Antennular plate with four strong spines, in a quadrangle. Third maxilliped without exopod. Abdominal somites smooth, without transverse groove.
Colour: carapace brownish or bluish green, almost uniform or slightly, irregularly mottled. Antennae with basal segments greenish, flagella bluish green. Whitish transverse uninterrupted, bands along posterior margin of all abdominal somites very distinct because they have a dark band in front and just behind them.
Inhabits shallow coastal waters (0 to 18 m); among rocks and in cracks and crevices. The animals are nocturnal.