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<p>A new epigonid fish, <i>Epigonus lustrans</i> sp. nov., is described based on nine specimens (57.6–105.5 mm in standard length: SL) collected off the southeastern coast of the island of São Tomé: a single specimen was collected in a cave on Santana Island in 6 m depth and eight specimens were taken by a bottom trawl in 55–71 m depth. One of the paratypes (SMNS 25277) was previously reported as <i>Epigonus constanciae</i> (Giglioli 1880), a deeper-living species from more northern waters of the eastern Atlantic and Mediterranean. <i>Epigonus lustrans</i> sp. nov. is distinguished from other congeners by a combination of the following characters: dorsal-fin rays VII-I, 10; pectoral-fin rays 16–17; total gill rakers 23–25; vertebrae 10 + 15; pyloric caeca 8; pored lateral-line scales 46–49 + 4; opercular spine absent; maxillary mustache-like processes absent; lingual teeth absent; small conical teeth on lower jaw; pair of ribs present on last abdominal vertebra; tubercle on inner symphysis of lower jaw absent; pectoral-fin length 16.8–22.8% SL; postorbital length 10.8–12.7% SL; silvery white gill cover; and light brown pectoral fin.</p>

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Epigonus lustrans, a new deepwater cardinalfish (Acropomatiformes: Epigonidae) from São Tomé and Príncipe, eastern central Atlantic

  • 期刊论文

  • 发表日期：

    2025年12月24日

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  • Makoto Okamoto,
  • Ronald Fricke,
  • Naoki Yagishita

摘要

A new epigonid fish, Epigonus lustrans sp. nov., is described based on nine specimens (57.6–105.5 mm in standard length: SL) collected off the southeastern coast of the island of São Tomé: a single specimen was collected in a cave on Santana Island in 6 m depth and eight specimens were taken by a bottom trawl in 55–71 m depth. One of the paratypes (SMNS 25277) was previously reported as Epigonus constanciae (Giglioli 1880), a deeper-living species from more northern waters of the eastern Atlantic and Mediterranean. Epigonus lustrans sp. nov. is distinguished from other congeners by a combination of the following characters: dorsal-fin rays VII-I, 10; pectoral-fin rays 16–17; total gill rakers 23–25; vertebrae 10 + 15; pyloric caeca 8; pored lateral-line scales 46–49 + 4; opercular spine absent; maxillary mustache-like processes absent; lingual teeth absent; small conical teeth on lower jaw; pair of ribs present on last abdominal vertebra; tubercle on inner symphysis of lower jaw absent; pectoral-fin length 16.8–22.8% SL; postorbital length 10.8–12.7% SL; silvery white gill cover; and light brown pectoral fin.