Labyrinthibranch

from The Collaborative International Dictionary of English v.0.48

Labyrinthibranch \Lab`y*rin"thi*branch\, a. [See {Labyrinth},
   and {Branchia}.] (Zool.)
   Of or pertaining to the {Labyrinthici}. -- n. One of the
   {Labyrinthici}. Labyrinthic