Journal of Species Research

  • 제11권4호
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  • Pages.239-252
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  • 2022
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  • 2234-7909(pISSN)
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  • 2713-8615(eISSN)
국립생물자원관 (The National Institute of Biological Resources)
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A new species of Afrolaophonte (Copepoda, Harpacticoida, Laophontidae) from Korea and cladistic tests of species-groups

  • Tomislav, Karanovic (Hanyang University, College of Natural Sciences, Department of Life Science)
  • 투고 : 2021.11.12
  • 심사 : 2022.02.07
  • 발행 : 2022.11.30
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초록

Afrolaophonte koreana sp. nov. is described from the intertidal zone of two sandy beaches on the south coast of Korea. This is the first record of the genus Afrolaophonte Chappuis, 1960 in the Northern Pacific. The new species is most similar to A. aequatorialis Cottarelli and Mura, 1981, described from the Maldives and subsequently also found in Papua New Guinea, but could be distinguished by numerous characters, including the segmentation of the third leg endopod in male, armature formula of the second leg in both sexes, length of caudal rami in both sexes, and length of some setae on the fourth leg in female. Afrolaophonte ensiger Wells and Rao, 1987 from the Andaman and Nicobar Islands is established as a junior subjective synonym of A. aequatorialis. To test previous phylogenetic hypotheses based on intuitive methods, a parsimony based cladistic analysis of 13 valid congeners is performed using 15 morphological characters and one outgroup. Only one of three previously proposed species-groups is supported with a synapomorphy, while one was clearly based on symplesiomorphies. Our current knowledge of morphology in this genus is not sufficient for postulating interspecific phylogenies, which also renders previous zoogeographical hypotheses untestable.

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과제정보

This work was supported by a grant from NIBR, funded by the Ministry of Environment of the Republic of Korea (NIBR202104101). I am very grateful to Prof. GiSik Min (Inha University, Incheon) for a continuous support through the research project 'Discovery of Korean Indigenous Species'. I would also like to thank Prof. Ivana Karanovic and Ms Pham Thi Minh Huyen (both from Hanyang University, Seoul) for their generosity in sharing research facilities and for providing administrative help respectively.

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