I have lived on Pitcairn Island (British OT) for two and a half years and this is the only speciman of this centipede that I have seen, so I don't think that they are very common. None of the locals have seen one like this either! It doesn't show that well in the photos, but the segments have a slight metallic green sheen to them, with a scattering of very small white spikes. The legs are red/pink. The segments are quite flat on the underneath between each pair of legs. The segments are just as deep as they are wide. The modified legs at the rear have quite well developed claws and barbs. Can anybody help me with an ID?