544 



THE FUR SEALS OF THE PRIBILOF ISLANDS. 



Commander Islands, Bering Sea.' 

 FAUNAL SUMMARY. 



Species identified. 



Gonatiia aiiioeiius Falir 



Lestiitinthis fabricii ( ?) Liclit 



Cylicluni ]>i'<i|iiu(|ua Sara 



Acolidia ]>a))illosa L 



Cailliua ])aoiti<a]5ergli 



Acantlio<l(>ris)>ilosa Mnll 



Liiiiax (A};iii)liiiiaN) liyperbortMusWest 



Vitriiia e\ilis Mor 



Hyaliiia radiatiila AM 



Coniilu.s liilvus var. Mull , 



I'atula nulcTata var. pan per (ild 



l'iil)illa decora (lid 



J^iiniiaea oval a Drap 



Liiiiuaua liiiinili.s Say 



•Siplionaria tlicisitis Cpr 



Xradiyradsia alriitic.a IMll 



Toniii'll.a inarnxirea Fabr 



'I'oni(Hlla subinarniorca Midd 



Tracliydirinon ruber L 



Sehizoplax bramltii Dall 



Leptocliitou cancillatus Sbv 



I'lacipliorella stim|>.suiii (ild 



Cryi)tochiton .stelK-ri Midd 



.'Vrinac^a p.itiiia Escli , 



Acmaca jielta Kscli 



Velut ilia cry ptospira Midil 



I'ilisciis coiiiiiiodiis Midd 



Crcpidula grandi.s Midd 



I.itorina sitkaua I'liil 



Lituriiia var. aubteiiebrosa Midd 



Litoriiia v.ar. atkaiia Dall 



Lacuna viiicta Mtg 



UalocoDi'ba retlexa Dall , 



Natica elaiisa Hrod , 



Natica riissa <ild 



Tacbyrli) iK'liiis croaiis Couth 



Tricliotropis iiisignis Midd 



Tritoniuiu orc^roncnso lledf 



Range. 



Species idcutjiied. 



Ceritliiopsisstejnegeri Dall 



Marf^arita heliciiia Fabr' , 



Mar);arita vortiiilera Dall 



M.irgarita varicoaa Migli 



Purpura lima Mart 



Tropbon tnnicatiis Strom 



Stromljolla var. stcjiu^Kcri Dall 



Tritonoi'iisiis Kroycri M(dlcr 



('brysodonius lirnlus Mart 



('brysodomus HpitziH'rgcnsis Kve... 



Vohitharpa ampnlbu'ca Midd 



Astyris rosacea (ihl 



ISucciinini tunuo (Iray 



Buccinuui var. mon^biaiunii Kisclicr 



ISiu'cinuin pcrcra.ssum Dall 



I'leurotoma (lida) violacea Migli ... 



I'lcurotouia beringi Aur 



Zirt'aa crisp.ita L 



Plioladidea jienita Coiir 



Saxicava rugosa L 



Mya truncata L 



Cuspidaria var. bcringonsis Lec.lio -. 



.Siliqua patula Dixon 



S))i.sula alasUana Dall 



Macoina middcndoriti Dall 



Tajics .Mtaiiiini'a Coiir 



Cardium groulaiiilic um L 



Cardiuni blandilm (ild 



IMsidiiim ac(|uilatcrale Hald 



Modiolaria discora (iray 



Modi(daria laevigata (var. ?) Gray . . 



ModioluH modiolus L 



Mytilusedulis L 



Pectcu alaskeiisis Dall . 



Pododc.ainus niacroscbisnia Desli . . . 



Total 74 species . 



Range. 



28 



'Modified from table given by mo in Proc. U. S. Kat. Mus. for 1886. Report on Bering Island MoUusca, pp. 217, 218, 

 October, 188(i. Cf. also these Proceedings for 1884, pp. :t40-;!49. 



'■' Since! this pa))cr was prepared a i)ublication has appeared (Prnc. Mai. Sor , of London, III, ]>. 21)5, Mar., 1899) on 

 Some Mollusca from Bering .Sea, by Mr. Kdgar A. Smith, of the lirilisli .Museum. 'I'jisn \v(!rii collected by Mr. (!. K. II. 

 BarrettHamilton of the Bering Sea ('ouimission, at tlu! Commander Islands. They comprise (1) as))eci('a of (hniiintiistrephes 

 not specifically idontiticd: (2) Anti/rit rosacea (!ould; (:i) Margarita berimji'iisix Smith; (1) il. albnlinealii .Sniilh (both 

 described under the generic- name of Valvatella): and (5) Acmcea sybarilica Dall (froni Coppc^r Island). This brings the 

 total number of species known fnmi the (Commander Islands up to 77, of which numbers 3 and 4 are known also from the 

 Aleutians, and number 5 from the Pribilof Islands, the Aleutians, and .laijan. 



FOSSIL MOLLUSKS OF ST. PAUL ISLAND. 



The only molluscau fossils known in the group come from St. Taul Island, and F 

 have added an e.\tra(;t from my geological report on the T(;rtiary coals of Alaska 

 (Report on Coal and Lignite of Alaska, 17th Ann. Rep. U. S. Geol. Survey, 188(1), which 

 summarizes all that is known of them up to the present time. 



Oh tlio eastern side of tlio point wliich forms tlie sontlu-astorn oxtronio of tlio island is ;i blurt' or 

 crag known as lUack Bluff, which, according to the observations of Wossuesseiiski in 1847-48, 

 is composed of horizontal layers of a hard claystone, with others in which lime preponderates, 

 forming a palo gray, fiue-graiucid, clayey limestone, or in which a conglomiirate of pebbles of volcanic 

 origin is bound together in a limy matrix.' Over those aro layers of black or brown volcanic breccia 

 and vesicular lava. These bluffs rise abruptly to a heiglit of 60 to 80 feet above the sea at their base. 



Growingk, Heitrag, p. 190. 



