TRANSACTIONS OF WAGNER 



782 



1 TERTIARY FAUNA OF FLORIDA 



a lighter ground. It is clearly distinct from the species to which it was 

 originally referred as a variety. 



Anomia ephippioides Gabb. 



Anomia ephippioides Gabb, Journ. Acad. Nat. Sci. Phila., 2d Ser., iv., p. 388, pi. 67, fig. 

 59, 1860. 



Claibornian Eocene of Texas, Gabb ; near Laredo and Wheelock, Texas, 

 Johnson and Singley. 



This species was originally very imperfectly described and figured from 

 worn specimens. The chief specific character is not alluded to. The young 

 when in perfect condition are covered with minute pustules; as the shell 

 approaches maturity these elongate and become close-set, rather coarse 

 threads, separated by narrower grooves. In perfect condition it cannot be 

 mistaken for any other American species. This sculpture, it should be clearly 

 understood, is normal to the species and entirely independent of irregularities 

 due to situs. 



Anomia Ruffini Conrad. 

 Anomia Ruffini Conr., Proc. Acad. Nat. Sci. Phila., i., p. 323, 1843; Medial Tert. Fos., 



p. 74, pi. 42, fig. 6, 1845 ; S. I. Checkl. Eoc. Fos., p. 3, 1866. 

 Anomia McGeci Clark, Bull. U. S. Geol. Surv., No. 141, p. 86, pi. 34, fig. 5 a-b, 1895. 



Eocene, Waterloo, Pamunkey River, New Kent County, Virginia, E. 

 Ruffin ; Hanover County, Virginia, and various localities in Maryland, Clark 

 and Whitfield. (Miocene of ?) 



Specimens collected by Ruffin, in the National Museum, from Shell 

 Bank and Waterloo, leave little doubt that Clark's species, from the same 

 region, is identical with that of Conrad. The characteristics of the species 

 are its large size and the irregular fluting of the shell, especially near the 

 margins. The muscular scars are usually difficult to make out, but the 

 species is an Anomia and not a Pododesinus, as might be suspected from 

 Clark's figure. The species is not found in the Caloosahatchie beds, though 

 included by an error of identification in Heilprin's list. 



The other Eocene species referred to in the literature, but which I have 

 not identified, are A nomia jugosa Conrad (Proc. Acad. Nat. Sci. Phila., i., p. 

 310, 1843; "'> P- 22 > pl- *> fifl- ! 5) fr m th e Jacksonian of South Carolina, 

 a species of which neither the description nor the figure affords sufficient 

 information to enable one to identify it, and A. navicelloides Aldrich (Nautilus, 

 xi., p. 97, Jan., 1898) from the Wood's Bluff horizon at Choctaw Corner, 

 Alabama, which is still unfigurecl. 



