132 



HEY : MARINE SHELLS OF YORKSHIRE. 



NA TICIDyE. 



Hatica monilifera Lam. 



Often thrown up alive on the beach between Redcar and 

 Tees mouth. 

 Ifatica Alderi Forbes. 



I once met with a quantity of this species in the bottom of a 

 fishing boat at Redcar. 



VELUTINIDyE. 



Velutina Isevig^ata Penn. 

 Scarborough. 



APORRHAIDy^. 



Aporrhais pes-pelecani L. 



Redcar — not a common shell. 



BUCCINIDyE. 



Purpura lapillus L. 



Very abundant on all our rocks between tide marks. The 

 specimens seldom have the bands which so frequently decorate 

 this shell in south-western localities, though the whole shell is 

 often yellow and even bright orange in colour. Perhaps the 

 finest specimens are from the south shore, Scarborough. Banded 

 shells occur at Huntcliff. 

 Buccinum undatum L. 



Very common, the young shells being found in pools near 

 low- water mark, and the adult brought in in great abundance on 

 the fishing lines, attached to the bait. 



The reversed form has been taken at Bridlington. 

 Buccinopsis Dalei J. Sow. 



In York Museum there is a specimen labelled * Runswick 

 Bay.' 



MURICID^. 



Murex erinaceus L. 



Flamborough Head — not uncommon, but I never took it alive. 

 Trophon truncatus Strom. 



A deep-water species, not uncommon off Bridlington. It is 

 a very favourite tenement of the hermit crab. 

 Fusus antiquus L. 



Very common in deepish water. I have taken numbers from 

 the fishing lines at Redcar, Scarborough, and ^Bridlington. 

 Specimens from Redcar are the largest, and show particularly 

 beautiful shades of yellow and pink in the interior of the shell. 

 I have one such shell more than six inches in length. The 

 normal dimensions are 3-25 (Jeffreys). 



Naturalist, 



