CHIEFLY OF THE UNITED STATES. 1T9 



Eah. — Rutersville, Texas, Prof. C. G. Forshey. 



My cabinet and cabinet of Prof Forshey. 

 Diam. -23, Length -46 inch. 



Remarlcs. — Some fifteen specimens were sent to me a few years since by Professor 

 Forshey, to whom I am indebted for many species of Mollusca, and I propose to give 

 it his name. It is a graceful, symmetrical shell, allied to WilsonU, herein described, 

 but is smaller, brighter, and not quite so slender. It also differs in having one less 

 number of whorls. It is remarkably thin, the columella being very distinguishable 

 from the outside. The aperture is about seven-tenths the length of the shell. 



SucciNEA Grosvenorii. PI. 24, fig. 108. 



Testa obliquo-ovata, striata, subdiaphana, straminea, tenui ; spira exserta ; suturis valde impressis ; anfrac- 

 tibus quaternis, convexis ; apertura subrotunda, grandiuscula ; labro expanse ; columella incurva et 

 contorta. 



Shell obliquely ovate, striate, somewhat transparent, straw-yellow and thin ; spire 

 exserted ; sutures very much impressed ; whorls four, convex ; aperture nearly round 

 and rather large ; outer lip expanded ; columella bent in and twisted. 

 Proc. Acad. Nat. Sci. 1864, p. 109. 



Hob. — Santa Rita Valley, Kansas ? Mr. H. C. Grosvenor, and Alexandria, Louisi- 

 ana, J. Hale, M. D. 



My cabinet and cabinets of Mr. Grosvenor and Dr. Hale. 

 Diam. -.82, Length -51 inch. 



Remarlcs. — From the two habitats I have some twenty specimens. Those from 

 Santa Rita are all dead shells and opaque white from partial decomposition. Those 

 from Alexandria are in a perfect state, and present an interesting symmetrical spe- 

 cies. While the shell is a fine bright straw color, the surface is not shining, being 

 covered with well marked lines of growth. It is nearly allied to lineata, W. G. 

 Binny, from Nebraska Territory, but it is higher in the spire, not so round, and has 

 not the parallel revolving lines described by him. The aperture is about six-tenths 

 the length of the shell. I have great pleasure in naming the species after Mr. Gros- 

 venor, to whom I am indebted for many interesting Mollusca. 



SucciNEA MOORESIANA. PI. 24, fig. 109. 



Testa obliquo-ovata, minute striata, opaca, albida, subtenui ; spira exserta ; suturis impressis; anfractibus 

 ternis, convexiusculis ; apertura subrotunda ; labro subexpanso ; columella incurva et contorta. 



Shell obliquely oval, minutely striate, opaque, whitish, somewhat thin; spire ex- 

 serted ; sutures impressed ; whorls three, a little convex ; aperture nearly round ; 

 outer lip expanded ; columella incurved and twisted. 



