NOKTHWEST COAST MAKINE SHELLBEARING MOLLUSKS. 31 
Family CRASSATELLITIDAE. 
Genus CRASSATELLITES Kruger, 1823. 
CRASSATELLITES FLUCTUATUS Carpenter, 1864. 
Suppl. Rep. Brit. Assoc., p. 642 ; Proc. Cal. Acad. Sci., vol. 3, p. 209. 
Santa Barbara Islands, California. 
Genus CRASSINELLA Guppy, 1875. 
CRASSINELLA BRANNERI Arnold, 1903. 
Pal. San Pedro, p. 127, pi, 18, fig. 12. 
San Diego, California, to Panama. Pleistocene of San Pedro, California. 
Superfamily CARDITACEA. 
Family CARDITIDAE. 
Genus CARDITA (Bruguiere) Lamarck, 1799. 
Section CARDITAMERA Conrad, 1838. 
CARDITA SUBQUADRATA Carpenter, 186/. 
Suppl. Rep. Assoc., p. 642; Ann. Mag. Nat. Hist., ser. 3, vol. 15, p. 179. — 
Keep, West Coast Shells, fig. 152. 
Queen Charlotte Islands to Todos Santos Bay. ^^,' 3 ^ ^ 
Genus VENERICARDIA Lamarck, 1801. 
Section CYCLOCARDIA Conrad, 1867. 
VENERICARDIA BARBARENSIS Steams, 1890. 
Proc. U. S. Nat. Mus., vol. 13, p. 214, pi. 16, figs. 4, 3. 
Santa Barbara Channel to San Diego, California, in deep water, 
VENERICARDIA GOULDII Dali, 1902. 
Proc. Acad. Nat. Sci. Phila., pp. 709, 714; Proc. U. S. Nat. Mus., vol. 26, 
No. 1342, pi, 63, fig. 3. 
Olf San Diego, California. 
VENERICARDIA STEARNSII Dali, 1902. 
Proc. Acad. Nat. Sci. Phila., pp. 709, 714; Proc. U. S. Nat. Mus., vol. 13, 
1890, p. 216, pi. 16, figs. 5, 6. 
Puget Sound. 
VENERICARDIA PAUCICOSTATA Krause, 1885. 
Arch. f. Naturg., vol. 51, Heft 1, p. 30, pi. 3, fig. 3. 
Arctic Sea to Fuca Straits. 
VENERICARDIA CREBRICOSTATA Krause, 1885. 
Arch. f. Naturg., vol. 51, Heft 1, p. 30, pi. 3, fig. 4; Proc. U. S. Nat. Mus., 
vol. 26, pi. 63, fig. 7. 
Point Barrow, Alaska, to Monterey, California. 
