| Specimen ID | 241833 |
| Group | Mammals |
| Genus | Myocastor |
| Species | coypus |
| Common Name | nutria |
| State | WA |
| County | Skagit |
| Locality | Sullivan Slough |
| Mapping Accuracy | Accurate |
| HUC8 Name | Lower Skagit |
| HUC8 Number | 17110007 |
| HUC10 Name | Skagit River-Frontal Skagit Bay |
| HUC10 Number | 1711000702 |
| HUC12 Name | Skagit Delta-Frontal Skagit Bay |
| HUC12 Number | 171100070204 |
| Map | |
| 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 | Animal shot during duck hunting season |
| Record Type | Literature |
| Verifier | Victor B. Scheffer |
| Freshwater/Marine | Freshwater |
| Number Collected | 1 |
| Year Class | juvenile |
| Size | 15 lbs |
| Number of Females | 1 |
