31 AMERICAN JOURNAL 



162. G. bulbosa, Gld. Fig. 217. Ovately conical, rather 

 thin; spire obtuse, with well impressed suture; whorls 5 — 6, 

 (eroded) inflated, very convex; aperture ovately rounded. 

 Brownish, shining, without bands. Columbia River, Oregon. 



May be the same as O. Newberryi, the only difference being in the bands. 



163. G. Lithasioides, Lea. Fig.218. Sub-fusiform, smooth ; 

 spire conoidal, suture impressed ; whorls 6, flattened, sub-con- 

 stricted; aperture rather large, rhomboidal. Corneous, with- 

 out bands. Ohio. 



164. G. infantula, Lea. Fig. 219. Obtusely fusiform, 

 moderately thick; spire short, with well impressed suture; 

 whorls 5, sub-convex, a little flattened above; aperture large, 

 ovate, columella thickened and twisted. Dark horn-color, ob- 

 scurely banded ; white and banded within. Louisville, Ky. 



165. G. Louisvillensis, Lea. Fig. 220. Obtusely fusi- 

 form, smooth; spire short, conical, suture irregularly im- 

 pressed ; whorls 5, flatly convex ; aperture rather large, long 

 elliptical. Dark brown, not banded, white within. Louisville, 



Ky. 

 It is very doubtful whether this is distinct from G. infantula. 



h. Smooth, elevated species. 



166. G. pulchella, Anth. Fig. 221. Conically elongated, 

 thin; spire elevated, suture well impressed; whorls 7, convex; 

 aperture rather large, elongately ovate. Brownish horn-color, 

 with two brown bands. Ohio. 



More elevated than M. depygis, and lighter color and more convex than 

 M. gracilior. 



167. G. cinerea, Lea. Fig. 222. Conically elongated, 

 thin, smooth, bright ; spire elevated, sharp-pointed, suture very 

 much impressed ; whorls 8, convex, the last slopingly convex; 

 aperture rather large, sub- rhomboidal, columella bent in, 

 slightly thickened. Ash-gray, double-banded, bluish-white 

 within, columella purplish. 8. Car. 



Doubtfully distinct from pulchella. The description is from a single 

 specimen, and the habitat may be an error. 



168. G. gracilior, Anth. Fig. 223. Conical, elevated, 

 smooth, rather thick ; spire elevated conical, suture slightly 

 impressed; whorls 8, the upper ones flattened, the last sloping- 

 ly convex, peculiarly constricted around the superior half; 

 aperture small, pyriform, columella arcuate, forming a sinus 

 of the margin below. Dark brown, with two broad }^ellowish- 

 green bands on the periphery, the sutural line pale, banded 

 within, columella dark brown. Congress and Springfield Lakes, 

 Stark Co., Ohio. 



