Mating Grass Squid, Pickfordiateunthis pulchella, Angra, Rio de Janeiro, Brazil.

Mating Grass Squid, Pickfordiateunthis pulchella, Angra, Rio de Janeiro, Brazil.

Grass Squid, Pickfordiateunthis pulchella, Angra, Rio de Janeiro, Brazil.

Grass Squid, Pickfordiateunthis pulchella, Angra, Rio de Janeiro, Brazil.

Grass Squid, Pickfordiateunthis pulchella, Angra, Rio de Janeiro, Brazil.

Sea Gooseberry, Pleurobranchia pileus, predating on Northern Krill, Meganyctiphanes norvegica, Sotra, Hordaland, Norway, North Atlantic Ocean.

Sea Gooseberry, Pleurobranchia pileus, predating on Northern Krill, Meganyctiphanes norvegica, Sotra, Hordaland, Norway, North Atlantic Ocean.

Sea Gooseberry, Pleurobranchia pileus, predating on Northern Krill, Meganyctiphanes norvegica, Sotra, Hordaland, Norway, North Atlantic Ocean.

Hydromedusae, Eutonina indicans, Sørfjorden, Bergen, Hordaland, Norway.

Hydromedusae, Eutonina indicans, Sørfjorden, Bergen, Hordaland, Norway.

Hydromedusae, Eutonina indicans, Sørfjorden, Bergen, Hordaland, Norway.

Helmet jelly, Periphylla periphylla, Deep water jelly fish, Lurefjorden, Lindås, Hordaland, Norway.

Helmet jelly, Periphylla periphylla, Deep water jelly fish, Lurefjorden, Lindås, Hordaland, Norway.

Helmet jelly, Periphylla periphylla, Deep water jelly fish, Lurefjorden, Lindås, Hordaland, Norway.

Juvenile Moon jellyfish, Aurelia aurita, Sørfjorden, Bergen, Hordaland, Norway.

Juvenile Moon jellyfish, Aurelia aurita, Sørfjorden, Bergen, Hordaland, Norway.

Juvenile Moon jellyfish, Aurelia aurita, Sørfjorden, Bergen, Hordaland, Norway.

Juvenile Moon jellyfish, Aurelia aurita, Sørfjorden, Bergen, Hordaland, Norway.

Hydromedusae, Staurophora mertensi, Sørfjorden, Bergen, Hordaland, Norway.

Hydromedusae, Eutonina indicans, Sørfjorden, Bergen, Hordaland, Norway.

Sea gooseberry (Pleurobrachia pileus) and parasitic hyperid amphipod, Hyperia galba, Hafrsfjord, Stavanger, Rogaland, Norway.

Hydro medusa, Sarisa tubulosa, Stokmarknes, Hadsel, Nordland, Norway.

Spiral margarite, Margarites helicinus, Stokmarknes, Hadsel, Nordland, Norway.

Hydro medusa, Sarisa tubulosa, Stokmarknes, Hadsel, Nordland, Norway.

Hydro medusa, Sarisa tubulosa, Stokmarknes, Hadsel, Nordland, Norway.

Hydro medusa, Sarisa tubulosa, Stokmarknes, Hadsel, Nordland, Norway.

Hydromedusae, Dipleurosoma typicum, eating Atlantic herring larvae, Clupea harengus, Stokmarknes, Hadsel, Nordland, Norway.

Hydromedusae, Dipleurosoma typicum, eating Atlantic herring larvae, Clupea harengus, Stokmarknes, Hadsel, Nordland, Norway.

Unidentified hyperid amphipod, Hyperidae, on Korsmanet, Staurophora mertensi, Stokmarknes, Hadsel, Nordland, Norway.

Unidentified hyperid amphipod, Hyperidae, on Korsmanet, Staurophora mertensi, Stokmarknes, Hadsel, Nordland, Norway.

Hydromedusae, Dipleurosoma typicum, eating Atlantic herring larvae, Clupea harengus, Stokmarknes, Hadsel, Nordland, Norway.

Juvenile Comb jelly, Beroe cucumis, Takvam, Sørfjorden, Bergen, Hordaland, Norway.

Juvenile Comb jelly, Beroe cucumis, Takvam, Sørfjorden, Bergen, Hordaland, Norway.

Comb jelly, Beroe cucumis, Takvam, Sørfjorden, Bergen, Hordaland, Norway.

Juvenile Lobed Comb Jelly, Bolinopsis infundibulum, Takvam, Sørfjorden, Bergen, Hordaland, Norway.

Lobed Comb Jelly, Bolinopsis infundibulum, Takvam, Sørfjorden, Bergen, Hordaland, Norway.

Pelagic larvae stage of hydroid, Corymorpha nutans, Takvam, Sørfjorden, Bergen, Hordaland, Norway.

Juvenile Lobed Comb Jelly, Bolinopsis infundibulum, Takvam, Sørfjorden, Bergen, Hordaland, Norway.

Brachiolaria larvae of the The Common Sea Star or Common Starfish, Asterias rubens, Sørfjorden, Takvam, Bergen, Hordaland, Norway.

Brachiolaria larvae of the The Common Sea Star or Common Starfish, Asterias rubens, Sørfjorden, Takvam, Bergen, Hordaland, Norway.

Brachiolaria larvae of the The Common Sea Star or Common Starfish, Asterias rubens, Sørfjorden, Takvam, Bergen, Hordaland, Norway.

Hyperid amphipod, Hyperia galba, on Moon jellyfish, Aurelia aurita, Endo parasite, Sørfjorden, Takvam, Bergen, Hordaland, Norway.

Unidentified hydro medusae, Stokmarknes, Hadsel, Nordland, Norway.

Sea cucumber detail, Beroe cucumis, Gulen, Sogn og fjordane, Norway.

Sea cucumber detail, Beroe cucumis, Gulen, Sogn og fjordane, Norway.

Krill, Euphausiacea ssp, Vaksdal, Hordaland, Norway.

Krill, Euphausiacea ssp, Vaksdal, Hordaland, Norway.

Pelagic stage of Luidia sarsi, Øygarden, Hordaland, Norway.