flagfish

[flag-fish]

noun, plural (especially collectively) flag·fish, (especially referring to two or more kinds or species) flag·fish·es.

Also called American flagfish. a killifish, Jordanella floridae, inhabiting swamps and streams of Florida, having a blue-brown back and whitish sides with red stripes, often kept in aquariums.

any of several other brightly colored fishes.

Origin of flagfish

flag¹ + fish