244 



I n d e X 



u o m i u u m e t 8 y n o n y m o r u m. 



Abra Leach 



Acamptosomata Leach, ord, 

 Acepliala Mke. sect. 

 Acera Mke. fam, 

 Achatiua Lam. 



— dactylus Brod. 



— Saulcydi Joann. 

 Achatina Lam. pars 

 Acloua Leach 

 Acteon Montf. 



— trifidus Tott. 

 Adclopneumona Graj. ord, 

 Adesmacea IJlainv. lam. 

 Alasmidonta Rafin. 

 Alasmodonta Say 



— radiata Conr. 

 Amphidesma Lam, 



— Australe Sovv. 



— corrugatum Sow. 



— ellipticura Sow. 



— formosum Sovv. 



— laeve Soav. 



— lenticnlare Sow. 



— pallidum Sow. 



— pulclirum Sow. 



— punctatum Sow. 



— purpurascens Sovv. 



— roseum Sow. 



— rupium Sow. 

 Ampliiperas Gronov. 

 Anatina Lam. 



— costata Sow. 



— prismatica Sow. 

 Anatina Lam. pars 

 Anculosa ( Conr. ? ) 



— picla Conr. 

 Anculotus Say 



— an^ulatus Conr. 



— melanoides Conr. 



— monodontoides Conr. 



— nigrescens Conr. 



— pictus Conr. 



