Specimen Information

Pacifastacus leniusculus
Pacifastacus leniusculus
(Signal Crayfish)
Crustaceans-Crayfish
Native Transplant

Specimen ID1754355
GroupCrustaceans-Crayfish
GenusPacifastacus
Speciesleniusculus
Common NameSignal Crayfish
StateCA
CountyEl Dorado
LocalitySouth Fork American River, 0.5 mi NE Lotus, off Hwy. 49
Mapping AccuracyAccurate
HUC8 NameSouth Fork American
HUC8 Number18020129
HUC10 NameLower South Fork American River
HUC10 Number1802012907
HUC12 NameHastings Creek-South Fork American River
HUC12 Number180201290702
Map
Collection Day22
Collection Month6
Collection Year1997
Year AccuracyActual
Reference 1
Ref. Number:43661
Author:Illinois Natural History Survey
Date:2024
Title:Illinois Natural History Survey - Crustacean Collection. Occurrence dataset (ID: 257ea482-2d6f-4cf4-846d-8efeb58f6727). Accessed via the INHS Collections Data Portal (https://biocoll.inhs.illinois.edu/portal)
Publisher:Illinois Natural History Survey
Record TypeSpecimen
DisposalIllinois Natural History Survey - Crustacean Collection
Museum Cat NumberINHS 6333
VerifierC.A. Taylor 12/1997
Freshwater/MarineFreshwater
Number Preserved1


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The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2025]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [12/5/2025].

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