1 64 Bui^i^ETiN 31 164 



figs. 1-3. 

 Tellina [Mcerella) leana Dall, Trans. Wag., Ill, 1900, p. 1015 (not T. 

 oz'alis Sow., 1825). 



Lea' s original desmptimi. — Shell transversely elliptical, compressed, 

 very inequilateral, furnished vs^ith two lamellar lateral teeth, covered with 

 minute concentric striae, which, terminating at the anterior slope, are re- 

 placed by larger ones which there interlock , substance of the shell very 

 thin ; beaks small and pointed ; cavity of the shell very shallow : margin 

 entire. 



Diam. .1, Length .2, Breadth .4, of an inch. 



Type. — No. 5135, Lea Coll., Phila. Acad. 



Horizon. — Claiborne and St. Maurice Eocene. 



Specimens figured. — Paleont. Mus. Cornell Univ. and Texas 

 State Museum. 



Localities. — Claiborne sand and base of bluff, Claiborne, 

 Ala. 



Var. yeguana, n. var., PI. 50, Fig. 7 



About one-half the dimension of the typical form ; some- 

 what broader proportionally with a more decurved basal margin ; 

 lines very fine, but of the character of lea^ia. W. Yegua Cr., Tex. 



Var. sabotica, n. van, PI. 50, Figs. 8, 9 



Specimens from Keitt's Ravine, S. C, in the U. S. National 

 Museum illustrated herewith, are exceptionally abbreviated pos- 

 teriorly and pointed anteriorly. 



Var. praegravis, n. var., PI. 50, Figs. 10-12 



Specimens associated with those mentioned just above, but 

 of much broader outline and thicker, heavier shell. 



Tellina cossmanni Dall, PI. 50, Figs. 13-16 



71 nitens A.& Greg., Mon. Faun. Eoc. Ala., 1890, p. 223, pi. 35, figs. 



13-16. 

 T. niiens Cossra., Notes Compl., 1893, p. 8. 

 T. cossmanni Dall, Trans. Wag., Ill, 1900, p. 997. 



