electric catfish: freshwater catfish of the Nile and tropical central Africa having an electric organ
silurid: Old World freshwater catfishes having naked skin and a long anal fin more or less merged with the eellike caudal fin
stropharia rugoso-annulata: a large gilled fungus with a broad cap and a long stalk; the cap is dark brown; the white gills turn dark purplish brown with age; edible and choice