174 DESCRIPTION or 



Melania globula. Plate 5, Fig. 22. 



Testa l<Bvi, subglobosd, tenebroso-fuscd, fasciatd ; spird brevi; suturis impressis; anfractibus quater- 

 nis, subconvexis ; aperturd magnd, subrotundd, intus cczruled. 



Shell smooth, subglobose, dark brown, banded; spire short; sutures impressed; whorls four, rather convex; 

 aperture large, nearly round, within bluish. 



Hab. Tenn. Dr. Troost. 



My Cabinet, and Cabinet of Dr. Troost. 

 Diam. .22, Length .25 of an inch. 



Remarks. — This is a small globose species, with two very broad bands, one 

 immediately over, and the other below the middle of the body whorl. The 

 columella is white, inclined to a rusty hue. The interior of the base is reddish. 

 Some of the specimens are small, and present a variety in which the columella 

 is redder, and the epidermis more yellow, with the same distinctive bands. 

 The aperture is nearly two-thirds the length of the shell. 



Melania altilis. Plate 5, Fig. 23. 



Testa l<Bvi, subglobosd, crassd, pallido-corned; spird brevi; suturis parvis; anfractibus quaternis, 

 supernc subangulalis ; aperturd magnd, subrotundd, albd. 



Shell smooth, subglobose, thick, pale horn -colour; spire short; sutures small; whorls four, obtusely angu- 

 lar above ; aperture large, nearly round, white. 



Hab. Santee Canal, South Car. Professor Ravenel. 



" Susquehanna River, at Havre de Grace, Md. 

 Paludina altilis. Professor Ravenel's letter. 



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

 Diam. .27, Length .32 of an inch. 



Remarks. — Last summer I found a number of this globose little species on 

 the banks of the Susquehanna, and then considered it new, but on examina- 

 tion I found I had the same species. Prof. Ravenel having sent it to me many 

 years since under the name of Paludi^ia altilis. I am not aware that Prof. R. 

 has ever described it, never having seen any account of it. His specific name 

 for it is retained, but I have placed it among the Melania^ it having a distinct 



