Gymnocranius oblongus, a new large-eye bream species from New Caledonia (Teleostei: Lethrinidae)

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• 作者：Philippe Borsa ; Philippe Bé ; arez ; Wei-Jen Chen
• 关键词：Monotaxinae ; Taxonomy ; Molecular genotyping ; Reproductive isolation ; Cryptic species
• 刊名：Comptes Rendus Biologies
• 出版年：2010
• 出版时间：March 2010
• 年：2010
• 卷：333
• 期：3
• 页码：241-247
• 全文大小：688 K

文摘

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 dorso-ventrally 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.