They are Antropods.You can clearly see here the 2 pairs of legs in each segment.Being curious with their slow crawling and curling movements,I took few shots. Check how they curl up when being disturbed.
(Click on images to view larger)
When being disturbed,
Rolled up to protect the legs.
the ability to comouflouge and pretending to be dead.
Ended up in a rounded curl,looks like an elegant bangle.