iDog whelks often sit among barnacles or mussels, both of which they eat. Look for a sturdy pale or banded spiral shell. If the opening is already visible, a short notch at the lower end helps distinguish the shell from a common periwinkle.
iiDog whelks often sit among barnacles or mussels, both of which they eat. Look for a sturdy pale or banded spiral shell. If the opening is already visible, a short notch at the lower end helps distinguish the shell from a common periwinkle.