Emmelichthyidae is a small family of small to medium-sized marine ray-finned fishes known commonly as redbaits, rovers, bonnetmouths or rubyfishes.

The Emmelichthyidae are poorly known even among researchers who work in fish taxonomy, and as a result much is unknown about species in the family, such as how they feed, breed, and otherwise behave. The most recently discovered species of the family, the papillated redbait (Emmelichthys papillatus). was not identified and described until 2024.

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