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Unlike the other suborders of Amphipoda, hyperiids are exclusively marine and do not occur in fresh water. Hyperiids are distinguished by their large eyes...

contraction of the bell. Larger specimens are frequently found with symbiotic hyperiid amphipods attached to the subumbrella, or even occasionally living inside...

significantly reducing surface reflection. Cystisoma are the largest of hyperiids, reaching lengths over 100 mm. Cystisoma inhabit the dim epipelagic and...

Phronima is a genus of small, deep sea hyperiid amphipods of the family Phronimidae. It is found throughout the world's oceans, except in polar regions...

pelagic invertebrates include krill, copepods, jellyfish, decapod larvae, hyperiid amphipods, rotifers and cladocerans. Thorson's rule states that benthic...

(mouth agape and gills flared) in the midst of a swarm of non-cleaning hyperiid amphipods; the mechanical stimulation from the moving amphipods are thought...

2015). "The thermal stress response to diel vertical migration in the hyperiid amphipod Phronima sedentaria". Comparative Biochemistry and Physiology...

water organisms, it may not be the centre of the eye that is enlarged. The hyperiid amphipods are deep water animals that feed on organisms above them. Their...

is characteristic of crustaceans). The size trend has been observed in hyperiid and gammarid amphipods, copepods, stomatopods, mysids, and planktonic euphausiids...

different diets depending on habitat. Offshore juveniles feed mainly on the hyperiid amphipod Phronima, also taking small numbers of other amphipods, copepods...

colour. This jellyfish is normally infested with Hyperiella dilatata. These hyperiid amphipods appear as white dots on the surface of the bell, and do not appear...

spiracles. Fishes and invertebrates from open water, including salps and hyperiid amphipods, are also eaten in significant quantities. Off South Africa,...

an amphipod crustacean of the suborder Hyperiidea. The 260 species of hyperiid amphipods are large-eyed and planktonic amphipods, whereas gammarid amphipods...

medusae, siphonophores, colonial radiolarians and ctenophores, and most hyperiids are associated with gelatinous animals during some part of their life...

unknown molecule called pteroenone. The sea angel acts as a "guest" for the hyperiid amphipod Hyperiella dilatata, which takes advantage of the protection provided...

but concludes a realistic mode of life is mesopelagic, by analogy with hyperiid amphipods. Further suggests floor-dwelling is also possible, and that the...

(Trachymedusae: Rhopalonematidae) a new species of benthopelagic medusa, host to the hyperiid amphipod Mimonectes spandli (Physosomata: Mimonectidae)." Zootaxa 2671:...

"Ecophysiological implications of vertical migration into oxygen minimum zones for the hyperiid amphipod Phronima sedentaria". Journal of Plankton Research. 37 (5): 897–911...

zooplankton during the summer months, with larval decapods and stomatopods, hyperiid amphipods, pteropods, and larval and juvenile fishes also taken. Studies...

colonies of P. atlanticum. Other amphipods also lived there, including the hyperiids Phronima and Phronimella spp. Predators of P. atlanticum include various...