<1cm to approx 3m
Well-defined head with sensory and feeding appendages
Each body segment usually bears 1 pair of parapodia with bristles
A small number of polychaetes have been identified as threatened in the Indo-Pacific region, due to over harvesting and habitat loss.
Did you know?
Several groups of polychaetes undergo mass spawning, relying on environmental factors such as water temperature and light levels for the right cue.