report of commissioners of inland fisheries. 33 



Ptenoglossa. 

 Scalariuicp. 



Scalaria lineata, Say. 



Scalaria grojnlandica, Chemnitz. 



Scalaria nuiltistriata, Say. 

 lanthinidce. 



lanthina fragilis, Desliayes. 



Gymnoglossa. 



Pyramidellidce. 



Odostomia bisiituralis, Say. 

 Odostomia dealbata, Stimpson. 

 Odostomia fiisca, Adams. 

 Odostomia seminuda, Adams. 

 Odostomia trifida, Totten. 

 Odostomia producta, Adams. 



Rhiphidoglossa. 



Trochidoe. 

 Margarita helicina, Fabricius, 

 Margarita obsciira, Coiithoiiy. 



Docoglossa. 



AcmcBidce. 



Acmaea testiidinalis, Muller. 



III. SCAPHOPODA. 



IV. PELECYPODA. 



EULAMELLIBRANCHIATA. 



Anatinacea. 

 AnatinidcB. 



Anatina papyracea, Say. 

 Cochlodesma leana, Conrad. 



