LITHASIA. 33 



gion of Lower Tennessee and Alabama. It has a very sparing devel- 

 opmcnt of the spire, and a remarkable flattening about the middle of 

 the last whorl. — Anthony. 



9. Ii. obovata, Say. 



Melanin obovata. Sat, New Harmony Dissem., Xo. 18, p. 276, Sept. 9, 1829; Reprint, 

 p. 18, 1840. BiNNEY'S Reprint, )). U3. DeKat, Moll. N. Y., p. 98. Wheatlky", 

 Cut. Shells U. S., p. 2G. Catlow. Conch. Nomenc, p. 188. Jay, Cat., 2d edit., 

 p. 45. 



Ancidotus obovatus, Say, Jay, Cat., 4th edit., p. 276. Reeve, Monog. Mel., f. 21. 



Leptoxis obovata, Say, Hald., Monog. Lept., p. 2, t. 1, f. 27-34. Binney, Check 

 Li.«t, No. 374. Brot, List, p. 25. 



Lithagia obovata. Say, Chenu, Manuel, i, f. 2056-8. Adams, Genera, i, 308. 



Anculosa obovata. Say, Wheatley, Cat. SheUs U. S., p. 26. 



Mdania Hildrethiana, Lea, Philos. Proc. Philos. Trans., viii, p. 164, t. 5, f. 1. 

 Obs., iii, p. 2, t. 5, f. 1. DeKay, Moll. N. Y., p. 92. Wheatley. Cat. Shells 

 U. S., p. 25. BiNTCET, Check List, No. 138. Catlow, Couch., Nonieuc., p. 187. 



Lepto.vis Hildrethiana, Lea, ADAMS, Geuera, i, p. 307. 



Melania undosa, AXTHO.VT, Ann. N. Y., Lye, vi, p. 124, t. 3, f. 25. March, 1854. 

 BiN'N'EY, Check List, No. 280. Brot, List, p. 39. Reeve, Monog. Mel., sp. 447. 



Melanin rarinodosa, Anthony, MSS., REEVE, Monog., sp. 268. Bkot, Lit^t, p. 39. 



Mdania consanguinea, ANTHONY', Ann. N. Y. Lye, vi, p. 125, t. 3, f. 20, March, 1854. 

 BiXNEY, Check List, No. 66. Brot. List, p. 39. 



Anadotics consanguineus, Anthony, Reeve, Monog. Anc, sp. 2. 



Description. — Shell subobovate, dark brown or blackish, volutions 



nearly five; spirearemarkably rounded, short; body-whorl with a very 



obtuse, slightly indented baud or undulation, a little above ^. „, 

 ' ° •' Fig. 74. 



the middle; aperture more than twice the length of the 

 spire, narrow ; labium polished, with a callus above ; 

 labrum not projecting near the base, subrectilinear from 

 the shoulder to the basal curve, very convex at the 

 shoulder; base rounded and without indentation. 



Animal, foot rounded, rather longer than wide, equally 

 rounded before and buhiud ; above yellowish-white, lineated with 

 black lines. 



Habitat. — Kentucky River, and some other tributaries of the Ohio. 



Length, three-fourths; breadth, nearly half an inch. 



Var. A. Indeuted band almost obsolete. 



Observations. — The spire, and even a part of the body- whorl in all 

 old shells, are sometimes remarkably eroded, as in the 31. (A7iculotris) 

 prcerosa, nob., and iudeed, the general appearance is such, that at a 

 little distance, and without particular observation, it might be readily 

 mistaken for that shell, but the form is less globular, and the aperture 

 is altogether different. I fouud it very abundant in Kentucky River in 



L. F. W. S. IV. 3 



