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Two unrecorded species of the family Comesomatidae Filipjev, 1918 (Nematoda: Araeolaimida) from Korea

  • Jung-Ho Hong (Biodiversity Research Institute, Marine Act Co.) ;
  • Hyeonggeun Kim (Department of Environmental Science, Hanyang University) ;
  • Kichoon Kim (Biodiversity Research Institute, Marine Act Co.) ;
  • Seunghan Lee (Biodiversity Research Institute, Marine Act Co.) ;
  • Kanghyun Lee (Biodiversity Research Institute, Marine Act Co.) ;
  • Wonchoel Lee (Department of Life Science, College of Natural Sciences, Hanyang University)
  • Received : 2022.10.26
  • Accepted : 2023.03.16
  • Published : 2023.05.31

Abstract

Two known species of the family Comesomatidae Filipjev, 1918 were collected from marine sediments of the sublittoral zone in the East Sea, Korea and described and illustrated. Dorylaimopsis variabilis Muthumbi, Soetaert and Vincx, 1997, which was originally described from the Kenyan coast in the Indian Ocean, is recorded from the East Sea, Korea for the first time; there are only slight differences in amphidial fovea turns, body length, body width and relative length of tail. Setosabatieria hilarula (De Man, 1922), Platt, 1985, which was originally described from the North Sea, is recorded from the East Sea, Korea for the first time; there are only slight differences in the number of precloacal supplements, the relative length of tail and the posterior portion of tail. We provide pictorial keys for determination of valid species in the genera Dorylaimopsis Ditlevsen, 1918 and Setosabatieria Platt, 1985. This is the first description of the genus Dorylaimopsis and Setosabatieria from Korean waters.

Keywords

Acknowledgement

This research was funded by the National Institute of Biological Resources (NIBR202203105) and National Marine Biodiversity Institute of Korea (MABIK), grant number 2022M01100.

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