Korean Journal of Environmental Biology (환경생물)

Korean Society of Environmental Biology (한국환경생물학회)
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Admirandus multicavus Belogurov and Belogurova, 1979 (Nematoda, Enoplida, Oncholaimidae), a new record of free-living marine nematode discovered from the intertidal zone of Korea

  • Hyun Soo Rho (East Sea Environment Research Center, Korea Institute of Ocean Science and Technology) ;
  • Hyo Jin Lee (East Sea Environment Research Center, Korea Institute of Ocean Science and Technology) ;
  • Heegab Lee (East Sea Environment Research Center, Korea Institute of Ocean Science and Technology)
  • Received : 2021.11.13
  • Accepted : 2021.11.23
  • Published : 2021.12.31
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Abstract

Admirandus multicavus Belogurov and Belogurova, 1979, a new record of free-living marine nematode species belonging to family Oncholaimidae is reported based on the specimens collected from the intertidal sediments of Korea. Admirandus multicavus is characterized by the following unique characteristics: cephalic setae (1-2 ㎛ long), spicules (71-126 ㎛ long) and gubernaculum (15-31 ㎛ long), midventral preanal supplementary organ, three glandular duct openings of the Demanian system, and stoma length measuring twice the width. A comparative analysis of the biogeographical and ecological characteristics of Admirandus species is presented. DIC (Differential interference contrast) photomicrographs of the species are also provided herein. This report represents the first taxonomic analysis of the genus Admirandus Belogurov and Belogurova, 1979 discovered from the Korean seawaters.

Keywords

Acknowledgement

The authors appreciate the anonymous reviewers for their helpful comments that greatly improved the manuscript. This research was supported by National Marine Biodiversity Institute of Korea (2021M01100) and by the research projects of the Korea Institute of Ocean Science & Technology(PG52580, PE99913).

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