Body length up to 0.078 in (2 mm) for female, 0.031-0.035 in (0.8-0.9 mm) for male. Body cyclopiform, consisting of ovoid prosome and slender five-segmented urosome. Caudal rami with only four caudal setae. Antennules six-segmented in both sexes, non-geniculate in males. Antenna terminating in single curved claw in both sexes; no trace of exopod present. Mandible with three spinulate blades, lacking palp. Maxillule reduced to lobe bearing three setae. Maxillae comprising triangular proximal segment (syncoxa) and spinulate distal process (basis). Maxillipeds absent in female, four-segmented with terminal claw in male. Swimming legs biramous with three-segmented rami, except exopod of fourth leg two-segmented. Fifth legs with single free exopodal segment bearing three setae.
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