PLATE XLVII. 



According to Dr. Lister this species is a shore shell, and found very 

 frequently in the shallows of Lancashire, and near Filey in Yorkshire, 

 Sec. It is also found at Scarborough, Dorsetshire, Devonshire, and 

 Cornwall. 



It is an elegant shell, the outside being beautifully marked with 

 numerous delicate striae like strokes of engraving, and tinged with a 

 fine rose or flesh colour. Some specimens are almost white, or white 

 with transverse bands of deeper red, and the margins yellow. Witri- 

 in, the red colour is much more vivid than the outside. 



Da Costa has placed this species in the Cardium genus, and indeed 

 with much propriety; though Linnaeus arranges it amongst the 

 Tellens. It has a tendency on one side to flexure or slope like the 

 Tellens, but the central and remote lateral teeth we think mould re- 

 move it to the former genus. 



