NATURAL SCIENCES OP PHILADELPHIA. 



25 



Ilia. G. ex pa ns a, Lea.* 



118. G. p 1 e b e i u s, Anthony. 

 = G.sordida, Lea, No. 186. 



119. G. op aca, Anthony. 



= Pleurocera opaca, Anthony, No. 83. 



123. G. m o d e s t a, Lea.f 



124. G. pagodiformis, Anthony. 

 = G. acutocarinata, Lea, No. 127- 



125. G. Gerhard tii, Lea.t 



126. G. o h 1 i t a, Lea. 



=Pleurocera unciale, Hald., Synonymy, Part 1, No. 28. 



127. G. acutocarinata, Lea. 



G. pagodiformis, Anthony. G. tondosa, Anth., No. 124. 

 Eiimia acutocarinata, Lea, Adams' Genera i. p. 300. 



129. G. C a t aw b a e a, Haldeman. 



Goniobasis Catawbcea, Hald., Amer. Jour. Conch, vol. 1, No. 1, 

 Feb. 25, 1865. 



132. G. symmetrica, Haldeman. 



Ceripha'sia symmetrica, Hald. Adams' Genera i. p. 297. 



138. G. cong e st a, Conrad. 



Melania congesta, Conr., Midler, Synopsis, p. 43. 



139. G. aur iculae formis, Lea. 



Megara auriculceformis, Lea, Adams' Genera i. p. 306. 



140. G. Nic klin i ana, Lea. 



Leptoxis Nickliniana, Lea, Adams' Genera i. p. 307. 



143. G. ebenum, Lea. 

 Nitocris eberia, Lea, Adams' Genera i. p. 308. 

 Melania brunnea, Anth.= G. sordida, Lea, No. 186. 



148. G. graminea, Haldeman. 



Goniobasis graminea, Hald., American Journ. Conch, i. No.l. Feb. 25, 1865. 



150. G. Vanuxemii, Lea. 



Changed to G. Prestoniana, Proc. Acad., 1864, p. 3, Vanuxemii being 

 preoccupied. 

 = G. simplex, Say, No. 157. 



153. G. a b r u p t a, Lea. 



Leptoxis abrupta, Lea, Adams' Genera i. p. 307. 



154. G. d e p y g i s, Say. 



Potadoma depygis, Say, Adams' Genera i. p. 298. 



155. G. li ve s c e n s, Menke. 



Potadoma Niagarensis, Lea, Adams' Genera i. p. 299. 



157. G. simplex, Say. 



G. subsolida, Lea, No. 186, cxcl. synonyms. 



*Very closely allied to, or perhaps=(?. Whitei, No. 111. 

 tPerhaps_P/ewrocera lugubris, Lea. 

 JThis is probably the same as G. semigradata, No. 27. 



(5Mr. Lea agrees with me in considering this species distinct from iostoma, Anth.; and also in 

 making brunneu a synonym oSsordida instead of ebenum. 



1865.] 



