

Black-lined periwinkle
Littorina nigrolineata
- side view 2
Black-lined periwinkle
Littorina nigrolineata
- side view 3
Black-lined periwinkle
Littorina nigrolineata
- mouth / underside 1
Black-lined periwinkle
Littorina nigrolineata
- mouth / underside 2
Black-lined periwinkle
Littorina nigrolineata
- mouth / underside 3
A species usually found high on the uppershore often in small crevices and in association with other marine snails which may include Melarhaphe neritoides, the Small periwinkle; Littorina saxatilis, the Rough periwinkle; and others.
Images of species taken on rocks at the east end of Par Beach, Par, near St. Austell, 16.05.09; and on the uppershore at Sennen Cove, Cornwall, 16.10.11.
