| Specimen ID | 241831 |
| Group | Mammals |
| Genus | Myocastor |
| Species | coypus |
| Common Name | nutria |
| State | WA |
| County | King |
| Locality | Sammamish River |
| Mapping Accuracy | Centroid |
| Centroid Type | |
| HUC8 Name | Lake Washington |
| HUC8 Number | 17110012 |
| Map | |
| Collection Day | 1 |
| Collection Month | 12 |
| Collection Year | 1941 |
| Year Accuracy | Actual |
| Potential Pathway | escaped captivity fur farm |
| Status | established |
| 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 |
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| Comments | Specimens collected by professional fur trappers. According to residents in the area, a colony of "beavers" (nutria) live along the river. |
| Record Type | Literature |
| Verifier | Robert Fussner, University of Washington |
| Freshwater/Marine | Freshwater |
| Number Collected | 2 |
| Year Class | adult |
| Size | #1 was 56in (TL), 50lbs, #2 was 25-30lbs |
