Myriapoda's a subphylum of arthropods containing millipedes, centipedes, and others. The group contains 13,000 species, all of which are terrestrial . Although their name suggests they've myriad (10,000) legs, myriapods range from having over 750 legs (Illacme plenipes) to having fewer than ten legs. They've a single pair of antennae and simple eyes. Myriapods are most abundant in moist forests, where they fulfill an important role in breaking down decaying plant material . The majority are her… (More on Myriapod)