Animal Systematics, Evolution and Diversity

The Korean Society of Systematic Zoology (한국동물분류학회)
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A New Species of Antennella (Hydrozoa: Leptothecata: Halopterididae) from Korea

  • Hyo-Jin Yu (Department of Life Science, Woosuk University) ;
  • Seung-Joon Lee (Department of Life Science, Woosuk University) ;
  • Sung-Jin Hwang (Department of Life Science, Woosuk University)
  • Received : 2023.12.14
  • Accepted : 2023.12.28
  • Published : 2024.01.31
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Abstract

A taxonomic examination of hydroids collected from the subtidal zones of Ulleungdo and Dokdo located in the East Sea of Korea from 2017 to 2023 was conducted. Through this study, Antennella aurantia n. sp., a new species belonging to the family Halopterididae, was newly added to the hydrozoan fauna of Korea. This new species is clearly distinguished from similar species by the different morphology and size of the hydrothecae, lateral nematothecae, and gonothecae. By comparing the 16S rRNA sequence with 7 recorded species within the Antennella, the interspecific genetic distance to the new species was 8.2-28.9%, which is very high compared to the intraspecific variation of 0.0%, showing that it was clearly distinguished from other species. As a result of this study, a total of 4 Antennella species are reported in the hydrozoan fauna of Korea.

Keywords

Acknowledgement

This work was supported by the management of Marine Fishery Bio-resources Center (2023) funded by the National Marine Biodiversity Institute of Korea (MABIK).

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