Madtoms are freshwater catfishes (order Siluriformes) of the genus Noturus of the family Ictaluridae. It is the most species-rich genus of catfish in North America, [1] native to the central and eastern United States, and adjacent parts of Canada. [2] . Their fin spines contain a mild venom with a sting comparable to that of a honey bee. [1]

Madtoms inhabit the bottoms of streams, rivers, and lake shores. Species include the stonecat (N. flavus), a common, yellow-brown fish usually found under stones by day, and the tadpole madtom (N., or Schilbeodes, gyrinus), a tadpolelike catfish common in …

On Oct. 16, 2023, the U.S. Fish & Wildlife Service pronounced the Scioto madtom extinct. In scientific parlance, the tiny fish is known as Noturus trautmani. The epithet honors legendary Ohio...

The tadpole madtom is an invertivore, planktivore, but also feeds on particulate. A Common food source for the tadpole madtom are immature insects and small crustaceans such as cladocera , ostracods , hyalella , and chironomids .

The Carolina madtom is a small catfish that is found only in North Carolina, within the Neuse River. The fish faces a variety of threats. Habitat degradation - the primary threat - affects water quality, water quantity, instream habitat suitability, and habitat connectivity.

Twenty-nine madtom species inhabit streams and rivers in the central and eastern United States, and most fall under the management purview of state fish and wildlife agencies. Their common names often pay tribute to the waters they swim: Neosho madtom, Ouachita madtom, Ozark madtom, Carolina madtom.

The mountain madtom is rare and endangered in Missouri. This small catfish has been recorded from only a few locations in the southeastern portion of the state.

The mountain madtom (Noturus eleutherus) is a North American species of temperate freshwater fish belonging to the Noturus genus of the family Ictaluridae. The species was first described to the United States National Museum by Professors Jordan and Gilbert in the Big Pigeon River. [2] .

Venomous ducts inside large spines on its pectoral fin give the species its name, Noturus furiosus, which is Latin for “mad or raging.” The Carolina madtom belongs to the family Icta-luridae, which also includes bullheads and catfish.

The Ozark madtom is a characteristic fish of Missouri’s southwestern Ozark streams. Where it occurs, the Ozark madtom is one of the most abundant species of madtoms. It avoids headwater creeks, reaching its greatest abundance in medium-sized to moderately large Ozark streams.