In a river of western Brazil, an “armored” creature with bumpy lips swam through the “dark tea-colored” waters. Something ...

A new species of fossorial catfish without dorsal fins, Listrura elongata, was discovered in Southern Brazil in small tributaries in the Rio Camboriú basin.

A new species of fossorial catfish without dorsal fins, Listrura elongata, was discovered in Southern Brazil in small tributaries in the Rio Camboriú basin.

Scientists bought 1-foot-long fish with broad head, long spines at market and discovered a new species: long-threaded catfish, study said and photos show.