New case of lateral asymmetry in fishes: A new subfamily, genus and species of deep water clingfishes from Papua New Guinea, western Pacific Ocean

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• 作者：Ronald Fricke^a ; ^{ronfricke@web.de} ; Jhen-Nien Chen^b ; Wei-Jen Chen^b
• 关键词：Gobiesocidae ; Clingfishes ; New subfamily ; New genus ; New species ; Papua New Guinea ; Molecular phylogeny ; PAPUA NIUGINI biodiversity expedition
• 刊名：Comptes Rendus Biologies
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：340
• 期：1
• 页码：47-62
• 全文大小：2579 K
• 卷排序：340

文摘

The unusual clingfish Protogobiesox asymmetricus n. gen, n. sp. is described on the basis of four specimens collected in deep water off the north coast of Papua New Guinea in 2012. The species is characterized by its 9–10 dorsal rays, 8 anal rays, 17–24 pectoral-fin rays, 15 principal caudal-fin rays, 3 gills, third arch with 3 gill rakers, 34–35 total vertebrae, with asymmetrical lateral bending starting behind the skull, bent at an angle of 85°–92°; skull asymmetrical in frontal view; skin naked, surface of head and body without striae; disc without adhesive papillae. A new subfamily Protogobiesocinae is described for this species and Lepadicyathus mendeleevi Prokofiev, 2005, which is redescribed. The new subfamily is compared within the family; keys to the subfamilies of Gobiesocidae and the species within the new subfamily are presented; its phylogenetic relationship to other gobiesocids is inferred based on a multi-locus DNA dataset.