39 



25. G. substricta, HaUleraan.* 



Melania substricta, Haldeman, Monog. Limniades, vii. p. 4 of cover, Jany., 

 1844. Wbeatley, Cat. Shells U. S., p. 27. Binney, Check List, No. 

 25b'. Biot, List, p. 36. 



26. G. aequalls, Haldeman. f 



Melania ivqualis, Haldeman, Monof^. Limniades, No. 4, p. 3 of cover, Oct. !J, 

 1841. Jay, Cat , 4th ed., p. 272. Binney, Check List, No. 7. 



27. G. s e m i g r a d a t a. Reeve. 



Malania semigraclata, Reeve, Monog. Melania, sp. 472, May, 1861. Brot, 

 List, p. 33. 



28. G. carinocost ata,J Lea. 



Melania carinocostata, Lea, Philos. I'roc, iv. p. IQf", 1845. Philos. Trans., 



X. p. 62, t. 9, f. 40. Obs. iv. p. 62. Binney, Check List, No. 49. Brot, 



List, p. 35, Reeve, Monog. Melania, sp. 333. 

 (loniohasis sirenua, Lea, Proc. Acad. Nat. Sci., p. 267, 1862. Jour. Acad. 



Nat. Sci., V. pt. 3, p. 316, t. 37, f. 161, March, 1863. Obs. ix. p. 138. 

 Goniohasis Lcidyana, Lea, Proc. Acad. Nat. Sci., p. 268, 1862. Jour. 



Acad. Nat. Sci., v. pt. 3, p. 322, t. 38, f. 173, March, 1863. Obs. ix. 



p. 144. 

 Melania scabrella, Anthony, Reeve, Monog. Melania, sp. 388. 

 Melania scabriuscula, Brot, List, p. 36. 



29. G. Lecontiana,§ Lea. 



Melania Lecontiana, Lea, Philos. Proc, ii. p. 13, Feb. 1841. Philos. Trans., 

 viii. p. 177, t. 5, f. 29. Dekay, Moll. N. York, p. 96. Wheatley, Cat. 

 Shells U. S., p. 26. Brot, List, p. 35. Jay, Cat., 4th edit., p. 274. 

 Binney, Check List, No. 160. Catlow, Conch. Nomenc, p. 187. 



Melasma Lecontiana, Lea, Chenu, Man. Conchyl., i. f. 2002. 



30. G. c a d u s, Lea. || 



Go7iiobasis cadus, Lea, Proc. Acad. Nat. Sci., p. 272, 1862. Jour. Acad. 

 Nat. Sci., V. pt. 3, p. 345, t. 38, f. 211, March, 1863. Obs. ix. p. 167. 



31. G. b t u s a, Lea.^ 



Melania obtiisa, Lea, Philos. Proc, ii. p. 13, Feb., 1841. Philos. Trans., 

 viii. p. 176, t. 5, f. 28. Obs. iii. p. 14. Dekay, Moll. New York, p. 

 96. Binnev, Check List, No. 183. Troost, Cat. Shells Tennessee. 

 Wheatley, "Cat. Shells U. S., p. 26. Catlow, Conch. Nomenc, p. 188. 

 Brot, List, p. 59. 



32. G. a m o e n a, Lea. 



Goniobasis amcena, Lea, Proc. Acad. Nat. Sci., p. 268, 1862. Jour. Acad. 

 Nat. Sci., V. pt. 3, p. 323, t. 38, f. 175, March, 1863. Obs. ix. p. 145, 

 t. 38, f. 175. 



33. G. T u om e y i, Lea. 



Goniobasis Tuoinfyi, Lea, Proc. Acad. Nat. Sci., p. 266, 1862. Jour. Acad. 

 Nat. Sci., V. pt. 3, p. 311, t. 37, f. 153, March, 1863. Obs. ix. p. 133. 



* Somewhat like gracilis, Lea, but ia a stouter, more iionderous species. 



f Allied ti) ccirinoroxf.ata, Lea, but in that species the plicas are terminated by an acute angle 

 or rib on the body whorl and the spire is angled or cariuate. 



X A very variable species. The Af. scabrella of Anthony i.s a half-grown shell; in which state 

 the pllra3 and carinoe are more distinct than in the adult frrm. Scab7-ella_bemp; preocrupit'd by 

 an European author, M. Brot changed the name to scahrivscitla. 



2 Mr. Keeve's figure 40-1: does not represent this speciea ; it is nearer to decorata, Anthony. This 

 shell is closely allied to carinmoslata and irqualis. 



t Allied to G. obtusa, but appears to differ in not being so closely plicate as that species. It 

 may possibly ::: Lecontiana. 



% Is this the young shell of cadus or carinocostata t 



