182 LAND AND FRESH-WATER SHELLS OF N. A. [PART IV. 



M. hlanda herein described. The aperture is about oue-tliird the 

 length of the shell. — Lea. 



52. G. blanda, Lea. 



Melanin blanda, Lea, Philos. Proc, ii, p. 13, Feb., 1841. Pliilos. Trans., viii, p. 79, 

 t. 6, f. 34. Obs., iii, p. 17. DeKav, Moll. N. Y., p. 97. Binney, Check List, 

 Ko. 3a. Troost, Cat. Shells, Tennessee. Wheatley, Cat. Shells, U. S., p. 24. 

 Catlow, Conch. Nomenc., p. 185. Brot, List, p. 35. 



Melasma blanda. Lea, Adams, Genera, i, p. 300. 



Description. — Shell folded, conical, rather thin, shining, horn-color; , 



spire rather elevated ; towards the apex, striate : sutures im- 

 rig.354. 1 ' ) 



pressed; whorls seven, rather flattened ; aperture small, ellip- 

 tical, angulated at the base, whitish. 

 Habitat. — Tennessee. 

 Diameter, -20 ; length, -69 of an inch. 



Observations. — A single specimen of this species was re- 

 ceived from Dr. Troost. The folds are obscure and the striae small. 

 The aperture is not quite one-third the length of the shell. — Lea. 



53. G. nitens. Lea. 



Melanin nitida. Lea, Philos. Proc. ii, p. 14, February, 1841. 



Melanin nitens. Lea, Philos. Trans., viii, p. 183, t. C, f. 40. Obs., iii, p. 20. DeKay", 

 Moll. N. Y., p. 98. BiNNEY, Check List, No. 178. Troost, Cat. Shells, Ten- 

 nessee. Wheatley, Cat. Shells, U. S., p. 2G. Catlow, Conch. Nomenc. p. 187; 

 Brot, List, p. 36. 



Description. — Shell folded, somewhat thick, dark brown ; ^'^•'^^* 

 spire obtuse ; sutures impressed ; whorls seven, somewhat 

 convex ; aperture small, elliptical, angular at the base, red- 

 dish within. 



Habitat. — Tennessee. 



Diameter, -30 ; length, '70 of an inch. 



Observations. — This is a shining, dark brown species, with 

 rather regular ribs on the superior whorls. The aperture is about 

 one-third the length of the shell. A single specimen only was re- 

 ceived. — Lea. 



This species very much resembles the last. Closely allied 

 to Deshayesiana, but without the subsutural stria3 which char- 

 acterize that species. 



