Common name: northern river crangonyctid
available through www.itis.gov
Native Range: It is widely distributed in east-central United States and southern Canada, occurring largely west of the Appalachians, extending approximately from the Great Lakes region, south and southwest to Louisiana and Texas (Zhang and Holsinger, 2003 cited in Encyclopedia of Life).
Hydrologic Unit Codes (HUCs) Explained
Puerto Rico &
Interactive maps: Point Distribution Maps
Table 1. States with nonindigenous occurrences, the earliest and latest observations in each state, and the tally and names of HUCs with observations†. Names and dates are hyperlinked to their relevant specimen records. The list of references for all nonindigenous occurrences of Crangonyx pseudogracilis are found here.
Table last updated 9/30/2019
† Populations may not be currently present.
References: (click for full references)
Revision Date: 8/26/2015
Encyclopedia of Life (http://eol.org/pages/344045/details)
U.S. Geological Survey, 2020, Crangonyx pseudogracilis Bousfield, 1958: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?SpeciesID=2387, Revision Date: 8/26/2015, Access Date: 7/15/2020
This information is preliminary or provisional and is subject to revision. It is being provided to meet the need for timely best science. The information has not received final approval by the U.S. Geological Survey (USGS) and is 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 information.