用气泡或腮呼吸生活于南半球的多骨鱼类；有时被归为总鳍鱼类。
Bony fishes of the southern hemisphere that breathe by a modified air bladder as well as gills; sometimes classified as an order of crossopterygii.
用气泡或腮呼吸生活于南半球的多骨鱼类；有时被归为总鳍鱼类。
Bony fishes of the southern hemisphere that breathe by a modified air bladder as well as gills; sometimes classified as an order of crossopterygii.
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