|
''Coccothraustes'' is a genus of the finch family (Fringillidae) that contains a single species: * Hawfinch – ''Coccothraustes coccothraustes'' The name of the genus ''Coccothraustes '' was introduced by the French zoologist Mathurin Jacques Brisson in 1760 based on tautonymy and the binomial name ''Loxia coccothraustes'' of Carl Linnaeus. The hawfinch (''Coccothraustes coccothraustes'') has long been recognised as being closely related to other grosbeaks in the genera ''Mycerobas'', ''Hesperiphona'' and ''Eophona''. This was confirmed by molecular genetic studies that showed that the four genera form a well-defined clade. Some authorities have grouped all the species into a single large ''Coccothraustes'' genus but this is usually split. Clements and colleagues include the evening grosbeak and the hooded grosbeak in ''Coccothraustes'' but the International Ornithologists' Union retain only the hawfinch in the genus.〔 Molecular genetic studies have shown the finches with large beaks in the ''Chaunoproctus'', ''Rhynchostruthus'' and ''Neospiza'' genera are not closely related. The similar bill morphology is the result of convergent evolution due to the similar feeding behaviour.〔 ==References== it:Coccothraustes 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「Coccothraustes」の詳細全文を読む スポンサード リンク
|