LITHASIA. 



27 



SYNOPSIS OF SPECIES. 



A. Shell large^ ovate, inflated- 



1. L. FULiGiNOSA, Lea, Eeeve, sp. 401. 



2. L. FLORENTiANA, Lea. Not of Reeve, Anculotus, fig. 4. 



3. L. VExusTA, Lea. 



4. L. DILATATA, Lca. 



5. L. LMPEUiALis, Lea. 



B. Shell small, compact, oval-elliptical, thick. 



6. L. viTTATA, Lea. 



7. L. SiiowALTEKii, Lea, Reeve, Melania, fig. 421. 



8. L. NcrcLEOLA, Anthony, Reeve, Melania, flg. 348. 



9. L. OBOVATA, Saj', Reeve, Anculotus, fig. 21. L. Hildrethiana, Lea, 



L. undosa, Anthony, Reeve, Melania, fig. 447. L. rarinodosa, 

 Anthony (Manuscript), Reeve, Melania, fig. 268. L. consmigitinea, 

 Anthony, Reeve, Anculotus, fig. 2. 



C. Shell obliquely flattened. 



10. L. COMPACTA, Anthony, Reeve, Melania, fig. 343. 



11. L. NUCLEA, Lea, Reeve, Melania, flg. 423. 



L. solidix, Lea, non 



D. Shell subcylindrical. 



12. L. BREVis, Lea, Reeve, Melania, flg. 344. 



Reeve, Melania, flg. 454. 



13. L. FUSiFORMis, Lea. 



14. L. DowiJiEi, Lea. 



A. Shelllarge, ovate, inflated. 



1. L. fuliginosa, Lea. 



Melania fuUginosa, LEA, Pliilos. Proc. Philos. Trans., viii, p. 170, t. 5, f. 17. Obs., 

 iii, p. 8. DeKav, Moll. N. Y., p. 04. Troost, Cat. Wheatley. Cat. Shells 

 U. S-.,p. 25. BlXNEY, Cheek List, No. 113. Catlow, Conch. Nomenc, p. 186. 

 Brot, List, p. 40. Reeve, Monog. Melania. sp. 401. 



Leptoxis fuliginosa, Lea, Adams, Genera, i, p. 307. 



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

 thick, dark brown ; spire obtuse ; sutures impressed ; 

 whorls six, somewhat convex; afverture large, at the base 

 angular and channelled. 



Habitat.— 'Q\g Bigby Creek, Manry Co., Tenn. 



Diameter, -50; length, '85 of an incli. 



Observations. — In general form this species resembles 

 the M. Dntto7iiana (nobis), but difl'ers in being less elevated 

 in the spire, in beiug without tubercles, and of a very dark 

 color; the substance of the shell is disposed to be purple. The 

 epidermis Ls thick and very dark. Mr. Duttoi^i found it rare— Lea. 



Fig. 65. 



