Characteristics of Annelida are as follows:
1. Members of the phylum are bilaterally symmetrical and triploblastic. They have a true coelom.
2. Their body is long cylindrical and segmented.
3. Their body organisation is of organ system level.
4. The alimentary canal is complete.
5. The circulatory system is of open type.
6. Respiration takes place through skin.
For Example Nereis, Pheretima (earthworm), Hirudinaria (Leech), etc.
