12 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 65 



ALECTRION COOPERI Forbes. 1850; plentiful. 



Living, Puget Sound-San Diego, California. 



ALECTRION COOPERI, var. INDISPUTABILIS I. S. Oldroyd, 1921; plentiful. 



Living, Puget Sound-San Diego, Californa. 



ALECTRION COOPERI, var. WOODWARDI Forbes, 1850; not rare. 



Living, Puget Sound-San Pedro, California. 

 ALECTRION PERPINGUIS Hinds. 1844; plentiful. 



Living, Vancouver Island, British Columbia-Cerros Island, Lower Cali- 

 fornia. 



Family COLUMBELLIDAE. 

 Genus COLUMBELLA Lamarck, 1799. 



Subgenus Alia H. and A. Adams, 1853, 



COLUMBELLA TUBEROSA Carpenter, 1865; new variety MAJOR; plentifuL 



Living, Forrester Island, Alaska-Gulf of California. 



COLUMBELLA CALIFORNIANA Gaskoin, 1852; plentiful. 



Living, Forrester Island, Alaska-Salina Cruz, Mexico. 



COLUMBELLA CARINATA Hinds, 1844; plentifuL 



Living, San Francisco Bay-Cape San Lucas, Lower California. 

 Genus ANACHIS Adams, 1853. 



ANACHIS PENICILLATA Carpenter, 1865; ten specimens. 



Living, San Pedro, California-Gulf of California. 



Genus NITIDELLA Swainson, 1840. 



NITIDELLA GOULDII Carpenter, 1857; twenty specimens. 



Living, Kodiak Islond, Alaska-San Diego, California. 

 Genus AESOPUS Gould, 1864. 



AESOPUS IDAE Bartsch, 1918, one specimen, the type. 



Not reported living. 



Genus AMPHISSA H. and A. Adams, 1853. 



AMPHISSA VERSICOLOR LINEATA Stearns, 1872; not rare. 



Living, Monterey, California. 



Family MURICIDAE. 

 Genus TRITONALIA Fleming, 1828. 



TRITONALIA LURIDA Middendorff, 1849; two specimens. 



Living, Forrester Island, Alaska-San Diego, California. 



TRITONALIA INTERFOSSA Carpenter, 1864; three specimens. 



Living, Alaska-San Diego, California. 



TRITONALIA INTERFOSSA, var. BETA Carpenter, 1864; plentifuL 



Living, Monterey, California. 



TRITONALIA KEEPI Arnold, 1903; ten specimens. 



Not reported living. 



