20 AMERICAN JOURNAL 



37. G. interrupta, ^aM. Figs. 67— 72. Fusiform, ratlier 

 thick, inflated; spire obtusely conical, suture impressed ; whorls 

 5, slightly convex, either folded, striate or granulate. Yel- 

 lowish-olive, with or without bauds. Tenn. Cherokee Co., 



N. C. 



Fig. 71 is Chrystyi^ Lea; Fig. 72 is O. insiaMlis, Lea. 



38. G. crispa, Lea. Fig. 73. Fusiform, rather thick; 

 spire obtuse, suture much impressed; whorls 6, convex ; folded 

 and closely transversely striate or crispate. Yellowish, not 

 banded, whitish within. Florence, Ala. 



39. G. formosa, Conr. Figs. 74, 75. Sub-fusiform, rather 

 thin; spire elevated, suture well impressed; whorls 6, convex, 

 with distant robust rounded ribs ; two approximate lines re- 

 volve below the suture, and the base is profoundly striated. 

 Olivaceous, with distant brown bands. Tenn. N. Ala. 



Fig. 75 is G. ornntella, Lea. 



40. G. mediocris, Lea. Fig. 76. Sub-fusiform, rather 

 thin ; spire conical, suture irregularly impressed ; whorls 6, 

 flattened, distantly folded. Ash-color, shining, banded. Tenn. 



Narrower, less folded, and differently colored from O. formosa. 



42. G. Duttonii, Tjea. Fig. 77. Conoidal, thick ; spire 

 conoidal, suture irregularly impressed ; whorls 7, rapidly in- 

 creasing, somewhat convex, with small close folds. Pale red- 

 dish-yellow, not banded, or with two distant broad bands, 

 white and banded within. Maury Co., Tenn. Grayson Co., 

 Ky. 



43. G. laqueata, Say. Figs. 78 — 81. Conoidal, mode- 

 rately thick; spire elevated, apex acute, suture well impressed; 

 whorls 7, convex, with regular, somewhat curved ribs, be- 

 coming obsolete towards the middle of the body whorl ; aper- 

 ture large, columella a little curved at the base, and produced. 

 Yellowish, with generally two brown bands. Tenn. 



Fig. 81 is O. monozonalis, Lea, a young individual. 



44. G, Pybasii, Lea. Fig. 82, Elevated, thin ; spire at- 

 tenuate, sharp-pointed, suture impressed ; whorls 7, flatly con- 

 vex, distantly folded, folds scarcely apparent on body whorl. 

 Yellowish, with generally 4 bands, the two middle ones ap- 

 proximate. Tuscwnibia, Ala. 



45. G. induta, Lea. Fig. 83. Elevated conical, rather 

 thin, polished; spire conoidal, sharp-pointed, suture much im- 

 pressed ; whorls 8, flatly convex, with erect folds, becoming 

 obsolete towards the middle of the body whorl ; aperture 

 small, a little narrowed at base. Dark brown, 4-banded. 

 Vienna, Dooly Co., Geo. 



