Alex Mustard / Red eye medusa (Polyorchis penicillatus) with hitchhiking amphipods (Hyperia medusarum). Browning Pass, Vancouver Island, British Columbia, Canada. North East Pacific Ocean.

Alex Mustard,Alex Mustard / Red eye medusa (Polyorchis penicillatus) with its feeding tentacles extended to catch planktonic prey. Note that the bell of the jelly has hitchhiking amphipods (Hyperia medusarum). Browning Pass, Van...

Alex Mustard / Red eye medusa (Polyorchis penicillatus) with its feeding tentacles extended to catch planktonic prey. Note that the bell of the jelly has hitchhiking amphipods (Hyperia medusarum). Browning Pass, Van...

Stephen Dalton / Ithomid butterfly (Eutresis hyperia) in flight

Thomas Marent / Red Rim (Biblis hyperia) butterfly, Colombia

Pete Oxford / Crimson banded butterfly {Biblis hyperia} captive, Amazonia, Ecuador

David Shale / Mesopelagic Amphipod {Hyperia sp} Atlantic ocean

David Shale / Hyperiid amphipod (Hyperia sp) from Korsfjorden, Norway, caught at around 350m, deep sea Atlantic ocean

David Shale / Hyperiid amphipod (Hyperia sp) from Korsfjorden, Norway, caught at around 350m, deep sea Atlantic ocean

David Shale / Hyperiid amphipod (Hyperia galba) from Korsfjorden, Norway, caught at around 350m, deep sea Atlantic ocean

Norbert Wu / Hyperiid (Hyperia medusarum) rides on long muscular gut of Jellyfish (Sarsia sp) and steals food, Arctic