Schizocoelomates: In schizocoelometes, the body cavity is formed by splitting of mesoderm, e.g. Annelids, arthropods and molluscs.
Enterocoelomates: In enterocoelomates, the body cavity is formed from the mesodermal pouches of archenteron. e.g. Echinoderms, hemichordates and chordates.
