魚類學名詞

名詞 定義 emarginate Concave; used to describe the posterior border of a caudal fin which is inwardly curved; a caudal fin with a slightly concave margin. 邊緣微凹的 凹面；用來描述尾鰭的後緣向內的彎曲；一尾鰭有微凹的邊緣。