236 NEW MELANID7E OF THE UNITED STATES. 



aperfcura subgrandi, rhomboido-elliptica, intus quadrivittata" ; labro acuto ; columella arcuata. ad 

 basiin obtuse angulata. 



Shell striate, somewhat elliptical, subfusiform, dark green, obscurely spotted, rather 

 thick ; spire obtusely elevated ; sutures irregularly impressed ; whorls six, rather 

 inflated, the last large; aperture rather large, rhomboido-elliptical, four-banded 

 within ; outer lip acute ; columella arcuate, obtusely angular at the base. 

 Melania nuhila, Proc. Acad. Nat. Sci., 1861, p. 118. 



Bab. — Coosa River, Wetumpka, Alabama, E. R. Showalter, M. D. 



My cabinet and cabinet of Dr. Showalter. 

 Diam. -45, Length 1-1 inch. 



BemarJcs.— Several specimens of different ages are before me. The oldest one is 

 about an inch long, the youngest about half an inch. They all bear the same dark 

 nebulous character, but the largest only has the four bands so wide as to combine 

 and give the fauces a dark purple hue, which extends to the callus of the columella. 

 The other have the columella whitish and the bands are distinct within. The oldest 

 has a few coarse striae on the upper and lower parts of the whorls, but the younger 

 ones in my possession have not these strice. There is a disposition in all these speci- 

 mens to have obscure coarse folds, which are yellowish, leaving between them dark- 

 ish spots. The aperture is nearly one-half the length of the shell. 



GONIOBASIS CAPILLARIS. PI. 34, fig. 34. 



Testa crebre striata, subfusiformi, crassiuscula, luteo-fusca, striis transversis capillaris crebressime indutis ; 

 spira valde obtusa ; suturis irregulariter impressis ; anfractibus subcompressis, ultimo grandi ; apertura 

 prandi, elongato-elliptica, intus striis capillaris ; labro crenulato ; columella albida, incrassata, 

 incurva, ad basim obtuse angulata. 



Shell thickly striate, subfusiform, somewhat thick, yellowish brown, covered with 

 close transverse stria? ; spire very obtuse ; sutures irregularly impressed ; whorls 

 somewhat compressed, the last large ; aperture large, widely elliptical, capillary stria) 

 within; outer lip crenulate ; columella whitish, thickened, incurved, obtusely angular 



at the base. 



Operculum ovate, spiral, dark brown, with the polar point near the inner side 

 and near to the base. 



Melania capillaris, Proc. Acad. Nat. Sci., 1861, p. 122. 



Bab. — Coosa Rivers, Alabama, E. R. Showalter, M. D. and Wm. Spillman, M. D. 



My cabinet and cabinets of Dr. Showalter, Dr. Spillman, Dr. Lewis and Dr. 

 Hartman. 

 Diam. -38, Length -88 inch. 



Remarks. — This species belongs to the group of which Melania {Goniobasis) im- 

 pressa (nobis) may be considered the type. It is covered with hair-like raised lines, 

 like impressa and Melania (Goniobasis) crebristriata from the same river. It may be 



