lance·let /ˈlæn(t)slət/
  蝸蝓魚
  lance·let /ˈlæn(t)slət/ 名詞
  文昌魚
  Lance·let n.  Zool. A small fishlike animal (Amphioxus lanceolatus), remarkable for the rudimentary condition of its organs. It is the type of the class Leptocardia. See Amphioxus, Leptocardia.
  ◄ ►
  lancelet
       n : small translucent lancet-shaped burrowing marine animal;
           primitive forerunner of the vertebrates [syn: amphioxus]