（鱼类学）有上片大于下片、脊椎延伸入上片中的尾鳍。

（鱼类学）有上片大于下片、脊椎延伸入上片中的尾鳍。的英文翻译

基本释义

• (ichthyology) possessing a tail with the upper lobe larger than the lower and with the vertebral column prolonged into the upper lobe.