Toothless blindcat (Trogloglanis pattersoni)

Scientific name: Trogloglanis pattersoni Eigenmann, 1919

The Toothless blindcat (Trogloglanis pattersoni) is a freshwater fish of the family Ictaluridae. Native range: North America, 5 artesian wells penetrating San Antonio Pool of Edwards Aquifer in and near San Antonio, Bexar County, Texas in the USA.

Species facts

Scientific name: Trogloglanis pattersoni
Family: Ictaluridae (North American freshwater catfishes)
Order: Siluriformes (Catfish)
Class: Actinopterygii (Ray-finned fishes)
Maximum length: 10.4
Common length: 6.9
Depth range: 305–582 m (1001–1909 ft)
Environment: Freshwater; bathydemersal; depth range 305 - 582 m
Climate: Deep-water
Distribution: North America: 5 artesian wells penetrating San Antonio Pool of Edwards Aquifer in and near San Antonio, Bexar County, Texas in the USA.
Conservation status (IUCN): Vulnerable (VU) (D2)
Threat to humans: Harmless
Uses: Fisheries: of no interest
Resilience: High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

Last updated 27 September 2026