318 NEAV MELANIDjE OF THE UNITED STATES. 



Remarks. — In size, color and outline this is nearly allied to Draytonii, herein des- 

 cribed, but may at once be distinguished by that species having no folds, and in being 

 more convex in the whorls. It cannot be confounded with Melania ( Goniobasis) 

 Newberryi (nobis), which is shorter, more inflated, and has two bands. The Bairdi- 

 ana has five or six apicial whorls, furnished with close, regular, well formed perpen- 

 dicular folds. The lower whorls have two or three very minute revolving strias im- 

 mediately below the suture, where the color is lighter. There is a disposition to 

 thickening on the inner margin of the outer lip, and along this edge a little coloring 

 of brown is observable. The aperture is nearly the third of the length of the shell. 

 I have great pleasure in dedicating this interesting little species to my friend Prof. 

 Spencer F. Baird of the Smithsonian Institution, to whom I am greatly indebted for 

 many kind services, and who has done so much for the advancement of the Natural 

 Sciences of our country. 



Goniobasis inclinans. PI. 37, fig. 165. 



Testa valde plicata, subattenuata, tenebroso-fuseS., subtenui, obsolete vittata ; spira subattenuata, mu- 

 cronata ; suturis sulcatis ; anfracfcibus octonis, planulatis, plicis inclinantis indutis ; apertura parva, 

 l-liomboidea, iutiis dilute fuscescente ; labro acuto, sinuoso ; columella valde incurvii, fusco-rufes- 

 cente et valde contorts.. 



Shell very much folded, somewhat drawn out, rather thin, obscurely banded; spire 

 subattenuate, sharp-pointed ; sutures furrowed ; whorls eight, flattened, covered with 

 oblique folds ; aperture small, rhomboidal, pale brown within ; outer lip acute, sinu- 

 ous ; columella very much bent in, brownish red and very much twisted. 



Operculum ovate, very thin light brown, with the polar point nearer to the 

 centre than usual. 



Proe. Acad. Nat. Sci., 1862, p. 267. 



Rah. — New Albany, Georgia, Rev. G. White ; Etowah, J. Postell ; Tuscumbia, 

 Alabama, B. Pybas. 



My cabinet and cabinets of Mr. White, Mr. Postell, Mr. Pybas and Dr. Hartman. 

 Diam. - 27, Length -68 inch. 



Remarks. — A large number of this species was sent to me by Mr. White and Mr. 

 Pybas. They were generally incrusted with carbonate of lime, which was easily re- 

 moved. It has some resemblance to Melania (Goniobasis) Deshaysiana, but it is a 

 smaller species, with numerous folds much inclining to the left, and generally covering 

 all the whorls. These folds are crossed by revolving stride which form numerous 

 nodes, giving a general rough appearance to the surface. Below the suture there is 

 generally a light line. There is usually a dark band at the base of the columella 

 more distinct inside, and sometimes several indistinct ones may be observed above. 

 It reminds one of Melania (Goniobasis) Edgariana (nobis), but that is a much larger 



