104 BULLETIN 112, UNITED STATES NATIONAL MUSEUM. 



ALIA GAUSAPATA Gould, 1850. 



Proc. Boston Soc. Nat. Hist., vol. 3, p. 170; Rep. U. S. Expl. Exp. Moll., 



pi. 19, fig. 337, 1852. 

 Port Etches, Alaska, to San Diego, California. 



ALIA CARINATA Hinds, 1844. 



Zool. Voy. Sulphur, Moll., p. 39, pi. 10, -figs. 15-16. 

 San Francisco Bay to Cape San Lucas. 



ALIA CARINATA HINDSI (Gaskoin) Reeve, 1858. 



Couch. Icon. Columbella, fig. 143. 

 Monterey to 'San Diego, California. 



ALIA CARINATA CALIFORNIANA Gaskoin, 1852. 



Proc. Zool. Soc, p. 12.— Aknold, Pal. San Pedro, pi. 10, fig. 9, 1903. 

 Forrester Island, Alaska, to Salina Cruz, Mexico. 



ALIA CALLIMORPHA Dall, 1919. 



Proc. U. S. Nat. Mus., vol. 56, p. 330. 



San Diego, California, to Magdalena Bay, Lower California. 



ALIA CASCIANA Dall, 1919. 



Proc. U. S. Nat. Mus., vol. 56, p. 300. 

 La Jolla, San Diego County, California. 



Subgenus Astyris H. and A. Adams, 1853. 



ASTYRIS ROSACEA Gould, 1840. 



Amer. Journ. Sci., vol. 38, p. 197 ; Inv. Mass., p. 311, pi. 13, fig. 195, 1841. 

 Icy Cape, Arctic Ocean, south to Peril Straits, Alaska. Circumboreal. 



ASTYRIS AMIANTIS Dail, 1919. 



Proc. U. S. Nat. Mus., vol. 56, p. 331. 

 Kyska Harbor, Aleutian Islands, Alaska. 



ASTYRIS PERMODESTA Dall, 1890. 



Proc. U. S. Nat. Mus., vol. 12, p. 327, pi. 5, fig. 4. 



Unalaska, Aleutian Islands, south to San Diego, California, in deep water. 



ASTYRIS AURANTIACA Dall, 1871. 



Amer. Journ. Conch., vol. 7, p. 115, pi. 15, fig. 13. 

 Monterey, California, to Magdalena Bay, Lower California. 



ASTYRIS HYPODRA Dall, 1916. (Plate 6, fijr. 10.) 



Nautilus, vol. 30, No. 3, p. 27 ; Proc. Cal. Acad. Sci., vol. 5, pi. 1, fig. 5. 

 Puget Sound to Puerto Libertad, West Mexico. 



Genus NITIDELLA Swainson, 1840. 



NITIDELLA GOULDII Carpenter, 1857. 



Proc. Zool. Soc, p. 208. 



Kodiak, Alaska, to San Diego, California. 



7NITIDELLA LUCULENTA Dall, 1919. 



Proc U. S. Nat. Mus., vol. 56, p. 331. 

 Fuca Strait to Coronado Islands. 



