coeloms

What Are Examples Of Coelomates? The protostome coelomates (acoelomates and pseudocoelomates are also protostomes) include the mollusks, annelids, arthropods, pogonophorans, apometamerans, tardigrades, onychophorans, phoronids, brachiopods, and bryozoans. Deuterostomes include the chaetognaths, echinoderms, hemichordates, and chordates. What are the are the 4 types of coelomates? Acoelomate: Coelom is absent. The blastocoel is completely occupied by mesoderm.