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The slender rainbow sardine (''Dussumieria elopsoides'') is a small, subtropical, salt water fish of the Indian Ocean and the South China Sea which was first described by Bleeker in 1849. ''Dussumieria hasselti'' and ''Dussumieria productissima'' are synonyms for this same fish. It is a round herring of the family Clupeidae. Until the 1980s in the eastern Mediterranean slender rainbow sardines were frequently confused with the rainbow sardine (''Dussumieria acuta''). Wangratana (1980) demonstrated the differences between ''Dussumieria acuta'' and ''Dussumieria elopsoides'', while Whitehead (1985) and Randall (1996) showed that ''Dussumieria elopsoides'' does occur in the Mediterranean. ==Morphology== * Size: 8 cm. to 18 cm. * Color: silvery on the sides darkening to bluish grey on the back, and lightening to almost white on the underside. * Shape: The slender rainbow sardine has an elongated body, with round belly and a pointed nose. The single dorsal (back) fin is slightly behind midpoint. The tail fin is heavily forked. The scales are very delicate and are easily detached. Like other sardines it has no lateral line, and no scales on the head. The slender rainbow sardine is primarily differentiated from the rainbow sardine, because the slender rainbow sardines do not have tiny radiating striae on the posterior part of their scales. There is some indication that the slender rainbow sardine may tend to have more vertebra than the rainbow sardine.〔(Ishimori, Hiro and Yoshino, Tetsuo ''Larvae and Juveniles of Dussumieria Elopsoides from the Ryukyu Islands, Japan'' The Ichthyological Society of Taiwan )〕 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「Slender rainbow sardine」の詳細全文を読む スポンサード リンク
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