218 LAND AND FRESH-AVATER SHELLS OF N. A. [PART IV. 



104. G. cruda, Lea. 



Goniobasis cruda, Lea, Proc. Acad. 'Sat. Sci., p. 270, 18G2. Jour. Acad. Nat. Sci., 

 V, pt. 3, p. 332, t. 38, f. 190, March, 18G3. Obs., ix, p. 154. 



Description. — Shell cariuate, subfusiform, rather thin, shining, dark 

 brown, obscurely banded ; spire obtuse ; sutures slightly impressed ; 

 ■\vhorls flattened above, the last one large ; aperture rather largo, 

 rhomboidal, dark within; outer lip acute, scarcely sinuous; colu- 

 mella slightly incurved, scarcely thickened. 



Habitat.— Tennessee Eivcr; Dr. Spillman. 



Diameter, -38 ; length, -68 of an inch. 



Observations. — Only two specimens were received from Dr. Spill- 

 man, both much worn at the apex. Two of the lower whorls 



435. ' 



only are perfect. The bands on both are imperfect and obscure. 



They may be considered to be three, one being on the periph- 

 I ery of the whorl. One is much darker in the interior than 



the other, and has a dark purple mark at the base of the colu- 

 mella. It has very much the form of Melania {C4oniobasiii) perfusca 

 (nobis), but differs in size, in aperture and iu carination. The char- 

 acter of the upper whorls cannot be ascertained by these specimens, 

 nor the proportion of the aperture, but it must be nearly one-half the 

 length of the shell. — Lea. 



105. G. Whitei, Lea. 



Goniobasis IVliitei, Lea, Proc. Acad. Nat. Sci., p. 266, 1862. Jour. Acad. Nat. Sci., 

 V, pt. 3, p. 310, t. 37, f. 151, Marcli, 1863. Obs., ix, p. 132. 



Description. — Shell smooth, fusiform, thick, very much inflated, 

 yellowish-brown, bright, three-banded ; spfre very obtuse , sutures 

 somewhat impressed ; whorls flve, flattened above, the last being 

 veutricose ; aperture very large, widely rhomboidal ; outer lip acute, 

 straight ; columella bent in, thickened and twisted. 



Habitat. — Georgia; Eev. George White. 



Diameter, -35 ; length, "Gl of an inch. 



Observations. — Two specimens were received among Mr. White's 

 shells, but the part of Georgia was not designated from where he 

 obtained them, probably towards the north. In outline it closely 

 resembles KicJdiniana, as well as Vauxiana, herein described. It is 

 rather more obtuse iu the apex than ^^icJcUniana, and not so round 



