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Photo of a Common Periwinkle

Species profile

Common Periwinkle

Littorina littorea

Marine snails (periwinkle/cowrie)19.0K iNat observations

Identify Common Periwinkle (Littorina littorea) from a photo: try it free in your browser, or get unlimited IDs, no sign-up, with the CatchRules app. Plus current fishing rules across 1 jurisdiction.

At a glance

Common Periwinkle (Littorina littorea) is a marine snails (periwinkle/cowrie) with specific harvest rules tracked in 1 of 66 jurisdictions covered by CatchRules.

Confirmed by 11,901 research-grade iNaturalist observations, with Maine, Nova Scotia, and Massachusetts the top jurisdictions by observation count.

Notable details

  • Introduced to North America from Europe, first documented near Halifax, Nova Scotia around 1840.
  • Grows to about 1 inch (2.5 cm) tall, making it the largest North American periwinkle.
  • Edible and popular in British cuisine, typically boiled and picked from the shell.
  • Survives out of water for several days by tightly sealing its trapdoor-like operculum.
  • Can live up to 10 years in the wild.

Background

The common periwinkle or winkle (Littorina littorea) is a species of small edible whelk or sea snail, a marine gastropod mollusc that has gills and an operculum, and is classified within the family Littorinidae, the periwinkles.

Background excerpt adapted from Wikipedia's Common Periwinkle article (CC BY-SA). Visit Wikipedia for the full entry.

Frequently asked questions

What is Common Periwinkle?

Common Periwinkle (Littorina littorea) is a marine snails (periwinkle/cowrie) with specific harvest rules tracked in 1 of 66 jurisdictions covered by CatchRules.

What is the scientific name for Common Periwinkle?

Common Periwinkle is Littorina littorea.

Is Common Periwinkle regulated for fishing?

Yes — Common Periwinkle has fishing regulations in 1 U.S. state and/or Canadian province tracked by CatchRules. See the "Jurisdictions with rules" section above for the binding-source links.

How can I identify Common Periwinkle?

Take a photo with the free CatchRules app for iPhone or Android — on-device identification recognizes Common Periwinkle along with ~1,500 other species. No sign-up, unlimited use.

Photo credit: iNaturalist / Wikipedia. Identification reference only — verify regulations with the issuing wildlife agency before retaining a catch.