22S NEW MELANIDiE OF THE UNITED STATES. 



Shell smooth, subfusiform, rather thin, yellowish horn-color, obscurely banded, 

 shining ; spire raised ; sutures very much impressed ; whorls about six, slightly 

 convex above, inflated below ; aperture rather large, ovate, yellowish white within ; 

 outer lip acute; columella inflected, thickened above and rounded at the base. 



Proe. Acad. Nat. Sei. 1861, p. 123, as Melania propria, which was repeated in this paper in error. 



SaJ.— Yellowleaf Creek, Shelby County, Alabama, E. R. Showalter, M. D. 



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

 Diam. -42, Length -98 inch. 



Remarlcs. — A single specimen was sent to me by Dr. Lewis, Mohawk, N. Y., who 

 received it from Dr. Showalter. It is allied to straminea herein described, and to 

 Melania proteus (nobis). It was more elongate than the former, and larger and darker 

 horn-color. It differs from the latter in not being so solid and in being more oval. The 

 specimen before me is eroded at the apex, and therefore the apicial whorls 

 cannot be described, nor the number correctly ascertained. There is a slight 

 swelling below the suture, and irregular flattenings on the bulge of the whorls. 

 A single obscure band is visible on the upper part of the whorls, and some obscure 

 striae on the lower part. 



Goniobasis Shelbyensis. PI. 34, fig. 18. 



Testa lsevi, fusiformi, subcrassa, olivacea, vittata vel evittata ; spira obtuse conica ; suturis impressis ; 

 anfractibus superne planulatis; apertura parviuscula, subovatii, intus alba; labro aeuto ; columella 

 inflecta, ad basim obtuse angulata. 



Shell smooth, fusiform somewhat thick, banded or without bands ; spire obtusely 

 conical ; sutures impressed ; whorls flattened above ; aperture rather small, subovate, 

 white within ; outer lip acute ; columella inflected, obtusely angular at base. 

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



Hah. — Yellowleaf Creek, Alabama, E. E. Showalter, M. D. 



My cabinet and cabinet of Dr. Showalter. 

 Diam. "38, Length - 86 inch. 



Remarlcs. — This species is allied to clausa and to hellula herein described. It 

 is more elliptical than either, and smaller than the former. One of the specimens 

 before me has four well-defined, though not strong bands, while another is entirely 

 without any. The aperture is nearly half the length of the shell. Neither of the 

 two specimens before me have a perfect spire, and thence the number of whorls 

 cannot be ascertained. 



Goniobasis sua vis. PI. 34, fig. 19. 



Testa lsevi, subfusiformi, subcrassa, luteo-viridi, polita, quadrivittata ; spira. obtuso-conica ; suturis 

 regulariter impressis ; anfractibus senis, superne planiusculis ; apertura subgrandi, elliptic^,, intus 

 albida et vittata ; labro acuto ; columella incurva, ad basim rotundatS,. 



