ZOOLOGY. 
385 
SAN GUINOL ARIA CALIFORNIANA. 
Sanguinolaria californiana, Cone. Jour. Acad. Pliila. VII, p. 230, pi. 17, f. 6, Carp. Rep. p. 301. 
Bab. —Mouth of Columbia river; Dr. Cooper. 
Rather common at the mouth of the Columbia and other rivers, and high up salt water 
creeks.—C. 
Family SOLENIDiE. 
SOLEN SICARIUS. 
Solen sicarius, Gould, Proceed. Bost. Soc. N. H. Ill, p. 214.— Idem, U. S. Expl. Exp. p. 387, atlas, fig. 501.— Carpent. 
Rep p. 301. 
Bab.-— 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.—C. 
MACHAERA NUTTALLI. 
Solen maximus, Wood, (nec Chemn.) Gen. Con. pi. 31, f. 3.— Idem, Ind. Test. pi. 3, f. 16. 
Solecurlus nuttallii, Conr. Journ. Acad. Pliila. VII. p. 234, pi. 17, f. 9. 
Machaera costata, Midd. (nec Say) Beit. Ill, p. 78, pi. XXI, figs. 4-10.— Idem, Reise. 
Machaera maxima, Gould, U. S. Expl. Exped.; Jay’s Cat. No. 239. 
Machaera nuttalli, Carpenter, Rep. p. 301. 
Bab. —Seacoast of Washington 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 mollusca of 
the coast, excepting always the oyster. Severe storms wash up many of these shells, but 
they soon crack under the sun’s rays, and the beautiful 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 Fuca.—C. 
Family M Y A C 11) M . 
MYA CAN CELL AT A. 
Mya cancellata, Conr. Journ. Acad. Phila. VTI. p. 235, pi. 18, f. 2.— Jay Cat. No. 265. 
Platyodon cancellalum, Conr. Journ. Acad. Phila. 1849.— Carp. Rep. p. 300. 
Bab. —San Luis Obispo; Dr. Antisell. 
Dead valves only were found. 
SPHOENIA CALIFORNIO A. 
Sphoenia californica, Conr. Journ. Acad. Phil. VII, p. 234, pi. 17, f. 11.— Carp. Rep. p. 300. 
Cryptomya californica, Conr. Journ. Acad. Phila. 1849, p. 208. 
Bab. —San Francisco; Dr. Trask. 
