NEW FRESH WATER, AND LAND SHELLS. 171 



Hab. Big Bigby Creek, Maury Co. Tenn. T. R. Dutton. 

 My Cabinet, and Cabinet of Mr. Dutton. 

 Diam. .50, Length .85 of an inch. 



RemarJis. — In general form this species resembles the M. Duttoniana, (nobis) 

 but differs in being less elevated in the spire, in being without tubercles, and 

 of a very dark colour; the substance of the shell is disposed to be purple. The 

 epidermis is thick and very dark. Mr. Dutton found it rare. 



Melania Nickliniana. Plate 5, Fig. 18. 



Testa IcBvi, obtuso-conoided, solidd, valde tenebrosd; suturis impressis ; anfractibus senis, subcon- 

 vexis; aperturd magna, subrotundd, intus purpuratd. 



Shell smooth, obtusely conical, solid, very dark ; sutures impressed ; whorls six, slightly convex; aperture 

 large, somewhat rounded, within purple. 



Hab. Bath County, Va. P. H. Nicklin. 



My Cabinet, and Cabinet of Mr. Nicklin. 

 Diam. .27, Length .45 of an inch. 



Remarks. — This is a robust, small species which seems not to have been 

 before noticed. It was found by Mr. Nicklin in a small stream of cold water 

 at the Hot Springs in Virginia. It is amongst the smallest species I have seen. 

 The purple colour of the interior of most of the specimens, gives the shell a 

 very dark appearance. ■ I owe to the kindness of Mr. Nicklin, to whom I dedi- 

 cate it, the possession of several specimens of this species. I am under obli- 

 gations to him also for a fine suite of M. injiata (nobis). They were found in 

 New River, Va. being that part of the great Kanawha which is above its junc- 

 tion with the Gauley River. Some of the specimens have longer spires; some 

 are lineolate, some banded, and others are without bands. Thus presenting 

 characters differing so much, as almost to deceive one as to their being iden- 

 tical.* 



* Since the above was written I have received from Dr. Warder of Cincinnati a specimen from New 

 River, which, with a re-examination of Mr. Nicklin 's specimens, satisfies me that the shell described by 

 Mr. Conrad in the appendix to his " Fresh Water Shells of the United States," under the names of M. 

 Rogersii and dilatata are identical with my inflata, my description bearing date the previous year to his. 



Within a few days I have observed in the Boston Journal of Nat. Hist. vol. 3, No. 3, descriptions of two 

 VIII. 2 T 



