Most anterior part of anterior mouthparts situated on either side of oral opening [Holdich and Jones, 1983].
Paired mouthparts used to macerate food. Consists of a fairly hard, chitinised region with spines and, often, opposed grinding surfaces. A segmented palp is often present and used to manipulate food [Mauchline, 1984].
Paired, jaw-like cutting, grinding or crushing appendages at the mouth of a decapod and other crustaceans [Bliss, 1982].
The appendages of the 4th head segment. They form a pair of jaws which bite from side to side across the mouth [Warner, 1977].
The first (most anterior) pair of mouthparts [Brusca and Brusca, 2002].
The first pair of mouthparts (or third pair of appendages) [Ingle, 1983].
Crustacea glossary. Natural History Museum of Los Angeles County. 2011.