What is "wels catfish"

n. (taxlink Silurus glanis species noshow=1), a scaleless fresh-water catfish recognizable by its broad, flat head and wide mouth.

The wels catfish ( or ; Silurus glanis), also called sheatfish, is a large species of catfish native to wide areas of central, southern, and eastern Europe, in the basins of the Baltic, Black, and Caspian Seas. It has been introduced to Western Europe and is now found from the United Kingdom all the way east to Kazakhstan and south to Greece and Turkey. It is a scaleless freshwater fish recognizable by its broad, flat head and wide mouth. Wels catfish can live for at least fifty years and have very good hearing.

The wels catfish lives on annelid worms, gastropods, insects, crustaceans, and fish; the larger ones also eat frogs, mice, rats, aquatic birds such as ducks and are occasionally cannibalistic. Recently, individuals of this species in environments that are not their native habitats have been observed lunging out of the water to grab pigeons on land.