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

Kyoji Fujiwara; Hiroyuki Motomura; Gento Shinohara

doi:10.3897/zookeys.1179.109813

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

Zookeys. 2023 Sep 14:1179:353-364. doi: 10.3897/zookeys.1179.109813. eCollection 2023.

Authors

Kyoji Fujiwara¹, Hiroyuki Motomura², Gento Shinohara¹

Affiliations

¹ National Museum of Nature and Science, 4-1-1 Amakubo, Tsukuba, Ibaraki 305-0005, Japan National Museum of Nature and Science Tsukuba Japan.
² The Kagoshima University Museum, 1-21-30 Korimoto, Kagoshima 890-0065, Japan The Kagoshima University Museum Kagoshima Japan.

Abstract

Opistognathusctenionsp. 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 Opistognathustriops, 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.

Keywords: Actinopterygii; Osumi Islands; Ryukyu Islands; dredge; new species; taxonomy.

Kyoji Fujiwara, Hiroyuki Motomura, Gento Shinohara.