70 



Anculotus prcerosus, Say, Conrad, New Fresh-Water Shells, p. 59, t. 8, f. 13. 



Jay, Cat. 4th Edit., p. 276. Reeve, Monog. Anculotus, t. 2, f. 15, 16. 

 Anculotus pnem'jrsa, Say, Woodward, Manuel, t. 8, f. 28. 

 Anculosa prcerosa, Say, Ravenel, Cat. p. 11. Wheatley, Cat. Shells U. S., 



p. 28. Anthony, List, 1st and 2nd Edits. Kirtland, Rep. Zool. Ohio, 



p. 174. DeKay, Moll. N. Y., p. 103. 

 Leptoxis prasrosa, Say, Haldeman, Monog. Lept. p. 2, t. 1, f. 118. Cheuu, 



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



p. 25. 

 Melania anyulosa*, Menke, Syn. Meth., 1st Edit., p. SI, 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 ovularis, 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. 



Aniin. 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 Cincinnatiensis, Lea. DeKay, Moll. N. Y., p. 95. Troost, Cat. 



Shells Tenn. 

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



15. A. c r a s s 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. t ae n i a t a, $ Conrad, 



Anculotus tceniatus, 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 taniata, Conrad, Wheatley, Cat. Shells U. S., p. 28. 



Leptoxis tceniata, 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 Troostiana, 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, Haldemau, Monog. Leptoxis, p. 4, t. 3, f. 81. 



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



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

 Haldeman and Anthony long ago decided. 



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

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

 J Undoubtedly the quite young shell of prserosa. 



^Intermediate in form between rubiginosa and prserosa and distinguished by its elongated body 

 whorl, concavely flattened around its upper half. 



I) Young Shell. 



