ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA. 



277 



Chiton pulchellus, Gray 



— Stokesii, Brod 



Anomia lampe, Gray 



tenuis, n. s 



,sp 



Ostrea, sp. (a) 



, sp.(*) 



[? — 0. iridescens, Gray.] 

 ,sp.(c) 



[? not 0. Columbiensis, Hani. 



= 0. conchaphila.~\ 

 -, sp. (d) 



[?= 0. Virginica.~] 

 , sp. (e) 



small, plicated : animal bitter 

 Spondylus ?Lamarckii(non£ow.) 



[ = S. calcifer.'] 



,sp 



Pecten inca, D'Orb 



[ = P. tumidus, Sow., non Turt/ 



[ = P. ventricosus, Sow.] 

 Tumbezensis, D'Orb 



= P.aspersus, Sow., non Lam 



Lima angulata, Sow , 



Pacifica, D' Orb 



= L. arcuata,Sow., not Geinitz 



Avicula ? margaritifera 



[? = Margaritiphora fimbriata.'] 



sterna, Gould 



Perna, sp.(a)( = Chemnitzianum) 



, sp. (b) 



Pinna maura, Sow 



tuberculosa, Sow 



Mytilus, sp. (a) 



Lithodomus, sp. (a) ... 

 Modiola ?semifusca, Soiv. (non 

 Lam. teste Hani.). 



= M. Braziliensis, Lam. 



= Mytilus Guiaensis, Kiist. 



Modiola, sp. (a) 



, - («) 



Station. 



under stones, \ buried 

 in sand, near 1. w. n. 

 under stones, 1. w. n. 



1. w. 



1. w. 



rocks, \-t. 

 rocks, £-t. 



rocks, shells, &c, 



in clusters. 



rocks & stones, 



on reef. 



.-(*) 



,-(<*) 



— ,-(0 



Jiama Buddiana, n. s 



[The specitneninDr. Gould's 



! col., supposed to be the above, 



is C. ?frondosa, x&r.fornicata.'] 



\ ? corrugata, Brod 



I echinata, Brod 



Nicula Elenensis, Sow 



' exigua, Sow 



1 polita, Sow 



'ectunculus assimilis, Sow 



i maculatus, Brod 



•iirca alternata, Sow 



— ? aviculoides, Rve 



A. auriculata, Sow. 



— emarginata, Soiv 



on Gorgonia, 1. w. s. 

 u.s., & in crev.rks., l.w. 

 u.s., & in crev.rks., l.w 



crevices of rocks, 1. w. 

 in thick shells,|t. — l.w. 



crev. of rks., £4.-4. w. 

 crev. of rks., £-t.-l. w. 



in soft stones, near ^-t. 

 ledges of rock, 1. w.+ 



rocks, near 1. w. 



u. s. in grav., \-t.-\. w. 



No. of 

 Speci- 

 mens. 



80 



40+ 

 1 

 3 

 1 

 6 

 3 



35 

 330 

 com. 



Sv. 



2v. 



4 

 3 



10 

 130 

 30 



1 



4 



1 



20 

 35 







35 

 4 

 2 

 2 

 G 



2v. 

 15 



20 v. 



1 v. 



10 v. 



20 



1 



4 



1 



Other Localities. 



Arica, Hennah ; lslay, 30 fm. -f , D'Orb. 



St. Elena, Cum. ; Arica & lslay, D'Orb, 

 La Paz; and Monterey, 60 fm., Rich 



La Paz, Green. 



St. Elena, Salango, sandy mud, 6-10 

 fm., Cum. ; Calapan, Philippines, Sow. 



soft mud, 5 fm., Tumbez, Cum. 



Carac, sandy mud, 12-20 fm., Cum. 

 Lord Hood's Island, under coral rocks 



Panama, sandy mud ; Guayaquil ; 



Guacomayo, under stones, Cum. 



La Paz, Green. 



muddy banks, Cum. 

 muddv banks, Cum. 



Guaymas, Green. 



Cum. 



Real Llej., on stones, 1. w 



Puert. Port., Cum. 



St. Elena, sandy mud, 6fm., Cum. 



Caraccas, sandy mud, 9 fm., Cum. 



Sand, 7 fm., Cum. 



Puert.Port., sdy.m. & grv. ,8-1 2 fm. , Cum, 



Puert. Port., fine gravel, 11 fm., Cum. 



Ecuadoran st., 12 im.,Cum.; Maz., Jew, 



St. Elena, 10 fm., mud, Cum. 



Real Llejos, Atac, Xipix., sandy mud, 

 6-8 fm., Cum. ; Gulf Cal., Sow. 



