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''Chaca'' is the only genus in the catfish family Chacidae. These fish are commonly known as squarehead catfishes, frogmouth catfishes, or angler catfishes. These unusual fish have a sedentary lifestyle and spend much of their time motionless. The name ''Chaca'' is because, when removed from the water, they will rapidly repeat the sound "chaca". Only ''C. chaca'' makes these sounds; the other species do not. == Species == The four currently recognized species in this genus are:〔Ng, H.H. & Kottelat, M. (2012): Chaca serica, ''a new species of frogmouth catfish (Teleostei: Siluriformes) from southern Borneo.'' Zootaxa, 3258: 37–45.〕 * ''Chaca bankanensis'' Bleeker, 1852 (angler catfish) * ''Chaca burmensis'' B. A. Brown & Ferraris, 1988 * ''Chaca chaca'' (F. Hamilton, 1822) (squarehead catfish) * ''Chaca serica'' H. H. Ng & Kottelat, 2012〔 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「Chaca (genus)」の詳細全文を読む スポンサード リンク
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