The Scolopendromorpha, also known as tropical centipedes, possess 21 or 23 body segments (apart from a single species, Scolopendropsis duplicate, which has 39 or 43 segments) with the same number of paired legs. Their antennae have 17 or more segments. The eyes have a fixed number of four ocelli on each side in the family Scolopendridae and one ocellus per side in the genus Mimops, but other families are blind.