MINOR   PSEUDOCOELOMATE   PHYLA

These groups do not possess a true coelom. The fluid-filled space between the body wall and the internal organs is a pseudocoel, or false body cavity, representing persistent embryonic blastocoel . It is bounded only on the outside by Mesodermal tissue, and on the inside by an Endodermal layer. It has no relation with sex cells or with excretion. The minor Pseudocoelomate groups include:

1.Endoprocta

2.Acanthocephala

3.Nematomorpha

4.Rotifera

5.Gastrotricha

6.Kinorhyncha

7.Nematoda