Species-specific crab predation on the hydrozoan clinging jellyfish sp. (Cnidaria, Hydrozoa), subsequent crab mortality, and possible ecological consequences.

Here we report a unique trophic interaction between the cryptogenic and sometimes highly toxic hydrozoan clinging jellyfish sp. and the spider crab . We assessed species-specific predation on the medusae by crabs found in eelgrass meadows in Massachusetts, USA.