- the free-swimming, bilaterally symmetrical larva of certain starfishes.
Origin of bipinnaria
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for bipinnaria
Bipinnaria or Branchiolaria: The larval stage of starfishes.The Sea-beach at Ebb-tide
Augusta Foote Arnold
Thus the larv of the starfishes were called Bipinnaria, the larv of the sea-urchins Pluteus, and so on.Elementary Zoology, Second Edition
Vernon L. Kellogg
The bands of cilia have the same general form as in Bipinnaria.
The egg becomes a sort of infusoria, the infusoria becomes a bipinnaria, and this produces the Asterias.The Ocean World:
The presence of two rings instead of one distinguishes the Bipinnaria from the Auricularia.