Animal Systematics, Evolution and Diversity

The Korean Society of Systematic Zoology (한국동물분류학회)
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Three Species of the Genus Nygolaimus (Nematoda: Dorylaimida: Nygolaimidae) Newly Recorded from Korea

  • Kim, Jiyeon (Animal & Plant Research Department, Nakdonggang National Institute of Biological Resources) ;
  • Kim, Taeho (Department of Ecology and Conservation, National Marine Biodiversity Institute of Korea) ;
  • Park, Joong-Ki (Division of EcoScience, Ewha Womans University)
  • Received : 2021.01.14
  • Accepted : 2021.03.15
  • Published : 2021.04.30
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Abstract

Three species of the genus Nygolaimus - N. brachyuris(De Man, 1880) Thorne, 1930, N. obtusus Thorne, 1930, and N. parvus Thorne, 1974 - are newly recorded in Korea. These three species are distinguished from their congeners by the following characteristics: short tail, wider body, and weak mural tooth in N. brachyuris; wider lip region, long tail, and long body in N. obtusus; all characteristics(such as body, pharynx, and tail length) are generally smaller in N. parvus. All specimens were collected from freshwater and sediment in Han River. In this study, detailed descriptions and morphometric values of these three species are provided. Additionally, DNA barcode sequence information from the 18S rDNA gene is also provided for molecular species identification.

Keywords

Acknowledgement

This work was supported by a grant from the Nakdonggang National Institute of Biological Resources (NNIBR) funded by the Ministry of Environment (NNIBR202001107) and Korea Research Fellowship Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT(2020R1A2C2005393) of the Republic of Korea.

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