Pacifastacus leniusculus
Pacifastacus leniusculus
(signal crayfish)
Native Transplant

31 results for Pacifastacus leniusculus (signal crayfish)
Download Data
Click here for listing in all states

Specimen IDCommon NameStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
4429 signal crayfishCA state non-specific1989 18000000 California Regioncollected
4433 signal crayfishCA state non-specific1989 18000000 California Regioncollected
1474347 signal crayfishCAButteShady Rest Area, CA-Hwy 702018 18020121 North Fork Featherunknown
619854 signal crayfishCAEl DoradoLake Tahoe1895 16050101 Lake Tahoeestablished
260636 signal crayfishCAEl DoradoLake Tahoe1916 16050101 Lake Tahoeestablished
1464626 signal crayfishCAHumboldtGravel pits near Mad River2015 18010102 Mad-Redwoodestablished
619851 signal crayfishCAMontereyMonterey County1959 18060005 Salinasestablished
4754 signal crayfishCAMontereyMonterey County1959 18060000 Central California Coastalestablished
4221 signal crayfishCANevadaDonner Lake1962 16050102 Truckeeestablished
4220 signal crayfishCANevadaIndependence Lake1962 16050102 Truckeeestablished
619857 signal crayfishCANevadaNevada County1950 18020126 Upper Bearestablished
4752 signal crayfishCANevadapond on the Shebley Ranch between Colfax and Grass Valley, CA1912 18020126 Upper Bearestablished
619852 signal crayfishCASacramentoDelta [general location]1959 18020163 Lower Sacramentoestablished
619855 signal crayfishCASacramentoDelta [general location]2005 18020163 Lower Sacramentoestablished
619849 signal crayfishCASan FranciscoSan Francisco Bay1959 18050002 San Pablo Bayestablished
619856 signal crayfishCASan FranciscoSan Francisco County1898 18050002 San Pablo Bayestablished
4751 signal crayfishCASanta CruzSan Lorenzo River, Santa Cruz1912 18060015 Monterey Bayestablished
619853 signal crayfishCASanta CruzSanta Cruz County1912 18060015 Monterey Bayestablished
619850 signal crayfishCASanta CruzSanta Cruz County1950 18060015 Monterey Bayestablished
4393 signal crayfishCAShastaBaum Lake [=Brown Lake]1980 18020003 Lower Pitestablished
4400 signal crayfishCAShastaBritton Lake1990 18020003 Lower Pitestablished
4394 signal crayfishCAShastaBurney Creek in the town of Burney1980 18020003 Lower Pitestablished
4397 signal crayfishCAShastaCrystal Lake1978 18020003 Lower Pitestablished
4398 signal crayfishCAShastaEastman Lake at the outflow of Lava Creek1990 18020003 Lower Pitestablished
4399 signal crayfishCAShastaFall River at the mouth of Spring Creek1990 18020003 Lower Pitestablished

These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the data.

Data are not available for download from the web site. Please contact NAS staff for a custom query.

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logoU.S. Department of the Interior | U.S. Geological Survey
Page Contact Information: Pam Fuller - NAS Program (
Page Last Modified: Friday, October 19, 2018


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. [2018]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [10/23/2018].

Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted. For queries involving fish, please contact Pam Fuller. For queries involving invertebrates, contact Amy Benson.