24.5 Diversity of Life: Animalia

Animalia Diversity.

Phylum Porifera "sponges" - Scypha
Phylum Cnidaria
- Class Hydrozoa
  - Hydra
  - Obelia medusa, colony
- Class Scyphozoa "true jellyfish"
- Class Anthozoa
Phylum Ctenophora "comb jellies"
Phylum Platyhelminthes "flatworms"
- Class Turbellaria : Planaria
- Class Monogenea "flukes" - Gyrodactylus with opisthaptor
- Class Tremotoda "flukes"
  - Schistosoma mansoni cercaria "blood fluke"
  - Fasciola hepatica "sheep liver fluke" adult, cercaria
- Class Cestoda "tape worms" - Taenia pisiformis
Phylum Nematoda "roundworms" - Trichinella spiralis encysted in muscle
Phylum Rotifera
Phylum Mollusca
- Class Gastropoda
- Class Polyplacophora
- Class Bivalvia
- Class Cephalopoda
Phylum Annelida "segmented worms"
- Class Polychaeta "sandworms"
- Class Clitellata
  - Subclass Oligochaeta "earthworms"
  - Subclass Hirudinea "leeches"
Phylum Onychophora "velvet worms"
Phylum Arthropoda
- Subphylum Trilobita
- Subphylum Chelicerata
  - Class Merostomata
  - Class Arachnida
- Subphylum Mandibulata
  - Class Crustacea
  - Class Entognatha, Order Collembola "springtails"
  - Class Diplopoda "millipedes"
  - Class Chilopoda "centipedes"
  - Class Insecta
Phylum Bryozoa - Bugula
Phylum Echinodermata
- Class Stelleroidea
  - Subclass Asteroidea "starfish"
  - Subclass Ophiuroidea "brittlestar"
- Class Echinoidea "sea urchin"
- Class Holothuroidea "sea cucumber"
Phylum Hemichordata "acorn worms"
Phylum Chordata
- Subphylum Urochordata "sea squirts" or "tunicates" - Ascidian tadpole
- Subphylum Cephalochordata - Amphioxus "lancelet"
- Subphylum Craniata