One of the mouthparts of a spider or other arachnids, specifically the lobe of the palpal coxa lateral to the labium.
An additional lobe on the inner side of the protopodite of a crustacean limb.
Either of the upper and lower segments of a bird's beak.
Any of various invertebrate mouthparts serving to hold or bite food materials.
One of the anterior pair of mouthparts of an arthropod, designed for holding and cutting food.
The jaw or a jawbone, especially the lower jawbone in mammals and fishes.