nauplius
/ˈnɔːplɪəs/noun
(pl.nauplii /-aɪ/)
- Zoology the first larval stage of many crustaceans, having an unsegmented body and a single eye【动】（甲壳动物的）无节幼体。
词源
mid 19th cent.: from Latin, denoting a kind of shellfish, or from the Greek name Nauplios, the son of Poseidon.