Zoological Studies

Vol. 63, 2024

(update: 2024.1.4)

The Fauna of Parasitic Barnacles (Cirripedia: Rhizocephala) in Korea

Jibom Jung1,2 and Joong-Ki Park1

1Division of EcoScience, Ewha Womans University, Seoul 03760, South Korea. *Correspondence: E-mail: jkpark@ewha.ac.kr (Park)
2School of Biological Sciences, Seoul National University, Seoul 08826, South Korea. E-mail: apociv@gmail.com (Jung)

(Received 31 August 2023 / Accepted 21 December 2023 / Published -- 2024)
Communicated by Benny K.K. Chan

Rhizocephala is a group of endoparasitic barnacles whose morphological characteristics were degenerated, and molecular identification has been actively conducted recently. Despite several recent studies of Korean rhizocephalans, a comprehensive analysis of Rhzicephalan fauna has not yet been investigated. In this study, we conducted morphological and molecular analyses of 64 rhizocephalan samples from 15 decapod hosts sampled across the Korean coast. We found 16 Rhizocephala species of six genera from four Rhizocephala families, i.e., Peltogasterellidae, Peltogastridae, Polyascidae, and Sacculinidae. Combining morphological examination and molecular analysis of mitochondrial cytochrome c oxidase I revealed three new species candidates, i.e., Peltogasterella sp., Peltogaster sp., and Parasacculina sp. 1, and three rhizocephalans, i.e., Parasacculina oblonga, Sacculina angulate, and Sacculina gracillis, whose expanded their distribution range to Korean coast. A synthetic update of Korean Rhizocephala fauna including species checklist, distribution, and taxonomic remarks is also presented.

Key words: Rhizocephala, Cirripedia, Parasitic barnacles, Decapod hosts, Distribution pattern, Korean coast

Citation: Jung J, Park JK. 2024. The fauna of parasitic barnacles (Cirripedia: Rhizocephala) in Korea. Zool Stud 63:01.