GONIOBASIS. 231 



bright yellow ground, and conspicuous, dark lines give, by contrast, 

 a lively and pleasant character to the shell. Compared with 31. ni- 

 grocincta (nobis) it is a larger species, its colors are more rig. 456. 

 decided, and its carina is also a prominent mark of difler- 

 ence. M. clara (nobis) is a larger and more globose species 

 its bands are broader, and it has no carina. It seems to be 

 an abundant species, varying occasionally in some of its 

 characters, but always easily recognized. More than one hundred 

 specimens are before me. — Anthony. 



120. G. subangulata, Anthony. 



Melania siihangulatci, AXTHOXT. Ann. X. Y. Lye. Nat. Hist., vi, p. 91, t. 2, f. 9, 

 WaiTli, 1854. BiNXEY, Check List, Ko. 252. Bkot, List, p. 37. Reeve, Monog. 

 Melauia, sp. 242. 



Desaiptio^i. — Shell conical, smooth, rather thick; spire obtusely 

 elevated ; whorls about six, convex, subangulated below the middle, 

 brown banded ; sutures deeply impressed, and situated in a deep 

 furrow formed by the inclination of two whorls towards each other 

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

 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, 

 Fig.45Ca. aperture small, long-ovate, within reddish and banded; 

 columella regularly curved, purplish, no sinus at base. 

 Habitat. — Alabama. 



Diameter, '30 (Jh. millim.) ; length, -02 of an inch (17 

 millim.) Length of aperture, -30 (7i millim.) ; breadth of 

 aperture, -17 of an inch (4 millim.). 



Observations. — Somewhat allied to 31. 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 spcciraeus, 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. 3L rufescens is described as having 

 ciglit. A few of the specimens are irregulai'ly and strongly striate 

 ou the body-whorl. — Anthony 



