mayfish n 1: black-barred fish of bays and coastal marshes of the Atlantic and Gulf Coast of the United States [syn: {striped killifish}, {mayfish}, {may fish}, {Fundulus majalis}]
Mayfish \May"fish`\, n. (Zool.) A common American minnow ({Fundulus majalis}). See {Minnow}. [1913 Webster]