144 



LAND AND FRESH-AVATER SHELLS OF N. A. [PART IV. 



they cross the ribs ; the ribs on the body- whorl do not reach the mid- 

 dle ; the color ochraceous and brown ; aperture narrow, elliptical ; 

 labium with interior brown bands ; superior 

 I^art of columella somewhat callous. 

 Habitat. — Savannah River. — Conrad. 



Fig. 26G. 



Fig. 2G6a. 



Fig. 267. 



Mr. Lea's description of Tryoniana 

 includes this species. Fig. 2GG is a 

 copy from Conrad's plate. It is 

 readily distinguished from the preced- 

 ing species by being narrower, more 

 fusiform and closely nodulously stri- 

 ate ; the tuberculations not being so 



well developed as in decorata. As mentioned before, Mr. 



Anthony has distributed the young of this species under the 



latter name. 



6. G. Stewardsoniana, Lea. 



Goniobasis Stewardsoniana, Lea, Proc. Acad. Nat. Sci., p. 272, 1862. Jour. Acad. 

 Nat. Sci., V, pt. 3, p. 344, t. 38, f. 210, March, 1863. Obs. ix, p. 166. 



Description. — Shell granulate, transversely striate, subfusiform, 

 thick, shining, inflated, green or brown, without bands ; spire very 

 obtuse ; sutures impressed ; whorls slightly convex ; aper- 

 ture very large, ovately rhomboidal, white within ; outer lip 

 sharp, slightly sinuous; columella bent in, thickened above 

 and below and twisted. 



Habitat. — Knoxville, Tennessee ; B. W. Budd, M.D. 



Diameter, -42; length, -70 inch. 



Observations. — Two specimens, one perfect, the other with little 

 more than the body-whorl, were given to me long since by Dr. Budd, 

 to whom I am indebted for many fresh water mollusca of our West- 

 ern and Southwestern States, one of which, properly belonging to 

 this genus, I called Melania Buddii. Of the two specimens 

 before me, the younger is almost entirely perfect, and 

 presents a fine, smooth, dark green epidermis with ti*ans- 

 verse striae, which on the upper part of the whorls are 

 broken up into gi'anulations. These stride are raised and 

 rounded, and are darker than the ground. The old spec- 

 imen is of a rusty color, having been covered with oxide 

 of iron. The aperture is more than half the length of the 

 shell. There is some resemblance of this shell to Melania (Gonio- 



