Scaphognathite

1 definition found

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

  Scaphognathite \Sca*phog"na*thite\, n. [Gr. ska`fh boat +
     gna`qos jaw.] (Zool.)
     A thin leafike appendage (the exopodite) of the second
     maxilla of decapod crustaceans. It serves as a pumping organ
     to draw the water through the gill cavity.
     [1913 Webster]