Descriptions of New Fluviatile Shells. 91 



9. Melania 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, faseiis mediis ssepe confluentibus ; suturis vakle 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 {Jh millim.). 



Length of aperture 0.30 inch (lh millim.). 



Breadth of do. 0.17 inch (4 millim.). 



Habitat. — Alabama. 



My cab. Cab. Lye. Nat. Hist., N. Y. B. W. Budd, M.D. 



Obs. — Somewhat allied to M. rufescens Lea, in general form, 

 but that species has regularly convex whorls and no bands, 

 and has at least two more whorls. The number of whorls 

 in this species cannot, however, with certainty be determined, 

 since in all my specimens, seventy or eighty in number, every 

 one is decollate, but the form does not indicate the loss of more 

 than two whorls at most, and only four are present. M. ru 



