Xyrauchen texanus
Razorback Sucker
Federal:
Endangered; Proposed Threatened
NS
G1
Collection Details
Specimens
Photos
There are no photos available for this taxon yet.
Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Cypriniformes (Carps and Minnows)
Catostomidae (Suckers)
Xyrauchen
Xyrauchen texanus (Razorback Sucker)
Description
This species account was compiled from
FishBase (Froese, R. and D. Pauly. Editors. 2025. FishBase. World Wide Web electronic publication. www.fishbase.org, version 04/2025.)
and processed using AI-assisted text extraction.
It may contain errors in spelling, punctuation, or formatting.
When citing, please reference the original source rather than this page.
Learn more about our species accounts.
Characters
Body shape: elongated.
Distribution
North America: Formerly throughout medium to large rivers of Colorado River basin from Wyoming and Colorado in USA to Baja California in Mexico. Presently known only above Grand Canyon and in Lakes Mead, Mohave and Havasu on lower Colorado River in USA.
Habitat Associations
Freshwater. demersal. Found in: lakes.
Biology
Occurs in silt-bottomed to rock-bottomed backwaters near strong current and deep pools in medium to large rivers, and impoundments.
Max length: 91.0 cm TL; common length: 50.0 cm TL.
Reproductive mode: dioecism; fertilization: external; nonguarders (open water/substratum egg scatterers); parental care: none.
IUCN Red List Status: Critically Endangered (CR), assessed 2012-04-12. Resilience: Low (Preliminary K or Fecundity.).
References
Page, L.M. and B.M. Burr (1991) A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p.
Etnier, D.A. and W.C. Starnes (1993) The fishes of Tennessee. The University of Tennessee Press, Knoxville, Tennessee, USA. (pls. check date).
Marsh, P.C. and D.R. Langhorst (1988) Feeding and fate of wild larval razorback sucker. Environ. Biol. Fishes 21(1):59-67.
Comments On Xyrauchen texanus