K0.2193. WEST AMERICAN MARINE M0LLVSK8—BARTSCII. 679 



ALVANIA COSMIA Bartsch. 



Five specimens, Cat. No. 2714:97, U.S.N.M., from Todos Santos 

 Bay, California. 



ALVANIA ACUTILIRATA Carpenter. 



Five specimens, Cat. No. 268741, U.S.N.M., from San Diego, Cali- 

 fornia. 



ALVANIA AEQUISCULPTA Keep. 



Eleven speciments. Cat. No. 253089, U.S.N.M., from Pacific 

 Beach, California. 



ALVANIA COMPACTA Carpenter. 



Two specimens. Cat. No. 271002, U.S.N.M., from Netarts Bay, 

 Oregon. Fifteen specimens. Cat. No. 2687-18, U.S.N.M., from Yaku- 

 tat Bay, Alaska. 



Of Rissoina we have seen additional specimens of the following 

 five species: 



RISSOIiVA KELSEYI Dall and Bartscli. 



One specimen. Cat. No. 271651, U.S.N.M., from San Diego, Cali- 

 fornia. 



RISSOINA KISTIA Bartsch. 



One specimen. Cat. No. 211678, U.S.N.M., from La Paz, Gulf 

 of California. 



RISSOINA DALLI Bartsch. 



One specimen, Cat. No. 268737, U.S.N.M., from San Pedro, 

 California. 



RISSOINA NEREINA Bartsch. 



One specimen, Cat. No. 268643, U.S.N.M., from San Bartolome 

 Bay, Lower California. 



One specimen, Cat. No. 267735, U.S.N.M., from Santa Maria Bay, 

 Lower California. 



