38 AMERICAN JOURNAL 



195. G. interlineata, Anth. Fig. 258. Elongated, slen- 

 der, thin; spire elevated, suture moderately impressed; whorls 

 7 — 8, sub-convex, smooth ; aperture small, elliptical, slightly- 

 produced at base. Greyish horn-color, alternating with nar- 

 row, brown, longitudinal, hair-like lines. Christy Creek, Ind. 



196. G. Ohioensis, Lea. Fig. 259. Conical, smooth, 

 somewhat thin ; spire obtusely conical, sharp -pointed, carinate 

 at apex, suture very much impressed ; whorls 9, convex ; aper- 

 ture small, somewhat rounded. Horn-color, whitish within. 

 Yellow Springs, Ohio. 



197. G. brevispira, Anfh. Fig. 260. Conical, ovate, 

 smooth, rather solid ; Avhorls 4 — 5, convex ; aperture ovate. 

 Brownish-green, paler at the suture. O/tio. 



198. G. semicarinata, &af/. Figs. 261 — 270. Acutely 

 conical, rather thick, smooth; spire elevated, carinate towards 

 the apex, suture well impressed ; whorls 9, rather convex ; 

 aperture small, elliptical. Yellowish-green or reddish horn- 

 color, generally lighier at the suture, wdiitish within. Tenii., 

 Ky., Ohio, Iml, Ills. 



Fiffs. 261 and 262 represent G. semicarinata ; Fig. 263, O. Kirtlandiana, 

 Lea fFig. 264, O. inornata, Anth.; Fig. 263, O. hicolorata, Antli.; Fig. 266, 

 G. elaia^ Anth.; Fig. 267, G. varicom, Ward ; Fig. 268, G. anguMi.ynra, 

 and Fig. 269, G. Gromvenorii, Lea. Fig. 270, G. bahylonica, Lea, is a genie- 

 late monstrosity of this species. 



199. G. Haldemani, ^/7/'./?^. Fig. 271. Narrowly elonga- 

 ted; spire elevated, suture slightly impressed; whorls 9, 

 smooth, flat, the last sub-angulated at the periphery ; aperture 

 small, sub-rhomboidal. Light horn-color. Lake Erie, Lake 

 Gluimplain. 



200. G. curvilabris, AntJi. Fig. 272. Conical, smooth, 

 rather tliick; spire elevated, suture deeply impressed ; whorls 

 7 — 8, convex, cylindrical, constricted around the middle; aper- 

 ture irregularly oval, lip very much curved. Greenish horn- 

 color, Tenn. 



201. G. informis, T^ea. Fig. 273. Lengthened cylindri- 

 cal; spire elevated, suture moderately impressed ; whorls 6, 

 flatly convex, medially constricted; aperture sub-rhomboidal, 

 angulate below. Dark corneous. Louisville, Ky. 



202. G. vittatella, Lm. Fig. 274. Lengthened, sub- 

 cylindrical, smooth; spire elevated, apex sometimes carinate, 

 suture linear; whorls 8, planalate; aperture small, sub-rhom- 

 boidal. Dark brown, with a single dark band. Cumberland 

 Gap, E. Tenn. 



202. G. Alexandrensis, E^a. Fig. 275. Acutely coni- 

 cal, smooth, narrow, thin; spire elevated, suture moderately 

 impressed; whorls 7, somewhat convex; aperture small, trape- 

 zoidal, a little produced below. Dark horn-color, white with- 

 in. Alexandria, La. 



