noun
or red-bellied dace
: either of two small No. American cyprinid fishes ( Phoxinus eos and P. erythrogaster ) that are widely but irregularly distributed from the Hudson Bay drainage to New Brunswick and southward and westward to New Mexico, are dusky greenish black above with a creamy or pale yellow stripe along each side bounded by narrower black stripes, the belly deep red and the fins golden more-or-less marked with black and red, and esteemed in Europe as aquarium fishes