Rough periwinkle

Rough periwinkle

Observation - Rough periwinkle. Description: Seems to come (here locally) in very drab forms but the one seen here is banded. The smooth one is the Common Periwinkle (for comparison) See Comment

Seems to come (here locally) in very drab forms but the one seen here is banded.
The smooth one is the Common Periwinkle (for comparison)
See Comment