资料来源 : pyDict

担轮幼虫

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

Trochosphere \Troch"o*sphere\, n. [Gr. ? a wheel + sphere.]
   (Zo["o]l.)
   A young larval form of many annelids, mollusks, and
   bryozoans, in which a circle of cilia is developed around the
   anterior end.