ZOOLOGY. 
385 
SANGUINOLARIA CALIFORNIANA. 
Sanguinolaria calif ortiiana, Cone. Jour. Acad. Phila. VII, p. 230, pi. 17, f. 6, Carp. Rep. p. 301. 
Hab. — Mouth of Columbia river; Dr. Cooper. 
Rather commou at the mouth of the Columbia and other rivers, and high up salt water 
creeks. — C. 
Family SOLENID^. 
SOLEN SICARIUS. 
Sokn sicarius, Gould, Proceed. Bost. Soc. N. H. Ill, p. 214. — Idem, U. S. Expl. Exp. p. 387, atlas, fig. 501. — Caepent. 
Rep p. 301. 
Hab. — Puget Sound; Dr. Cooper. 
A single dead shell found on the shore at the town of Steilacoom. It is probably abundant 
on the mud flats near the mouth of the Nisqually river. — 0. 
MACHAERA NUTTALLI. 
Solen maxinws, Wood, (nec Chemn.) Gen. Con. pi. 31, f. 3. — Idem, Ind. Test. pi. 3, f. 16. 
Soleairtus 7mUalUi, Conr. Journ. Acad. Phila. VII. p. 234, pi. 17, f. 9. 
Machaem cosfata, Midd. (nec Say) Beit. Ill, p. 78, pi. XXI, figs. 4-10. — Idem, Reise. 
3Iachaera maxima, Gould, U. S. Expl. Exped. ; Jay's Cat. No. 239. 
Machaera nuUalli, Carpenter, Rep. p. 301. 
Hat). — Seacoast of Washiagton Territory; Dr. Cooper. 
This shell inhabits the sand immediately upon the sea-beach, burrowing about the edge 
of the usual low tide, where it can be dug up with little trouble, as it is only a few inches 
from the surface. It is considered, and justly, the best of the many fine eatable moUusca of 
the coast, excej^ting always the oyster. Severe storms wash up many of these shells, but 
they soon crack under the sun's rays, and the beautifal epidermis falls off. 
This is the only truly marine mollusc I have been able to find on the sandy sea-beach near 
the Columbia river. It extends northward as far as the beach is sandy, but is not found, I 
believe, anywhere within the Straits of De Puca. — C. 
Family MYACID^. 
MYA CAN CELL AT A. 
3Iya cancellala, Cone. Joum. Acad. Phila. VII. p. 235, pi. 18, f. 2.— Jay Cat. No. 265. 
Platyodoii cancellatum, Conr. Journ. Acad. Phila. 1849. — Cakp. Rep. p. 300. 
Hab. — San Luis Obispo; Dr. Antisell. 
Dead valves only Avere found. 
SPHOENIA CALIPORNICA. 
Sphoeyiia californica, Conr. Journ. Acad. Phil. VII, p. 234, pi. 17, f. 11. — Carp. Rep. p. 300. 
Crypiomya californica, Conr. Journ. Acad. Phila. 1849, p. 208. 
Hab. — San FrauciEco; Dr. Trask. 
49 Q 
