173 Eocene Mollusca 7 



Name being preoccupied is herewith changed. 



Pleurotoma pulcherritna, PI. 5, fig. 7. 



Syn. Co7ius pulchrniiiiHS Heilp., Proc. Acad. Nat. Sci. Phila., 1S79, p. 213, 

 pi. 13, fig. 8. 



A much more perfedl specimen than the type, is here figured. 

 There is no doubt of its being a Pleurotoma . 



Cylichna aldrichi, PI. 4, fig. 5. 



Sj-n. Bulla hitimbilicata Mej-er, nan B. hiumbilicata Desh. 



B. {Haiuinea) aldrichi Langdon, Anier. Jour. Sci., vol. xxxi, 1886. 



The specimen figured came from Cho(5law Corner, Ala. , where 

 it is rather common. 



M. Cossmann is in error in placing this shell under Atys ovi- 

 formis Meyer, and evidently had not seen Langdon 's descrip- 

 tion when he made his observations in "Notes Comple- 

 mentaires," 1893, p. 50. In his "Revue Bibliographique pour 

 I'Annee," 1895, he has also united Cylichna meyeri Aid. with 

 his C. acrotoma. They are not the same. A letter just received 

 from M. Cossmann places C. meyeri in the subgenus Acrostem- 

 ma of Roxania, and his species is called Bulliuella acrotoma. 



Tuba antiquata Con., PL 4, fig. 7. 



Figure of a young shell from Chocftaw Corner, Ala. 



Scala octolineata Con., PI. 4, figs. 6, a. 



These specimens are from the same vicinity where Conrad is 

 said to have obtained his .shell. It is believed to be his species. 

 Locality. — Alabama: "The Rocks," Clark county. 



Sportella gregorioi Coss., PI. 5, fig. 4. 



This form is figured because ni}' specimen seems to be the 

 opposite valve from the type figure. 



Locality. — Alabama: Claiborne sand bed at W. Pugh's, Clark 

 county. 



The Genus Ringicula in American Kocene Deposits. 



Several new species have lately been added to this genus 

 from the Eocene, and the list now contains the following, a 

 part of w^hich are described in this paper. 



