资料来源 : pyDict

羽腕幼虫

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Bipinnaria \Bi`pin*na"ri*a\, n. [NL., fr. L. bis twice + pinna
   feather.] (Zo["o]l.)
   The larva of certain starfishes as developed in the
   free-swimming stage.