Jellyfish
Guides
Hyperiidae
Hyperiidae is a family of amphipod crustaceans established by Dana in 1852. Members of this family are exclusively marine and are characterized by their obligate associations with gelatinous zooplankton, including jellyfish (Scyphozoa) and ctenophores. The family contains eight recognized genera: Euthemisto, Hyperia, Hyperiella, Hyperoche, Laxohyperia, Parathemisto, Pegohyperia, and Themisto. These amphipods are frequently documented as parasites or associates of their gelatinous hosts in pelagic marine environments.