Animal Systematics, Evolution and Diversity

The Korean Society of Systematic Zoology (한국동물분류학회)
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Re-description of Sea Spider Cilunculus armatus (Pycnogonida: Ammotheidae) from Korea

  • Lee, Damin (School of Biological Sciences, Seoul National University) ;
  • Park, Jin-ho (School of Biological Sciences, Seoul National University) ;
  • Kim, Won (School of Biological Sciences, Seoul National University)
  • Received : 2020.06.16
  • Accepted : 2020.08.12
  • Published : 2020.10.31
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Abstract

The sea spider genus Cilunculus Loman, 1908 comprises 33 species having short chelifores, separate lateral processes, and a hood structure on the cephalic segment. A pycnogonid species, Cilunculus armatus(Böhm, 1879), was collected from Baekdo Island and Chujado Island, Korea. This species is characterized by having a hood structure on the cephalic segment, separate lateral processes, a low ocular tubercle without eyes, and 3-segmented chelifores. In the examined material, chela shape, arrangement of compound spines on strigilis, and number of heel spines at propodus were different from the previous literatures. Here, we examined C. armatus collected in Korean waters and provided illustrations and pictures in detail.

Keywords

Acknowledgement

We are grateful to Dr. Seonghoon Kim (Chosun University) for providing specimens. We thank Dr. Taeseo Park (National Institute of Biological Resources) for his assistance in the laboratory. This research was supported by a grant from the National Institute of Biological Resources(NIBR), funded by the Ministry of Environment(MOE) of the Republic of Korea (NIBR202002110). It was also supported by the Marine Biotechnology Program of the Korea Institute of Marine Science and Technology Promotion (KIMST) funded by the Ministry of Oceans and Fisheries(MOF)(No. 20170431).

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