328 NEW MELANIDvE OF THE UNITED STATES. 



pressis; anfraotibus instar septenis, planulatis ; apertura grandiuseula, rbomboidea, intfis tenebrosfi ; 

 labro aeuto, vix sinuoso ; columella incurva et eontorta. 



Shell folded, conical, thin, purplish, shining, banded or without bands ; spire conical ; 

 sutures impressed; whorls about seven, flattened; aperture somewhat large, rhom- 

 boidal, dark within ; outer lip acute, scarcely sinuous; columella bent in and twisted. 

 Proc. Acad. Nat. Sei., 18(32, p. 269. 



Hob. — Caney Fork River, Tennessee, J. Lewis, M. D. ■ 



My cabinet and cabinet of Dr. Lewis. 

 Diam. -22, Length 48 inch. 



Remarlcs. — Several specimens were sent to me by Dr. Lewis for examination, nearly 

 all more or less imperfect. They are usually without bands, but when banded the 

 number is four, the two middle being approximate. An impressed line under the su- 

 ture cuts the folds, forming a row of granules. The folds are close, inclining a little 

 to the right. Below the suture some specimens have a light line. This species is 

 nearly allied to Melania {Goniobasis) Sellersiana (nobis), but differs in being more 

 pointed in having bands, and especially in having granules along the sutures. The 

 aperture is more than one third the length of the shell. 



Goniobasis cinerella. PL 38, fig. 184. 



Testa plicata, subfusifomii, tenui, luteo-cinerea, evittatfl ; spira obtuse conoidea; suturis irregulariter iru- 

 pressis; anfraotibus senis, convexiusculis ; apertura grandiuseula, ovato-rboniboidea, intiis albida; la- 

 bro acuto, vix sinuoso ; columella incurve et parum contorts.. 



Shell folded, subfusiform, thin, pale, ash-color, without bands ; spire obtusely coni- 

 cal ; sutures irregularly impressed ; whorls six, slightly convex ; aperture somewhat 

 large, ovately rhomboidal, whitish within ; outer lip acute, scarcely sinuous ; columella 

 bent in and slightly twisted. 



Proc. Acad. Nat. Sci., 1862, p. 269. 



Hab. — Tennessee, Coleman Sellers. 



My cabinet. 

 Diam. -23, Length *49 inch. 



Remarks. — A single sjoecimen only was received from Mr. Sellers. It came with two 

 young Melania {Goniobasis) rurjosa (nobis), which it resembles, but this little species is 

 not clathrate over the whole of the upper whorls, having only two transverse stria?, 

 which cut the folds below the suture, forming granules. The folds are close and 

 thick, and nearly straight. The aperture is nearly half the length of the shell. 



Goniobasis Christti. PI. 38, fig. 185. 



Testa, plicata, vel striata vel granulata, fusiformi, subcrassa, inflata, luteo-olivacea, vittatii ; spira obtuse 

 conoidea ; suturis impressis ; anfraotibus quinis, convexiusculis ; apertura pergrandi, ovato-rbomboi- 

 dea, intiis vittata ; labro acuto, vix sinuoso; columella incrassata, parum eontorta. 



