NORTHWEST COAST MARINE SHELLBEARING MOLLUSKS. 45 



? Family COOPERELLIDAE. 

 Genus COOPERELLA Carpenter, 1864. 



COOPERELLA SUBDIAPHANA Carpenter, 1864. 



Suppl. Rep. Brit. Assoc, p. 639- Arnold, Pal. San Pedro, p. L53, pi. 13, flg. 1. 

 Queen Charlotte Islands in Gulf of California. 



Superfamily TELLINACEA. 

 Family TELLINIDAE. 



Genus TELLINA (Linnaeus) Lamarck, 1799. 



TELLINA IDAE Dall, 1891. 



Proc. U. S. Nat. Mas., vol. 14, p. 183, pi. 6, fig. 3; pi. 7, figs. 1, 4; 



vol. 23, pi. 4, figs. 10, 11. 

 Santa Barbara Islands and San Pedro, California. 



Subgenus Akcopagia Leach, 1S27. 



Section MERISCA Dall, 1900. 

 ARCOPAGIA LAMELLATA Carpenter, 1857. 



Mazatlan Cat., p. 37, No. 5S. 



San Diego, California, t<> Mazatlan. 



ARCOPAGIA DECLIVIS Sowerby, 1868. 



Concli. Icon. TeUina, pi. 44, fig. 261. 

 Catalina Island, California, to Panama. 



Subgenus Moerella Fischer, 1887. 



MOERELLA SALMONEA Carpenter, 1864. 



Suppl. Rep. Brit. Assoc, p. 639; Univ. Cal. Zool. Pub!., vol. 14, 



p. 276, pi. 25, fig. 3. 

 Aleutian Islands to San Pedro, California. 



MOERELLA MEROPSIS Dall, 1900. 



Proc U. S. Nat. Mus., vol. 23, pp. 303, 317, pi. 3, fig. 1. 

 San Diego, California, to the Gulf of California. 



Subgenus Axgulxjs Megerle, 1811. 



ANGULUS CARPENTERI Dall, 1900. 



Proc U. S. Nat. Mus., vol. 23, pp. 303, 320; Univ. Cal, Zool. Publ., vol. 14, 

 p. 276, pi. 25, fig. 10. Forrester Island to Gulf of California. 



ANGULUS PANAMENSIS Dall, 1900. 



Proc U. S. Nat. Mas., vol. 23, p. 319, pi. 3, fig. 3. 

 Catalina Island, California, to Panama. 



ANGULUS MODESTUS Carpenter, 1864. 



Suppl. Rep. Brit. Assoc, p. 639; Proc Acad. Nat. Sci. Phila, for 1865, p. 54. 

 Vancouver Island to Lower California. 



167980— 21— Ball. 112 4 



