Common name: Ditch Fencing Crayfish
Synonyms and Other Names: Shield Crayfish
available through www.itis.gov
Identification: Faxonella clypeata has a small body with a bullet shaped carapace tapering at the head. The rostrum is broad and without lateral spines or tubercles. This specie’s color is a reddish-tan to olive-tan with two back lines or dashes extending longitudinally along the dorsal surface of carapace and abdomen. The ventral side is tan to white (Morehouse and Tobler 2013).
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 Faxonella clypeata are found here.
Table last updated 9/21/2023
† Populations may not be currently present.
Ecology: This species during dry periods will burrow into the mud instead of migrating (Smith 1953).
Means of Introduction: Bait buckets
References: (click for full references)
Morehouse, R. L., and M. Tobler. 2013. Crayfishes (Decapoda: Cambaridae) of Oklahoma: identification, distributions, and natural history. Zootaxa 3717: 101-157
Smith, E.W. 1953. The life history of the crawfish Orconectes (Faxonella) clypeata (Hay) (Decapoda, Astacidae). Tulane studies in Zoology, 1: 79–96.
Revision Date: 6/9/2017
Daniel, W.M., 2023, Faxonella clypeata Faxon, 1884: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?speciesID=208, Revision Date: 6/9/2017, Access Date: 9/22/2023
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.