318 PROCEEDINGS OF THE ACADEMY OP 



A. Body whorl encircled above the aperture by tioo roios of tubercles, of which 

 the inferior one is most prominent . 



5. A. Jay ana, Lea. 



Melania Jayana, Philos. Proc. ii. p. 83. Philos. Trans, ix., p. 20. Obs. iv., 

 p. 20. Wheatley, Cat. Shells U. S. p. 25. Jay, Cat. Shells, 4th Edit., 

 p. 274. Binney, Check List, No. 154. 



Io Jayana, Lea, Brot. List, p. 29. 



Melania robulina, Anthony, Bost. Proc. iii., p. 363, Dec. 1850. Binney, 

 Check List, No. 230. 



Io robulina, Anthony, Reeve, Monog. Io, species 15. 



C. Body whorl icith a central row of tubercles. 



6. A. rota, Reeve. 



Io rota, Reeve, Monog. Io, species 13, April, 1860. Brot, List, p. 29. 



7. A. armigera, Say. 



Melania armigera, Say, Jour. Acad. Nat. Sci., 1st ser., ii. p. 178, Jan. 1821. 



Binney's Reprint, p. 71. Binney, Check List No. 21. Dekay, Moll. 



N. Y., p. 93. Jay, Cat. 4th Edit., p. 272. Troost. Cat. Wheatley, Cat. 



Shells, U. S., p. 24. Catlow, Conch. Nomenc. p. 185. Hanley, Conch. 



Misc. Melania, t. 7, f, 60. 

 Io armigera, Say, Reeve, Monog. Io, fig. 11. 



8. A. Duttoniana, Lea. 



Melania Duttoniana, Lea, Philos. Proc, ii. p. 15. Philos. Trans., viii. p. 189, 

 t. 6, f. 54. Obs. iii., p. 26. Catlow, Conch. Nomenc. p. It6. Binney, 

 Check List, No. 92. Jay, Cat. 4th Edit., p. 273. 



Io Duttoniana, Lea, Reeve, Monog. Io, fig. 9. Brot. List, p. 29. 



Iofasciolata, Reeve, Monog. Io, fig. 14. 



9. A. stygia, Say. 



Melania sty gia, Say, New Harmony Dissem., p. 261, Aug. 28, 1829. Reprint, 

 p. 17. Binney's Reprint, p. 142. Binney, Check List, No. 251. 

 Wheatley, Cat. Shells U. S., p. 27. Jay, Cat. 4th Edit., p. 275. Dekay, 

 Moll. N. Y., p. 93, Reeve, Monog. Mel. sp. 400. Brot. List, p. 40. 



Melania tuberculata, Lea, Philos. Trans, iv., p. 101 t. 15, f. 31. Obs. i., p. 

 111. Dekay, Moll. N. Y., p. 93. Wheatley, Cat. Shells. U. S., p. 27. 

 Binney, Check List, No. 277. Jay, Cat., 4th Edit., p. 275. Catlow, 

 Conch. Nomenc, p. 189. 



Juga tuberculata, Lea, Chenu, Man. Conchyl. i. f. 2017. 



Melania Spixiana, Lea, Philos. Trans, vi. p. 93. Obs., v. p. 93. 



Melania nodata, Reeve, Monog. Mel. fig. 422. 



10. A. funiculata, Reeve. 



Io funiculata, Reeve, Monog. Io, t. 2, f. 8. April, 1860. Brot, List, p. 29. 



11. A. lima, Conrad. 



Melania lima, Conrad, New Fresh Water Shells, p. 54, t. 8 P f. 8, 1834. 

 Chenu, Reprint. Dekay, Moll., N. Y. p. 97. Wheatley, Cat. Shells 

 U. S., p. 26. Jay, Cat. 4th Edit., p. 274. Catlow, Conch. Nomenc. 

 p. 187. Brot, List, p. 33. 



Anculotus lima, Conrad, Reeve, Monog. Anc. t. 1, f. 1. 



Lithasia lima, Conrad, Binney, Check List, No. 300. 



12. A. verrucosa, Rafinesque. 



Pleurocera verrucosa, Rafinesque, Annals of Nature, p. 11, 1820. 



Melania nupera, Say, New Harmony Dissem. p. 260. Amer. Conch. Pt. 1. 



t. 8, f. 1, 2. Binney's Reprint, p. 157, t. 8. Chenu's Reprint p. 16. 



t. 2, f. 3. Dekay, Moll. N. Y. p. 97. Wheatley, Cat. Shells. U. S. p. 26. 



Brot. List, p. 40. Jay, Cat. Shells, 4th Edit. p. 274. 



[Nov. 



