noun, plural (especially collectively) mud·fish, (especially referring to two or more kinds or species) mud·fish·es.
Examples from the Web for mudfish
The mudfish would have seemed then a poor refugee from the too crowded and aggressive life of the sea.The Outline of History: Being a Plain History of Life and Mankind|Herbert George Wells
The Queensland mudfish is an antiquity, and there has not been much change in its lineage for millions of years.The Outline of Science, Vol. 1 (of 4)|J. Arthur Thomson
The Australian mudfish (Ceratodus) is not known to hibernate or aestivate.
Their roots were five or six feet high, and mudfish splashed in the holes beneath.Wyndham's Pal|Harold Bindloss