264 LAND AND FRESH-WATER SHELLS OF N. A. [pART IV. 



impressed; whorls flattened; aperture rather large, subrhomboidal, 

 ■vvhitish within ; outer lip acute, slightly sinuous ; columella somewhat 

 bent in. 



Operculum ovate, dark brown witli the polar point near the edge 

 above the basal margin. 

 Habitat. — Coosa Eiver; "W. Spillraan, M.D. 

 Diameter, -43 of an inch; length, 1-07 inches. 



Observations. — This species is allied to Melania (Goniobasis) grata, 

 Fig. 507. Anth., which puts on many phases. It may be at once dis- 

 tinguished, however, by grata being more pointed, having 

 a more yellow epidermis and narrower bands. Two out 

 of ten specimens before me have a greenish epidermis and 

 are without bands. One specimen has a purplish interior. 

 II The prevailing character of the bands is, two being proxi- 

 mate in the middle, and two, one above the other below, 

 being more removed. The two middle ones are sometimes closed, 

 forming a single broad band. The aperture is more than one-third 

 the length of the shell. — Lea. 



163. G. tenera, Anthony. 



Melania tenera, Anthony, Reeve, Monog. Melania, sp. 407, Apr., 1861. Brot, List, 

 p. 39. 



Description. — Shell elongately ovate, subcyliudricul, 3'ellowish-olive, 

 encircled with narrow, distant, red-brown bands ; whorls slopingly 

 convex, the first few keeled next the suture ; aperture ovate, narrowly 

 effused at the base ; columella thinly reflected, rather produced. 



Habitat. — Alabama, United States. 



Observations. — Chiefly distinguished by its encircling pattern of red- 

 brown linear bands upon a pale yellowish-olive ground. — Anthony. 



I at first thought this to be the same as G. Bnwibyi, Lea, 

 but the latter species grows larger and is of a narrower form. 



164. G. Brumbyi, Lea. 



Goniobasis Brumbyi, Lea, Proc. Acad. Nat. Soi., p. 26.'$, lSfi2. Jour. Acad. Nat. Sci., 

 V, pt. 3, p. 290, t. 37, f. 127, March, 1803. Obs., ix, p. 118. 



Description. — Shell smooth, attenuate, rather thin, ash-gray, four- 

 banded; spire drawn out, cariuate at the apex; sutures very much 



