102 PROCEEDINGS OF THE ACADEMY OP 



Leptoxis preerosa, Say, Haldeman, Monog. Lept. p. 2, t. 1, f. 118. Chenu, 



Manuel, i. f. 203034. Binney, Check List, No. 380. Brot, List, 



p. 25. 

 Melanin angulosa*, Menke, Syn. Meth., 1st Edit., p. 81, 1828. 2nd Edit. 



p. 135, 1830. Binney, Check List, No. 15. 

 Melania cruentata, Menke, Syn. Meth., 1st Edit., p. 80, 1828. 2nd Edit. 



p. 134, 1830. 

 Melonia ovular is, Menke, Syn. Meth., 1st Edit., p. 80. 2nd Edit. p. 134. 



Binney, Check List, No. 194. 

 Melanopsis neritiformis, Deshayes, Encyc. Meth. Vers. ii. p. 438, No. 14. 



Anini. Sans. Vert., 2nd Edit., viii. p. 492, 1838. 

 Anculotus angulatus,\ Conrad, New Fresh- Water Shells, p. 60, t. 8, f. 15, 



1834. Dekay, Moll. N. Y., p. 102. Wheatley, Cat. Shells U. S., p. 27. 



Reeve, Monog. Anculotus, t. 6, f. 51. Jay, Cat. Shells, 4th Edit., p. 



276. 

 Leptoxis angulata, Conrad, Binney, Check List, No. 340. 

 Melania Cincinnaliensis%, Lea, Philos. Proc. i. p. 66, Dec. 1838. Philos. 



Trans, viii. p. 190, t. 6, f. 58. Obs. iii. p. 28. Jay, Cat. 4th Edit., p. 



273. Catlow, Conch. Nomenc. p. 186. 

 Anculotus Oincinnatiensis, Lea. DeKay, Moll. N. Y., p. 95. T roost, Cat. 



Shells Tenn. 

 Leptoxis Cincinnaliensis, Lea, Binney, Check List, No. 346. 



15. A. crass a, Haldeman. 



Anculosa crassa, Haldeman, Monog. Limniades, No. 4, p. 3 of Cover, Oct. 



5, 1841. 

 Anculotus crassus, Haldeman, Jay, Cat., 4th Edit., p. 276. Reeve, Monog. 



Anculotus, t. 2, f. 14. 

 Leptoxis crassa, Haldeman, Monog. Lept. p. 2, t. 1, f. 19 23. Binney, 



Check List, No. 350. Brot, List, p. 24. 



16. A. tseniata,| Conrad, 



Anculotus tceniat us, Conrad, New Fresh-Water Shells, p. 63, 1834. DeKay, 

 Moll. N. Y., p. 103. Jay, Cat., 4th Edit., p. 276. Reeve, Monog. An- 

 culotus, t. 6, f. 50, non t. 2, f. 15. 



Anculosa teeniata, Conrad, Wheatley, Cat. Shells U. S., p. 28. 



Leptoxis twniata, Conrad, Haldeman, Monog. Leptoxis, t. 3, f. 71 73. Bin- 

 ney, Check List, No. 388. Brot, List, p. 26. 



Anculosa cooscensis, || Lea, Proc. Acad, Nat. Sci. p. 54,1861. Jour. Acad. 

 Nat. Sci. v. pt.3, p. 257, t. 30, f. 65, Mar. 1863. Obs. ix. p. 76. 



17. A. T r o o s t i a n a, Lea, 



Anculosa Troostiaaa, Lea, Philos. Proc. ii. p. 34. Philos. Trans, ix. p. 15. 



Obs. iv. p. 15. Wheatley, Cat. Shells U. S., p. 28. 

 Anculotus Troostianus, Lea, Reeve, Monog. Anculotus, t. 4, f. 30. 

 Leptoxis Troostiana, Lea, Haldeman, Monog. Leptoxis, p. 4, t. 3, f. 81. 



Binney, Check List, No. 391. Brot, List, p. 26. 



18. A. p i n g u i s, Lea. 



Melania pinguis, Pbilos. Trans, x. p. 301, t. 30, f. 11. Obs. v. p. 57. Bin- 

 ney, Clieck List, No. 206. Brot, List, p. 40. Reeve, Monog. Melania, 

 sp. 355. 



# The various descriptions by Menke and Deshayes all certainly belong to this species, as Messrs. 

 Haldeman anil Anthony long ago decided. 



+ This is a half grown shell which still retains the angle on the periphery in Alabama, while, in 

 specimens of uure northern location, it is only visible in the quite young. 

 J Undoubtedly the quire young shell ot jnwosa. 



g Intermediate in form between rubiginosa and prsurom and distinguished by its elongated body 

 whorl, concavely flattened around its upper half. 

 U Young shell. 



[April, 



