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Molluscs › River Mussels

Swollen River-mussel

Unio tumidus

2,876 observations in the source records

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Wildlife study photograph from iNaturalist.
(c) philip_schaffer, some rights reserved (CC BY)

25 photos

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What the records say

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 Alaska.January 434, February 320, March 502, April 790, May 1,139, June 1,242, July 1,329, August 1,143, September 839, October 626, November 342, December 267.
United States8,972
Alaska8,972
Russia651
Germany216
Ukraine177
Poland175
Kursk Oblast109
Moscow Oblast72
Netherlands65
Niedersachsen52

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

Traits

Physical

  • Shell-bearingProtected by a hard shellFrom its classification

Group and habits

  • Filter feederFeeds by filtering suspended food particles from water.From its classification

Classification

KingdomAnimals · Animalia
PhylumMolluscs · Mollusca
ClassBivalves · Bivalvia
OrderFreshwater Mussels · Unionida
FamilyRiver Mussels · Unionidae
GenusUnio

Sources

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