166 DESCRIPTION OF 



Shell smooth, conical, rather thin, shining, horn-colour ; spire truncate; carinate towards the apex ; 

 sutures impressed ; whorls rather convex ; aperture small, elliptical, subangular at base, whitish. 



Hab. Alabama River, at Claiborne. Judge Tait. 



My Cabinet, and Cabinet of P. H. Nicklin. 

 Diam. .25, Length .80 of an inch. 



Remarks. — Several years previously to the death of my friend. Judge Tait, 

 he sent me a number of this species, which in form resembles M. blanda, 

 described herein. Most of them are without bands ; some, however, are finely 

 banded, and all are mutilated at the apex. I dedicate this species to my 

 lamented friend, to whose kindness I owe so many beautiful and interesting 

 objects in the natural history and geology of Alabama. 



Melania dubiosa. Plate 5., Fig. 6. 



Testa l<Bvi, conoided, suhtenui, corned; spird suhelevatd ; suturis linearibus; anfractihus septenis, 

 subconvexis ; aperturd ellipticd, parvd, infernt suhangulatd, albidd. 



Shell smooth, conical, rather thin, horn-colour ; spire rather elevated ; sutures linear ; whorls seven, 

 somewhat convex ; aperture elliptical, small, subangular at the base, whitish. 



Hab. Tenn. Dr. Troost. 



My Cabinet, and Cabinets of Dr. Troost and P. H. Nicklin. 

 Diam. .30, Length .75 of an inch. 



Remarks. — This is a rather small species, somewhat like M. simplex, Say ; 

 but seems to me to differ, in having a more elevated spire, and a smaller aper- 

 ture. The aperture is rather more than one-third the length of the shell. 



Melania ebenum. Plate 5., Fig. 7. 



Testa Icevi, obtuso-conoided, crassd, nigra ; spird obtusd ; suturis parvis; anfractibus subconvexis; 

 aperturd subgrandi, ovatd, infernt subangulatd, intus purpuratd. 



Shell smooth, obtusely conical, thick, black; spire obtuse; sutures small; whorls somewhat convex; aper- 

 ture rather large, ovate, subangular at base, within purplish. 



Hab. Robinson County, Tenn. Dr. Currey. 



My Cabinet, and Cabinet of Dr. Currey. 

 Diam. .30, Length .47 of an inch. 



