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DOI: http://dx.doi.org/10.11646/zootaxa.4175.1.1

The taxonomic status and sister group relationship of the cardinalfish species Jaydia striatodes (Percomorphaceae: Apogonidae)

ZHENGSEN YU, NA SONG, ZHIQIANG HAN, TIANXIANG GAO, BONIAN SHUI, OFER GON

Abstract


Two similar cardinalfish species, Jaydia striatodes and J. striata, were compared morphologically and genetically, using the fragment of cytochrome oxidase subunit I (COI) gene of the mitochondrial DNA. The results confirmed the validity of both species and their sister group relationship. The species formed well-supported monophyletic clades that were distinctly separate with mean sequence divergence of 12.2%. Jaydia striatodes is distinct in having 4–5 + 12–13 gill rakers; 3 + 11–12 developed gill rakers; 9 gill rakers on the first ceratobranchial; 3–9 weak serration at the angle of preopercular edge; and a usually blackish distal half of anal fin. Jaydia striatodes was recorded for the first time from Beibu Gulf, China, and from Vietnam.

 


Keywords


Pisces, Beibu Gulf, China, Jaydia striata, molecular genetics, morphology, taxonomy

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ISSN 1175-5326 (Print Edition) & ISSN 1175-5334 (Online Edition)
Published by Magnolia Press, Auckland, New Zealand
A founding journal of Biotaxa