Horizon 1 1 17 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES Comptes Rendus Biologies 241-247 Monotaxinae Taxonomy Molecular genotyping Reproductive isolation Cryptic species 2010 fdi:010049507 ENG Comptes Rendus Biologies 1631-0691 ISI:000277475000007 3 10.1016/j.crvi.2009.12.015 https://www.documentation.ird.fr/hor/fdi:010049507 https://www.documentation.ird.fr/intranet/publi/2010/05/010049507.pdf 333 Horizon (IRD) Gymnocranius oblongus is described as a new species of the subfamily Monotaxinae (Sparoidea: Lethrinidae), a group of commercially important fishes distributed throughout the Indo-West Pacific, from six specimens collected in New Caledonia. It is characterized by an oblong, fusiform body, slightly rounded snout, elongate tail with rounded tips and sub-horizontal, wavy blue lines or dashes on snout and cheeks. It is distinct from sympatric G. grandoculis by a more slender body which is also more symmetrical dorsoventrally and a more elongated caudal fin. Both mitochondrial-DNA and nuclear-DNA markers provide a genetic basis to the distinction of G. oblongus from G. grandoculis. 034 UR227