243 



DONACIDJE. 



Donax vittatus (Da Costa) ; Redcar, Saltburn, Skinnin- 

 grove, Staith.es, Runswick Bay, Whitby, Robin Hood's Bay, 

 Bridlington ; common. 



MACTRIDJE. 



Mactra stultorum (Linn) ; Redcar, Saltburn, Runswick 

 Bay, Robin Hood's Bay, Bridlington ; common, 



Mactra stultorum var. ; Saltburn. 



Spisula solida (Linn) ; Redcar, Saltburn. 



Spisula elliptica (Brown) ; Saltburn. 



Lutraria elliptica (Lamarck) ; Redcar, Saltburn, Skinin- 

 grove, Whitby. 



VENERIDjE. 



*Dosinia Iupina (Linn) ; Redcar, Saltburn, Staithes. 



*Clausinella fasciata (Da Costa) ; Redcar, Saltburn, 

 Skinningrove, Staithes, Runswick Bay, Whitby, Robin 

 Hood's Bay, Bridlington ; common. 



Tapes virgineus (Linn) ; Saltburn. 



Tapes pullastra (Montague) ; Redcar, Saltburn, Skinnin- 

 grove, Runswick Bay, Bridlington ; common. 



Tapes pullastra var. perforans (Montague) ; Saltburn. 



CARDIIDJE. 



Cardium echinatum (Linn) ; Saltburn. 



*Cardium tuberculatum. 



♦Cardium fasciatum (Montague) ; Redcar, Saltburn. 



Cardium edule (Linn) ; Redcar, Saltburn, Skinningrove, 

 Staithes, Whitby, Runswick, Robin Hood's Bay, Brid- 

 lington ; common. 



*Lsevicardium norvegicum (Sp?ngler) ; Staithes. 



