魚類學名詞

名詞 定義 principal caudal rays The caudal rays which reach the terminal border of the fin; in fishes with branched caudal rays, the count includes the branched rays plus the uppermost and the lowermost rays which are unbranched. 主要尾鰭鰭條 達到鰭末端邊緣的尾鰭鰭條；在具有分枝的尾部鰭條的魚中，計數包括分支鰭條加上最上面的與最下面的不分枝鰭條。