69 



Anculosa trilineata, Say, DeKay, Moll. N. Y., p. 100. Wheatley, Cat. Shells 



U. S., p. 27. Jay, Cat. Shells, 3d Edit., p. 62. 

 Anculotus trilineatus, Say, Jay, Cat., 4th Edit., p. 276. Reeve, Monog. An- 



culotus, t. 5, f. 41, b. 

 Leptoxis trilineata, Say, Haldeman, Monog. Leptoxis, p. 5, t. 5, f. . Bin- 



ney, Check List, No. 3S9. Brot, List, p. 26. 



Variety, 



Melania viri<iis,* Lea, Philos. Proc. ii. p. 12, Feb. 1841. Philos. Trans., 

 viii.p. 172, t. 5,f: 19. Obs. ii. p. 12. DeKay, Moll. N Y., p. 95. 

 Wheatley, Cat. Shells U. S., p. 27. Binney, Check List, No. 29^. Cat- 

 low, Conch. Nomenc,. p. 189. 



13. A. subglobosa, Say. 



Melania subgloboaa, Say, Journ. Acad. Nat. Sci. v. p. 128, Sept. 1825. Bin- 

 ney's edit. p. 116. Binney, Check List, No. 254. Catlow, Conch. No- 

 menc. p. 188. Jay, Cat. 3d Edit., p. 62. 



Anculotus subqlobosus, Sav, Conrad, New Fresh-Water Shells, p. 60, t. 8, f. 



14. DeKay, Moll. N. Y.,p. 103. Reeve, Monog. Anculotus, t. 1, f. 10. 

 Jay, Cat. 4th Edit., p. 276. 



Anculosa subglobosa, Say, Wheatley, Cat. Shells U. S., p. 28. 



Leptoxis subglobosa, Say, Haldeman, Monog. p. 3, t. 2, f. 4058. Chenu, 



Manuel de Conchyl. i. f. 204042. Biuney, Check List, No. 387. Brot, 



List, p. 25. 



Melania subglobosa, Lea, T'roost, Cat. Shells Tenn., p. 42. 

 Anculosa gibbosa, Philos. Proc. ii. p. 34, Apr. 1841. Philos. Trans, ix. p. 



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

 Anculotus gibbosus, Lea, Reeve, Monog. Anculotus, t. 1, f. 3. 

 Lfptoxis gibbosa, Lea, Binney, Check List, No. 361. Brot, List, p. 25. 

 Melania globula,^ Lea, Philos. Proc. ii. p. 12, Feb. 1841. Philos. Trans. 



viii. p. 174, t. 5, f. 22. Obs. iii. p. 12. DeKay, Moll. N Y., p. 95. 

 Troost, Cat. Shells, Tennessee. Wheatley, Cat. Shells U. S., p. 25. 

 Binney, Check List, No. 126. Catlow, Conch. Nomenc. p. 187. 



Variety. 



Anculosa tintinnabulumi, Lea, Philos. Proc. iv. p. 167, Aug. 1845. Philos. 



Trans, x. p. 67, t. 9, f. 51. Obs. iv. p. 67. 



Anculotus tintinnabulum, Lea, Reeve, Monog. Anculotus, t. 2, f. 13. a, b. ? 

 Mdania virgafa, Lea, Philos. Proc. ii. p. 13, Feb. 1841. Philos. Trans. 



viii. p. 175, t. 5, f. 25. Obs. iii. p. . DeKay, Moll. N. Y., p. 95. 



Troost, Cat. Shells Tenn. Binney, Check List, No. 290. Catlow, 



Conch. Nomenc. p. 189. Wheatley, Cat. Shells U. S., p. 27. 



14. A. praerosa, Say. 



Melania prcerosa, Say, Jour. Acad. Nat. Sci. ii. p. 177, Jan. 1824. Binney's 

 Edit., p. 70. Catlow, Conch. Nomenc. p. 188. Sowerby, Conch. Man. 

 f. 314. 



* In treating viridis as a synonym of trilineata, I agree with the opinions expressed by Messrs. 

 Ilaldeinan, Brot, Binney and Anthony. The two former gentlemen, together with Dr. Jay, con- 

 sider cnstatu.i, Anthony, and occidentalis, Lea, as synonyms also. In this opinion I cannot coin- 

 cide. The two species appear to me to be well separated by the costse of Mr. Anthony's species, 

 and the uniformly smooth surface of trilinfatus. Mr. Reeve's figure of trilinr.atus is very poor ; 

 the bands are so represented as to appear like ribs. 



It is by no means certain that trilineata is an Anculosa. Its general appearance suggests affini- 

 ties with the Amnicnlid/f. to which family several small species, hitherto considered to be Ancu 

 losee, have been recently removed. It differs from all the Amnicolne, however, in its colored bands. 



Mr. Lea's If. riridis is the Var. B. of Mr. Say's description of trilineata. 



t Juvenile shell. 



J Distinguished by possessing three brown bands or rows of maculations. It is a beautiful 

 variety. 



g Young shell of var. tintinnabulum. 



