Descriptions of New Fluviatile Shells. 87 



5. Melania altipeta. 



Plate II. Fig. 5, a, b. 



T. conica, glabra, subcrassa, cornea; spira elevata ; anfr. 10, con- 

 vexis, superioribus carinatis, vel modo striatis, ultimo 1-2-fasciato ; 

 suturis distincte impressis ; apertura parva, ovata, intus fasciata, ; colu- 

 mella, incurva, in sinum efFusuri producta. 



Shell conical, smooth, horn-colored, thick; spire elevated; 

 whorls about 10, small, convex, the upper ones carinate, or 

 only striate ; sutures distinctly impressed ; aperture small, 

 elliptical, banded within; a small but distinct sinus, with an 

 acute termination at base. 



Length 0.62 inch (16 millim.). Diam. 0.24 inch (6 millim.). 



Length of aperture 0.21 inch (5 millim.). 



Breadth of do. 0.10 inch (2£ millim.). 



Habitat. — Eacoon Creek, Vinton county, Ohio. 

 My cabinet. 



Obs. — A very graceful, rather slender species, with somewhat 

 of a club-shaped form by its bulbous body whorl. Two speci- 

 mens only are before me ; one has a narrow band at the base 

 of the body whorl, the other has an additional band on the 

 penultimate, faintly indicated also on the upper whorls of the 

 spire. 



It may be compared with M. conica Say, but is much more 

 elevated, the whorls are more narrow and crowded, as well as 

 more numerous than in that species, and the aperture much 

 smaller, being only about one-fourth the length of the shell. 



From M. neglecta it differs by its more slender form, smaller 

 and more condensed whorls, and by its entirely different aper- 

 ture. The apicial whorls seem to be slightly folded. 



