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Article
Published: 2022-09-23

Redescription of Chelidoperca barazeri, with a revised key and literature review to species of Chelidoperca in Taiwan (Perciformes: Serranidae)

Institute of Oceanography, National Taiwan University, Taipei, Taiwan. Department of Aquaculture, National Taiwan Ocean University, Keelung, Taiwan
The Kyoto University Museum, Yoshida-honmachi, Sakyo-ku, 606-8317 Kyoto, Japan
Pisces Taiwan morphology DNA barcoding

Abstract

Chelidoperca barazeri Lee, Lee, Matsunuma & Chen, 2019 is redescribed based on two sub-adult types and 12 additional non-types specimens collected from the type locality and southwestern Taiwan, respectively. The identification of the additional specimens were supported by morphological and/or molecular approaches. C. barazeri is characterized by the following combination of characters: three scale rows between lateral line and base of 6th dorsal-fin spine; pored lateral-line scales 34‒37, modally 36; modally 2+7 developed gill rakers on the upper and lower limb; soft dorsal fin with series of large yellow spots; and the anal-fin with a yellow margin. C. barazeri is most similar to C. tosaensis and can be distinguished from C. tosaensis by: relatively less pored lateral line scales, 34‒37 (vs. 37‒43, modally 39); anal-fin without series of spot; penultimate and the last dorsal- and anal-fin rays in adult not elongated (vs. well elongated in adults); presence of a faint and discontinuous stripe formed by clusters of melanophores along the mid-lateral body when preserved (vs. without or very indistinct). Furthermore, six species of Chelidoperca are confirmed occurring in the Taiwanese water by literature reviews. A key to Chelidoperca from the Taiwanese water is provided.

 

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