NORTHWEST COAST MARINE SHELLBEARING MOLLUSKS. 155 

 Genus HALOCONCHA Dall, 1886. 



HALOCONCHA REFLEXA Dall, 1884. 



Proc. U. S. Nat. Mus., vol. 7. p. 344, pi. 2, figs. 1-3. 

 Pribilof Islands 



HALOCONCHA MINOR Dall, 1919. 



Proc. U. S. Nat. Mus., vol. 56, No. 2295, p. 350. 



Commander, Pribilof and Aleutian Islands eastward to Chirikoff Island, 

 Alaska. 



Genus AQUILONARIA Dall, 1886. 



AQUILONAKIA TURNERI Dall, 1886. 



Proc. U. S. Nat. Mus., vol. 9, p. 204, pi. 3, figs. 1-3. 

 Arctic Ocean near Bering Strait. Also Labrador. 



Family FOSSARIDAE. 



Genus FOSSARUS Philippi, 1840. 



FOSSARUS PARCIP1CTUS Carpenter, 1864. 



Ann. Mag. Nat.. Hist., ser. 3, vol. 13, p. 476. 

 Todos Santos Bay. Lower California, to Panama. 



FOSSARUS ANGIOLUS Dall, 1919. 



Proc. U. S. Nat. Mus., vol. 56, p. 350. 



Todos Santos Bay near San Diego, California. 



Genus ISELICA Dall, 1918. 



ISELICA FENESTRATA Carpenter, 1864. (Plate 13, fig. 2.) 



Ann. Mag. Nat. Hist., ser. 3, vol. 14, p. 429.— Tryon, Man., vol. 9, p. 272, 



pi. 52, fig. 11. 

 Puget Sound to the Gulf of California. 



ISELICA OBTUSA Carpenter, 1864. 



Suppl. Rep. Brit. Assoc, p. 656; Proc. Cal. Acad. Sci., vol. 3, p. 217. 

 Monterey to San Diego, California. 



ISELICA OBTUSA LAXA Dall, 1919. 



Proc. U. S. Nat. Mus., vol. 56, p., 251. 

 Vancouver Island and Puget Sound. 



Family LITIOPIDAE. 

 Genus LITIOPA Rang, 1829. 



LITIOPA BOMBYX Rang, 1829. 



Ann. Sci. Nat., p. 203.— TkyoN, Man., vol. 9, pi. 53, fig. 74. 

 Southern California and Gulf of California. Pelagic. 



Genus ALABA A. Adams, 1862> 



ALABA JEANETTAE Bartsch, 1910. 



Proc. U. S. Nat. Mus., vol. 39, p. 155, figs. 3, 4. 

 San Pedro, California, to Gulf of California. 



