Last Updated：2025/11/21
(ichthyology) The narrow part of a fish's body to which the caudal or tail fin is attached. Its proportions, such as the length and breadth, and attached organs, such as spines of surgeonfishes or caudal keels and finlets of Scombridae often are important in descriptions of fish species.
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caudal peduncle
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Source Word
caudal peduncle
Noun
Japanese Meaning
魚の尾びれがつく細い部分、つまり尾びれの付着部位 / 魚類学では、その部分の長さや幅、また付着している構造（例：外側の棘や尾鰭の近くの小鰭など）が、魚種の識別において重要な特徴とされる
（ plural ）
