300 NEW MELANIDiE OF THE UNITED STATES. 



Remarks. — A single specimen only was sent to me by Mr. Postell. At first sight 

 it would be taken for Melania {Goniobasis) gracilior, Anth., having the same dark 

 hue, made so by the two broad, dark brown bands. It differs from it in being less 

 conical, in having a larger aperture which is more angular at the basal margin. The 

 two broad bands cover nearly two-thirds of the last whorl, leaving a yellowish inter- 

 space. In this specimen there is a brown elongate spot at the base of the columella. 

 The aperture is about three-eighths the length of the shell. 



Goniobasis Draytonii. PI. 37, fig. 134. 



Testa laevi, conoidea, erassiuseula, tenebroso-castanea, evittata vel obsolete vittata ; spira, subelevata ; 

 suturis valde impressis ; anfractibus instar senis, convexis ; apertura parva, ovata, intus tenebvoso- 

 fusca; labro acuto, parmn siuuoso ; columella valde inflecta et coutorta. 



Shell smooth, conoidal, somewhat thick, dark chestnut brown, without bands, or 

 obscurely banded ; spire somewhat raised ; sutures very much impressed ; whorls 

 about six, convex ; aperture small, ovate, dark brown within ; outer lip acute, slightly 

 sinuous; columella very much bent in and twisted. 



Operculum subrotund, thin, light brown, with the polar point well towards the 

 middle on the left. 



Proc. Acad. Nat. Sci., 1862, p. 264. 



Hob. — Fort George, Oregon, J. Drayton ; also at Walla. 



My cabinet and cabinet of Smithsonian Institution. 

 Diam. -27, Length '68 inch. 



Remarks. — A number of these specimens were sent to me by Prof. J. Henry, Sec- 

 retary of the Smithsonian Institution, having been collected by the late Mr. Drayton, 

 and to his memory I dedicate it. It is allied to Melania ( Goniobasis) nigrina (nobis) , 

 but it is not so polished and is a much thicker shell. Some of the specimens before 

 me have a thickened outer lip, with a lighter margin. The deep color within is made 

 by broad obscure bands. Some of the specimens have a white thickening in the 

 interior at the base, and some have a lighter brown mark on the exterior at the base 

 of the axis. 



Goniobasis Newberryi. PI. 37, fig. 135. 



Testa laevi, ovato-conica, subtenui, tenebroso-fusca, trivittata, inferne suturis lutea ; spira subelevata ; 

 suturis valde impressis ; anfractibus senis, inflatis; apertura parviuscula, ovato-rotundata, intus albida, 

 vittata ; labro inflato ; columella albida, incurvata. 



Shell smooth, ovately conical, rather thin, dark brown, triple-banded, yellow below 

 the sutures ; spire somewhat raised ; sutures much impressed ; whorls six, inflated ; 

 aperture rather small, ovately rounded, whitish and banded within ; outer lip 

 inflated ; columella whitish, incurved. 



