1 2 3 4 5 6 M 

 Class Gastropoda 

 I Subclass Prosobranchia 



Order Archaeogastropoda 

 Family Fissurellidae 



Diodora aayenensis x 



Diadora noachina + + 



Punaturella noachina + x x + x x 



Family Acmaeidae 



Acmaea testudinalis x x x x x x x 



Family Lepetidae 



Lepeta caeca + x x x 



Family Trochidae 



Calliostoma oacidentale + 

 Margarites costalis 

 Margarites gvoenlandica 

 Margarites heliainus 

 Margarites minutissimus 

 Margarites olivaceus 

 Moelleria costulata 

 Solariella obscura 

 Order Mesogastropoda 

 Family Lacunidae 



Lacuna pallidula + x 



Lacuna vincta x x x x x x x (not inner Penobscot 



Family Littorinidae ^^ 



Littorina sp. x x x 



Littorina irrorata v 



4~E-28 



10-80 



