290 LAXD AND FKESU-WATER SHELLS OF N. A. [PART IV. 



resembles M. blanda, described herein. Most of them arc without 

 bands ; some, however, are finely banded, and all are mutilated at 

 the apex. I dedicate this species to my lamented friend, to whose 

 kindness I owe so many beautiful and interesting objects in the nat- 

 ural history and geology of Alabama. — Lea. 



190. G. rufescens, Lea. 



Melaniaru/a, "Lea, ThiloB. Proc, ii, p. 12, Feb., 1841. Philos. Trans., viii, p. lf>7, 

 t. 5, f. 8. Obs., iii, p. 5. TuoosT, Cat. Shells Tennessee. Wheatley, Cat. 

 Shells U. S., p. 26. Catlow, Conch. Nomenc, p. 188. 



Melania rxifescens, Lea, DeKay, Moll. N. Y., p. 93. Jay', Cat., 4th edit., p. 274. 

 BiNNEV, Check List, No. 233. Brot, List, p. 37. 



Potadoma rufescens, Lea, Adams, Genera, i, p. 299. 



Description.— S>\ie\\ smooth, turreted, rather thin; shining, dark 

 red ; spire elevated ; sutui-es impressed ; whorls convex, towards the 

 Tig. 561. apex carinate ; aperture small, elliptical, subangular below, 

 within purplish. 



Habitat. — Mamma's Creek, Tennessee; S. M. Edgar. 

 Diameter, -30; length, -85 of an inch. 



Observations. — In form this species resembles 31. teres, 

 herein described. It differs in the color being red, and in 

 being carinate on the superior whorls. The most perfect specimen 

 In my possession has the first few whorls broken ; I should suppose 

 a perfect one would have eight whorls, and the aperture be one-fourth 

 the length of the shell. — Lea. 



This species is longer, narrower and darlver colored than 

 Tennessee specimens of the preceding species. 



I. Striate species, spire elevated. 

 191. G. Virginica, G.melin. 



Buccinum Virginica, Gmelin, Syst. Nat. 3.505. Green, Trans. Alb. Inst., i, p. 135 

 Wood, Index Test., t. 24, f. 154. Schroter, Einleit., i, p. 414, 1783. Martini, 

 Berlin Mag., iv, p. 348, t, 10, f. 48. SciiKEinEUS, Einleit. Conchyl., t. 113, f. 7. 



Paludina Virginica, Say, Nicholson's Encyc, iii, t. 2, f. 4. 



MeLania Virginica, Say, Am. Conch., pt. 5, t. 47, f. 2. App. to Long's Exped.. iij 

 p. 205. BiNNEY'8edit.,p. 131 .ind 190. Binney, Check List, No. 291. CatloW 

 Conch. Nomenc, p. 189. Philippi, Neiier Conchylien, Melania, t. 2, f. 13' 

 IIiLDRETH. Am. Jonr. Science, xxxi, p. 53. Sager, Kept. Zool. Mich., p. 15| 

 Conrad, Am. Jour. Science, N. S., 1, p. 407. Haldeman, Rupp's Ilitt. L:m. 



