Bony or cartilaginous structures (tooth-like, blade-like or filament-like) attached to the medial surface of the gill arches and extending inward.

comblike extensions from the inner surfaces of gill arches of plankton feeding fish.

1.) Finger-like processes on the gill arches in fishes and larval amphibians (Peters 1964). 2.) The rod-like projections on the inside of the gill arches.

Knob or comb like projections on the front edge of the gill arch. They serve to protect and clean the gill filaments.

anterior projections on gill arches for food capture

a series of tooth-like bony structures placed along the anterior edge of the gill arches

the part of the sharks mouth that filters out plankton

A series of bony projections attached to the inside of the gill arches, used to strain food from the water.

Gill rakers are bristly structures (the bristles are about 4 inches or 10 cm long) in a filter-feeding shark's mouth that catch plankton which the shark then swallows.