ostracoderms

ostracoderms

美 　英

• 网络甲胄鱼；甲青鱼类动物；甲胄鱼类

词形变化

复数：ostracoderms  

英汉解释

n.	1. an extinct, jawless, mainly freshwater fish, dating from the Silurian and Devonian periods, that had a flat body encased in a layer of protective bony plates and scales

例句

All animals, as a general rule, are provided with eyes, excepting the ostracoderms and other imperfect creatures;

所有的动物，通常来说，都有眼睛，除了甲胄鱼和其它未进化的生物；