Fee dei Bethe beds ®lke NORAD tite be st ‘ vo Wi ital wae Sica wy Wie WY AR ah wi Aad dane " yy mya nat Hie + vel b 4 Uancaaewn % N UR Aa A whet N as A oe ae 1 : ’ an ft a 4) Ny DUR ALA va a AN ay NTR RT NOG eae eG Woe" san SURGES A RICE At RIA Tae a at ei oa ae te Ay Lai, ( rinks CIR Pa ee de & An vit wae PA deed de Mae Wa eit ARN ma WO) ‘natal aae yg) BOL 4 na », ny cit betaine i ye > i A my si an ue sabe’ reali i'n ‘ Ne i , ms Lene tt 4 LK) oh ne) i Ui i Petit Wil ‘4 SON Naas a ‘ Me i ath ais Ai R Ne NS any! the ya pe i WR A Vy ‘Lae Wha wet: Weta ua t wo) SP TNT TG 1h D OR RY AAR f hee NNN NS sate ih HG ts + — rn na) eee) ‘ DNR b i Dt ‘ Wiice ci j Pa aka " POUR NHR eR AT an ee nrg me SD i PIA Ne 1a ah i iia) Te Oe i 4 . ohoke WW ii ry fee ina, bee aA a via lo Nab ah a ASI ois ae HAUL 1 recon y ee , OR oy ia iV ¥ Pa Wee Qt Anyi MU Sad a wy at Nile in ma aM) a ang At 2th) a hat 2 deine ihe hw i ! i my ONAN at mH De Vet aR milk a { aie ah a Ns ae , eon wh. : f ; 4 Wit Vy) sy ahh ta en teat) PRO No x Teta yh DCUMC NCTA ’ - yh AHA RAUNT RS AOA aah Th v Pewee t fi b NAA We Ui WCU Xe n hd eles it eee ali tla ae EN PAO RMAC OA Ly eae : ; * wee NY va ) AS Ny Pianian a be PO Nn a) ORO ‘\ UR. ; Neath SLO RR Ran ;! era. cheat RON NOC yas yeaa ay Vy pay : my My bbe \ e)s view LORS \ itty ahaa " bavawrart , ! 7 reed ee H ryaes i ah iota oy on vy ’ AGA ote ihe a Kean ‘' stangetn 9-0 i na i ‘ Ra ye meee Hy : hy i in HY i AALS Uae RAL i X23 a 1 ‘ fy oh ‘ws i Bava % eerie Y t. He Be A: Mak Re ath Ly va wt bee wit “bathe uh 1 ee re Wopae te it utr ahh 4 iy Pirin TST HI & teh Per Win Pics etek a we ’ rhe shits As aa fey et tty AN Way VL x ALM ne AUC TaN Nh DON i) + “ a wy aA K i WR ein 0 a babe Ds fh i nai hy. wit hy SANSA den A th yer sath? ‘ ay re) » Pe ‘ oy mee ‘s y i! Wed dele dT te On Oe eT 4") sity ‘ yh Ly De ude des yy webbots aa Sh dome Nh whi, nie we py rites a7 ay AR ata te ' Ear a Pee te ea eas i) Ve Desde rie yoo i) My mew tiny a MTRriC Yn Ye) ‘bs : : eyo bey Deeded Biehy ny Lew, i) by eh de! t Bay es. ay \ Se EU Nas Ds thee ate Ms esate tts Bs a sate’ OQ nkebae kena Pow, see ew hr Yoshii yy Wigs WAL M RCM DF De MOE ate STE a ls 4 dion! \ ar alave oi) Ven vide x eked Le Hye tribe mse HN UALS as Be bor VW ates tee Ve MO ae Piaget PY a WDE : yeh HO y : Y pestis ba es Bs ae - i or ey you spy 4h Wo ah Vea bee F We de Ha bein BIOS: Hy tpi is ( ¢ V4 Weep Py w i! in ’ iy We \ RL MAY F ' 4 ) ho Y hed He LY, ay \ "A OB deb 0s. De RAAAYC ANT S } Yvan e Sy am heh) want * ‘aha teh yy a y ee hat Meh calataith HN ir by ty ti i Hoey ee hh NA) UDA TLR PTA ARE TaN ' WR ay dab nae Wr eto id We) 2800 a MAR I Coan » ye saad Ae A wh) eV gray wae ARR ye DOD teh i Vd wy Ve vtyh r over we AAS ip ASNTy Oe edge ete Pa Ncd Gales hee ha , 1 Bia 9 ep yas yy A Pye wn a ae . SERIE A a oe i WEL le AI Me SY , MOS MCL ANAC HAE D RE 2 yay i} BEATE at ) RYO ny yy NOAA Piolo yy , 4 ti 5 Farley Wnt ee) ie Ay Peyyve Vn y CATA aR » ny sh) Ny 0) on } NR vt \ Y PN Rant Der CN Wikod, i Y ’ ra Ree dort 9a Bek j oe li Donate ‘bed ry ba deith ap AMA DR nt ‘ , “¢ pad Sadat On fib ; ‘ ‘ Warb 4 a 4 “ed He Aah RL yt Pleo yey Hilt eae wile Vast ae sted soa ed ae sn i te y A ivusd ees haiewe oY Ay ORY ft oe dette ce hi Te ok 2 oti he atte hen at ‘ t ARON Oy bey iy ic A * on a thast * orca Aly ie Aha ania ay CAL sod Wk Pilsbor aka ers Y di Sidutayhayhake ce ba TC af ese nt pri IK bee ed LHe ade te VI Theat a bene ee be CONS ea Mos barre ie hee he Soe ( Ath raed tke di OLdes ‘ ‘ . ny Pe te i dt A OL ow 1G we oe ewe TG eat see et we Rig) dete he it ag } tehid Oy eR Hs i 7 SMR URL RSE Hy i - LAU « ¥ ¥ th , wot doy SERRA ROMNEY Wee DA le rar a) ee ¥ Boon et sigh " i PROCEEDINGS OF THE CALIFORNIA ACADEMY OF SCIENCES FOURTH SERIES Vor; 1V 1914/7 ——e , Ouidah nstaae ss ue KG ae oe mn AUG 23 SAN FRANCISCO PUBLISHED BY THE ACADEMY 1914 COMMITTEE ON PUBLICATION C, E. GRUNSKY GEORGE C. EDWARDS, Chairman BARTON WARREN EVERMANN, Editor CONTENTS OF VOLUME IV. Piates 1-12. PAGE Mites pagel seee ce aS ORY He CU NON NIIUIUA al MR LETSAEL O HeeREN i Contents. 2) IE eA ON eA NOE Ac Aas ew ae IER ne Aer ili Report of the President of the Academy for the Year 1913. By C. E. (CREST eo eee Rp eae tera eer erecteeaacecaen rere tese 1 (Published April 9, 1914) George Davidson. Biographical Sketch. By George W. Dickie, Ralph Harrison and Samuel B. Christy.............--.-2--.---scecs-ceoesteceecteneeseeeeseeneees 10 (Published April 9, 1914) Neocene Record in the Temblor Basin, California, and Neocene De- posits of the San Juan District, San Luis Obispo County. By Frank M. Anderson and Bruce Martin. (Plates 1-10)...............---- 15 (Published December 30, 1914) The Fauna of the Siphonalia sutterensis Zone in the Roseburg Quad- rangle, Oregon. By Roy E. Dickerson. (Plates 11-12)................ 113 (Published December 30, 1914) Reptiles and Amphibians of the Islands of the West Coast of North America. By John Van Denburgh and Joseph R. Slevin..............---- 129 (Published December 30, 1914) The Pocket Gopher of the Boreal Zone on San Jacinto Peak. By eiGrevmmellermal ISLS. Siete ee te 153 (Published December 30, 1914) Tay eh eae ie ENE ASEAN 2s eet eats seen 161, 167 July 19, 1916 PROCEEDINGS OF THE CALIFORNIA ACADEMY OF SCIENCES FourTH SERIES. VOE. SIV, pp.-iel3 I APRIL 9, 1914 Report of the President of the Academy for the Year 1913 I] George Davidson SAN FRANCISCO PUBLISHED BY THE ACADEMY 1914 ay : Waeog Ae Anemia: nage AOS use Hite ee tes ee P, ra ‘, Pecan ofa, x on PROCEEDINGS OF THE CALIFORNIA ACADEMY OF SCIENCES FourtH SERIES Vor. IV, pp. 1-13 APRIL 9, 1914 I. REPORT OF THE PRESIDENT OF THE ACADEMY FOR THE YEAR 1913. MEMBERSHIP The Academy now has a membership of 491. Of these 375 are Resident Members, 84 are Life Members, and 32 are Honorary Members. During the year, 144 new members were elected and quali- fied. By resignation the Academy lost 11 members, and by death the following eight: R. M. Brereton, Woodstock, Oregon Life Member Hon. John P. Jones Life Member Henry C. Schaertzer, San Francisco Resident Member Herbert Brown, Tucson, Ari- zona Resident Member Andrew B. McCreery Life Member Dr. Wm. McMichael Wood- worth, Cambridge, Mass. Life Member Col. A. G. Hawes, San Fran- cisco Life Member Gen. L. H. Foote, San Fran- cisco Life Member, and for many years an officer of the Academy QUARTERS AND MEETINGS The Academy is still housed in temporary quarters at 343 Sansome Street. It has held regular bimonthly meetings, and a good attendance at these meetings may be accepted as evi- April 8, 1914 wae SmI phate sonian Insti %, ; 2 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Ser. dence of active interest in the Academy’s affairs by its members. As the business affairs of the Academy are in the hands of its Trustees, these stated meetings should be devoted primarily to the discussion of scientific subjects. This has been the case only to a limited extent since the Academy has been housed in temporary quarters. The time has now come when there should be a resumption of the old practice of giving those who are actively engaged in scientific work, whether within the Academy or without, frequent opportunity of pre- senting the results of their work in a more or less informal way to those who are interested. Some steps toward encour- aging the use of the stated meetings for this purpose have already been taken; but the afternoon meetings are ill adapted for this purpose, and it is believed that it will be wise to return at an early day to the old practice of meeting in the evening. The Academy has been accumulating a large amount of material in its temporary quarters. Most of this is for refer- ence and study. At the present time the collection, together with the library, which has also assumed fair proportions, taxes the available floor-space nearly to its limit. The need of permanent and large quarters, and the need of a place in which exhibits for the benefit of the public may be installed, has been an ever-increasing one. THE NEW MUSEUM BUILDING The Academy was granted, by a vote of the people of San Francisco on November 15th, 1910, the right to erect a museum building in Golden Gate Park. Preparations to avail ourselves of this privilege have been under way for several years. The plans for a building have been finally accepted by the Academy, and have been approved by the Park Commissioners. Contracts have been awarded for the grading, the brick and concrete work, and the stone work required for the erection of the first unit of the proposed building. This first unit, consisting of a section of the main front of the building with two wings, of which one is to be used for research work, will cost about $164,000. Vor. IV] THE PRESIDENT’S REPORT FOR 10913 3 Some evidence of the esteem in which the Academy is -locally held may be found in the fact that the Building Com- mittee of the Board of Supervisors of San Francisco declared its willingness to recommend that the Academy be granted the right: to erect its museum building at the Civic Center, provided that satisfactory assurance could be given that our building would be completed in a reasonable number of years. Owing to the fact that our financial situation did not justify the giving of such an assurance, covering a possible total expenditure of from $600,000 to $800,000, this proposition could not be entertained, and the matter had to be dropped. RESOURCES The property of the Academy stands upon the books at a value of about $1,300,000, subject to an indebtedness of $300,000. The details of this book-value and of the annual income appear in the Treasurer’s report. It is interesting to note that the net annual income from the Academy’s property on Market Street (the Commercial Building) is about $46,700, and that from other sources, such as fees and dues, interest on special funds and short term loans, this income is swelled to about $53,700. The Academy has expended during the last year for rent, salaries, and on its collections, about $32,700. The funds available for building have been increased by about $21,000. It is estimated that a sum of from $125,000 to $130,000 -can be made available for the new building by the end of 1914, with some surplus for the installation of exhibits. This can be accomplished by continued exercise of economy, and by some curtailment of the Academy’s activities, which under ordinary circumstances should be extended rather than curtailed. The additional funds required for the building will be advanced by the Crocker National Bank, a courteous act, which will be duly appreciated by the Academy. DONATIONS AND BEQUESTS The Academy has been the recipient of a number of dona- tions, which have been recorded and suitably acknowledged 4 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. throughout the year; and I take this occasion of again ex- pressing the Academy’s appreciation of the kindness of these donors in doing their share toward enlarging the Academy’s field of usefulness. The Academy is above all an educational institution. Through its collection of scientific material, through the work of its curators, and through the museum ex- hibits which it maintained before the fire, and which it will re-establish as soon as proper space is provided in the new building, it aims to disseminate knowledge of the world in which we live, and to provide material that would otherwise be beyond the reach of the individual student. That such material flows to the Academy from many sources is an evi- dence that this fact is appreciated. During the year a bequest of books and pamphlets was made to the Academy by Dr. William McMichael Wood- worth, formerly of California, but in recent years a resident of Cambridge, Mass. This bequest included 235 bound vol- umes and over 2000 unbound volumes and pamphlets. ACTIVITIES During the year which has just drawn to a close the Acad- emy has been as active as circumstances would permit, both in the continuation of research work in various departments, and in the preparation of material for the museum, the build- ing for which—at least so much of it as will be required for immediate needs—we may hope to see completed in Golden Gate Park within this year. The activities of the Academy along scientific lines will be set forth in detail by the Curators of the various departments. While the Academy’s effective work is perhaps best evidenced by the Academy’s publications, much has been accomplished which is not found nor referred to in the published material, and which will bear brief notice here. The Curators and their assistants have worked faithfully in the collection of new material, in the classification and arrangement of the material on hand, and in the publication of the results of the work done. Vor. IV] THE PRESIDENT’S REPORT FOR 1913 5 DEPARTMENT OF BOTANY Miss Alice Eastwood, Curator of the Department of Botany, besides being active in her own department, has been serving also as Assistant Librarian, and has done much to- ward perfecting an orderly arrangement of the books and pamphlets which have been accumulating since the destruc- tion, in 1906, of the Academy’s original library. She has also proved a valuable aid to the Director of the Museum. She has made large personal collections during the year. The department has been enriched, too, by donations, among which that of L. E. Smith is notable. This consists of 2500 speci- mens representing 572 species of plants from Northern Cali- fornia. Other donors have added some 500 specimens to the botanical collection, representing nearly the same number of species. The material collected for the herbarium last year, and much of that which had accumulated in preceding years, was mounted, and some 12,000 mounted specimens have now been made conveniently accessible. They fill seven cases, in which they are arranged according to the latest system. They are labeled, though not all as yet are specifically determined. A feature of the botanical department is the Botanical Club, with a membership of about 50, which, under the leadership of Miss Eastwood, meets once a week, alternatively at the rooms of the Academy and on excursions. DEPARTMENT OF HERPETOLOGY In the Department of Herpetology, Dr. John Van Den- burgh, Curator, and Joseph R. Slevin, Assistant Curator, have continued active. The collection has increased from about 28,000 to about 30,500 specimens. Exploration has added the bulk of the new material mainly from California, Nevada, and Utah, with some specimens from the Channel Islands and a few from Arizona. In this department, also, various donors have added to the collection. The Curator and his assistants have completed the scien- tific work on the collections from the Galapagos Islands, and the results of the same appear as elsewhere noted in the publi- 6 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4tH Ser. cations of the Academy. They have also completed their studies of the collections from Arizona, and the results of these, too, have been published by the Academy during the year. In this, as in the various other departments, the routine work of caring for the collection and of arranging the speci- mens has received attention, and the recording of the collec- tion in the catalogue of the department has been brought up to date. DEPARTMENT OF INVERTEBRATE EAvEONTOUOGY In the Department of Invertebrate Paleontology, Mr. F. M. Anderson, the Curator, and his Assistant, Mr. Bruce Martin, have devoted such time in the field as means would permit to regional studies of minor provinces of the Pacific Coast, with special reference to the Tertiary formations. The field work was extended by Mr. Martin from California into Oregon and Washington, and a large amount of valuable material was collected. Some 21,500 specimens repre- senting about 700 species have been added to the Academy’s collection. The indoor work of the department has related to the preparation of material for publication and to the identifica- | tion and arrangement of the specimens in the collection. DEPARTMENT OF MAMMALOGY In the Department of Mammalogy, under the direction of the Curator, Mr. John Rowley, assisted by Mr. A. E. Bolton, the work of collecting and preparing material for exhibition groups has been continued. There are now mounted and practically ready for installation nine groups, as follows: Four seasonal groups of Blacktail Deer One group each of: California Mule Deer San Joaquin Elk Leopard Seal Steller’s Sea Lion Mountain Lion Vor. IV] THE PRESIDENT’S REPORT FOR 1913 7 Groups of the California Sea Lion and of Antelope are also reported to be in an advanced stage of preparation. The Academy has been liberal in its allotments for the work of this department during the last few years, because it is be- lieved that no better displays can be made to popularize the Museum, and thereby call attention to the facilities for scien- tific study which the Academy affords. It is to be added that the work which is being done by Mr. Rowley and his assistants is of an interesting character, and a visit to his laboratory in Berkeley, where the accumu- lating material is stored, is well worth while. DEPARTMENT OF ORNITHOLOGY The Academy’s valuable collection of bird specimens is particularly rich in material pertaining to the Pacific Ocean. The collection has received the necessary attention by the Director of the Museum. This department has furnished during the year one paper on the Birds of the Galapagos Islands by Mr. E. W. Gifford. DEPARTMENT OF ENTOMOLOGY In this department, the work of the year under the direc- tion of Dr. E. C. Van Dyke, Curator, assisted by Mr. Chas. Fuchs, has consisted principally in mounting, classifying, and arranging the material brought in from time to time, as well as the material already on hand. This department, as is the case with other departments, has been in cramped quarters, and will benefit greatly by the improved facilities for work and storage which the new Museum building will afford. The Curator did some collecting in Trinity County. He expresses his appreciation of the aid received from Mr. J. R. Slevin of the Department of Herpetology, and from Mr. Bruce Martin of the Department of Invertebrate Paleontology, the former of whom brought additions to the collection from Arizona, and the latter from Oregon and Washington. 8 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47H Ser. PUBLICATIONS Four papers have been published by the Academy. Two of these were issued as Parts VIII and IX of the series relat- ing to the Expedition to the Galapagos Islands, and the other two are a continuation of Fourth Series, Vol. III, of the Proceedings, as follows: Proceedings, Fourth Series, Volume II, Part I Pages 1-132. VIII. The Birds of the Galapagos Islands, with Obser- vations on the Birds of Cocos and Clipperton Islands (Columbiformes to Pelecaniformes), by Edward Winslow Gifford. Plates t-vir (Issued Aug. II, 1913). Pages 133-202. IX. The Galapagoan Lizards of the Genus Tropidurus; with Notes on the Iguanas of the Genera Conolophus and Amblyrhyn- cus. By John Van Denburgh and Joseph R. Slevin. Plates vi11—x1 (Issued Sept. 1913). Fourth Series, Volume III, Part I Pages 265-360. A Distributional List of the Mammals of California. By Joseph Grinnell. Plates xv-xvi (Issued August 28, 1913). Pages 391-454. A List of the Amphibians and Reptiles of Arizona, with Notes on the Species in the Collection of the Academy. By John Van Denburgh and Joseph R. Slevin. Plates xvu-xxvurt (Issued No- vember 5, 1913). The publication and distribution of these papers involved an expenditure of $2527.13. THE LIBRARY The work which, during the past year, has been done on the part of the Library has brought good results. Some room on the shelves has been secured by packing in boxes and storing away a large number of books, pamphlets, and serials which are least likely to be in demand by those who avail themselves of our facilities for reference. The more import- ant books and publications have been roughly classified and made conveniently accessible. The Librarian reports a healthy growth of the Library. The demands of the Curators for scientific works has been fairly well met, and there has been a fair increase through exchanges and complimentary sources, as well as by donations and by the Woodward be- Vor. IV] THE PRESIDENT’S REPORT FOR 1913 9 quest already referred to. It is expected that the Library will be gradually restored to full usefulness after it is properly housed in the new building. THE SCHOONER “ACADEMY” The Schooner “Academy,” which carried the Academy’s exploring expedition to the Galapagos Islands some years ago, has been sold. Upon the return of the expedition, the schooner was sent up to Martinez and cared for there at some expense for watchmen and annual ,repairs. As no further use for the vessel by the Academy was foreseen, an offer of purchase which was received during the year was accepted. THE PRESENT SITUATION The Academy is rapidly approaching a turning-point in its affairs. It will within a year have made suitable provision for the housing of its valuable collections, and will extend its activities in a larger field of usefulness. It has already col- lected much material for pictorial groups of mammals; the installation of these groups, together with a variety of miscellaneous material, will speedily follow the completion of the new building. The Academy will then be brought into closer touch with the public than it has been for some years, and new and larger responsibilities will fall upon the officers. These responsibilities your officers ask the members one and all to share with them by hearty co-operation in their en- deavor to maintain the Academy as a dignified and truly useful institution. C. E. Grunsky President 10 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Ser. II. GEORGE DAVIDSON This distinguished member, and we might say founder, of The California Academy of Sciences was born in Nottingham, England, on May 9th, 1825. His parents were Scotch people from Montrose on the east coast. They removed to Philadel- phia in 1832, George being then seven years old; and it was here that young Davidson received his elementary education. During his four years at the Central High School, he held the distinction of being continuously at the head of his class. Not satisfied with the knowledge he was gathering at school, the ambitious youth worked in the observatory from 12:20 a. M. till forty minutes before the school opened. ‘This wearing duty was performed at a salary of one dollar a week; but before his school course was finished, the lad had worked this pay up to $30 a month. During this time his instructor in astronomy, and the mas- ter under whom he worked, was Alexander Dallas Bache; and a good friend he proved to the lad so eager to acquire knowledge. Presently Bache was appointed to the head of the United States Survey, and through him young Davidson found his way into the government service. Here he must have worked himself into the notice of the heads of the depart- ment, for in 1849 he was selected to perform the important duty of charting the then unknown waters of the Pacific Coast. Davidson arrived at Yerba Buena (San Francisco) in the month of June, 1850, on the “Tennessee”. The working party consisted of George Davidson, Chief; James S. Lawson, A. S. Harrison, and John Rockwell. What by the United States authorities the charting of an unknown coast was con- sidered worth, may be gathered from the fact that Davidson received $800 a year, and his assistants received $30 per month. The Chief had to provide his own board, and on that account was often worse off than his assistants. We notice on the same pay-roll a cook enlisted at $125 per month, with all traveling and subsistence expenses provided. Thus a good cook was considered worth more than two good scientists. Within a space of three years, this little party charted the Vor. IV] GEORGE DAVIDSON 11 whole front coast from San Diego to Port Townsend. As- sistance in this great work was rendered by some United States Navy officers then on the coast, who carried on the topography based on Davidson’s determinations of latitude and longitude. From 1854 to 1858 Prof. Davidson was in command of the survey brig “Fauntleroy,” and much work was done on the Sound and in the Strait of Juan de Fuca. This involved much exposure. In consequence Lawson, who continued the work, suffered tortures from rheumatism up to the time of his death, and Davidson suffered intensely from neuralgia for years afterwards. How painstaking he was in regard to his base-lines may be gathered from the following memorandum in the Professor’s handwriting, which appears on the back of a photograph of himself in his sister’s possession, and which was kindly fur- nished by her to the writer. It relates to a base measured in 1888-89 : G. D. January, 1889. At measurement of the Los Angeles base-line, ten and three-fourths miles long, second measurement differed from the first 1/3 inch, third differed 1/120 inch from the second. Worked in measurement, computations, etc., 17 to 18 hours daily for three months. In 1868 Davidson was placed in charge of the Western Division of the Geodetic Survey, and himself mapped out the work to be done. He never sent out subordinates on difficult or dangerous duty, but went into the field personally. There is not a square mile where the work was carried on in Cali- fornia, Oregon, or Washington, that he did not occupy. His devotion to duty was even greater than his ability and capacity for work. No other American in the public service received during his life such general scientific acknowledgment from all countries as did George Davidson. He was elected to membership in thirty-two learned societies and academies, including the Royal Astronomical Society, the American Philosophical Society, the National Academy of Sciences, the National Geographical So- ciety, the Royal Geographical Society, and the Bureau des Longitudes of France. Davidson’s signal services to the United States Government were no less remarkable than the honors which were heaped 12 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4tH Ser. upon him by foreign scientists. In 1857, by a unique service, he saved the land titles of San Francisco by proving, after sixty hours of continuous work, that the Limantour seal on the claimant deeds was a forgery. In 1862 he was called east to take charge of the engineering work in connection with the defence of Philadelphia against Lee’s invading army. He was then placed in command of the armed Coast Survey vessel “Vixen,” for work on the Florida coast. In 1867 he was sent to explore the Isthmus of Darien for the purpose of locating a route for a ship canal. From there, Davidson was ordered to make a survey of Alaskan waters, and his report largely in- fluenced Congress to act favorably on the purchase of Alaska. His series of astronomical observations, taken in order to throw light on the problems of the variation of latitude, were termed by German scientists “a gigantic labor.” In 1891-92, in a period of fifteen months, he made no less than 6878 observa- tions. During President Cleveland’s first administration, he was one of the seven members of the Mississippi River Com- mission. In 1872 he was selected by President Grant for the important and delicate mission of sounding the sentiment of British Columbia on the annexation question, which was then disturbing that Province. The existence of the California Academy of Sciences is largely owing to the work which George Davidson did for it during its early history. He became a member of the Acad- emy in 1869, was elected President in 1871, and was re- elected each successive year until 1887. He always took a deep interest in the success of the society. His activities did much to give it prominence in the world of science, and to make its meetings conspicuously interesting. If there was no special subject announced to engage the attention of the regu- lar session, he could always draw upon his own inexhaustible fund of scientific knowledge to fill the hiatus. He was always on the alert for eminent scientists, or other notable visitors to San Francisco, who could be induced to address the meetings of the Academy. Conspicuous among such may be mentioned Dr. Louis Agassiz, Captain De Long of the Jeanette polar ex- pedition, and Lieutenant Schwatka returning from his explora- tions in Alaska. He took the initiative, and did more than any other, to secure from James Lick the magnificent endowment Vou. IV] GEORGE DAVIDSON 13 which has placed the California Academy of Sciences among the wealthy scientific societies of the world. While other offi- cers and members, including Dr. Henry Gibbons, Dr. George Hewston, Charles G. Yale, J. P. Moore, and others, rendered assistance, all his contemporaries in the Academy concede that he was the chief factor in securing the splendid gift. Every member of the Academy should therefore cherish the memory of George Davidson next to that of James Lick as its greatest benefactor. In addition to his invaluable books, there have been published about three hundred scientific papers by Professor Davidson. In a letter to his sister, he says of his most important works, The Coast Pilot of California, Oregon and Washington, 18839, and The Coast Pilot of Alaska—Part I, 1869: The sailors call my oldest Coast Pilot “Davidson’s Bible.” I wrote three editions, and then rewrote every line of the fourth, now sent to you. I had about 3500 pages of manuscript, and no fellow has yet found any but a few typographical errors. Remember this big work was done besides my other official work. That this man, after fifty years of faithful service—a serv- ice that called forth unstinted admiration and honors from all maritime nations—should have been treated by his own Gov- ernment as if he were an ordinary laborer, hired for a day’s work, and dropped without excuse or warning, is one of the things for which Americans have often had to hang their heads in shame. In any other country George Davidson would have had honors heaped upon him, and his old age would have been brightened by the thought that the country to which he had devoted his wonderful abilities had not forgotten the sacrifice, but delighted to honor the noble work of such a citizen. GEORGE W. DICKIE RALPH HARRISON SAMUEL B. CHRISTY Committee ' Ge pie Mee - PROCEEDINGS _ Fourth Series VOLUME I Pavedition ‘of the California Neademy of Stichces to the Galapagos Islands, 1905-1906. Pages 1-6. I. Preliminary Description of Four New Races of Gigantic Land Tortoises from the Galapagos Islands. By John Van Denburgh. (/ssued December 20, 1907)....... Sha wate aS _ Pages 7-288. II.-,.A Botanical Survey of the Galapagos -Islands. ~By Alban Stewart. Plates1-x1x. (lssued January 20, 1911)... “Pages 289-322, III. The Butterflies and Hawk-Moths of the Galapagos Islands. By Francis X. Williams. Plates xx—xxI. (Issued October 7, PITT oe SOROS cee IN or miata aes BUN Be ara eS Pages 323-374, IV. The Snakes of the @sisvados Islands. By ~ John Van Denburgh. Plates xxm- XXX. (Issued January 17, 1912) HS Pages 375-404. . V. Notes on the Botany ofCocos Island. By Alban Stewart. Plates xxx1-xxxiv. (/ssued January 19, 1912) Pages 405-430. VI. The Geckos of the Galapagos Archipelago. By John Van Denburgh: (Jssued April 16, 1912) 2.20.00. nee Pages 431-446. VII. Notes on the Lichens of the Galapagos ~ Islands. By Alban Stewart. (Zsswed December 17, LOT) a. as VOLUME Il, PART | Expedition of the California Acsdeny of- Sciences to ee : Galapagos Islands, 1905-1906. Pages 1-132... VIII. The Birds of the @ilapnecs ised with Observations on the Birds of Cocos and Clipperton Islands (Columbiformes, to Pelecaniformes). By Edward Winslow Gifford. Plates 1—-vit. (Lssued August LL, ALIS los) os era eee : Pages 133-202. IX. The Galapagoan Lizards of die Genus - Tropidurus; with Notes on the Iguanas of the Genera Conolophus and Amblyrhyncus. By John Van Denburgh and _ Joseph R. Slevin. Plates viti—-x1. (Issued September 19, 1913). - VOLUME III- — Pages ‘1-40. A Further Stratigraphic Study in the Mount Diablo Range of California. By Frank M. Anderson. late I. ee = Octogesr IL, LIDS) soe nc rp ae ee a oe ee eee Pages 41-48. Description of a New Species of Sea Snake from the ‘Philippine Islands, with a Note on the Palatine Teeth in the 5: Proteroglypha. By John Van Denburgh and Joseph C. seu i _ son. (Asad BIN al, oe) BON Poe Sree hiatoiee ores el Rane 50) woo) 29 PROCEEDINGS Fourth S eries VOLUME Ill—Continued Pages 49-56. New and Previously Unrecorded Ae of Reptiles and Amphibians from the Island of Formosa. By John Van Deénburgh.” (Ussved December: 20, L902) incr i. sdk Vs asiaas Others Pages 57-72. Water Birds of the Vicinity of Point Pinos, California. By Rollo Howard Beck. (lssued September 17, 1910) ......... Pages 73-146. The Neocene Deposits of Kern River, California, and the Temblor Basin. ByFrank M. Anderson. Plates I1-XIIl. (Lssued November 9, 1911) 0.00. cece ceed HSS REN e aie BENS ope Pages 147-154. Notes on a Collection of Reptiles from Southern California. and Arizona. By John Van~Denburgh. (/ssued SOMMATY AL LITO eo ane a ae ies pear ee Moa ANRC nee Mar (Vi Pages 155-160. Notes on Some Reptiles and Amphibians from Oregon, Idaho and Utah. By John Van Denburgh. (/sswed JAMUAIY D1, SLOLE) Ne Se OS Ba tka lh det Sieh ane ct ee ete Bree aC Pages 161-182. Geologic Range of Miocene Invertebrate Fossils of California. By James Perrin Smith. (Jsswed April 5, 19/2)... Pages 183-186.. Description of a New Genus and Species of Sala- mander from Japan. By Surgeon J. C. TROP SOD U.S. Navy. Platecxiv.. Cisswed May 3) WOT) ined esau eae ae ee a Pages 187-258. Concerning Certain Species of Reptiles and Am- phibians from China, Japan, the Loo Choo Islands, and Formosa. By John Van Denburgh. (J/sswed December 16, 1712.)........ Pages 259-264. Notes on Ascaphus, the Discoglossoid Toad of North America. By John Van Denburgh. (lssued December TRL OTE Vo ER che OR Mba ocho ie che cme boa: Menke ers WRENNER ale ROR Me eee Pages 265-390. A Distributional List of the Mammals of California. By Joseph Grinnell. Plates xv-xv1. (/ssued August 28, 1913) Pages 391-454. A List of the Amphibians and Reptiles of Arizona, with Notes on the Species in the Collection of the Academy. By John Van Denburgh and Joseph R. Slevin. Plates xv11— XXVIII. (Issued Movember 5, 19183) Wetec ee eae eee er ene gece se es VOLUME IV . Pages 1-13. I. Report of the President of the Academy for the Year 1913. II. George Davidson. (/ssued April 8, 19/4) ...... 5) 25 A206. oe 743) v20 50 20 75 < x Dosinia ponderosa Gray Glycymeris branneri Arnold Glycymeris, sp. Leda ochsneri, new species Macoma calcarea Gmelin Macoma nasuta Conrad x x Macoma ocoyana Conrad x Macoma piercei Arnold x|X x x XIX oR) |X| X| XK] KX] KX] KL KY KX 42 CALIFORNIA ACADEMY OF SCIENCES [ Proc. 4TH SER. ! Los . Vaqueros San Kern é Valley Juan River Pelecypoda. Mactra albaria Conrad Mactra catilliformis Conrad Mactra sectoris, new species Metis alta Conrad Mytilus mathewsonii Gabb Mytilus, sp. Ostrea eldridgei Arnold Panopea estrellana Conrad Pecten andersoni Arnold Pecten branneri Arnold Pecten magnolia Conrad Pecten nevadanus Conrad Pecten peckhami Gabb Pecten perrini Arnold Pecten sespeénsis Arnold Pecten vanvlecki Arnold Pecten vaughani Arnold Phacoides acutilineatus Conrad Phacoides richthofeni Gabb Phacoides sanctaecrucis Arnold Poromya gabbiana, new species Saxidomus nuttalli Conrad Semele morani, new species Tellina nevadaénsis, new species Tellina tenuistriata Davis Tellina wilsoni, new species Transennella joaquinensis, new species Venus pertenuis Gabb Yoldia temblorensis, new species |X| X |X| Xx | |X| Xx |X| Xx X| |X) X| XK) KL KX |X) x x x x|xX| x Gastropoda. Agasoma barkerianum Cooper Agasoma sanctacruzanum Arnold Agasoma sinuatum Gabb Amphissa posunculensis, new species Astyris pedroana Conrad Bathytoma keepi Arnold Bathytoma piercei Arnold Cancellaria condoni Anderson Cancellaria dalliana Anderson Cancellaria joaquinensis Anderson Cancellaria nevadaénsis, new species xX | Xx |X| XTX |X) KX XXXL XX |X| KK Vor. IV] ANDERSON AND MARTIN—NEOCENE RECORD 43 Los Ss K Vaqueros ena Rivet Valley Juan iver Gastropoda. Cancellaria pacifica Anderson Cancellaria posunculensis, new species Cancellaria sanjoseénsis, new species Cancellarif simplex Anderson Cerithium arnoldi, new species |X| XX X|X| XI X| xX x Chrysodomus kernensis, new species Conus hayesi Arnold Conus owenianus Anderson Crepidula praerupta Conrad Crepidula princeps Conrad Cuma biplicata Gabb iF Dentalium petricolum Dall Drillia antiselli, new species Drillia buwaldana, new species Drillia howei, new species Drillia kernensis, new species Drillia ochsneri, new species Drillia ocoyana, new species Drillia temblorensis, new species Drillia wilsoni, new species x Epitonium posoénsis, new species Epitonium williamsoni, new species Eulimella californica, new species Eulimella gabbiana, new species ? Eulimella ochsneri, new species Ficus kernianus (Cooper) x Fossarus dalli, new species Lacuna carpenteri, new species Melongena sanjuanensis, new species Nassa arnoldi Anderson Nassa antiselli, new species Nassa blakei, new species Nassa ocoyana, new species Natica inezana Conrad (?) Neverita callosa Gabb Niso antiselli, new species Oliva californica Anderson Oliva futheyana Anderson Olivella pedroana Conrad Pyramidella cooperi, new species Scaphander jugularis Conrad Sigaretus scopulosus Conrad x Siphonalia posoénsis, new species X|X|X| Xx |X x x |X| X| XK LX |x| X |X| XK] xX | KL X |X| X] | XTX |X| X| XX KX |X| X| XXX X| X|X 44 CALIFORNIA ACADEMY OF SCIENCES [ Proc. 4TH SER. Los Mateo tl ane ae Gastropoda. Thais vaquerosensis (Arnold) x Terebra cooperi Anderson x x Trochita costellata Conrad x x x Trophon gabbianum Anderson x x Trophon kernensis Anderson x x Turritella inezana Conrad x Turritella ocoyana Conrad x x Turritella variata Conrad x Monterey Shale-—As in many other localities in the Coast Ranges of California, the Temblor group is overlaid along the San Juan River by a series of light colored organic shales with apparent, though probably not actual, conformity. The strati- graphic position and lithologic character of these beds make them conspicuous, and their strong lithologic contrast with the terriginous beds which they overlie makes the mapping of their contact comparatively simple. As there is no evidence, faunal or other, that they form a part of the underlying group, they have been referred to as the Monterey division of the Neocene. Their composition varies considerably within this district, though the predominating type of rock appears to be a mixture of siliceous, organic and bituminous shale, with terriginous clay shale and fine sand. The purely diatomaceous shale is much less prominent than in other areas where the Monterey group abounds. In the lower part of the group there is a large percentage of clay shale interstratified with siliceous, bituminous layers, while higher up organic materials are not prominent. In the northern part of Sec. 28, T. 28 S., R. 14 E., the lower part of the group consists to a large extent of light pumiceous rocks which are probably in part of volcanic origin. With this exception the Monterey rocks are largely a mixture of fine sandy clay and siliceous organic materials. The rocks of this type outcrop almost entirely across the San Juan district, in a zone parallel with the Temblor strata. To some extent and in some places they are covered by deposits of later age. Vou. IV] ANDERSON AND MARTIN—NEOCENE RECORD 45 The Monterey group, as in all other localities where it occurs, is conspicuously unfossiliferous, except for the micro- scopic organisms which are of little value for correlation. ‘The average thickness of the beds is between 600 and 1000 feet. The Santa Margarita Group.—Overlying the Monterey group is a thick aggregate of strata consisting of gravelly sands, conglomerates, granitic sandstones and sandy clays that form a distinct group, lithologically. It is here classed as the Santa Margarita group, though perhaps the equivalent of the San Pablo of the Mount Diablo region. Although this group of strata appears to have a much greater thickness and to con- tain older beds than the Santa Margarita formation does in its type locality, for reasons which will be given later, it has been included entirely under this name. The Santa Margarita group, as well shown toward the southern part of the district, is unconformable upon the older groups, and although in some localities its relations are obscure, the evidence of uncon- formity is satisfactory in others. The Santa Margarita group is the most prominent in the San Juan district on account of its thickness and great areal distribution. In the western part of the district it occurs as a long narrow zone parallel and adjacent to that of the Monterey shale. In the eastern part of the area the Santa Margarita outcrops in a rectangular zone which parallels and flanks San Juan River. If the covering of stream gravels and alluvium were removed from the surface, the Santa Margarita would be found to occupy nearly half of the San Juan district on the north and east. At the base of the series there is a thin zone of soft, sandy clay shales which grade downward into the Monterey and up- ward into medium grained sandstone which is followed above by coarse arkosic sandstone and gravelly sands. The latter pre- dominate throughout the formation, although there are numer- ous layers of soft sandy clays interstratified with the coarser sediments. East of the San Juan River, in the central part of T. 29 S., R. 17 E., the formation is composed almost entirely of coarse granitic material which is often so well cemented by the lime from fossil invertebrates that it stands out prom- inently on the hillsides in rugged outcrops. 46 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. A careful measurement of the thickness of these beds is difficult on account of numerous folds in the formation. The minimum thickness is estimated at 1500 feet and in many places it cannot be less than 2500 feet. The correlation of these beds with the Santa Margarita formation need not depend alone upon the invertebrate fossils found in them. The character of the sediments and their stratigraphic position is almost as convincing as their fauna. A careful working out of the faunal zones in the Santa Mar- garita formation would doubtless enable us to correlate them with great accuracy as to detail. However, as this has not been possible in the present work the writers are not able to give an exact paleontological correlation of their various mem- bers. There is some stratigraphic evidence, however, that is worth consideration. The Santa Margarita in its type locality lies unconformably upon the Monterey group. This uncon- formity is marked by the presence of numerous angular frag- ments of Monterey shale in the basal beds and also, in some localities by a discordance in the attitude of the strata. In some parts of the San Juan district the Santa Margarita is apparently conformable upon the underlying Monterey, and the separation between the two is made largely upon the litho- logic characters. In the Mount Diablo region the relations of the San Pablo formation to the underlying Contra Costa County Miocene, the middle and upper parts of which are probably the equivalent of the Monterey, while in some places obscure, and in general apparently conformable, there are nevertheless a few localities where there is evidence of uncon- formity. Further south in the Mount Diablo Range there is quite definite evidence in certain districts of unconformity be- tween the Santa Margarita and Monterey Shale. On the east- ward slopes of the Santa Lucia Range, west of the Salinas Valley, the Santa Margarita is certainly unconformable upon the Monterey in numerous localities. It thus appears that during the deposition of the Santa Margarita vertical movements took place along the Santa Lucia Range, and probably likewise in the Mount Diablo Range, allowing a portion of the basin of deposition to be raised above sea level while the area now occupied by the San Juan district remained undisturbed and received continuous deposits. These Vou. IV] ANDERSON AND MARTIN—NEOCENE RECORD 47 uplifts taking place at the close of Monterey time and continu- ing during the early part of Santa Margarita (San Pablo) time, followed by subsidence, resulted in the absence of the lower beds in the areas that were elevated. In the San Juan district where deposition was continuous the whole series is present, while along the eastern slope of the Santa Lucia Range only the middle and upper portion is represented. The charac- ter of the sediments and the comparatively small thickness of the beds at Santa Margarita agree in support of this explana- tion. In the region of Mount Diablo and Pinole, if the San Pablo is conformable upon the underlying beds, as it appears to be, we have the same condition that is here described, and the Santa Margarita of the San Juan district could be the equivalent of the San Pablo. The following species were ob- tained from the Santa Margarita of the San Juan district, and warrant the approximate correlation of these beds with both :— Astrodapsis antiselli Conrad Astrodapsis tumidus Remond Astrodapsis whitney: Remond Chione, sp., a Chione, sp., b Macoma nasuta Conrad Ostrea panzana Conrad Ostrea titan Conrad Phacoides, sp. Pecten crassicardo Conrad Pecten estrellanus Conrad Pecten sancti-ludovict, n. sp. Trophon carisaensis Anderson Turritella carrisaénsis, 1. sp. Tamiosoma gregaria Conrad Etchegoin Group.—The occurrence of the Etchegoin group within the limits of the San Juan district has not been recog- mizedy neither) Was, ity been yicis proved) yarn tewny tailesy 1 the east of the San Juan ranch house there are thick beds of clays, sands and gravels dipping to the westward that may in part belong to this group. In their physical appearance they are not unlike beds of Etchegoin age in the region of the Kettleman Hills. These beds of possible Etchegoin age are December 30, 1914. 48 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. covered by well stratified beds of the following group in which freshwater shells have been found plentifully in certain locali- ties. Paso Robles Formation.—The Santa Margarita is overlaid unconformably by a series of gravelly sands and sandy clays that are, in part, at least a portion of the formation which is prominently developed in the Salinas Valley, and which has there been called by the name, Paso Robles formation, and has been supposed to be of freshwater origin. The limits and distribution of this formation along the San Juan River are rather obscure, and it is difficult to separate it from the stream gravels and alluvium which is believed to be largely of Quaternary age. In the canyons east of the San Juan River, and dipping at a considerable angle westerly are sandstones and gravels with interstratified beds of clay which rest upon strata of possible Etchegoin age. These overlying strata contain numerous shells of freshwater mollusks. Among the species collected from these beds are Lymnea cubensis Lea, Lymnea, cf. obrussa Say, Physa heterostropha Hald?, and Planorbis, sp. Along the northern and eastern parts of the district the Miocene is extensively covered by the Paso Robles formation which appears to have once extended entirely across the range in the vicinity of Polonia Pass, and to have been connected with similar beds in the Great Valley. In former papers these Paso Robles beds have been corre- lated* with the Tulare group which is known to extend into the Antelope Valley on the west side of the Temblor Range. Stream Gravels.—Overlying all of the older formations and groups from the basement rocks to the Paso Robles there are beds of stream gravels and alluvium widely spread over the entire district. These gravels mantle large areas of the Mio- cene in the central and eastern half of the San Juan district. They consist of pebbles of quartzite, sandstone, limestone, granite and basalt. They cover the Miocene rocks in all the higher portions of the eastern part of the district to a depth of from one foot to 200 or 300 feet. In general, the Miocene 1 Proc. Calif. Acad. Sci., Vol. III, page 32. Vor. IV] ANDERSON AND MARTIN—NEOCENE RECORD 49 rocks are exposed only where stream erosion has removed the mantle of gravels. These deposits were eroded: from the higher portions of the San Jose Range by the agency of streams and laid down again upon the surface of the Miocene. An unusual development of these gravels can be seen in the MOGen-centrall pare Or. 29) 5) Reo bland inthe souchern part of T. 28 S., R. 16 E., between Navajoa Creek and Cam- mattii Canyon. In viewing this region from a distance it appears as a nearly level tableland standing out in sharp contrast to the adjacent hills. Closer observation discloses numerous wide ravines cutting deeply into the apparently flat surface. The areas between these ravines are flat, producing the tableland appearance. The rock exposed in the beds of the ravines is gravel, indicating that the Miocene beds have been covered by them to the depth of the ravines themselves, which in some cases is more than 250 feet. In no locality be- tween the Navajoa Creek and Cammattit Canyon do the Miocene beds outcrop. In the hills east of Navajoa Creek and also west of Cammattii Canyon, rocks of the Miocene group are exposed at elevations far above the beds of the ravines described above. The explanation of this peculiar condition is that the Navajoa Creek has in former time swung back and forth between Cammattii Canyon and its present position, re- moving all of the Miocene rocks to the depth at least of the present beds of the ravines. This removal of the Miocene rocks from the area probably took place during an epoch of uplift. When the region subsequently sank the flood plain of the Navajoa was aggraded and filled by stream gravels or alluvium at least to its present thickness. Whether these gravels repre- sent remnants of the Paso Robles formation, or not, is a de- batable question. In many localities they are associated with sands and clays which are also a part of the Paso Robles forma- tiona) inthe) southern pant on) they distmet there isa lange area of gravels which is apparently due entirely to stream action. The gravels are distributed over the Miocene sedi- ments almost as far back as the edge of the granite area of the San Jose Range. Along the northern and eastern parts of the San Juan district the Miocene is entirely covered by these gravels, which are in part Paso Robles. 50 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. Structure.—The structural features of the San Juan dis- trict are best explained and understood with respect to the topography, geology, and dynamic history of the surrounding ranges and of the region. The district lying, as has been explained, between the San Jose Range on the southwest and the Temblor Range on the northeast, occupies a zone of low foot hills of younger strata intervening and bordering upon both. The dynamic agency that has effected the uplift of these ranges in earlier epochs has been regional and compressive, acting from southwest to north- east, in a direction at right angles to their trend. If at one effort or epoch it has elevated the main ranges, or initiated the main folds of the region, at later epochs it has developed the minor folds in the younger and more yielding strata lying between. The final result of the thrust movement as expressed in the Tertiary strata along the San Juan River and throughout the district is the development of a number of local and discon- tinuous anticlines and synclines within the general area of the trough, which therefore might be called a synclinorium. Along the southwest border of the sedimentary area the strata lie upon the granitic basement dipping away at angles between 10° and 30° toward the northeast. In the Santa Margarita formation which is the only one exposed over a large part of the district, three or four sharp anticlinal folds have been formed having northwest and south- east axes, that continue longitudinally for limited distances and then plunge or disappear into local synclines with which they are in alignment. The dip on either side of the folds is often so steep as to approach the vertical, and the transverse shortening of the section from northeast to southwest must have been considerable. This area of intense folding extends for only a limited distance to the northwest toward the Salinas Valley, while to the southeast it may be followed toward the closely folded area of the Cuyama River and beyond. Of the anticlines developed in this area the most conspicuous and persistent is that lying along the western border of the Carrizo Plains, extending from the north side of T. 30 S., R. 18 E., toward the northwest for 15 or more miles, disappear- ing: in the northern part oni 27 Si ik loy Ee iinis) soley es — il Vor. IV] ANDERSON AND MARTIN—NEOCENE RECORD 51 volves all three members of the Miocene series. It is flanked on the southwest by some smaller folds of much less extent. Faulting has taken place along and parallel to several of the folds, but it is not prominent and needs no special considera- tion here. The regional disturbances which have originated the fold- ings along the San Juan River have developed at the same time similar structures in many other districts within and probably without the Temblor basin, as described in the first part of this paper. ECONOMIC GEOLOGY The San Juan district is very largely devoted to stock rais- ing and farming, and there are so far no industries based upon any mineral deposits. There are, however, some deposits of greater or less prospective merits and that may properly be described here. Oil and Gas.—The San Juan district has been shown to contain a good development of the formations which are oil- bearing in other parts of the state and within the San Joaquin Valley, and to contain also some favorable structures, such as would appear attractive if located within the border of this valley. Moreover, there are evidences of the escape of gases in the past from the formations exposed at different points along the San Juan River, and some slight signs of oil have been de- tected in wells sunk into the bituminous shales to the west of the river. These and other “indications” have induced some prospecting to be done for oil, and many have regarded its ‘discovery in commercial quantities as a possibility, and this will not be denied. However, the major folds in which oil could be stored have been dissected in such a manner by stream action, that if oil were present in large quantities it would be expected to make itself evident in oil saturations of the surface rocks, or in ac- cumulations of asphaltum at the surface. No oil has yet been proved by actual drilling and wide areas on the flanks of the anticlines from which large deposits could be derived are not present. In other words the country available as a primary source of oil is quite restricted, and from this point of view, at least, commercial deposits do not appear likely. 52 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47H SER. Gold.—The only mineral of economic consequence that has been found in this district is gold. The stream gravels oc- curring along the canyons, especially on the Navajoa creek near the granite area, and along the small canyon one mile west of La Panza Post Office have been found to be gold bear- ing. During the period from 1880 to 1886 considerable inter- est was felt in these localities on account of the discovery of gold, and some placer mining was done along the stream beds but no large mines were developed. As a matter of history this district was known to contain gold before it was discovered by Marshall in 1848 at Coloma. It is stated that over $1,000,000.00 in gold has been taken from these placers.* The De La Guerra gulch was the principal source of the gold. Other Metals.—There are deposits and veins of other metals, as hematite and chromic iron, known in certain parts of the district, though they are perhaps not important. On Section 25, Township 30 South, Range 17 East, there is an outcrop of iron gossan that can be followed for a distance of 1000 feet or more along the east side of the San Juan River. It appears to have a thickness of five to eight feet and to cut through an exposure of aplitic rock from north to south, with a steep westerly dip. It is not unlikely that this vein of gos- san may mark the surface outcrop of a metalliferous vein other than iron. Exploration might reveal the presence of copper sulphides. DESCRIPTIONS OF SPECIES. ECHINODERMATA. Genus ASTRODAPSIS Conrad Astrodapsis peltoides, new species Plate 2, figure 2 All of the specimens of this species are of moderate size, suboval or elliptical, moderately elevated, as in Astrodapsis whitneyt Remond; ambulacral areas bordered by shallow but distinct grooves, forming narrow ambulacral ridges and dis- 18th Rept. State Min. 1888, p. 530. Vou. IV] ANDERSON AND MARTIN—NEOCENE RECORD 53 sected triangular interspaces; ambulacral ridges with slight grooved trough and distinct notch on the periphery. Dimensions :—Length of the type specimen, 65 mm. ; width, 55 mm.; altitude, 17 mm. Occurrence :—This species occurs at various horizons in the Santa Margarita Formation of the Coalinga district, south of Waltham Creek. It is, however, most abundant in the Trophon zone, a little above the base of the Santa Margarita. ‘This species does not appear to be related very closely to A. whitneyi Remond. Type :—No. 102, Cal. Acad. Sci., Trophon zone, East of Jacalitos Creek, Coalinga, Fresno County, Cal., Lower Santa Margarita Beds. Collector, F. M. Anderson. IDLE WIOIDVAN Genus LEDA Schumacher Leda ochsneri, new species Plate 3, figures 8a, 8b and 8c Shell small, slightly arcuate anteriorly, excavated behind the beaks, rostrate and acute with valves closed at the posterior extremity; basal margin strongly and regularly arcuate, or sometimes slightly truncated at the rear; surface marked with strong concentric lines, polished ; posterior ends bearing a shal- low oblique groove extending downward from the beaks. This shell resembles Leda taphria Dall, of which it may be the precursor, but it is relatively thicker, less elevated, and less clearly truncated behind. Dimensions :—Length, 16 to 20 mm.; altitude, 9 to 10 mm. ; thickness, 8 mm. Occurrence :—Lower Miocene of Kern River, Kern County, California, at locality 68. Type :—No. 103, and cotypes Nos. 104 and 105, Cal. Acad. Sci., on north bank of Kern River about 34 mile west of the power plant and about 3 miles east of the Rio Bravo ranch homse Mera ‘River Wer) County, California, 9 Goll jie: Buwalda. Named in honor of Mr. W. H. Ochsner. 54 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. Genus YOLDIA Moller Yoldia temblorensis, new species Plate 3, figure 3 Shell small, oblong ovate, thin, arcuate on lower margin, nearly straight above; beaks central, inconspicuous; hinge margin bent only six degrees from a straight line; anterior end well rounded; posterior end rostrate, almost pointed, slightly open, angulated by an impressed line extending from the beaks downward to the posterior end below the siphonal opening; anterior end similarly crossed by an impressed zone extending from the beaks obliquely downward and forward; surface sculptured by regular lines of growth. Dimensions :—Length, 18 mm.; width, 7.5 mm. Occurrence :—Lower Miocene of Kern River, California, locality 68. Type:—No. 106, Cal. Acad. Sci., on north bank of Kern River about 34 mile west of the power plant and about 3 miles east of the Rio Bravo ranch house, Kern County, California. Coll., J. P. Buwalda. Yoldia newcombi, new species Plate 3, figure 2 Shell small, thin, compressed, ovally elongated ; valves equal, very inequilateral, greatly attenuated behind; beaks small, slightly raised, near the anterior extremity; escutcheon lan- ceolate, very long, bordered by a narrow groove; lunule indis- tinct; anterior dorsal margin short, nearly straight; anterior end well rounded; base ovately rounded; posterior extremity tapering to a narrow, rounded end, gaping; posterior dorsal margin broadly concave, with the opposed margins projecting above the escutcheon; posterior dorsal area flattened ; umbones inconspicuous ; interior inaccessible. Dimensions :—Length, 14 mm.; length of rostrum, 10.5 mi. ; altitude, 5 mm.; thickness of both valves, 2.2 mm. Occurrence :—Lower Miocene of Clallam County, Wash- ington, locality 213. This species can be easily recognized by its small size and long rostrum. Vor. IV] ANDERSON AND MARTIN—NEOCENE RECORD 55) Type :—No. 237, Cal. Acad. Sci., in sea-cliff 14 mile west of Twin Post Office, Clallam County, Washington. Coll., Bruce Martin. Named in honor of Dr. C. F. Newcombe. Genus PECTEN Miller Pecten sancti-ludovici, new species Plate 3, figures 10a and 10b Shell of moderate size, equivalve, inequilateral, strongly ribbed, moderately inflated; umbones narrow and acute; each valve with nineteen or twenty ribs, rounded on the back and separated by narrow V-shaped interspaces; ribs ornamented by about six riblets forming fasciculi more or less beaded or roughened, not spiny; ears unequal, the anterior being nearly twice the length of the posterior, and on the right valve coarsely ribbed; posterior ear smaller and ornamented with wavy radial threads. Dimensions :—Altitude of the type specimen, 40 mm. ; width, 37 mm. ; thickness, both valves, 19 mm. This species differs from Pecten hastatus Sowerby, by hav- ing uniform riblets. Type :—No. 107, and cotype No. 108, Cal. Acad. Sci., from the Santa Margarita formation along the west side of the San Juan River about one half mile above the mouth of Navajoa Creek, northeastern San Luis Obispo County, California. Coll., Bruce Martin. Pecten etchegoini Anderson Pecten etchegoini Anderson, Proc. Calif. Acad. Sciences, vol, 2, p. 198, pl. 18, figures 92-93, 1905. Pecten (Chlamys) wattsi var. morani Arnold, U. S. G. S. Professional Paper No. 47, pp. 121-122, pl. 10, figs. 3, 4, 5, and 6, 1906. Pecten (Chlamys) wattsi Arnold, var. etchegoini Anderson, Y. S. G. S. Bull. 396, p. 77, 1909. As the above named antedates the species and variety names proposed by Arnold, by at least a year, by the rules of pre- cedence it should stand, and if there are varietal forms that merit distinct names these forms should be regarded as sub- species of Pecten etchegoini Anderson. 56 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47H SER Genus POROMYA Forbes Poromya gabbiana, new species Plate 3, figures 7a and 7b Shell of medium size, thin, convex, elongate, subquadrate, equivalve, inequilateral; beaks turned inward; umbones incon- spicuous, a little anterior to the center; extremities well rounded; anterior dorsal margin slightly convex; posterior dorsal margin concave; base straight, parallel to the dorsal margin, contracted in the middle; surface sculptured with numerous fine concentric lines and small, almost invisible, radial striations, these crossed diagonally by low distant ridges that originate on the posterior dorsal margin, making a sharp convex bend toward the beaks, and then curving gradually downward toward the anterior ventral margin and disappear- ing on the dorsal area; there are fifteen of these ridges on the type specimen, and nearly twice that number on some of the cotypes; one cardinal tooth in each valve, the cardinal in the left valve diagonally elongate; lhgament external; muscular impressions inaccessible. Dimensions :—Leneth of the type, 46 mm.; altitude, 22.5 mim. ; diameter of single valve, 8 mm. Occurrence :—Lower Miocene of San Luis Obispo County, California, locality 126. The living members of this genus are subtropical in habitat. None has been reported from the Miocene of California pre- vious to this account. Type:—No. 109, and cotype Ne ITO; Calne Acad te Sci rait bed of a small creek near the center of Sec. 34, T. 28 S., R. 15 E., San Luis Obispo County, California. Coll., Bruce Martin. Named in honor of Wm. Gabb. Genus DIPLODONTA Bronn Diplodonta buwaldana, new species Plate 3, figures la and 1b Shell small, thick, subcircular in outline, inflated; valves equal, inequilateral, slightly elevated in front of the beaks; beaks prominent, elevated, turned forward, slightly anterior to Vot. IV] ANDERSON AND MARTIN—NEOCENE RECORD 57 the center; umbones full and broad; lunule indistinct; hinge line broadly arched; dorsal margins nearly straight in some specimens, slightly rounded in others ; extremities well rounded, the posterior usually more broadly rounded than the anterior ; basal margin circular; surface polished, marked by numerous fine concentric lines of growth; two teeth in each valve, the right posterior tooth faintly bifid; muscular impressions inac- cessible. Dimensions :—Length of one of the larger specimens, 21 mm. ; altitude, 19 mm.; thickness of single valve, 7 mm. Occurrence :—Not uncommon in the middle portion of the lower Miocene of Kern River, California, locality 65. This species differs from Diplodonta parilis Conrad and D. harfordi Anderson by its inflated valves, much more prominent umbones, and more elevated beaks. Type:—No. 111, and cotype No. 112, Cal. Acad. Sci., on west bank of a small canyon 144 miles northeast of Barker’s ranch house, Kern County, California. Coll., Bruce Martin. Named in honor of Mr. J. P. Buwalda. Genus CARDIUM Linn. Cardium weaveri, new species Plate 1, figures 3a and 3b Shell of medium size, rounded at the base, somewhat trigo- nal, inflated; umbones prominent, curved inward and forward; anterior dorsal slope short and slightly concave with a cordate area immediately in front of the beaks; posterior dorsal slope long and slightly convex making a rather sharp curve into the arcuate base; a conspicuous ridge from the beaks to the pos- terior ventral extremity, giving the valves an angulated appear- ance and forming a prominent posterior dorsal area in each valve; sculpture consisting of numerous equally spaced radial striations which are replaced on the posterior dorsal area by flattened radial ribs separated by narrow interspaces, the radial ribs becoming obsolete near the margin; about twenty radial ribs on the posterior dorsal area, and between fifty-five and sixty fine radial striations on the remainder of the surface; hinge, typical of the genus Cardium. 58 CALIFORNIA ACADEMY QF SCIENCES [Proc. 47H Ser. & Dimensions :—Length of the type specimen, 50 mm.; alti- tude, 48 mm.; thickness, 38 mm. Occurrence:—Lower Miocene, or possibly Oligocene, of northwestern Oregon and western Washington. . The type was obtained from the bluffs at the west end of the railroad tunnel about three miles southeast of Timber, Oregon. This species can be easily distinguished by its peculiar radial sculpture. A number of species of Cardium from the west coast of North America have less prominent sculpture on the pos- terior dorsal area than on the remainder of the surface. In this species the reverse is true. Type :—No. 113, and cotype No. 114, Cal. Acad. Sci., from bluffs at the west end of the railroad tunnel about three miles southeast of Timber, Oregon. Coll., Bruce Martin. Named in honor of Professor Charles E. Weaver, University of Washington. Genus CHIONE Chione panzana, new species Plate 1, figures la and 1b Shell large, heavy, subtriangular in outline; valves equal, inequilateral, convex, inflated; beaks elevated, turned inward and forward, about one-third the length of the shell from the anterior extremity; umbones full; lunule large, cordate, de- pressed, sculptured by numerous fine concentric lines, bordered by a narrow groove; escutcheon lanceolate, extending almost to the posterior extremity, crossed by the concentric sculpture; posterior dorsal slope arcuate; anterior dorsal margin strongly excavated in front of the beaks; extremities rather sharply rounded; base arcuate, crenulated within; surface marked by numerous strong, concentric ridges, somewhat irregularly spaced, and many small radiating ribs which are a little less conspicuous than the concentric ridges; hinge plate heavy, with three cardinal teeth, the middle one bifid. Dimensions :—Length, 78 mm.; altitude, 69 mm.; thickness of single valve, 22 mm. Occurrence:—Lower Miocene of northeastern San Luis Obispo County, California, the type from locality 53. Vor. IV] ANDERSON AND MARTIN—NEOCENE RECORD 59 This species is related to Chione securis Shumard, but differs from it in having fainter crenulations, finer radial lines, curved dorsal border, and narrower escutcheon. It is also much less subtriangular in outline than the latter species. It differs from Chione temblorensis Anderson, in not having the angulated posterior ridge nor the prominent concentric ridges. iiype Now Its andicotype Now WG, Cal) Acady Sem, San Luis Obispo County, California, in a small creek about 34 of a mile southwest of Lewis House, near the center of the S. E. TAO See 22 2O) SRY) lov Wit! Bo Ws and Nie Collie Bruce Martin. Chione margaritana, new species Plate 2, figure 1 Shell large, subelliptical, very inequilateral; valves equal, convex, inflated; beaks near the anterior margin, not elevated, turned forward; umbones full, narrow; lunule very large, sunken, concentrically striated, bordered by narrow groove; escutcheon broad and long, concentrically striated; posterior dorsal margin long, slightly arcuate; anterior margin strongly excavated in front of the beaks, rather sharply rounded near the base; basal margin broadly arcuate, crenulated within; pos- terior extremity evenly rounded; surface sculptured with numerous coarse, nearly equally spaced, radiating ribs and fine concentric striations which are irregularly raised, forming concentric ruffles; the radiating ribs absent on the posterior dorsal area; interior inaccessible. Dimensions :—Length of the figured specimen, 108 mm.; altitude, 83 mm. ; thickness of the right valve, 38 mm. Type :—No. 117, Cal. Acad. Sci., from the top of the Santa Mancaritaibeds inthe Nee ZVenicee. 2a ih) 21'S Sv la ik Uncommon in the Santa Margarita beds of the Coalinga region. Chione (Lirophora) latilaminosa, new species Plate 1, figures 2a, 2b and 2c Shell small, trigonal, convex, depressed, very strongly char- acterized by prominent lamellz; valves equal, inequilateral; beaks prominent, turned forward, near the anterior margin of the shell; basal margin semicircular, crenulated within; cardinal 60 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47H Serr. margins nearly straight, meeting in almost a right angle; lunule distinct, bordered by an impressed line and marked with fine concentric striations; escutcheon large, lanceolate, sloping in- ward, the lamellz stopping abruptly at its outer margin; sur- face ornamented with five or six very prominent reflexed con- centric lamelle, numerous fine concentric lines of growth, and fine radial striations which are hardly visible on some speci- mens; the concentric lamella are wavy and thin on the mar- gins but thick at the base; hinge line angulated, with three car- dinal teeth in each valve, the middle one usually bifid. Dimensions :—Length of the type specimen, 15 mm.; alti- tude, 8 mm.; thickness of a single valve, 4.5 mm. Occurrence :—Not uncommon in the middle portion of the lower Miocene of Kern River, California, locality 65. Type :—No. 118, and cotypes Nos. 119 and 120, Cal. Acad. Sci., on west bank of a small canyon 14% miles northeast of Barker’s ranch house, Kern County, California. Coll., Bruce Martin. Genus TRANSENNELLA Dall Transennella joaquinensis, new species Plate 3, figures 6a, 6b and 6c Shell small, solid, circular in outline; valves equal, inequi- lateral, convex; beaks elevated, turned forward a little anterior to the middle; umbones full; dorsal margin concave in front of the beaks, nearly straight behind; extremities well rounded; base arcuate; surface marked with numerous fine concentric lines ; lunule cordate, bordered by an impressed line ; hinge plate of the left valve with three cardinal teeth and one anterior lateral which is elongated diagonally; the middle cardinal not distinctly bifid; pallial sinus small and shallow. Dimensions :—Length of the type specimen, 8 mm. ; altitude, 7.5 mm. ; thickness of the right valve, 2.5 mm. Occurrence :—Not uncommon in the lower Miocene of Kern River, California, locality 65. This species can be separated from Transennella tantilla Gould and T. californica Arnold, by its less elongated form, more elevated beaks, and more prominent umbones. Vor. IV] ANDERSON AND MARTIN—NEOCENE RECORD 61 Type :—No. 120, and cotypes Nos 121 and 122, Cal. Acad. Sci., on west bank of a small canyon 1% miles northeast of Barker’s ranch house, Kern County, California. Coll., Bruce Martin. Genus TELLINA Linn Tellina nevadensis, new species Plate 2, figures 3a, 3b and 3c Shell large for the genus, compressed, inequilateral, inequi- valve; beaks prominent; anterior end evenly rounded; ventral margin broadly arcuate; posterior end rostrate and bent to the right, obliquely truncated; posterior dorsal margin straight from the beaks to the truncation; a prominent fold and a con- cave flexure extending from the umbones to the posterior ven- tral extremity and bordering the posterior dorsal area in either valve; right valve convex; left valve nearly flat ; surface marked with concentric ridges corresponding to the lines of growth and fine radial lines which are invisible on worn specimens; hinge plate narrow, with two cardinal and two lateral teeth in the right valve, and two cardinal teeth in the left valve; the pos- terior cardinal in the right valve bifid; muscular impressions large and distinct; pallial sinus very deep, extending almost to the anterior adductor; a thickened obscure ray extending diagonally across the anterior portion of the shell behind the anterior adductor. Dimensions :—Length of the type specimen, 54 mm.; alti- tude, 34 mm.; diameter of the right valve, 7 mm. The type consists of one perfect right valve which is accompanied by the left valve of acotype. Length of the largest specimen, 75 mm. ; altitude, 45 mm.; diameter, both valves, 11 mm. Occurrence:—The type specimen was obtained from the lower Miocene of Kern River, California, locality 65. Other specimens were obtained from the same horizon in the north- eastern part of San Luis Obispo County, locality 126. This species resembles Macoma nasuta Conrad and Macoma piercei Arnold in general outline. It may be distinguished from these species by the lateral teeth in the right valve, the radial sculpture, and the prominent concave flexure on the posterior portion. 62 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. Type :—No. 124, and cotypes Nos. 125 and 126, Cal. Acad. Sci., in bed of small creek, near the center of Sec. 34, T. 28 S., R. 15 E., San Luis Obispo County, California. Coll., Bruce Martin. Tellina wilsoni, new species Plate 3, figures lla and 11b. Shell small, eight to ten millimeters in length, convex, moder- ately inflated ; valves unequal, inequilateral ; beaks conspicuous, within the posterior third; anterior dorsal margin long and straight, nearly parallel to the base; anterior extremity well- rounded; basal margin very slightly arcuate; posterior dorsal margin truncated, sloping sharply downward to the posterior extremity which is sharply rounded into the base; posterior end compressed, flexuous, curved to the right; surface marked by very fine concentric lines of growth which are usually invisible to the unaided eye. Dimensions :—Length of the type specimen, 9 mm.; altitude, 6 mm.; thickness of the right valve, 2 mm.; thickness of both valves, 444 mm. Occurrence :—Not uncommon in the lower Miocene of San Luis Obispo County and of the Kern River region, California. The type specimen, No. 127, Cal. Acad. Sci., was obtained from locality 126. Genus SEMELE Schum. Semele morani, new species Plate 3, figure 4. Shell of moderate size, compressed, thin, subelliptical in out- line; valves equal, convex, inequilateral, the anterior end slightly longer than the posterior; extremities well-rounded ; ventral margin arcuate; beaks prominent, turned forward, ex- cavated in front; anterior dorsal margin broadly convex; pos- terior dorsal margin nearly straight; lunule long and narrow, sunken, surface marked by numerous concentric lines of growth; a prominent flexure or furrow extending from the beaks to the posterior ventral margin; interior inaccessible. Vot. IV] ANDERSON AND MARTIN—NEOCENE RECORD 63 Dimensions :—Length of the figured specimen, 25 mm.; alti- tude, 21 mm. ; thickness of both valves, 8.5 mm. Occurrence:—Uncommon in the lower Miocene of north- eastern San Luis Obispo County, California, locality 126. Type :—No. 129, Cal. Acad. Sci., in the bed of a small creek Meat Me Center OlSEe 344.25 So Relate. Sani luis Obispo County, California. Coll., Bruce Martin. Named in honor of Mr. R. B. Moran. Genus DONAX Linn. Donax triangulata, new species Plate 3, figure 9. Valves small, thin, trigonal, convex; beaks a little anterior to the middle; dorsal margins nearly straight; anterior ex- tremity rounded; basal margin nearly straight; posterior end sharply rounded; an umbonal angulation extending from the beaks to the anterior and posterior extremities, forming areas sculptured with six or seven radial ribs; left valve with one cardinal and two lateral teeth; ends crenulated within ; muscular impressions indistinct. Dimensions :—Altitude of the left valve, 5 mm.; length, 9 mm. ; diameter of the left valve, 2 mm. Occurrence :—Lower Miocene of Kern River, Kern County, California, locality 65. Type :—No. 130, Cal. Acad. Sci., on west bank of a small canyon 1% miles northeast of Barker’s ranch house, Kern County, California. Genus MACTRA Linn. Mactra sectoris, new species Plate 3, figures 5a, 5b, 5c, 5d, and 5e. Shell small, trigonal, equivalve, inequilateral, almost a quad- rant of a spheno-discoidal solid; valves convex, inflated ; beaks prominent, elevated, curved inward and forward; the forward dorsal margin slightly concave; posterior, slightly convex or straight; basal margin circular; ends sharply rounded, the an- terior usually more so than the posterior ; surface showing only December 30, 1914. 64 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER concentric lines of growth which disappear on the earlier por- tions of the shell; a prominent ridge or angulation extending from the beaks diagonally to the posterior extremity; hinge typical of this genus; muscular impressions inaccessible. Dimensions :—Altitude, 9 to 10 mm.; length, 10 to 13 mm.; thickness, 6 to 7 mm. Occurrence :—Found abundantly in the lower Miocene of Kern River, California, locality 69. Though much smaller in size, the shells of this species are almost exact prototypes of Spisula exoleta Gray as figured and described by Arnold, and as represented by a sample collected at San Diego. More than one hundred specimens of M. sectoris were obtained from the locality given above, and they were all nearly equal in size, there being no gradation between them and larger specimens. This fact seems sufficient to warrant its de- scription as a new species. Type :—No. 131, and cotype No. 132, Cal. Acad. Sci., on the south and west slopes of Pyramid Hills, about 15 miles north- east of Bakersfield. GASTROPODA Genus CALLIOSTOMA Swains. Callistoma pacificum, new species Plate 8, figures 2a and 2b. Shell conical, thick, with about five convex whorls; spire moderately high; whorls of the spire ornamented with ten almost equally prominent spiral threads separated by narrower interspaces; two of the spiral threads nearest the posterior margin are centrally grooved; suture distinct, impressed ; body- whorl slightly concave near the suture, convex over the central portion, sharply rounded at the base, sculptured the same as the whorls of the spire; the base ornamented with eighteen or twenty very fine spiral lines; aperture subcircular; outer lip smooth ; columella thickened and incrusted. Dimensions :—Altitude of the type specimen, 15 mm. ; diam- eter of the last whorl, 14.5 mm. Vor. IV] ANDERSON AND MARTIN—NEOCENE RECORD 65 Occurrence :—Miocene of the Oregon coast, five miles north of Yaquina Bay, locality 36. This species is very similar to the recent and fossil species, Calliostoma costatum Martyn, but can be distinguished from the latter by the fine spiral sculpture on the base. The base of C. costatum is sculptured the same as the whorls of the spire. Type :—No. 134, and cotype No. 133, Cal. Acad. Sci., one- half mile north of Yaquina Head, Lincoln County, Oregon. Genus NISO Risso Niso (?) antiselli, new species Plate 7, figure 22. Shell small, smooth, with six whorls; spire conical, upper whorls absent in the type specimen ; whorls nearly flat, tapering toward the apex, unsculptured; suture appressed; body-whorl sharply angulated at the periphery; base convex, with a dis- tinct umbilicus; aperture quadrate; outer lip distinctly angu- lated, angle about 100° ; inner lip thin, smooth; umbilical open- ing large but not extending to the apex of the shell. Dimensions :—Altitude, apex broken, 7.5 mm.; latitude of the last whorl, 4 mm. Occurrence:—The type specimen was obtained from the lower Miocene of eastern San Luis Obispo County, California, locality 125. The living species of this genus are found in tropical and temperate seas. The placing of this species in the genus Niso is somewhat doubtful. The umbilical opening does not extend to the apex of the shell; it is, however, much more pronounced than in any of the Eulimidz or Pyramidellidz and has there- fore been classed as a Niso. (iype No: t3s;iCal Acad Sci) on top ot avhilll mithe southwest corner of the S. E. % of Sec. 29, T. 28 S., R. 15 E., San Luis Obispo County, California. Named in honor of Dr. Thomas Antisell, one of the early geologists of California. 66 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47H SER. Genus PYRAMIDELLA Lamarck Pyramidella cooperi, new species Plate 7, figures 18a and 18b Shell small, turriculated, solid, with nine or ten whorls, apex acute; spire strongly elevated; whorls flatly convex, narrowly tabulated, sculptured with one prominent narrow groove at the front margin; body-whorl rather well rounded below, with short base; aperture subelliptical; outer lip semicircular, den- ticulated within; columella with one conspicuous posterior plication and two less prominent anterior plications. Members of this genus inhabit tropical seas. Dimensions :—Altitude of the type, 11 mm.; maximum lati- tude, 4 mm. Occurrence :—From the lower Miocene of Kern River, Cali- fornia, locality 65. Type :—No. 136, and cotype No. 137, Cal. Acad. Sci., on the west bank of a small canyon 1% miles northeast of Barker’s ranch house, Kern County, California. Named in honor of Dr. J. G. Cooper. Genus EFULIMELLA Fischer Eulimella ochsneri, new species Plate 7, figures 23a and 23b. Shell small, elongated, slender, with eight or more whorls; spire high, with acute apex; whorls slightly convex, nearly flat, with narrow tabulation at the suture, ornamented with two or three very faint spiral lines near the base; the faint spiral lines at the base of the whorls are not visible on some specimens; suture distinct, channeled; aperture subquadrate; lips simple and smooth; body-whorl with a small umbilical chink. Dimensions :—Altitude of the type, apex broken, 8 mm.; diameter of the last whorl, 3 mm. Occurrence :—Not rare in the lower Miocene of Kern River, Kern County, California, locality 64. Type :—No. 138, and cotype No. 139, Cal. Acad. Sci., in bot- tom of a small canyon about 1% miles due north of Barker’s ranch house, Kern County, California. Named in honor of Mr. W. H. Ochsner. Vor. IV] ANDERSON AND MARTIN—NEOCENE RECORD 67 Eulimella dilleri, new species Plate 7, figure 24. Shell small, elongated, turriculated, solid, with eight to ten whorls; apex acute; whorls smooth, flatly convex; body-whorl sharply rounded below into a convex base; suture impressed, distinct ; aperture subrectangular ; inner lip reflexed ; columella straight, without plications. Dimensions :—Altitude of the figured specimen, apex broken, 9.5 mm.; maximum width of the shell, 3.5 mm. Occurrence :—From the Miocene of the Oregon coast, four miles north of Yaquina Bay, locality 37. This species differs from Eulimella ochsneri in having more convex whorls, an impressed suture instead of the appressed suture of the latter, and in being less convex at the periphery of the body-whorl. Type :—No. 140, Cal. Acad. Sci., Lincoln County, Oregon, in the sea cliff % mile north of lighthouse at Cape Foulweather. Named in honor of Mr. J. S. Diller, Geologist, U. S. Geo-. logical Survey. Eulimella californica, new species Plate 7, figures 19a, 19b, and 19c. Shell small, turriculated, elongated, smooth, solid, with seven or eight whorls; apex acute; whorls with a slight angulation near the anterior margin, flatly convex above, smooth; body- whorl convex at the base, nearly flat above; base not flattened ; suture impressed; aperture elliptical; outer lip arcuate; inner lip concave, slightly incrusted. Dimensions :—Altitude of the type specimen, 4.5 mm. ; maxi- mum latitude, 2 mm. Occurrence :—Lower Miocene of Kern River, California, locality 64. This species can be distinguished from Eulimella ochsneri and FE. dilleri by its much smaller size, by the slight angulation on the anterior margin of the whorls, the lack of flattened base, and a more elliptically shaped aperture. Type :—No. 141, and cotype No. 142, Cal. Acad. Sct., in the bottom of a small canyon about 1% miles due north of Barker’s ranch house, Kern County, California. 68 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47TH SER. Eulimella gabbiana, new species Plate 7, figure 20. Shell very small, slender and smooth, polished, with numer- ous whorls; apex acute (broken in the type specimen), whorls nearly flat, unsculptured; suture appressed, indistinct ; base un- flattened ; aperture ovally elongated; outer lip sharply rounded anteriorly ; inner lip concave, incrusted. Dimensions :—Altitude of the figured specimen, upper whorls lost, 4 mm. ; maximum width, 1.3 mm. Occurrence :—Lower Miocene of Kern River, California, locality 64. This species 1s distinguished by its small size, slender and smooth form, and its long narrow aperture. Type :—No. 143, Cal. Acad. Sci., in the bottom of a small canyon about 1% miles due north of Barker’s ranch house, Kern County, California. Named in honor of Wm. Gabb. Genus EPITONIUM Bolten Epitonium posoénsis, new species Plate 7, figure 10. Shell conical, solid, with seven or eight whorls; spire ele- vated; whorls tabulated, nearly flat above, sculptured with twelve strongly raised varices, which are reflexed and broad- ened on top, and four or five spiral lines which are plainly visible between the varices; varices with prominent shoulders, giving the whorls a tabulated appearance ; body-whorl squarely angulated at the base with a keel on the angle; base flat and smooth; aperture circular; outer lip thickened by the varix; inner lip incrusted, smooth. Dimensions :—A\ltitude of the figured specimen, apex broken, 14 mm. ; diameter of the last whorl, 8 mm. Type :—No. 144, Cal. Acad. Sci., the lower Miocene of Kern River, California, locality 65. Epitonium williamsoni, new species Plate 7, figures 9a and 9b. Shell long and narrow, with about ten whorls; spire very high; apex sharp; whorls convex, crossed by eighteen prom- Voz. IV] ANDERSON AND MARTIN—NEOCENE RECORD 69 inent, rounded axial ribs extending from suture to suture; in- terspaces about equal in width to the ribs; the spiral sculpture consisting of small threads, about ten or twelve to each whorl, less prominent than the axial ribs; suture distinct, deeply chan- neled; two broad continuous varices diagonally crossing each whorl; body-whorl angulated at the base, the angulation carry- ing a carina; the base sculptured with spiral threads; aperture circular ; outer lip thickened ; inner lip incrusted, smooth. Dimensions :—Altitude of the type specimen, apex defective, 18 mm. ; maximum diameter of the body-whorl, 6.5 mm. Occurrence :—From the lower Miocene of Kern River and eastern San Luis Obispo County, California. This species is named in remembrance of Lieutenant R. S. Williamson who conducted the first exploring expedition to the rich district of Kern River and Poso Creek. Type :—No. 145, and cotype No. 146, Cal. Acad. Sci., Kern County, California, on west bank of a small canyon 1% miles northeast of Barker’s ranch house. Genus LACUNA Turton Lacuna carpenteri, new species Plate 7, figure 21. Shell small, thin, conical, with six flat tapering whorls; spire elevated; apex subacute; whorls smooth, flat or very slightly convex ; suture distinct appressed ; body-whorl large, angulated at the base; aperture ovate; outer lip thin; inner lip smooth, separated from the body-whorl by a small umbilical chink. Dimensions :—Altitude of the figured specimen, 9 mm.; diameter of the last whorl, 5 mm. Occurrence :—Lower Miocene of Kern River, California, locality 65. Type :—No. 147, Cal. Acad. Sci., Kern County, California, on west bank of small canyon 1% miles northeast of Barker’s ranch house. Named in honor of Dr. Philip Carpenter. 70 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Ser. Genus FOSSARUS Phil. Fossarus dalli, new species Plate 7, figures 13a and 13b. Shell small, subglobose, solid, with three or four whorls which increase rather rapidly in size; spire short; whorls of the spire small, convex, sculptured with spiral threads separated by narrower interspaces, about six on the penultimate whorl; suture appressed ; body-whorl more than three-fourths the total length of the shell, convex, globose, sculpture with fifteen spiral threads which are separated by narrower interspaces; aperture elliptical; outer lip arcuate; columellar margin excavated, smooth ; a small umbilical chink visible on some specimens. Dimensions :—Altitude of the type, apex and base broken, 5 *»mm. ; latitude of the body-whorl, 3 mm. Occurrence :—Lower Miocene of Kern River, locality 64. The living members of this genus are most commonly found in tropical and temperate seas. Type :—No. 148, and cotype No. 149, Cal. Acad. Sci., Kern County, California, in bottom of a small canyon about 1% miles due north of Barker’s ranch house. Named in honor of Dr. W. H. Dall. Genus TURRITELLA Gray Turritella carrisaénsis, new species Plate 4, figure 4. Shell solid, elongated, turrited, with about ten whorls; spire very high; whorls tabulated at the posterior third; tabulation flat and forming an angle of forty degrees with the axis of the shell; surface in front of the angle flat or slightly concave ; orna- mentation consisting of four spiral ridges, one prominent form- ing the angle, two about midway between the anterior margin and the angle, and the fourth, a sutural cord, on the anterior margin; the latter forming a slight angulation on the base of the last whorl; suture deeply impressed ; aperture subquadrate. Dimensions :—Altitude of the figured specimen, apex de- fective, 76 mm. ; latitude of the last whorl, 29 mm. Vor. IV] ANDERSON AND MARTIN—NEOCENE RECORD 71 Occurrence:—Not common in the middle portion of the Santa Margarita (San Pablo) formation in the eastern part of San Luis Obispo County, California, locality 58. This species can be distinguished by its peculiar tabulation and spiral sculpture. Type:—No. 150, Cal. Acad. Sci., San Luis Obispo County, California; in the south bank of a a creek in the N. E. % On Seer 22 i ONS REL E. Genus CERITHIUM Brug. Cerithium arnoldi, new species Plate 7, figure 12. Shell conical, elongate, small, with nine or ten closely ap- pressed whorls; spire high; apex acute; whorls nearly flat, crossed by numerous irregular wavy, axial ribs which are ren- dered slightly nodose by the spiral cords; the spiral sculpture on the penultimate whorl consisting of three or four cords separated by wider interspaces which carry small secondary spiral threads ; body-whorl carrying seven or eight of the larger spiral cords between each two of which there are three inter- calary lines, the middle one slightly larger than the two on either side; base flattened producing a distinct angulation on the anterior portion of the body-whorl; aperture subquadrate ; lips simple; canal very short. Dimensions :—Altitude of the type, 19 mm.; diameter of the - last whorl, 7.5 mm. Occurrence :—A single specimen from the lower Miocene of Kern River, locality 64. Type :—No. 151, Cal. Acad. Sci., Kern County, California, in the bottom of a sarell canyon abort 1% miles due north of Barker’s ranch house. Named for Ralph Arnold in recognition of his valuable con- tributions to Tertiary paleontology. Genus ARGOBUCCINUM Morch Argobuccinum dilleri, new species Plate 4, figure 7. Shell large, solid, with nine or ten strongly sculptured whorls; spire high; whorls convex, tabulated, sculptured with ie CALIFORNIA ACADEMY OF SCIENCES [ Proc. 4TH SER. eighteen low, rounded axial ribs and numerous spiral cords which alternate in size; the spiral sculpture on the penultimate whorl consisting of four pair of double strap like cords, between each pair of which are three less prominent cords, the middle one being slightly larger than those on either side; the inter- spaces are narrower than the cords; the double cords produce nodulation on the axial ribs; two rugose discontinuous varices crossing each whorl from suture to suture ; entire surface faintly spirally striate; canal and aperture partly defective. Dimensions :—Altitude of the figured specimens, 65 mm. ; maximum diameter of the body-whorl, 44 mm. Occurrence :—From the Miocene of the Oregon coast, four and one half miles north of Yaquina Bay, locality 35. This species can be distinguished from Argobuccinum ore- gonense Redfield by a difference in the spiral sculpture and more prominent varices. Type :—No. 152, Cal. Acad. Sci., Lincoln County, Oregon, along the sea cliff a little south of the mouth of Wade Creek, about six miles north of Yaquina Bay. Named in honor of Prof. J. S. Diller, Geologist, U. S. Geo- logical Survey. Genus AMPHISSA Amphissa posunculensis, new species Plate 7, figures 1la and 11b. Shell small, thin, bucciniform, with about seven whorls; spire elevated; apex subacute; whorls well rounded and distinctly cancellated with small rounded axial ribs, separated by much wider interspaces and numerous spiral cords; the axial ribs are slightly nodose where crossed by the spiral cords; there are twenty-four axial ribs and about nine spiral cords of equal prominence on the penultimate whorl; the interspaces between the spiral lines usually carrying small. intercalary threads; suture very distinct, channeled; body-whorl large with a broadly angulated base; aperture broadly elliptical; outer lip lirate within ; inner lip incrusted ; columella short, twisted ; canal very short and broad, slightly curved. Dimensions :—Altitude of the type, apex defective, 18 mm. ; diameter of the last whorl, 9 mm. Vor. IV] ANDERSON AND MARTIN—NEOCENE RECORD 73 Occurrence :—From the lower Miocene of Kern River, Cali- fornia, locality 65. Type :—No. 153, and cotype No. 154, Cal. Acad. Sci., Kern County, California, on the west bank of a small canyon, 1% miles northeast of Barker’s ranch house. Genus AGASOMA Gabb Agasoma columbianum, new species Plate 5, figures 6a and 6b. Shell large for the genus, conical above and below, revolute, tuberculated ; spire high, having five or six conical whorls, slop- ing evenly to an acute apex; body-whorl angulated, carrying three rows of laterally elongated tubercules; the upper row most prominent and separated from the next row below by a concave surface; aperture ovate, broad in the middle, narrow before and extended into a moderately long recurved canal; outer lip thin and entire; inner lip incrusted; surface of the shell ornamented chiefly with revolving threads, three of which are prominent, forming the angles and elevated into tubercules ; the spiral threads alternating in size and of three or four ranks, crossed at unequal intervals by sinuous lines of growth; suture broadened by thickened and wrinkled collar; canal wide and curved; the aperture is greater in length than the height of the spire. Dimensions :—Altitude of the type specimen, 56 mm. ; maxi- mum width of the shell, 40 mm.; length of the aperture, 35 to 40 mm. Occurrence :—Pittsburg Bluff, Nehalem River, and near Clatskanie, Oregon. This species is not uncommon in the Oligocene(?) of the Pittsburg horizon. It is not known in the rocks of the Astoria Group or in the older rocks below. It is usually associated with Macrocallista pittsburgensis Dall, Molopophorus gabli Dall, and Nucula shumardi Dall. Type:—No. 155, and cotype No. 156, Cal. Acad. Sci., Pitts- burg Bluff, Nehalem River, Oregon. Agasoma acuminatum, new species Plate 5, figures 4a and 4b Shell rather large, fusiform; spire elevated though shorter than the mouth, with five or six whorls; whorls angulated a 74 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. little below the middle, tuberculated on the angles, flattened and sloping regularly above, flattened below; suture distinct and bordered by a wrinkled collar which is ornamented with two or three spiral threads; aperture ovate, elongated into a long recurved canal; canal moderately wide; outer lip thin and simple, not lirate within; inner lip slightly incrusted; surface of the shell ornamented with numerous revolving threads of three alternating sizes, a few of which are coarser than the others, one or two bearing tubercules on the body-whorl. Dimensions :—Altitude of the type specimen, 60 mm. ; maxi- mum latitude of the shell, 30 mm. Found associated with Diplodonta parilis Conrad, Nucula conradi Dall, and Tellina oregonensis Conrad. The ornamentation of this species is quite variable as regards the prominence of the tubercules. On some specimens they are pronounced while on others they are almost obsolete. Type :—No. 157, and cotype No. 158, Cal. Acad. Sci., from the Oligocene(?) or possibly lower Miocene beds about ten miles northwest of Scappoose, Oregon, in Sec. 36, T. 4 N., IRD IMG Agasoma oregonense, new species Plate 4, figures 3a and 3b Shell of moderate size, fusiform; spire elevated, with seven or eight whorls; whorls angulated near the middle, flat or slightly convex above, cylindrical below, ornamented with numerous spiral threads of alternating magnitude, and irregu- larly raised axial lines of growth which are most pronounced on the upper whorls where they form nodes on the angulations ; suture impressed; body-whorl large, ventricose, slightly con- stricted in front of the suture, with a rounded shoulder at the posterior third, concave above, convex below, sculptured similar to the whorls of the spire, but lacking the nodes on the shoul- der; aperture ovate, outer lip simple, inner lip smooth; canal long and recurved. : Dimensions :—Altitude of the type specimen, 55 mm. ; width of the body whorl, 27 mm. Type :—No. 159, and cotype No. 160, Cal. Acad. Sci., from the Oligocene(?) or possibly lower Miocene, ten miles north- west of Scappoose, Oregon, locality 168. Vor. IV] ANDERSON AND MARTIN—NEOCENE RECORD 75 Agasoma yaquinanum, new species Plate 4, figures 5a and 5b Shell pyriform, with five or six tabulated whorls; spire rather low; whorls angulated near the middle, flat above and below giving the shell a beautifully tabulated appearance, sculptured with eleven spiral threads, six above and five below the angle, and a large number of indistinct axial ribs which produce sharp nodulations on the larger spiral threads and especially on the angulations; body-whorl inflated, with a broad tabulation, sculptured with twelve or fourteen major spiral cords between which are three intercalary threads, the middle one of which is slightly larger than those on either side; the interspaces be- tween these secondary spirals again occupied by very fine in- tercalary lines ; axial ribbing almost obsolete on the body-whorl except on the angulation where they form nodes; suture ap- pressed ; aperture ovate; lips smooth and simple; canal moder- ately long and slightly recurved ; columella twisted. Dimensions :—Altitude of the type specimen, 25 mm. ; max1- mum latitude of the shell, 14 mm. Type :—No. 161, and cotype No. 162, Cal. Acad. Sci., Mio- cene of the Oregon coast, a little north of the entrance to Yaquina Bay, locality 39. Genus NASSA Martini Nassa ocoyana, new species Plate 7, figure 17. Shell small, with about five angulated whorls; spire elevated ; whorls of the spire nearly flat, tabulated, sculptured with eight or nine broad, rounded axial ribs which are most prominent on the upper portion of the whorl where they produce nodes on the angulation, and seven or eight spiral cords which alternate in size, there being four or five slightly more prominent than those intervening ; the axial ribs obsolete on the body-whorl and on the lower portion of the penultimate whorl; suture wavy, dis- tinct, bounded below by a sutural band; body-whorl nearly flat at the center and marked by a strong spiral groove near the base; below the groove are three or four strong spiral threads and about eight indistinct spiral ridges between the groove and 76 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. the angulation; aperture elliptical, outer lip thickened by a varix; inner lip simple; canal short and recurved. Dimensions :—Altitude of the figured specimen, canal de- fective, 11 mm.; diameter of the last whorl, 5 mm. Occurrence :—Found in the lower Miocene of Kern River and eastern San Luis Obispo County, California. Type :—No. 163, Cal. Acad. Sci., Kern County, California, in the bottom of a small creek 1% miles due north of Barker’s ranch house. Nassa blakei, new species Plate 7, figures 15a and 15b. Shell small, ovate, solid, with five or six whorls; spire ele- vated ; whorls of the spire slightly convex, sculptured with four or five spiral lines, and twelve to fifteen raised axial ribs, most prominent at the middle of the whorls; the intersection of the axial ribs and the spiral lines producing small nodes; suture distinct, impressed ; body-whorl large, about one half the total length of the shell, with prominent spiral ridges on the anterior and posterior margins, concave centrally, sculptured with numerous spiral lines and axial lines of growth; aperture sub- quadrate; outer lip thickened, denticulate within; inner lip incrusted, roughened; canal very short and broad. Dimensions :—Altitude, 9 mm. ; maximum width of the shell, 5 mm.; length of the aperture, including the canal, 4 mm.; width of the aperture, 2 mm. Occurrence :—One specimen, the type, from the lower Mio- cene of Kern River, California, locality 65. Type:—No. 164, Cal. Acad. Sci., Kern County, California, on the west bank of a small canyon 1% miles northeast of Barker’s ranch house. Named in honor of Mr. W. P. Blake. Nassa antiselli, new species Plate 7, figure 16. Shell small, ovate; spire conical, elevated, with five nodose whorls; whorls slightly convex, tabulated, sculptured with three equally spaced spiral cords and about thirteen axial ribs which are equal in prominence to the spiral cords; the intersection of Vor. IV] ANDERSON AND MARTIN—NEOCENE RECORD Wil the spiral and axial ribs producing conspicuous nodes; suture distinct, impressed; body-whorl ventricose, sculptured with eight spiral cords and fifteen axial ribs, nodose as the whorls of the spire; aperture elliptical; outer lip thickened by a con- spicuous varix; inner lip smooth; columella short, with a small anterior sulcus; canal short and broad. Dimensions :—Altitude, 8.5 mm. ; diameter of the last whorl, 5 mm. Occurrence :—Lower Miocene of San Luis Obispo County, California, locality 126. This species can be distinguished by its small size, peculiar nodose sculpture, and prominent varix on the outer lip. It is more elongate and has much coarser sculpture than Nassa arnoldi Anderson. | Type:—No. 165, Cal. Acad. Sci., San Luis Obispo County, California, in the bed of a small creek near the center of Sec. SF I ZS) Seg I IS) 1D, Named in honor of Dr. Thomas Antisell. Nassa lincolnensis, new species Plate 7, figures 14a and 14b. Shell small, globose, with four or five rather rapidly enlarg- ing whorls; spire of medium height; apex blunt; whorls tabu- lated, convex, sculptured with three spiral bands between which are equal interspaces, and twelve axial ribs separated by wider interspaces; the intersection of the axial and spiral ribs pro- ducing nodes which are most prominent on the angle of the whorls; body-whorl convex, with sixteen axial ribs and eight flat topped spiral bands, the whole surface finely spirally striate; aperture ovate; outer lip simple; inner lip incrusted ; columella very short with a distinct anterior sulcus. Dimensions :—Altitude, 10 mm.; diameter of the last whorl, 6 mm. Type :—No. 167, and cotype No. 168, Cal. Acad. Sci., Mio- cene of the Oregon coast, a short distance north of Yaquina Bay, locality 39. ; 78 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Ser. Genus MOLOPOPHORUS Gabb Molopophorus dalli, new species Plate 6, figures 7a and 7b. Shell moderate in size, stout, conical above, not strongly sculptured, with five whorls; spire rather high for the genus, tapering evenly except for the sutural collar; younger whorls ornamented with beaded collars, older whorls with beads obso- lete ; body-whorl with distinct constriction below collar; mouth ovate, narrowed above; outer lip thin and smooth; inner lip widely calloused ; canal very short, wide, recurved; pillar partly encircled by strong plication which forms the outer border of the canal; surface marked by irregular axial ridges crossed by spiral cords. Dimensions :—Length, 39 mm.; width, 25 mm. Type :—No. 168, and cotype No. 169, Cal. Acad. Sci., from the Oligocene(?) near Clatskanie, Oregon, locality 165, in a prominent bluff along the county road about 2% miles south- west of Clatskanie. Molopophorus gabbi Dall Plate 6, figures 5a and 5b. Molopophorus gabbi Dall, U. S. G. S. Professional Paper Nola9; 1909: This species has been figured to illustrate the characters which distinguish it from Molopophorus dalli. As pointed out by Dr. Dall the form and sculpture of this species vary con- siderably, and it may be shown later that the form, here de- scribed as new, is only a wide variation of Molopophorus gabbi Dall. At present there seems to be sufficient difference in form and sculpture to separate the two as distinct species. Genus CHRYSODOMUS Swains. Chrysodomus kernensis, new species Plate 4, figures 6a and 6b. Shell of moderate size, solid, with seven whorls, nucleus lost on the type; spire high; apex subacute; whorls with well rounded shoulder near the middle, slightly rounded below, flat or concave above, rather strongly constricted in front of the Vot. IV] ANDERSON AND MARTIN—NEOCENE RECORD 79 suture forming a distinct sutural collar, sculptured with numer- ous spiral cords having narrower interspaces; the width of the cords and the interspaces varying considerably, on the anterior portion and just above the shoulder of the body-whorl the cords alternating large and small; in the middle portion nearly equal, with one broad spiral band at the shoulder; the axial sculpture consisting of inconspicuous lines of growth; suture strongly appressed ; body-whorl large, about two thirds the total length of the shell; aperture elliptical, outer lip ribbed within, inner lip smooth, calloused; canal short, wide, recurved; columella twisted, with small anterior sulcus. Dimensions :—Altitude of the type, apex defective, 62 mm. ; maximum latitude of the shell, 28 mm.; length of the aperture, including the canal, 31 mm. ; width of the aperture, 12 mm. Occurrence :—Lower Miocene of Kern River and eastern San Luis Obispo County, California. The type was obtained from locality 65. Type :—No. 172, and cotype No. 173, Cal. Acad. Sci., Kern County, California; on west bank of a small canyon 1% miles northeast of Barker’s ranch house. Genus SIPHONALIA Adams Siphonalia posoénsis, new species Plate 4, figure 2. Shell large, fusiform, solid, with seven or more whorls; spire high, conical; whorls angulated near the anterior margin, the angulation ornamented with about nine prominent nodes; sur- face above the angulation nearly flat or concave; sculpture consisting of spiral grooves and axial lines of growth; the spiral grooves somewhat irregularly spaced and the spaces be- tween them often raised forming spiral cords; body-whorl angulated near the middle, concave above, convex below ; aper- ture ovate; outer lip arcuate ; inner lip smooth, incrusted; canal moderately long, curved to the left; columella incrusted, with a long anterior sulcus. Dimensions :—Altitude, 90 mm.; maximum latitude of the last whorl, 45 mm. ; length of the aperture, including the canal, 43 mm.; width of the aperture, 17 mm. December 30, 1914. 80 CALIFORNIA ACADEMY OF SCIENCES [ Proc. 4TH SER. Type :—No. 174, Cal. Acad. Sci., lower Miocene of San Luis Obispo County, California, locality 126, in the bed of a small creek near the center of Sec. 34, T. 28 S., R. 15 E. Genus MELONGENA Schum. Melongena californica, new species Plate 4, figure 1 Shell of moderate size solid, pyriform, with a low spire; whorls of the spire inconspicuous, unsculptured, three or four in number; body-whorl inflated, broadest near the posterior margin, the middle and anterior portion sloping downward to the canal; ornamentation consisting of two rows of nodes; one on the shoulder, and the other a little anterior to the middle, the nodes are pronounced and number about five to a row; aperture oval, inner lip smooth incrusted; columella broad and heavy, with prominent anterior sulcus; canal defective, probably broad and nearly straight. Dimensions :—Altitude, canal defective, 38 mm.; width of the last whorl, 29 mm.; length of the aperture, including a portion of the canal, about 30 mm. Type:—No. 175, Cal. Acad. Sci., lower Miocene of eastern San Luis Obispo County, California, locality 60, on the top of a prominent ridge one mile east of the San Juan River in the ING Cotes iE WHOUN: IB ya) See, Sa SO) Spy IR 7 1B This genus has not previously been reported to occur in the Miocene of California. Genus TROPHON Montt. Trophon oregonensis, new species Plate 5, figure 5 Shell large, thick, fusiform, with six or seven angulated whorls; spire elevated; whorls of the spire angulated near the middle, surface flat and smooth above, smooth and sloping in- ward below; whorls ornamented with nine or ten prominent projecting spines which are excavated in front and convex behind and extending downward to the suture in front forming short varices; suture impressed, wavy; body-whorl ventricose, Vor. IV] ANDERSON AND MARTIN—NEOCENE RECORD 81 sharply concave at the anterior margin; aperture ovate; canal moderately long, slightly twisted. Dimensions :—Altitude of the figured specimen, 58 mm.; maximum diameter of the last whorl, 40 mm. Type :—No. 176, Cal. Acad. Sci., Miocene of the Oregon coast, four miles north of Yaquina Bay, locality 38. Trophon kernensis has a lower spire, angulation of the whorls more anterior, and with nodes instead of excavated spines. Tvophon carisaénsis Anderson, has a smaller number of spines, angulation nearer the anterior margin, and a shorter and much more thickened columella. Tvrophon gabbianus Anderson, is a closely allied species with less prominent spines and ornamented with many revolving cords and grooves on the body-whorl below the shoulder. Trophon gabbianus Anderson Plate 5, figure 1. Trophon gabbiana Anderson, Proc. Calif. Acad. Sci., 3rd Series, Geology, vol. 3, No. 2, page 203, Pl. 16, fig. 79-80. This species is refigured in order to point out more clearly the distinguishing characters of Trophon oregonensis, new species. Genus THAIS Bolten Thais trophonoides, new species Plate 6, figures la and 1b. Shell of moderate size, globose, solid, with five rather rapidly enlarging whorls; spire moderately elevated; apex blunt; whorls of the spire angulated a little below the middle, flat above and below, crossed by nine axial ribs and seven or eight spiral cords; axial ribs most prominent on the angle of the whorl; interspaces between the spiral cords usually occupied by a small intercalary thread ; suture appressed ; body-whorl large, ventricose, angulated above the middle, marked by nine axial ribs which are obsolete on the anterior portion, and numerous spiral cords between which are intercalary threads; aperture pytiform; outer lip angulated above and below the middle; columella twisted, with narrow groove and a deep anterior sulcus; canal recurved. 82 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Ser. Dimensions :—Altitude of the type specimen, 34 mm. ; max1- mum width of the shell, 24 mm. Type :—No. 178, and cotype No. 179, Cal. Acad. Sci., from the lower Miocene of Kern River, locality 65, on the west bank of a small canyon 1% miles northeast of Barker’s ranch house. Thais blakei, new species Plate 6, figures 4a and 4b. Shell solid, fusiform, with six whorls; spire moderately high; whorls of the spire with a well rounded angle near the anterior margin, flat or concave above, restricted near the suture, sculptured with spiral cords and coarse, raised, axial lines of growth; seven or eight spiral cords on the penultimate whorl, separated by wider interspaces which occasionally carry a fine intercalary thread; suture appressed ; body-whorl with a well rounded shoulder a little in front of the suture, concave above, inflated below, sculptured in the same manner as the whorls of the spire; aperture ovate, outer lip thickened, denticu- late within, inner lip smooth, incrusted; canal short, recurved ; columella twisted, with anterior sulcus. Dimensions :—Altitude of the type, apex defective, 34 mm. ; maximum latitude of the shell, 17 mm.; length of the aperture, including the canal, 21 mm.; width of the aperture, 6 mm. Type :—No. 180, and cotype No. 181, Cal. Acad. Sci., lower Miocene of Kern River, California, locality 65, on the west bank of a small canyon 14% miles northeast of Barker’s ranch house. Thais blakei resembles Thais edmondi Arnold in general form. It may be distinguished from the latter by its uniformly larger size, longer canal, and the lack of nodes on the shoulder or angle of the whorls. Thais panzana, new species Plate 6, figure 6. Shell solid, of moderate size; whorls five or six; spire ele- vated, conical; suture distinct, channeled; whorls of the spire conical, slightly concave above the middle, with a row of nodes, around the anterior margin giving them an angular appear- > Vor. IV] ANDERSON AND MARTIN—NEOCENE RECORD 83 ance, sculptured with distinct spiral cords separated by nar- rower interspaces, eleven or twelve on the penultimate whorl; body-whorl large, about two-thirds the total length of the shell, angulated near the middle, concave above, almost flat below and narrowing rapidly to the canal, with eight prominent nodes on the angulation, eight spiral cords above the shoulder and about eighteen below; aperture elliptical, outer lip angulated, inner lip smooth; columella stout, incrusted, with anterior sulcus; canal short, recurved. Dimensions :—Altitude of the figured specimen, apex de- fective, 30 mm. ; maximum latitude of the shell, 16 mm. ; length of the aperture, including the canal, 20 mm.; width of the aperture, 8 mm. Type :—No. 182, Cal. Acad. Sci., lower Miocene of eastern San Luis Obispo County, California, locality 126, in the bed of a small creek near the center of Sec. 34, T. 28 S., R. 15 E. Thais nehalemensis, new species Plate 6, figure 3. Shell solid, fusiform, with about six whorls; spire moder- ately elevated ; apex acute; whorls of the spire concave with a raised anterior margin or collar which is ornamented with twelve to fourteen prominent nodes, the nodes partly obscured by the overlapping of the succeeding whorl; concave area smooth or marked by very fine spiral lines; suture indistinct due to the overlapping of the whorls; body-whorl large, more than three-fourths the total length of the shell, angulated near the middle, concave above, ornamented with thirteen prominent nodes and numerous revolving threads of three or more ranks which alternate regularly; nodes most prominent at the angle, fading out above and on the anterior portion of the whorl; the spiral threads most prominent on the nodose area; aperture oval, outer lip simple, inner lip incrusted, smooth; posterior sinus broad and shallow; canal short and broad, recurved. Dimensions :—Length of the shell, 33 mm.; maximum diam- eter of the body-whorl, 19 mm.; length of the aperture and canal, 21 mm.; width of the aperture, 8 mm. Type :—No. 183, Cal. Acad. Sci., Oligocene or lower Mio- cene beds ten miles northwest of Scappoose, Columbia County, Oregon. 84 CALIFORNIA ACADEMY OF SCIENCES [ Proc. 4TH Ser. The presence of the posterior sinus in this species indicates that it might be more properly placed in the Plewrotomide, but the short and broad canal and general shape of the shell sug- gest the genus Thais to which it has been assigned temporarily. Genus FUSINUS Rafinesque Fusinus empireénsis, new species Plate 5, figure 7. Shell solid, fusiform, with eight or nine convex whorls; spire elevated; whorls moderately convex, sculptured with seven or eight coarse rounded spiral cords alternating in prominence, the cords on the anterior portion slightly more elevated than those on the posterior, frequently giving the whorls an angu- lated appearance; body-whorl with eighteen spiral cords, axial sculpture consisting of lines of growth; suture distinct, chan- neled; aperture rounded or circular; inner lip smooth, lightly incrusted; canal defective in the type, probably of moderate length. Dimensions :—Altitude, 50 mm. ; canal defective; latitude of the last whorl, 23 mm. | Type:—No. 185, Cal. Acad. Sci., from the Empire forma- tion, Miocene of Coos Bay, Oregon, locality 1, in the sandstone exposed on the east shore of Coos Bay, opposite Coos Bay Bar, 100 yards north of the S. W. cor., Sec. 30, T. 25 S., R. 13 W. Genus CANCELLARIA Cancellaria lickana, new species Plate 8, figures 6a, 6b, 6c, and 6d. Shell globose, solid, with five or six rapidly enlarging whorls; spire low; whorls of the spire small, inconspicuous, convex, sculptured with four or five spiral threads with nearly equal interspaces which carry a fine intercalary thread; suture appressed ; body-whorl large, globose, sculptured with about twenty spiral cords and an equal number of intercalary threads; axial sculpture consisting of lines of growth; aperture ellip- tical; outer lip crenulated; inner lip with heavy callus cover- ing a portion of the body-whorl; canal very short, broad, straight; columella with two plications and an anterior sulcus. Vou. IV] ANDERSON AND MARTIN—NEOCENE RECORD 85 Dimensions :—Altitude of the type, 21.5 mm.; latitude of the last whorl, 16 mm.; length of the aperture, 17 mm.; width of the aperture, 6.5 mm. Type :—No. 186, and cotypes Nos. 187, 188, 189, Cal. Acad. Sci., lower Miocene of Kern River, California, locality 65, on the west bank of a small canyon 1% miles northeast of Bar- ker’s ranch house. This species resembles superficially the figures of Purpura lima Martyn, published in an earlier paper’ and referred to by Ralph Arnold in his description of Cancellaria andersoni. The species here described differs from Cancellaria andersoni Arnold, in not having axial ribbing on any of the whorls, while it shows strong spiral sculpture on all of them. The surface of the body-whorl is not inornate, but is crossed by strong spiral threads and distinct lines of growth which give the sur- face a doubtfully cancellated appearance. Cancellaria nevadensis, new species Plate 8, figures 5a, 5b, 5c, and 5d. Shell small, solid, ovate, with five or six tabulated whorls; spire moderately high; apex subacute; whorls angulated above the middle, flat or slightly concave above, convex below, sculp- tured with numerous spiral threads and irregular axial ribs; the interspaces between the spiral threads vary in width and frequently carry intercalary threads; axial ribs most prominent on the whorls of the spire where they form small nodes on the angulations, almost obsolete on the body-whorl of most speci- mens ; suture distinct, impressed ; aperture ovate; outer lip thin; canal short and wide; columella with two plications and a small anterior sulcus. Dimensions :—Altitude of the type, 18 mm.; maximum lati- tude of the shell, 10 mm.; length of the aperture, 11 mm.; width of the aperture, 4 mm. Type :—No. 190, and cotypes Nos. 191, 192, 193, Cal. Acad. Sci., lower Miocene of Kern River, California, locality 68, on the north bank of Kern River about 34 mile west of the power plant and about 3 miles east of the Rio Bravo ranch house. 1 Proc. Calif. Acad. Sci., 3rd Ser., vol. 2, p. 202,. pl. 15. 86 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47H Ser. Cancellaria condoni Anderson Plate 8, figures 8a, 8b, 8c, and 8d. Cancellaria condoni Anderson, Proc. Calif. Acad. Sci., 3rd Series, Geol Voli 25p. 200) pl lay tien 49-50 O05: This species is refigured here in order to illustrate its varia- tions and to point out more clearly the characters by which it may be distinguished from the new species of Cancellaria that are here described. Cancellaria dalliana Anderson Plate 8, figures la, lb, 1c, and 1d. Cancellaria dalliana Anderson, Proc. Calif. Acad. Sci., 3rd Ser, Geol, Wolk, 2, jo. UGE), ol Sy, er, SSA), NO, Refigured with Cancellaria condoni Anderson, see above. Cancellaria posunculensis, new species Plate 8, figures 7a, 7b, and 7c. Shell small, ovate-elongate, with six whorls; spire high; whorls convex, sculptured with about eight spiral threads which are separated by narrower interspaces carrying intercalary lines; axial sculpture consisting of close-set lines of growth, much less pronounced than the spiral threads; the intersection of the axial and the revolving lines producing a delicately can- cellated surface; suture distinct, impressed, bordered anteriorly by a small tabulation; body-whorl large, about three-fourths the total length of the shell, gracefully convex, ornamented with eighteen major spiral threads between which are smaller intercalary lines; axial sculpture same as on the whorls of the spire; aperture elliptical; outer lip arcuate, denticulate within; canal short, curved; columella long and recurved, carrying three plications, two of them slightly larger than the third. Dimensions :—Altitude of the type, 17.5 mm.; maximum diameter of the body-whorl, 8 mm.; length of the aperture, in- cluding the canal, 10 mm. Type :—No. 202, and cotypes Nos. 203 and 204, Cal. Acad. Sci., lower Miocene of Kern River, California, locality 65, on the west bank of a small canyon, 1% miles northeast of Barker’s ranch house. Vor. IV] ANDERSON AND MARTIN—NEOCENE RECORD 8/7 Cancellaria rotunda, new species Plate 8, figures 4a and 4b. Shell globose, thin, with five well rounded whorls; spire rather short; apex blunt; whorls of the spire convex, orna- mented with thirteen prominent rounded axial ribs with wider interspaces, and five or six spiral threads with very small inter- calary lines; suture depressed; body-whorl comprising the greater portion of the shell, evenly globose, sculptured the same as the whorls of the spire, with thirteen axial ribs and sixteen spiral threads; the axial ribs much more pronounced than the spiral threads; the interspaces between the spiral threads carry- ing intercalary lines; aperture semicircular ; outer lip thickened ; inner lip incrusted; canal short; columella with two plications on the anterior portion. Dimensions :—Altitude of the type, 14 mm.; maximum lati- tude of the shell, 12 mm.; altitude of an entire specimen, about 21 mm. Type :—No. 205, and cotype No. 206, Cal. Acad. Sci., Mio- cene of the Oregon coast, a half mile north of Yaquina Bay, locality 39. Cancellaria sanjosei, new species Plate 6, figures 2a and 2b. Shell small, ovate, thick, with five or six rather rapidly en- larging whorls; spire elevated; whorls slightly convex or flat, with a narrow tabulation, sculptured with seven or eight flat spiral cords, the alternate cords being slightly more prominent than those adjacent; suture distinct; body-whorl large, about five-sixths of the total length of the shell, tabulated above, sculptured with fourteen major spiral cords with alternate small intercalary threads ; aperture elongate-oval, outer lip thick, col- umella with two plications and an anterior sulcus; canal short. Dimensions :—Altitude of the type specimen, 20 mm. ; diam- eter of the body-whorl, 11.5 mm. Type :—No. 207, and cotypes No. 208, Cal. Acad. Sci., lower Miocene of eastern San Luis Obispo County, California, locality 126, in the bed of a small creek near the center of Sec. Se eZ. SR Wok, 88 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47TH Ser. Genus ADMETE Admete clatskaniénsis, new species Plate 8, figures 3a and 3b. Shell small, ovate, thin, with six tabulated whorls, nucleus excluded ; spire high, with an acute apex; whorls angulated at the middle, flat above, convex below, sculpture consisting of twelve broad, rounded axial ribs which are most prominent on the angle where they are slightly nodose, becoming obscure near the suture and on the anterior portion of the body-whorl, crossed by ten spiral threads on the penultimate whorl, four above the angle and six below, the latter alternating in prom- inence; suture distinct, channeled; body-whorl convex, with fifteen spiral threads which alternate in size, the interspaces on the anterior portion containing a small intercalary thread; aperture oval; outer lip arcuate; canal short; columella with two small plications and a small anterior sulcus. Dimensions :—Altitude of the type specimen, 10 mm. ; maxi- mum diameter of the last whorl, 5 mm. Type :—No. 209, and cotype No. 210, Cal. Acad. Sci., Oli- gocene(?) (or Miocene) of Columbia County, Oregon, two and one-half miles southwest of Clatskanie. Genus TURRIS Bolten Turris lincolnensis, new species Plate 6, figure 8. Shell large, fusiform, with seven or eight whorls; spire high, with an acute apex; whorls of the spire obtusely angulated a little anterior to the middle, nearly flat above and below, slightly concave near the suture; ornamentation consisting of prom- inent nodes and fine spiral threads separated by wider inter- spaces carrying fine intercalary lines, fifteen nodes and about twenty-four major spiral threads on the penultimate whorl; suture distinct, appressed ; body-whorl ventricose, ornamented with a row of nodes a little above the middle producing a slight angular appearance, convex above and below, constricted at the suture; spiral sculpture similar to that of the whorls of the spire; aperture oval, with a broad and shallow posterior sinus ; canal moderately long. Vot. IV] ANDERSON AND MARTIN—NEOCENE RECORD 89 Dimensions :—Altitude of the figured specimen, apex and canal defective, 43 mm. ; width of the last whorl, 24 mm. Type :—No.. 211, Cal. Acad. Sci., Miocene of the Oregon coast, five miles north of Yaquina Bay, locality 36. This species is near Turris coli Dall, which has the nodes ex- tending to the suture above and is not distinctly angulated. The new form has nodes instead of ribs, and is angulated. Turris carlsoni, new species Plate 5, figures 2a and 2b. Shell large and solid, fusiform, with about eight whorls; spire high, with an acute apex; whorls of the spire with a sub- dued angular appearance below the middle, slightly concave above, convex below, ornamented with a row of nodes on the angulation, and numerous spiral striations somewhat alternat- ing in prominence; suture appressed, bordered by a sutural col- lar; body-whorl ventricose, convex near the middle of the whorl, with inconspicuous or obsolete nodes, spiral sculpture the same as on the upper whorls; on some specimens the lower portion of the body-whorl is marked by raised spiral cords and intercalary lines in place of the incised lines or striations ; aper- ture oval, with a simple outer lip; columella incrusted, smooth, with an anterior sulcus; canal moderately long, curved to the left. Dimensions :—Altitude of the type specimen, canal defective, 44 mm.; width of the last whorl, 21 mm.; length of the aper- ture, including the canal, 25 mm. _ Type:—No. 212, and cotype No. 213, Cal. Acad. Sci., Mio- cene of the Oregon coast, six miles north of Yaquina Bay, locality 36. Named for John I. Carlson of the California Academy of Sciences. Genus BATHYTOMA Harris & Burrows Bathytoma condonana, new species Plate 7, figure 8. Shell of moderate size, ovate, with elevated spire and acute apex ; whorls six or seven, ornamented with a row of nodes near the anterior margin, concave above, finely cancellated with 90 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. numerous spiral threads and fine axial ribs; the penultimate whorl carrying twelve nodes on the angulation; suture distinct, strongly appressed; body-whorl large, ventricose, angulated above the middle, concave above, convex below, marked in front of the angle with numerous raised spiral ridges with wider interspaces carrying small intercalary threads. Dimensions :—Altitude of the figured specimen, 16.5 mm. ; diameter of the body-whorl, 9.5 mm. Type :—No. 214, Cal. Acad. Sci., lower Miocene of the Oregon coast, four miles north of Yaquina Bay, locality 39. Named in honor of the late Professor Thos. Condon, Uni- versity of Oregon. Genus DRILLIA Gray Drillia ochsneri, new species Plate 6, figures 9a, 9b, and 9c. Shell large, fusiform, with high spire and acute apex ; whorls eight or nine, angulated a little below the middle, concave above, flat or convex below, crossed by ten or eleven low axial ridges most prominent on the shoulders where they form nodes, but disappearing above the shoulder on the whorls of the spire and on the anterior portion of the body-whorl; spiral sculpture consisting of revolving threads which occur only on the an- terior portion of each whorl; nodes obsolete on the body-whorl of some specimens; suture distinct; aperture narrowly ellip- tical, with a deep posterior sinus between the shoulder and the suture; columella smooth and twisted; canal moderately short and curved. Dimensions :—Altitude of the type specimen, 43 mm. ; diam- eter of the last whorl, 20 mm.; length of the aperture including the canal, 22 mm. Type :—No. 215, and cotypes Nos. 216, 217, Cal. Acad. Sci., lower Miocene of Kern River, California, locality 65, on the west bank of a small canyon 1% miles northeast of Barker’s ranch house. This species has been referred to in a few cases as Drillia johnsom Arnold. It differs from the latter in the following respects: angulation of the whorls more anterior, nodes and Vor. IV] ANDERSON AND MARTIN—NEOCENE RECORD Ol axial ribbing more pronounced and of a different character, and the shell broader in proportion to the altitude. Named in honor of Mr. W. H. Ochsner. Drillia wilsoni, new species Plate 6, figures 10a, 10b, and 10c. Shell large for the genus, elongated, solid, with eight or nine whorls; spire elevated; whorls sharply angulated at the middle, very concave above, flat or slightly convex above, crossed by ten rounded, oblique axial ridges rising to prominent nodes on the angles, becoming fainter or disappearing imme- diately above; the axial ridges crossed by spiral cords separated by grooved interspaces in front of the shoulder on each whorl, four or five on the penultimate whorl, and eighteen or twenty on the last whorl; aperture ovate; columella smooth, straight ; canal moderately long, nearly straight. Dimensions :—Altitude of the type, with defective apex, 47 mm.; diameter of the last whorl, 18 mm.; length of the aper- ture, including the canal, 23 mm. Type :—No. 218, and cotypes Nos. 219, 220, Cal. Acad. Sci., lower Miocene of eastern San Luis Obispo County, California, locality 126, in the bed of a small creek near the center of Sec. SA 2S SiR MS) He Drillia temblorensis, new species Plate 7, figures 5a and 5b. Shell small, fusiform, with seven or eight whorls; spire high with an acute apex; whorls angulated a little in front of the middle, flat above, convex below, sculptured with ten or eleven fine spiral cords which are crossed by numerous lines of growth; six spiral cords above the angle and four below, two of the latter slightly more prominent than those intervening ; suture distinct, channeled ; body-whorl with twenty-four spiral cords, those near the shoulder most prominent; aperture ellip- tical, with a simple outer lip; canal moderately short ; columella smooth and twisted. 92 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. Dimensions :—Altitude of the type specimen, 13.5 mm.; maximum diameter of the last whorl, 5.5 mm. Type :—No. 221, and cotype No. 222, Cal. Acad. Sci., lower Miocene of Kern River, California, locality 64, in the bottom of a small canyon about 1% miles due north of Barker’s ranch house. Drillia temblorensis resembles Drillia inermis Hinds, in hav- ing almost no axial ribs, and in having an ornamentation con- sisting chiefly of revolving lines. It may be distinguished from the latter by its fine axial ornamentation, few spiral cords, less distinct suture, and less angulated whorls. Drillia bulwaldana, new species Plate 7, figures 3a, 3b, and 3c. Shell small, slender, solid, with eight to ten whorls; spire high, with an acute apex; whorls angulated a little above the middle producing prominent shoulders, very concave above, convex below, each whorl crossed by thirteen strong, rounded axial ribs with slightly wider interspaces, and numerous fine spiral threads of unequal size, three or four on each whorl more prominent than those intervening; the latter very fine, and scarcely raised, making the surface appear to be spirally striate; suture distinct, wavy, bordered below by a sutural col- lar about one-half millimeter in width; body-whorl with ten or twelve major spiral threads, slightly concave on the posterior portion, strongly nodose on the shoulder; aperture oval; canal short; columella incrusted; posterior sinus deep and narrow, between the suture and the angle. Dimensions :—Altitude of the type specimen, 21 mm. ; diam- eter of the last whorl, 7 mm. Type :—No. 223, and cotypes Nos. 224 and 225, Cal. Acad. Sci., lower Miocene of Kern River, California, locality 68. Drillia buwaldana somewhat resembles Drillia montereyensis Stearns but is larger, with less conspicuous sutural collar, more distinct whorls, longer canal, and few and more prominent axial ribs. Named in honor of Mr. J. P. Buwalda. ee i ee ee Vor. IV] ANDERSON AND MARTIN—NEOCENE RECORD 93 Drillia antiselli, new species Plate 7, figures 2a and 2b. Shell small, solid, rather broadly fusiform; spire high with an acute apex; whorls six or seven, angulated a little in front of the middle, concave above, convex below, marked with four spiral lines, one on the angle and three below; suture distinct; body-whorl with ten or eleven spiral lines in front of the shoul- der; aperture elliptical, with simple outer lip; canal short and broad, slightly recurved; columella incrusted, smooth, with anterior sulcus. Dimensions :—Altitude of the type specimen, 17.5 mm.; diameter of the last whorl, 7.5 mm.; length of the aperture, in- cluding the canal, 9 mm. Type:—No. 226, and cotype No. 227, Cal. Acad. Sci., lower Miocene of Kern River, California, locality 65, on the west bank of a small canyon, 1% miles northeast of Barker’s ranch house. Named in honor of Dr. Thomas Antisell. Drillia ocoyana, new species Plate 7, figures la and 1b. Shell small, elongate, solid, with seven or eight whorls; spire elevated; whorls slightly convex or nearly flat, sculptured with numerous spiral grooves eight on the whorls of the spire and about twenty-five on the body-whorl; the interspaces between the spiral grooves on the body-whorl slightly raised and often divided by a small intercalary groove; numerous faint axial lines are visible on the upper whorls of some specimens ; suture strongly appressed ; body-whorl sharply rounded on the anterior margin, and angulated near the posterior margin on some specimens, concave above, broadly convex below; aperture elliptical, oblique, with an arcuate outer lip and a shallow pos- terior sinus; canal very short; columella concave, incrusted, with an umbilical chink. Dimensions :—Altitude of the type specimen, 22 mm., with the first few whorls broken; diameter of the last whorl, 10 mm. ; length of the aperture, including the canal, 10 mm. 94 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47H Ser. Type :—No. 228, and cotype No. 229) | CaliAcady Ser lower Miocene of Kern River, California, locality 64, in the bottom of a small canyon about 1% miles due north of Barker’s ranch house. Drillia columbiana, new species Plate 7, figures 4a and 4b. Shell fusiform, small, with six or seven whorls; spire high, with an acute apex; whorls angulated a little below the middle, concave above with very fine spiral striations, flat below with two or three spiral threads, crossed by axial lines of growth; suture distinct, channeled; body-whorl convex in front of the shoulder, sculptured with nine or ten spiral threads having slightly wider interspaces which occasionally contain very fine intercalary lines; the spiral threads replaced by seven or eight striations on the anterior portion of the body-whorl; aperture ovate, with simple outer lip; canal short; columella twisted ; posterior sinus broad and moderately deep. Dimensions :—Altitude of the type, with defective a9 2) mm.; diameter of the last whorl, 4.5 mm. Tyne ENO. Zoi andi cotype NoZ32. CaluAcads Scie Olen: cene(?) (or Miocene?) of northwestern Oregon. Genus MANGILIA Risso Mangilia kernensis, new species Plate 7, figures 6a and 6b. Shell slender and small, fusiform, with seven or eight whorls, spire high with an acute apex; whorls angulated a little above the middle, concave above, convex below, sculptured with twelve to fourteen axial ribs and about ten spiral threads, five of moderate size below the angle and four or five very fine spiral lines above the angle; axial ribs most prominent below the angle and rising to small nodes on the shoulder ; interspaces equal in width to the ribs and frequently carrying intercalary lines; suture distinct, appressed ; body-whorl ornamented with ten to twelve spiral threads between which are secondary spiral lines; aperture elliptical, with a simple outer lip; columella Vou. IV] ANDERSON AND MARTIN—NEOCENE RECORD : 95 slightly incrusted, straight; canal short, posterior sinus deep and narrow, near the suture. Dimensions :—Altitude of the type, 6 mm.; diameter of the last whorl, 2 mm. Type :—No. 233, and cotype No. 234, Cal. Acad. Sci., lower Miocene of Kern River, California, locality 65, on the west bank of a small canyon 1% miles northeast of Barker’s ranch house. Mangilia howei, new species Plate 7, figure 7. Shell small, fusiform, with five whorls; spire elevated ; whorls slightly convex, crossed by seven strongly raised vertical ribs with wider interspaces; spiral sculpture consisting of fine threads which are most prominent on the anterior portion of the last whorl; aperture elliptical, with an arcuate outer lip; columella incrusted, canal short and wide. Dimensions :—Altitude of the type specimen, 6 mm. ; maxi- mum diameter, 2.5 mm. Type:—No. 234, Cal. Acad. Sci., lower Miocene of Kern River, California, locality 68, on the north bank of Kern River about 34 mile west of the power plant and about 3 miles east of the Rio Bravo ranch house. Genus BULLA Klein Bulla cantuaénsis, new species Plate 5, figures 3a and 3b. Shell one inch or more in length, broadly elliptical, smooth or showing only regular lines of growth; aperture extending the full length of the shell, ovate in front, narrowed behind; outer lip longer than the body-whorl; umbilicus deep and nar- row at the posterior end, closed or hidden anteriorly. Dimensions :—Altitude of the type specimen, 24 mm. ; diam- eter, 15 mm. Occurrence :—Shells of this species are abundant in the Temblor beds just north of Cantua Creek and in beds of doubt- ful age west of Coalinga. December 30, 1914. 96 CALIFORNIA ACADEMY OF. SCIENCES [Proc. 47H Ser. Type :—No. 235, and cotype No. 236, Cal. Acad. Sci., from the Temblor beds one mile north of Cantua Creek, western Fresno County, California, where it is associated with Turritella ocoyana Conrad, Chione temblorensis Anderson, Astrodapsis merriami Anderson, and many other Temblor species. co ine 98 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. EXPLANATION OF PLATE 1 All figures natural size Fig. la. Chione panzana, new species. Type. Lower Miocene of San Luis Obispo Co., California. Fig. lb. Chione panzana, new species. Same locality as fig. la., showing the hinge plate. Fig. 2a. Chione (Lirophora) latilaminosa, new species. Type. Exterior of left valve. Lower Miocene of Kern River, California. Fig. 2b. The same. Dorsal view. Fig. 2c. The same. View of hinge plate of left valve. Fig. 3a. Cardium weaveri, new species. Oligocene(?) (or Miocene) of northwestern Oregon. Fig. 3b. The same. Type. Same locality ‘as fig. 3a. Z PROC. CAL. ACAD. SCl., 4th Series, Vol. IV. [ANDERSON AND MARTIN] Plate 1 100 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Ser. EXPLANATION OF PLATE 2 All figures natural size Fig. 1. Chione margaritana, new species. Type. Exterior of right valve. Santa Margarita Formation of the Coalinga region, California. Fig. 2. Astrodapsis peltoides, new species. Type. Santa Margarita Formation of the Coalinga region, California. Fig. 3a. Tellina nevadensis, new species. Type. Exterior of right valve. Lower Miocene of Kern River, California. Fig. 3b. The same. Exterior of left valve. Lower Miocene of San Luis Obispo County, California. Fig. 3c. The same. Interior of the left valve. Same locality as fig. 3a. PROC. CAL. ACAD. SCI., 4th Series, Vol. IV. [ANDERSON AND MARTIN] Plate 2 102 CALIFORNIA -ACADEMY OF SCIENCES [Proc. 47H Ser. EXPLANATION OF PLATE 3 Fig. la. Diplodonta buwaldana, new species. Natural size. Right valve. Lower Miocene of Kern River, California. s Fig. lb. The same. Type. Natural size. Left valve. Same locality as g. la. Fig. 2. Yoldia newcombi, new species. Type. Natural size. Lower Miocene of Clallam County, California. Fig. 3. Yoldia temblorensis, new species. Type. Natural size. Lower Miocene of Kern River, California. Fig. 4. Semele morani, new species. Type. Natural size. Lower Mio- cene of San Luis Obispo County, California. Fig. 5a. ‘Mactra sectoris, new species. Type. Natural size. Lower Miocene of Kern River, California. i Hips 5b, 5c, 5d, and 5e. The same. Natural size. Same locality as g. 5a. Fig. 6a. Transennella joaquinensis, new species. Type. XZ. Lower Miocene of Kern River, California. Figs. 6b and 6c. The same. X2. Same locality as fig. 6a. Fig. 7a. Poromya gabbiana, new species. Type. Natural size. Ex- terior of right valve. Lower Miocene of eastern San Luis Obispo County, California. Fig. 7b. The same. Natural size. Same locality as fig. Za. Fig. 8a. Leda ochsneri, new species. Type. Natural size. Lower Mio- cene of Kern River, California. Figs. 8b and 8c. The same. Natural size. Same locality as fig. 8a. Fig. 9. Donax triangulata, new species. Type. X2. Lower Miocene of Kern River, California. Fig. 10a. Pecten sancti-ludovici, new species. Type. Natural size. ee valve. Middle Miocene of eastern San Luis Obispo County, Cali- ornia. Fig. 10b. The same. Natural size. Showing the left valve. Same locality as fig. 10a. Fig. lla. Tellina wilsoni, new species. Type. Natural size. Lower Miocene of eastern San Luis Obispo County, California. Fig. 11b. The same. Natural size. The same locality as fig. lla. PROC. CAL. ACAD. SCI., 4th Series, Vol. IV. [ANDERSON AND MARTIN] Plate 3 da 6a 8b 7b 11b ren pated re oh 104 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Ser. EXPLANATION OF PLATE 4 All figures natural size Fig. 1. Melongena californica, new species. Type. Lower Miocene of eastern San Luis Obispo County, California. Fig. 2. Siphonalia posoénsis, new species. Type. Same locality as fig. 1. Fig. 3a. Agasoma oregonense, new species. Type. Oligocene(?) of northwestern Oregon. Fig. 3b. Agasoma oregonense, new species. Same locality as fig. 3a. Fig. 4. Turritella carrisaénsis, new species. Type. Middle Miocene of eastern San Luis Obispo County. Fig. 5a. Agasoma yaquinanum, new species. Type. Miocene of the Oregon coast, four miles north of Yaquina Bay. Fig. 5b. The same. Same locality as fig. 5a, Fig. 6a. Chrysodomus kernensis, new species. Type. Lower Miocene of Kern River, California. Fig. 6b. The same. Same locality as fig. 6a. Fig. 7. Argobuccinum dilleri, new species. Type. Miocene of the Ore- gon coast, six miles north of Yaquina Bay. Plate 4 RSON AND MARTIN] [AND AN \ PROC. CAL. ACAD. SCI., 4th Series, Vol. IV. ANN a AN 106 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47H Ser. EXPLANATION OF PLATE 5 All figures natural size Fig. 1. Trophon gabbianus Anderson. Type locality, North of Coalinga, California. Fig. 2a. Turris carlsoni, new species. Type. Miocene of the Oregon coast, six miles north of Yaquina Bay. Fig. 2b. Turris carlsoni, new species. Same locality as fig. 2a. Fig. 3a. Bulla cantuaénsis, new species. Type. Lower Miocene north of Coalinga, California. Fig. 3b. Bulla cantuaénsis, new species. Same locality as fig. 3a. Fig. 4a. Agasoma acuminatum, new species. Type. Oligocene(?) of northwestern Oregon. Fig. 4b. The same. Same locality as fig. 4a. Fig. 5. Trophon oregonensis, new species. Type. Miocene of the Oregon coast, four miles north of Yaquina Bay. Fig. 6a. _Agasoma columbianum, new species. Type. Oligocene(?) of Pittsburg Bluff, Columbia County, Oregon. Fig. 6b. The same. Same locality as fig. 6a. Fig. 7. Fusinus empireénsis, new species. Type. Empire Formation of Coos Bay, Oregon. PROC. CAL. ACAD. SCI., 4th Series, Vol. IV. [ANDERSON AND MARTIN] Plate 5 ayy heer nak bins ae Wy Ops 108 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. EXPLANATION OF PLATE 6 All figures natural size Fig. la. Thais trophonoides, new species. Type. Lower Miocene of Kern River, California. Fig. 1b. The same. Same locality as fig. la. Fig. 2a. Cancellaria sanjosei, new species. Type. Lower Miocene of eastern San Luis Obispo County, California. Fig. 2b. The same. Same locality as fig. 2a. Fig. 3. Thais nehalemensis, new species. Type. Oligocene(?) of northwestern Oregon. Fig. 4a. Thais blakei, new species. Type. Lower Miocene of Kern River, California. Fig. 4b. The same. Same locality as fig. 4a. Fig. 5a. Molopophorus gabbi Dall. Oligocene(?) of Pittsburg Bluff, Columbia County, Oregon. Fig. 5b. The same. Fig. 6. Thais panzana, new species. Type. Lower Miocene of eastern San Luis Obispo County, California. Fig. 7a. Molopophorus dalli, new species. Type. Oligocene(?) of Pitts- burg Bluff, Columbia County, Oregon. Fig. 7b. The same. Same locality as fig. 7a. Fig. 8. Turris lincolnensis, new species. Type. Miocene of the Oregon coast, six miles north of Yaquina Bay. Fig. 9a. Drillia ochsneri, new species. Type. Lower Miocene of Kern River, California. Ji Fig. 9b. The same. Same locality as fig. 9a. Fig. 9c. The same. Same locality as fig. 9a. Fig. 10a. Drillia wilsoni, new species. Type. Lower Miocene of eastern San Luis Obispo County, California. Figs. 10b and 10c. The same. The same locality as fig. 10a. PROC. CAL. ACAD. SCl., 4th Series, Vol. IV. [ANDERSON AND MARTIN] Plate 6 110 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47H SEr. EXPLANATION OF PLATE 7 Fig. la. Drillia ocoyana, new species. Type. Natural size. Lower Miocene of Kern River, California. Fig. lb. The same. The same locality as fig. la. Fig. 2a. Drillia antiselli, new species. Type. Natural size. Lower Miocene of Kern River, California. Fig. 2b. The same. Same locality as fig. 2a. . Fig. 3a. Drillia buwaldana, new species. Type. Natural size. Lower Miocene of Kern River, California. Figs. 3b and 3c. The same. Same locality as fig. 3a. Fig. 4a. Drillia columbiana, new species. Type. 2. Oligocene(?) of northwestern Oregon. Fig. 4b. The same. Same locality as fig. 4a. Fig. 5a. Drillia temblorensis, new species. Type. X2. Fig. 5b. The same. Same locality as fig. 5a. Fig. 6a. Mangilia kernensis, new species. Type. <3. Same locality Fig. 6b. The same. X3. Same locality as fig. la. Fig. 7. Mangilia howei, new species. Type. 3. Lower Miocene of Kern River, California. Fig. 8. Bathytoma condoniana, new species. Type. Natural size. Mio- cene of the Oregon coast, four miles north of Yaquina Bay. Fig. 9a. Epitonium williamsoni, new species. Type. Natural size. Fig. 9b. The same. Natural size. Same locality as fig. 9a. Fig. 10. Epitonium posoénsis, new species. Type. Natural size. Lower Miocene of Kern River. Fig. Ila. Amphissa posunculensis, new species. Type. Natural size. Fig. 1lb. The same. Natural size. Same locality as fig. lla. Fig. 12. Cerithium arnoldi, new species. Type. Natural size. Lower Miocene of Kern River, California. Fig. 13a. Fossarus dalli, new species. Type. 3. Lower Miocene of Kern River, California. Fig. 13b. The same. X3. The same locality as fig. 13a. Fig. 14a. Nassa lincolnensis, new species. X2. Type Oligocene(?) of northwestern Oregon. ‘i ae 14b. Nassa lincolnensis, new species. X2. Same locality as g. 14a. Fig. 15a. Niassa blakei, new species. Type. X2. Lower Miocene of Kern River, California. Fig. 15b. The same. 2. Same locality as fig. 15a. Fig. 16. Nassa antiselli, new species. Type. 2. Eastern San Luis Obispo County, California. Fig. 17. Nassa ocoyana, new species. Type. 2. Lower Miocene of Kern River, California. Fig. 18a. Pyramidella cooperi, new species. X2. Type. Lower Mio- cene of Kern River, California. Fig. 18b. The same. X2. The same locality as fig. 18a. Fig. 19a. Eulimella californica, new species. Type. 3. Lower Mio- cene of Kern River, California. Figs. 19b and 19c. The same. 3. Fig. 20. Eulimella gabbiana, new species. Type. 3. Lower Mio- cene of Kern River, California. Fig. 21. Lacuna carpenteri, new species. Type. 2. Lower Mio- cene of Kern River, California. Fig. 22. Niso antiselli, new species. Type. <3. Lower Miocene of Kern River, California. Fig. 23a. Eulimella ochsneri, new species. Type. <3. Lower Mio- cene of Kern River, California. Fig. 23b. The same. X3. The same locality as fig. 23a. Fig. 24. Eulimella dilleri, new species. Type. 3. Oligocene(?) of northwestern Oregon. PROC. CAL. ACAD. SCI., 4th Series, Vol. IV. [ANDERSON AND MARTIN] Plate 7 15a 15b 14b 20 18b 18a 112 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47H Ser. EXPLANATION OF PLATE 8 All figures natural size except figs. 3a and 3b. Figs. la, 1b, 1c, and 1d. Cancellaria dalliana Anderson. Lower Miocene of Kern River, California. Fig. 2a. Calliostoma pacificum, new species. Type. Oligocene(?) of northwestern Oregon. Fig. 2b. The same. Same locality as fig. 2a. Fig. 3a. Admete clatskaniénsis, new species. Type. X2. Oligo- cene(?) of northwestern Oregon. Fig. 3b. The same. 2. Same locality as fig. 3b. Fig. 4a. Cancellaria rotunda, new species. Type. Oligocene(?) of northwestern Oregon. Fig. 4b. The same. Same locality as fig. 4a. Fig. 5a. Cancellaria nevadensis, new species. Type. Lower Miocene of Kern River, California. Figs. 5b, 5c, and 5d. The same. Kern River. Figs. 6a, 6b, 6c, and 6d. Cancellaria lickana, new species. Fig. 6a, type. Lower Miocene of Kern River, California. Figs. 7a, 7b, and 7c. Cancellaria posunculensis, new species. Fig. 7a Type. Lower Miocene of Kern River, California. Figs. 8a, 8b, 8c. and 8d. Cancellaria condoni Anderson. Lower Miocene of Kern River, California. PROC. CAL. ACAD. SClI., 4th Series, Vol. IV. [ANDERSON AND MARTIN] Plate 8 (VITAAM GMA MO2AACMAI PROC. CAL. ACAD. SCI., 4th Series [ANDERSON AND MARTIN] Plate S QUTLINED BY F.M. ANDERSON AREAL GEOLOGY TEMBLOR BASIN BZ TEMBLOR BASIN sai 7 aN =) ~ 4 = — A, VP SI2* e FX D E) a fh: SN Ns Se ake \ iS ‘ Ath Series, Vol. IV. PROC. CAL. ACAD. SCl., [ANDERSON AND MARTIN] Plat TILTLTLD Thy’ UY LYLE PLT 0 on Yu y ne YY Yi YY YY YY l; Beoudeic MAP ] YY Yp Yd ' iY 1 | YY YY Paly, SAN JUAN DISTRICT YY LWW, Yi ; : NORTHEASTERN SAN LUIS OBISPO / Wy WW, WYN Yay : =e ; : COUNTY Yj iN, CALIFORNIA UU UY A MY A in ee A rf eee y | 7 ] YY : ‘Gio. ee “aa 7), ee ia a7. a Oma. Fee = a \ \ ANY Ba a “i — ro Vi loV 2992 dth 102 .GAQA MAO .D0R9F | et a re rat rene ( pew XV \y \ i X Z a ae a | N \ f Vy AY AWAY : \ X AN ) »e, , ORO B AE RCR ROO OC OOOO IS A \ ae \, \ SONATA AY AYIA AAV WC SS \ AINA . YAR \ \\ 1X x YX) Ky \, NEN Ny KX) \ x a XA . 0.0.4 . WA ‘ . \ WANK \ KAVA DOD OO) 1 Dane renee ) \ ) WXX \ wa NS \ \ \ x XONAS Xi x \\ WANA XX KX AX \ hy X r 4 x VON KON YX AYA , NYY YY \ AAS / \\ \ vv YVAN RX SOCAN MOA AY. a | F, yf 7 5 ta ay XX XW XV xX ) NAA AN NM AAY ‘ \ xy \\ XX KAA AV ht NRXMAAA 9 \ \ 0. ¢ cx “Ke AY une ‘ ( \\ X NX KX ‘i xX j wy VX NAX XNA NIK XV \ \ NX ‘ " \ eX \ ‘ Xx x \ x ; K XN \\ ) x VAX ‘ x WY fr an % \ ‘2 x X \ , XX X ‘ x XX \ ih “ KX \ ) x X \ ¢ \ 4 x\ n \ NK Wh ¥ VN \ oh WAY) AYN AAA NA \\S \ NANNY AA YAN WN NV \ \\\ \\\ WN AN ee : M \\ \ \ \ ‘ % an \ X \ \ NN SAG zeal ee an . . \ . ee a LWW AY ae WY) oe Y as Yi tl fe nS. Wy yO a / mL j MY Wy Wy eS ve Be i; iy if - PROCEEDINGS Fourth Series - VOLUME I _ Expedition of the California Academy of Sciences to the Galapagos Islands, 1905-1906. — : Pages 1-6. I. Preliminary Description of Four New Races of Gigantic Land Tortoises from the Galapagos Islands. By John ~ Van Denburgh. (/ssued December 20, 1907)... cccecvuccvccves _ Pages 7-288. II. A Botanical Survey of the Galapagos Islands. - Pages 289-322. III. The Butterflies and Hawk-Moths of the Galapagos Islands. By Francis X. Williams. Plates xx—xx1. (ISSHEE OCLODE RST, POLL Ne ee Mane ca ok ee See RE aE _ Pages 323-374. IV. The Snakes of the Galapagos Islands. By John Van Denburgh. Plates xx1I-xxx. (/ssued January 17, 1912) Bie » Alban Stewart. Plates xxxI-xxxiv. ([ssued January 19, 1912) eae Pages 405-430. VI. The Geckos of the Galapagos Archipelago. - Sea By John Van Denburgh. ~ (Jssued April 16, 1912) ......0. 005. Pages 431-446. VII. Notes on the Lichens of the Galapagos Islands. By Alban Stewart. (lssued December 17, 1912)...... VOLUME Ii, Part I Expedition of the California Academy of Sciences to the Galapagos Islands, 1905-1906. Pages 1-132. VIII. The Birds of the Galapagos Islands, with - Observations on the Birds of Cocos and Clipperton Islands _(Columbiformes to Pelecaniformes). By Edward Winslow Gifford. Platesit-vur. (Jssued August 11, 1913).........000-. Pages 133-202. IX. The Galapagoan Lizards of the Genus Tropidurus; with Notes on the Iguanas of the Genera Conolophus and Amblyrhyncus. By John Van Denburgh and Joseph R. Slevin. Plates vim-x1. (Issued September 19, 1913). Pages 203-374. X. The Gigantic Land Tortoises of the Galapagos Archipelago. By John Van Denburgh. Plates 12-124. (Js- SUE SI CRICINGET. Hie L OLIN ee Oe ed onc ets Oe ey hee ae eae > VOLUME III Pages 1-40. A Further Stratigraphic Study in the Mount Diablo Range of California, . By Frank M.Anderson. Plater. (/ssued : Ocf00eF SL, THOS) 2 eve oes BE oe RRL BA a RO UR EER ieee oe —. Pages 41-48. Description of a New Species of Sea Snake from the Philippine Islands, with a Note on the Palatine Teeth in the gon. (dssved December 31, AIS 8. Ped eis Lee eee wen oe Pages 49-56. New and Previously Unrecorded Species of Reptiles and Amphibians from the Island of Formosa. By John Van Denburgh, Ussued December 20° L909) acc oon oe caw cdigies oo ee By Alban Stewart, Plates.1—xix. (/ssued January 20, 1911)... - Pages 375-404. V. Notes on the Botany of Cocos Island. By. Proteroglypha. By John Van Denburgh and Joseph C. Thomp- . 1.00 .90 2.00 39 20° PROCEEDINGS _ Fourth Sarees PERE i Mo ceca ea ea VOLUME Jl—Continued | Pages 57-72. Water Birds of the Vicinity of Point Pinos, California. soe By Rollo Howard Beck. (lsswed September 17, 1910)... 0.0.4 Pages 73-146. The Neocene Deposits of Kern River, California, -and the Temblor Basin, ByFrank M. Anderson. Plates 1-xI1iI. (AssuediNOUEHOEK: DS, LIT D NE aks at ey haa ie enon eases Maes Pages 147-154. Notes on a Collection of Reptiles from Southern | California and Arizona. By John Van Denburgh. (Jssued GP ARUATY LIE TIL) Be aii Locteae oe nat BRT Spsrane chat aial wre ee ehehe eho raee chase LEE Pages 155-160. Notes on Some Reptiles and Amphibians from Oregon, Idaho and Utah. By John Van Denburgh. (/ssued FANRAPY LPN ILE) Coir sae Bae eA BO Ce ae Seyret Pages 161-182. Geologic Range of Miocene Invertebrate Fossils of California. By James Perrin Smith. (/ssued April 5, /9/2)... Pages 183-186. Description of a New Genus and Species of Sala- mander from Japan. By Surgeon J. C. EO U. S. Navy. Plate xiv. Ussued May 3, 1712) occ. cewen vec we nts ceed re cues Pages 187-258. Concerning Certain Species of Rendies and Am- phibians from China, Japan, the Loo Choo Islands, and Formosa. By John Van. Denburgh. (Jssued December 16, 1912.) .. 01.4. Pages 259-264. Notes on Ascaphus, the Discoglossoid Toad of North America. By John Van Denburgh. (/ssued December PE, LOLI ie er tii atk elec Cea Se geyseaia peste w/a tetoce are oy Pca aN spe ace fe Pages 265-390. A Distributional List of the Mammals of Canora By Joseph Grinnell. Plates xv-xv1. (/ssued August 28, [913) Pages 391-454. A List of the Amphibians and Reptiles of Arizona, with Notes on the Species in the Collection of the Academy. By John Van Denburgh and Joseph R. Slevin. Plates xvu- XXVIII. (Issued November Opal DN GEA SoA SAS Iss teny atin as | VOLUME IV : Pages 1-13. 1. Report of the President of the Academy for ‘the Year I913.> II. George Davidson. (Jssued April 6, 1914) Sern : ifornia, and Neocene Deposits of the San Juan District. By Frank M. Anderson and Bruce ‘Martin. Plates 1-10. (/ssued DIECEIDELSORL ILA ie ice OE INR SAS OA RES NG Pages 113-128. IV. The Fauna of the Siphonalia sutterensis Zone in the Roseburg Quadrangle, Oregon. By Roy E. Dickerson. Plates 41-12) (Usswed December30, LLP) on oa ee eas ~ Pages 129-152. V. Reptiles and Amphibians of the Islands or the West Coast of North America. By John Van Denburgh and Joseph R. Slevin. (Issued December 350, 1914). 00... cv use ee eens ~ Pages 153-160. VI. The Pocket Gopher of the Boreal Zone on San Jacinto Peak. By J. Grinnell and H. S. seat: (Issued Bierergbey 90, IOTA) i 8 cae eerie Se - The Academy cannot supply any of its publications issued before the year 1907, its entire reserve stock having been destroyed in the conaera: tion of Sue 1906. 50 29 75 Pages 15-112. III. Neocene Record in the Temblor Basin, Calis sae 500 Ae 50 oe 76 ae p25 vx on. IV, pp. 113-128, pls. jh, a Curator. Deportnent of Invertebrate Paleontology PROCEHEDINGS OF THE CALIFORNIA ACADEMY OF SCIENCES FourtTH SERIES. Wow. HV pp. 113-128) pls. 11-12. DEcEMBER 30, 1914. The Fauna of the Siphonalia sutterensis Zone in the Roseburg Quadrangle, Oregon BY: ROY FE. DICKERSON DEPARTMENT OF INVERTEBRATE PALEONTOLOGY. INTRODUCTION. A definite connecting link between the Tejon group of Ore- gon and that of California appears to be present in the upper- most portion of the Umpqua formation on the Umpqua River near the mouth of Little River. The fauna upon which this correlation is based was obtained by Mr. Bruce Martin, until recently Assistant Curator of Paso RA gy of the California Academy of Sciences. The Siphonalia sutterensis Zone of California is found typi- cally at the Marysville Buttes.” Other localities where it has been recognized also are at Oroville? beneath the Older Basalt of Oroville, South Table Mountain, and near Ione*, Amador County, California, and near Merced Falls, Merced County, California. In all of these localities this zone of the Tejon group is the only one present, the lower portion of the Tejon being absent. The beds at the Marysville Buttes containing the Siphonalia sutterensis fauna rest directly upon rocks of Chico-Cretaceous 1 Dickerson, R. E., Fauna of the Eocene at apenas Buttes, California, Univ. Calif. Publ., Bull. Dept. Geol., vol. 7, pp. 257-298, 1913 2 Dickerson, R. E., Note on the Fauna Zones of the Tejon group, Univ. Calif. Publ., Bull. Dept. Geol., vol. 8, pp. 17-25, 1914 3 Dickerson, R. E., The Ione Pca of the Sierra Nevada Foothills, A Local Facies of the Upper Tejon- Eocene, Science, New Series, vol. 40, pp. 67-70, 1914. 114 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. age. The beds at Oroville were laid down upon the Basement Complex of the Sierra Nevada and the Chico. The so-called Ione formation, a local facies of the Tejon group which occurs typically at Ione and at Merced Falls, rests unconformably upon the Mariposa slates and other members of the Basement Complex. At the Oregon locality, however, a great thickness of ten thousand feet of Tejon strata lies below the beds which yielded the fauna described in this paper. The writer’s previous con- clusions from a study of the Siphonalia sutterensis fauna were ~ based upon stage of evolution, identity of a few species whose ranges were limited to the uppermost beds in the Tejon in the San Francisco Bay region, and the absence of many species which were characteristic of the lower zones of the Tejon. The recognition of the Siphonalia sutterensis fauna in Oregon gives stratigraphic confirmation concerning the position of this fauna in the Eocene time scale of the Pacific Coast; i. e., the Siphonalia sutterensis Zone is the youngest Eocene thus far recognized on the Pacific Coast. STRATIGRAPHY. The stratigraphic relations at the two collection points are described by Martin as follows: ‘The beds at locality 24 dip east at a low angle. The strike is nearly north and south. The rock at this locality is a massive, blue-gray sandstone overlaid by shale.” At locality 25, Martin observed a dip of 20° East and a strike of North 10° East. Mr. Diller, in the Roseburg Folio, describes this section as follows: “The Umpqua is by far the thickest formation in the Roseburg Quadrangle, but, on account of the lack of good ex- posures of certain members of the series, the whole could not be accurately measured. The best outcrops are along the Little River, where a continuous section of a portion of the series is well exposed. This portion has a thickness of about 7500 feet. It is interrupted on the northwest by the large mass of diabase, beyond which, as shown in Section B, about 4500 feet of still lower beds are seen, making a total thickness of approxi- mately 12,000 feet for the entire exposed formation. It in- creases in thickness to the northwest and has wide distribution throughout the Coast Range.’’ Diller’s Section B places the localities described above about 2000 feet below the top of the Tejon. VoL. IV] DICKERSON—SIPHONALIA ZONE, OREGON FAUNAL RELATIONS. us) The fauna obtained at these two localities is as follows: LIST OF FOSSILS FROM THE UMPQUA FORMATION. Barua tvannvonse dy Gall by snes ae eta kl esP Nea ON Or van GNA eam Cea AL Cardium marysuillensis Dickerson... eee Gaxdiummorecwert) Galen ee CELE is BOLE Ub IS ale Grossarallizes) senvidentata Coopete...0 ee ea Crassatellites washingtoniana Weavet.........----.---2-.2-----200e-ee eee Garcia partis h Cally yee NEL Ae EUAN UR AADAC ae MRS ae UD Cornbilaionnit Galo psi Nes ie Se DEMS EN Shh Ole et Nabe atig A is ND OSV TONES PECTS Spy tees ee EUAN NENA Ce AUN AN iL Ren APs ALND AL a NS (UMCOGTES SOBRE CaN ee A OE AOU A Givcumews cocentca Weaver.) WON Uy an DY Ne PIECING GM GNe lace ay Gally iy lsni Us ici URC CANIS LON chy Ucn) WA OGIADUDS \ OAT HRALES (GENS) 0) Due Eo Mencia nnorniin Gallia eu ee UO UN RR ON Ty yOu EUs ES Wien Tai mOuaiusy Gap pion ieee AOL Eada sey NMR ta) ee et Macrocolisiamconradiana,) (Gabbe eae Ecco eos (Gai) eet ee GLOOM ARTI CNS PEELE Sie cee el AE HULA NI Ue eg ON Sone Ostncania cae wets Caine tC ORL eV bes OLE AEA een UP TElanwweaveniMeny SPECIES! iis COU MAIN ANC Me UO SN TMi Os, Venericardia plamicosta merriami, new subspecies. .......-.------------------ YVigihns wearin iis (Gai dese PAIAUELOP SIG hOWCERSOMIs EW) (SPECIESs vals Suen ee Nae Ea AAT ORFOSES, CUGGOAG (CAV) Os per oer et AUS Amauropsis UMpQuaensis, NEW SPECIES.......-.----.-2ee eee eee eee eee Ancilla (Oliverato) californica Coopet..n.n.-- 2... cece cece eee Cancellarstormsianay WickerSone ie Ui ner Ceriihiopsis aliernata Gab pecs weenie aie ea cee RAN Cussigaria tuber enlataly (Gali) oer, WEEE TNO LAE n ENS Chaz cllanismecies ie WOON eal RE NY WEN SRG AU uA Gae e oO Calypircaliie Centrica iGGalbb)) eee ie ee PSU SPO Aas Gueh nas costatan Gal Dena en RU Nee Wl aNn Ui bai WCE Chrysodomus martini Dickerson... oo... cc eee eeeee DCH LOM UA SP CClES eke ed SONU AU ENUM) UUW EL IBC OY NSIS GAC RUOLUGHES. (CD) Oe te ee EA COW SUS) COOPCTUs Galle Manian Wises clusas YUU NGM Aude DRE Ne AVON Oy Ae WE OL OLR CIN CULT. TE GN Cally ee ANY US LSS NIL EAL EAU iain) Dall Ie) Naticavnanmibales Mew SPECles ia ly AOU NA ei uIC MAT NEC a inn INGOT OL COLYER HATEOS) KGB 0) Dees he NA INieveritan se Gta Gal Deena nah Gia SU ALT IN ale SOE ae LON SURNAME SAE IN DCTS ION AY OSE (Cee) vy NN EA EEN I ral a ea Okeela Toreasop (Calon ee Ora MIdes \COnDOniE Ola! COOPeI as nk aed end es eel aN) Pseudoliva dilleri, new species... Ie lan canals fer cay Galt by seal aaa ra nied sua NILE ies MILES thea AERA O ORIN Suphonalia sutterensis Dickerson SUrEUladavistanas, (COOMen) lea Maa iiy an IN aoe uu ia DG ILONEN LOKTE Gabbe OUND ANE OMEN UN ED MA LAND aN ELVIS UW: RUT RILELla METKIBINEs DICIKETSOM Woe soe eae Meas MV aaa kee Ha MTHS SUTUTCIUSS (COOPET eee mee AON) Sena alt AU ea) CRD MAAN IR), x XXX XXXX x xX x x x XxX KX KKXXXKX 116 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. Several forms in this fauna have not been previously reported from any other localities except those of the Marysville Buttes and Oroville South Table Mountain. These species are as fol- lows: Chrysodomus martim, Cardium marysvillensis, Sipho- nalia sutterensis, Caricella stormsiana, Surcula davisiana, and V enericardia planicosta merriamu, new subspecies. In addition to these species, Ancilla (Oliverato) californica, Turris suturalis and Neverita globosa, while not restricted to the Siphonalia sutterensis Zone of the Tejon group of California, are quite characteristic and abundant in this zone. The other species, except the new ones listed, have a great range in the Tejon of California and most of them are found throughout its entire thickness. Amauropsis alveata, Rimella canalifera, and Turritella uvasana, have not as yet been reported from the Siphonalia sutterensis Zone of the Marysville Buttes. These three species are very common forms in the portion of the Tejon below the Siphonalia sutterensis Zone. The occurrence of these forms along with the characteristic forms of the Siphonalia sutterensis Zone determines the position of the strata containing this fauna in reference to the faunal zones of the Tejon group of California. The fauna seems to present a stage of development between that of Zone 3 of the Diablo region and the fauna of the Siphonalia sutterensis Zone of the Marysville Buttes. The fauna obtained from the uppermost portion of the Umpqua formation appears to be more closely related to the Siphonalia sutterensis Zone than to the fauna of Zone 3, and on this account, it is tentatively placed as the lower- most portion of the Siphonalia sutterensis Zone. Locality 24 is situated on the east bank of the north fork of the Umpqua. It is near the bend of the river, one-quarter of a mile north of Glide postoffice. It is in the southwest quarter of See mS mle Zoy Siero ue Locality 25 is on the east bank of the Little River, and underneath the bridge which crosses it at its mouth. It is near the center of Sec. 19, T. 26 S., R. 3 W. VoL. IV] DICKERSON—SIPHONALIA ZONE, OREGON LZ PITARIA MARTINI, new species. Plate 11, figures 2a, 2b, 2c. Shell of moderate size; elongate, with beaks slightly anterior of the center; anterior dorsal margin somewhat concave; the slightly convex posterior dorsal margin sloping less steeply ~ than the anterior margin; anterior end sharply rounded; pos- terior end narrowly rounded; ventral margin convex, fluted; a marked umbonal ridge extending to a point on the ventral _ margin two-fifths of the distance from the posterior end; a shallow groove running posteriorly, and parallel to the um- bonal ridge; lunule long, narrow; escutcheon indistinct. Dimensions: Height, 32mm; length, 42mm. Type :—No. 237, and cotype, No. 238, California Academy of Sciences. Locality 25, Roseburg Quadrangle, Oregon, near the center of Sec. 19, T. 26 S., R. 3 W., on the east bank of Little River at its confluence with the Umpqua, underneath the bridge at that point. Named for Mr. Bruce Martin, sometime Assistant Curator of Paleontology, California Academy of Sciences. TIVELA WEAVERI, new species. Plate 11, figures 3a, 30, 3c. Shell trigonal, with beak central, equivalve; the nearly straight anterior margin sloping steeply to a narrowly rounded anterior end; the slightly convex posterior margin sloping al- most as steeply as the anterior ; posterior end rounded broadly ; base broadly rounded; hinge of right valve exhibiting three strong cardinals and a socket for a lateral in the anterior por- tion of hinge plate; pallial sinus appearing to be a small V- shaped one; lunule and escutcheon indistinct. Dimensions: Height, 29mm; width, 31mm. This species resembles Crassatellites grandis (Gabb) in gen- eral form. Its shell and hinge plate are not nearly so heavy as those of C. grandis. Common at localities 24 and 25. Type :—No. 239, and cotype, No. 240, Cal. Acad. Sci. Lo- cality 25, Roseburg Quadrangle, Oregon, near the center of Sec. 19, T. 26 S., R. 3 W., on the east bank of Little River at its confluence with the Umpqua, underneath the bridge at that point. Named in honor of Professor Charles E. Weaver of the Uni- versity of Washington. 118 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. VENERICARDIA PLANICOSTA MERRIAMI, new subspecies. Plate 11, figures la and 1D. This subspecies of V. planicosta is apparently the end mem- ber of an evolutionary series which begins with the typical V. planicosta in the Martinez, the Lower Eocene group of Cali- fornia. The middle member is V. planicosta hornu (Gabb) of the lower Tejon. ‘This form in the adult stage lacks the marked radial ribbing of V. planicosta hornu (Gabb), and it is in general a higher form as well. The concentric ribbing of this form is much stronger than that of the lower Tejon sub- species. Young individuals, however, resemble the lower Tejon form so closely that one is not warranted in recognizing the subspecies upon the basis of the immature forms. Dimensions: Height, 70mm; length, 70mm. This subspecies resembles V. potapacoensis Clark & Martin, of the Maryland Eocene in that the radial ribbing in both forms is becoming obsolescent. They appear to differ in shape, however. The type, which is figured, is an extreme case of lack of radial ribbing. Other specimens associated with it at the same locality show fairly distinct ribbing in the neighborhood of the umbones. ‘This species is one of the most characteristic forms of the Siphonalia sutterensis Zone. It occurs abundantly but poorly preserved at a University of California locality eight miles south of Ione, Amador County, California, at the O’Neill Sandstone (Ouarny secs 27, (0) jo NT REO PMD italy @ B. L. and M., in strata which were previously recognized as Ione. It is associated at this place with Meretrix hornu Gabb, Turritella merriami Dickerson, and a few other species. This fauna proves the Ione to be only a facies of the Tejon Eocene. Type:—No. 241, and cotype, No. 242, Cal. Acad. Sci. Lo- cality 25, Roseburg Quadrangle, Oregon, near the center of Sec. 19, T. 26 S., R. 3 W., on the east bank of Little River, at its confluence with the Umpqua, underneath the bridge at that point. Named in honor of Professor J. C. Merriam of the Uni- versity of California. VoL. IV] DICKERSON—SIPHONALIA ZONE, OREGON 119 NATICA HANNIBALI, new species. Plate 12, figures 5a and 5b. Shell large, with low, partially immersed spire and very large subquadrate body-whorl; whorls five or six in number, the penultimate whorl partially covered by body-whorl; upper por- tion of body-whorl and the penultimate whorl forming a some- what flattened surface above which the small spire rises ab- ruptly; sides of spire-whorls only slightly convex and sloping away from the immersed linear suture with a uniform angle; the portion of the body-whorl near the suture rising above the suture and forming a distinct ridge; the portion of the whorl a short distance below this ridge concave, making a groove similar to that of the genus Gyrodes; a marked swelling below this groove making a shoulder about a third of the whorl length below the suture; anterior two-thirds of body-whorl only slightly convex; peculiar incremental lines mark the body- whorl and further emphasize its peculiarities ; these lines bowed forward in the vicinity of the groove and outward on the lower portion of the whorl; outer lip simple; inner lip incrusted by a thin callus which completely covers the umbilicus, which is con- tinuous with the outer lip; mouth very narrow anteriorly but very broad near the base. Dimensions: Length, 42mm; width of body-whorl, 35mm. This species also occurs in the Tejon of Rose Canyon, San Diego County, California, and in the Tejon about ten miles north of Coalinga, California. Its very characteristic shape renders it easy of identification. Type:—No. 243, Cal. Acad. Sci. Locality 25, Roseburg Quadrangle, Oregon, near the center of Sec. 19, T. 26S., R. 3 W., on the east bank of Little River at its confluence with the Umpqua, underneath the bridge at that point. Coll., F. M. Anderson. Named for Mr. Harold Hannibal, whose collections have added greatly to our knowledge of the Tertiary Paleontology of Oregon and Washington. 120 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. AMAUROPSIS ANDERSONI, new species. Plate 12, figures 2a and 2b. Shell of medium size, solid, thick, moderately elevated, smooth except for growth-lines, with five whorls; spire-whorls rounded, their upper half being slightly tabulate, this tabulation better marked on the body-whorl but none of the specimens has this feature as well developed as Amavtropsis alveata (Conrad). The general dimensions are about the same as in A. alveata, though the width in most specimens is slightly greater. The body-whorl is decidedly globose with semilunar mouth; outer lip simple; inner lip slightly incrusted and nearly covering a small narrow umbilicus. Dimensions: Length, 27mm; width of body-whorl, 25mm. This species resembles Amauropsis oviformis (Gabb) in gen- eral outline but its umbilicus is much narrower and its spire- whorls less rounded than in that species. Type:—No. 244, Cal. Acad. Sci. Locality 25, Roseburg Quadrangle, Oregon, near the center of Sec. 19, T. 26 S., R. 3 W., on the east bank of Little River at its confluence with the Umpqua, underneath the bridge at that point. Coll., Bruce Martin. Named for Mr. F. M. Anderson, Curator of the Department of Invertebrate Paleontology, California Academy of Sciences, who made extensive collections from the region with which this paper deals. AMAUROPSIS UMPQUAENSIS, new species. Plate 12, figures 3a and 3b. Shell large, solid, thick, much elevated, smooth except for in- cremental lines, with six or seven whorls; spire-whorls rounded and their upper third somewhat tabulated. This species is much longer than A. andersoni Dickerson or A. alveata Gabb, and the spire is much higher; body-whorl longer than the width; outer lip simple, with a marked shouldering at linear impressed suture ; inner lip covered by a thin callus which nearly covers a small narrow umbilicus. Dimensions: Length, 41mm; width of body-whorl, 33mm. Type :—No. 245, Cal. Acad. Sci. Locality 25, Roseburg Quadrangle, Oregon, near the center of Sec, 19), 126% 5:, Vot. IV] DICKERSON—SIPHONALIA ZONE, OREGON 121 R. 3. W., on the east bank of Little River at its confluence with the Umpqua, underneath the bridge at that point. Coll., Bruce Martin. Named for the type locality of the species. CERITHIOPSIS OREGONENSIS, new species. Plate 11, figures 5a and 5b. _ Shell elongate conic; upper whorls missing; remaining whorls, except the body-whorl, marked by three strong, equally spaced spiral lines of same strength crossed by axial ribs, the crossing being marked by rounded nodes; a very fine thread found between the spiral lines; suture impressed, linear ; body- whorl marked by four rows of nodes instead of three, as in the spire-whorls, the last row being weaker than the others; fine threads between these spiral lines; base marked by four or five nodose spiral lines and threads, the spiral lines being smaller than those on rest of whorl; aperture ovate-quadrate, with narrow anterior sinus; outer lip thin; canal twisted. Dimensions; Length of broken type, 20mm; width of body- whorl, 4.5mm. This species resembles C. alternata Gabb in shape, but its whorls are nearly flat while those of C. alternata are decidedly convex. ‘The nodes are much stronger than on C. alternata. It differs from C. excelsus Dall in that its whorls are nearly flat and its spiral lines less numerous and larger. Aivpe No. 246,- al) Acad) Set) Locality, 25,) Roseburg Quadrangle, Oregon, near the center of Sec. 19, T. 26 5., R. 3 W., on the east bank of Little River at its confluence with the Umpqua, underneath the bridge at that point. Named for its occurrence in the Eocene of Oregon. SIPHONALIA CLARKI, new species. Plate 11, figures 4a and 4b. Shell fusiform, with high spire; nine whorls; spire-whorls distinctly shouldered and decorated by about nine rounded nodes which exhibit two apices where two strong spiral lines cross them; space between appressed wavy suture and shoulder concave, and covered by about ten spiral threads; flat space be- low the suture marked by two strong spiral lines and by eight to ten spiral threads, this area parallel to the axis of the shell; 122 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. shoulder located one-third of a whorl length below the suture; body-whorl marked by nodes which vary in strength with dif- ferent individuals, and shouldered about one-sixth of a whorl- length below the suture; concave space between the suture and the shoulder marked by about twelve spiral threads ; area below the shoulder marked by spiral lines of variable strength and by a flat-bottomed sulcus located half the whorl-length below the shoulder; outer lip thin, dentate and lirate within; inner lip covered by a thin callus; umbilicus subimperforate ; canal short, twisted to the left. Dimensions: Length of figured specimens, 40mm; width of body-whorl, 17mm. This species is easily distinguished from S. sutterensis Dick- erson, with which it is associated, by its greater length, by its more pronounced spiral ribbing, and by its greater nodosity. Type:—No. 247, Cal. Acad. Sci. Locality 25, Roseburg Quadrangle, Oregon, near the center of Sec. 19, T. 26 S., R. 3 W., on the east bank of Little River at its confluence with the Umpqua, underneath the bridge at that point. Coll., F. M. Anderson and Bruce Martin. Named for Dr. Bruce Clark, Instructor in Invertebrate Paleontology, University of California. PSEUDOLIVA DILLERI, new species. Plate 12, figures la, 1b, 1c, 1d. Shell biconical; whorls five; spire of moderate height, with conical nodose whorls; suture wavy, indistinct, and bordered by a nodose rim on the succeeding whorl; body-whorl marked by two angulations, both being nodose, but the lower one the stronger; a nearly flat, narrow horizontal space just below the suture rim, this area marked, in addition to spiral lines, by the backward bending lines which mark the former position of a sharp V-shaped posterior sinus; a slightly nodose shoulder terminating this narrow shelf of the body-whorl; from this shoulder the shelf sloping downward to a point a third the length of the body-whorl where another occurs; this second angulation ornamented by prominent rounded tubercules about twelve in number ; space between this angulation and the end of the short, slightly-twisted canal marked in its midportion by a deeply impressed groove and by numerous fine spiral lines; a Vot. IV] DICKERSON—SIPHONALIA ZONE, OREGON 123 persistent ribbon-like band, much wider than the space between these spiral lines, about half-way between the tuberculated shoulder and the median groove. This line occurs on most specimens. Dimensions: Length, 34mm; width of body-whorl, 29mm. This species can be distinguished from Pseudoliva volute- formis Gabb by its greater number of nodes, by the double an- gulation of the body-whorl, and by the greater strength and abundance of its spiral lines. The spiral lines of this species resemble those of P. lineata Gabb, but they are stronger and larger ; the tuberculations, however, make it easily distinguish- able. This form appears to have been evolved from P. lineata. Type :—No. 248, and cotype, No. 249, Cal. Acad. Sci. Lo- cality 25, Roseburg Quadrangle, Oregon, on Little River at its confluence with the Umpqua, underneath the bridge at that point. Coll., Bruce Martin. Named in honor of Professor J. S. Diller of the U. S. Geo- logical Survey, whose mapping of the Roseburg Quadrangle made the zonal connection between the Eocene of Oregon and California possible. % “a 1 A +" in tht | 7 7 | \ ‘ i i ] " 4 \ Bit iy 126 Fig. la. wlio: , AG, ADs WG) 4. SO. . 3b. 36! ~ Aa. . Ab. ig. 5a. SD. CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. EXPLANATION OF PLATE 11. Venericardia planicosta merriami, new subspecies, xl. This form in the adult lacks the marked radial ribbing of the typical V. planicosta. 'The type specimen which is figured is an extreme case of this lack of radial ribbing. Other adult individuals associated with it show obscure ribs in the um- bonal region. A very characteristic form of the Siphonalia sutterensis Zone. V enericardia planicosta merriami, new subspecies, x1. ‘This is a figure of a young individual which shows about the same type of ribbing as V. planicosta hornii (Gabb), its probable progenitor. Pitaria martini, new species, xl. A side view of the type specimen. Pitaria martini, new species, x1. Side view of a smaller speci- men than the type. Pitaria martini, new species, xl. View showing hinge of same specimen as Fig. 20. Tivela weaveri, new species, xl. Side view. Tivela weaveri, new species, xl. View showing hinge. Tivela weavert, new species, x1. Side view of smaller speci- men than the type. Siphonalia clarki, new species, x1. Mouth view. Siphonalia clarki, new species, x1. Back view. Cerithiopsis oregonensis, new species, x2. View showing mouth, Cerithiopsis oregonensis, new species, x2. Back view. [DICKERSON] Plate 11 PROC. CAL. ACAD. SCI. 4th Series Vol. IV 128 ig. la. . 1b. es . Id. . 2a. 5 AD. ig. 3a. . 3b. . 4a. . 4b. ig. 5a. ig. 5D. CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. EXPLANATION OF PLATE 12. Pseudoliva dillerit, new species, x1. Mouth view. Pseudoliva dilleri, new species, x1. Back view of same speci- men as Fig. 1a. Pseudoliva dilleri, new species, xl. Back view of small in- dividual. Pseudoliva dilleri, new species, x1. Mouth view of individual figured as Fig. 1c. Amauropsis andersoni, new species, x1. Back view of type specimen. Amauropsis andersoni, new species xl. Mouth view of type. Amauropsis umpquaénsis, new species, x1. Mouth view of type. Amauropsis umpquaénsis, new species, x1. Back view of type. Ancilla (Oliverato) californica Cooper, xl. Back view. ‘This species is characteristic of, but not restricted to, the Siphon- alia sutterensis Zone. Ancilla (Oliverato) californica Cooper, xl. Mouth view. Natica hannibali, new species, xl. Back view. Natica hannibali, new species, x1. Mouth view. [DICKERSON] Plate 12 PROC. CAL. ACAD. SCI. 4th Series Vol. IV is PROCEEDINGS Fourth Series VOLUME I Expedition of the. California Academy of Sciences to the Gala- pagos Islands, 1905-1906. Pages 1-6. I. Preliminary Description of Four New Races of Gigantic Land Tortoises from the Galapagos Islands. By John VanDenburgh. (Issued. December 20, 1907) ....0.002 cesctcceseseeeeinces Pages 7-288. Il. A Botanical Survey of the Galapagos Islands. By Alban Stewart. Plates 1-xix. (Jssued January 20, 1911)........ Pages 289-322. III. The Butterflies and Hawk-Moths of the Gala- pagos Islands. By Francis X. Williams. Plates xx-xxz, (Js- SWAG AO GUO TNT: HO FT) sh RU CRT Seah hoe ae NAN Ot Pages 323-374. IV. The Snakes of the Galapagos Islands. By John Van Denburgh. Plates xxu-xxx. (Issued January 17, 1912)... Pages 375-404. V. Notes on the Botany of Cocos Island. By Alban Stewart. Plates xxxiI-xxxiv. (Issued January 19, 1912).. Pages 405-430. VI. The Geckos of the Galapagos Archipelago. By Joha VanDenburgh. i\(issuad April 16; 1oT2) 2 Pages 431-446. VII. Notes on the Lichens of the Galapagos Islands. By Alban Stewart. Clssued December 17, 1912) tess teseeee teens VOLUME II, Parr I Expedition of the California Academy of Sciences to the Gala- pagos Islands, 1905-1906. Pages 1-132. VIII. ‘The Birds of the Galapagos Islands, with Ob- servations on the Birds of Cocos and Clipperton Islands (Colum- biformes to Pelecaniformes). By Edward Winslow Gifford. PAAE ST ICVTS i CLSSWEE UO US TA TPA GTS ) OM eel. ik CMON de Pages 133-202. IX. The Galapagoan Lizards of the Genus) T'ropi- durus; with Notes on the Iguanas of the Genera Conolophus and Amblyrhyncus. By John Van Denburgh and Joseph R. Slevin. Plates vur-x1. (ssued September 19, 1913) cc... Pages 203-374. X. The Gigantic Land Tortoises of the Galapagos Archipelago. Plates 12-124. By John Van Denburgh. (Issued PepieM Der FOP rOn ANE A NONE Me ML RE UN LOA ath Cae aaa VOLUME Ill Pages 1-40. A Further Stratigraphic Study in the Mount Diablo Range of California. By Frank M. Anderson. Plate 1. (Jssuwed DERG Der ST NTOOG: Ne tase ae AB Nd ah SN ae NaN Nene NYS He neewlee Pages 41-48. Description of a New Species of Sea Snake from the Philippine Islands, with a Note on the Palatine Teeth in the Proteroglypha. By John Van Denburgh and Joseph C. Thomp- Bont Cl ssted! Deremben, 2th 1008 ) ws Vek AVN Aan asl Mei Re Pages 49-56. New and Previously Unrecorded Species of Reptiles” and Amphibians from the Island of Formosa. By John Van Denburghi ;\({ssued. December 20, 1900) -.22 2k enc Pages 57-72. Water Birds of the Vicinity of Point Pinos, California. By Rollo Howard Beck. (Jssued September 17, 1910) -ececccc0----- \ 1.09 50 2.00 35 as 7 ihe ne el By F ae M. Anderson. "Plates i (Issued November 9, Neg) Well Uae Reg Pena aly Pages” 147-154. Notes on a Collection of Be ale from : California and Arizona. By Yee Ves Denburgh. 4 (Ussued LRamudry TE ROTA) th ei ONE Wy CON OE Si Ne Onan et Oe iy Pages 155-160. Notes on Some Reptiles an Ameuiane from Ore gon, Idaho and Utah. | Pe John iG ‘Denbur st) ey Janu- UW ie taht LSS A AUR ORME NNER EAN eats PANU NST SINE ORAS MRAM VOR Sb? WIDE a Ue Rees . Pages 161-182. Geologic Range of Ae lave rebate Puce! of jibes California, By James Perrin Smith. (Issued April 5, 1912). bari Rivciryyas ase 183- 186. Description of a New Genus and Species of an A ae fa - mander from Japan. By Surgeon J. C. sp remeseay U. a ee aN AOR Plate x1v. (Issued May 3, IQ TAN ne UCR ANDES URIS NUN URN CUE dae hg un ey yi : ay Pages 187- 258. Concerning Certain Species a Reptiles ue ae phibians from China, Japan, the Loo Choo Islands, and For- i mosa, By John Van Denburgh. (Issued December 16, 1912)........ SOC) _ Pages 259-264. Notes on Ascaphus, the Discoglossoid Toad of North ee _ America. By John Van Denburgh. (Issued December 21, 1912). Pages 265- 390. A Distributional List of the Mammals of California. a ie By Joseph Grinnell, Plates xv-xvi. (Issued August 28, 1913)... 1.00 | Pages 391-454. A List of the Amphibians and Reptiles of Arizona, with Notes on the Species in the Collection of the Academy. By John’ Van Denburgh and Joseph R. ‘Slevin. _ Plates a onc Rene (os (Issued November By ONS ee Ss sees (Aces ae ao ena Sh aia scone eas aul “VOLUME IV NPT SUAS ane avi ae cae Pages ie 13, ch Report of the President of the Academy § for the Mearid9u3y ie Te IL George Davidson. Cisse April Sop ay ‘a Nba. 15-112. II. -Neocene Record i in the Temblor Basin, Califor- rey. J nia, and Neocene Deposits of the San’ Juan District, San Luis AA tO EON Obispo County. Plates 1-10. By F. M., Anderson and Ley wi CO He Martin. (Issued December 30, 1914) ; AOD es Pages 113-128. IV. The Fauna of the ‘Siphonalia_ sutterensis Gone a ae in the Roseburg Quadrangle, Oregon. Plates 11- 12. By Roy an i) _E. Dickerson. (Issued December 30, TOE uy ONE BUR ADI eh a OOM Pages 129-152. V. Reptiles and Amphibians of the islands’ of the as tan “West Coast of North America. | By John Van Denburgh and — eae - Joseph R. Slevin. (Isswed December 30, (OTe tO Na CEN Kao Pages 153- 160. VI. The Pocket Gopher of the Boreal Zone on San — es age Jacinto Peak. By: Grinnell and H. ss ‘Swarth. oes Me MerewnBer | 20h TODA) cali ey NMR TN Tey CTA ec uate pees Se be ; ik The Academy cannot supply any of | its an alas issued before the _ year 1907, its entire reserve stock having been oe in the conilagra tion of tile: eae Be AM NN PLS ta IAN "Four Seeiss Vou. IV, 1 eae Amphibians ae the Islands on Vest Coast of North America — | e “Curator of the De SPR, ae PROCEEDINGS OF THE CALIFORNIA ACADEMY OF SCIENCES FourtH SERIES VoL. IV, pp. 129-152. DECEMBER 30, 1914 Vv Reptiles and Amphibians of the Islands of the West Coast of North America BY JoHn Van DENBURGH Curator of the Department of Herpetology AND JosePpH R. SLEVIN Assistant Curator of the Department of Herpetology CONTENTS Page nbpoditire tory Mental es yh one ae AM se ERE SE MLAs AU IED aid Bee a 131 shan levOLDIShHID it iMOme rR AU GU U AA Act DON OI NC OWUiE ee Wee 132 Southmbaralllonmlisla mcs wwe analy sine lL ae ace ikOlss sue Ahlen Uk ana eae 134 (AriouINite vious latins UME RU I SkuuUa acl Hue NEEM Mee Eee Ea 134 Sani Miro welk isla ri iiene eg MONT LAC ME AA, ON Ri a Ue SLL ee ACU 134 Saripaye lose slayer cheer 2 nae) UN 2 TEU eU Nol) nt Sa egal dae 135 Sarmtiars C pea z Mls bevry deat ee aU Ube eae ty Ce ee Rese Nee VERA EA ere A 135 Ana apaiy tsar il Gey B AC Ep AUC UMA CAULEY ee SU ce 136 Sar Nicolas ls eum Glee s eek Bets ee i AN NS a CM ae LE A 137 Santamianatraanisiar cls eeu) scala ICL eM a ON NL. Means RRL 137 S rrateasn @autealltraeayy is earns ee alee a Ds eae Seda a eh ee Eater ee ee 137 San le mrenten is erin cl a este ieen fa Ve a, VUE UED NA We OI ONAN LLL ct Ee wh ae 139 MOSK COrONAdOS wee Ms nse els CU UMMA Aa Ue LAA NI OL BOAR au De 139 Sa iartumy ister lien, 2 esac eet EUR ML YBa) cd EAS EL SAB aD 142 SanmGeronimioy pls barn clays Te MMAR ues BUN aN le WN PALE aN RO 142 Eiradalupedticlan eu oes peek ly Nee Nee IUe A AIC Ae wo pA CEN he ONES 143 December 30, 1914 130 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. San) Benito Estar ds ney eI ease Ores He LA ee Rah aca eae Se ae 143 Cerros (Eelam eee OO a SB SIE US Sa AA As gy Ue AR HB 144 Natividad | Wiskaradl yyy Ua aI eh 2 aT CRC Ae Le ane Be 145 Magdalena plslarae Ais ci A MU URE 270 Ae AIRY A aaabs MOC SU ca estes ed a ees 145 Santa Manga titay ‘Ws lamdyy sain sur UA Gh WU SUN va SN eee taNe Cn le Se aa 145 San Benedicto slam diy 2 eee e A RAL AL ALUN Sa SNe EM RS Ee 146 Socorro) slammed ue aN Ns A a ee en OE 146 Clarion) Tislam dhs iien N earache LBs ORI NN ML ae ED ea 146 Anselidemlan Guiacdiavslisha tidy uel Rhee Tk ie Sea Neen ie ellipse LIN a Ne away Url ces 146 Mabey Vs eara dl) ey Ne Uh a OE UES ie AVN DL EL oI 147 SanPed roi Mastin glisters iene. 20 aya ee Ane EE AAAS ae iS A ee Ue 147 Carmien Tslandy) 2h guess Set NU OG WOU La ean eae 147 Sani Jose) slam dle NON) CA NGA ARON NS ER UUUt NA Coe Re 147 PUSPURIELD Set POy WLS eerTcl ses AL eA Sle iL BORA a aa fear ene ee 148 sab eliiisl ana Sees s CoC ETA EDEL aS ea 148 Base mesh Nia ria Sey war sict i cree MIC Lance BRUM GOK iy See NU AA GRMeD IRIN) UENCE 149 Manta Madre i slarie Ye aiegoue Wi AN U0 i BUC AZ COE ACNE eee 149 Maria Gleota iilisarrds: ttn analy meg Maen AR as au Uh eM lg ea oe 149 Meariay Magdalena sista ie s2 esd Cr Nii SAN Mui ie) Mie Oe NUE anaes ee 149 Chpperton islam ewer ao ee eA Mt LAN 2 LUIS Re a eh 150 Cocos slam desea mL N SNA Tea kecd MOUSSE ASL UNGER 150 Vor. IV] VAN DENBURGH AND SLEVIN—ISLAND REPTILES 131 INTRODUCTORY REMARKS. In June, 1905, the Academy published a paper entitled “The Reptiles and Amphibians of the Islands of the Pacific Coast of North America from the Farralons to Cape San Lucas and the Revilla Gigedos.” The greater portion of the edition of this paper and nearly all the specimens upon which it was based were destroyed in the great fire of April, 1906. In building up a new reptile collection for the Academy effort has been made to replace this material. Specimens of most of the species hitherto reported from these islands are now at hand, and a considerable number of kinds not previously known from various islands will be recorded in the following pages. Owing to the fact that the earlier paper is now out of print, it has been thought best to include in this one all species known from these islands, and in order to make the record more complete we have added the species known from islands in the Gulf of California, as well as those from Isabel, Las Tres Marias, Clipperton and Cocos islands. We have at present no specimens from any of the islands in the Gulf of California or from Isabel and the Tres Marias islands. An account of the reptiles of the latter islands has been published by Dr. Stejneger in North American Fauna No. 14, 1899, pp. 63 to 71. The original records of the rep- tiles of the islands of the Gulf of California are either given or referred to in a paper on the herpetology of Lower Califor- nia, published in the Proceedings of the California Academy of Sciences, Second Series, Vol. V, pp. 77 to 162. In this paper the reptilian fauna of thirty-five islands is con- sidered, and some sixty-six species and subspecies are men- tioned. The island distribution of these is shown in the fol- lowing table: [Proc. 4TH SER. CALIFORNIA ACADEMY OF SCIENCES 132 uoyaddry) IN Sor sey serie gyues nyirdsy] asof ues UsULIe) IIe] O1pag ues InqLy uo. eBIpienty el op josuy UOLIe]D pe eee ee eee ee === se<- oo = =--- aoe wees + oa + waee = Be ee | ec ae peed eee ferential ees S| Ss P| aes af ee te | cee Ste ose Coa ee ee fase | poeel cee ees oe | ce a et | alee wane eeee w--- =e-- meee + ance === =--6 yreee -=-= wens nee === ---- oo wee =--- ween wees + oo-8 mane ---- S| seed | ee tea ee |e |e te Sn et aone wane + =o-- + aon aoe meee aa-- wen =a =--- Se lee ae ele ee So [ele ee eee eee Se a eee ee meee noes aee- aa== = eee woes seen pees + mene ae-- O11090G eyiesieyy, ejyues eUus[epsey PEP AEN SO11079 oyusg ues aednyepens OWLUOIay UBS uljiey, ues Sopeuoi0y) sot ajyUsUIs,Q, URS eurleyeg eques eleqieg eyUeRS SEJOOINY ues ede) euy znig eyes esoy e]UeS [Pnsly, ues OAMNnN ouy sen ““SNACUSL BpNeoIOUIOS snjouoysser) ween) |) wesceees qeennereecreasnnacaswecennenaenr-uenat== Bpneoioutss snj}OUoYyI41ar) anne “" Sne[nised snjJOUOYt41ay) Seat] Vaaawesecenceocaassecbenseberaqceeevenserercnenss-cscesccsshart eiyojnd ejjomuy o--- “" 9susd01190 BUOSOUAIY Sa TyIeq snyerestq sn1odojaaG sesceccrnnacss SISUQUOTIPIO weenee en nenen enna n= eyepnorine SI[P19}e] - ByeyNoso.10TW - Bpneorisiu seeneneeneneecneeeecececeereccnsncnesee Towed ByeT[I4S ~* SISUSUT}IeU pergaacee euelLingsueys UWOT[eIe yy qIANVN SNVISIHdNVY GNV SHIlldau CANWISI AO NOILLNETALSIG Eee a eae To9q SsnN1o0doja0S SnUuloiejsoz snzo0dojaaG ‘Tiesustnog sns0dojs0S 21 caval 2) ei) caval caval Cavey caval 210 ““TIUSZI[SIM snzAydejoO19 Se SIJBIJUSA snanest[eg ‘ds snyeuroines “snpidsiy snyjewoimes ““=“stTjesiop snainesosdiq, pane $919} Pinesous}) - IpuassuMo} sIjouy ee ee eg a eae snsojnqeu sijouy ““-snsojnoieqn} snjAjoeporjAyq “snoyroed snjAjoeporseyds poreci ease eyjise1 BLATT snjyenueije sdesoyorijeg Sepa maaan ema arenes snoyroed sdasoyovizeq “SISUSUOT[eIey Sliqnsn], xepojny sliqnsn,] xepojny ee eee VAN DENBURGH AND SLEVIN—ISLAND REPTILES 133 Vou. IV] Het farar & +++ | sone - + = eS esos $0909 uoj1odd1yy W ser, sey SEIIE coms ale o eae ab - erect} cock 5 oc - econ |} coo |P acca df ccc S . eee | = - cree | w--- | «== - a seen » | e--5 - cone | ones | = . : : ase ae a eee mea epee eae nah ele eee ee ie cl cor ec ee = pee eles le =e See : ie | ees wane | on-- ro weee | cece | wene | mene | onn- | ane= | enn | oon pene |) wmen|/tweee |) omeq || meee || emaq | weem || ween | mous ewes | wong | woe | cone | pave - ™ - - - - - oi Peet ae-= | « r =--- | = cone - a--- | - . - = = . . ewes | ween | nee: ace ci = - «| eens on pees = | wee woes | « . Saco a <= = Scom [Pca , oo === were | oe es were | pane 1 UOLIeTD SO1I99 wy be ior c a} le} 5 oyueS nytardsy esof ues IIe, OIpag ues eIpient) PB] op jasuy O11090S eYIesIVy, eyUeS euslepseyy PEPIAHEN oyueg ues odnyjepens owuoIay ues ue, ues sopeuo10g sot ayUsIZ]D ues euljeyey ejUeS eieqieg eyes SB[OOIN' ues ede) euy znig eyueS esoy eyUeS JPnsIf, ues penuljuoj—SNVIEIHdNV CNV SH ILLdau ANV’ISI AO oANnNY OUVy uoyere San raion Seca pone ae ota snuevoliome snj{Apoo019 Bs ““(UNIS9}UL WOUISSOUTST —_ HANIoises SVR TEH KOSS) as [Hsxe snjezo19 ~“snuosa10 snyje}O19 Sone eae ‘ds snjeqo19 snjesuljiq Uoporjshysy Eee ee eae Se eo sninjzeld snapAPy epee ea pa een a Se snyjuexAina sde[q stdo1jojdip stdo1y0j,d1q eee ae cee euozosI[O sijoydossiut siyjadoidweT Soe ge eee ae ae SHINURISU SIeIOD UOYOIeWIAIG: “e[OOI}19Sep Jajiusayeo siydoniwg Bote oe ney ae ie aera Jayiusyeo stydonyg Sanson gaa paeecensa sar ane === snyoudyto1yo0 eus[sisdA PL eS eae ea Re tAuoyjUe UoluRoseg age ee eee WINSOUISI[N} s[e19}e, Woruvoseg Pe UIn}esUul] ~UoTuvoseg ~ I}19eppoq sniqoursérg snjeuruinoe sijaqAxO ge epee eae Sat ae Ra a ones 1oyeiodwt eog a2 7 SI[IUINY UWOPOUOseIS SS Scan ieee a ae ee ne eee a ra lHjapunie velour SHUPIUO}IYS So.DUING| stjerqe, snioydopruraug STR Sc soap asaesare cepa et SNUBDIXOU Sliejns snioydoprursuy WINIelIeu snioydoprwmeuy ““stiAjieu snioydoprursuy pease OAS eat arama ces wre an snpiqni snioydopriutsuy snyeynosiyjnu snioydoprumeuy et ES BIOI9S CIIVOT}IO A Spec “ISUIP[Eq e1yjAISdAY erlredty19 A Be ase na Sa eee aa pa cer aaa ares BURISIOAII vIsSnjueyY — HINVN NOILOAdIaLSIG 134 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. SOUTH FARALLON ISLAND. Only one kind of salamander is known. 1. Autodax lugubris farallonensis Van Denburgh. Five specimens collected June 15-July 1, 1911, by E. W. Gifford, are Nos. 27335 to 27339. ANO NUEVO ISLAND. This island was visited by Mr. R. H. Beck, July 1, 1909. He collected the following lizard: 1. Gerrhonotus czruleus Wiegmann. Eight typical specimens (Nos. 14520 to 14527) were se- cured. These show dark lines between the rows of ventral scales. The dorsal scales are in 16 rows in six specimens, but there are only 14 in Nos. 14520 and 14526. SAN MIGUEL ISLAND. One salamander and two lizards are known from this island. We visited San Miguel in April, 1913, but the weather was not favorable for collecting. 1. Batrachoseps pacificus Cope. Two specimens (Nos. 36083 and 36084) were found under a piece of a fallen fence post in a little gully, April 11, 1913. The costal grooves in these specimens are 18 in number. One of these salamanders had a reddish dorsal band similar to that seen in some specimens of Batrachoseps attenuatus and Pletho- don cinereus. The other showed the uniform yellowish brown coloration characteristic of all other known specimens of B. pacificus. 2. Sceloporus becki Van Denburgh. We failed to find this lizard on San Miguel Island. The Academy collection contains only the type specimen (No. 4537) collected on San Miguel, by R. H. Beck, March 26, 1903. 3. Gerrhonotus scincicauda Skilton. The only specimen collected by us on San Miguel (No. 36082) was found under a stone April 11, 1913. Its dorsal scales are in 14 rows. The temporal scales and those on the arm and forearm are smooth. ‘The dark ventral lines run along the middles of the scale rows. Vor. IV] VAN DENBURGH AND SLEVIN—ISLAND REPTILES 135 SANTA ROSA ISLAND. During our visit in April, 1911, we secured three species. The Hyla had not previously been taken on this island. 1. Batrachoseps pacificus Cope. We failed to find this salamander on Santa Rosa Island, al- though it is known to occur there. 2. Hyla regilla Baird & Girard. Seventeen specimens (Nos. 36103 to 36119) collected April 12, 1913, add this tree-toad to the known fauna of Santa Rosa Island. They seem to differ in no way from mainland speci- mens. 3. Sceloporus biseriatus becki Van Denburgh. The 17 specimens (Nos. 36086 to 36102) secured by us show the coloration characteristic of S. becki. All these speci- mens have the frontoparietal separated from the enlarged supraoculars. Femoral pores vary from 14 to 19; being 14 once, 15 eight times, 16 nine times, 17 nine times, 18 five times, and 19 once. 4. Gerrhonotus scincicauda Skilton. We found one specimen (No. 36085) on Santa Rosa Island, April 12, 1913. The dorsals are in 14 rows. The temporals and limb scales are smooth. The ventral dark lines run along the middles of the rows of scales. SANTA CRUZ ISLAND. In the few hours we were able to devote to collecting on this island we secured two species which had not been taken there before. Six species are now known from this island. 1. Batrachoseps pacificus Cope. Five specimens (Nos. 36149-36153), were taken April 13, 1913, under old bark and from rotten logs in the vicinity of Pelican Bay. Each has 18 costal folds and shows the colora- tion typical of this species. 2. Hyla regilla Baird & Girard. We collected 12 specimens (Nos. 36137 to 36148) near Pelican Bay, April 13, 1913. They were found, several to- gether, in cavities in decaying logs, where they probably had retreated for protection from the dry weather of summer. 136 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47H SER. 3. Uta stansburiana Baird & Girard. We did not secure any specimens of Uta, although this species is known to occur on this island. 4. Sceloporus biseriatus becki Van Denburgh. Twelve specimens (Nos. 36122 to 36133) were collected April 13, 1913. All these specimens have the frontoparietal separated from the large supraoculars by a complete row of scales and show the same coloration as the Santa Rosa speci- mens. The femoral pores vary from 14 to 19; being 16 ten times, 17 five times, 15 three times, 18 once, and 19 once. 5. Gerrhonotus scincicauda Skilton. Three specimens (Nos. 36134-36135 and 36136) were col- lected April 13, 1913. All three are typical of the mainland form. The dorsal scales are in 14 rows. The temporals and the plates on the forearm are smooth, while those on the hind limbs are keeled. The longitudinal lines on the under surface run along the middles of the scale rows. 6. Pituophis catenifer (Blainville). We collected two specimens (Nos. 36120 and 36121) in the vicinity of Pelican Bay, April 13, 1913. No. 36120 has 29 scale rows, gastrosteges 208, urosteges 71, upper labials 8-8, lower labials 13-13, preoculars 1-1, postoculars 3-3, loreals 1-1, temporals 2+3 and 3+-3, postgenials shorter, anal plate undivided. No. 36121 has 29 scale rows, gastrosteges 199, urosteges 54, upper labials 8-9, lower labials 11-11, preoculars 1-1, postoculars 3-3, loreals, 1-1, temporals 3+4 and 4+-3, post- genials shorter, anal plate undivided. With the exception of two rattlesnakes taken on Catalina, these are the only snakes that have ever been collected on any of the California islands, although Pitwophis also has been seen on Catalina Island. ANA CAPA ISLAND. We spent a few hours on Ana Capa Island, April 13, 1913, but found no reptiles. Only one species has been collected there. 1. Uta stansburiana Baird & Girard. This lizard was secured on Ana Capa by Joseph Grinnell, September 4, 1903. Vor. IV] VAN DENBURGH AND SLEVIN—ISLAND REPTILES WS7 SAN NICOLAS ISLAND. Mr. Slevin spent five days on San Nicolas Island, Novem- ber 7-11, 1911. He found only the single species of lizard known from this island. 1. Xantusia riversiana Cope. One hundred and twelve specimens (Nos. 30754 to 30864 and 35793) were secured. These are of various sizes, and show a wide range of coloration. They were found under flat stones just above the high tide line on the beaches. They are very active when disturbed. Careful comparison with our series from San Clemente and Santa Barbara islands has not disclosed any differences. SANTA BARBARA ISLAND. This island was visited by Mr. Slevin, October 4, 1912, and a few hours collecting resulted in finding only the one known species. 1. Xantusia riversiana Cope. Twenty-one specimens (Nos. 35567 to 35587) were col- lected. They were found under rocks near the north end of the island. They seem identical with the specimens from San Nicolas and San Clemente islands. SANTA CATALINA ISLAND. One salamander, two lizards and a rattlesnake have been reported from Santa Catalina Island. We now are able to add a Hyla, a snake and two other species of lizards. 1. Batrachoseps attenuatus (Eschscholtz). The salamanders of Catalina seem not to differ from those of the mainland. 2. Hyla regilla Baird & Girard. Seventy-six specimens (Nos. 26898 to 26973) were collected near Avalon, July 23 to September 8, 1910, by John I. Carlson, and Mr. Slevin secured 17 (Nos. 35550 to 35566) at the isthmus of the island, September 29 and 30, 1912. 138 CALIFORNIA ACADEMY OF SCIENCES |Proc. 47H Ser. 3. Uta stansburiana Baird & Girard. One hundred and sixty-six specimens are before us. Eighty- four of these (Nos. 26812 to 26895) are from the vicinity of Avalon, July 23 to August 26, 1910, while 82 (Nos. 35468 to 35549) were secured near Johnson’s Landing, at the north end of the island, September 29 and 30, 1912. Femoral pores in 34 specimens vary from 12 to 16; being 12 ten times, 13 eighteen times, 14 nineteen times, 15 eighteen times, and 16 three times. 4. Xantusia riversiana Cope. Although Mr. Rivers stated that he had received this species from Catalina Island it is very doubtful if it really occurs there. Extended search by Mr. Carlson revealed no specimens, nor was Mr. Slevin more successful in finding it on this island, and no other collector has secured it there. 5. Gerrhonotus scincicauda ignavus Van Denburgh. A single specimen (No. 26896) was collected at Avalon, August 13, 1910. There are 14 longitudinal rows of dorsal scales, and the dark lines on the belly run along the middles of the scales. Owing to the fact that this specimen is quite young, the temporals are not keeled, but the caudal keeling is typical of this subspecies. 6. Eumeces skiltonianus (Baird & Girard). A single young individual (C. A. S. No. 26897) taken by Mr. Carlson at Avalon, August 1, 1910, establishes the first record of this species on Catalina Island. 7. Pituophis catenifer (Blainville). Mr. Charles L. Camp has informed us that he found a good- sized gopher snake at the isthmus of the island, July 3, 1910, but that it escaped. We know of no specimen from Catalina in any museum. 8. Crotalus oregonus Holbrook. The presence of rattlesnakes on Catalina was first recorded by Yarrow from a specimen taken there by Mr. Schumacher in 1876. This record has remained unconfirmed. Through the kindness of Dr. Grinnell and Mr. Charles L. Camp we VoL. IV] VAN DENBURGH AND SLEVIN—ISLAND REPTILES 139 are now able to record a second specimen. This is No. 4323 in the collection of the Museum of Vertebrate Zoology, Uni- versity of California, and was found by Mr. Camp at an elevation of about 25 feet near the isthmus of the island, July 7, 1910. It isa male with scales in 23 rows, gastrosteges 169, urosteges 23, supralabials 15-15, infralabials 14-14, preoculars 2-2, and postoculars 3-3. SAN CLEMENTE ISLAND. Mr. Slevin collected on San Clemente Island three days in October, 1912. He secured only the two kinds of lizards previously known from this island. 1. Uta stansburiana Baird & Girard. Eighty-three specimens (Nos. 35710 to 35792) were se- cured. They seem not to differ from mainland lizards of this species. 2. Xantusia riversiana Cope. One hundred and twenty-two of these lizards were collected on San Clemente Island by Mr. Slevin October 15 to 17, 1912. They. were taken in the vicinity of Mosquito Harbor, and were found under stones near the beach and on the plateau several hundred feet above. There appears to be no difference between these lizards and the Xantusias of San Nicolas and Santa Barbara islands. LOS CORONADOS. Mr. R. H. Beck visited these islands in 1908, and collected several species not previously recorded. 1. Batrachoseps attenuatus (Eschscholtz). Fifty-five (Nos. 13477 to 13531) were collected on East Coronado Island, February 15, 1908, and five (Nos. 13604 to 13608) are labeled merely Coronado Islands. They seem iden- tical with specimens from the mainland. Costal grooves in 38 specimens are 18 on each side except in specimens Nos. 13509 and 13512, which have 19. 2. Autodax lugubris (Hallowell). Two specimens (Nos. 13609 and 13610) labeled Coronado Islands were collected February 22, 1908. Their costal grooves are 12 on each side. 140 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47TH SER. 3. Uta stansburiana Baird & Girard. Two specimens (13449 and 13450) were taken on East Coro- nado Island, February 15, 1908, and three others (13532 to 13534) are labeled South Coronado, April 9, 1908. Femoral pores vary from 10 to 15; being 10 once, 13 three times, 14 four times, and 15 twice. 4. Anniella pulchra Gray. This species has not been recorded from any of the islands of the Pacific Coast. We now have at hand 10 specimens from the Coronado Islands. Nos. 13579 to 13582 were collected on South Coronado, April 6-7, 1908. Nos. 13471 to 13475 were secured on East Coronado, February 15, 1908. No. 13601 is labeled merely Coronado Islands, February 22, 1908. 5. Gerrhonotus scincicauda ignavus Van Denburgh. This lizard was collected on North, South and East Coro- nado islands. From North Coronado we have four (Nos. 13444 to 13447). collected April 6-8, 1908. Twenty-four (Nos. 13535 to 13559) were collected on South Coronado, April 6-11, 1908. Eleven (Nos. 13451 to 13461) were taken on East Coronado, February 15, 1908. Five (Nos. 13590 to 13594) labeled merely Coronado Islands, were caught Febru- ary 22, 1908. All but No. 13590 have keeled temporals, and all have caudal keeling typical of G. s. ignavus. The dark ventral lines are along the middles of the scales in all 45 specimens. The longitudinal rows of dorsals are in 14% rows in two speci- mens, 14 rows in 31, 12% rows in 10, and 12 in two specimens. 6. Eumeces skiltonianus (Baird & Girard). The collection includes 35 specimens of this skink. Only one of these (No. 13448) is from North Coronado Island, April 8, 1908. It has 26 rows of scales around the body. Twenty-five (Nos. 13560 to 13575 and 13595 to 13600) are from South Coronado, April 6-7, 1908. The scales around the middle of the body in 17 specimens counted are 24 in five and 26 in twelve. Nine (Nos. 13462 to 13470) were secured on East Coronado Island, February 15, 1908. ‘The scales are in 24 rows in four and 26 in five of these specimens. The number of scales in a row along the back, from the head to a line con- Vou. IV] VAN DENBURGH AND SLEVIN—ISLAND REPTILES 141 necting the posterior surfaces of the thighs, in 34 specimens from all the islands, varies from 55 to 61; being 55 three times, 56 four times, 57 five times, 58 eleven times, 59 five times, 60 five times, and 61 once. 7. Hypsiglena ochrorhynchus Cope. A single specimen (No. 13602) collected February 22, 1908, is labeled Coronado Islands. The scales are in 21 rows, gastrosteges 178, anal divided, urosteges 44, supralabials 8-8, infralabials 10-10, preoculars 2-2, postoculars 2-2, loreal 1-1, temporals 1+2-1+-2, genials equal. 8. Pituophis catenifer (Blainville). Two specimens from South Coronado Island are at hand. No. 13588, April 6, 1908, has 31 scale rows, 231 gastro- steges, 65 urosteges, supralabials 8-8, infraliabials 12-12, pre- oculars 2-2, postoculars 3-3, loreal 1-1, anterior genials longer. No. 13589, April 11, 1908, has 35 scale rows, 229 gastro- steges, /1 urosteges, supralabials 9-9, infralabials 13-13, pre- oculars 2-2, postoculars, 3-3, loreal 1-1, temporals 3-+-3-3+3, anterior genials longer. 9. Crotalus oregonus Holbrook. We have seven rattlesnakes of this species from these islands. Nos. 13583 to 13587 were collected on South Coronado, April 6-11, 1908. No. 13476 was secured on East Coronado, Feb- ruary 15, 1908, No. 13603 is labeled merely Coronado Islands, February 22, 1908. No. 13586 contains the remains of a lizard (Eumeces) which it had eaten. Variation in scales is shown in the following table: SCALE COUNTS IN CROTALUS OREGONUS. 142 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47TH SER. SAN MARTIN ISLAND. 1. Uta martinensis Van Denburgh. Four specimens (Nos. 8673 to 8676) of this large-scaled lizard were collected on San Martin, July 11, 1905. None of these has the fifth toe reaching beyond the tip of the second, as in the original specimen. Femoral pores in No. 8674 are 13-14, and in 8676 they are 12-14. These lizards were secured on a sand beach near the north end of the island. 2. Gerrhonotus scincicauda ignavus Van Denburgh. Our collection contains the type specimen and one other (No. ’ 8677) collected July 12, 1905) Phe dorsalis are) tm 14 rows. The temporal and caudal scales, as well as those on the limbs, are strongly keeled. The dark lines on the belly run along the middles of the rows of scales. 3. Pituophis catenifer deserticola Stejneger. One specimen (No. 8678) collected on the north end of San Martin Island, July 11, 1905, is as brightly colored as speci- mens from the desert regions of California, Nevada and Arizona. ‘The scales are in 31 rows, gastrosteges 236, uros- teges 76, supralabials 8-9, infralabials 13-153. SAN GERONIMO ISLAND. We have secured two kinds of lizards from this island. Neither has been recorded previously. 1. Uta stansburiana Baird & Girard. The collection includes 37 specimens (Nos. 8679 to 8714 and 8717) collected July 13, 1905. They seem not to differ appreciably from mainland specimens of this species. The femoral pores in 34 of these lizards vary from 12 to 16; being 12 eighteen times, 13 twenty-eight times, 14 fifteen times, 15 five times, and 16 twice. 2. Anniella pulchra Gray. Two specimens (Nos. 8715-8716) of this footless lizard were secured July 13, 1905. One was found under a stone and the other was dug out of the soft earth under a bush. Vor. IV] VAN DENBURGH AND SLEVIN—ISLAND REPTILES 143 GUADALUPE ISLAND. No reptiles or amphibians have been collected on Guadalupe Island. The only information we have been able to secure as to their occurrence on this island is contained in a paper by Edward L. Greene, published in Bulletin No. 4 of the Cali- fornia Academy of Sciences, p. 220. He writes: “Of reptiles I met with only two or three small lizards. In the moist parts of the plateau are plenty of shallow and tepid pools, fed by springs, but not even a tadpole was visible; and both soldiers and seamen assured me that none of the toad or frog race were ever seen or heard on Guadalupe. Most other islands off the coast of Mexico are commonly re- ported to be alive with snakes ; but no one charges this remoter and more oceanic pile with harboring serpents of any sort; and during my seven days of incessant rambling and climbing I did not see one.”’ SAN BENITO ISLANDS. There are three islands in this group—West, Middle and East San Benito. Only one species of lizard has been taken here. It occurs on all three islands. 1. Uta stellata Van Denburgh. The type probably came from West San Benito Island. We now have 100 specimens (Nos. 8718 to 8817) collected on this island by Mr. Slevin, July 14, 1905; four (Nos. 8834 to 8837) taken on Middle San Benito, July 15, 1905; and 16 (Nos. 8818 to 8833) secured on East San Benito, July 15, 1905. Femoral pores in 50 specimens from West San Benito vary from 12 to 18; being 12 once, 13 seven times, 14 twenty- three times, 15 twenty-eight times, 16 eighteen times, 17 four times, and 18 three times. In 12 specimens from East Benito the femoral pores vary from 13 to 16; being 13 four times, 14 seven times, 15 nine times, 16 four times. In the four lizards from Middle San Benito Island the pores are 15 five times and 16 three times. This small scaled member of the Uta stansburiana group is a ground dwelling species. It was most abundant on the lower portions of the islands. 144. CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. CERROS ISLAND. Mr. Slevin spent one day on Cerros Island. Owing prob- ably to the shortness of his visit, he failed to find a number of species which have been recorded by others. On the other hand, he secured a lizard and a snake not previously taken on Cerros, so that 10 species are now known to live there. 1. Hyla regilla Baird & Girard. Mr. Slevin did not secure this tree-toad, which has been reported by Dr. Streets and Mr. Belding. 2. Crotaphytus wislizenii Baird & Girard. The Leopard Lizard is represented in our Cerros collection by two specimens (Nos. 8843 and 8844) taken by Mr. Slevin, July 18, 1905, in a dry wash in the south end of the island. No. 8843 has femoral pores 24-25, and No. 8844 has 23-22 pores. 3. Uta stansburiana Baird & Girard. Mr. Slevin secured eleven Utas which seem typical of this species. These are Nos. 8845 to 8850, 8858 to 8859, and 8861 to 8863. Femoral pores in six of these vary from 11 to 15; being 11 once, 12 once, 13 three times, 14 four times, and 15 three times. This lizard had been taken on Cerros by both Dr. Streets and Mr. Belding. 4. Sceloporus zosteromus Cope. Three specimens (Nos. 8842, 8856 and 8857) taken by Mr. Slevin, July 18, 1905, confirm Mr. Belding’s record of this lizard. Femoral pores are 16-16, 17-18, 16-16. 5. Phynosoma cerroense Stejneger. This horned toad was not found by Mr. Slevin. It is known from a single specimen taken by Mr. Belding. 6. Verticaria hyperythra beldingi (Stejneger). This lizard also was not secured here by Mr. Slevin. 7. Cnemidophorus multiscutatus Cope. Cerros is the type locality of this form. Nine whiptails (Nos. 8838 to 8841 and 8851 to 8855) were taken by Mr. Slevin. Femoral pores in eight of these vary from 18 to 22; being 18 twice, 19 three times, 20 five times, 21 five times, and 22 once. Vor. IV] VAN DENBURGH AND SLEVIN—ISLAND REPTILES 145 8. Cnemidophorus labialis Stejneger. We have no specimens of this species. 9. Siagonodon humilis (Baird & Girard). No. 8860 is a dried specimen of this worm snake which was found dead on the sand in a dry wash, July 18, 1905. 10. Crotalus exsul Garman. We have received no rattlesnakes from Cerros Island. NATIVIDAD ISLAND. We have two kinds of lizards secured by Mr. Slevin during a visit of a few hours, July 19, 1905. 1. Uta stansburiana Baird & Girard. The collection includes 46 specimens (Nos. 8887 to 8932) of this Uta. The femoral pores in 40 specimens vary from 12 to 17; being 12 once, 13 six times, 14 sixteen times, 15 thirty-one times, 16 twenty times, and 17 six times. 2. Cnemidophorus multiscutatus Cope. Twenty-three whiptails (Nos. 8864 to 8886) taken seem not to differ from those secured on Cerros Island. They were abundant about the deserted nesting burrows of sea birds. Femoral pores vary from 16 to 21; being 16 four times, 17 eight times, 18 nine times, 19 fifteen times, 20 six times, and 21 four times. MAGDALENA ISLAND. We have no additional material from this island. The following species have been recorded. 1. Dipsosaurus dorsalis Baird & Girard. 2. Crotaphytus wislizenii Baird & Girard. 3. Uta nigricauda Cope. 4. Sceloporus zosteromus Cope. 5. Verticaria hyperthra beldingi (Stejneger). 6. Cnemidophorus rubidus (Cope). SANTA MARGARITA ISLAND. We have nothing new to record regarding the reptiles of Santa Margarita. Five kinds have been reported. Callisaurus ventralis (Hallowell). Sceloporus zosteromus Cope. Cnemidophorus rubidus Cope. Bascanion laterale fuliginosum (Cope). Crotalus mitchellii Cope. nig OCI ae 146 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. SAN BENEDICTO ISLAND. Mr. Slevin spent several hours on this island, July 26, 1905, with four other members of the expedition. No reptiles were seen by any member of the party, although careful search was made. SOCORRO ISLAND. 1. Uta auriculata Cope. This Uta remains the only reptile known from Socorro Is- land, except the green turtle which breeds here in numbers. Ninety-two specimens (Nos. 8933 to 9024) collected by Mr. Slevin, July 27-28, 1905, are now before us. In life their bright blue coloration makes them conspicuous on the black lava. The femoral pores are small and difficult to count. In 20 specimens they vary in number from 10 to 13; being 10 eight times, 11 eighteen time, 12 eleven times, and 13 three times. CLARION ISLAND. We now have no specimens from this island, the great fire of 1906 having destroyed those we had. ‘The two species known from Clarion are a lizard and a snake: 1. Uta clarionensis Townsend. 2. Bascanion anthonyi Stejneger. ANGEL DE LA GUARDIA ISLAND. Three species of reptiles have been recorded from this island. 1. Callisaurus ventralis (Hallowell). Callisaurus dracontoides, TowNsEND, Proc. U. S. Nat. Mus., XIII, 1890, . 144. : Callisaurus ventralis, VAN DENBURGH, Proc. Cal. Acad. Sci., (2), V, 1895, p. 98. Townsend has recorded the presence of this lizard on Angel Island, Gulf of California. 2. Sauromalus hispidus Stejneger. Sauromalus ater, StreEts, Bull. U. S. Nat. Mus., No. 7, 1877, p. 36; TownseEnp, Proc. U. S. Nat. Mus., XIII, 1890, p. 144. Sauromalus hispidus St#ynecER, Proc. U. S. Nat. Mus., XIV, 1891, p. 409. Dr. Stejneger has described this species from four specimens collected by Dr. Streets and Mr. Townsend on Angel Island. Dr. Streets states that these lizards are abundant on the island. Vor. IV] VAN DENBURGH AND SLEVIN—ISLAND REPTILES 147 3. Crotalus mitchellii Cope. Crotalus pyrrhus Streets, Bull. U. S. Nat. Mus., No. 7, 1877, p. 39; ‘TOWNSEND, Proc. U. S. Nat. Mus., XIII, 1890, p. 144. Crotalus mitchellu, VAN DeNBuRGH, Proc. Cal. Acad. Sci., (2), V, 159. Dr. Streets was the first to report the presence of this rattle- snake on Angel Island. Mr. Townsend afterward collected one there. TIBURON ISLAND. We know of only one record of a reptile having been taken on Tiburon Island. Doubtless many species occur there. 1. Elaps euryxanthus Kennicott. Dr. Streets has reported this coral snake from this island. Gul Ss Nati Mauss) No! 7;.18775)p:) 40): SAN PEDRO MARTIR ISLAND. Two species of lizards have been described by Dr. Stejneger as peculiar to this island. 1. Uta palmeri Stejneger. Uta palmeri Steynecer, N. A. Fauna, No. 3, 1890, p. 106; Van DEN- BURGH, Proc. Cal. Acad. Sci., (2), V, 1895, p. 106. This species is allied to Uta stansburiana. 2. Cnemidophorus martyris Stejneger. Cnemidophorus martyris STEJNEGER, Proc. U. S. Nat. Mus., XIV, 1891, p. 407; Corr, Trans. Am. Philos. Soc., XVII, 1, 1892, p. 36; Van DENBURCH Meroe, | CalwNcadul Sct s(Z) Nuva peNlao: Two specimens were collected by Dr. Edward Palmer. They seem most closely allied to C. melanostethus. CARMEN ISLAND. Only one lizard has been reported from this island. 1. Uta stansburiana Baird & Girard. Uta elegans, TowNsEND, Proc. U. S. Nat. Mus., XIII, 1890, p. 144. Uta stansburiana, VAN DrnBurcH, Proc. Cal. Acad. Sci., (2), V, 1895, p. 104. Mr. Townsend collected this species on Carmen Island. SAN JOSE ISLAND. The following three kinds of lizards were collected by W. E. Bryant on San Jose Island in April and May, 1892. 148 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. 1. Uta microscutata Van Denburgh. Uta microscutata VAN DernpurcH, Proc. Cal. Acad. Sci., (2), V, 1895, p. 106. Two specimens were secured. 2. Sceloporus zosteromus Cope. Sceloporus zosteromus, VAN DENBURGH, Proc. Cal. Acad. Sci. (2), V, 1895, pp. 109, 110. Two were taken. 3. Verticaria sericea Van Denburgh. Verticaria sericea VAN DrNBURGH, Proc. Cal. Acad. Sci., (2), V 1395S se peloe: This species is known only from the type specimen. ’ ESPIRITU SANTO ISLAND. Two kinds of lizards are known to occur here, and a sea snake has been taken near this island. 1. Sauromalus sp? Sauromalus ater, BELDING, West Am. Sci., III, 1887, pp. 96, 97. Sawromalus sp?, STEJNECER, Proc. U. S. Nat. Mus., XIV, 1891, p. 411. A medium-sized Sauromalus collected by Mr. Belding on this island is No. 12633 of the U. S. National Museum col- lection. Its specific identity is not definitely known. 2. Uta stansburiana Baird & Girard. Uta stansburiana, VAN DENBURGH, Proc. Cal. Acad. Sci., (2), V, 1895, p. 105. Two specimens were collected by Mr. W. E. Bryant in Aprile eg Z: 3. Hydrus platurus (Linnzus). Hydrus platurus, Mocguarp, Nouv. Arch. du Mus., (4), I, p. 331. Mocquard says: Deux spécimens ont été capturés dan le golfe de Californie, au large de |’ ile Espiritu Santo. ISABEL ISLAND. The following list is taken from Stejneger’s paper on the Tres Marias. We have no specimens from this island. 1. Ctenosaura teres (Harlan). 2. Sceloporus boulengeri Stejneger. 3. Cnemidophorus gularis mexicanus Peters. Vor. IV] VAN DENBURGH AND SLEVIN—ISLAND REPTILES 149 LAS TRES MARIAS. We have no specimens from these islands. Stejneger, in the North American Fauna, No. 14, 1899, pp. 63-71, records 16 species of land reptiles. One of these, Diplotropis diplo- tropis (Giinther), is known only from specimens labeled merely the Tres Marias. The other species have been taken on the three islands, as follows: MARIA MADRE ISLAND. Kinosternon integrum Leconte. Crocodylus americanus Laur. Phyllodactylus tuberculosus Wiegmann. Anolis nebulosus Wiegmann. Ctenosaura teres (Harlan). Uta lateralis Boulenger. Cnemidophorus mariarum Gunther. Boa imperator Daudin. Oxybelis acuminatus (Wied). 10. Drymobius boddaerti (Seetzen). 11. Bascanion lineatum Bocourt. 12. Drymarchon corais melanurus (Dum. & Bibron). 13. Lampropeltis micropholis oligozona (Bocourt). 14. Agkistrodon bilineatus (Gunther). SOO Sie Oe Le se MARIA CLEOFA ISLAND. Phyllodactylus tuberculosus Wiegmann. Anolis nebulosus Wiegmann. Ctenosaura teres (Harlan). Cnemidophorus mariarum Ginther. Shes oO eee MARIA MAGDALENA ISLAND. Crocodylus americanus Laur. Anolis nebulosus Wiegmann. Cnemidophorus mariarum Gunther. Drymobius boddaerti (Seetzen). Crotalus sp? CE Aaa 150 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. CLIPPERTON ISLAND. Clipperton Island is an atoll about three miles long, at one end of which may be seen a large black rock known as Clip- perton Rock. The following species seems to be the only land reptile known from Clipperton Island. 1. Emoia arundelii (Garman). Lygosoma arundelii GARMAN, Proc. N. Eng. Zool. Club, I, 1899, p. 61; HEttEr, Proc. Wash. Acad. Sci., Vol. V, 1903, p. 97. Sixty-five specimens (Nos. 9025-9089) were collected on Clipperton Rock, August 10, 1905. These lizards appear to be more abundant on Clipperton Rock than elsewhere on the island. The following color description was taken from a liv- ing specimen, now number 9054, of the Academy collection: Back very dark brown with a fairly distinct grayish stripe running from tip of snout to base of tail, gular region a little darker than belly, which is dull slate; under surface of hind legs yellowish. We have not compared these lizards with FE. cyanura. The scales around the middle of the body were counted in 38 specimens and found to be in 28 rows in all. The scales in a row down the middle of the back from the base of the head to a line joining the posterior surface of the thighs vary from 51 to 56; being 51 twice, 52 six times, 53 ten times, 54 eight times, 55 eight times, and 56 four times. COCOS ISLAND. Two species of lizards from this island have been described. 1. Sphzrodactylus pacificus Stejneger. Spherodactylus pacificus STEJNECER, Proc. Biol. Sci. Wash., Vol. OVE MOOS ps3: This species was described by Dr. Stejneger from five speci- mens collected in 1902 by Prof. Biolley, naturalist of the Museo Nacional, San José, Costa Rica. Although a careful search was made during a week’s stay, September 5-12, 1905, by the Academy’s Galapagos expedition, no specimens of this gecko were obtained. Vo. IV] VAN DENBURGH AND SLEVIN—ISLAND REPTILES 151 2. Anolis townsendi Stejneger. Anolis townsendi StKjNEcER, Bull. Mus. Comp. Zool., Vol. XXXVI, 1900, p. 163; HELLER, Proc. Wash. Acad. Sci., Vol. V, 1903, p. 95. One hundred and sixty specimens (Nos. 9090-9249) were collected in the vicinity of Wafer and Chatham bays, Sep- tember 5-12, 1905. These lizards were abundant on the vines and trees along the water courses. When approached they would jump several inches from leaf to leaf, and when alight- ing would always turn so as to face the ground. The males at this season were seen displaying the gular pouch. ee PROCEEDINGS. = : aero a: i 2 ‘ ae Z Fourth Series - VOLUME I. Expedition of the California Academy of Sciences to the - Galapagos Islands, 1905-1906. ‘Pages 1-6. I. Preliminary Description of Four New Races of Gigantic Land Tortoises from the Galapagos Islands. By John De oe Van. Denbursh’ 4 (ssted “December 20, 1007.) arse ne oa, Sond) Pages 7-288. II. A Botanical Survey of-the Galapagos Islands. . By Alban Stewart. Plates 1-x1x. (Issued January 20, 1911)... 1.75 ‘Pages 289-322. III. The Butterflies and Hawk-Moths of the Galapagos Islands. By Francis X. Williams. Plates xx-xx1. mbexued Orchober 75 TOLT) ot Scoot: uk a ta a ee Se 50 Pages 323-374. IV. The Snakes of the Galapagos Islands. By John Van Denburgh. Plates xx1I-xxx. (Issued January 17, 1912) ~ .50 Pages 375-404. Ve Notes on the Botany of Cocos Island. By _- Alban Stewart. Plates xxxt-xxxiv. (Issued January 19, 1912) 35 Pages 405-480. VI. The Geckos of the Galapagos Archipelago. - ‘ - By John Van Denburgh. (Issued April 16, 19.12) cescs0cccccceeee-sone-- F385 Pages. 431-446. VII. Notes on the Lichens of the Galapagos. Islands. By Alban Stewart. ~CUssued December 17, 1912) 22.2.0. 25 : VOLUME Il, Parr I _ Expedition of the California Academy of Sciences to the Galapagos Islands, 1905-1906. _ Pages 1-132. VIII. The Birds of the Galapagos Teds with Observations on- the Birds of Cocos _and Clipperton Islands _ (Columbiformes to Pelecaniformes). By Edward Winslow — ; Gifford. Plates r-vu. (lsswed August 11; 1913) cece coccepeeeeeess 1.00 — ~Pages 133-202.. IX, 'The Galapagoan Lizards of the Genus . Tropidurus; with notes on the Iguanas of the Genera Conolophus and Amblyrhyncus. By John Van Denburgh and Joseph R. Slevin. Plates vim-x1. (Issued September 19, r913).. — 50 _ Pages 203-374. X. The Gigantic Land Tortoises of the Galapagos - Archipelago. By John Van Denburgh. _ Plates ~ X1I-Cxx1v. issued eS 30, ECD. eevee GIO SI rest aon ee ae fe esate: 2.00 “VOLUME TEL oe 1-40. A Further Stratigraphic Study in the Mount Diablo Range of California. By Frank M. Anderson. Plate 1. (Jssucd October 31, Bo (LD Wome et IGM ee Seiten ESI SAN al ae arpante bored Ate MRLEIRO vena _Pages 41-48. Description of a New Species of Sea Snake from the Philippine Islands, with a Note on the Palatine Teeth in the Bee By John Van Denburgh and Joseph C. Thomp- ‘ (fssaed— December 230, 1008.) Scere eee Petpet cate 25 a e 56. New and Previously Unrecorded Species of Reptiles and Amphibians from the Island of Formosa, By John Van |. Denburgh. (Issued December 20, 1009) -:eoccice-ssticcsteecctoscseencyseteesete gy ene PROCEEDINGS _ Uae We ae -F ourth Se eries i VOLUME Tecoma le Cae Pape. 57. 72. Water Birds of the Vicinity of Point Pinos, California. By Rollo Howard Beck. (Issued September Le 1910)... be en Se Pages 73-146. The Neocene Deposits of Kern’ ‘River, Cittisoua: and the Temblor Basin. By Frank Anderson. Plates II-XIII. . Clisswed NWaverlber, 0; HOWL) 2 seer 2 Nooo aks See eee Ses ene Pages 147-154. Notes on a Collection Ge Reptiles from mshashiets California and Arizona. By, John” Van Denburgh. (Issued Fanmary 17, IGT2) - crovsieccceesese vee Mee ities Sar Sa ae SAGE SAA BS Si fe Pages 155-160. Notes on Some. Reptiles and Amphibians from Oregon, Idaho and Utah. By John vee Denburgh. Ussued TCR WUrey ERE TOT 20) eee aa ga Aer Lee ee Pages 161-182. Geologic Rates of Miocene Invertebrate Foe te of | California. By James Perrin Smith, _(Ussued April Fi Tor). se Pages 183-186. Description of-a New Genus and Species of Sle mander from Japan: By Surgeon Foe bopper U. 8. Tee Plate xiv. Cisswed May ee 1G re eS oon Ne oe ee ee Pages 187-258. Concerning Certain Species of Reptiles and Am: us phibians from China, Japan, the Loo Choo Islands, and Formosa: 5 By John Van Denburgh. (Issued December 16, 1912) ..------- i ss aw Pages 259-264. Notes on Ascaphus, the Discoglossoid Toad of — North America. By John Van Denburgh. -Cssued ae ke Fy aie 1912) Mea Sen ANA ngage Se aOR, FOE ean Oa ee eee sere vats aa Pages 265-390.. A Di ainiional List of the Nawal: of Calica. ie By Joseph. Grinnell. Plates xv-xvi. (Issued August 28.1013) 2. Pages 391-454. A List of the Amphibians and Reptiles of Arizona, -. with Notes on the Species in the Collection of the Academy. a nS By John Van Denburgh and Joseph R. Slevin. ‘Plates - SG a xxvir (CIssi sed November 5, TOTG) Se eee LE ae SR ne SEN | VOLUME 1 IV | Pages 1-13. I. Report of- ie President of the Academy for the . ~Year 1913. ees II. George Davidson.. (Issued April 8, ne nea ae Pages 15-112. III. Neocene Record in the Temblor Basin, Califor.” _ ma, and Neocene Deposits: of the San Juan District, San Luis Obispo County. By F. M. Anderson and Bruce Martin. Plates 1-10. (Issued. December 30, 1974)... poe rau een mney MI copies Pages 113-128... IV. The Fauna of the Sipbonalia. sutterensis. zone in the Roseburg Quadrangle, Oregon. By Roy a Dickerson. , ‘Plates 11-12. Gssued December. 30, 101p) ye eae Pages’ 129-152. V.. Reptiles and Amphibians of the Islands of the West Coast of, North America. By John Van Denburgh ¢ and Joseph R. Slevin. | (Issued December 20; TOU eee Pages 153-160. VI. The Pocket Gopher of the Boreal Zone ¢ on San~ Jacinto Peak. By J. Grinnell oe H.-S. Swarth. (ssued December 30; TODA, Jee ACCS a RSS EEG Oe at ome acces Net eee tion of April, 1906. OS: The Academy cannot supply any of its sbeeaNiane issued Gene the : i year 1907, its entire reserve stock Dayige been destroyed in’ the conflagra- Salis tah | PROCEEDINGS _ OF THE = j "CALIFORNIA ACADEMY OF SCIENCES ‘Fourra Sms r AM, 153-160. ee ‘Decemper 30, 1914 : : ‘The Pocket Gopher of the Boreal Zone J. Grinnett and H. S. Swartn ~ eens ae wee ED BY THE A‘ PROCEEDINGS OF THE CALIFORNIA ACADEMY OF SCIENCES FouRTH SERIES Vor lV. pp) 153-160: DECEMBER 30, 1914 VI The Pocket Gopher of the Boreal Zone on San Jacinto Peak J. GRINNELL and H. S. SWARTH.* In our report upon the birds and mammals of the San Jacinto area of southern California (Univ. Calif. Publ. Zool., Vol. 10, 1913, pp. 354-355) the twelve specimens of pocket gophers at that time available from the Boreal zone on San Jacinto Peak were referred to Thomomys altivallis Rhoads. That series contained not one adult male, and the possibility was suggested that, upon proper comparisons, differences would be found to exist whereby the species of San Jacinto Peak could be distinguished from that of the San Bernardino Mountains (altivallis). It will be recalled that the San Jacinto and San Bernardino mountain masses are separated only by the narrow, though deep, San Gorgonio Pass. The latter is cut to such a depth as to be traversed by a tongue of the Lower Sonoran zone, yet so steep are the confining walls that the nearest limits of the boreal areas of the separated mountain masses are only about seventeen miles apart. In order to clear up the relationships of the San Jacinto gopher, opportunity was taken by the junior author, in Sep- tember, 1914, to revisit San Jacinto Peak, with the result that seven more specimens were obtained, four of which are adult males. With this additional material we now find good grounds for nomenclatural separation of the San Jacinto and San Bernardino mountain gophers, and also for further dis- cussion of relationships. *Contributed from the Museum of Vertebrate Zoology of the Uni- versity of California. December 30, 1914 154 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47H Ser. Thomomys jacinteus, new species. San Jacinto Gopher Type.—Male, adult; No. 21235, Mus. Vert. Zool.; Round Valley, 9000 feet altitude, San Jacinto Mountains, Riverside County, California; September 15, 1914; collected by H. S. Swarth; orig. No. 10012. Diagnosis—A Thomomys of the alpinus group of species. Size medium; coloration dark; skull long and narrow, but faintly ridged, and with relatively straight top in lateral profile. Material—Nineteen skins-with-skulls from San Jacinto Peak: Nine (Nos. 21229-21235, 1761, 1762) from Round Valley, 9000 feet altitude; ten (Nos. 2188-2197) from Tah- quitz Valley, 8000 feet altitude. Of these, nine are obviously young ; seven are males, twelve are females. Comparisons.—As compared with topotypes of Thomomys altivallis Rhoads, its nearest relative geographically, the new species is decidedly smaller in general size (see accompanying tables of measurements), the tone of coloration is slightly browner, there is more or less white about the face, the whole skull is much narrower (except for interorbital constriction), there is less of angulation and ridging, the nasals are shorter, and the dorsal outline is more nearly straight in lateral profile. From Thomomys neglectus Bailey, from the San Gabriel Mountains, as originally described (Proc. Biol. Soc. Wash., Vol. 27, 1914, p. 117), jacinteus evidently differs notably in much less blackish coloration, in presence of more or less white about the face, and in less elongated and straight-topped skull. From topotypes of Thomomys alpinus Merriam, from the Mount Whitney region, jacinteus differs in decidedly browner and darker, less grayish, coloration, in much less squarely spreading zygomatic arches, in narrower braincase, and in shorter and posteriorly less attenuated nasals. From the species of gopher on the immediately adjacent lower slopes of San Jacinto Peak (T. nigricans Rhoads, of Upper Sonoran and low Transition), jacinteus differs in decidedly larger general size and notably larger ears and front feet, in Vor. IV] GRINNELL AND SWARTH—SAN JACINTO GOPHERS 155 much less reddish-brown tone of coloration, in more or less white marking about the face, in heavier dentition, in larger and especially more elongated auditory bullz, in wider inter- orbital constriction, in less widely spreading zygomatic arches, and in more nearly straight dorsal outline of skull in lateral profile. Taking all characters into consideration, there appear to be more in common between jacinieus and alpinus than between jacinteus and altwwallis. Out of the entire series of jacinteus, both adults and young, eleven have much white on chin and lining of cheek-pouches, as in alpinus; the rest all show white in lining of cheek-pouches, at least. Altivallis has a blackish brown face, rarely showing white, even within the cheek- pouches. Relationships and Ecology.—VYhe habitats of the several species of Thomomys occurring in the San Jacinto Mountains seem to be constituted mainly by the several valleys compris- ing areas of varying size throughout the range. Thomas (or Hemet), Strawberry, Tahquitz, and Round valleys are the more important of the stretches of comparatively open and level country of the higher parts of the mountains; and while gophers also occur in limited numbers along some of the streams connecting these sections, as well as on many of the dry and rather open pine-covered ridges, still the meadow- lands in each of these valleys may be considered as the cen- ters of abundance and radial dispersal of the gophers of these mountains. The densely brush-covered slopes surrounding the lower valleys offer poor inducements to the species, and the animals are seldom found in such places. The three higher valleys of San Jacinto Peak, Strawberry Valley at 6000 feet, Tahquitz Valley at 8000 feet, and Round Valley at 9000 feet, form a series of terraces on the sides of the mountain. In these mountain valleys the soil is deep and rich, in many places supporting a dense growth of grasses, and sometimes so saturated with water as to form acres of wet bog, altogether making most favorable surroundings for gophers. In striking contrast, the valleys’ edges are sharply defined by steep, rocky slopes, these in the higher portions of the range frequently forming series of bare cliffs, in the lower parts steep, gravelly hillsides, densely covered with chaparral. 156 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4rH Ser. Many portions of these breaks in the topography are suffi- ciently marked to suggest their actual service as physical bar- riers to the dispersal of animals having the sedentary habits of gophers. Especially is this the case between Strawberry and Tahquitz valleys, where lies the dividing line between nigri- cans and jacinteus. It will be noted that Tahquitz and Round valleys, as well as the country lying directly between, the en- tire habitat of jacinteus in fact, is on the eastern slope of San Jacinto Peak, with all drainage toward the desert. Strawberry Valley, together with the rest of the habitat of nigricans in these mountains, is west of the divide. There are no streams connecting the higher valleys with Strawberry Valley and the slopes to the westward, streams which with their narrow mar- gins of favorable surroundings would offer means of dispersal for these animals. Also the slopes intervening are so steep and rocky as apparently to preclude the possibility of uninter- rupted distribution without some such passage ways (see Univ. Calif. Publ. Zool., Vol. 10, plate 8, fig. 1). This latter condition also prevails on the eastern side of the mountain, where the series of tremendous, rocky precipices descending abruptly to the desert forms an effective barrier, in all probability extending from the habitat of the boreal jacin- teus to that of the Lower Sonoran perpallidus of the floor of the desert below. So altogether it seems probable that Thom- omys jacinteus is absolutely separated from those forms geo- graphically nearest to it by the physical conditions surround- ing its habitat. Between Tahquitz and Round valleys there is no abrupt break. Although at the eastern edge of Round Valley there is nearly as steep and rocky a cliff as between Tahquitz and Strawberry valleys, the approach from Tahquitz Valley to Hidden Lake, and thence to Round Valley, is gradual, and gopher sign was seen continuously over the whole distance. In accounting for the occurrence of nigricans in Strawberry Valley, in common with the lower Thomas Valley and the country to the southward, there is no difficulty, for while Strawberry Valley occupies a sharply defined terrace, with steep slopes below, the connecting streams with their adjacent congenial margins are probably sufficient to explain the gen- eral dispersal of this species of gopher. Vor. IV] GRINNELL AND SWARTH—SAN JACINTO GOPHERS 157 As the structural peculiarities of jacinteus point to close affinities with other boreal species from distant mountains, rather than with the geographically nearer low-zone species of the same mountain mass, there is, of course, no need for in- voking a theory of isolation from nigricans to account for the occurrence of the former on San Jacinto Peak. It is, how- ever, of decided interest to note the probable existence of asso- ciational barriers to the dispersal of an animal with the habits of the gopher, along the exact line where division between jacinteus and nigricans appears to be. While these barriers may have had nothing to do with the origin of either species, they may well be the sole prevention of the wider dispersal of either one of them, which, if it had been freely possible, might have resulted in competitive displacement of the other. The summer of 1914 had been an unusually dry one in the San Jacinto Mountains, where this season of the year is gen- erally accompanied by frequent thunder showers; and in the _ lower parts of the range the dryness had the effect of entirely stopping the gophers from any active digging. In Strawberry Valley, during two weeks, no freshly thrown-out earth was seen, though Thomomys nigricans is an abundant inhabitant of the valley, and old mounds could be observed everywhere. It was evident, however, that the cessation of digging activities by the animals was by no means an indication that they were in a dormant condition similar to hibernation. A house cat be- longing to an acquaintance in the camp caught gophers fre- quently, sometimes two in a night. Trapping here was not promising, however, for there was no way of telling which entrances were in use; so it was a re- lief to find that conditions were somewhat different in the higher valleys where jacinteus occurs. The several large mead- ows occupying the centers of Tahquitz and Round valleys are so saturated with water that even in a dry summer parts of them remain boggy. About these wet meadows the gophers were most abundant. No trapping was done in Tahquitz Valley during the visit of September, 1914, and but a cursory investigation of conditions was made; but several fresh mounds were noted near the edges of the meadow and on the adjacent dry ridges. 158 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. In Round Valley, September 13, 14 and 15, gophers were found to be working actively, though in a rather limited area. The meadow here is about two hundred yards across, and about a quarter of a mile in length, and the gophers occupied a narrow belt surrounding this area. They worked down to- ward the center as far as the water permitted, but not far into the dry woods of the higher surrounding ridges. Fresh mounds were also noted along the margins of the stream flow- ing out of the valley, at various points along this and other small streams between Round Valley and Hidden Lake, and between Hidden Lake and Tahquitz Valley. These fresh work- ings, however, were always near water, where there was a lit- tle green growth. No gopher sign was noted on the steep slopes between Round Valley and the summit of San Jacinto Peak. Here, as elsewhere, it seemed evident that such ‘stony ground is impassable to the animals. The burrows in Round Valley were of noticeably small size, a condition possibly produced by the dryness and consequent hardness of the ground. The occupied holes were all in grassy areas, and the green grass seemed to be the principal food plant sought. Cut grass was found in several of the holes. Of the seven animals taken at this point, four were caught in the mid- dle of the day. The other three may also have been captured after daylight, as the traps were not inspected until some time after dawn. Evidently they were working actively during the day. Vor. IV] GRINNELL AND SWARTH—SAN JACINTO GOPHERS 159 MEASUREMENTS IN MILLIMETERS OF NINE ADULTS OF THOMOMYS ALTIVALLIS oa bp 5 < a R iD aS a 3 ce! h a 2 cs} a q f bo 2 = eé By ES 26 ws A Se Sica hla tena ie ie Z a = ue) dents iS) 2 $ to 5 a zS) a Bs) m) i 3 2a 5 = a a Ss fe Os Nv = Ne 3 4546 é 267 85 36 48.6 30.2 24:8 \\ 60 V7.5 4543 } 256 80 36 48.2 S07) ZO 6.3 16.8 4601 || ¢ 265 83 36 47.8 31.6 D2, 5.9 17.0 4599 3 249 82 34 47.2 28.4 22.8 6.8 WA 4592 Q 232 75 31 | 42.7 DoT ALS 6.6 15.7 4568 fe) Ais) 73 Sil 40.8 25u) 20.6 7.0 14. 4587 || @ 723; 63 30 41.1 25.9 20.6 6.9 14.1 4554 fe) 203 65 Si I SSS 24.9 20.0 7.0 12.6 4593 2 219 62 B2 "Ske! 22.4 19.7 6.8 13.0 MEASUREMENTS IN MILLIMETERS OF NINE ADULTS OF THOMOMYS JACINTEUS “aa 2 a tO c L 3 R aT iS) 3 a SU auuineaty Mise i SU Seve es 6 g = Bias Be 3 as e Z = g f fa 5 = ae a 3 3 = og 25 3 £ es to A 2 oe as Q a0 a 2 S 5 a = G ts es a = 28 4 21235 3} 240 82 32 43.5 25.0 20.3 6.1 15.0 21230 3 231 76 30 41.0 24.9 19.3 6.4 14.0 21229 é 234 80 31 39.1 24.8 19.7 6.5 14.4 21232 3 218 75 28 36.3 21.4 18.6 5.8 11.1 21231 2 219 nd: 28 38.3 22.9 18.9 6.2 12.8 2193 Q 230 80 30 39.6 22.6 18.7 6.5 127, 2188 Q 220 71 30 38.6 22.5 || 18.4 6.5 ege2 2190 Q 210 65 29 38.6 PENS) 18.4 GiOy ian 1762 || @ 209 69 29 38. PALTZ WAT WA aes SES (1) Measured over-all from anterior tips of nasals to most posterior points on occipital end of cranium, which are usually the condyles. (2) Greatest breadth behind zygomatic arches; sometimes pertains to auditory tubes, sometimes the lateral protuberances of mastoids; often the parallel dividers touch both. a —— — —— ———— SSeS SS ———_——— INDEX TO VOLUME IV, FOURTH SERIES. New names in heavy-faced type; Synonyms in italics. Academy, Schooner, 9 acuminatus, Oxybelis, 133, 149 acutilineatus, Phacoides, 42 Admete, 88 clatskaniénsis, 88 zqualis, Psammobia, 115 zquilateralis, Venus, 115 Agasoma, 73 acuminatum, 73 barkerianum, 42 columbianum, 73 oregonense, 74 sanctacruzanum, 42 _ Sinuatum, 42 yaquinanum, Agassiz, Dr. Louis, 12 Agkistrodon bilineatus, 133, 149 albaria, Mactra, 42 alta, Metis, 42 alternata, Cerithiopsis, 115 altivallis, Thomomys, 153, 154, 159 alveata, Amauropsis, 115, 116 Amauropsis alveata, 115, 116 andersoni, 115, 120 umpquaénsis, 115, 120 Amblyrhyncus, 8 americanus, Crocodylus, 133, 149 Amphissa, 72 posunculensis, Ancilla (Oliverato) 116 Anderson, F. M., 6 Neocene Record in the Tem- blor Basin, California, and Neocene Deposits of the San Juan District, San Luis Obispo County, 15-112 Anderson, Robert, 21 andersoni, Amauropsis, 115, 120 andersoni, Pecten, 40, 42 Anniella pulchra, 132, 140, 142 Anolis nebulosus, 132, 149 townsendi, 132, 151 anthonyi, Bascanion, 133, 146 antiselli, Astrodapsis, 47 antiselli, Drillia, 43, 95 Nassa, 43, 76 Niso (2), 43, 65 Area osmonti, 41 -Argobuccinum, 71 dilleri, 71 Arnold, Ralph, 21, arnoldi, Cerithium, arnoldi, Nassa, 40, 75 42, 72 californica, 11 30, 35 43, 71 43 [161] arundelii, Emoia, 133, 150 Lygosoma, 150 Astrodapsis, 52 antiselli, 47 merriami, 40, 41 heltoides, 52 tumidus, 47 whitneyi, 47 Astyris pedroana, 42 ater, Sauromalus, 146 attenuatus, Batrachoseps, 132, 137, 139 auriculata, Uta, 132, 146 Autodax lugubris, 132, 139 lugubris farallonensis, 134 Bache, Alexander Dallas, 10 Barbatia morsei, 115 barkerianum, Agasoma, 42 Basecanion anthonyi, 133, 146 laterale fuliginosum, 133, 145 lineatum, 133, 149 Bathytoma condonana, 89 keepi, 42 piercei, 42 Batrachoseps attenuatus, 132, 137, 139 pacificus, 132, 134, 135 becki, Sceloporus, 132, 134 Sceloporus biseratus, 132, 135, 136 beldingi, Verticaria hyperythra, 144, 145 bilineatus, Agkistrodon, 133, 149 biplicata, Cuma, 43 biseratus becki, Sceloporus, 132, 135, 136 : blakei, Nassa, 48, 76 Thais, 82 Boa imperator, 133, 149 boddzrti, Drymobius, 133, 149 Bolton, A. L., 6 Botany, Department of, 5 Botanical Club, 5 boulengeri, Sceloporus, 132, 148 branneri, Glycymeris, 41 Pecten, 42 Brereton, R. M., 1 breweri, Cardium, 115 Brown, Herbert, 1 Bulla, 95 cantuaénsis, 95 Buwalda, John P., 23 buwaldana, Diplodonta, 41 buwaldana, Drillia, 43, 92 132, 132, 162 CALIFORNIA ACADEMY OF SCIENCES exruleus, Gerrhonotus, 132, 134 ecalearea, Macoma, 41 californica, Ancilla (Oliverato), 115, 116 Oliva, 40, 43 californica, Eulimella, 43, 67 Melongena, 80 Callisaurus dracontoides, 146 ventralis, 132, 145, 146 Calliostoma, 64 pacificum, 64 callosa, Neverita, 43 Calyptrea excentrica, 115 canalifera, Rimella, 115, 116 Cancellaria, 84 condoni, 42, 86 dalliana, 42, 86 joaquinensis, 42 lickana, 84 nevadensis, 42, 85 pacifica, 43 posunculensis, 43, 86 rotunda, 86 sanjosei, 43, 87 simplex, 43 cantuaénsis, Bulla, 95 carbonicola, Potamides, 115 Cardium, 57 breweri, 115 marysvillensis, 115, 116 quadrigenarium, 41 vaquerosense, 40, 41 weaveril, 57 species, 41 Caricella stormsiana, 115, 116 carlsoni, Turris, 88 Carpenter, A. G., 23 carpenteri, Lacuna, 43, 69 carrisaénsis, Trophon, 47 carrisaénsis, Turritella, 47, 70 Cassidaria tuberculata, 115 ceatenifer, Pituophis, 133, 136, 138, 141 deserticola, Pituophis, 133, 142 catilliformis, Mactra, 42 -Cerithiopsis alternata, 115 oregonensis, 121 Cerithium, 71 arnoldi, 43, 71 cerroense, Phrynosoma, 132, 144 Chione, 58 conradiana, 41 latilaminosa, 41 (Lirophora) latilaminosa, 59 margaritana, 59 mathewsonli, 41 panzana, 41, 58 temblorensis, 40, 41 species, 47 [Proc. 4TH SER. Christy, Samuel B., 13 Christy, Samuel B. (with George W. Dickie and Ralph MHarri- son), George Davidson, 10-13 Chrysodomus, 78 Eernensis, 43, 78 martini, 115, 116 clarionensis, Uta, 132, 146 clarki, Siphonalia, 121 clatskaniensis, Admete, 88 Clavella, species, 115 Cnemidophorus gularis mexicanus, 133, 148 labialis, 133, 145 mariarum, 133, 149 martyris, 133, 147 melanostethus, 147 multiscutatus, 133, 144, 145 rubidus, 133, 145 columbiana, Drillia, 94 columbianum, Agasoma, 73 condonana, Bathytoma, 89 condoni, Cancellaria, 42, 86 Conolophus, 8 conradiana, Chione, 41 Macrocallista, 115 Conus hayesi, 30, 40, 43 owenianus, 40, 43 cooperi, Ficopsis, 115 Terebra, 44 cooperi, Pyramidella, 43, 66 corais melanurus, Drymarchon, 133, 149 Corbicula dumblei, 41 Corbula parilis, 115 hornii, 115 costata, Cylichna, 115 costellata, Trochita, 44 Crassatellites semidentata, 115 washingtoniana, 115 crassicardo, Pecten, 47 Crepidula praerupta, 43 princeps, 43 eretacea, Lucina (?), 115 Crocodylus americanus, 133, 149 - Crotalus exsul, 133, 145 mitchellii, 133, 145, 147 oregonus, 133, 138, 141 species, 133, 149 Crotalus pyrrhus, 147 Crotaphytus wislizenii, 132, 144, 145 Ctenosaura teres, 132, 148, 149 cubensis, Lymnza, 47 Cuma biplicata, 43 Cylichna costata, 115 Cytherea diabloensis, 41 dalli, Fossarus, 43, 70 Molopophorus, 78 dalliana, Cancellaria, 42, 86 Davidson, George, 10 Vor. IV] davisiana, Surcula, 115, 116 De Long, Capt., 12 Dentalium petricolum, 43 species, 115 deserticola, Pituophis catenifer, 133, 142 diabloensis, Cytherea, 41 Dickie, George W. (with Ralph Har- rison and Samuel B. Christy), George Davidson, 10-13 Dickerson, Roy EH. The Fauna of the Siphonalia sut- terensis Zone in the Roseburg Quad- rangle, Oregon, 113-128 dilleri Argobuccinum, 71 Eulimella, 67 Pseudoliva, 115, 122 Diplodonta, 56 buwaldana, 41, 56 parilis, 41 diplotropis, Diplotropis, 133, 149 Diplotropis diplotropis, 133, 149 Dipsosaurus dorsalis, 132, 145 Donax (?) triangulata, 41, 63 dorsalis, Dipsosaurus, 132, 145 Dosinia mathewsonii, 41 ponderosa, 41 whitneyi, 30 species, 115 dracontoides, Callisaurus, 146 Drillia, 90 antiselli, 43, 93 buwaldana, 43, 92 columbiana, 94 howei, 43 kernensis, 43 ochsneri, 43, 90 ocoyana, 43, 93 temblorensis, 43, 91 wilsoni, 43, 91 Drymarchon corais melanurus, 133, 149 Drymobius bodderti, 133, 149 dumblei, Corbicula, 41 Pleurotoma, 40 Eastwood, Alice, 5 Echinodermata, 41, 52 Elaps euryxanthus, 133, 147 eldridgei, Ostrea, 42 elegans, Uta, 147 Emoia arundelii, 133, 150 “empireénsis, Fusinus, 84 Entomology, Department of, 7 eocenica, Glycimeris, 115 Epitonium, 68 posoénsis, 43, 68 williamsoni, 43, 68 estrellana, Panopea, 42 estrellanus, Pecten, 47 Etchegoin Group, 47 INDEX 163 Eulimella californica, 43, 67 dilleri, 67 gabbiana, 43, 68 ochsneri, 43, 66 Eumeces skiltonianus, 133, 138, 140 euryxanthus, HElaps, 133, 147 excentrica, Calyptrea, 115 exsul, Crotalus, 133, 145 Fairbanks, H. W., 21, 35 farallonensis, Autodax lugubris, 132, 134 Fauna of the Siphonalia sutterensis Zone in the Roseburg Quadrangle, Oregon, by Roy H. Dickerson, 113- 128 Ficopsis remondii, 115 cooperi, 115 Ficus kernianus, 43 Foote, Gen. L. H., 1 Fossarus, 70 dalli, 43, 70 Fuchs, Chas., 7 fuliginosum, Bascanion laterale, 133, 145 Fusinus, 84 empireénsis, 84 futheyana, Oliva, 43 gabbi, Molopophorus, 78 gabbiana, Hulimella, 43, 68 Poromya, 42 gabbianum, Trophon, 40, 44, 81 Gastropoda, 42, 43, 44, 64 Gerrhonotus cxruleus, 132, 134 scincicauda, 132, 134, 135, 136 sincicauda ignavus, 132, 138, 140, 142 Gibbons, Dr. Henry, 13 Gifford, E. W., 7, 8 globosa, Neverita, 115, 116 Glycimeris eocenica, 115 sagitata, 115 Glycymeris branneri, 41 species, 41 gregaria, Tamiosoma, 47 Grinnell, Joseph, 8 Grinnell, J. (with H. S. Swarth) : The Pocket Gopher of the Boreal Zone on San Jacinto Peak, 153-160 Grunsky, C. H.: Report of the President of the Academy for the Year 1913, 1-9 gularis mexicanus, Cnemidophorus, 133, 148 Haehl, H. L., 30 hannibali, Natica, 115, 119 Harrison, A. S., 10 Harrison, Ralph (with George W. Dickie and Samuel B. Christy), George Davidson, 10-13 164 CALIFORNIA ACADEMY OF SCIENCES Hawes, Col. A. G., 1 “hayesi, Conus, 30, 40, 43 Herpetology, Department of, 5 heterostropha, Physa, 48 Hewston, Dr. George, 13 hispidus, Sauromalus, 132, 146 hornii, Corbula, 115 Meretrix, 115 Tritonium, 115 howei, Drillia, 43 Mangilia, 95 humilis, Siagonodon, 133, 145 Hydrus platurus, 133, 148 Hyla regilla, 132, 135, 137, 144 hyperythra beldingi, Verticaria, 133, 144, 145 Hypsiglena ochrorhynchus, 133, 141 idriensis, Ostrea, 115 ignavus, Gerrhonotus scincicauda, 132, 138, 140, 142 imperator, Boa, 133, 149 inezana, Natica, 43 Neverita, 40 Turritella, 30, 40, 44 integrum, Kinosternon, 133, 149 Invertebrate Paleontology, Depart- ment of, 6 jacinteus, Thomomys, 154, 159 joaquinensis, Cancellaria, 42 joaquinensis, Transennella, 42, 60 Johnson, H. R., 21, 35 Jones, John P., 1 juglaris, Scaphander, 43 keepi, Bathytoma, 42 kernensis, Chrysodomus, 42, 78 Drillia, 43 Mangilia, 94 kernensis, Trophon, 44 kernianus, Ficus, 43 Kinosternon integrum, 133, 149 labialis, Cnemidophorus, 133, 145 Lacuna, 69 carpenteri, 43, 69 Lampropeltis micropholis oligozona, 133, 149 laterale fuliginosum, Bascanion, 133, 145 lateralis, Uta, 132, 149 latilaminosa, Chione, 41 Chione (Lirophora), 59 Lawson, Dr. A. C., 19 Lawson, James S., 10 Leda, 53 ochsneri, 41, 53 Library, President’s Report concern- ing, 8 Lick, James, 12, 13 lickana, Cancellaria, 84 lincolnensis, Nassa, 77 Turris, 88 lineatum, Bascanion, 133, 149 Louderback, Dr. G. D., 19 Loxotrema turrita, 115 Lucina (2?) cretacea, 115 lugubris, Autodax, 132, 139 farallonensis, Autodax, 132, 134 Lygosoma arundelii, 150 Lymnea cubensis, 48 c.f. obrussa, 48 Macoma calcarea, 41 nasuta, 41, 47 ocoyana, 41 piercei, 41 Macrocallista conradiana, 115 Mactra albaria, 42 eatilliformis, 42 sectoris, 42, 63 magnolia, Pecten, 30, 42 Mammalogy, Department of, 6 Mangilia, 94 howei, 95 kernensis, 94 Mmargaritana, Chione, 59 mariarum, Cnemidophorus, 133, 149 Martin, Bruce, 6, 7 martinensis, Uta, 132, 142 martini, Chrysodomus, 115, 116 Martini, Pitaria, 115, 117 martyris, Cnemidophorus, 133, 147 marysvillensis, Cardium, 115, 116 mathewsonii, Chione, 41 Dosinia, 41 Mytilus, 42 Olivella, 115 McCreery, Andrew B., 1 melanostethus, Cnemidophorus, 147 melanurus, Drymarchon corais, 133, 149 Melongena, 80 californica, 80 Sanjuanensis, 43 Meretrix hornii, 115 ovalis, 115 Merriam, J. C., 21 merriami, Astrodapsis, 40, 41 Turritella, 115 merriami, Venericardia planicosta, 115, 116, 118 Metis alta, 42 mexicanus, Cnemidophorus gularis, 133, 148 micropholis oligozona, Lampropeltig 133, 149 microscutata, Uta, 132, 147 mitchellii, Crotalus, 133, 145, 147 Modiolus ornatus, 115 Molopophorus, 78 dalli, 73 gabbi, 78 [Proc. 4TH SER. Vou. IV] Monterey Formation, 17, 32 Monterey Shale, 44 Moore, J. P., 13 Moran, R. B., 23 morani, Semele, 42, 62 Morrice, Charles, 23 morsei, Barbatia, 115 Mount Diablo Range, 23, 35 multiscutatus, Cnemidophorus, 133, 144, 145 Mytilus mathewsonii, 42 Mytilus sp., 42 Nassa, 75 antiselli, 43, 76 arnoldi, 40, 43 blakei, 43, 76 lincolnensis, 77 ocoyana, 43, 75 nasuta, Macoma, 41, 47 Natica hannibali, 115, 119 inezana, 43 nebulosus, Anolis, 132, 149 neglectus, Thomomys, 154 nehalemensis, Thais, 83 Neocene Record in the Temblor Basin, California, and Neocene Deposits of the San Juan District, San Luis Obispo County, by Frank M. An- derson and Bruce Martin, 15-112 nevadanus, Pecten, 42 nevadensis, Cancellaria, 42, 85 Tellina, 42, 61 Neverita callosa, 43 globosa, 115, 116 inezana, 40 nuciformis, 115 secta, 115 newcombi, Yoldia, 54 nigricans, Thomomys, 154, 156, 157 nigricauda, Uta, 132, 145 Niso, 65 Niso (?) antiselli, 43, 65 norrisi, Scutella, 38, 40, 41 nuciformis, Neverita, 115 nuttalli, Saxidomus, 42 ochrorhynchus, Hypsiglena, 133, 141 Ochsner, W. H., 23 ochsneri, Drillia, 43, 90 Eulimella, 43, 66 Leda, 41, 53 ocoyana, Macoma, 41 Turritella, 40, 44 ocoyana, Drillia, 43, 93 Nassa, 43, 75 oligozona, Lampropeltis micropholis, 133, 149 Oliva californica, 40, 43 futheyana, 43 Olivella mathewsonli, 115 pedroana, 43 INDEX 165 oregonense, Agasoma, 74 oregonensis, Cerithiopsis, 121 Trophon, 80 oregonus, Crotalus, 133, 138, 141 ornatus, Modiolus, 115 osmonti, Area, 41 Ostrea eldridgei, 42 idriensis, 115 panzana, 47 titan, 47 ovalis, Meretrix, 115 owenianus, Conus, 40, 43 Oxybelis acuminatus, 183, 149 pacifica, Cancellaria, 43 pacificum, Callistoma, 64 pacificus, Batrachoseps, 132, 134, 135 Sphexrodactylus, 132, 150 palmeri, Uta, 132, 147 Panopea estrellana, 42 panzana, Chione, 41, 58 Ostrea, 47 Thais, 82 parilis, Corbula, 115 Diplodonta, 41 Paso Robles Formation, 48 peckhami, Pecten, 42 Pecten, 55 andersoni, 40, 42 branneri, 42 crassicardo, 47 estrellanus, 47 etchegoini, 55 magnolia, 30, 42 nevadanus, 42 peckhami, 42 perrini, 42 sancti-ludovici, 47, 55 sespeénsis, 40, 42 vanvlecki, 42 vaughani, 42 Pecten (Chlamys) wattsi var. etchegoint, 55 Pecten (Chlamys) wattsi var. moranti, 55 pedroana, Astyris, 42 Olivella, 43 Pelecypoda, 41, 42, 53 peltoides, Astrodapsis, 52 perrini, Pecten, 42 pertenuis, Venus, 40, 42 Phacoides sp., 47 acutilineatus, 42 richthofeni, 40, 42 sanctecrucis, 42 Phrynosoma cerroense, 132, 144 Phyllodactylus tuberculosus, 132, 149 Physa heterostropha, 48 piercei, Bathytoma, 42 Macoma, 41 Pitaria martini, 115, 117 166 CALIFORNIA ACADEMY OF SCIENCES Pituophis catenifer, 133, 136, 138, 141 catenifer deserticola, 133, 142 planicosta merriami, Venericardia, 115, 116, 118 Planorbis sp., 48 platurus, Hydrus, 133, 148 Pleurotoma dumblei, 40 Pocket (The) Gopher of the Boreal Zone on San Jacinto Peak, by J. Grinnell and H. S. Swarth, 153-160 ponderosa, Dosinia, 41 Poromya, 56 ‘ gabbiana, 42, 56 posoénsis, Epitonium, 43, 68 Siphonalia, 43, 79 posunculensis, Amphissa, 42, 72 Cancellaria, 43, 86 Potamides carbonicola, 115 prerupta, Crepidula, 43 President’s Report for 1913, 1-9 princeps, Orepidula, 43 Psammobia wqualis, 115 Pseudoliva dilleri, 115, 122 Publications of the Academy, 8 pulchra, Anniella, 132, 140, 142 Pyramidella cooperi, 43, 66 pyrrhus, Crotalus, 147 quadrigenarium, Cardium, 41. regilla, Hyla, 132, 135, 187, 144 remondii, Ficopsis, 115 Report of the President of the Acad: emy for the Year 1913, 1-9 Reptiles and Amphibians of the Isl- ands of the West-Coast of North America, by John Van Denburgh and Joseph R. Slevin, 129-152 richthofeni, Phacoides, 40, 42 Rimella canalifera, 115, 116 riversiana, Xantusia, 132, 187, 138, 139 Rockwell, John, 10 rotunda, Cancellaria, 87 Rowley, John, 6 rubidus, Cnemidophorus, 1338, 145 sagitata, Glycimeris, 115 sanctacruzanum, Agasoma, 42 sanctecrucis, Phacoides, 42 sancti-ludovici, Pecten, 47, 55 sanjosei, Cancellaria, 43, 87 San Juan District, 35 sanjuanensis, Melongena, 43 Santa Margarita Group, 45 Sauromalus ater, 146, 148 Sauromalus hispidus, 132, 146 species, 132, 148 Saxidomus nuttalli, 42 Scaphander jugularis, 43 Sceloporus becki, 132, 134 biseratus becki, 132, 135, 136 boulengeri, 132, 148 [Proc. 4TH Ser. zosteromus, 132, 144, 145, 147 Schaertzer, Henry C., 1 Schwatka, Lieutenant, 12° scincicauda, Gerrhonotus, 132, 134, 135, 136 ignavus, Gerrhonotus, 132, 138, 140, 142 scopulosus, Sigaretus, 43 Scutella norrisi, 38, 40, 41 secta, Neverita, 115 sectoris, Mactra, 42, 63 Semele morani, 42, 62 semidentata, Crassatellites, 115 sericea, Verticaria, 132, 147 sespeénsis, Pecten, 40, 42 Siagonodon humilis, 133, 145 Sigaretus scopulosus, 43 simplex, Cancellaria, 43 sinuatum, Agasoma, 42 Siphonalia, 79 clarki, 121 posoénsis, 43, 79 sutterensis, 115, 116 skiltonianus, Humeces, 133, 138, 140 Slevin, Joseph R., 5, 7, 8 Slevin, Joseph R. (with John Van Denburgh) : Reptiles and Amphibians of the Islands of the West Coast of North America, 129-152 Smith, Dr. J. P., 31 Smith, L. E., 5 Spherodactylus pacificus, 132, 150 stansburiana, Uta, 132, 136, 138, 139, 140, 142, 144, 145, 147, 148 stellata, Uta, 132, 143 stormsiana, Caricella, 115, 116 Surcula davisiana, 115, 116 sutterensis, Siphonalia, 115, 116 suturalis, Turris, 115, 116 Swarth, H. S. (with J. Grinnell): The Pocket Gopher of the Boreal Zone on San Jacinto Peak, 153-160 Tamiosoma gregaria, 47 Tellina nevadensis, 42, 61 tenuistriata, 42 wilsoni, 42, 62 temblorensis, Chione, 40, 41 temblorensis, Drillia, 43, 91 Yoldia, 42, 54 tenuistriata, Tellina, 42 Terebra cooperi, 44 teres, Ctenosaura, 132, 148, 149 Thais, 81 blakei, 82 nehalemensis, 83 panzana, 82 trophonoides, 81 vaquerosensis, 40, 44 Vor. IV] Thomomys alpinus, 154, 155 altivallis, 153, 154, 159 jacinteus, 154, 159 neglectus, 154 nigricans, 154, 156, 157 titan, Ostrea, 47 Tivela weaveri, 115, 117 townsendi, Anolis, 132, 151 Transennella, 60 joaquinensis, 42, 60 triangulata, Donax, 41, 63 Tritonium hornii, 115 Trochita costellata, 44 species, 44 ‘Trophon, 80 carrisaénsis, 47 gabbianum, 40,.44, 81 kernensis, 44 oregonensis, 80 trophonoides, Thais, 81 Tropidurus, 8 tuberculata, Cassidaria, 115 tuberculosus, Phyllodactylus, 132, 149 tumidus, Astrodapsis, 47 . Turris, 38 carlsoni, 88 lincolnensis, 88 suturalis, 115, 116 turrita, Loxotrema, 115 Turritella, 70 carrisaénsis, 47, 70 inezana, 30, 40, 44 merriami, 115 ocoyana, 40, 44 uvasana, 115, 116 variata, 44 umpquaensis, Amauropsis, 115, 120 Umpqua Formation, List of Fossils from the, 115 Uta auriculata, 132, 146 clarionensis, 132, 146 elegans, 147 lateralis, 132, 149 martinensis, 132, 142 microscutata, 132, 147 INDEX 167 nigricauda, 132, 145 palmeri, 132, 147 stansburiana, 132, 136, 138, 139, 140, 142, 144, 145, 147, 148 stellata, 132, 143 uvasana, Turvitella, 115, 116 Van Denburgh, John, 5, 8 Reptiles and Amphibians of the Islands of the West Coast of North America (Joseph R. Slevin, collab- orator), 129-152 Van Dyke, Dr. E. C., 7 vanvlecki, Pecten, 42 vaquerosense, Cardium, 40, 41 vaquerosensis, Thais, 40, 44 variata, Turritella, 44 vaughani, Pecten, 42 Venericardia planicosta merriami, 115, 116, 118 Verticaria hyperythra beldingi, 132, 144, 145 sericea, 132, 147 ventralis, Callisaurus, 132, 145, 146 Venus equilateralis, 115 pertenuis, 40, 42 washingtoniana, Crassatellites, 115 weaveri, Tivela, 115, 117 Whitney, J. D., 24 whitneyi, Astrodapsis, 47 Dosinia, 30 williamsoni, Epitonium, 43, 68 wilsoni, Drillia, 43, 91 Tellina, 42, 62 wislizenii, Crotaphytus, 132, 144, 145 Woodworth, Wm. McMichael, 1, 4 Xantusia riversiana, 132, 137, 138, 139 Yale, Charles G., 13 yaquinanum, Agasoma, 75 Yoldia, 54 newcombi, 54 temblorensis, 42, 54 zosteromus, Sceloporus, 132, 144, 145, 147 _ PROCEEDINGS Fourth Series VOLUME 1 Expedition of the California Academy of Sciences to the Galapagos Islands, 1905-1906. Pages 1-6. I. Preliminary Description of Four New Races of Gigantic Land Tortoises from the Galapagos Islands. By John Van Denbureh: Cissued December 20; 1907) 20.02. Pages 7-288. II. A Botanical Survey of the Galapagos Islands. By Alban Stewart. Plates I-xrx. (Issued January 20, 1911)... Pages 289-322. III. The Butterflies and Hawk-Moths of the .Galapagos Islands. By Francis X. Williams. Plates xx-xx1. CLSSH ed HOGPOD Cree lOW T Neha. 2S oie oN AY yee ee Pages 323-374. IV, The Snakes of the Galapagos Islands. By John Van Denburgh. Plates XxU-xxx. (Issued January 17, 1912) Pages 375-404. V. “Notes on the Botany of Cocos Island. By Alban Stewart. Plates xxx1-xxxiv. (Issued January 19, 1912) Pages 405-430. VI. The Geckos of the Galapagos Archipelago. By John Van Denburgh. (lssued April 16, 1912)... ccc Pages 431-446. VII. Notes on the Lichens of the Galapagos -- Islands.- By Alban Stewart. (Jssued December 17, 1912) -..-.....- VOLUME II, Parr I Expedition of the California Academy of Sciences. to~ the Galapagos Islands, 1905-1906. Pages 1-132. VIII. The Birds of the Galapagos Islands, with Observations on the Birds of Cocos and Clipperton Islands (Columbiformes to Pelecaniformes).. By Edward Winslow | - Gifford: Plates-i-vire Ussucd: Aueuse st, 1913). 8 ee Pages 133-202. IX. ‘The Galapagoan Lizards of the Genus Tropidurus; with notes on the Iguanas of the Genera Conolophus and Amblyrhyncus. By John Van Denburgh and Joseph R. Slevin. Plates viri-x1. (Issued September 19, 1913).. Pages 203-374. X. The Gigantic Land Tortoises of the Galapagos Archipelago. By John Van Denburgh. Plates XII-CXXIv. issued jSep tener 3On dOhay) se Ole ee oe es VOLUME III Pages 1-40. A Further Stratigraphic Study in the Mount Diablo Range of California. By Frank M. Anderson., Plate 1. CUssued CTO DEI ETD OS ay ee aN SO Six Se ae a Ne BY Pages 41-48. Description of a New Sess of Sea Snake from the ~ Philippine Islands, with a Note on the Palatine Teeth in the Proteroglypha. By John Van Denburgh and Joseph C. Thomp- | SOME. Closed Deca ey ng h) HOO \ie eset lr De A Pages 49-56. New and Previously: Unrecorded Species of Reptiles and Amphibians from the Island of Formosa. By John Van Denburgh. (Issued December 20, 1900) --.-:-------:--20---0-+ se ee soe 1.00 50 2.00 AWS - PROCEEDINGS ~ Fourth Series VOLUME IlIl—Continued ~ Pages 57-72.. Water Birds of the Vicinity of Point Pinos, California. By Rollo Howard Beck. (Issued September 17, 1910)........... Pages 73-146. ‘The Neocene Deposits of Kern River, California, and the Temblor Basin. By Frank M. Anderson. Plates 1-xai1. Cis ited NOV eCmDCTA.O GLE) a Pa, emis i nee ree ie aa Pages 147-154. Notes on a Collection of Reptiles from Sours California and Arizona. By John Van Denburgh. (Issued gl DAVIE Ane TO BY tae ORS ye TC Ane eee ee erie ages 155-160. Notes on Some. Reptiles and Amphibians from Oregon, Idaho and Utah. By John Van Denburgh. (Issued IOUT) SIF VLE ) eee Se Ne IR I Earp ee Pages 161-182. Geologic Range of Mincené Invertebrate Fossils of California. By James Perrin Smith. (Issued April 5, 1912) Pages 183- 186, Description’ of a New Genus and Species of Sala-_ mander from Japan. By Surgeon J, C. Thompson, U. S. Navy. — Plate xiv. _Cissuded. May: 3, Tor2)- 3 PRA sae tye AO Pages 187-258. Concerning Certain Species of Reptiles and Am- phibians from China, Japan, the Loo Choo Islands, and Formosa. By John Van Denburgh. (Issued December 16, 1912)... Pages 259-264. Notes on Ascaphus, the Discoglossoid Toad of North America. By John Van Denburgh. (Issued December fea eheal OD ad KOE 21 npn tee RO ites athe ap Rea ene PP MLA Ae in A SSRN cK Pages 265-390. A Distributional List of the Mammals of California. By Joseph Grinnell. Plates xv-xvi. (Issued August 28, 1913)... Pages 391-454.. A List of the Amphibians and Reptiles of Arizona, with Notes on the Species in the Collection of the Academy. ~By John Van Denburgh and Joseph R. Slevin, Plates XviI- XXVIII. (CUssued N ovember Det TBO T. Speco tens a eer pee et aan eo VOLUME IV Pages 1-13. I. Report of the President of the Academy for the Year 19i13.— II. George Davidson. (Issued April 8, 1914) vec Spas 15-112, III. Neocene Record in the Temblor Basin, Califor- nia, and Neocene Deposits of the San Juan District, San Luis Obispo County. By F. M. Anderson and Bruce Martin. Plates — “1-10. (Issued December 30, 190T4).--2e:cetcececceeteos esis Nannie a Saat Pagés 113-128. IV. ‘The Fauna of the Siphonalia sutterensis zone in the Roseburg. Quadrangle, Oregon. By Roy E. Dickerson. Plates 11-12. (Issued, December 30, I914)........ act ee ee eae Pages 129-152. V. Reptiles and Amphibians of the Islands of the West Coast of North America. By John Van Denburgh and Joseph R. Slevin. (Issued December 30, 1914)... Siar bee Pages 153-160. VI. The Pocket Gopher of the Boreal Zone on San Jacinto Peak. By J. Grinnell and. TS. Swvarth. (issued Piece wb ery BOR 10 TA ee ee RI ae ee ania no san The Academy cannot supply any of its publications issued. before, the year 1907, its entire reserve stock having been destroyed in the conflagra-_ tion of April, 1906. rs _ Tin 3 goes 0130