| Affiliation: | (1) The Hokkaido University Museum, Faculty of Fisheries, Hokkaido University, 3-1-1 Minato-cho, Hakodate, Hokkaido, 041-8611, Japan;(2) Department of Zoology, National Science Museum, 3-23-1 Hyakunin-cho, Shinjuku-ku, Tokyo, 169-0073, Japan |
| Abstract: | A new species of aploactinid, Cocotropus keramaensis, is described based on a single specimen collected off the Kerama Islands, southern Japan. This new species is separable from other known congeners in the following combination of characters: XII, 10 dorsal fin rays; II, 7 anal fin rays; 13 pectoral fin rays; 26 vertebrae; 4 +8=12 gill rakers; five distinct preopercular spines; upper jaw longer than the lachrymal; single papilla on the posterior portion of the maxilla; outer edge of the lower jaw with four distinct papillae; first sensory pore of the lower jaw on both sides fused; anterior tip of the isthmus reaching to the fifth sensory pore of the lower jaw; and anterior four dorsal spines anterior to the third neural spine. |
