Noturus gyrinus
Noturus gyrinus (Mitchill, 1817)
Tadpole madtom
Noturus gyrinus
photo by Thomas, C.

Family:  Ictaluridae (North American freshwater catfishes)
Max. size:  13 cm TL (male/unsexed); max. reported age: 3 years
Environment:  demersal; freshwater, non-migratory
Distribution:  North America: Atlantic and Gulf Slope drainages from New Hampshire to Nueces River in Texas, USA; St. Lawrence-Great Lakes, Hudson Bay (Red River), and Mississippi River basins from Quebec to Saskatchewan in Canada and south to Gulf of Mexico in USA.
Diagnosis:   
Biology:  Adults inhabit lakes, rock-mud-bottomed or detritus-bottomed pools and backwaters of lowland creeks and small to large rivers (Ref. 5723, 10294). They feed on midge, isopods, amphipods, mayfly and caddis larvae (Ref. 10294).
IUCN Red List Status: Least Concern (LC); Date assessed: 01 March 2012 Ref. (130435)
Threat to humans:  harmless


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