TRANSACTIONS OF WAGNER 

 588 



TERTIARY FAUNA OF FLORIDA 



Leda multilineata Conrad. 



PLATE 25, FIGURES n, ri//. 



Leila miil/ilincalfi Conr., Proc. Acad. Nat. Sci. Phila., vii., p. 258, 1855 ; Wailes, Geol. 

 Miss., p. 289, xiv., fig. 4 (bad), 1854. 



Eocene: Moody's branch beds, Jackson, Mississippi ; Wahtubbee Hills, 

 Clarke County, Mississippi; near Hickory; four and a half miles east of Shu- 

 buta, eight miles west of Enterprise, and six miles west of De Soto; Oligocene: 

 Vicksburg limestone, Mississippi, Burns ; nummulitic beds near Martin Station, 

 Florida, Willcox. Length of figured shell 20 mm. 



This fine species, which appears to range from the Middle Eocene to the 

 top of the Lower Oligocene, has not hitherto been well figured, for which 

 reason I have given an illustration of it. 



Leda concentrica Say. 

 Nucula concentrica Say, Journ. Acad. Nat. Sci. Phila., ist Ser., iv., p. 141-42, 1824; not 



of Fischer, Fos. Gouv. Moscow, 1843. 

 Leda chorea Conr., Proc. Acad. Nat. Sci. Phila., xiv., p. 1846; ibid, for 1863, p. 581 ; 



not L. eborca Conr., Journ. Acad. Nat. Sci. Phila., 2d Ser., iv., p. 295, pi. 47, fig. 



26 ( L. smirna Dall). 



Upper Miocene of Alabama, of the Deep Well at Galveston, Texas (four 

 hundred and forty to four hundred and fifty-eight feet below the surface), 

 Pleistocene of the Gulf Coast, and recent in the Gulf of Mexico ; Say, 

 Harris, Mitchell, Dall, and others. 



Leda catasarca n. s. 

 PLATE 32, FIGURE 13. 



Eocene of the Wahtubbee Hills, Clarke County, Mississippi, at stations 

 2616, 2621, 2622, 2624, and 2625 ; Burns. 



Shell small, very plump, nearly equilateral, concentrically sculptured, with 

 on the beaks and body rather wide, flatfish riblets, more crowded ventrally, 

 obsolete dorsally behind and on the dorsal and anterior portions in front ; 

 lunule very narrow, excavated, with the valve margins slightly pouting ; the 

 escutcheon similar, wider, with an excavated, obliquely grooved furrow out- 

 side of it, with rounded outer edges, the whole forming a conspicuous lanceo- 

 late area extending from the point of the rostrum to the beaks; anterior end 

 of shell rounded, base arcuate, posterior end with a short, bluntly pointed 

 rostrum ; hinge solid, with about sixteen anterior and fourteen posterior V- 



