382 
ZOOLOGY. 
Family CARDIADAE. 
CARDIUM NUTTALLI. 
Cardium Nuttalli, Conr. Jour. Acad. Phila. VII, p. 229; pi. 17, f. 3.— Middend. Beitrage, III, p. 39; pi. xvi, f. 1-5. 
Carp. Rep., p. 307. 
Hub. —Shoahvater bay and Puget Sound; Dr. Cooper. San Francisco; Dr. Bigelow, Dr. Trask. 
‘ ‘ This large shell is the most abundant of the clams in Shoalwater bay, and is very much 
used as food. It inhabits a mixture of sand and mud, a few inches from the surface, in all parts 
of the bay about half way between the shores and the large channels. The Indians are very 
expert in finding them, getting numbers where a stranger can see no sign of their existence, 
by feeling for them with a knife or flat stick. In July many come to the surface and die, 
perhaps from the heat of the sun.”—C. 
CARDIUM QUADRAGENARIUM. 
Cardium quadragenarium, Conr. Jour. Acad. Phila. VII, p. 230; pi. 17, f. 5.— Carp. Rep. p. 307 
Hob .—San Luis Obispo ; Dr. Antisell, U. S. A. 
A valve of this rare species was obtained by Dr. Antisell at the above locality. 
Family LUCINIDAE. 
LUCINA CALIFORNICA. 
Lutina californica, Conrad, Jour. Acad. Phila. VIII, p. 255, pi. 20, fig. 1 _Carpent. Rep. p. 307. 
Hub. —San Diego ; Mr. Cassidy. 
Family CYCLADIDAE- 
CYCLAS, n. s. ? 
Dr. Gould enumerates two species of this genus from Oregon, C. patella and C. egregia. Not having met with any description, 
we are unable to determine whether either of them is identical with our’s or not, or whether it may not be the same as one 
of our eastern species. 
Hob .—Whidby’s island, Straits of Fuca ; Dr. Cooper. Pools near Steilacoom ; Dr. Cooper. 
Family VENERIDAE* 
VENUS STAMINEA. 
Venus staminea, Conr. Jour. Acad. Phila. VII, p. 250, pi. 19, fig. 14, 1837. 
Venerupispetitii, Desh. Rev. Zool. p. 359,1839.— Idem. Mag. de Zool. pi. 39,1841.— Midd. Beit. Ill, 51, pi. XVII, fig 
15-13. 
Venus rigida, Gould, Proceed. Bost. Soc. N. H. III,p. 227,1850.— Idem. U. S. Exploring Exped. Moll, and Shells, 
p. 420 ; Atlas, fig. 538. 
Tapes diversa, Sowb. Thes. pi. 146, fig. 41. No. 65.— Carp. Rep. p. 306. 
Tapes slraminae, Carpenter, Rep. p. 196. 
Saxidomus pelalii, Idem. Rep. p. 299. 
flab' —Shoalwater bay and Puget Sound ; Dr. Cooper and Dr. Suckley. San Francisco ; Dr. Trask. San Diego ; Lieut. 
Trowbridge. 
We have brought together the above synomomy after repeated examination and comparison 
of specimens from distant localities between the Straits of Fuca and San Diego. The northern 
shells are commonly but not invariably “ashy white,” as described by Dr. Gould, some 
