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Molluscs › Periwinkle Snails

Sitka Periwinkle

Littorina sitkana

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Wildlife study photograph from iNaturalist.
(c) b_harvey, some rights reserved (CC BY-NC)

28 photos

Study shows up to four per card, from different observers, so you learn the species rather than one picture. Heart the good ones and swap any you do not like.

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Easily confused with

Study checks a spoken answer against these, and tells you which one you named.

Where it is recorded

Records by month in British Columbia.January 67, February 62, March 96, April 113, May 174, June 152, July 120, August 107, September 94, October 75, November 60, December 61.
United States1,542
British Columbia1,280
Canada1,168
Washington509
Alaska438
Oregon9
Nunavut2
Japan2
Hokkaido2
Russia2

Counts show where people looked, not only where it lives.

Traits

Physical

  • Shell-bearingProtected by a hard shellFrom its classification

Classification

KingdomAnimals · Animalia
PhylumMolluscs · Mollusca
ClassGastropods · Gastropoda
OrderLittorinimorpha
FamilyPeriwinkle Snails · Littorinidae
GenusLittorina

Sources

Remember the name next time.

Practise Sitka Periwinkle with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.

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