222 



LAND AND KRESri-WATKIt SHKT.T.S OF N. A. [PAUT IV. 



Fig. 441. 



tricose, longitudinally wrinkle striated, last whorl irregularly trans- 

 versely wrinkled; aperture ovate, effused at the base. 

 Habitat. — Alabama. 



Observations — An obese, cinnamon-colored shell, encir- 

 cled by a narrow, chestnut band at the sutures. The sur- 

 face is sculptured with longitudinal, close-set striae and 

 transverse, interrupted, ieel-like wrinkles.— i?eez'e. 



Goniobasis intercedens. — Shell smooth, fusiform, rather 

 thin, yellow, boney-bright without bands; spire conoldal, sharp- 

 pointed, carinate at the apex; sutures linear; whorls eight, flattened, 

 varicose ; aperture rather large, rhomboidal, whitish within ; outer lip 

 acute, scarcely sinuous ; columella slightly bent in, somewhat thick- 

 ened, nearly straight below. 

 Habitat. — Cahavvba River, Alabama; E. R. Showalter, M.D. 

 Diameter, "30; length, '69 of an inch. 



Observations. — This species is very closely allied to Melania (Goni- 

 obasis) mellea and Bridgesiana, herein described. It is the 

 same color, but may be distinguished by its being more slen- 

 der and having a higher spire. It has also a less twisted 

 columella. In the interior there is a slight disposition to 

 yellowness. Neither of the two specimens before have any 

 appeai-auce of bands. The larger of the two is not complete 

 on the outer lip, but the smaller one is perfectly so, and shows a dis- 

 position to thickening on the inner edge. The aperture is about one- 

 half of the length of the shell. — Lea. 



Fig. 442. 



110. G, Bridgesiana, Lea. 



Goniohnsis Bridgesiana, LEA, Proc. Acad. Nat. ScL, p. 2G5, 1802. Jour. Aoad. Nat. 

 Sci., V, pt. 3, p. 305, t. 37, f. 142, March, 1SG3. Obs., ix, p. 173, t. 37, f. 142. 



Description — Shell smooth, fusiform, somewhat inflated, rather thin. 

 Fig. 443. honey-yellow, without bauds ; spire obtusely conical, carinate 

 at the apex; sutures linear; whorls about seven, flattened; 

 aperture large, subrhomboidal, whitish within ; outer lip 

 acute, scarcely sinuous ; columella somewhat bent in, thick- 

 ened above and below and slightly twisted. 

 Habitat. — Cahawba Eiver, Alabama; E. R. Showalter, M.D. 

 Diameter, -40; length, -83 of an inch. 



Observations. — A single specimen only was received from Dr. E. R. 

 Showalter. It was considered by him to be Melania gravida, Anth., 



