| Key to all species of the genus Roa Jordan, 1923 (Acanthuriformes: Chaetodontidae), 8 spp. in 2022. |
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| Matsunuma, M. and H. Motomura 2022. Two new species of the butterflyfish genus Roa (Perciformes: Chaetodontidae). J. Fish Biol. 100(3):758-774. Ref No [126057] Key No. [1734] |