Animal Diversity Web

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Confused by a class within a class or an order within an order? Please see our brief essay.

Additional Information

  • Encyclopedia of Life

Hydra

  • KingdomAnimaliaanimals
    • Animalia: information (1)
    • Animalia: pictures (19219)
    • Animalia: specimens (7269)
    • Animalia: sounds (709)
    • Animalia: maps (42)
    • Eumetazoametazoans
      • Eumetazoa: pictures (19193)
      • Eumetazoa: specimens (7260)
      • Eumetazoa: sounds (709)
      • Eumetazoa: maps (42)
      • Cnidariacorals, sea anemones, jellyfish, and relatives
        • Cnidaria: information (1)
        • Cnidaria: pictures (133)
        • Cnidaria: specimens (7)
        • ClassHydrozoa
          • Hydrozoa: information (1)
          • Hydrozoa: pictures (50)
          • Hydrozoa: specimens (4)
          • OrderAnthoathecata
            • Anthoathecata: pictures (26)
            • FamilyHydridae
              • Hydridae: pictures (1)
              • GenusHydra
                • Hydra: pictures (1)
                • SpeciesHydra americana
                • SpeciesHydra beijingensis
                • SpeciesHydra canadensis
                • SpeciesHydra cauliculata
                • SpeciesHydra circumcincta
                • SpeciesHydra daqingensis
                • SpeciesHydra hadleyi
                • SpeciesHydra harbinensis
                • SpeciesHydra hymanae
                • SpeciesHydra iheringi
                • SpeciesHydra intaba
                • SpeciesHydra intermedia
                • SpeciesHydra japonica
                • SpeciesHydra liriosoma
                • SpeciesHydra madagascariensis
                • SpeciesHydra mariana
                • SpeciesHydra minima
                • SpeciesHydra mohensis
                • SpeciesHydra oligactis
                  • Hydra oligactis: information (1)
                • SpeciesHydra oregona
                • SpeciesHydra oxycnida
                • SpeciesHydra paludicola
                • SpeciesHydra parva
                • SpeciesHydra plagiodesmica
                • SpeciesHydra robusta
                • SpeciesHydra rutgersensis
                • SpeciesHydra salmacidis
                • SpeciesHydra umfula
                • SpeciesHydra utahensis
                • SpeciesHydra viridissima
                • SpeciesHydra vulgaris
                  • Hydra vulgaris: pictures (1)
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Classification

Classification

  • KingdomAnimaliaanimals
    Animalia: information (1)Animalia: pictures (19219)Animalia: specimens (7269)Animalia: sounds (709)Animalia: maps (42)
  • ClassHydrozoa
    Hydrozoa: information (1)Hydrozoa: pictures (50)Hydrozoa: specimens (4)
  • OrderAnthoathecata
    Anthoathecata: pictures (26)
  • FamilyHydridae
    Hydridae: pictures (1)
  • GenusHydra
    Hydra: pictures (1)

Related Taxa

  • SpeciesHydra oligactis
    Hydra oligactis: information (1)

To cite this page: Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2013. The Animal Diversity Web (online). Accessed at http://animaldiversity.org.

Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students. ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control.

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This material is based upon work supported by the National Science Foundation under Grants DUE-0633095 and DRL-0628151.

The ADW Team gratefully acknowledges their support.