1 8 BuLivKTiN 37 l8 



beaks very small ; the dorsal area strongly bent, pallial area gib- 

 bous ; teeth normal. Height about 24 mm. 



Locality. — Both Gregg's and Bell's Landings, Ala. River, 



Ala. 



Type. — Ala. Museum of Nat. Hist. 



Remarks. — One example in the Carnegie Museum. The 

 type is broken some, shell thin for its size. 



Tellina semirotunda, n. sp. PI. 2. Fig. 17. 



Shell medium ; nearly equilateral ; anterior somewhat 

 pointed ; surface smooth, except lines of growth irregularlj^ 

 spaced ; a slightly depressed area extending from beak to base 

 behind the anterior fold. Cicatrices rather large, are well 

 marked ; pallial area large ; cardinals bifid. Length 16 mm. ; 

 height 9 mm. 



Locality. — Both Gregg's and Bell's Ldg., Ala. River, Ala. 

 Type. — Ala. Museum of Natural History. 



Tellina semipapyria, n. sp. PI. 2. Fig. 18. 



Shell medium, resembling Tellina semirotunda nobis ; sur- 

 face smooth except growth lines ; pallial sinus large, partially 

 confluent with the pallial line ; only left valve known. 



Locality. — Jackson's Rockhouse branch. Woods Bluff beds. 

 Ala. Length 23 mm. ; height 9mm. 



Type. — Ala. Museum of Nat. History. 



Remarks. — Bears a strong resemblance to the Claibornian 

 species Tellina papyria Con. but is somewhat more rotund. 



Semele langdoniana, n. sp. PI. 2. Figs. 19, 20. 



Shell oblong, oval ; surface practically smooth, showing 

 very fine lines that are coarser on the umbonal slope ; some spec- 

 imens show also fine radial lines reaching to the ventral margin ; 

 posterior shortest ; ventral margin entire ; pallial sinus profound. 

 Shell looks like a Tellina externally. Length of largest speci- 

 men is about 27 mm. 



Locality. — Bell's Landing, Monroe Co., Ala. River, Ala. 



Type. — (Left valve) Ala. Museum, University Ala. 



Remarks. — There are several fragmentary specimens in the 



