Carapace rounded, covered with numerous spines of varying size. Flagella of antennules longer than, antennular peduncle, rostrum; absent; bases of antennae separated by a broad antennular plate bearing 2 pairs of unequal and separated principal spines. Abdominal segments without transverse grooves. Legs 1 to 4 without pincers. Body is green-blue with a distinctive pattern of blue-black patches and white lines on carapace; a transverse band of white, bordered by 2 black lines, across each abdominal segment.