200 – 1,000 m

Twilight zone

From 200 to 1,000 m, the light slowly fades. Many animals here make their own light, and many rise towards the surface at night to feed.

61 species

LanternfishFamily Myctophidae HatchetfishArgyropelecus sp. Jewel squidHistioteuthis sp. PyrosomePyrosoma atlanticum Deep-sea red shrimpAcanthephyra purpurea Velvet belly lanternsharkEtmopterus spinax ViperfishChauliodus sloani Goblin sharkMitsukurina owstoni BarreleyeMacropinna microstoma Vampire squidVampyroteuthis infernalis Giant siphonophorePraya dubia Comb jellyBeroe sp. Giant squidArchiteuthis dux Bluntnose sixgill sharkHexanchus griseus Humboldt squidDosidicus gigas Giant oarfishRegalecus glesne Chambered nautilusNautilus pompilius Firefly squidWatasenia scintillans Glass squidFamily Cranchiidae Glass octopusVitreledonella richardi Dana octopus squidTaningia danae Glowing-arm squidOctopoteuthis deletron Ram’s horn squidSpirula spirula Black-eyed squidGonatus onyx Giant larvaceanBathochordaeus sp. SalpFamily Salpidae Arrow wormPhylum Chaetognatha Giant ostracodGigantocypris sp. PhronimaPhronima sedentaria Giant red mysidNeognathophausia ingens TomopterisTomopteris sp. BristlemouthCyclothone sp. Black scabbardfishAphanopus carbo Megamouth sharkMegachasma pelagios Frilled sharkChlamydoselachus anguineus Cookiecutter sharkIsistius brasiliensis Kitefin sharkDalatias licha Orange roughyHoplostethus atlanticus CoelacanthLatimeria chalumnae IcefishFamily Channichthyidae Boreoatlantic armhook squidGonatus fabricii Antarctic toothfishDissostichus mawsoni Glacial squidPsychroteuthis glacialis Antarctic silverfishPleuragramma antarctica Big red jellyfishTiburonia granrojo Leafscale gulper sharkCentrophorus squamosus Grimaldi scaled squidLepidoteuthis grimaldii Whitecheek lanternsharkEtmopterus alphus Purpleback flying squidSthenoteuthis oualaniensis Ningaloo giant siphonophoreApolemia sp. Giant Arctic copepodCalanus hyperboreus Northern wolffishAnarhichas denticulatus Orange siphonophoreMarrus orthocanna Giant warty squidMoroteuthopsis longimana (formerly Kondakovia longimana) Ice anemoneEdwardsiella andrillae Black prince copepodGaussia princeps Crystal amphipodCystisoma sp. Müller’s pearlsideMaurolicus muelleri Oceanic lightfishVinciguerria nimbaria Swordtail squidChiroteuthis calyx Odd bobtail squidHeteroteuthis dispar