Specimen Information

Myocastor coypus
Myocastor coypus
(nutria)
Mammals
Exotic

Specimen ID241831
GroupMammals
GenusMyocastor
Speciescoypus
Common Namenutria
StateWA
CountyKing
LocalitySammamish River
Mapping AccuracyCentroid
Centroid Type 
HUC8 NameLake Washington
HUC8 Number17110012
Map
+
Collection Day1
Collection Month12
Collection Year1941
Year AccuracyActual
Potential Pathwayescaped captivity fur farm
Statusestablished
Reference 1
Ref. Number:17109
Author:Larrison, E.J.
Date:1943
Title:Feral Coypus in the Pacific Northwest.
Journal:The Murrelet
Volume:24
Issue:1
Pages:3-9
CommentsSpecimens collected by professional fur trappers. According to residents in the area, a colony of "beavers" (nutria) live along the river.
Record TypeLiterature
VerifierRobert Fussner, University of Washington
Freshwater/MarineFreshwater
Number Collected2
Year Classadult
Size#1 was 56in (TL), 50lbs, #2 was 25-30lbs


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Citation information: U.S. Geological Survey. [2022]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [10/5/2022].

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