"Littorina obtusata", common name the flat periwinkle, is a species of sea snail, a marine gastropod mollusk in the family Littorinidae, the winkles or periwinkles.
Similar species: Littorinimorpha
By Christine Young
Attribution Non-Commercial
Uploaded Oct 29, 2023. Captured Jun 6, 2022 11:15 in 23 Twin Pines Ridge, Orr's Island, ME 04066, USA.
