- 正: the first month of the lunar ...
- 尾鳍: caudal fin
- 正尾: equal tail; hemihomocercal tail; homocercality; homocercy
- 尾鳍: aft fin; caidal fin; caudal fin; paddle; skeg; tail fin; tail vane; tailfin
- 短正尾: abbreviated homocercal tail
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