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The rivers of tropical islands are colonized by amphidromous species. The order Gobiiformes presents the major diversity in these teleost communities. The genus Rhyacichthys forms a particular group within this order, with the presence of several plesiomorphic characters but also because it constitutes the sister group of all other Gobiiformes. The genus Rhyacichthys includes two valid species: Rhyacichthys aspro (Valenciennes, 1837) and Rhyacichthys guilberti Dingerkus & Seret, 1992 which are only found in the western Pacific (e.g., Vanuatu, Indonesia, Japan). The aim of the present study consists of the taxonomic revision of the genus, in which more than two species are suspected, using integrative taxonomy. Morphomeristic and molecular analyses (partial mtDNA, 7134 bp) were conducted on recent and collection specimens, including type specimens. Short fragments of mtDNA ( Keywords: Teleostei, Rhyacichthys, integrative taxonomy, species resurrection, collection specimens, THE RHYACICHTHYIDAE (Teleost: Gobiiformes) includes two genera: Protogobius Watson & Pollabauer, 1998, which is monospecific (Protogobius attiti Watson & Pollabauer, 1998) and Rhyacichthys Boulenger, 1901. There are currently two known [...]

Trois spécimens d'Hippichthys albomaculosus Jenkins & Mailautoka, 2010, connu uniquement des Fidji, ont été récemment collectés dans la Province Nord de la Nouvelle-Calédonie. Les valeurs morpho-méristiques confirment l'identité des spécimens. Cette étude constitue le premier signalement de cette espèce en Nouvelle-Calédonie et hors de sa localité type. [ABSTRACT FROM AUTHOR]