about 4" long and ¾" wide, this lively flat millipede was a light gray with a black stripe down the center of its back bordered by light-gray stripes. It curled into a tight coil when picked up, and I noticed that at the bases of its legs it had a collection of small tan mites, each about 1mm across.
It was creeping along in the leaf litter near a stream in humid rain forest along the north bank of the Amazon River
These guys are vegetarians, so there's no fear they'll bite. Two legs per segment means they're millipedes, One leg per segment is a centipede and should be handled carefully. When they walk the row of legs ripples as though a wave were passing through. So cool! Several different millipedes share this common name, so if you know what genus and species it is, please tell me.