Homocercal Polynomials正型多项式
homocercal tail正形尾;正型尾
homocercal fin正尾鳍
homocercal fin detail正尾鳍
abbreviated homocercal tail短正尾
ADJ（形容词） of or possessing a symmetrical tail that extends beyond the end of the vertebral column, as in most bony fishes (在大多数硬骨鱼中)具有延伸过脊椎的均称尾部的 [ichthyol] → compare heterocercal