74 Bulletin 9 266 



Aoca/zfy.—A\a.ha.msi: Alabama River, 4 miles above Hamilton 

 Bluff. 



7]k/<?.-— Paleontological Collection, Cornell University. 



Periploma butleriana, PI. 14^ fig. 13^ a. 



Syn. P. biitleriana Aid., Bull. Amer. Paleont., vol. i, p. 71, pl. 6, fig. 3. 



No specimens of this species are in our collecftion. 



Localities. — Alabama: Butler; Baker's Bluff. 



Type. — Aldrich's Collecftion. 



Cuspidaria prima, PI. 14^ fig. 14. 



. Syn. NecEra prima Aid., Bull. i. Geo!. Stu-v. Ala., p. 38, pl. 6, fig. 14, 

 1886. 



AldriM s original description. — "Shell rotund, covered with 

 rounded, close-set concentric striae ; posterior with four radiating 

 ribs ; anterior part smooth. Rostrum moderate, narrow, round- 

 ed, with a concave, almost triangular space between it and the 

 body of the shell, the end curving upward ; ventral margin hol- 

 lowed out ; dorsal margin rising slightly above the hinge line. 

 Cartilage pit, minute, bent inward in left valve, which also has 

 the posterior muscular impression strongly defined by a rib on 

 the inner side running to the dorsal margin ; hinge line nearly 

 straight 



''Locality. — Alabama: Woods Bluff. (Lower bed). 



Type. — Aldrich's colledlion. 



>li -x- * 



