38 



19. G. Postellii, Lea. 



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



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

 Melania Porteliii, Lea, Reeve, Monog. Melania, sp. 427. 

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



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



20. G. arachnoidea, Anthony. 



Melania aracknoidea, 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. 

 Melania intertexta, 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. Conradi, Brot.f 

 Melania Conradi, Brot, List, p. 36. 



Melania symmetrica, 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 a r ini f era, Lam. 



Melania carinifera, 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. 48. Catlow, Conch. Nomenc., p. 185. Brot, List, 

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



Melania bella,% 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 perangulata, 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 pcrcarinata, 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. 



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



C. Shell plicate. 



23. G. obes a, Anthony. 



Melania obesa, 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. 



f Dr. Brot proposed the name Conradi for this species, as symmetrica is preoccupied by Prof. 

 Haldeman. I doubt whether it is distinct from G. carinifera, Lam. 



J That all the species here quoted are synonyms of carinifera does not admit of doubt. The 

 epecies is rather a variable one in respect of proportions and ornamentation. 



\ The name of this species must be changed because preoccupiwd by Mr. Lea himself. 



