OF THE NORTHWEST COAST OF AMERICA 29 



Rochefortia ferruginosa Dall. 1916. 



San Francisco IJay, to Santa Rosa Island, Cal. 

 Rochefortia beringensis Dall, 1916. 



Bering- Island, Bering Sea. 

 Rochefortia grebnitzskii Dall, 1916. 



Bering Island, Bering Sea. 

 Rochefortia aleutica Dall, 1899. 



Bering Sea to Coronado Islands. 

 Rochefortia compressa Dall, 1913. 



Shumagin Islands, Alaska, to Gulf of California. 

 Rochefortia pedroana Dall. 1899. 



San Pedro, Cal. 

 Rochefortia grippi Dall, 1912. 



San Diego, Cal. 

 Rochefortia golischi Dall. 1916. 



Off Santa Rosa Island, Cal. 



Gc^iuis Serridens Dall. 1899. 



Serridens oblonga Carpenter, 1865. 



San Pedro to Coronado Islands. 



Genus Pseudopythina Fischer, 1884. 



Pseudopythina rugifera Carpenter, 1864. 



Commensal with Gebia. Puget Sound. 

 Pseudopythina compressa Dall, 1899. 



Cape Lishurne, Arctic Ocean, to Acapulco. Commensal 



with Crustacean. 

 Pseudopythina myaciformis Dall, 1916. 



Commensal with Crustacean. Puget Sound. 



(rcniis I:5ornia Philippi, 1836. 



Bornia retifera Dall, 1899. 



Monterey to Santa Barbara Islands. Cal. 



Genus Lepton Turton, 1822. 



Lepton meroeum Carpenter, 1864. 

 San Diego. Cal. 



Genus Lasaea Leach, 1827. 



Lasasa rubra INIontagu, 1804. 



Vancouver Island, B. C, to Callao, Peru. Also Atlantic 



