3044 Noturus nocturnus Jordan & Gilbert, 1886 Ictaluridae North American freshwater catfishes Siluriformes Teleostei Freckled madtom North America: Mississippi River basin from northern Illinois to Louisiana, and from eastern Kentucky to central Kansas and Oklahoma in the USA; Gulf Slope drainages from Mobile Bay in Alabama to Guadalupe River in Texas, USA. AMNH 53418 1969 Noturus nocturnus AMNH 64602 1969 Noturus nocturnus AMNH 65325 1969 Noturus nocturnus AMNH 86924 1979 Noturus nocturnus GCRL 26887 1995 Noturus nocturnus