142 BULLETIN 112, UNITED STATES NATIONAL MUSEUM. 
Family TRI^ORIDAE. 
Genus TRi/oRA (Deshayes) Blainville, 1828. 
TRIF'ORA MONTEREYENSIS Bartsch, 1907. 
Proc. U. S. Nat. Mus., vol. 33, No. 1569, p. 249, pi. 16, fig. 17. 
Monterey, California. 
TRIF^ORA PEDROANA Bartsch, 1907. 
Proe. U. S. Nat. Mus., vol. 33, No. 1569, p. 250, pi. 16, fig. 1. 
San Pedro, California, to South Coronado Island. 
TRI^ORA CALLIPYRGA Bartsch, 1907. 
Proc. U. S. Nat. Mus., vol. 33, No. 1569, p. 251, pi. 16, fig. 4. 
San Pedro to San Diego, California, ^ '' 
TRIFORA CARPENTERI Bartsch, 1907. 
Proc. U. S. Nat. Mus., vol. 33, No. 1569, p. 252, pi. 16, fig. 16. 
Neah Bay, Washington. 
TRiVoRA CATALINENSIS Bartsch, 1907. 
Proc. U. S. Nat. Mus., vol. 33, No. 1569, p. 253, pi. 16, fig. IS. 
Catalina Island and Laguna Beach, California. 
TRIFORA STEARNSI Bartsch, 1907. 
Proc. U. S. Nat. Mus., vol. 33, No. 1569, p. 254, pi. 16, fig. 3. 
San Diego, California, to the Gulf of California. 
TRI^ORA PENINSULARIS Bartsch, 1907. 
' Proc. U. S. Nat. Mus., vol. 33, No. 1569, p. 255, pi. 16, fig. 2. 
San Diego, California, to Point Abreojos, Lower California. 
Family CERITHIOPSIDAE. 
Genus CERITHIOPSIS Forbes and Hanley, 1849. 
Section CERITHIOPSIS s. s. 
CERITHIOPSIS OXYS Bartsch, 1911. 
Proc. U. S. Nat. Mus., vol. 40, p. 332, pi. 36, fig. 2. 
San Pedro, California, to Point Abreojos, Lower California. 
CERITHIOPSIS CARPENTERI Bartsch, 1911. 
Proc. U. S. Nat. Mus., vol. 40, p. 334, pi. 38, fig. 9. 
San Pedro, California, to South -Coronado Island. 
CERITHIOPSIS PEDROANA Bartsch, 1907. 
Proc. U. S. Nat. Mus., vol. 33, No. 1564, p. 181 ; vol. 40, pi. 38, fig. 2. 
San Pedro, California, to Point Abreojos, Lower California. 
CERITHIOPSIS BERRYI Bartsch, 1911. 
Proc. U. S. Nat. Mus., vol. 40, p. 339, pi. 39, fig. 8. 
Monterey Bay, California, to South Coronado Island. (Pt 
CERITHIOPSIS CESTA Bartsch, 1911. 
Proc. U. S. Nat. Mus., vol. 40, p. 341, pi. 39, fig. 5. 
San Diego, California. 
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