''Eremophilus mutisii'' is a

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

of catfish (order (biology), order Siluriformes) of the family (biology), family Trichomycteridae, and the only member of its genus. This fish grows to about 30 centimetres (12 in) and originates from the Bogotá River basin, which is a tributary of the Magdalena River. It has probably been introduced species, introduced to Ubaté River, Ubaté, Chiquinquirá, and Tundama valleys, Colombia. ''E. mutisii'' uses the vascularized central portion of its stomach for aerial Respiration (physiology), respiration. Air ventilation takes place during a rapid dash to the surface with the expiration of old air preceding inspiration. Air-breathing occurs in Hypoxia (environmental), hypoxic and normoxic water, but is not obligatory. The evolution of a reduced gas bladder, swimbladder is associated with a benthic mode of life in ''E. mutisii''. This fish species is an excellent food fish. It is the only species of food fish which has been able to survive competition from introduced trout and carp species into the region.

References

Trichomycteridae Monotypic fish genera Endemic fauna of Colombia Freshwater fish of Colombia Fish of the Andes Bogotá River Taxa named by Alexander von Humboldt {{Trichomycteridae-stub