Noturus stigmosus Taylor, 1969
Northern madtom
photo by Canadian Museum of Nature, Ottawa, Canada

Family:  Ictaluridae (North American freshwater catfishes)
Max. size:  13 cm TL (male/unsexed)
Environment:  demersal; freshwater
Distribution:  North America: Lake Erie and Ohio River basins from western Pennsylvania, southern Michigan and eastern Kentucky to Ohio River in western Kentucky, USA; tributaries of Mississippi River in western Tennessee and northern Mississippi, USA.
Diagnosis:   
Biology:  Inhabits mixed sand and rock riffles and runs with debris in small to large, often swift rivers. Forages at night, feeding largely on aquatic insect larvae (Ref. 55397).
IUCN Red List Status: Near Threatened (NT); Date assessed: 31 July 2012 Ref. (130435)
Threat to humans:  harmless


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