Explanation of Names
Greek myrias (μυριας) '10,000' (i.e., countless) + podos 'foot, leg'
Numbers
four classes, all represented in our area
(1)Identification
Numerous body segments, not differentiated into thorax and abdomen.
In millipedes (class
Diplopoda), the trunk segments are fused into pairs called diplosegments, each with two pairs of legs.
Centipedes (class
Chilopoda) have numerous unfused trunk segments, all but the last two of which have one pair of legs. The first pair of legs is modified into large poison fangs.
Pauropodans (class
Pauropoda) are eyeless and 0.5-1.5 mm long, with branched antennae, 9-11 leg-bearing trunk segments, and a free
telson.
Symphylans (class
Symphyla) are eyeless and 0.5-8.0 mm long, with long, simple antennae and 14 trunk segments, of which the first 12 each have a pair of legs. The penultimate segment has
cerci and a pair of long sensory hairs. The last segment is fused to the
telson.