214 Proceedings of the Royal Physical Society. 



Pholadip^. 



Pholas crispata (Linn.). 



Upper lam., in sandstone, Lamlash. 



TEREDINIDiE. 



Teredo norvegica (Spengl). 



In pieces of old pier, Holy Isle. 



SCAPHOPODA. 



Dentaliid^. 

 Dentalium entalis (Linn.). 



Station 12. 



GASTROPODA. 

 Prosobranchiata — 



CHITONIDiE. 

 Chiton cinereus (Linn.). 



Stations 4, 6. 

 C. marginatus (Penn.). 



Litt. 

 G. ruher (Lowe). 



Station 4. 

 C. marmoreus (Fabr.). 



Station 7. 



Patellid^. 

 Patella vulgata (Linn.). 



Litt. 

 Helcion pellucidum (Linn.). 



Upper lam., Clachland, and Station 8. 

 Tectura testudinalis (MUlL). 



Stations 4, 8. 

 T. virginea (Mull.). 



Stations 4, 6. 

 T.fulva (Mull.). 



Station 10. 



