THE INVERTEBRATA

1 The Invertebrata
2 Subkingdom Protozoa
3 Subkingdom Parazoa
4 Subkingdom Metazoa
5 Phylum coelenterata
6 Acoelomate Triploblastica
7 Phylum Nemertea
8 Phylum Nematoda
9 Phylum Annelida
10 Phylum Arthropoda
11 Subphylum Onychophora
12 Subphylum Crustacea
13 Subphylum Myriapoda
14 Subphylum Insecta (Hexapoda)
15 Subphylum Arachnida
16 Phylum Mollusca
17 Phylum Polyzoa
18 Phylum Echinodermata
19 Phylum Chordata