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Cerianthus

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Cerianthus is a genus of tube-dwelling anemones in the family Cerianthidae. Members of the genus are found worldwide. They are predators, scavengers and omnivores.[2]

Characteristics

Members of this genus do not have a pedal disc with which to hold themselves in position. Instead they live semi-buried in soft substrate surrounded by a parchment-like tube which they secrete. This surrounds the whole anemone up to its crown of tentacles. Sand grains, debris and shell fragments usually stick to the outer side of the tube. When it is disturbed, the anemone retracts swiftly back into the tube. Some of the larger species can have a column of up to 25 inches (640 mm) in length. The longitudinal muscles in the trunk are powerful but the transverse ones are weak. The outer ring of tentacles are long and tapering. The tube is flexible and the anemone can extend its tentacles a surprisingly long way. The inner ring of tentacles surrounds the central mouth and assists in pushing food inside.[2]

Species

The following species are currently included in the genus according to the World Register of Marine Species:[1]

References

Wikimedia Commons has media related to Cerianthus.
  1. ^ a b van der Land, Jacob (2012). Molodtsova T, Stampar SN (eds.). "Cerianthus Delle Chiaje, 1830". World list of Ceriantharia. World Register of Marine Species. Retrieved 2012-06-30.
  2. ^ a b Friese, U. Erich (1973). Marine Invertebrates. TFH Publications. p. 163. ISBN 0-87666-105-3.
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Cerianthus: Brief Summary

provided by wikipedia EN

Cerianthus is a genus of tube-dwelling anemones in the family Cerianthidae. Members of the genus are found worldwide. They are predators, scavengers and omnivores.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN