Cepaea nemoralis polymorphism

Cepaea nemoralis polymorphism

Observation - Cepaea nemoralis polymorphism. Description: Cluster of C. nemoralis on the undersides of common reed leaf blades besides the River Ousel at the OU, showing variability in shell colour and banding (plus one Arianta arbustorum half in shade at bottom)

Cluster of C. nemoralis on the undersides of common reed leaf blades besides the River Ousel at the OU, showing variability in shell colour and banding (plus one Arianta arbustorum half in shade at bottom)