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Colour
Vaious colour variations and striped forms
Diet
Dog Whelks preys on shelled animals via a " lingual" Ribbon which bores a hole in the tough shell of static creatures where rasping teeth reach the internal creature . This is solely a mechanical process.
The principle food is however are those creatures which are immobile - namely Acorn Barnacles and Mussels.
Many of the Browsing snails such as Grey & Flat Top Shells, Limpet, Common & Flat Periwinkles are preyed upon by thre voracoious Dog Whelk. Dog whelks feed on Balanus balanoidesand and Cthtamalus stellatus.
The mechanical boring proess in thee bivalves is unnecessary as they are simply pushed apart
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