Noturus is a genus in the family Ictaluridae. Ictalurids are found in North and Central America east of the Rockies from Canada to Guatemala. Noturus is the largest group in this family and they are found in many states, including Minnesota.

The tadpole madtom is usually found in streams and riffles, but can occasionally be found at the margins of lakes. They are often found among stones in rocky streams. They can also be found under branches, leaf detritus or even in old cans. The best way to collect madtoms is with a seining net or a kick net and if you're really lucky you might find them in an old can or bottle. If you net something that reminds you of a small bullhead, you might have a tadpole madtom. They have smooth, sca ...

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