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<p>A new species, <i>Ophthalmolycus auxilepis</i> sp. nov., is described from ten specimens collected in the West Antarctic waters, Scotia to Weddell Sea, at a depth of 315–544&#xa0;m. The new species is characterized by the extensive squamation fully covering the abdomen, predorsal area, and pectoral axil in adults; the presence of three nasal pores along with an absence of an interorbital pore; a double incomplete body lateral line; symmetrical vertebrae; and a characteristic coloration with white-margined dorsal and anal fins, and an extensive dark blotch on the pectoral fin. Ontogenetic changes of the diagnostically valuable characters are described. A revised key of species is provided. The possible Antarctic origin of the genus <i>Ophthalmolycus</i> is discussed.</p>

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A new lycodine eelpout, Ophthalmolycus auxilepis, from the Antarctic waters (Teleostei, Zoarcidae)

  • 期刊论文

  • 发表日期：

    2026年2月6日

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  • Artem M. Prokofiev,
  • Mikhail V. Nazarkin,
  • Stanislav G. Kobyliansky,
  • Alexei M. Orlov

摘要

A new species, Ophthalmolycus auxilepis sp. nov., is described from ten specimens collected in the West Antarctic waters, Scotia to Weddell Sea, at a depth of 315–544 m. The new species is characterized by the extensive squamation fully covering the abdomen, predorsal area, and pectoral axil in adults; the presence of three nasal pores along with an absence of an interorbital pore; a double incomplete body lateral line; symmetrical vertebrae; and a characteristic coloration with white-margined dorsal and anal fins, and an extensive dark blotch on the pectoral fin. Ontogenetic changes of the diagnostically valuable characters are described. A revised key of species is provided. The possible Antarctic origin of the genus Ophthalmolycus is discussed.