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Morphological abnormalities in the stauromedusa Haliclystus auricula (Cnidaria) and their possible causes

  • Carolina J. Zagal (a1)

Abstract

Morphological abnormalities were observed in a population of the stauromedusa Haliclystus auricula in southern Chile. A total of 144 abnormal specimens was observed out of 3790 Stauromedusae sampled. The following abnormalities are described: individuals lacking arms (73%), with more than eight anchors (11%), more than eight arms (8%), lacking anchors (4%) and one individual with tentacles in abnormal locations. An individual with two peduncles, one with two mouths and one twin-like individual are recorded for the first time in this species. Their possible causes are discussed.

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Corresponding author

Correspondence should be addressed to: Carolina J. Zagal Centre for Research on the Ecological Impacts of Coastal Cities Marine Ecology Laboratories A11 The University of Sydney New South Wales 2006 Australia email: czagal@eicc.bio.usyd.edu.au

References

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Keywords

Morphological abnormalities in the stauromedusa Haliclystus auricula (Cnidaria) and their possible causes

  • Carolina J. Zagal (a1)

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