CHIEFLY OF THE UNITED STATES. 147 



fuse is less. The young are striate on the under part of the whorls, which is never the 

 case with undulatum. The aperture is about one-third the length of the shell. I 

 have great pleasure in naming this after Mr. Joseph Lesley, Civil Engineer, to whose 

 kindness I am indebted for many Kentucky species. 



Trtpanostoma cinctum. pi. 23, fig. 60. 



Testa carinata, subfusiformi, subcrassa, tenebroso-cornea; spira subelevata ; suturis impressis; anfractibus 

 instar septenis, planulatis ; apertura parviusoula, rhomboidea, intus albida ; lubro acuto, sinuoso ; 

 columella inferne incrassata et contorta. 



Shell carinate, subfusiform, somewhat thick, dark horn-color ; spire somewhat 

 raised ; sutures impressed ; whorls about seven, flattened ; aperture rather small, 

 rhomboidal, whitish within ; outer lip acute and sinuous ; columella thickened and 

 twisted below. 



Proc. Acad. Nat. Sci., 1864, p. 112. 



Hab. — North Alabama, Prof. Tuomey. 



My cabinet. 

 Diam. -32, Length -65 inch. 



RemarTcs. — A single specimen only was received, and it was among several speci- 

 mens of Alabamense, (nobis,) to which it is allied; but it is evidently a smaller spe- 

 cies, with a comparatively shorter spire and with a more developed angle on the 

 periphery, which is accompanied by a furrow. The angle on the lower whorl is 

 cord-like, while on the upper whorls it is sharper and has the furrow deeper above. 

 There are no colored bands on this specimen, and I suspect that it will be found to 

 be generally if not always without them. The aperture is rather more than one- 

 third the length of the shell. 



-■B^ 



Trtpanostoma Currierianum. PI. 23, fig. 61. 



Testa carinata, valde attenuata, tenebroso fusco-vittata ; spira valde exserta ; suturis linearibus, vix im- 

 pressis; anfractibus instar denis, planulatis ; apertura parva, rhomboidea, intus vittata ; labro acuto, 

 valde sinuoso ; columella albida et valde contorta. 



Shell carinate, very attenuate, with dark brown bands ; spire very much drawn 

 out ; sutures linear', scarcely impressed ; whorls about ten, flattened ; aperture small, 

 rhomboidal, banded within ; outer lip acute, very sinuous ; columella whitish and 

 very much twisted. 



Operculum ovate, reddish-brown, rather thick, with the polar point near the base 

 towards the left margin. 



Proc. Acad. Nat. Sci., 1863, p. 155. 



Eah. — Florence, Alabama, Wm. H. De Camp, M. D. 



