Ceratothoa oxyrrhynchaena (Isopoda: Cymothoidae) parasitic on yellowback sea-bream, Dentex hypselosomus, from Tosa Bay, western Japan, with a summary of the biology of the isopod in Japan.

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Other Title
  • 土佐湾産キダイから得たソコウオノエCeratothoa oxyrrhynchaena（等脚目ウオノエ科）と日本産ソコウオノエに関する知見の集約
  • トサワンサン キダイ カラ エタ ソコウオノエ Ceratothoa oxyrrhynchaena トウキャクモク ウオノエカ ト ニホンサン ソコウオノエ ニ カンスル チケン ノ シュウヤク

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Abstract

A pair of an ovigerous female and an adult male of the cymothoid isopod Ceratothoa oxyrrhynchaena Koelbel, 1878 were found in the buccal cavity of a yellowback sea-bream, Dentex hypselosomus Bleeker, 1854 (Sparidae), from Tosa Bay (western North Pacific Ocean), Kochi Prefecture, Shikoku, Japan. This represents the first record of C. oxyrrhynchaena from Kochi Prefecture, and the species is briefly described. The female and the male were attached to the tongue and beside the female, respectively, in the buccal cavity. Four individuals of polyopisthocotylean monogenean (Platyhelminthes) were found on the brood pouch of the female. The biology of C. oxyrrhynchaena in Japanese waters is summarized based on the literature published between 1878 and 2020.

Journal

  • Nature of Kagoshima

    Nature of Kagoshima 46 329-334, 2020-05-31

    鹿児島県自然環境保全協会

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