hypocercal
常见例句
- hypocercal fin
反歪尾鰭 - hypocercal Caudal fin shape in which the lower lobe is larger and often more posteriorly directed than the upper lobe. Asymmetrical externally as well as internally, e.g. Pteraspides (fossil).
下葉長尾形尾鰭形狀在下麪的葉是較大的，與時常較上葉更曏後突出。不對稱在外部以及內部，例如鰭甲魚綱(化石)。 返回 hypocercal