74 THE NAUTILUS. 



NEW EOCENE FOSSILS FROM ALABAMA AND MISSISSIPPI. 



BY T. H. ALDRICH. 



KELLIA INTERSTRIATA n. sp. PL v, figs. 1, 2. 



Shell orbicular, slightly inequilateral, very much the shape of a 

 tumid Diplodonta, surface smooth except in the medial part where it 

 is distinctly striated. These striae are rather coarse, extending to 

 the basal margin, but they stop at the umbo. Beaks rounded, fairly 

 prominent, pointing inward, and terminate directly above one of the 

 semi-laterals ; no lunule. Dentition normal. Length, breadth and 

 thickness about 5 mm. 



LOCALITY. Enterprise, Miss. Top of Burrstone. 



REMARKS : This shell has the general shape and outline of K. 

 suborbicularis, Mont., also a similar dentition. It is peculiar in 

 carrying the medial striations. 



Kellia prima Aldr. is a Bornia according to Prof. W. H. Dall. 



CANCELLARIA ? SOTOENSIS n. sp. PI. v. fig. 3. 



Shell small, whorls about seven, the first two and a half embryonic 

 and smooth, the cancellation beginning on the second half of the 

 third whorl : the remaining whorls strongly cancellated, the body 

 whorl contains 12 spiral lines, while the longitudinals are nearly 

 three times as many ; slightly nodular at the intersection points, 

 suture very deep. Whorls strongly rounded. Base somewhat 

 rounded. Aperture oblong, outer lip denticulated within, inner lip 

 rather twisted, and carrying a small fold near the base. Umbilicus 

 not entirely closed. 



Length 8 mm. ; width body whorl 3 mm. 



LOCALITY. De Soto, Miss. Claibornian. 



REMARKS : This little shell is more slender in shape than the 

 drawing shows, and the suture is much more deeply impressed. It 

 has somewhat the aspect of a Scala. 



CORBULA CLARKEANA n. sp. PI. V, figs. 4, 5. 



Shell small, medium thickness, valves moderately inflated. Beaks 

 not very prominent, polished, a groove running from beaks to base in 

 the largest specimens, nearly in the middle of the shell. Valves 

 marked with a few impressed lines of growth wide apart ; the outer 



