No scales, tail deeply forked with pointed lobes. Body pale bluish-olive above and bluish-white below. Spots vary from a few to many over much of the body and may not occur on large fish. Barbels extend from the chin and upper jaw. Both dorsal and pectoral fins have strong, sharp spines. Larger fish may be distinguished from the white catfish by the longer black barbels and more streamlined body form. Tail more deeply forked and head thinner and less rounded than white catfish. White on belly only to forward edge of anal fin. Found in warm water streams and reservoirs in northwestern and southern Nevada.