Animal Systematics, Evolution and Diversity

The Korean Society of Systematic Zoology (한국동물분류학회)
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Morphological Description, DNA Barcoding, and Taxonomic Review of Five Nudibranch Species (Gastropoda) from South Korea

  • Jina Park (Division of Ecoscience, Ewha Womans University) ;
  • Damin Lee (Division of Ecoscience, Ewha Womans University) ;
  • Eggy Triana Putri (Division of Ecoscience, Ewha Womans University) ;
  • Haelim Kil (Division of Ecoscience, Ewha Womans University) ;
  • Joong-Ki Park (Division of Ecoscience, Ewha Womans University)
  • Received : 2023.05.11
  • Accepted : 2023.06.12
  • Published : 2023.07.31
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Abstract

The nudibranch is one of the most colorful gastropod species found in oceans worldwide. Unlike many other gastropod groups, the nudibranch loses an external shell in the adult stage, but instead develops various chemical defense systems. More than 2,500 nudibranch species have been reported worldwide, and 73 species are currently recorded in Korean waters. In this study, we present morphological descriptions, DNA barcode information of mtDNA cox1 sequence, and taxonomic review for five nudibranch species: Apata pricei (MacFarland, 1966), Doto rosacea Baba, 1949, Janolus toyamensis Baba and Abe, 1970, Polycera abei (Baba, 1960), and Trinchesia sibogae (Bergh, 1905). Of these, we also provide in-depth discussion of taxonomic issue of A. pricei that was previously subdivided into two subspecies, A. pricei pricei and A. pricei komandorica. Our morphological examination and molecular analyses of the mtDNA cox1 sequences indicate that these two subspecies are not taxonomically warranted. The phylogenetic information for the other nudibranch species from mtDNA cox1 sequence analysis is also included, providing a molecular basis for species identification and inferring their local phylogenies within each of the species groups discussed herein.

Keywords

Acknowledgement

Seung-Goo Ra (Ocean Research, Korea), Kwan-Young Song (PADI, Korea), and Yucheol Lee (Korea National Park Service, Korea) helped field survey. 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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