Cnidaria (phylum)

Scope note: Phylum of aquatic invertebrates typically having a simple tube-shaped or cup-shaped body, which includes sea anemones, hydras, jellyfish, and corals. There are over 9000 species living today. More or less radially symmetrical marine invertebrates having a single internal cavity serving for digestion, excretion, and other functions, and usually a circle of tentacles around the mouth for catching prey, some provided with paralyzing stings.

300265921

NT7 300249423 jellyfish
NT7 300310162 Anthozoa (class) [+~]
- NT8 corals (animals) [+~]
  - NT9 star coral
- NT8 Actiniaria (order)
- NT8 Ceriantharia (order) [+~]
  - NT9 Cerianthidae (family) [+~]
    - NT10 Cerianthus (genus) [+]
- NT8 Alcyonaria (subclass) [+~]
  - NT9 Alcyonacea (order) [+~]
    - NT10 Coralliidae (family) [+]
NT7 300311092 Hydrozoa (class) [+~]
- NT8 Anthomedusae (order) [+~]
  - NT9 Hydridae (family) [+~]
    - NT10 Hydra (genus)
NT7 300311093 Scyphozoa (class)
NT7 300311094 Cubozoa (class)

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