«7 



Gonlobasis bullula, Lea, Jour. Acad. Nat. Sci. v. pt. 3, p. 221, Mar., 1863. 

 Obs. ix. p. 43, t. 34, f. 5. 



267. Gr. excavata, Anthony.* 



Mdania excavata, Anthony, Ann. Lye. N. Y., vi. p. 99, t. 2, f. 18, Mar., 

 1854. Binney, Check List, No. 102. Biot, List, p. 32, Reeve, Monog. 

 Melauia, sp. 385. 



268. G. purpurea. Lea. 



Melania purpurea, Lea, Proc. Acad. Nat. Sci. p. 120. 



Gonlobasis purpurea, Lea, Jour. Acad. Nat. Sci. v. pt. 3, p. 225, t. 34, f. 12, 

 Mar., 1863. Obs. ix. p. 47. 



269. G. q u ad r i 7 it t at a, Lea. 



Melania quadrinittata, Lea, Proc. Acad. Nat. Sci. 1861, p. 119. 

 Gonlobasis quadrlvlttata. Lea. Jour. Acad. Nat. Sci. v. pt. 3, p. 226, Mar., 

 1863. Obs. ix. p. 48. 



270. G. pr o p r i a, Lea. 



Melania propria, Lea, Proc. Acad. Nat. Sci., p. 118, 1861. 

 Gonlobasis propria, Lea, Jour. Acad. Nat. Sci., v. pt. 3, p. 229, t. 34, f. 21, 

 Mar., 1863. Obs. ix. p. 52. 



271. G. negata, Lea. 



Gonlobasis negata, Lea, Proc. Acad. Nat. Sci., p. 271, 1862. Jour. Acad. Nat. 

 Sci., y. pt. 3, p. 337, t. 38, f. 200, Mar. 1863. Obs. ix. p. 159. 



272. G. i m p r e s s a, Lea. 



Melania impressa, Lea, Philos. Proc. ii. p. 83, Oct. 1841. Philos. Trans , ix. 



p. 19. Obs. IV. p. 19. Wheatley, Cat. Shells U. S., p. 25. iay, Cat. 



Shells, p. 274. Bianey, Check List, No. 143. Brot, List, p. 32. Reeve, 



Monog. Melania, sp. 316, 349. Hanley, Coach. Miscel. Melania, t. 8, f. 69. 

 Megara Impressa, Lea, Chenu, Manuel i. f- 2023, Adams' Genera i. p. 306, 

 Melania crebristrlata, Lea,f Philos. Proc. iv. p. 166. Philos. Trans., x. p. 65, 



t. 9, f. 47. Obs. iv p. 65. Binney, Check List, No. 75. Catlow, Conch. 



Nomenc, p. 186. Brot, List, p. 32. 

 Megara crebristrlata, Lea, Adams' Gecera i. p. 306. 



273. G. per grata. Lea. J 



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

 Gonlobasis pergrata, Lea, Jour. Acad. Nat. Sci. v. pt. 3, p. 243, Mar., 1863. 

 Obs. ix. p. 65. 



274. G. capill ar is, Lea. 



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

 Gonlobasis caplllarls, Lea, Jour. Acad. Nat. Sci. v. pt. 3, p. 236, t. 3",% f. 34. 

 Mar., 1863. Obs. ix. p. 58. 



EURYC^LON, Lea. 



Eurycxlon, Lea, Proc. Acad. Nat. Sci., p. 3, Jan., 1864. 



1. E. u m b n a t a, Lea. 



Gonlobasis umbonata. Lea, Proc. Acad. Nat. Sci., p. 3, 1864. 



2. E. M i d a s. Lea. 



Melania Midas, Lea, Proc. Acad. Nat. Sci., p. 119, 1861. 



Gonlobasis Mlda^, Lea, Jour. Acad. Nat. Sci., v. pt. 3, p. 233, t. 34, f. 28, 

 Mar., 1863. Obs. ix. p. 55. 



*Mr. Anthony's type specimen exhibits unmistakable evidence of tliseased growth. 



fThe difference in the numlier of stri.ne pointed out by Mr. Lea, is not a good distinctive cbarae- 

 ter; they vary much in number on undoubted specimens of impressa. U. crebristriata is not full 

 grown. 



JI fear this is only a Taricty of impressa. 



