amphioxus
/ˌæmfɪˈɒksəs/noun
1- a small lancelet which is caught for food in parts of Asia文昌鱼。
1.1
- Genus Branchiostoma (formerly Amphioxus), family Branchiostomidae.文昌鱼属, 文昌鱼科。
词源
mid 19th cent.: modern Latin， from AMPHI- + Greek oxus 'sharp'.