Noun: amphioxus (amphioxuses,amphioxi) ,am-fee'ók-sus
- Small translucent lancet-shaped burrowing marine animal; primitive forerunner of the vertebrates
"The amphioxus's simple body plan provides insights into early vertebrate evolution";
- lancelet
Derived forms: amphioxi, amphioxuses
Type of: cephalochordate
Part of: genus Amphioxus
Encyclopedia: Amphioxus