34 Bulletin ii 34 



'^ Locality. Claiborne, Alabama.'' 



Several hundred specimens of this species ranging from Lig- 

 nitic to Jackson harizons inclusive, in the collecftion at the 

 Smithsonian Institution were studied by the writer on several 

 occasions in preparing certain reports on Eocene fossils. Conrad's 

 AtliUta tuoiucyi represents only an exaggerated case of sutural 

 and labial callosit}'. Dall agreed to this view of the matter and 

 so arranged his synonyms, (Tr. Wag. Fr. Inst. Sci., vol. 3). 

 Pseudoliva vehista is similarly diseased by Lignitic conditions. 

 Vencricardia plaiiicosta is also excessively thickened imder simi- 

 lar conditions. 



Of the recentlv named V. precursor ^iwdi V. lisbonensis it may 

 be said that they are of doubtful validity. Dall was mistaken 

 in supposing that his V. pi'ecursor was associated with V. ru- 

 qatiis, a Midway species. It is in reality associated with V. 

 petrosus in the Lower Claiborne beds of Texas and is separated 

 from the latter with the greatest difficulty. Aldrich's V. 

 lisbonensis is one of the man}- connedling forms. Next year 

 we shall have occasion to give figures of the other intermediate 

 varieties. 



Lignitic localities. — Texas: Sabinetown. Alabama: Nanafalia; 

 Tuscahoma; mouth of Bashi creek; Woods bluff; Hatchetigbee 

 bluff; Yellow bluff; Gregg's landing; Bell's landing. 



Choctaw creek, Bethel, 4 mi. S. Mt. Sterling, Hatchetigbee, 

 Hendrick's marl bed, Butler. Aldrich. 



Type. — Acad. Nat. Sci. Phila. Heilpin has improperly added 

 "Claiborne, Alabama," on Conrad's original label. 



Specimen figured. — From Woods bluff. Paleontological Mus., 

 Cornell Universit}'. 



Voluta clarae, n. sp., PI. 4, fig. 2. 



Specific cliaraclerization. Size and form as indicated by the 

 figure; whorls marked by 8 or 9 costae, more or less continuous 

 from one whorl to the other; body whorl marked by costse 

 having a tendency to become somewhat shouldered and spine 

 bearing ; just below the suture are traces of fine spiral lines ; 

 they reappear near the base of the shell; otherwise surface 

 smooth, shining ; columellar plications eight in number, ulti- 

 mate anterior small, penultimate large and .strong, third 

 smaller, fourth-eighth almost linear. 



