OF CONCHOLOGY. 11? 



231. G. olivula, Conrad. Figs. 315, 316. Subfusiform, 

 smooth, somewhat thin; spire conical, decollate, suture very 

 much impressed ; whorls about 6, somewhat convex, the last 

 one large ; aperture large, ovate, rounded below. Greenish- 

 olive, obscurely banded, yellowish- white within. N. Ala. 



Fig. 316 represents O. lepida, Lea. 



232. G. fascinans, Lea. Fig. 317. Fusiform, smooth, 

 somewhat thick, shining ; spire high, conical, suture impressed; 

 whorls 6, slightly convex; aperture small, somewhat retuse at 

 base. Yellowish horn color, with three narrow bands. Yel- 

 lowleaf Greek, Ala. 



More conical and less convex than G. olivula. 



233. G. Showalterii, Lea. Fig. 318. Fusiform, rather 

 thick ; spire obtusely elevated, suture impressed ; whorls 6, 

 flatly convex, the last large ; aperture large, ovately rhombic, 

 outer lip sharp and slightly sinuate. Yellowish-brown, with 

 four narrow bands. Coosa and Cahawba Rivers, Ala. 



This species is more convex than Q. fascinans, and has four bands. 



233a. G. pupaeformis, Lea. Fig. 319. Sub-pupasform, 

 rather thick, smooth, suture impressed ; whorls 6, slightly 

 convex; aperture rather large, elongate-pyriform. Dark 

 brown, obsoletely five-banded. Coosa River, Ala. 



234. G. clausa, Lea. Fig. 320. Subpupgeform, thick, 

 very obtusely inflated; spire short, convex conical, suture 

 well impressed; whorls 7, somewhat convex; aperture very 

 small, subrhomboidal, angular at base, columella straight. 

 Olive, with or without bands. Coosa River, Ala. 



235. G. crepera, Lea. Fig. 321. Conical, somewhat thick, 

 substriate; spire somewhat raised, suture irregularly impressed; 

 whorls 6, somewhat convex; aperture ovately rhombic, angu- 

 lar below. Sooty brown. Yellowleaf Creek, Ala. 



236. G. abscida, Anth. Fig. 322. Subquadrate, smooth, 



thick; spire nearly plane from erosion ; whorls 5, the last very 



large; aperture long and narrow, subrhombic, the outer lip 



well curved below. Dark reddish-brown. Ala. 



Closely allied to, if not identical with, G. crepera. Only one specimen is 

 known. 



237. G. Vanuxemiana, Lea. Fig. 323. Obtusely conical, 

 convex, striate, solid ; spire conical, suture impressed ; whorls 

 6, somewhat convex ; aperture ovate. Yellowish, four-banded 

 Ala. 



238. G. Coosaensis, Lea. Fig. 324. Fusiform, or sub- 

 elliptical, rather thick, coarsely striate ; spire raised, conical, 

 suture well impressed; whorls 7, slightly convex, the last 

 large and narrowed below ; aperture oblique, long and very 

 narrow, angular at base. Horn color, four-banded. Coosa 

 River, Ala. 



