OP CONCHOLOQY. 355 



6 I 



Pelia, Alb 



.opirulata, Pfr. 

 Ophiogyra, Beck 



polygyrata, Born. 

 Poly gyra, Say ** 



auriculata, Say. 

 Stenotrema, Raf. ** 



ftpinosa, Lea. 

 Triodopsis, Raf ** 



palliaia, Say. 

 Mesodon, Raf. ** 



albolabris. Say. 

 Acanthinula, Beck * 



harpa, Say. 

 Vallonia, Risso * 



pulchella, Mull. 

 Fruticicola, Held * 



hispida, L. 

 Aglaia, Alb 



Ghiesbreghti, Nyst. 

 Eurycampta 



Bonplandi, Lam. 

 Arionta, Leach * 



Townsendiana, Lea. 

 Euparypha, Hartm 



areolata, Sowb. 

 Coryda, Alb 



alauda, Fer. 

 Pomatia, (Leach,) Beck * 



Humboldtiana, Val. 

 Thelidomus, Swain 



auricoma., Fer. 

 Cysticopsis, Morch 



tenerrima, C. B. Ad. 

 Plagioptycha, Pfr 



loxodon, Pfr. 

 Polymita, Beck * 



muscarum, Lea. 

 Liochila, Alb 



Jamaicensis, Chem. 

 Eurycratera, Beck 



Dominicensis, Pfr. 

 Polydontes, Montf. ... 



imperator, Montf. 



