Descriptions of New Fluviatile Shells. 



Habitat. Tennessee. 



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



Obs. A rather small species, which, when once seen, will 

 readily be recognised afterwards. Compares with AT. suban- 

 gulata nobis ; it is less robust, more acute, and the bands are 

 of a totally different character ; the texture is quite thin, and 

 the dark bands are distinctly seen in the aperture, through the 

 substance of the shell. It has somewhat of the club-shaped 

 form of that group of shells of which H. clavceformis Lea and 

 M. castanea Lea, are members, but is more angular, and its 

 dark bands and thin texture are prominent differences. 



9. Ulelania subangulata. 



Plate II. Fig. 9. 



Testa conica, glabra, subcrassa, fusco-virente ; spira obtuse elevata ; 

 anfr. 6, convexis, superioribus bifasciatis, infra sub-angulatis, ultimo 

 6-fasciato, fasciis mediis saepe confluentibus ; suturis valde impressis; 

 apertura oblongo-ovata, intus rubente, fasciata ; columella incurva, pur- 

 purascente sinum vix formante. 



Shell conical, smooth, rather thick ; spire obtusely elevated ; 

 whorls about 6, convex, sub-angulated below the middle, brown 

 banded ; sutures deeply impressed, and situated in a deep fur- 

 row formed by the inclination of two whorls towards each other 

 at that part; lower band below the angulation, upper one mid- 

 way between it and the suture above ; body less angulated, 

 with about six reddish-brown bands, the upper and lower of 

 which are distinct and distant, the central ones confluent, more 

 distinct in the interior ; aperture small, long-ovate, within red- 

 dish and banded; columella regularly curved, purplish, no 

 sinus at base. 



Length 0.62 inch (17 millim.). Diam. 0.30 inch (74 millim.). 



