Animal Kingdom

1. Invertebrates

1.1. Cnidarian

1.1.1. a phylum containing over 10,000 species of animals found exclusively in aquatic and mostly marine environments

1.2. Arthropod

1.2.1. an invertebrate animal having an exoskeleton

1.3. Annelid

1.3.1. a large phylum of segmented worms

1.4. Porifera

1.4.1. phylum consisted of sponges

1.5. Echinoderm

1.5.1. a phylum of marine animals

1.6. Mollusk

1.6.1. a large phylum of invertebrate animals

1.7. Platyhelminthes

1.7.1. a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrate animals

1.8. Chordata

1.8.1. phylum consisted of Chordates