142 BULLETIN 112, UNITED STATES NATIONAL MUSEUM. 



Family TRIFORIDAE. 

 Genus TRIFORA (Deshayes) Blainville, 1828. 



TRIFORA MONTEREYENSIS Bartsch, 1907. 



Proc. U. S. Nat. Mus., vol. 33. No. 1569, p. 249, pi. 16, fig. 17. 

 Monterey, California. 



TRIFORA PEDROANA Bartsch. 1907. 



Proc. U. S. Nat. Mus.. vol. 33, No. 1569, p. 250, pi. 16, fig. 1. 

 San Pedro, California, to South Coronado Island. 



TRIFORA 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. 



TRIFORA CATALINENSIS Bartsch, 1907. 



Proc. U. S. Nat. Mus., vol. 33, No. 1569, p. 253, pi. 16, fig. 18. 

 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. 



TRIFORA 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. 1S1 ; 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. 



CERITHIOPSIS CESTA Bartsch, 1911. 



Proc. U. S. Nat. Mus., vol. 40, p. 341, pi. 39, fig. 5. 

 San Diego, California. 



