164 TRANSACTIONS OF THE WAGNER FREE 



Subgenus Transovula Gregorio. 



Ovula (Transovula) multicarinata n. s. 



Plate 10, figures 10, 11. 



Upper Eocene of Martin's Station, Marion County, and Richard's quarry, 

 Ocala, Florida, with Niivinmlitcs WzV/coxu and N.floridana. 



Shell subglobular, slightly more slender in front, involute, solid, thin, 

 deeply, regularly, spirally channelled, with square-cut, elevated, narrower 

 interspaces or ridges covering the whole surface of the adult, but feeble in 

 the young ; outer lip broad and thick, the ridges and channels continued over 

 it from the outside to the inner margin, but not farther; aperture moderately 

 wide, of even width, channelled at the posterior commissure and axially 

 twisted; incremental lines feeble; occasionally in the middle of the spiral 

 channels a single extremely fine, weak intercalary thread appears. Max. Ion. 

 of internal cast 36; max. lat. 24 mm. 



The specimen figured from Martin's Station shows the exterior, although 

 imperfect. It is a siliceous, hollow pseudomorph, and the outer lip has been 

 broken, revealing the interior, covered with fine crystals. The specimens 

 from Ocala, of which one is figured, are internal casts. 



The only form which is likely to be confounded with this is Cyprcedia 

 fcnestrali^ Conrad, which is found also at Ocala as well as Vicksburg, Miss. 

 But the latter is a regular Cyprcea, except that it is fenestrated, which the 

 present species is not, there being no longitudinal elevated lines. The young, 

 judging by the interior of casts, has an almost smooth surface, the spirals leav- 

 ing but a trace on the mold, inside of the penultimate whorl. 



The only other forms belonging to this group which have been mentioned 

 in our paleontological literature are Oinda iota Conrad (which is a Volzndd), and 

 0. {Cyphomd) gibbosuvi, which is found fossil in the Costa Rica Pliocene. 



The subgenus Transovula, according to Fischer, was erected to receive 

 species of Ovida with both sides of the aperture dentate. I have not seen 

 the original description or type. Dr. Fischer says : " Shell oval, feebly ros- 

 trate ; lip denticulate; columellar border crenulate ; type 0. Schcfferi Greg." 

 Eocene of Italy. These characters in one sense are true of our shell, yet it 

 may be that the present species would belong elsewhere. Until further in- 

 formation is available I prefer to use Gregorio's name. 



Family CYPR^ID^. 



Genus OYPR^A Linn^. 



Cypraea pinguis Conrad. 



Plate II, figures i, i a. 



Cypriza pinguis Conrad, in Wailes's Geol. Miss., p. 2S9, pi. xvii. figs. 3 a, 3 b, 1854 (Jack- 

 son Group) ; Conrad, Proc. Acad. Nat. Sci. Phila. vii. p. 262, 1855. 



Cyprcsa iumiihts Heilprin, Trans. Wagner Inst. i. p. in, pi. 16, figs. 49, 49 a, 1887 (Tampa 

 silex-beds). 

 Eocene of Creole Bluff, Grant Parish, Louisiana (L. C. Johnson). Lower 



