Animal Systematics, Evolution and Diversity

The Korean Society of Systematic Zoology (한국동물분류학회)
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Additional Description of the Vent Scale Worm Thermopolynoe branchiata (Polychaeta: Polynoidae) from the North Fiji Basin

  • Won-Kyung, Lee (Division of Biomedical Resesarch, Korea Research Institute of Bioscience and Biotechnology) ;
  • Geon Hyeok, Lee (Department of Biological Sciences, Inha University) ;
  • Se-Jong, Ju (Management Division, Korea Institute of Ocean Science & Technology) ;
  • Se-Joo, Kim (Division of Biomedical Resesarch, Korea Research Institute of Bioscience and Biotechnology)
  • Received : 2022.09.30
  • Accepted : 2023.01.04
  • Published : 2023.01.31
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Abstract

Thermopolynoe Miura, 1994 is a monotypic genus in Lepidonotopodinae that comprises species endemic to chemosynthesis-based ecosystems. Here, we examined T. branchiata collected from the hydrothermal vents in the North Fiji Basin. For the first time in Thermopolynoe, we report sexual dimorphism detecting nephridial papillae on segments 11-13 in males, additionally describe the morphology on elytra with round to conical microtubercles on the surface, and distinguish presence of small neuropodial lobes on segments 3-26. We also revised couple of errors and ambiguities in the original description: incongruence between the description and figure and existence of individual variation in ratio of tentacular cirri and palps. In addition, three COI sequences of T. branchiata specimens from the North Fiji Basin were newly obtained and sequences divergence with other Lepidonotopodinae species were determined. These results would contribute to the taxonomy of polynoids in a chemosynthesis-based ecosystem.

Keywords

Acknowledgement

This work was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2021R1I1A2044998), an R&D project funded by the Korean Ministry of Ocean and Fisheries (19992001), and the Korea Research Institute of Bioscience and Biotechnology (KRIBB) Research Initiative Program.

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