1 2 3 4 5 6 M 

 Family Melanellidae 



Couthouy ella striatuta + x + + 



Family Aclididae 



Aalis sp. X 



Aolis striata + 



Family Hopponicidae 



Hipponix sp. + 



Family Trochotopidae 



Toretlia vestita off shore 



Triahotropis borealis + x x + x 



Family Crepidulidae 



Crepidula sp. x 



Crepidula oonvexa x + + x 



Crepidula fornioata x x x x x x x 



Crepidula plana + x + x x 



Crucibulum striatum + + x x 



Family Aporrhaidae 



Aporrhais sp. + 



Aporrhais oaaidentalis + x x x x 



Family Velutinidae 



Marsenina ampla + 



Marsenina glabra + + x 



Marsenina prodita + 



Velutina sp. x x x 



Velutina laevigata + + x x x x 



Velutina undata + x x x 



4-E-30 



