ZOOLOGY. 385 



SANGUINOLARIA CALIFORNIANA. 



Sanguinolaria cali/omiana, Conk. Jour. Acad. Phila. Vn, p. 230, pi. 17, f. 6, Cakp. Rep. p. 301. 

 Hob. — Mouth of Columbia river; Dr. Cooper. 



Ratlier common at the mouth of the Columbia and other rivers, and high up salt water 

 creeks. — C. 



Family SOLENID.^. 



SOLEN SICARIUS. 



Solen sicarius, Gould, Proceed. Bost. Soc. N. H. Ill, p. 214. — Idem, U. S. Expl. Exp. p. 387, atlas, fig. 501. — Cakpent. 

 Rep p. 301. 

 iTaJ.^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, (nee Chemu. ) Gen. Con. pi. 31 , f. 3. — Idem, Ind. Test. pi. 3, f. 16. 

 Soleairius nuUaUii, Conb. Journ. Acad. Phila. VII. p. 234, pi. 17, f. 9. 

 Machaera costala, Midd. (nee Say) Beit. Ill, p. 78, pi. XXI, figs. 4-10. — Idem, Reise. 

 Machaera maxima, Gocld, U. S. Expl. Exped. ; Jay's Cat. No. 239. 

 Machaera nnUalli, Carpenter, Rep. p. 301. 

 Hab. — 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 oS". 



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 foimd, I 

 believe, anywhere within the Straits of De Fuca. — C. 



Family MYACIDJ]. 

 MYA CANCELLATA. 



Mya cancellata, Conr. Journ. Acad. Phila. VII. p. 235, pi. 18, f. 2.— Jay Cat. No. 265. 

 Plalyodon cancellalum, Conb. Journ. Acad. Phila. 1849. — Cabp. Rep. p. 300. 

 Sab. — San Luis Obispo: Dr. Antisell. 



Dead valves only were found. 



SPHOENIA CALIFORNICA. 



Sphomia californica, Conr. Journ. Acad. Phil. VII, p. 234, pi. 17, f. 11. — Carp. Rep. p. 300. 

 Cryptmnya californica, CoNB. Journ. Acad. Pliila. 1849, p. 208. 

 Hab. — San Francisco; Dr. Trask. 



49 Q 



