Actinotrocha

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Actinotrocha \Ac`ti*not"ro*cha\, n. pl. [NL.; Gr. ?, ?, a ray +
     ? a ring.] (Zool.)
     A peculiar larval form of {Phoronis}, a genus of marine
     worms, having a circle of ciliated tentacles.
     [1913 Webster]