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<p><i>Priacanthus starnesi</i> sp. nov., a bigeye (Perciformes: Priacanthidae) from the western Pacific Ocean, previously misidentified as <i>Priacanthus blochii</i> Bleeker 1853, is described based on its morphological and genetic distinctiveness. The new species is characterized by the following combination of characters: dorsal-fin soft rays 13 or 14; anal-fin soft rays 14 (rarely 15); total gill rakers on first arch 20–22 (modally 21); scales in lateral series 82–87 (rarely 80 or 81); scale rows below lateral line B (counted posteriorly from anal-fin origin to lateral line) 30–32 (rarely 29); 10th dorsal-fin spine short, 12.6–15.1% (mean 14.0%) of standard length; pectoral fin short, 15.0–18.4% (16.9%) of standard length; posterior tip of preopercular spine not usually reaching opercular margin; caudal fin convex; a single large black blotch on pelvic-fin base; peritoneum black. The new species is widely distributed in the western Pacific Ocean, whereas <i>P. blochii</i> is endemic to the Indian Ocean.</p>

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A new species of Priacanthus from the western Pacific Ocean, with a redescription of Priacanthus blochii Bleeker 1853 (Perciformes: Priacanthidae)

  • 期刊论文

  • 发表日期：

    2026年4月16日

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  • Shintaro Hashimoto,
  • Hiroyuki Motomura

摘要

Priacanthus starnesi sp. nov., a bigeye (Perciformes: Priacanthidae) from the western Pacific Ocean, previously misidentified as Priacanthus blochii Bleeker 1853, is described based on its morphological and genetic distinctiveness. The new species is characterized by the following combination of characters: dorsal-fin soft rays 13 or 14; anal-fin soft rays 14 (rarely 15); total gill rakers on first arch 20–22 (modally 21); scales in lateral series 82–87 (rarely 80 or 81); scale rows below lateral line B (counted posteriorly from anal-fin origin to lateral line) 30–32 (rarely 29); 10th dorsal-fin spine short, 12.6–15.1% (mean 14.0%) of standard length; pectoral fin short, 15.0–18.4% (16.9%) of standard length; posterior tip of preopercular spine not usually reaching opercular margin; caudal fin convex; a single large black blotch on pelvic-fin base; peritoneum black. The new species is widely distributed in the western Pacific Ocean, whereas P. blochii is endemic to the Indian Ocean.