a1 Centre for Research on the Ecological Impacts of Coastal Cities, Marine Ecology Laboratories A11, the University of Sydney, New South Wales 2006, Australia
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.
(Received January 09 2007)
(Accepted December 03 2007)
c1 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: firstname.lastname@example.org