79 



Ilia. G. e x p a n s a, Lea.* 



118. G. plebeius, Anthony. 

 = G.sordida, Lea, No. 186. 



119. G. opaca, Anthony. 



= Pleurocera opaca, Anthony, No. 83. 



123. G. modes ta, Lea.f 



124. G. pagodiformis, Anthony. 

 = G. acutocarinata, Lea, No. 127. 



125. G. Gerhardtii, Lea.J 



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



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



127. G. acutocarinata, Lea. 



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

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



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



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

 Feb. 25, 1865. 



132. G. symmetric a, Haldeman. 

 Ceriphasia symmetrica, Hald. Adams' Genera i. p. 297. 



138. G. congest a, Conrad. 



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



139. G. aur iculaef ormis, Lea. 



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



140. G. Nickliniana, Lea. 



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



143. G. ebenum, Lea. 

 Nitocris ebena, 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. 1. Feb. 25, 1865. 



150. G. V a n u x e m i i, 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. livescens, 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. 

 tPerhap9_.PZewrocera lugubris, Lea. 

 tl'his is probably the same as G. semigradata. No. 27. 



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

 making brunnea a synonym of sordida instead of ebenum. 



