Descriptions of New Fluviatile Shells. 



suturis impressis ; apertura ovata, parva, intus albida ; labro sinuato 

 columella incurvti, in sinum profundum producta. 



Shell conical, smooth, rather thick ; olive green ; spire much 

 elevated ; whorls 8-9, slightly convex ; sutures impressed ; 

 aperture elliptical, small, within whitish, outer lip much waved 

 or auger shaped, extending forward at base, and forming a 

 broad sinus in that region. 



Length 1 inch (26 millim.). Diam. 0.35 inch (9 millim.). 



Length of aperture 0.32 inch (8 millim.). 



Breadth of do. 0.16 inch (4 millim.). 



Habitat. Tennessee. 



My cabinet. Cab. K Y. Lye. Nat. Hist. B. W. Budd, M. D. 



Obs. Somewhat like J/. Saffordi Lea, but is clearly distin- 

 guishable by its more elongated form, its greater number 

 of whorls, and size and color of aperture. Differs from H. 

 regularis Lea by its less number of whorls, and their convexity, 

 as well as by its peculiar green color. 



3. Melania hastata. 



Plate IL Fig. 3. 



T. conica, glabra, subcrassa, nigro-castanea ; spira elevata ; anfr. 8-9, 

 vix convexis, striis spiralibus exilibus raris cinctis, ultimo vix angulato ; 

 linea flava prope basim obscure cincto ; suturis leviter impressis, albo- 

 lineatis ; apertura parva, elongato-ovata, intus purpurea ; labro sinuato ; 

 columella torta, incurva, purpurea, in sinum latum producta. 



Shell conical, smooth, rather solid, dark chestnut ; spire rather 

 obtusely elevated ; whorls 8-9 in number, slighitly convex, with 

 occasional delicate spiral striae, the upper ones subcarinate ; 

 body whorl subcarinate, with a narrow yellowish band beneath 

 the angle ; sutures moderately impressed, yellowish ; aperture 



