Genyatremus is a genus of marine ray-finned fish, sweetlips belonging to the subfamily Plectorhynchinae, one of two subfamilies in the family Haemulidae, it consists of four species. The name of this genus is a compound of genys meaning “chin”, a meaning “without” and tremus meaning “pore”, a reference to the lack of a central pore on the chin in the fishes in this genus.

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