Seaside snail most misidentified creature in the world

Rough periwinkles found commonly around UK coast described as new species or sub-species over 100 times

A seaside snail found in rock pools on almost every stretch of coast around the UK has been named as the most misidentified creature in the world.

Rough periwinkles are commonly seen on shorelines around the North Atlantic but come with so many colour and shape variations that they have confused scientists for centuries.