Prognathodes basabei, the orange margin butterflyfish, is a species of butterflyfish, a marine ray-finned fish in the family Chaetodontidae.Pyle, R.L. & Kosaki, R.K. (2016): Prognathodes basabei, a new species of butterflyfish (Perciformes, Chaetodontidae) from the Hawaiian Archipelago. ZooKeys, 614: 137–152. It is found in Hawaii.

Description Prognathodes basabei reaches a standard length of .

Etymology Named in honor of Peter K. Basabe, a diver and aquarium fish collector, for his role in the collection of the first specimen of this new species in 1998.

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