Borsa Philippe auteur aut IRD Sembiring A. auteur aut IRD Fauvelot Cécile auteur aut IRD Chen W. J. auteur aut IRD text journalArticle eng text/pdf born digital access Previous phylogeographic studies of the humbug damselfish, a widespread Indo-West Pacific coral reef fish, have revealed a split of two main mitochondrial lineages distributed on either side of the Indo-Pacific barrier. This has been interpreted as the result of vicariance. It has been hypothesized that reproductive barriers might currently limit gene flow between humbug damselfish populations from the Indian Ocean and the Pacific Ocean. In this study, we review the published phylogeographic information to update the distribution of the two main mitochondrial lineages of humbug damselfish. The Indian lineage was distributed from the Red Sea to the eastern extremity of the Sunda Shelf while the Pacific lineage, which diverged from the former by 0.6% net nucleotide divergence and diagnostic substitutions at three nucleotide sites at the cytochrome b locus, was distributed east and north of the Sunda Shelf. The two forms, which are also genetically distinct at nuclear lad, were also characterized by distinct pigmentation patterns. We argue that the two forms represent geminate species. Epithet aruanus Linnaeus is maintained for the Pacific Ocean humbug damselfish while epithet abudafur (Forsskal) is here resurrected for the Indian Ocean humbug damselfish. Future studies should focus on the population genetic structure of the transition zone between Dascyllus abudafur and D. aruanus. specialized Taxonomy Phylogeography Cryptic species Coral reef Indo-West Pacific OCEAN INDIEN PACIFIQUE OUEST 034 036 337 12 709-716 2014 1631-0691 https://www.documentation.ird.fr/hor/fdi:010063641 10.1016/j.crvi.2014.09.001 1631-0691 [F B010063641] https://www.documentation.ird.fr/hor/fdi:010063641 https://www.documentation.ird.fr/intranet/publi/2015/02/010063641.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2015-03-03 2017-08-23 fdi:010063641 fre