| Specimen ID | 4744 |
| Group | Crustaceans-Crayfish |
| Genus | Faxonius |
| Species | virilis |
| Common Name | Virile Crayfish |
| State | CA |
| County | Butte |
| Locality | Chico |
| Mapping Accuracy | Approximate |
| HUC8 Name | Big Chico Creek-Sacramento River |
| HUC8 Number | 18020157 |
| Map | |
| Collection Year | 1940 |
| Year Accuracy | Actual |
| Potential Pathway | escaped captivity research |
| Status | established |
| Reference 1 |
| Ref. Number: | 10319 |
| Author: | Cohen, A.N., and J.T. Carlton. |
| Date: | 1995 |
| Title: | Nonindigenous Aquatic Species in a United States Estuary, A Case Study of the Biological Invasions of the San Francisco Bay and Delta. |
| Journal: | Report for USFWS, WA DC, and Connecticut Sea Grant |
| Publisher: | A report for the United States Fish and Wildlife Service, Washington, DC and The National Sea Grant College Program Connecticut Sea Grant. |
| Pages: | 246 pp |
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| Comments | Native to Indiana, Illinois. Were brought to a lab at Chico State College. Eats rice shoots and is considered a pest. Has led to the decline of the native Shasta crayfish, Pacifasctacus fortis. |
| Record Type | Literature |
| Freshwater/Marine | Freshwater |
