o 1 



Ostrea virginica Gmelin. 



Syst. Nat., p. 3336, No. 113. Binney, Gould's Moll, of Mass., p. 



202. White, Foss. Oysters, in 4th Report of U. S. Geol. Survey, 



1884, p. 284, 314, pi. 77 to 81.- — Carp., Moll. West. Amer., p. 306. 



Living — Gulf of St. Lawrence to Central America. Panama (C. B. 

 Adams, ident. by Carpenter). Margarita Bay and Cape St. Lucas, 

 Lower Cal., Mazatlan, Honduras, Guayaquil, S. A. (Also, China and 

 Australia?) 



PI. and Mioc. — N. Jersey to Florida (White). 



Pecten expansus Dall. 



Proc. U. S. Nat. Mus., vol. I, p. 14, 1878. 



PL — San Diego (omitted in Catal., 1888). One of the links between 



the Miocene P. {Amusium) propatulus Con., and the Living {P. caurinus 



Gould). 



Pecten floridus Hinds. 



Zool. Sulphur, p. 246, pi. 17, f. 6. 



Living — Monterey to San Diego. 



Quat. — Ventura and Spring ville, California (S. Bowers). 



Ranella californica Hinds. 



Ann. Nat. Hist., XI, p. 255, 1843. Zool. Sulphur, p. 12, pi. 2, 



f. 4, 5. Keep, West Coast Shells, p. 44, f. 24. 



Living — Monterey to San Diego. 



Quat. — Dead Man's Island, San Pedro (S. Bowers). 



Scala hindsi Carpenter. 



Proc. Zool. Soc. Lond., 1856, p. 165. Moll, of West. Amer., p. 146 



(660). S. suhcoronata, Keep, West Coast Shells, p. 49, f. 31. 



Living — Bodega Bay to San Diego. Panama. 



PI. — San Diego well. Given in Catal. of 1888 as S. suhcoronata, 

 which is now called a variety of the Panama shell, though specimens 

 have not been found in Mexico. 



Quat. — Sta. Barbara to San Pedro. 



Stenoradsia magdalensis Hinds. 



Zool. of Sulphur, 1844, p. 54, pi. 19, f. 1. Carpenter, Moll, of West. 



Amer., p. 135 (649). Dall, Proc. Nat. Mus., vol. I, p. 330, 1878. 



Keep, West Coast Shells, p. 107, f. 94. 



lAving — Monterey to Mazatlan, Mexico. 



Quat. — San Nicolas I. (S. Bowers). 



