Common name: Flannelmouth Sucker
available through www.itis.gov
Native Range: Upper and lower Colorado River basin in Arizona, California, Colorado, Nevada, New Mexico, Utah, and Wyoming (Bezzerides and Bestgen 2002). More common in upper Colorado basin, and historically rare in lower Colorado River (Mueller and Wydoski 2004).
Puerto Rico &
Hydrologic Unit Codes (HUCs) Explained
Native range data for this species provided in part by NatureServe
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 Catostomus latipinnis are found here.
Table last updated 10/4/2018
† Populations may not be currently present.
Ecology: Flannelmouth Suckers are generally found in pools and deep runs of medium to large rivers within the Colorado River basin, with young fish found in aread of slower water velocity than adults (Bezzerides and Bestgen 2002).
Means of Introduction: Introduced in Utah as discarded bait (Miller 1952). Introduced to lower Colorado River by Arizona Game and Fish Department for black fly abatement (Mueller and Wydoski 2004).
Impact of Introduction: The impacts of this species are currently unknown, as no studies have been done to determine how it has affected ecosystems in the invaded range. The absence of data does not equate to lack of effects. It does, however, mean that research is required to evaluate effects before conclusions can be made.
References: (click for full references)
Bezzerides, N., and K. Bestgen. 2002. Status review of roundtail chub Gila robusta
, flannelmouth sucker Catostomus litipinnis
and bluehead sucker Catostomus discobolus
in the Colorado River basin. Final report submitted to the U.S. Department of Interior, Bureau of Reclamation Division of Planning. 139 pp.
Minckley, W.L. and P.C. Marsh. 2009. Inland fishes of the greater Southwest. University of Arizona Press, Tucson.
Miller, R.R. 1952. Bait fishes of the lower Colorado River, from Lake Mead, Nevada, to Yuma, Arizona, with a key for identification. California Fish and Game 38:7-42.
Mueller, G.A., and R. Wydoski. 2004. Reintroduction of the flannelmouth sucker in the lower Colorado River. North American Journal of Fisheries Management 24:41-46.
Pam Fuller, and Matt Neilson
Revision Date: 3/26/2014
Peer Review Date: 4/1/2016
Pam Fuller, and Matt Neilson, 2018, Catostomus latipinnis Baird and Girard, 1853: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?SpeciesID=348, Revision Date: 3/26/2014, Peer Review Date: 4/1/2016, Access Date: 10/17/2018
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.