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Giant kokopu
The giant kokopu (''Galaxias argenteus'') is a species of amphidromous ray-finned fish in the genus ''Galaxias'', found only in New Zealand. It commonly grows to in total length, and the longest recorded was making it the largest member of the family Galaxiidae. It is a mostly lowland species, commonly found in slow-flowing streams, wetlands, lakes, and lagoons.〔 It is has an amphidromous life cycle, with larvae going to sea soon after hatching and returning about four months later as small juveniles, 45–50 mm long.〔 Juvenile giant kokopu form a small part of the annual whitebait catch.〔(【引用サイトリンク】url=https://www.niwa.co.nz/freshwater-and-estuaries/nzffd/NIWA-fish-atlas/fish-species/giant_kokopu )〕
==Description==
Like all galaxiids, this fish lacks scales and has a thick, leathery skin covered with mucus. The body is very broad, appearing round or square in cross-section, with strong, fleshy fins.〔 The mouth is very large.〔 Giant kokopu are typically olive brown, varying from near-black to pale olive.〔 In adults the body is patterned with pale yellow spots, crescents and lines, markings becoming smaller and more profuse as the fish ages; the patterning begins in juveniles with sparse vertical bars and spots along the lateral line. As the fish grows these markings lengthen and then fade out, while the adult markings fade in.〔 Small giant kokopu may be confused with small banded kokopu, but giant kokopu lack a silver mark behind the gills, and their markings never fork or fade out at the top and bottom.〔
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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