Abstract:Instances of predation and scavenging of jellyfish (pelagic Scyphozoa, Hydrozoa and Ctenophora) by benthic invertebrates are reviewed and presented. Sea anemones and decapod crabs are widespread as well as common predators or scavengers of jellyfish. Dead or dying jellyfish are also preyed upon by species of Echinodermata.

A scyllarid lobster phyllosoma larva was observed attached to the siphosome of a prayid siphonophore while SCUBA diving in the Canary Islands. The phyllosoma was straddling the siphosome, which was still alive, with one pereiopodal endopodite per siphosomal cormidia and used its pereiopodal exopodites to pull the siphosome through the water. It did not detach, even after repeated disturbances, and it is proposed that the phyllosoma may be using the prayid siphosome as both food and for protection from predators.

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Records of predation by reptiles, birds and mammals on Cnidaria are reviewed.

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