A new species of the fish genus Idiastion (Pisces: Scorpaenidae) from the Kyushu-Palau ridge, Western Pacific
Ishida, M.; Amaoka, K. (1922). A new species of the fish genus Idiastion (Pisces: Scorpaenidae) from the Kyushu-Palau ridge, Western Pacific. Jap. J. Ichthyol. 38(4): 357-360
In: Japanese Journal of Ichthyology. Springer: Tokyo. ISSN 0021-5090; e-ISSN 1884-7374, more
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| Keywords |
Taxa > Species > New taxa > New species
Idiastion pacificum Ishida & Amaoka, 1992 [WoRMS]
Marine/Coastal |
| Abstract |
Idiastion pacificum is described as a new, and second, species of the genus Idiastion. This species is the first of the genus from the Indo-Pacific region. It is characterized by having 25 rather than 24 vertebrae, branched pectoral rays, humpbacked body outline, no occipital pit, a small slit behind the fourth gill arch, a swimbladder, teeth on the palatines and well developed spines on head. It is distinguished from I. kyphos Eschmeyer recorded from Atlantic by having ctenoid scales on nape and maxilla, and cycloid scales on isthmus, breast, anterior part of belly and membranes of anal, lower part of pectoral and pelvic fins. |
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