Three Species of Sea Lice (Copepoda: Caligidae) Parasitic on Marine Fishes of Taiwan

三種寄生在台灣海水魚體上的海水魚虱（橈足亞綱：魚虱科）

何汝諧(Ju-Shey Ho) ； 林清龍(Ching-Long Lin)

《臺灣水產學會刊》 30卷4期 (2003/12) Pp. 299-314

https://doi.org/10.29822/JFST.200312.0004

摘要

從台灣大溪漁港採到的三種海水魚體上鑑定出三種分屬三個不同屬的魚虱（魚虱科，吸管口目）。此三種魚虱分別為：寄生在雨印鯛[Zenopsis nebulosus (Temminck & Schlegel)]上的Anuretes quadrilaterus Shiino，1954；寄生在尖身魚予(Thyrsitoides marleyi Fowler)上的Caligus digitatus n. sp.；寄生在日本鬚鱈[Caelorinchus japonicus (Temminck & Schlegel)]上的Lepeophtheirus exiliped n. sp.。本報告為A. quadrilaterus 的第二次被發現的報導。新種C. digitatus 的特徵為具一相當大的生殖節及腹部，匙狀的胸叉，第四對胸腳的外肢(exopod)只有2節，具四支棘，而棘的基部均具指狀突起。另一新種L. exilipes 的特徵為具寬大生殖節，腹部小，第一小顎(maxillule)呈等二叉狀，第四胸腳狹長，其外肢為3分節，外肢遠長於原節(protopod)。

關鍵字

海水魚虱 ； 魚虱屬 ； 寄生橈足類 ； 海水魚 ； 台灣

並列摘要

Three species of sea lice belonging to three genera of the Caligidae (Siphonostoma-toida) were recovered from three species of marine fishes landed at Da-Hsi Fishing Port located on the northeast coast of Taiwan. They are: Anuretes quadrilaterus Shiino, 1954 from Zenopsis nebulosus (Temminck & Schlegel); Caligus digitatus n. sp. from Thyrsitoides marleyi Fowler; and Lepeophtheirus exilipes n. sp. from Caelorinchus japonicus (Temminck & Schlegel). This report represents the second sighting of A. quadrilaterus. The new species C. digitatus is characteristic in having a relatively large genital complex and abdomen, spatula-like tines on the sternalfurca, and 2-segmented exopod of leg 4 carrying a digital process at the base of each of the four outer spines. The other new species, L. exilipes, is distinguished by the possession of a broad genital complex with a small abdomen, a forked maxillule with equal size tines, and slender leg 4 with the 3-segmented exopod distinctly longer then the protopod.

並列關鍵字

sea lice ； Caligidae ； parasitic copepods ； marine fishes ； Taiwan