ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA. C03 



Na. 



•".1. I^da mitnifa, Linn. One sp. livin^r*. 



.32. Yoldia laiirt'olata, J. Sby. Two sp. living*. 



3.'1. YohUa amiiydnla. Ono sp. livinjr*. 



i\A. Hamiiiea hi/datix. Two sp. livinjr. 



.'5.'), 3('>. Two species of Tectilnanchiates, not yet -workcd-out by Dr. Alcock. 



3.". Toniafitta eximia, IJaird. Abundant, livin";. 



.M8. Cyllchiia (ivas.) attoiitia. One livinp: sp. I'robably a variety of ei/ZZ/iJ/aceo. 



34*. iJcnfa/i'inn rectiii^, n. s. Very rare, dead. 



40. Acnnthoplvnrn Hcahra. One vounj; living sp. 



41. yiopnlia Grai/ii, n. s. One living sp. 



42. MojKilia Ilindsii. One living sp. 



4.{. Mopnlia si/iuatn, n. s. Two sp. livinnr. | . ,i i j . ,, 



^ ,.#';• • . rp ' ,• ■ 1 A well-marked CTOup in the eenua. 



44. Mo'HUia impurratd, n. s. 1 wo sp. living. | b r e "^ 



4-'). iHchnochitoH (Trac/n/dcrniim) tri/idim, n. s. One living sp. 



4(). Ischnochifon (Trachi/dermoH)J!ectens,n.3. One living sp. 



47. Inchnoc/iitoii ( Tracki/dfrmon) retipormuis, n. s. One living sp. 



48. Ischtiochitnn (LipidopUurns) Mertcmii. Ilare, living. 



49. Lepcfa Cfpcoidi-s, n. s. Three sp. living. 



50. Calliosttnna varieyalum, n. s. One living sp. 



51. Maif/ariia ? Vahlii. Three sp. living, = M. piisiUa, Jeffr., teste A. Ad. 



516. Moryarifn (? v.) ttnuisculpta. Perhaps a var. of Vahlii, but sculptured. Several 

 living specimens. 



52. Maif/nritn lindnfa, n. s. Several living specimens, forming a Darwinian group, 



of which var. ». siibelevafa, var. ;3. obavUta, and hvar. y. cunica might pass 

 for species from single specimens. 



53. Marf/itrila itijlafa, n. s. Two sp. living. 



54. Me alia laefeola, ?n. s. Two sp. living, but eroded. May prove a Tar. of 



lacfea, but with different sculpture. 

 'Ah. Mcsalia (?/acteola, var.) nthplanata. Two sp. living, but eroded. 



J5.5. Lncinm vi/icta. One fresh specimen. 



.5(5. Jiisxoa cotn'iacfa, n. s. Not uncommon, living. 



57. Dn'lfia iiirisn, n. 8. Two fresh specimens. 



•)8. Driliin caticeUata, n. s. One adolescent specimen. 



50. Mdiiffc/id leridensis, n. s. One fresh specimen. 



0)0. 3Ianf/ilia aiif/ulufaf. One fresh specimen. 



(il. liclri cxcurvafa, n. s. (Ia]h^ Treieli/ann.) One fresh specimen. 



0'2. Chvmnitzia (?v.) aiirant{n-\. One fresh specimen. 



G3. Chcmnitzia torquata\. 1'wo fresh specimens. 



<>4. Chcmnitzia tndi-titataf. Two fresh specimens. 



G.J. EuUmn micans, n. s. One fresh specimen. 



G(>. Vcliittna hn-i(inta. Several fine living specimens. 



07. OciiK'bra interfoxna. Ware. dead. 



08. Nitiddia Gouldiif. Two living specimens, proving the genus. 



09. Tro'ihon muUieosfatu-n. Two fresn specimens. 



70. Chn/nodotnm ?ttibiihitu.9,iun. One young sp. 



71. Chn/sodomus rectirostris, n. s. One living sp. 



72. 73. Two species of Cephalopods, not yet affiliated. 



Besides adding more than 70 marine species to the Vancouver branch of tho 

 Californian fauna, from specimens in good condition, without a single bal- 

 last or exotic admixture, the confirmation of many species, which before 

 rested only on the uncertain testimony of the U. S. E. E. labels, and the 

 affiliation of others which, on the same testimony, had been wrongly assigned 

 to distant and erroneous localities, was no slight benefit to science. The 

 land and freshwater species of the Expedition will be found tabulated, with 

 others, in the separate lists ; par. 115. 



103. While the American naturalists were thus actively engaged in ex- 



f These species were first found by Col. Jewett at Sta. Barbara. Fide p. 537. 



fid 



