One of the mouth appendages of Crustacea, situated next behind the maxillæ. Crabs have three pairs, but many of the lower Crustacea have but one pair of them. Called also jawfoot, and foot jaw.

Paired appendage on the posterior and ventral edge of the cephalon. Actually it is the first thoracic appendage, but its body somite is fused into the cephalon, and it is modified for feeding. It consists of the following functional parts: coxa, basis bearing a flattened and setose endite, palp with 5 segments (ischium, merus, carpus, propodus, dactylus), and epipod attached laterally to the coxa.

Claw-like structures located near the mouth on the heads of crustaceans, which are found in pairs. There are three pairs of maxilliped on a typical crustacean.

An appendage that has been modified to manipulate food (particularly to bring food to the mouth and hold them so that other mouth parts can tear off pieces to be chewed and swallowed).

A pair of appendages situated posterior to the maxillae and derived from the first pair of thoracic appendages. Each maxilliped consists of an inner lobe, outer lobe and a palp of two to four articles (although this can be reduced in some amphipod families). See figure.

one of pair of three sets of gnathal appendages lying immediately posterior to second pair of maxillae.