36 



19. G. Postellii, Lea. 



Melania Postellii, Lea, Proc. Acad. Nat. Sci. p. 166, July, 1858. Binney, 



Check List, No. 214. Brot, List, p. 34. 

 Mdania Portcllii, Lea, Reeve, Monog. Melania, sp. 427. 

 Uoniobasis Postellii, Lea, Jour. Acad. Nat. Sci., v. pt. 3, p. 343, t. 38, f. 208, 



March, 1863. Obs. ix. p. 165. 



20. G. a r a c h n o i d e a, Anthony. 



Melania arac/inoidea, Anthony, Ann. Lye. Nat. Hist. N. Y., vi, p. 95, t. 2, 



f. 14, March, 1854. Binney, Check List, No. 19. Brot, List, p. 34. 



Reeve, Monog. Melania, sp. 83. 

 Mdania inWrtrxta, Anthony,* Proc. Acad. Nat. Sci., p. 62, February, 1860. 



Binney, Check List, No. 151. Brot, List, p. 34. Reeve, Monog. Me- 



lani, sp. 296. 



21. G. Conrad i, Brot.f 

 Melania Conradi, Brot, List, p. 36. 



Melania sijmmetrica, Conrad, Proc. Acad. Nat. Sci., iv. p. 155, Feb., 1849. 

 Journ. Acad. Nat. Sci., i. pt. 4, p. 278, t. 38, f. 5, Jan., 1850. Binney, 

 Check List, No. 260. 



22. G. c ar ini f era, Lam. 



Melania cnrinifcra, Lamarck, Anim. sans Vert. Deshayes, Anim. sans 

 Vert., 2d edit., viii. p. 433. Wheatley, Cat. Shells U. S., p. 24. Bin- 

 ney, Check List, No. 43. Catlow, Conch. Nomenc, p. 185. Brot, List, 

 p. 36. Reeve, Monog. Melania. sp. 273. 



Melania hella,% Conrad, New Fresh-Water Shells, Appendix, p. 6, t. 9, f. 4, 

 1834. Binney, Check List, No. 29. Brot, List, p. 36. Reeve, Monog. 

 Melania, sp. 269. 



Melania peran(julata, Conrad, Proc. Acad. Nat. Sci., iv p. 154, Feb., 1849. 

 Jour. Acad. Nat. Sci., i. pt. 4, p. 278, t. 38, f. 6. Binney, Check List, 

 No. 199. Brot, List, p. 36. Reeve, Monog. Melania, sp. 285. 



Melania pcrcarinala, Conrad. Proc. Acad. Nat. Sci., iv. p. 155, Feb., 1849. 

 Jour. Acad. Nat. Sci., 2d ser., i. pt. 4, p. 278, t. 38, f. 10. Binney, 

 Check List, No. 200. Brot, List, p. 36. 



Melania nebulosa, Conrad, Proc. Acad. Nat. Sci., iv. p. 155, Feb., 1849. 

 Jour. Acad. Nat. Sci., i. pt. 4, p. 278, t. 38, f. 9. Binney, Check List, 

 No. 172. Brot, List, p. 36. 



Melania bella-crenata, Haldeman, Monog. Limniades, No. 4, p. 3 of cover, 

 Oct. 5, 1841. Jay, Cat., 4th ed., p. 273. Binney, Check List, No. 30. 

 Brot, List, p. 36. 



Mdania monilifera, Anthony, Jay, Cat., 4th ed., p. 474. 



C. Shell plicate. 



23. G. obes a, Anthony. 



Melania ohesa, Anthony, Reeve, Monog. Melania, sp. 469, May, 1861. Brot, 

 List, p. 33. 



24. G. blanda, Lea.§ 



Melania blanda, Lea, Proc. Acad. Nat. Sci., p. 122, 1861. 

 Goniobasis blanda, Lea, Jour. Acad. Nat. Sci., v. pt. 3, p. 242, t. 35, f. 44, 

 March, 1863. Obs. Ix, p. 64, t. 35, f. 44. 



* Half-grown shell. 



t Dr. Brot proposed the name Conradi for this Fpecies, as si/mmetrica is preoccupied by Piof. 

 Haldeman. I doubt whether it is distinct from G. c/irinifera, Lara. 



J That all the species here quoted are Byiionynis of carinifcra does not admit of douljt. Th9 

 species is rather a variable one in reppect of proportions and ornamentation. 



I The name of this species must be changed because preoccupied by Mr. t.ea himself. 



