129 



THE MARINE SHELLS OP YORKSHIRE. 



By the Rev. W. C. HEY, M.A., 



Si. Olaves Vicarage, York ; President of the Conch)logical Section of the Yorkshire 

 Xaturalists' Union. 



(Continued from page 31.) 



DENTALIID^. 



Dentalium entalis L. 



Redcar and Scarborough. A deep water shell; only rarely 

 found on the beach. 



CHITONID.-E. 



Chiton marginatus Penn. 



Adhering to loose stones, or to rocks, between tide marks. 

 Common at Scarborough, Redcar, Filey, &c. Very variable in 

 colour ; pink specimens often occur at Scarborough. 

 Chiton cinereus L. 



I have dredged this species in a few fathoms water off Cay ton 

 Bay. 



Chiton Hanleyi Bean. 



Scarborough (Bean). 

 Chiton marmoreus Fab. 



Bean obtained this species at Scarborough. 

 Chiton fascicularis L. Redcar. 



PA TELLIDjE. 



Patella vulgata L. 



Everywhere where the coast is rocky, both on flat scars and 

 steep cliffs, as at Flamborough Head. In such localities as the 

 last named, it is generally dwarfed, and very coarsely ribbed. I 

 have a very dark and finely striated form from Skinningrove. 

 Limpets are commonly designated on this coast ' flithers,' and 

 are largely collected for bait. 

 Helcion pellncidum L. 



Adhering to the leaves of Laminaria digitata at dead low- 

 water mark. Very abundant on Filey Brig. Also at Redcar, 

 Bay Town, and Scarborough. 

 Var. Isevis Penn. 



Fine on West Scar, Redcar. 

 Acmsea testudinalis Miill. 



Unusually abundant on the Lias Scars below Huntclifif Not 

 uncommon on the Redcar Scars and the south shore at Scar- 

 borough. In all these localities the specimens show the most 

 varied markings. 



Jan. 1885. 



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