|
Lizardfishes〔(or typical lizardfish to distinguish them from the Bathysauridae and Pseudotrichonotidae) 〕 are benthic marine and estuarine bony fishes that comprise the aulopiform fish family Synodontidae. They are found in tropical and subtropical marine waters throughout the world. Lizardfishes are generally small, although the largest species measures about in length. They have slender, somewhat cylindrical bodies, and heads that superficially resemble those of lizards. The dorsal fin is located in the middle of the back, and accompanied by a small adipose fin placed closer to the tail. They have mouths full of sharp teeth, even on the tongue.〔 Lizardfishes are benthic animals that live in shallow coastal waters; even the deepest-dwelling species of lizardfish live in waters no more than deep. Some species in the subfamily Harpadontinae live in brackish estuaries. They prefer sandy environments, and typically have body colours that help to camouflage them in such environments.〔 The larvae of lizardfishes are free-swimming. They are distinguished by the presence of black blotches in their guts, clearly visible through their transparent, scaleless, skin. ==Taxonomy== Three genera of Synodontidae are known to inhabit the western Atlantic including, ''Synodus'', represented by 6 species, ''Saurida'', represented by 4 species, and ''Trachinocephalus'', represented by a single species.〔 〕 The 6 species comprising the genus ''Synodus'' are ''Synodus intermedius'', ''Synodus saurus'', ''Synodus synodus'', ''Synodus foetens'', ''Synodus bondi'' and ''Synodus macrostigmus''.〔 The 4 species comprising the genus ''Saurida'' are ''Saurida umeyoshii'', ''Saurida pseudotumbil'', ''Saurida undosquamis'' and ''Saurida tumbil''. The single species of ''Trachinocephalus'' is ''Trachinocephalus myops''. The extinct ''Argillichthys'' is represented only by a single species, ''A. toombsi'', from the Eocene-aged London Clay Formation.〔 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「Synodontidae」の詳細全文を読む スポンサード リンク
|