Opistognathus ctenion (Perciformes, Opistognathidae): a new jawfish from southern Japan

By

Fujiwara, Kyoji
Motomura, Hiroyuki
Shinohara, Gento

Type

Article

Date of Publication

2023

Original Publication

ZooKeys

Volume

1179

Pages

353--364

Subjects

Actinopterygii , dredge , new species , Osumi Islands , Ryukyu Islands , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.1179.109813

 

Abstract

Opistognathus ctenionsp. nov. (Perciformes: Opistognathidae) is described on the basis of three specimens (17.3–30.6 mm in standard length) collected from the Osumi and Ryukyu islands, southern Japan in depths of 35–57 m. Although most similar to Opistognathus triops, recently described from Tonga and Vanuatu, the new species differs in mandibular pore arrangement, dorsal- and caudal-fin coloration, fewer gill rakers, and lacks blotches or stripes on the snout, suborbital region and both jaws.