76 Bulletin ii 76 



Specimens figured. — Fig. 5, Nanafalia; fig. 6, Gregg's landing; 

 fig. 7, Bell's landing; Paleontological Museum Cornell University. 



Turritella praecincta, PI. 10, fig. 8. 



Syn. Turritella prcecinda Con.. Proc. Ac. Nat. Sci. Phila., 1864, p. 211. 



Conrad's original description. — "Turrited, broad at base; sides 

 straight; a profoundly elevated, thick, angular carina revolves at 

 the summit of each volution, gradually disappearing at the fourth 

 whorl; carina slightly channeled above and having a single re- 

 volving line beneath its juncture with the whorls, which have 

 each three revolving lines, the inferior one most- prominent. 

 Length 3^ inches; width of body whorl, independant of carina, 

 y^ inch. » 



''Locality. — Dallas Co.? Alabama Eocene. 



"This large species differs from T. mortoni in having a larger 

 and more amply elevated carina, larger and fewer revolving striae, 

 etc. It is allied to T. 7'otifera L,am. The specimen described 

 was loaned for the purpose by Mr. R. P. Whitfield. Other .speci- 

 mens are in Barnum's Museum, N. Y." 



As a rule there is no need of confounding this with any other 

 Turritella, but some of the large Yellow bluff specimens are in- 

 termediate between this and Mimerosa. 



Localities. — Ala.: Gregg's landing; Bell's landing; Yellow 

 bluff; Tuscahoma. 



Va.: Aquia creek. 

 Typef 



Specimen figured. — Gregg's landing; Paleont. Mus. , Cornell 

 Univensity. 



Mesalia pumila, var. alabamiensis, PI. 10, fig. 9. « 



Syn. See Bull. Am. Pal., vol. i, p. 226 and 227, pi. 22, fig. i, 1896. 



This is an extremely variable form, as noted on the pages of 

 Bull. Am. Pal., vol. i, just referred to. The figure herewith 

 given shows a typical form of the variety alabamiensis. Others 

 at Nanafalia show ornamentation like that of tj^pical pumila, 

 though perhaps the revolving lines are a little more sharply cari- 

 nate. In the same bed are typical alabainiensis. Gregorio has 

 suggested the reference of alabamiensis to vittata Lam. The re- 

 semblance is occasionall3^ striking. 



