. S. National Museum, Biological Survev Coll. Oct. 17, 1899, H. A. Cluff. Orig. No. 2401. Characters. — Animal large and powerful but decidedly smaller than hippolestes ; general color dull fulvous as in hippolestes^ but tail darker, browner, with longer black tip and no white underneath (much as in olympus) ; ears almost wholly black. Cranial characters. — Skull large and massive, similar in general to that of hippolestes but decidedly shorter ; braincase of same size; frontals narrower interorbitally (the interorbital breadth in adult males averaging about 40 or less instead of 48 or more) ; sagittal crest less highly developed ; upper carnassial teeth lighter and thinner ; lower teeth (particularly the carnassial) smaller throughout. Remarks. — Compared with coryi from Florida the whole animal is very much paler and grayer ; top of head and upperparts generally dull grayish fulvous instead of intense ferruginous ; underparts whiter ; black of ear not extending below actual base of ear ; color of chin and lips very different, being soiled white instead of intense yellowish buff. A skin in the collection of the Biological Survey from Fort Bowie, Arizona, is paler and grayer (less fulvous) than the skins from Chi- huahua, and has the back much more conspicuously mixed with black hairs. The same is true in even greater degree of a skin in the National Museum from Eagle Pass, Texas. The skull of aztecus is considerably smaller than that of hippolestes and may be characterized briefly as short., heavy, and massive, with narrow interorbital region., elevated arched frontals, and well devel- oped sagittal crest — though never so high as in hippolestes. Three skulls of adult males from a single locality, Colonia Garcia, Chihuahua, exhibit a most amazing variation in the size "of the audital bullae, a degree of variation which in most mammals would characterize per- fectly distinct species. In one of these skulls (No. 99660) the bullae REVISION OF THE PUMAS 593 are small, low, and narrow and not of the same size. In another (No. 99659) they are enormously swollen and inflated posteriorly, and rather sharply pointed anteriorly. It is probable that the medium condition shown in No. 99658 is the normal, that No. 99659 is exceptionally inflated, and that No. 99660 has the bullae imperfectly developed. This is the more probable because of the difference in the bullae on the two sides in No. 99660, the left being considerably smaller and less perfect than the right. Measure?nents. — Type (^ ad.) : total length 2268; tail vertebras 731 ; hind foot (from dry skin) 270 ; height at shoulder 731. Average of 3 males from type locality : total length 2074 ; tail vertebrae 77^ ' hind foot (from dry skin) 260; height at shoulder 714. An adult female from type locality: total length 1814; tail vertebrae 630; hind foot (from dry skin) 230 ; height at shoulder 630. Cranial measurements. — Largest of 3 males (the type), and largest of 3 females (female in parentheses) from Colonia Garcia, Chihuahua, Mexico: basal length 171. 5 (149); zygomatic breadth 142 (121) ; occipito-sphenoid length 60 (53) ; postpalatal length 91 (76.5) ; interorbital breadth 41 (36.5) ; upper carnassial 22 (20). FELIS CONCOLOR Linn. Brazilian Puma. Felis concolor Linn^us, Syst. Nat., ed. xii, Addendum to Vol. iii, Mantissa Plantarum, p. 522. 1771. Type locality. — Brazil (probably southeastern Brazil). Characters. — Size medium ; color apparently yellowish fulvous ; cranial and dental characters distinctive. Color. — The original diagnosis by Linnaeus is merely " cauda elon- gata, corpore immaculato fulvo." It is based mainly on Brisson, who states that the color is reddish yellow. Burmeister (whose description is apparently of a specimen from Neu-Freiburg, southeastern Brazil) gives the color as rather pale reddish yellowish gray ; with throat, chest and inner sides of arms and thighs pure white ; belly yellow ; outside of ears blackish brown with a yellowish spot ; tip of tail blackish brown. (Thiere Brasiliens, Saugthiere, pp. 88-89, 1854). Cranial characters.^ — Skull of medium size, thin and light com- pared with the North American and Chilean species ; face and frontal ' The present description is based wholly on two skulls from Brazil in the col- lection of the Biological Survey: an adult male, No. 100118 from Piracicaba, Sao Paulo ; and an adult female without particular locality. For both I am in- debted to the courtesy of Prof. Herman von Ihering. The male when young had suffered some injury to the top of the head, in the posterior frontal region, as if he had been dealt a blow with a machete. The resulting deformity may have pre- vented the development of the sagittal crest. 594 MERRIAM region elevated and set forward ; ascending arms of maxillje much more nearly vertical than in J^. puma; interorbital region rather broad ; sagittal crest absent or only slightly developed ; nasals short, broad and blunt posteriorly ; no pit in frontal over apex of nasals [present in all other species] ; suture between basi-sphenoid and pre- sphenoid closed in adults ; presphenoid very broadly exposed, its base broader than in any other species ; pterygoid wings correspondingly re- duced ; under javj srnall, light afid straight^ not enlarged or swollen beneath the teeth ; symphysis shorty truncate, and more anterior than in the other species ; bullae rather large ; ratio of zygomatic breadth to basal length in an ad. ^ 80; teeth rather large; upper carnassial distinctive, having a well-marked salient angle on outer side between middle (paracone) and posterior (metacone) cusps, which is not pres- ent in any other species. Compared with F. batigsi from Colombia and Peru, the skull of concolor is larger ; f rontals decidedly more elevated ; bulhe larger ; teeth, particularly carnassial and middle upper premolar, larger ; upper car- nassial with a salient angle on outer side as already described. Com- pared with F. puma from Chile the skull as a whole is lighter, frontals more elevated; 2d premolars, above and below, very much smaller; crown of lower carnassial much shorter and more swollen. (For more detailed comparison see under F. puma.) Compared with the North American members of the group, Felis concolor irovn Brazil differs markedly in cranial characters. The skull as a whole is lighter, the braincase thinner and more smoothly rounded, and in the specimens at hand devoid of sagittal crest. The nasal bones are more bluntly truncate posteriorly than in any skulls I have seen from Mexico or the United States, and the pit at point of junction with the frontal bone is absent. The presphenoid, viewed from below, is much more broadly exposed, and the pterygoid wings are correspondingly shortened. The under jaw is straighter and lighter than in any of the North American forms and lacks the usual swelling beneath the teeth ; the lower border of the ramus is slender, narrow, and straight ; the symphysis is shorter, more anterior, and more truncate. In an adult male from Sao Paulo, Brazil (No. 1001 18) the bullae are enormously inflated and the inflation is much broader than in any others I have seen. The only approach to it is in a specimen from Colonia Garcia, Chihuahua, Mexico (No. 99659), in which the posterior part of the bulla is greatly swollen, but the anterior part is abruptly narrowed. The skull in question from Colonia Garcia is abnormal in this respect, the bullae being strikingly larger than in other specimens from the same REVISION OF THE PUMAS 595 locality. The large amount of individual variation in the bullae leads me to distrust their reliability as affording characters. Their great size in the Sao Paulo specimen may be abnormal. Cranial measurements. — An adult Z (No. 100118 U. S. N. M.) from Sao Paulo, Brazil, and a yg-ad. $ from Brazil (exact locality un- known— the 9 in parentheses): Basal length 171 (141); zygomatic breadth 139 (112) ; postpalatal length 88. 5 (72) ; interorbital breadth 41 (31) ; upper carnassial 23.5 (22). FELIS BANGSI sp. nov. North Andean Puma. Type from Dibulla, Colombia, South America. No. 8413 $ ad. Bangs Collection. October 8, 1899. W. \V. Brown, Jr. Characters. — Size medium; pelage (in type specimen) short and rather coarse ; color I'usty or reddish fulvous ; skull rather light ; teeth smallest and slenderest of the known species. Color. — Upperparts from head to tail ferruginous, not noticeably mixed with black hairs and rather narrowly confined to top of back, shading to dull fulvous on sides ; the fulvous becoming still paler on belly, throat, legs, and feet ; inguinal and pectoral regions whitish ; chin and lips buffy white, the upper lip posteriorly suffused with pale dull fulvous ; ears blackish except at extreme base ; tail above ferrugi- nous, becoming dark rusty brown, but without trace of dark median stripe ; below grayish brown, the dark brown underfur showing through ; tip black, and in the type specimen indistinctly annulated, there being an incomplete blackish ring above the tip, preceded and followed, on the sides, by grayish fulvous intervals. Cranial characters. — Skull of medium size and rather light ; sagittal crest in male, high where it ci^osses occipital sulcus, and con- tinuing in a low ridge to frontals ; frontals not elevated and rather flattened; nasals (in type specimen) moderately broad and obliquely truncate posteriorly ; females without trace of sagittal crest except across occipital sulcus ; bullae and basisphenoid normal. Teeth smaller than in any other known species ; canines very slender ; upper car- nassial in adult male measuring only 22 mm. Sexual differences in size unusually marked, both in skull and teeth. Skull similar in gen- eral to that of concolor ixovci Brazil, from which it differs in flatter and lower frontals, presence of distinct sagittal crest (in adult male) , smaller bullae ; narrower exposed base of presphenoid ; persistence of sphenoid suture ; much more slender canines, smaller and narrower premolars and carnassials, and absence of outer angle on upper car- nassial (the place of this angle being concave). Compared with F. 596 MERRIAM puma from Chile, the skull is smaller (particularly shorter') and much less massive ; anterior base of coronoid process much less broadly ex- panded ; teeth strikingly smaller throughout — the difference much more marked than in the comparison with co?tcolor. Remarks. — Mr. Bangs has sent me two skins with skulls from Colombia. One (the type) is an adult male collected October 8 at Dibulla; the other an adult female collected February 15 in the Santa Marta Mountains. The Santa Marta specimen has narrow ' pinched in ' nasals (the posterior two-thirds abruptly narrower than the anterior third), and differs so strikingly in pelage and markings as to suggest the possibility that it may be subspecifically distinct — a high mountain form perhaps. The ears appear to be longer. The pelage is long and full and has a very different appearance from that of the short smooth coat of the Dibulla specimen. The rusty dorsal area (from head to tail) is broader and darkened by profuse admixture of black hairs ; dull fulvous of sides also strongly mixed with black hairs ; ferruginous of tail continues to black tip ; tip not annulated ; whitish of under- parts much whiter and much more extensive, completely covering inner sides of legs and in foreleg reaching continuously to pads on vmderside of foot ; outer sides of forelegs and feet grayish fulvous in- distinctly vermiculated with brownish. Two skulls from Peru, in the American Museum of Natural History, appear to be young-adult males of this species. Measurements. — (Female ad. no. 8147 Bangs Coll., from Santa Marta, Colombia, measured in flesh) : Total length 1600 mm. ; tail vertebrae 610; hind foot 225 ; ear 80. Cranial measurements. — An ad. $ (the type) ; and an ad. $ (in parentheses) from Santa Marta Mountains, Colombia, both in the Bangs Coll. Basal length 162 (141) ; occipito-nasal length 173 (151) ; zygomatic breadth 128 (i 15) ; occipito-sphenoid length 60 (50) ; post- palatal length 85 (72.5) ; interorbital breadth 37 (31.5) ; upper car- nassial 22 (20). FELIS BANGSI COSTARICENSIS subsp. nov. Central American Puma. ; Type from Boquete, Chiriqui, Panama (or Costa Rica — the province of Chirqui being claimed by both countries). No. 10118 9 ^d. Bangs Coll. April 22, 1901. W. W. Brown, Jr. Characters. — Similar to F. bangsi but color very much darker and redder, particularly on the belly which is red like the sides, with only an indistinct narrow whitish line down the middle, barely connecting the whitish pectoral and inguinal areas ; fur between foot pads black. REVISION OF THE PUMAS 597 Measurements . — (Type specimen, 9 ? measured in flesh) Total length 1680 mm. ; tail vertebrae 6S0; hind foot 220; ear 75. Remarks. — The U. S. National Museum contains two skins from Costa Rica, presented by the World's Fair Costa Rica Commission in 1893. In both of these the whitish pectoral and inguinal regions are suffused with dirty yellowish brown, which may be due to immersion in pickle. The skull of one of these (the female, No. 61 193 U. S. National Museum) agrees essentially with the skull of the type speci- men except that the nasals are longer, and with the female bangsi from the Santa Marta Mountains, except that the nasals are not narrowed as in that specimen. The skull labeled as belonging to the skin of the male (No. 61 194) has the middle upper premolar and carnassial greatly swollen and presents other characters which lead to the suspicion that it really has nothing to do with this skin, but probably came from some other region. This view is the more probable since the skull of a fully adult male from Pacuare, Costa Rica (No. 15967 U. S. Nat. Mviseum) agrees closely with the type specimen of batigsi (a male from Dibulla, Colombia) and, allowing for normal sexual differences, with the female from Costa Rica. In this connection it may be stated that the lower carnassials in females of bangsi and costaricensis are surprisingly small. FELIS PUMA Molina. Andean Puma. Felis puma Molina, Saggio sulla storia Naturale del Chili, pp. 295-297, 1782. Type locality. — Chile. Characters. — Size large ; color gray or grayish instead of fulvous. According to Molina the animal has a mane. Skull and teeth large and massive. Color. — Upperparts " ash-colored with a sprinkling of yellowish . . . underparts whitish." — Molina. The skin of the head of a speci- men from Santiago, Chile (No. \%\%\ $ young, U. S. Nat. Museum) has the nose and face brownish gray, becoming pale dull fulvous on top of head ; upper eyelid, lips and chin yellowish white ; ears grayish, mixed with black hairs at base and toward tip but without distinct dark spot ; a small blackish streak on upper lip just below whiskers ; occiput and back of neck dull grizzled grayish fulvous. Cranial characters. — Skull and teeth large and massive; 2d pre- molar, above and below, much larger than in any other known species of the group; inner tubercle (protocone) of upper carnassial very large. The skull of a young male from Santiago, Chile (No. 36851 U. S. National Museum), contrasted with an adult male of concolor from 598 MERRIAM Sao Paulo, Brazil (No. 100118U. S. National Museum, Biological Survey Coll.) presents the following differences : nasals more angular posteriorly (less bluntly truncate) ; bullae smaller; basioccipital broader between bullae ; premaxillae more swollen over canines (owing to larger size of these teeth) ; presphenoid much narrower posteriorly between wings of pterygoids ; suture between presphenoid and basi- sphenoid not closed ; under jaw more massive and more swollen under tooth row ; basal half of anterior border of coronoid process much more broadly expanded transversely ; upper incisors and canines much larger and heavier; middle upper premolar and lower premolars larger ; body of upper carnassial thinner and lacking the external angle of concolor (the part occupied by the angle in cowco/or being concave) ; inner tubercle (protocone) very much larger than in any other Puma 1 have seen ; posterior end of crown of middle upper premolar curved strongly outward ; 2d lower premolar much broader posteriorly ; and nearly twice as massive as in coitcolor ; lower carnassial with anterior blade more flattened or ' dished ' on outer side ; upper molar twice as large as usual (crown 10 mm. in length). Remarks. — The skull from Santiago, Chile (36851), on which the present description is based, is not full grown (evidently in second year) , and the cranial characters are not full}- developed. The dental characters, however, are shown to unusual advantage, the teeth being unworn. The most noteworthy tooth characters are the enormous size of the 2d upper and lower premolars and upper molar, and the large size of the inner tubercle (protocone) of the upper carnassial. The upper carnassial measures 24 x 12.S mm. The skin of the head and neck of this specimen differs from the type of J^. puma patagon- ica from east base of Andes, Patagonia, in having the face and head darker and browner (quite different from the clear gray of patagonica) ; neck decidedly moi^e fulvous ; ears without distinct markings. FELIS PUMA PATAGONICA subsp. nov. South Andean Puma. Type from east base of Andes, Patagonia (lat. 47° 30'). No. 108693 [ (?yg-ad.] U. S. National Museum, Biological Survey Coll. 1899. J. B. Hatcher. Characters. — Size large ; color gray ; black of ears nearly obsolete ; skull and teeth large and massive ; frontals low (depressed contrasted with concolor and the North American forms) , giving the cranium an appearance of unusual length ; tooth characters distinctive. Color. — Upperparts ash gray, everywhere abundantly mixed with REVISION OF THE PUMAS 599 black hairs, the median dorsal region from top of head to end of tail suffused with buffy ; belly buffy gray, the hairs much longer than on the back ; pectoral and inguinal regions soiled whitish ; throat gray ; chin and lips white, the posterior part of upper lip and cheeks suffused with buff; patch at base of whiskers gray (instead of black) ; rest of face gray, except a buffy streak above and below the eye ; backs of ears gray, with apical third and a faint basal band dusky ; feet buffy gray ; tail pale buffy fulvous above, ash gray below, with only the ex- treme tip dusky. Cranial characters. — Skull massive, elongate; facial and frontal regions low and narrow ; interorbital region narrow ; nasals rather broad posteriorly and obliquely truncate ; sagittal crest low, contin- uous to frontal shield ; bullae rather large ; postpalatal notch broad ; the palatal margin nearly straight ; presphenoid normal. Canines large (the upper ones 14.5 mm. in diameter) ; crowns of premolars and carnassials long ; upper molar small (as usual in the group) ; inner cusp (protocone) of upper carnassial very small. Compared with the skull of JF. puma from Santiago, Chile, the following tooth differ- ences are conspicuous : crown 2d upper premolar larger and thinner ; crown of upper carnassial longer, with inner tubercle greatly reduced ; upper molar small (less than half the size of this tooth in puma') ; 2d lower premolar smaller (decidedly less swollen) ; lower carnassial de- cidedly larger. Compared with an old male concolor from Sao Paulo, Brazil, the facial and frontal regions are very much lower ; frontals flatter ; bullge smaller ; presphenoid narrower ; sphenoid suture distinct ; postpalatal notch broader ; sagittal crest present ; under jaw more massive, the sym- physis much longer ; canines much larger ; crown of second upper pre- molar much longer and narrower ; crowns of upper and lower carnas- sials (particularly the lower) decidedly longer ; crowns of lower premolars longer, the 2d much more swollen posteriorly. Re?>iarks. — Compared with the skin of a head of I^. puma from Santiago, Chile, the color of the corresponding parts in patagonica is lighter and everywhere much grayer (less brownish and without fulvous cast) ; ears with distinct dark markings at base and tip ; upper lip with only a trace of the dark mark below whiskers ; lips and chin whiter ; light band on under eyelid much broader and purer. Compared with subspecies pearsoni Thomas, the general color is much paler and grayer, the ear and face markings much more distinct, the tip of tail dusky. Measurements, — (From dry skin.) Total length 2015 ; tail verte- brae 670. 600 MERRIAM Cranial measureineiits. — Type specimen ( 9 yg-ad.) from base of Andes : Basal length 168 ; occipito-nasal length 177 ; zygomatic breadth 135 ; postpalatal length 86 ; interorbital breadth 36 ; upper carnassial 24.3. FELIS PUMA PEARSONI (Thomas). Santa Cruz Coast Puma. Felis concolor pearsoni Thomas, Annals & Mag. Nat. Hist., 7th Ser., Vol. VIII., pp. 188-189, September, 1901. Type locality. — Santa Cruz, Patagonia (about 70 miles from coast). Characters. — Distinguished from F. puma " not only by its different general color, but also by its shorter tail, light colored ear-backs, and the absence of the dark markings round the digital pads." — Thomas. Color. — " General colour nearest to Ridgway's ' clay-colour,' there- fore exceedingly different from the nearly ' drab-grey ' of F. c. puvia. This colour is most vivid along the back, paler laterally on the sides, but there is nothing that can be called a distinct dorsal dark line. Under surface whitish fawn, the hairs sandy at their bases, whiter ter- minally. Face very much like back, darker markings practically ob- solete ; the usual lighter markings near the eye present but not conspic- uous. Ears of normal length, their backs imiformly whitish fawn, without darker markings. Outer sides of limbs like back, inner side like belly ; ends of fingers and toes whitish, without any darker mark- ings round the pads. Tail proportionally very short, brownish clay- colour above, whitish below, the tip not or scarcely darker." Cranial characters. — In describing this form Mr. Thomas had no skull. The U. S. National Museum and Biological Survey, however, have two skulls, evidently male and female, from the coast region of Santa Cruz, near the type locality of Mr. Thomas' skin. The male is from Coy Inlet (lat. 51° S., collected by Hatcher) ; the exact locality of the female is unknown. These skulls agree among themselves, and differ from F. puma from Chile and F. puma patagonica from the base of the Andes, in having the frontal region more elevated, the in- terorbital breadth greater, the nasals very much broader posteriorly and abruptly truncate instead of angular, and the anterior base of the coro- noid process of under jaw much less broadly expanded. Re?narks. — From Thomas' description it appears that the coast animal (^pearsotzi) is very much yellower than the animal from the Andes (^patagonica^., and that it lacks the dark ear patches and distinct face markings of patagonica. The tail appears to be short. Measurements. — (Type specimen, "tanned and stretched, so that the measurements are merely approximate"). Head and body 1370 mm. ; tail 530 ; ear 80. CHARLES ANTHONY SCHOTT 6oi Charles Anthony Schott. 1826-1901. Charles Anthony Schott, astronomer, geodesist, magnetician, mathematician, meteorologist, was born August 7, 1826, in Mann- heim, Germany, and died July 31, 1901, in Washington, D. C. Graduating C. E. from the Polytechnic School in Carlsruhe, in 1847, he came to the United States and entered the Coast Sur- vey in 1848. The rest of his long, industrious and useful life was spent in that organization and almost exclusively in office work. For more than half a century he served in its compu- ting division and for 45 years of that time he was its chief. The amount of work performed by this diligent, methodical and industrious scientist was enormous, and his influence upon the character and work of the Coast Survey probably exceeds that of any individual ever connected with the organization. INDEX Note : — New species in black face type, synonyms in italics. Abbott, W. L., Mammals collected by, Natuna islands iii Achnantlies glabrata 445 lanceolata 445 subsessilis 445 Acrididse 495 ^gathoa excisa 567 .?Jschna clepsydra 223 constricta 220 ereviita 223 galapagoensis 382 juncea 219 sitcliensis 222 ^sclinidas 219, 382 yEshnajunia 223 Junius 223 Agarum gmelini 430 turneri 431 Agelaeus imtliurni 155 Agelaii, of North America and Mexico Agelaius phoeniceus caurinus 153 fortis 153 neutralis 153 AgrcEcia cooksoni 497 Agrion annexum 222 hastata 382 hastatum 382 Agrionidse 217, 382 Agromyzidae 378 Ahnfeldtia plicata 435 Alaria cordata 426 fistulosa 426 fragilis 425 fragilis forma bullata 425 lanceolata 426 laticosta 425 Alaska, Harriman Expedition algae 391 ascidians 225 harrimanella 569 hydroids 157 nemerteans i odonata 217 willows 297 Algae of Alaska bj' Saunders 391 catalogue of species 396 geographic distribution 392 Amaroucium californicum 254 coei 251 figariuni 253 translucidum 249 Aniphiporus 40 angulatus 41 bimaculatus 44 exilis 54 leuclodus 51 nebulosus 48 neesii 4 on Amphiporus (Continued). tigrinus 46 virescens 28 Amphiroa epiphlegmoides 442 planiuscula 442 tuberculosa 442 Amphora elliptica 447 ovalis 447 Anasa obscura 365 Anaulocomera darwinii 496 Anax 385 junia 223 Junius 223 spiniferus 223 Ancbineura tibialis 374 Andromeda empetrifolia 574 hypnoides 575 s'telleriana 569, 574 Anisolabis annulipes 492 154 boemansi 492 maritinia f 492 Anomalagrion hastatum 382 Anthomyia setia 375 Anthomyidae 375 Anthrax brachialis 373 lateralis 373 nudiuscula ? 373 Antithamnion boreale 439 Aphanothece microspora 397 Arce's calliste 149 Arcterica oxycoccoides 573 Arctogalidia inornata 131 leucotis 132 stigmatica 132 Arthrodesmus convergens 403 Ascidia adhserens 227, 229 koreana 229 Ascidians from Alaska, by W. E. Ritter .225 bibliography 257 list of species 226 localities where obtained 225 Ascopera 237 Asilidae 374 Asilus viarginellus Tfj^ Baccha clavata 374 facialis 374 Bacillariaceae 442 Bangia atropurpurea pacifica 432 Bangiaceae 432 Banks, Thysanura and Termitida? 541 Batrachospermum vagum flagelliforme 433 Berytidae 366 Bibliography of ascidians 257 fish skeleton 538 hydroids 189 (603) 6o4 INDEX Biddulphia aurita 443 Bimeridae 166 Blarina mayensis 559 Blattidce 493 Branner Agassiz Expedition 139 Brazil, Branner Agassiz Expedition ; Mol- lusk's from Pernambuco 139 Bryanthus s telle ri 574 Boat-tail, Sonoran 151 Bombylidse 373 Borlasia catnillea 4 quinqueliiieata 4 Bostrichobranchus 237 Botryllus magnus 255 Ell crates? cocoa nnus 4,()" Bulbochsete brebissonii 412 insignis 413 intermedia 413 nana 413 nordstedtii 413 Calithamnion floccosum pacificum 439 plumula 439 Callospermophilus madrensis 563 Calospiza florida arcsei 149 Calotermes galapagoensls 544 pacificus 545 Calothrix fusca 399 scopulorum 399 Calycella 176 syringa 176 Calypteroblastea 169 Cambrian, new species of Olenellus from 267 Campanularia 171 caliculata 170 compressa 170 denticulata 171 gracillima 177 lineata 171 redupUcata 172 regia 172 ritteri 171 serpens 179 speciosa 171 urceolata 172 verticillata 171 Campanularidae 169 Campanulina 176 rugosa 176 Campanulinidse 176 Canace snodgrassii 378 Cannacria baiesii 389 fumipennis 387 Canthecona grandis 364 Capsidce 366 Carinella ii annnlata 13, 17 capistrata 16 dlnema 15 nothus 17 polymorpha 12 speciosa 11 superba 15 Carinoma 20 armandi 20 grifflni 20 patagonica 21, tremaphoros 20 Cassiope ericoides 569, 571 Cassiope (Continued). fastigiata 569, 572 hypnoides 569, 575 lycopodioides 569, 572 mertensiana 572 oxycoccoides 573 redowskii 572 selaginoides 572 stelleriana 569, 574 tetragona 569, 572 Cephalothrix 19 linearis 19 Ce rami a cere 439 Ceramium codicola 439 rubrum 439 Ceratopogon galapagoensls 372 Ceratothaninion pekeanum 439 Ceratothoa gaudichajidii 568 rapax 568 Cerebratulus 74 alblfrons 82 angulatus 75 bell us 71 fuscvs 75 herculeus 75 inipressus 70 longlceps 77 marginatus 75 montgomeryi 80 occidentalis 76 Chictoceros hispidum 443 Cluetomorpha cannabina 413 nielagonium forma rupincola 413 Characeee 416 Chara contraria 416 fragilis 416 Cliironomidte 372 Chlorophycese 409 Chlorospingus sumiclirasti 150 Chorda filum 424 Chordaria abietina 424 flagelliformis 424 Chordariaceae 423 Choreocolax polj'siphoniae 433 Chroococcacese 396 Chroococcus rufescens 396 turgidus 396 Chrysomyia quadrisigfnata 375 Chrysopsis 551 Cicada 370 Cimex perditor 365 sanguinolenta 365 Cladophora arctica 414 flexuosa 414 scopaeformis 414 Cladophoraceae 413 Clathromorphum circumscriptum 442 Closterium acerosum 401 acutum 401 angustatum reticulatum 401 brebissonii 401 dianse 401 juncidum 401 lunula 401 parvulum 401 striolatum 401 venus 401 Clytia caliculata 170 compressa 170 Cocconeis placentula 445 INDEX 605 Cocconeis (Continued). scutellum 445 Cocconema lanceolatum 445 Codiacese 416 Codium adhaerens 416 mucronatum californicum 416 Coe, W. R., Nemerteans i Coilodesme bulligera 422 californica 422 linearis 421 Colpomenia siniiosa 421 Conjugatse 400 Conocephalus insulanus 501 Constantinea rosa-marina 441 Coquillett, D. W., Diptera 371 Corallina arbuscula 442 pilulifera filiformis 442 Corallinaceae 441 Cordulia albicincta 220 eremita 220 shurtleffi 220 Coreidae 365 Coreus serratus 365 Coryne bracMata 165 eximia 166 Corynidae 164 Coscinodiscus argus 443 Hneatus 443 Cosmarium bioculatum 403 botrytis 405 broomei 406 caelatum 405 conspersum 405 constrictum 403 contractum 404 costatum 405 depressum 403 gran at um 403 hammeri 403 holmiense 403 intermedium 405 kitchelii 404 latum 404 ochtodes 405 ornatum 406 pachydermum 404 parvulum 404 phaseolus 405 portianum nephroideum 405 pseudogranatum 405 pseudotaxichondrum 406 pulcherrimum 405 pyramidatum 404 quadrifarium 405 sexangulare 404 sphalerostichum 406 subcrenatum 405 tumidum 404 undulatum 404 venustum 403 Cosmocephala beringiana 41, 42 Cosmoclopius (Harpactor) 366 Costaria turneri 431 Cotulina polyzonias 183 tricuspidata 183 Cougar, Adirondack 582 Florida 583 Mexican 592 Pacific coast 590 Rocky Mountain 585 Cougars, cranial measurements of Roose- velt's 587 table of cranial measurements 588 Coville, F. v., Harrimanella 569 willows of Alaska 297 Cryptonemia obovata 440 Cryptosiphonia grayana 441 Culex tseniorhynchus 372 Culicidae 372 Currie, R. P., Odonata from Alaska 217 from the Galapagos 381 Cycloptilum erraticum 505 lepismoide 505 Cymathere triplicata ^30 Cymbella ehrenbergii 447 insequalis 447 Cyinothoa ga udicha iidii 568 Cymothoidae 567 Cynopterus niarginalus 137 montanoi 137 Cynthia villosa 238 Cystophyllum lepidum 432 Dall, W. H., Mollusks from Pernambuco 139 Delesseria alata 437 brerii 437 crassifolia 437 decipiens 437 sinuosa 437 serrata 438 Delesseriacece 437 Derbesiaceae 415 Derbesia marina 415 vaucheriaeformis 415 Dermocarpa biscayensis 397 prasina 397 fucicola 397 Descriptions of harvest mice by C. Hart Merriam 547 Desmarestia aculeata 422 viridis 422 Desmarestiaceae 422 Desmidiaceae 400 Desmidium swartzii 408 Desmonema wrangelii 398 Diatoma hyemale 444 pectinale 444 Dictyosiphonaceae 422 Dictyosiphon fceniculaceus 422 Didemnum inarmatum 249 strangulatum 247 Dilsea arctica 441 californica 441 Diplax hudsonica 221 Diptera, by D. W. Coquillett 371 Disphinctium connatum 402 cucurbita 402 Distaplia confusa 246 livida 247 magnilarva 247 occidentalis 245 Distoma adriaticum 245 cristallium 245 laysani 245 pulchra 243 Docidium baculum 402 coronulatum 402 dilatatum 402 minutum 403 6o6 INDEX Dolichopodidse 374 Dolichopus pustllus 374 Drepanaporus crassus 42 spectabilis 42 Drillia greeleyi 146 Dumontiaceie 440 Dumontia filiforinis 440 Ectocarpaceae 416 Ectocarpus confervoides 418 confervoides corticulatus 418 confervoides pygmaeus 418 corticulatus 418 tomentosus 417 Eisenia arborea 431 Elachistaceae 423 Elachista lubrica 423 Emballonura anambensis 134 Emplectonema 23 biirgeri 25 camillea 4 gracile 23 viride 23 Enallagma annexura 222 calverti 218 cyatliifferttin race annexum 232 EncceliaceEt; 419 Endocladia muricata 434 Enteromorplia crinita 412 intestiualis 411 intestinalisy'orwa cylindracea 411 intestinalisybrw/a maxima 411 linza 410 linza. /or ??t a crispata 411 \inza./ort>ia lanceolata 41 1 micrococca 41 1 prolifera 411 Entomological results of Harriraan Alaska Expedition, Odonata, 217 Hopkins Stanford Expedition 364 Diptera 371 Hemiptera 363 Odonata 381 Orthoptera 487 Th5'sanura and Termitidse 541 Epitheca albicincta 220 Epitheraia gibba 447 jurgensii 447 westermannii 447 Ephydra gilvipes 377 Ephydridse 377 Epoplithalmia albicincta 220 Erica stelleriana 574 Euastrum affine 408 ansatum 407 crassum 407 didelta 407 elegans 408 gemmatum 407 oblongum 407 pokornyanum 407 verrucosum 407 Eu CO pel I a campanularia 170 Eudendridae 167 Eudendrium bacciferum 166 vaginatum 167 Eudesme virescens 423 Eugyriopsis 237 Eunemerles 23, 3 gracilis 23 Eunevicr tes (Continued). neesii 4 Eunotia gracilis 445 lunaris 445 robusta 445 Eupolia 61 Euthora cristata 435 Euxesta nitidiveutris 376 notata 376 Expedition, Branner Agassiz, see Brazil Harriman Alaska, see Alaska Hopkins Stanford, see Galapagos Fasciola angulata 41 Fasciolaria aurantiaca 140 Felis aztecus 580, 586 bangs! 580, 595 bangsl costaricensis 595 concolor ^-j-j, 580. 582, 593 concolor Jioridana 583 concolor pearsoni 600 coryi 580, 583 cougar 582 hippolesles 579, 580, 581, 585 liippolestes aztecus 592 liippolestes olympus 590 list of species 582 raacroura 591 oregonensis 590, 591 oregonensis liippolestes 582 olympus 579, 580 patagonica 579, 580 penusylvanica 582 puma 580, 597 puma patagonica 598 puma pearsoni 580, 600 Filellum serpens 179 Fish skeleton, synonom5' of, by E. C. Starks 507 alphabetical list 527 bibliography 538 list of synonyms 508 Forficasila annulipes 492 Forficulida; 492 Fragilaria construens 444 exilis 444 striatula 444 virescens 444 Fucacese 432 Fucus evanescensybrwia cornuta 432 forma macrocephala 432 Fulgoridic 370 Galapagia solitaria 494 Galapagos, Hopkins Stanford Expedi- tion, account of, 363 diptera 371 entomological results 364, 371, 381 487. 541 , hemiptera 364 isopods 565 odonata 381 orthoptera 487 thysanura and termitidae 541 Galeopithecus volans 134 Garveia annulata 166 nutans 166 Gelidiacese 433 Geranomyia stigmatica 373 Gerridoe 369 Ghilianeila galapagenls 367 INDEX 607 Gigartinacese 434 Gigartina pacifica 435 papi\\a.ta./orma cristata 435 papillata Ag. forma typica 434 Gloiopeltis furcata 440 Gloiosiphonia californica 440 Gloiosiphoniacese 440 Gomontiacea; 415 Gomontia polyrhiza 415 Gomphonema afEne 447 geininatum 447 subtile 447 Gonothyroea inornata 175 Grammaria immersa 178 Grammatophora marina 444 Gratloupiacese 4 ' GrillidcC 502 Gryllus galapageius 502 Gymnoblastea 164 Gymnozyga longata 409 Halecidae 179 Halecium halecinum 179 muricatum 180 ornatum 181 reversum 180 robustum 182 scutum 180 speciosum 18 r Halmenus choristopterus 496 cuspidatus 496 robustus 496 Halobates sp.? 369 wuellersdorfS 369 Halosaccion firmum 436 fucicola 436 microsporum 436 ramentaceum 436 tilesii 436 Hapalosiphon pumilus 399 Harmostes seriatus 365 Harpactor nigroannulatus 366 Harriman Alaska Expedition, see Alaska Harrimanella, a new genus of heathers, by F. V. Coville 569 hypnoides 575 key to species 574 stelleriana 574 Harvest mice, descriptions of, by C. Hart Merriam 547 Heathers, Harrimanella, a new genus of, by P. V Coville 569 Hebella pocillum 175 Hedophyllum sessile 429 subsessile 430 Heidemann O., Hemiptera 364 Helminthocladiaceae 433 Hemiptera, by O. Heidemann 364 Hesperomys couesi 287 fulvescens 295 (Oryzomys) palustris 276 Hildenbrandtia rosea 441 Hippelates pusio 378 Hippoboscidae 379 Hipposideros larvatus 135 Homalomyia canicularis 375 Homeostroma latifolium 420 lobatum 420 undulatum 419 Holoquiscalus, kinds of 151 Holoquiscalus (Continued). martinicensis 151 Homoptera 370 Hopkins Stanford Galapagos Expedition, account of 363 Hormidium parietinum 412 Hydrodyctiaceoe 409 Hydroids of Alaska, by C. C. Nutting 157 bibliography 189 geographic distribution 157 Hydruraceae 400 Hydrurus penicillatus 400 Icteridse, new species of 151 Icterus cucullatus sennetti 152 gularis tamaulipensis 152 mesomelas taczanowskii 153 Iridaea laminarioides 434 membranacea 4^4 Iridophanes 150 Ischnura 382 Isopods, by Harriet Richardson 565 Isthmia obliquata 443 Jadera sanguinolenta 365 Jalysus (Metacanthus) tenellus 366 Jassus sp.? 370 Jassus (Deltocephalus) sp.? 370 Kalymenia californica 435 lyafoea 177 adhserens 178 dumosa 177 fruticosa 178 gracillima 177 pocillum 175 Lafcfiidae 177 I,aminaria bongardiana 429 bo7igardiana subsessilis 430 bullata 428 cuneifolia 429 saccharina 429 sessilis 429 solidungula 429 Laminariaceoe 424 Leathesia difformis 423 Lepidomorphum yendori 442 Lepisma galapagoensis 541 insularis 543 lyCpismidae 541 I^eptetrum quadrimaculatum 221 Lestes sp. (?) 217 Leucomelina pica 375 Leucophaea surinamensis 494 Leucorhinia hageni 221 hudsonica 221 Libellula flavescens 385 hudsonica 221 hymencea 385 juncea 219 junia 223 quadrimaculata 221 I2) unalaschcensis 331, 332 venusta 342 Sarcophaga inoa 375 obtusifrons 374 violenta 375 Sarcophagidae 374 Saunders, D., Alaskan algae 391 Scaphidurus, known forms of 152 major nelsoni 151 Schistocerca literosa 496 melanocera 495 Schizophyceae 396 Schizothrix lacustris 397 lardacea 396 Schott, C. A., obituary of 601 Sciuropterus everetti I2i phayrei 1 21 Sciurus abbottii 126 bicolor albiceps 129 bicolor bunguranensis 129 bicolor nanogigas 130 lautensis 128 lingungensis 123 loifi 123 lowi natunoisis 123 lutescens 124 natunensis 123 navigator 129 notalus 124, 127, 128 prevostii 129 prevostii navigator 129 procerus 122 rubidiventris 127 rutin ventris 126 seraiae 125 tenuis 122 Scytonemaceae 398 Scytonema figuratum 398 mirabile 398 myochrous 398 variutn 398 Scytosiphon bullosus 421 lomentarius 421 lomentarius complanatus 421 Semnopithecus cristatus 138 natunae 138 Sertularella 182 conica 183 geniculata 184 polyzonias 183 rugosa 183 saccata 183 tricuspidata 183 Sertularia argentea 184 Sertularia (Continued). cupressoides 185 dichotoma 173 dumosa 177 fabricii 185 halecina 179 muricata 180 polyzonias 183 similis 185 thuiarioides 186 tricuspidata 183 variabilis 185 verticillata 171 Sertularidae 182 Seven new mammals from Mexico, by C. Hart Herriam 559 Somatochlora albicincta 220 Soranthera ulvoides 422 Sphacelariaceae 419 Sphacelaria cirrosa 419 racemosa arctica 41 Sphaerella lacustris 409 Sphaerophoria splendens 374 Sphaerozosma excavatum spinulosum 408 Sphingonotus fusco-irroratus 495 Spirogyra porticalis 409 varians 409 Squamariaceae 441 Starks, E. C, synonomy of the fish skeleton 507 Staurastrum arctiscon 407 calyxoides 406 dejectum 406 dejectum mucronatum 406 echinatum 407 furcigerum 407 polymorphum 407 pygmaeum 406 ravenelii 406 Staureoneis phcenicenteron 446 Stenocephalus insularis 365 Stigonema minutum 399 ocellatum 399 Stigonemataceae 399 Stratiomyidae 373 Streblonema irregularis 417 minutissima 416 pacifica 417 Styela greeleyi 241 monterej-ensis 241 truncata 241 yakutatensis 239 Sumichrast's chlorospingus 150 Surirella elegans 446 Sus cristatus 117 natunensis 117 Syncoryne 165 eximia 166 Synedra crotonensis 444 fasciculata 444 prolongata 444 ulna 444 Synonymy of fish skeleton, by E. C. Starks 507 alphabetical list 527 bibliography 538 Synthesiomyia brasiliana 375 Syrphidae 374 Syrphus clavatus 374 duplicatus 374 6l2 INDEX Syrphus (Continued) spiendens 2,7 A Tabanidae 373 Tabanus vittiger 373 Tabellaria flocculosa 444 Tceniosoma 61 (Eqiiale 4 princeps 62 quinquelineatum 4 septenilineatum 4 Tanager Cozumel 149 Escondido 150 McLeannan's 150 Yucatan 150 Tanagridae, new species 149 Tanaidae 565 Tanais Stanford! 565 Temnopteryx snodgrassii 493 Termitidae 544 Termitidae and Thysanura, by N. Banks 541 Tetmemorus brebissonii 402 laevis 402 Tetrastemma 57 aberrans 58 bicolor 57 caecum 59 cruciatum 58 rubrum 58 vermiculus 58 Thalassosira cleve 443 Thompson, Miss C. B. 20 Thuiaria 184 argentea 184 coei 185 costata 187 cupressoides 185 elegans 187 fabricii 185 gigantea 186 similis 185 thniarioides 186 turgida 186 variabilis 185 Thyanta perditor 365 Thysanura and Tennitidae, by N. Banks 541 Tipulidae 373 Tolypothrix tenuis 398 Tragulus sp. 115 bunguranensis 113 javanicus 115, 116 pallidus 116 Tramea darwini 386 Trentepohlia iolithus 413 Triceratium wilkesii 443 Trivia pediculus 140 Trochiscia moniliformis 443 Tubularia 168 harTimanl 168 Tubularidae 168 Tupaia lucida 133 sirhassenensis 133 splendidula 133 Tupaia (Continued). splendidula lucida 133 splendidula lypica 133 tana 133 Turbinella ovoidea 140 Tumerella mertensiana 435 Tylomys bullaris 561 Tumbalensis 560 Ulothrichaceae 412 Ulothrix flacca 412 parietina 412 Ulvaceae 409 Ulva lactuca myriotrema 410 lactuca rigida 410 priapus 431 Urospora penicilliformis 413 Vanheurckia rhomboides 446 Vaucheriaceae 415 Vaucheria sessilis 415 Viverra tangalunga 133 Voluta hebraea 140 Wanner, A., new species of olenellus 267 Willow, arctic 326 barclay 316 bebb 306 bog 329 chamisso 325 diamondleaf 319 feltleaf 311 grayleaf 321 greenbacked 317 icy 329 least 338 little-tree 323 mouseleaf 322 myrtle 325 netleaf 340 nuttall 310 oval 331 polar 335 richardson 315 satin 307 skeleton 336 sprouting 333 yakutat 314 Willows of Alaska, by F. V. Coville 297 distribution 299 groups, 298 key to 300, 302 Xanthidium antilopaeum 403 armatum 403 Xanthopsar 155 Xiphidium exitiosum 501 Zarhynchus wagleri mexicanus 151 Zygnema 409 Zygnemaceae 409 Zygonemertes 28 albida 31 thalassina 29 virescens 29, 30