Spiral shell fragments

Spiral shell fragments

Observation - Spiral shell fragments - UK and Ireland. Description: Fragments of two spiral shells - similar sizes but different colours. Although the beach was strewn with cockles, mussels and oyster shells, there were very few spiral shells. I don't know whether these two are variant forms of the same species, or differ

Fragments of two spiral shells - similar sizes but different colours. Although the beach was strewn with cockles, mussels and oyster shells, there were very few spiral shells. I don't know whether these two are variant forms of the same species, or different types of shellfish