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Cookeolus japonicus
''Cookeolus japonicus'' is a species of fish in the family Priacanthidae, the bigeyes and catalufas. It is the only species of ''Cookeolus'' except for ''C. spinolacrymatus'', an extinct Late Pliocene fish known from a fossil specimen collected in Okinawa, Japan.〔Kon, T. and T. Yoshino. (1997). (''Cookeolus spinolacrymatus'' sp. nov., a Late Pliocene priacanthid fish from Okinawa, Japan. ) ''Ichthyological Research'' 44(4) 347-56.〕
''C. japonicus'' is found throughout the tropical and subtropical oceans, except the East Atlantic. In the Indo-Pacific its distribution extends from South Africa to Japan to Australia, in the eastern Pacific from Mexico to Peru, in the West Atlantic from Canada to Argentina, and at Saint Helena in the South Atlantic .〔Froese, R. and D. Pauly, Eds. (''Cookeolus japonicus''. ) FishBase. 2011.〕 Common names for the fish include longfinned bullseye, deepwater bullseye, big-fin bigeye (English), ''buloog'' (Afrikaans), ''deek'' (Arabic), ''baga-baga'' (Cebuano), ''siga'' (Tagalog), ''beauclaire longue aile'' (French), ''chikame-kintoki'' (Japanese), ''fura-vasos alfonsim'' (Mozambican Portuguese), and ''catalufa aleta larga'' (Spanish).〔(Common names of ''Cookeolus japonicus''. ) FishBase.〕
==Description==
This species reaches up to long, but is more often around . Specimens weighing have been noted.〔 Fish of this family are known for their thick scales and large eyes, which take up about half the length of the head. This species is the largest in the Priacanthidae. It can also be distinguished from others in the family by its long pelvic fins. These are longest, relative to body size, in smaller individuals. The tail fin is rounded. The fish has an elongated oval shape as an adult and is laterally compressed. It is red in color, and all the fins may be yellowish except the pectorals, which are pink to colorless. The membranes between the dorsal spines may be slightly darkened to totally black, and the long pelvic fins may be quite dark. The juvenile is not well known but it is likely silver in color. The appearance of the fish shows some geographical variation, mainly in size.〔Starnes, W. C. (1988). (Revision, phylogeny and biogeographic comments on the circumtropical marine percoid fish family Priacanthidae. ) ''Bulletin of Marine Science'' 43(2) 117-203.〕
The life span of the fish is up to about 9 years.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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