A new species of the jawfish genus Opistognathus from Taiwan, northwestern Pacific Ocean (Perciformes, Opistognathidae)

Authors: Su, Yo DOI: 10.3897/zookeys.1220.123541 Published: Jan. 1, 2024 Source: ZooKeys OpenAlex: View in OpenAlex

Collection: Pensoft Publishers

Keywords: Actinopterygii · Topics: Ichthyology and Marine Biology, Marine and fisheries research, Marine animal studies overview

A new species of jawfish genus Opistognathus is described based on a specimen collected from a beach in the Peng-hu Islands during a cold snap. The new species, Opistognathus cryos sp. nov., differs from its congeners in having a rigid upper jaw, 10–11 + 1 + 19–22 = 31–33 gill rakers, 55 scale rows in lateral series, 10 + 16 = 26 vertebrae, the terminus of the lateral line at the base of the fourth segmented dorsal-fin ray (15th in total rays), the head, nape, dorsal-fin base above lateral line, throat, chest, and pectoral-fin base naked, dorsal fin with eight blotches along its entire base, body with five horizontal dark stripes, nape with two dark blotches in front of the dorsal-fin origin, and a caudal fin with five narrow, dark bands. A detailed description is provided and compared to its similar congeners.

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