244 



GARIID/E. 



Gari ferroensis (Chemnitz) ; Redcar, Saltburn. 



MYIDJE. 



Mya truncata (Linn) ; Redcar, Saltburn, Skinningrove, 

 Runswick Bay, Whitby, Robin Hood's Bay, Bridlington : 

 common. 



SOLENID/E. 



Ensis ensis (Linn) ; Redcar, Saltburn. 



Ensis siliqua (Linn) ; Redcar, Saltburn. 



SAXICAVID/E. 



Saxicava rugosa (Linn) ; Redcar, Saltburn, Skinningrove, 

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

 Bridlington ; common. 



PHOLADID^:. 



Barnea Candida (Linn) ; Redcar, Saltburn. 



DENTALIIDffi. 



Dentalium entalis (Linn) ; Redcar, Saltburn. 



PATELLID^E. 



Patella vulgata (Linn) ; Redcar, Saltburn, Skinningrove, 

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

 Bridlington ; common. 



*Patella depressa (Pennant) ; Staithes. 



Helcion pellucida (Linn) ; Redcar, Saltburn, Skinnin- 

 grove, Runswick ; common. 



Helcion pellucida var. laevis (Pennant) ; Redcar, Saltburn, 

 Skinniugrove, Runswick Bay. 



ACM/EID/E. 



Acmsea testudinalis (Muller) ; Redcar, Saltburn, Skin- 

 ningrove, Runswick Bay. 



Acmaea virginea (Muller) ; Saltburn. 



