Animal Systematics, Evolution and Diversity

The Korean Society of Systematic Zoology (한국동물분류학회)
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New Records of Two Dorylaimoides Species (Nematoda: Dorylaimida: Mydonomidae) from Korea

  • Kim, Taeho (Department of Ecology and Conservation, National Marine Biodiversity Institute of Korea) ;
  • Kim, Jiyeon (Animal & Plant Research Department, Nakdonggang National Institute of Biological Resources) ;
  • Park, Joong-Ki (Division of EcoScience, Ewha Womans University)
  • Received : 2021.01.14
  • Accepted : 2021.02.26
  • Published : 2021.04.30
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Abstract

The genus Dorylaimoides Thorne and Swanger, 1936 comprises over 70 species and predominantly inhabits soil; however, some species are found in semiaquatic or aquatic habitats. In this study, D. elegans(de Man, 1880) Thorne and Swanger, 1936 and D. limnophilus (de Man, 1880) Loof, 1964, collected from sediments in the Hangang River, are reported for the first time in Korea. These two Dorylaimoides species are distinguished from other Dorylaimoides species by their morphological characteristics: a didelphic-amphidelphic reproductive system, short tail, and digitate terminus in D. elegans and a mono-opisthodelphic reproductive system and long tail in D. limnophilus. Here, we provide detailed information on the morphological characteristic (description and illustration) and morphometrics of the two Dorylaimoides species, using optical microscopy. Additionally, 18S rDNA sequences of the two species from the Korean isolates are provided as molecular evidence.

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), Korea Res-earch Fellowship Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT(2020R1A2C2005393) of the Republic of Korea and the National Marine Biodiversity Institute of Korea (2021M00300).

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