NORTHWEST COAST MARINE SHELLBEARING MOLLUSKS. 173 



LEPTOTHYRA LURIDA Dall. 1885. 



Proc. U. S. Nat. Mus., vol. 8, p. 542— Tryon, Man., vol. 10, pi. 39a, tigs. 



27-29.? 

 Puget Sound to Cape San Lucas. 



LEPTOTHYRA BACULA Carpenter. 1864. 



Proc. Cal. Acad. Sci., vol. 3, pp. 177, 188.— Tryon, Man., vol. 10, pi. 39a, 



fig. 33. 

 Puget Sound to San Mart in Island, Lower California. 



LEPTOTHYRA PAUCICOSTATA Dall, 1871. 



Amer. Journ. Conch., vol. 7, p. 134, pi. 15, fig. 10. 

 Monterey to Coronado Islands. 



LEPTOTHYRA PAUCICOSTATA FENESTRATA Bartsch, 1919. 



Proc. U. S. Nat. Mus.. vol. 56, No. 2295, p. 358. 

 Monterey to Coronado Islands. 



LEPTOTHYRA JUANENSIS Dall, 1919. 



Proc. U. S. Nat. Mus., vol. 56, No. 2295, p. 358. 



San Diego, California, to Tia .Tuana, Lower California. 



LEPTOTHYRA GRIPPI Dall. 1911. 



Nautilus, vol. 25, No. 3, p. 25. 



San Diego, California, 100 to 150 fathoms. 



Family LIOTIIDAE. 



Genus LIOTIA Gray, 1847. 



LIOTIA FENESTRATA Carpenter, 1864. 



Suppl. Rep. Brit. Assoc, p. 652; Proc. Cal. Acad. Sci., vol. 3, p. 158. — Tryon, 



Man., vol. 10, pi. 36, fig. 97. 

 Monterey to Catalina Island, California. 



LIOTIA ACUTICOSTATA Carpenter. 1864. 



Suppl. Rep. Brit. Assoc, p. 652 ; Proc. Cal. Acad. Sci., vol. 3, p. 158. — Tryon, 



Man., vol. 10, pi. 36, fig 1. 

 Catalina Island, California, to Magdalena Bay, Lower California. 



LIOTIA ACUTICOSTATA RADIATA Dall, 1919. 



Proc Biol. Soc Wash., vol. 31, p. 8. 

 San Diego and Coronado Islands. 



Snhgenus Arene H. and A. Adams, 1854. 

 ARENE COOKEANA Dall, 1918. 



Proc Biol. Soc Wash., vol. 31, p. 8. 



South Coronado Island to Gulf of California. 



Subgenus Cynisca H. and A. Adams, 1854. 



CYNISCA FRICKI Crosse. 1865. 



.Tourn. de Conchyl., vol. 13, p. 55. 

 "California" (Frick). ? West Indies. 



167980— 21— Bull. 112 12 



