mudfish

n. (Zool.) (a) The European loach. (b) The bowfin (Amia calva). (c) The South American lipedosiren, and the allied African species (Protopterus annectens). See Lipedosiren. (d) The mud minnow, a fish of the genus Umbra or family Umbridae. (e) any fish which lives in muddy waters, such as the mummichog, a killifish. [ 1913 Webster +PJC ]