67 LiGNiTic Stage 67 



Specimen figured. — Perfe(5l form from Gregg's; fragment from 

 Woods bluff". ^ 



Now in Paleont. Mus., Cornell Univ. 



Fulguroficus triserialis, PI- B, fig. 17. 



S}ai. FiilgHr triserialis \^\\\tL, Amer. Jr. Conch., vol. i, p. 260, 1865. 

 Pyrula sniithii (Sow.) Aid., Jr. Cin. See. Nat. Hist., July, 1885. 

 Fulgur triserialis Aid., Bull, i, Geol. Surv. Ala. 1S86, p. 24, pi. i, 



fig. 23b. 

 Fulguroficus argutus Clark, U. S. G. S., Bull. 141, p. 68, pi. 12, fig. 

 I, 1896. 



Whitfield's original description. — "Shell thin, clavate or pyri- 

 form;* spire short, consisting of four (or more) volution, flattened 

 above, and produced below into a long, slender canal; marked on 

 the periphery or largest part of the volution by three rows of lan- 

 ceolate nodes or subspines, the upper one being the most promi- 

 nent; aperture large elongate elliptical; canal straight; columella 

 slender and smooth; entire surface marked by sharp revolving 

 lines. 



''Locality. — Nine miles below Prairie Bluff, Ala." 



The ornamentation on Gregg's and Bell's landing specimens is 

 quite variable and the argntzis type is repre.sented. 



Not uncommon at Gregg's landing, where doubtless Whitfield's 

 specimens were obtained. Also found at Bell's. 



Type. — Hall's colledlion. 



Specimen figured. — Paleont. Mus., Cornell Univ. 



Cassidaria brevidentata, var. PI. 8, fig. 18, 



Syn. C. brevidentata Aid., Jr. Cinn. Soc. Nat. Hist., 1885, p. 152, pi. 3. 



fig. 20. 

 C. crevidentata Aid., Geol. Surv. Ala., Bull, i, pi. i, fig's. 19, 20. 

 C. brevidentata Har., Proc. Ac. Nat. vSci. Phila., 1896, p. 479, pi. 



22, fig. 10. 



Aldrich' s original description. — "Shell oblong-oval, whorls 

 seven; suture channeled; surface covered with fine revolving 

 striae; coarser, distant lines upon the body whorl, giving the 

 shell the carinated aspect of the genus; lines of growth fine, a 

 few coarser ones showing on the line of the tubercles; apex 



