324 NEW MELANIDJE OF THE UNITED STATES. 



impressisj anfractibus instar senis, subconvcxis, ad apicern striatis; apertura grandi, ovato rhoniboidea, 

 intiis albida; labro acuto, parum sinuoso ; columella incrassata, incurva et contorts. 



Shell folded, subfusiform, thick, pale chestnut-color, without bands ; spire obtusely 

 conical ; sutures irregularly impressed ; whorls about six, somewhat convex ; striate 

 at the apex; aperture large, ovately rhomboidal, whitish within ; outer lip acute, 

 slightly sinuous ; columella thickened, incurved and twisted. 



Operculum ovate, thin, light-brown, with the polar point on the left margin near 



the base. 



Proo. Acad. Nat. ScL, 1862, p. 268. 



Hob. — North Alabama, Prof. Tuomey. 



My cabinet and cabinet of Dr. Hartman. 

 Diam. -29, Length -70 inch. 



Remarks. — A number of these species was sent to me by the late Prof. Tuomey, 

 but the older ones are very imperfect, being -generally decollate. Most of them are 

 young. The largest is nine-tenths of an inch long, but it is too imperfect to figure. 

 The folds are close, regular and are oblique to the right. On the upper whorls there 

 are one or two striaa which cut the folds as in Melania ( Goniobasis) Deshaysiana 

 (nobis). The aperture is nearly half the length of the shell. 



Goniobasis paupercula. PI. 38, fig. 176. 



Testa plicata, subcylindracea, subtenui, castanea vel tenebroso-oliva, evittata ; spira breviuscula; suturis 

 impressis ; anfractibus convexiusculis, superne plicatis, ad apicera striatis ; apertura, parvS,, ovato- 

 rhomboideS,, intus albida; labro acuto, parum sinuoso; columella incurva et parum contorts. 



Shell folded, subcylindrical, rather thin, chestnut-color or dark olive, without bands ; 

 spire rather short, sutures impressed; whorls somewhat convex, folded above and 

 striate at the apex ; aperture small, ovately rhomboidal, whitish within ; outer lip 

 acute, slightly sinuous; columella bent in and slightly twisted. 



Operculum ovate, thin, light brown, with the polar point well in from the 

 margin and above the base. 



Proc. Acad. Nat. Sci., 1862, p. 268. 



Eab. — North Alabama, Prof. Tuomey. 



My cabinet and cabinet of Dr. Hartman. 

 Diam. -27, Length -63 inch. 



Remarks— I have quite a number of this small species sent many years since by 

 Prof. Tuomey, not a single one with an entirely perfect apex, being usually decollate 

 at the second whorl from the base. Most of them, therefore, do not exhibit the folds 

 which are only on the upper whorls ; there they are pretty close and perpendicular. 

 They were all covered with black oxide of iron, which on being removed exhibits a 

 smooth brown or greenish epidermis. The aperture is probably not one-third the 

 length of the shell. 



