ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA. 



277 



85 



Chiton pulchellus, Gray 



Stokesii, Brod. 

 Anoraia lampe, Gray 



tenuis, n. s 



— . sp 

 Ostrea, sp. {a) 

 —, sp. (4) 

 [? = O. iridescens, Gray.] 



, sp. (e) 



[? not O. Columbiensis, Hani 

 = 0. conchaphila.^ 



, sp. {d) 



[?= 0. Virginica.'] 



. sp. (e) 



small, plicated : animal bitter. 

 Spondylus ?Lamarckii(non&)w.) 

 [ = 5. ealoifer.'] 

 36 



57jPecten inca, D'Orb. 

 |[=P. tumidus, Sow., non Turt.] 

 j [= P. ecw^WeosMS, Sow.] 



'd\ Tumbezensis, D'Orb. 



= P. aspersus, Sow., non Lam. 



19 Lima angulata. Sow 



10 Pacifica, D' Or* 



=L. arcuata,Sow., notGeinitz. 



Avicula ? margaritifera j 



[? = Margaritiphorafimbriata.'] 



sterna, Gould 



Pema, sp.(a)( = Chemnitzianum) 



sp.(4) 



Pinna maura. Sow 



tuberculosa, Sow. 



Mytilus, sp. (a) , 



Lithodomus, sp. (a) ... 

 -Vlodiola ?semifusca. Sow. (non 

 Lam. teste Hani.). 

 = M. Braziliensis, Lam. 

 = Mytilus Guiaensis, Kiist. 

 '0 Modiola, sp. (a) 



, .-(*) 



'■2 ,-(c) 



'5 ,-(d) 



^l--.-(e) 



4) Chama Buddiana, n. s 



[The specimeninDr.Gould's 

 col., supposed to be the above, 

 is C. ?/rondosa, va.r.fomicata.'] 



4' ? corrugata, Brod 



j4' echinata, Jirod. 



ii Nucula EJenensis, Sow 



4.1 exigua. Sow 



4' polita, Sow 



4 Pectunculus assimilis. Sow 



• j maculatus, Brod. 



i |Arca alteruata. Sow 



^ ; ."' aviculoides, Rve ,. 



= A. auriculata, Sow. 



^ I emarginata, Sow 



under stones, ^ buried 

 in sand, near 1. w. n 

 under stones, 1. w. n 



1. w. 



1. w. 



No. of 

 Speci- 

 mens. 



rocks, j-t. 

 rocks, J-t. 



rocks, shells, &c., ^-t. 



in clusters. 



rocks & stoneSjf — 4-t. 



on reef. 



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 j-Jt, — l.w, 



crev. of rks., ^-t.-l. w, 

 crev. of rks., ^-t.-l. w 



in soft stones, near ^-t. 

 ledges of rock, 1. w.-f- 



rocks, near 1. w. 



u. s. in grav., i-t.-l. w. 



80 



40+ 

 1 

 3 

 1 

 6 

 3 



15 



35 



330 



2v. 



10 

 130 

 30 



1 



4 



1 



20 

 35 



6 



35 

 4 

 2 

 2 

 6 



2v. 



15 

 20 I). 

 \v. 

 10 ». 



20 



1 



4 



1 



Other Localities. 



Arica, Hennah ; Islay, 30 im.+, D'Orb. 



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

 La Paz ; and Monterey, 60 fm., Rich. 



La Paz, Green. 



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

 fin., 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, 

 muddy banks, Cum. 



Guaymas, Green. 



Real Llej., on stones, 1. w., Cum. 



Puert. Port., Cum. 



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



Caraccas, sandy mud, 9 fm., Cum. 



Sand, 7 fm.. Cum. 



Puert.Port., sdy.m.&grv.,8-12fm.,CM9n, 



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



Ecuador, on 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. 



