Descriptive Features: body evenly vaulted or quite depressed
eyes when present lateral or dorsolateral, usually large, sometimes contiguous or nearly so
antennae well developed, antenna 1 shorter than antenna 2, division between peduncle and flagellum distinct, flagella multi-articulate
mandible incisor narrow, molar process present, lacinia mobilis and spine row (usually) absent
maxilla 1 styliform, with terminal robust setae, maxilla 2 with small distomedial lobe joined to largely lateral lobe, each lobe with 2 or more apical robust setae
maxilliped with endite and epipod, palp with 3 to 5 articles, at least 3 and 4 with large hooked spines
pereopods 1-3 prehensile, pereopods 4-7 ambulatory
pleon with 4-5 free pleonites, plus pleotelson
uropods anterolateral, flattened
pleopodal rami lamellar, without ridges or folding, with plumose marginal setae except on pleopod 5 endopod
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