86 BULLETIN 112, UNITED STATES NATIONAL MUSEUM. 



HYALINA MYRMECOON Dall. 1919. 



Proc. U. S. Nat. Mus., vol. 56, p. 308. 

 San Diego, California. 



Genus CYSTISCUS Stimpson, 1865. 



CYSTISCUS POLITULUS (Cooper MS.) Dall, 1919. 



Proc. U. S. Nat. Mus., vol. 50, p. 307. 

 •Santa Barbara, California, to Cape San Lucas. 



CYSTISCUS MINOR C. B. Adams, 1852. 



Panama Shells, p. 264.— Tkyon, Man., vol. 5, pi. 12, fig. 65. 

 San Pedro, California, to Panama. 



Genus MEROVIA Dall, 1920. 



MEROVIA PYRIFORMIS Carpenter, 1865. 



.lourn. de Conchyl., vol. 13, p. 148. — Tkyon, Man., vol. 5, pi. 13, fig. 38. 

 Peril Strait, Alaska, to Mazatlan, Mexico. 



Family VOLUTIDAE. 



Genus FULGORARIA Schumacher, 1817. 



Subgenus Boreomelon Dall, 1918. 



BOREOMELON STEARNSII Dall, 1872 . 



Proc. Cal. Acad. Sci., vol. 4, p. 270, pi. 1, fig. 1. 

 Pribilof, Aleutian, and Shumagin Islands, Alaska. 



Genus PHENACOPTYGMA Dall, 1918. 



PHENACOPTYGMA CORTEZI Dall, 1908. 



Bull. Mus. Comp. Zool., vol. 43, No. 6, p. 292. 



Cortez Bank and off San Diego, California, in deep water. 



Family MITRIDAE. 

 Genus STRIGATELLA Swainson, 1840. 



Subgenus Atrimitra Dall, 1918. 



ATRIMITRA IDAE Melvill, 1893. 



The Conchologist, vol. 2, p. 140, pi. 1, fig. 6. 

 Fnrallones Islands to Cortez Bank, California. 



ATRIMITRA IDAE MONTEREYENSIS Berry, 1920. 



Proc. Mai. Soc. London, vol. 14, p. 31, figs. 1-4. 

 Monterey to San Diego, California. 



ATRIMITRA CATALINAE Dall, 1919. 



Proc. U. S. Nat. Mus., vol. 56, No. 2295, p. 308. 

 Crescent City to San Diego, California. 



ATRIMITRA DIEGENSIS Dall, 1919. 



Proc. U. S. Nat. Mus., vol. 56, No. 2295, p. 309. 

 Catalina Island to San Diego, California. 



