NEW MELANID^ OF THE UNITED STATES. 231 



flattened, rounded below, the last large ; aperture rather large, ovate, whitish 

 within ; outer lip acute ; columella arcuate, slightly thickened above, obtusely 

 angular at the base. 



Melania solidula, Proc. Acad. Nat. Sci., 1861, p. 121. 



Hab. — Yellowleaf Creek, near its junction with Coosa River, Alabama, E. E. 

 Showalter, M. D. 



My cabinet and cabinet of Dr. Showalter. 

 Diam. -33, Length -68 inch. 



Remarks. — Two specimens of this solid little species are before me. The larger 

 lias five well-defined bands, which are visible in the interior as well as the exterior. 

 The smaller one has obsolete bands on the outside, but none within. In outline 

 it is very near to Melania ahrupta, (nobis,) but it differs in being more solid and less 

 expanded in the aperture. The aperture is nearly one-half the length of the shell. 



GONIOBASIS FALLAX. PL 34, fig. 24. 



Testa kevi, pupaeformi, subcylindracea, subcrassa, vel tenebroso-fusca vel tenebroso-cornea, obsolete 

 vittata vel evittata; spirit valde elevata ; suturis irupressis ; anfraetibus septeuis, convexiusculis, 

 ultimo parvo; apertur& parva, valde constrict!, elongato-elliptica, ; labro acuto; columella paulisper 

 inflecta, ad basim obtuse angulatS,. 



Shell smooth, pupseform, somewhat cylindrical, rather thick, either dark brown 

 or dark horn-color, obscurely banded or without bands ; sutures impressed ; 

 whorls seven, slightly convex, the last small ; aperture small, very much constricted, 

 elongate elliptical ; outer lip sharp ; columella a little inflected, obtusely angular 

 at the base. 



Melania fallax, Proc. Acad. Nat. Sci., 1861, p. 120. 



Hah. — Coosa River, Alabama, E. R. Showalter, M. D. 



My cabinet and cabinet of Dr. Showalter. 

 Diam. -34, Length -96 inch. 



Remarlcs. — This species is nearly allied to clausa, herein described, but it is a 

 smaller species, rather more cylindrical and with a smaller aperture. The dark 

 specimens are four-banded, the bands being well defined inside, but obscure 

 exteriorly. These dark ones have a light line below the suture. The aperture is 

 not quite one-third the length of the shell. 



Goniobasis clausa. PL 34, fig. 25. 



Testa leevi subfusiformi, erassS., oliva, vittata vel evittata ; suturis valde impressis ; spirit obtusa, ; 

 anfraetibus septenis, convexiusculis ; apertura parva, constricta, elliptica, intus albida ; labro 

 acuto; columella paulisper inflecta, ad basim obtuse angulata. 



Shell smooth, subfusiform, thick, olive, banded, or without bands ; sutures very 

 much impressed ; whorls seven, somewhat convex ; aperture small, constricted, 



