caudal peduncle
(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.
Alternative letter-case form of K-pop
plural of rango
A First Nation; an indigenous North American people.
分類学者は、尾柄部（尾びれが付く魚の体の細い部分）を注意深く測定して、二種のよく似た魚を区別した。
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