''Ictalurus lupus'' (the bagre lobo or headwater catfish) is a species of

catfish Catfish (or catfishes; order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the three largest species alive ...

in the family

Ictaluridae The Ictaluridae, sometimes called ictalurids, are a family of catfish native to North America, where they are an important food source and sometimes fished for sport. The family includes about 51 species, some commonly known as bullheads, madt ...

. It resembles the closely related channel catfish (''

Ictalurus punctatus The channel catfish (''Ictalurus punctatus'') is North America's most numerous catfish species. It is the official fish of Kansas, Missouri, Iowa, Nebraska, and Tennessee, and is informally referred to as a "channel cat". In the United States, th ...

''), but is smaller, lacks spots, and has a caudal fin with a shallower fork, and grows to a

total length Fish measurement is the measuring of individual fish and various parts of their anatomies. These data are used in many areas of ichthyology, including taxonomy and fisheries biology. Overall length * Standard length (SL) is the length of a fish ...

of . It is found in Northeastern Mexico and the Southwestern United States.

References

lupus Freshwater fish of Mexico Freshwater fish of the United States Fish of the Western United States Fauna of the Rio Grande valleys Fish described in 1858 Taxonomy articles created by Polbot {{catfish-stub