Phylum Annelida (Segmented Worms)
Phylum Annelida: The Phylum Annelida was created by Lamarck in 1801. It is a phylum of triploblastic, coelomates worms which have bilateral symmetry and metameric segmentation, a preoral prostomium and a post-anal pygidium. Characteristics of Phylum Annelida: The Phylum Annelida contains both free-living and parasitic segmented worms. The free-living forms occur in moist soil, freshwater, brackish …