What are the characteristics of the earthworm's phylum?

Soft-bodied, segmented worms that belong to the Annelida phylum. Earthworms are also called night crawlers because they burrow down in the ground during the day and come above ground at night to feed. An earthworm has a small brain, a digestive system, a reproductive system and a circulatory system with five pairs of hearts. Earthworms breathe through their skin instead of with lungs.