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The Hemidontidae are a small family of freshwater characins found in northern South America, south to the Paraná-Paraguay Basin. The larger species are popular food fish.〔 Hemiodontids have a streamlined body shape; many are fast-swimming, and are able to leap out of the water to escape predators. The adults of all species except ''Micromischodus sugillatus'' have no teeth on their lower jaws. Most species have a round spot on the side of the midbody and a stripe along the lower lobe of the caudal fin. The largest hemiodontids are around in length. ==Genera== The family has around 29 known species, as well as several undescribed species, in five genera: *''Anodus'' *''Argonectes'' *''Bivibranchia'' *''Hemiodus'' *''Micromischodus'' 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「Hemiodontidae」の詳細全文を読む スポンサード リンク
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