Scaphognathite

• (n.) 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.
Found on http://thinkexist.com/dictionary/meaning/scaphognathite/

Scaphognathite

Sca·phog'na·thite noun [ Greek ska`fh boat + gna`qos jaw.] (Zoology) 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.
Found on http://www.encyclo.co.uk/webster/S/26
No exact match found