Float to 15 cm, with crest; many long tentacles hang beneath. Habitat: floating at surface, occasionally inshore. Distribution: pantropical and warm-temperate. Sting severe, but rarely lethal. Specimens with a single main tentacle are thought by some to be a distinct species (Richmond, 1997).
- Richmond, M. (Ed.) (1997). A guide to the seashores of Eastern Africa and the Western Indian Ocean islands. Sida/Department for Research Cooperation, SAREC: Stockholm, Sweden. ISBN 91-630-4594-X. 448 pp. http://www.marinespecies.org/aphia.php?p=sourcedetails&id=6066
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