Identifying Hydra Species

  • Richard D. Campbell


Hydra species differ in morphology, development, physiology, and ecology. Repeatability of experiments therefore will depend upon correct identification. I outline a procedure for distinguishing between the types of hydra used most frequently in research. Three major criteria are used: (1) presence or absence of symbiotic algae, (2) arrangement of tentacles on buds, and (3) shape of the holotrichous isorhiza nematocyst.


North American Species Petroleum Jelly Silicone Grease Symbiotic Alga Hydra Systematic 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media New York 1983

Authors and Affiliations

  • Richard D. Campbell
    • 1
  1. 1.Department of Developmental and Cell BiologyUniversity of CaliforniaIrvineUSA

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