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Choreftria shiranui, a new genus and species of cyclopoid copepod (Crustacea: Copepoda) associated with the worm goby from southern Japan, with the proposal of a new family

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Abstract

A new genus and species of cyclopoid copepod, Choreftria shiranui n. g., n. sp. (Crustacea: Copepoda) is described based on an adult female found from the worm goby, Taenioides snyderi Jordan & Hubbs (Actinopterygii: Perciformes: Gobiidae), from mud flats in the Yatsushiro Sea, southern Japan. The new genus is characterized by bearing the following characters in the female: body distinctly segmented cyclopiform with 4-segmented prosome and 6-segmented urosome; genital somite clearly separated from first abdominal somite; antennule 7-segmented; antenna 4-segmented with one fused serrated claw and long claw on second endopodal segment; mandible reduced with one serrated blade; maxillule rod-like with one element; maxilla 2-segmented with recurved terminal claw; maxilliped 2-segmented; legs 1 to 4 biramous with 3-segmented rami. Since the copepod is not attributable to any of the known cyclopoid families, a new family, Choreftriidae n. fam. is established to accommodate Choreftria n. g. LSID urn:lsid:zoobank.org:pub:C1FB9F60-9871-4D4B-A1BF-3202BA24189F.

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Acknowledgements

I acknowledge Reo Koreeda (Kagoshima University) for providing the material, photograph, and biological information and Myles O’Reilly (Scottish Environment Protection Agency) for providing the valuable comments and kind corrections to improve the manuscript.

Funding

Part of this work was supported by the Japan Society for Promotion of Science (JSPS) KAKENHI Grant Number JP15H06517 and JP17K15304; “Establishment of Glocal Research and Education Network in the Amami Islands” project of Kagoshima University and “General and practical research for the restoration and creation of the natural environment in the Ariake Sea and the Yatsushiro Sea” project of Kumamoto University both adopted by the Ministry of Education, Culture, Sports, Science and Technology, Japan. Japan Society for Promotion of Science (JSPS),JP15H06517,DAISUKE UYENO ,JP17K15304,DAISUKE UYENO ,the Ministry of Education,Culture,Sports,Science and Technology, Japan.

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  1. Graduate School of Science and Engineering, Kagoshima University, 1-21-35 Korimoto, Kagoshima, 890-0065, Japan

    Daisuke Uyeno

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  1. Daisuke Uyeno
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DU has carried out all the procedures in the preparation of the manuscript.

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Correspondence to Daisuke Uyeno.

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Uyeno, D. Choreftria shiranui, a new genus and species of cyclopoid copepod (Crustacea: Copepoda) associated with the worm goby from southern Japan, with the proposal of a new family. Syst Parasitol 99, 23–30 (2022). https://doi.org/10.1007/s11230-021-10013-5

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