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835 



TERTIARY FAUNA OF FLORIDA 



Miocene of Maryland; of Duplin County,- North Carolina; Shiloh, New 

 Jersey ; and Alaska ; Pliocene of the Caloosahatchie beds, Florida, and of 

 the California coast at San Pedro and Santa Barbara; Pleistocene of northern 

 North America and Europe; recent, almost universally distributed in the 

 temperate and colder seas. 



Saxicava abriipta Conrad (Pac. R. R. Reps., v., p. 324, pi. 3, figs. 25, 25 a, 

 1856), from the Pleistocene of San Pedro, California, is indeterminable, but 

 probably not a Saxicava ; the same may be said of 5'. parilis Conr. (Am. 

 Journ. Conch, ii., p. 70, pi. 4, fig. 6, i866), from the Mioce:ne marl of Shiloh, 

 New Jersey. 5. pcctorosa Conr. (1834, Medial Tert., p. 18, pi. 10, fig. 3, 

 1838), from the Miocene of Virginia, is probably a Petricola, as is 5'. legiinien 

 Deshayes, from the Pleistocene of San Pedro, California. The latter may 

 be identical with P. car-ditoidcs Conr. 6". myafonnis Conr. (Am. Journ. Conch., 

 ii., p. 70, pi. 4, fig. 6, 1866) is a Tliracia. S. laiicea H. C. Lea (1845) is not a 

 Saxicava, but belongs in a group closely related to, or the same as, Sportella. 

 The genus Saxicavella Fischer [Arcinella Phil., 1844, not Oken, 181 5, nor 

 Schum., 18 17), founded on the little Mya plicata Montagu, though present in 

 the European Pliocene, has not been detected in America. 



Genus CYRTODARIA Daudin. 

 Cyrtodaire Daudin, Bull. Soc. Philom., xxii., p. 170, 1799. 

 Cyrtodaria Reuss, Repertor. Comm., p. 351, 1800. 

 Glycimcris Lam., An. s. Vert., v., p. 457, 1818 ; not Lam., 1799. 

 Glyciincra Blainv. Malac, p. 571, pi. 80, fig. 3, 1825. 

 Type Cyrtodaria siliqua Daudin. 



Cyrtodaria siliqua Daudin. 

 C. siliqua Daudin, op. cit., 1799. 



Alya siliqua Chemn., Concli. Cab., xi., p. 192, pL 198, fig. 1934, 1795. 

 Glycimcris incrassata Lam., Syst. An. s. Vert., p. 126, 1801. 

 Mya picea Wood, Gen. Conch., p. 96, pL 22, fig. 5, 1815. 



Pleistocene of the Arctic and boreal Atlantic coasts ; recent from Cape 

 Cod northward to the Arctic coast, and west on the Arctic coast to the mouth 

 of the Mackenzie River ; Richardson. 



This well-known shell does not seem to have penetrated to the region of 



Bering Strait, and is only represented in Bering Sea by a diminutive recent 



analogue, the C. Kurriana Dunker. 



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