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redbelly dace

American  
[red-bel-ee] / ˈrɛdˌbɛl i /

noun

Ichthyology.
  1. any of the small, brightly colored North American freshwater cyprinids, especially Phoxinus oreas northern redbelly dace and P. erythrogaster southern redbelly dace.


Etymology

Origin of redbelly dace

An Americanism dating back to 1945–50; red 1 + belly