NATURAL SCIENCES OF PHILADELPHIA. 33 



Goniobasis bullala, Lea, Jour. Acad. Nat. Sci. v. pt. 3, p. 221, Mar., 1863. 

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



267. G. exoavata, Anthony.* 



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

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

 Melania, sp. 385. 



268. G. purpurea, Lea. 



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



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

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



269. G. quadrivittata, Lea. 



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

 Goniobasis quadrivittata, Lea. Jour. Acad. Nat. Sci. v. pt. 3, p. 226, Mar., 

 1863. Obs. ix. p. 48. 



270. G. propria, Lea. 



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

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

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



271. G. n eg at a, Lea. 



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

 Sci., v. 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. Jay, Cat. 



Shells, p. 274. Binney, 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 crebristriala, Lea,f Philos. Proc. iv. p. 166. Philos. Traus., 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 crebristriata, Lea, Adams' Genera i. p. 306. 



273. G. pergrata, Lea. J 



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

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

 Obs. ix. p. 65. 



274. G. c a p i 1 1 a r i s, Lea. 



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

 Goniobasis capillaris, Lea, Jour. Acad. Nat. Sci. v. pt. 3, p. 236, t. 34 f. 34, 

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



EURYC^ELON, Lea. 

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



1. E. umbonata, Lea. 



Goniobasis 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. 

 Goniobasis Midas, Lea, Jour. Acad. Nat. Sci., v. pt. 3, p. 233, t. 34 f 28 

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



3. E. g r a t i os a, Lea. 



Goniobasis gratiosa, Lea, Synonymy, Part 2, No. 2. 



*Mr. AnthoDy'a type specimen exhibits unmistakable evidence of diseased growth. 



fThe difference iu the number of striae pointed out by Mr. Lea, is not a good distinctive charac- 

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

 grown. 



JI fear this is only a variety of impressa. 



1865.] 3 



