Calliactis

(from the article `sea anemone`) Sea anemones often live in close association with other organisms. The hermit crab Pagurus arrosor carries a single anemone of the genus Calliactis ... ...nervous systems of these organisms do not preclude prolonged and coordinated responses and integrated behaviour to the simplest stimuli. An ... [2 ...
Found on http://www.britannica.com/eb/a-z/c/8

Calliactis

Calliactis is a genus of sea anemones. Species in this genus are mutually symbiotic with hermit crabs. The anemone gets a place to live and discarded scraps of the crab`s food in exchange for its help in defending the crab. Species within the genus include: ...
Found on http://en.wikipedia.org/wiki/Calliactis
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