NORTHWEST COAST MARINE SHELLBEARING MOLLUSKS. 109 

 TRITONALIA EPIPHANEA Dall, 1919. 



Proc. U. S. Nat. Mus., vol. 50, No. 2295, p. 335. 

 San Pedro and Catalina Island. California. 



? TRITONALIA TRACHEIA Dall, 1919. 



Proc. U. S. Nat. Mus., vol. 5G, No. 2295, p. ;):;.".. 

 Sitka, Alaska, in 15 fathoms. 



Genus UROSALPINX Stimpson, 1865. 



UROSALPINX CINEREUS Say, 1822. 



Tourn. Acad. Nat. Sri. Phila., vol. 2, p. 23G ; Amer. Condi., vol. 3, pi. 29, 1831. 

 San Francisco Bay, to San Pedro, California, introduced with Atlantic seed 

 oysters. 



Genus EUPLEURA H. and A. Adams, 1853. 



EUPLEURA GRIPPI Dall, 1911. (Plate 5, fig. 1.) 



Nautilus, vol. 25, No. 8, p. S7. 



San Diego, California, in 15 fathoms. 



Genus TROPHON Montfort, 1810. 



Subgenus Attstrotkophon Dall, 1903. 



AUSTROTROPHON TRIANGULATUS Carpenter, 1864. 



Proc. Cal. Acad. Sci., vol. 7, p. 224; Proc. U. S. Nat. Mus., vol. 14, pi. 5, 



figs. 1, 3, 6, 1891. 

 Catalina Island and San Pedro, California. 



Subgenus Neptunea (Bolten, part, 179S) Dall, 1902. 

 NEPTUNEA DALLI Kobelt, 1878. 



Conch. Cab., ed. 2, Trophon, p. 275; Proc. U. S. Nat. Mus., vol. 9. pi. 4. 



fig. 6, 1886. 

 Arctic Ocean to Fuca Strait. 



NEPTUNEA DALLI ALTA Dall, 1S92. 



Proc. U. S. Nat. Mus., vol. 24, p. 548. 

 Bering Sea. 



NEPTUNEA SCITULA Dall, 1891. (Plate 13, fig. 6.) 



Proc. U. S. Nat. Mus., vol. 14, p. 1SS ; vol. 17, pi. 27, fig. 5, 1894. 

 Pribilof Islands to Unalaska Island, Bering Sea. 



NEPTUNEA DISPARILIS Dall, 1891. 



Proc. U. S. Nat. Mus., vol. 14, p. 189; vol. 17, pi. 27, tig. 4. 1894. 

 Fuca Strait to Columbia River entrance. 



NEPTUNEA ROTUNDATA Dall, 1902. (Plate 15, fig. 3.) 



Proc. U. S. Nat. Mus., vol. 24. No. 1264, p. 54.7. 

 Off rribilof Islands. Bering Sea. 



NEPTUNEA ELEGANTULA Dall, 1907. (Plate 6, fig. 6.) 



Smithsonian Misc. Coll., vol. 50, No. 1727, p. 165. 

 Aleutian Islands, Alaska. 



NEPTUNEA BERINGI Dall, 1902. (Plate 10, fig. 6.) 



Proc. U. S. Nat. Mus., vol. 24, No. 1264, p. 544. 

 Icy Cape, Arctic Ocean, to Puget Sound. Japan. 



167980— 21— Bull. 112 8 



