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Eucinostomus argenteus : ウィキペディア英語版 | Eucinostomus argenteus
The spotfin mojarra (''Eucinostomus argenteus'') is a species of fish belonging to the family Gerreidae. It is so named for the black spot that appears on the anterior part of the dorsal fin. == Description== Mojarras are silvery in color and fairly diamond-shaped. They have smooth scales, anal spines, and forked tails. Mojarras have a single dorsal fin, with spines of decreasing length along the fin. The dorsal and anal fins have scaly sheaths at their bases. A unique feature of the Gerreidae family to which it belongs is the mouth, as the upper jaw extends downward when the mouth is opened and forms a tube. When the mouth is closed, the lower jaw is concave, providing another distinctive feature. The spotfin mojarra has a black spot on the anterior part of the dorsal fin. This species also has a groove on the top of its snout that lack scales, and generally has a more slender body than other species of mojarras. On the upper part of the body, faint, irregular bars are visible.1
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Eucinostomus argenteus」の詳細全文を読む
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