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Prognathodesgeminus, a new species of butterflyfish (Teleostei, Chaetodontidae) from Palau.


ABSTRACT: A new species of the butterflyfish genus Prognathodes (Chaetodontidae) is described from two specimens collected at a depth of 116 m off Ngemelis Island, Palau. Prognathodesgeminus sp. n. is similar to P.basabei Pyle & Kosaki, 2016 from the Hawaiian archipelago, and P.guezei (Maugé & Bauchot, 1976) from the western Indian Ocean, but differs from these species in the number of soft dorsal-fin rays, size of head, body width, and body depth. There are also subtle differences in life color, and substantial differences in the mtDNA cytochrome oxidase I sequence (d ? 0.08). Although genetic comparisons with P.guezei are unavailable, it is expected that the genetic divergence between P.guezei and P.geminus will be even greater than that between P.geminus and P.basabei. It is named for the strikingly similar color pattern it shares with P.basabei.

SUBMITTER: M Copus J 

PROVIDER: S-EPMC6477842 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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<i>Prognathodesgeminus</i>, a new species of butterflyfish (Teleostei, Chaetodontidae) from Palau.

M Copus Joshua J   L Pyle Richard R   D Greene Brian B   E Randall John J  

ZooKeys 20190404


A new species of the butterflyfish genus <i>Prognathodes</i> (Chaetodontidae) is described from two specimens collected at a depth of 116 m off Ngemelis Island, Palau. <i>Prognathodesgeminus</i> <b>sp. n.</b> is similar to <i>P.basabei</i> Pyle & Kosaki, 2016 from the Hawaiian archipelago, and <i>P.guezei</i> (Maugé & Bauchot, 1976) from the western Indian Ocean, but differs from these species in the number of soft dorsal-fin rays, size of head, body width, and body depth. There are also subtle  ...[more]

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