54 BULLETIN 112, UNITED STATES NATIONAL MUSEUM. 



CORBULA PORCELLA Dall, 1916. 



Proc. U. S. Nat. Mus., vol. 52, No. 2183, p. 415. 

 Santa Rosa Island, California, to Panama. 



CORBULA KELSEYI Dall, 1916. 



Proc. U. S. Nat. Mas., vol. 52, No. 2183, p. 416. 

 Esteros Bay, to Catalina Island, California. 



Genus GRIPPINA Dall, 1912. 



GRIPPINA CALIFORNICA Dall, 1912. 



Nautilus, vol. 25, No. 13 , p. 12S. 

 Off San Diego Bay. California. 



Family SAXICAVIDAE. 

 Genus PANOPE Menard, 1807. 



PANOPE GENEROSA Gould, 1850. 



Proc. Boston Soc. Nat. Hist, vol. 3, p. 215; Bull. IT. S. Fish. Com., 



vol. 3, No. 23, p. 356, figs. 3—6, 1883. 

 Puget Sound to San Diego, California. 



PANOPE GENEROSA SOLIDA Dall, 1898. 



Trans. Wagner Inst., vol. 3, pt. 4, p. 831. 

 Straits of Fuca to San Francisco Bay. 



Genus PANOMYA (Gray) Adams, 1858. 



PANOMYA (ARCTICA Lamarck, 1819, ?variety) TURGIDA Dall, 1916. (Plate 2, fig. 1.) 



Proc. U. S. Nat. Mus., vol. 52, No. 2183, p. 416. 

 Unalaska to the Shumagin Islands, Alaska. 



PANOMYA BERINGIANA Dall, 1916. 



Proc. U. S. Nat. Mus., vol. 52, No. 2183, p. 415. 

 Eastern Bering Sea. 



PANOMYA AMPLA Dall, 1898. 



Trans. Wagner Inst., vol. 3, pt. 4, p. 833; Proc. U. S. Nat. Mus., vol. 24. 



No. 1264, p. 560, pi. 40, figs. 3, 4. 

 Arctic Ocean north of Bering Strait, Bering Sea, Aleutian Islands and 



eastward to Victoria, British Columbia. 



Genus SAXICAVELLA Martens, 1885. 



SAXICAVELLA PACIFICA Dall, 1916. 



Proc. U. S. Nat. Mus., vol. 52, No. 2183, p. 416. 

 Off Point Loma, San Diego, 131 fathoms. 



Genus CYRTODARIA Daudin, 1799. 



CYRTODARIA KURRIANA Dunker, 1862. 



Malak. Bliitt. 3S62, p. 38.— Posselt, Consp. Fauna Gronl., p. 96. 

 Antic Ocean and south to Norton Sound, Alaska. Also on the west coast 

 of Greenland. 



