Izawa, K. (2022). Redescription of Orbitacolax leptoscari (Yamaguti, 1953) (Copepoda, Cyclopoida, Bomolochidae), with descriptions of the late copepodid stages. Crustaceana. 95 (5-6):695-707.

434958

Izawa, K.

2022

95 (5-6):695-707.

Publication

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Orbitacolax leptoscari (Yamaguti, 1953) is redescribed based on specimens of both adults, both sexes of copepodid V, and copepodid IV sex undetermined, all based on specimens recovered from under the scales of Pseudolabrus sieboldi Mabuchi & Nakabo, 1997 and Pteragogus ?agellifer (Valenciennes, 1839) (Labridae), as well as Calotomus japonicus (Valenciennes, 1840) (Scaridae) in Japan. Descriptions of the copepodid V male and copepodid IV sex undetermined are the ?rst time for the genus. The results also show that the number of setal elements on leg 5 and the possession of rostral processes, are useless for sex determination in the copepodid stages of species of this genus.

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