abbreviate heterocercal普通歪型尾鳍
heterocercal tail歪型尾
heterocercal fin歪尾鳍
abbreviated heterocercal tail半歪尾
reversed heterocercal tail倒歪尾
hemi-heterocercal fin拟歪尾
heterocercal fin detail歪尾鳍
hemi heterocercal fin拟歪尾
ADJ（形容词） of or possessing a tail in which the vertebral column turns upwards and extends into the upper, usually larger, lobe, as in sharks 歪尾的 [ichthyol] → compare homocercal