| Specimen ID | 4397 |
| Group | Crustaceans-Crayfish |
| Genus | Pacifastacus |
| Species | leniusculus |
| Common Name | Signal Crayfish |
| State | CA |
| County | Shasta |
| Locality | Crystal Lake |
| Mapping Accuracy | Accurate |
| HUC8 Name | Lower Pit |
| HUC8 Number | 18020003 |
| HUC10 Name | Hat Creek |
| HUC10 Number | 1802000307 |
| HUC12 Name | Lower Hat Creek Valley-Hat Creek |
| HUC12 Number | 180200030710 |
| Map | |
| Collection Month | 9 |
| Collection Year | 1978 |
| Year Accuracy | Actual |
| Potential Pathway | released bait |
| Status | established |
| Reference 1 |
| Ref. Number: | 1852 |
| Author: | Light, T., D.C. Erman, C. Myrick, and J. Clarke |
| Date: | 1995 |
| Title: | Decline of the Shasta crayfish (Pacifastacus fortis Faxon) of northeastern California. |
| Journal: | Conservation Biology |
| Volume: | 9 |
| Issue: | 6 |
| Pages: | 1567-1577 |
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| Record Type | Literature |
| Freshwater/Marine | Freshwater |
