NORTHWEST COAST MARINE SHEEEBEARING MOLLUSKS. 141 
Family RANELLIDAE. 
Genus BURSA Bolten, 1798. 
Subgenus Bufonaria Schumacher, 1817. 
BUFONARIA CALIFORNICA Hinds, 1843. 
Ann. Mag. Nat. Hist., vol. 11, April, p. 255 ; Zool. Voy. Sulphur, Moll., pi. 2, 
figs. 4, 5. 
Monterey, California, to Cerros Island, Lower California. 
Family CYMATIIDAE. 
Genus ARGOBUCCINUM Morch, 1852. 
Subgenus Fusitriton Cossmann, 1903. 
FUSITRITON OREGONENSIS Redfield, 1848. 
Ann. Lyc. Nat. Hist. N. Y., vol. 4, p. 165, pi. 11, fig. 2. 
From the line of fioating ice in winter in Bering Sea near the Pribilof 
Islands, south on the west to the Okhotsk Sea and Japan, and on the 
east to San Nicolas Island, California.; San Diego, in deeper water 
(Raymond). 
Genus CYMATIUM Bolten, 1798. 
CYMATIUM CORRUGATUM (Lamarck, 1822) TREMPERI Dali, 1907. 
Nautilus, vol. 21, No. 8, p. 85. 
San Pedro, California, to Gulf of California. Mediterranean? 
CYMATIUM GIBBOSUM Broderip, 1833. 
Proc. Zool. Soc., p. 7 ; Conch. Icon., Triton, pi. 13, fig. 38. 
San Pedro and San Diego, California, to Panama. 
Family SEGUENZIIDAE. 
Genus SEGUENZIA Jeffreys, 1876. 
SEGUENZIA CERTOMA Dali, 1919. 
Proc. U. S. Nat. Mus., vol. 56, No. 2295, p. 343. 
Off San Diego, California, in 600 fathoms. 
SEGUENZIA GIOVIA Dall, 1919. 
Proc. U. S. Nat. Mus., vol. 56, No. 2295, p. 343. 
Off Catalina Island, California, in 118 fathoms. 
SEGUENZIA CERVOLA Dall, 1919. 
Proc. U. S. Nat. Mus., vol. 56, No. 2295, p. 344. 
Off North Coronado Island, in 692 fathoms. 
SEGUENZIA CALIANA Dall, 1919. 
Proc. U. S. Nat. Mus., vol 56, No. 2295, p. 344. 
Off La Jolla and San Diego, California, in 243 to 822 fathoms. 
167980— 21— Bull. 112 ^10 
