Animal Systematics, Evolution and Diversity

The Korean Society of Systematic Zoology (한국동물분류학회)
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A New Species of Arabella (Annelida, Polychaeta, Oenonidae) from Korean Waters

  • Seong Hun Kang (Educational Research Group for Age-associated Disorder Control Technology, Graduate School, Chosun University) ;
  • Yu Seok Jeong (Educational Research Group for Age-associated Disorder Control Technology, Graduate School, Chosun University) ;
  • Hyun Ki Choi (National Institute of Biological Resources) ;
  • Seong Myeong Yoon (Educational Research Group for Age-associated Disorder Control Technology, Graduate School, Chosun University)
  • Received : 2023.10.05
  • Accepted : 2024.07.14
  • Published : 2024.07.31
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Abstract

A new oenonid polychaete, Arabella turbidiricolor sp. nov., collected from intertidal zone along the coasts of eastern, western, and southern Korea is described. In Korea, this new species might have been confused with Arabella iricolor(Montagu, 1804), the type species of the genus, in having the following characteristics: ventralmost chaeta tapering gradually to guard, MI left robust and right gracile, MII right long, MV both with one tooth and posterior postchaetal lobe shorter than chaetae. However, A. turbidiricolor sp. nov. is readily distinguished from the latter by the following features: ventral maxillary carriers longer than or equal to dorsal, MI both distally falcate, and pygidium with two swollen pads. We provide detailed descriptions and illustrations for the new species in the present study. Also, morphological characteristics of known Arabella species are compared and discussed with a key to them.

Keywords

Acknowledgement

This study was supported by the research funds from Chosun University (2023) and the National Institute of Biological Resources (NIBR), funded by the Ministry of Environment (MoE) of the Republic of Korea (NIBR202304201).

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