288 NEW MELANIDiE OF THE UNITED STATES, 



(nobis), but is not carinate like that species, nor are the whorls so flat. The two 

 specimens from Florence, are larger, and very dark brown. Of the six from Tus- 

 cumbia, four are yellowish, and two are banded and greenish. Two of the yellowish 

 ones are disposed to salmon-color inside. There is a slight disposition above the pe- 

 riphery to flatness or indentation. The aperture is more than the fourth of the length 

 of the shell. 



Trypanostoma Alabamense. PI. 36, fig. 113. 



Testa carinata, crassiuscula, subfusiformi, tenebroso-cornea ; spira- subattenuata ; suturis regulariter im- 

 pressis; anfractibus instar octonis, planulatis, inferne striatis ; apertura parviuscula, rliornboidea, intus 

 albida ; labro acuto, sinuoso ; columella inferno incrassata et valde contorta. 



Shell carinate, somewhat thick, subfusiform, dark horn-color ; spire somewhat at- 

 tenuate ; sutures regularly impressed ; whorls about eight, flattened, striate below ; 

 aperture rather small, rhomboidal, whitish within ; outer lip acute, sinuous ; columella 

 thickened below and very much twisted. 



Proo. Acad. Nat. Soi., 1862, p. 171. 



Hah. — North Alabama, Prof. Tuomey ; Florence, Alabama, Rev. G. White. 



My cabinet. ' 

 Diam, *46. Length I'll inch. 



Remarks. — This species is allied to Florencense, herein described, in outline, but is a 

 much smaller species, less exserted in the spire, of a much lighter color and with fewer 

 whorls. The three specimens before me differ but little in size or color, neither has 

 a perfect apex, and therefore the character or the exact number of the upper whorls 

 cannot be ascertained. They all have a few indistinct revolving striae below the pe- 

 riphery of the last whorl. The aperture is about one-third the length of the shell. 



Trypanostoma ligatum. PI. 36, fig. 114. 



Testa carinata, subfusiformi, subcrassa, inflata, nitida, vittatavelevittata, luteo-oliva ; spira obtuse conica; 

 suturis impressis ; anfractibus septenis, convexiusculis, ultimo pergrandi et ligato apud peripherium ; 

 apertura grandi, rhomboidea/intus obsolete vittata; labro acuto, sinuoso; columella inferne incrassata, 

 ad basini rufo-maculata, valde contorta. 



Shell carinate, subfusiform, rather thick, inflated, shining, with or without bands, 

 yellowish olive ; spire obtusely conical ; sutures impressed ; whorls seven, slightly 

 convex, the last very large, corded on the periphery ; aperture large, rhomboidal, 

 obscurely banded within* outer lip acute, sinuous; columella thickened below, with 

 reddish spots at the base, and much contorted. 

 Proc. Acad. Nat. Soi., 1862, p. 171. 



Hob. — Tennessee, Prof. Troost ; Cumberland River, C. T. Downie ; North Alaba- 

 ma, Prof. Tuomey ; Ohio River, at Cincinnati, U. P. James. 



My cabinet and cabinets of Dr. Hartman and Mr. James. 

 Diam. -38, Length -71 inch. 



