OF CONCHOLOGY. 119 



247. G. oliva, Lea. Elliptical, striate, solid ; spire rather 

 short, suture much impressed; whorls 5, convex; aperture 

 small, oval. Brown. N. Ala. 



Narrower and smaller ths.n lata, resembling Jiurpa in form, but the aper- 

 ture is wider and more rounded below. 



248. G. proteus, Lea. Fig. 339. Subcylindrical, pupas- 

 form, thick, smooth ; spire elevated, suture impressed ; whorls 

 6, convex ; aperture small, ovate, well rounded at base. Yel- 

 lowish horn color. Tuscaloosa, Ala. 



249. G. grisea, Anth. Fig. 339a. Ovate, smooth, thick ; 

 spire elevated, suture well impressed ; whorls 7. convex, the 

 last obscurely ribbed. Dull gray, obscurely banded. Tennes- 

 see River, Ala. 



250. Gr. culta, Lea. Figs. 340, 341. Subfusiform, inflated, 

 rather thick, rugosely striate; spire obtuse, suture irregularly 

 very much impressed ; whorls 7, carinate above, the last bi- 

 angulate ; aperture wide, rhomboidal. Greenish-yellow, three 

 or four-banded. Coosa River, Ala. 



Fig. 341 represents G. suavis, Lea. 



251. G. luteola, Lea. Subfusiform, obtusely conoidal, 

 somewhat thick, straw color ; spire conical, suture impressed : 

 whorls 5, the last large, inflated, subangulated above, a little 

 striate below ; aperture large, subrhomboidal, obtusely angu- 

 late ajt base. Straw color. Coosa River, Ala. 



252. G. gravida, Anth. Fig. 344. Ovate, smooth, thick ; 

 spire conical, suture moderate ; whorls 7 — 8, nearly flat, the 

 last large, inflated, subangulate in the middle; aperture oval, 

 a little angulated at base. Light brown, livid within. Ala. 



253. G. Germana, Anth. Fig. 345. Ovate, conical, 

 smooth, rather thin; spire conical, suture moderately im- 

 pressed ; whorls 6, flat, the last large and subangulate in the 

 middle; aperture large, rhombic, subangulate below. Ash 

 gray to dark brown, brownish within, with a white border. 

 Cahaioba River, Ala. 



This differs from gravida principally in the form of the aperture. 



254. G. variata, Lea. Fig. 346. Subfusiform, inflated, 

 smooth, somewhat thick ; spire short conical, suture well im- 

 pressed ; whorls 6, flattened above, the last very much inflated : 

 aperture large, ovate. Yellowish or purplish, sometimes band- 

 ed. Coosa River, Ala. 



255. G. ovalis, Lea. Figs. 347—349. Ovate, solid, striate : 

 spire short conical, suture much impressed ; whorls 6, well 

 rounded ; aperture oval, narrow. Yellow, banded, white with- 

 in. Coosa River, Ala. 



Not so broadly ovate nor so large as O. Iceia, Jay. Fig. 348 represents (?. 

 copiosa, Lea, and Fig. 349 Q. orbicula, Lea. 



