Description of a new species of the genus Peltidium Philippi, 1839 from southern Korea (Copepoda, Harpacticoida) – with a review of the genus

Abstract

Peltidium byungwooi sp. nov. is described in morphological detail from samples collected from the macroalgal beds on rocky bottoms using a light trap from Yeoseodo Island, Korea. Our studies revealed the following morphological diagnostic characters: body strongly chitinized and dorsoventrally flattened; antennule 7-segmented; antenna with allobasis, exopod 2-segmented, bearing one and three setae, respectively; allobasis of maxilla bilobed, drawn out into a small claw with two accessory setae; endopod represented by a small protuberance bearing one seta; swimming legs P2–P4 exp-3 with two outer spines; P2 enp-1 without inner seta; P3 enp-3 with two inner setae; inner endopodal lobe of female P5 with very short outer seta (about 5.4 times shorter than inner one, 3.6 times in male); male P2 enp-3 bearing modified inner distal spine with blunt tip. Phylogenetic, zoogeographic, biological, and ecological characteristics of the family Peltidiidae are reviewed for the genus Peltidium.

http://zoobank.org/urn:lsid:zoobank.org:pub:765492B8-73DF-4650-BDFA-71C73BBD7600

Key words:

• Copepoda
• Harpacticoida
• Korea
• Peltidium byungwooi sp. nov.
• taxonomy
• zoogeography

Acknowledgements

We thank Drs Chang-Rae Lee, Byoung-Kwan Lee, and Sung-Yong Kim of Korea National Park Service for collecting samples from Yeoseodo Island.

Editorial responsibility: Matz Berggren

Additional information

Funding

This research was supported financially by the Discovery of Korean Indigenous Species Project, National Institute of Biological Resources given to SJS. This work was also supported by the project entitled ‘Development of Technology for CO₂ Marine Geological Storage’ funded by the Korean Ministry of Land, Transport, and Maritime Affairs (MLTM) given to JSK. HUD was supported by a National Research Foundation (NRF) of Korea grant funded by the Korean Government (MEST) (NRF-2011-0025412). Finally, the research was a part of the projects titled ‘Development of Korea Operational Oceanographic System’ and ‘Long-term Change of Structure and Function in Marine Ecosystems of Korea’ funded by the MLTM, Korea.