114 Bulletin 31 114 



''curta'' of Conrad although the description and figure given by 

 Conrad of that species leave much to be desired, has a general 

 pomilia-smithi appearance but with longer lunule. 



Lucina carinifera Conrad, PI. 37. Figs. 25-29. 



L. carinifera Con., Foss. Sh. Tert. Form., Nov. 1833, p. 40. 



L. coriiuia L,ea, Cont. to Geol., Dec. 1833, p. 56, pi. i, fig. 29. 



L. carinifera Con., Amer. Jr. Sci., vol. i, 1846, p. 402, pi. 4, fig. 15. 



Conrad's original description. — Shell suborbicular, subequilateral 

 ventricose, with equidistant, acute, prominent concentric striae ; anterior 

 side with a profound fold, or obtuse elevation, and a cordate undulated de- 

 pression ; posterior side with a profound indented fold, emarginating the 

 base ; anterior end emarginate above the fold ; beaks prominent and in- 

 curved ; cardinal and lateral teeth distinct ; cavity capacious ; margin cren- 

 ulated. 



We have given copies of both Conrad's and Lea's figures of 

 this species insomuch as both show specimens more acutely 

 pointed anteriorly than any in our collections. The more com- 

 mon appearance of this species is shown by figs. 27-29. 



This seems to be a mere off-shoot from the pomilia stock de- 

 scribed below. The "dorsal areas" are not so sharply defined as 

 in hamatus as described by Dall, but are more distinct than in 

 pomilia. 



Type. — The two specimens in the Conradian Collection at 

 the Phila. Academy are doubtless the types. They are from the 

 Claiborne sand bed. 



Speci7nens figured. — Paleont. Mus. Cornell Univ. 



We have not found this ' 'species' ' outside of the sand bed 

 at Claiborne. 



Lucina pomilia var. smithi Meyer, PI. 38. Figs. 1-5. 



Lucina smithi Meyer, Bull, i, Geol. Surv. Ala., 1886, p. 81, pi. i, 



fig. 23. 

 Lucina pomilia Har., Bull. Am. Pal., '97, vol. 2, p. 70, pi. 20, figs. 



3. a, b. 

 Vrdb&hXy ^axt smithi aud part r«r^a Dall, Trans. Wag., Ill, p. 1358 



and 1381. 



