Fresh coloration of two paratypes (A, C KAUM–I. 174226, 30.6 mm SL B, D KAUM–I. 174227, 26.2 mm SL) of Opistognathus ctenion, photographed by KAUM A, B lateral views C, D dorsal views.

 
 
  Part of: Fujiwara K, Motomura H, Shinohara G (2023) Opistognathus ctenion (Perciformes, Opistognathidae): a new jawfish from southern Japan. ZooKeys 1179: 353-364. https://doi.org/10.3897/zookeys.1179.109813