22 AMERICAN JOURNAL 



56. G. suturalis, Said. Fig. 94. Conical, moderately 

 thick ; spire elevated, suture well impressed ; whorls 6, flat, 

 angled just above the suture, and on the periphery, the supe- 

 rior portion plicate, carina bordered by a raised line, which is 

 double on the body. Dark olivaceous, banded, white within. 

 Ohio f 



This species appears to be identical with G. mutabilis, but cannot be the 

 same if the locality is correct. 



57. G. mutabilis, Lea. Fig. 95. Conical, somewhat thick ; 

 spire conical, suture well impressed ; whorls 6, flattened, cari- 

 nate and striate, the first ones plicate ; aperture rhomboidal, 

 narrow below, columella twisted. Yellowish-green, with or 

 without four bands. Butts Co., Geo. 



58. G. Viennaensis, Lea. Fig. 95a. Sub-fusiform, rather 

 thin ; spire regularly conical, suture irregularly impressed ; 

 whorls 7, flattened, distantly folded, the last whorl large ; aper- 

 ture rather large, rhomboidal. Olivaceous, bluish white with- 

 in. Vienna, Dooly Co., Geo. 



59. G. Curreyana, Lea. Figs. 96, 97. Conical, rather 

 thick ; spire somewhat elevated, suture irregularly impressed ; 

 whorls 7, rather convex, all of them with few, sharp, curved 

 folds ; aperture small, angular below. Horn-color, not banded. 

 Barren River, Ky. 



60. G. COStifera, Said. Fig. 98. Lengthened, conical; 

 spire elevated, suture well impressed; whorls 8, slightly con- 

 vex, covered with moderate sized, low, rounded ribs, decussated 

 below the suture by spiral lines. Light horn-color. Senne- 

 pin, LUs. 



61. G. Deshayesiana, Lea. Figs. 99—101. Elongate 

 conical, thin; spire elevated, suture impressed; whorls 8, 

 somewhat convex, rather closely folded, and decussated by 

 spiral lines below the suture. Dark horn-color. Tenn. 



62. G. Abbevillensis, Lea. Fig. 102. Conical, rather 

 thick, shining; spire conical, suture linear; whorls 7, flatly 

 convex, the last large, those of the spire prominently folded, 

 the first few carinate and striate. Chestnut-color, somewhat 

 ochraceous within. Abbeville District, S. C. 



63. G. Dooly ensis, Lea. Fig. 103. Cylindrically conical, 

 thin; spire elevated, much drawn out, suture irregularly im- 

 pressed ; whorls 9, a little convex, closely folded ; aperture 

 very small, columella much twisted. Dark horn-color, or ash- 

 grey. Tenn. Vienna, Dooly Co., Geo. 



61. G. inconstans, Lea. Fig. 101. Sub-fusiform, rather 

 thin ; spire obtusely conical, suture impressed ; whorls 6, some- 

 what convex, folded above. Horn -color, olivaceous or dark 

 brown, sometimes banded, white or pale purple within. 

 Etowah River, Geo. 



