Bathypelagic fish - Fish living in the bathypelagic environment

Stemonosudis siliquiventer

Hammerjaw - The large head is dominated by a massive, truncated lower jaw and large, high-set eyes.

Scopelosaurus adleri

Coccorella atrata

Lestidiops indopacifica

Zugmayer's pearleye

Ahliesaurus berryi

Bigfin pearleye

Stemonosudis gracilis

Scopelarchoides climax

Daggertooth - Anotopterus vorax or south ocean daggertooth is a daggertooth described in 1913 by Regan.

Lestidium bigelowi

Uncisudis longirostra

Scopelarchoides nicholsi

Hoplostethus crassispinus

Evermannella megalops

Stemonosudis molesta

Order Beryciformes

Common fangtooth - While understandably named for their disproportionately large, fang-like teeth and unapproachable visage, fangtooths are actually quite small and harmless to humans: the larger of the two species, the common fangtooth, reaches a maximum length of just 16 centimetres ; the shortthorn fangtooth is about half this size.

Longwing spinyfin

Parinoberyx horridus

Hoplostethus tenebricus

Atlantic roughy

Hoplostethus marisrubri

Paratrachichthys sajademalensis

Hoplostethus rubellopterus

Hoplostethus metallicus

Hoplostethus fragilis

Hoplostethus abramovi

Aulotrachichthys latus

Diretmoides veriginae

Parmops echinatus

Paratrachichthys argyrophanus

Slimy head

Hoplostethus melanopterus

Hoplostethus druzhinini

Shorthorn fangtooth - While understandably named for their disproportionately large, fang-like teeth and unapproachable visage, fangtooths are actually quite small and harmless to humans: the larger of the two species, the common fangtooth, reaches a maximum length of just 16 centimetres ; the shortthorn fangtooth is about half this size.

Parin's spiny fin

Common roughy - The sandpaper fish or common roughy, Paratrachichthys trailli, is a slimehead belonging to the family Trachichthyidae, found in southern Australia and southern New Zealand at depths of between 50 and 400 m.

Hoplostethus shubnikovi

Hoplostethus mikhailini

Flintperch

Hoplostethus confinis

Aulotrachichthys prosthemius

Paratrachichthys fernandezianus

Hoplostethus rifti

Slimy head

Hoplostethus fedorovi

Order Carcharhiniformes

Spatulasnout cat shark - The spatulasnout cat shark, Apristurus platyrhynchus, is a cat shark of the family Scyliorhinidae found in the western Pacific between latitudes 35° N and 1° N.

Pale spotted catshark - The pale spotted spotted catshark, Asymbolus pallidus, is a cat shark of the family Scyliorhinidae found only off Queensland, at depths of between 225 and 400 m.

Apristurus australis - The pinocchio catshark, Apristurus australis, is a species of fish in the Scyliorhinidae family.

Whitefin swellshark - Early specimens of the whitefin swellshark were often mistaken for the Australian swellshark or the draughtsboard shark .

Black roughscale catshark - The flatnose cat shark, Apristurus acanutus, is a cat shark of the family Scyliorhinidae found in the northwest Pacific Ocean off Zhujiang, South China Sea.

Narrowbar swellshark - In 1994, Commonwealth Scientific and Industrial Research Organisation chief researchers Peter Last and John Stevens applied the provisional name Cephaloscyllium "sp.

Haploblepharus kistnasamyi - This species was once considered to be the "Natal" form of the puffadder shyshark, which differed from the main "Cape" form in appearance and habitat preferences.

Stout catshark - Apristurus fedorovi, or Federov's catshark, is a cat shark of the family Scyliorhinidae.

Springer's sawtail cat shark - The Springer's sawtail cat shark, Galeus springeri, is a cat shark of the family Scyliorhinidae found in the western central Atlantic from Lesser Antilles, Puerto Rico, the north coast of Hispaniola, and Cuba, at depths of between 450 and 700 m.

Australian reticulate swellshark - Once thought to be the same species as the reticulated swellshark of Vietnam and Hainan, the Australian reticulate swellshark was described as a separate species by William White and David Ebert in a 2008 Commonwealth Scientific and Industrial Research Organisation publication.

Fat catshark - Apristurus pinguis, the fat catshark, is a cat shark of the family Scyliorhinidae found only in deep water in the East China Sea.

White ghost catshark - Apristurus aphyodes, the white ghost catshark, is a cat shark of the family Scyliorhinidae found in deep water in the northeast Atlantic between latitudes 57°N and 58°N.

Apristurus internatus - Reproduction is oviparous.

Saddled swellshark - In 1994, Commonwealth Scientific and Industrial Research Organisation chief researchers Peter Last and John Stevens recognized five undescribed swellsharks in Australian waters.

Order Cetomimiformes

Vitiaziella cubiceps

Pink flabby whalefish

Parataeniophorus brevis

Redmouth whalefish - Like the plant genus of the same name, this genus is named after Guillaume Rondelet.

Gyrinomimus simplex

Procetichthys kreffti

Cetomimus kerdops

Ataxolepis apus

Flabby whalefish - Gyrinomimus grahami is a flabby whalefish of the genus Gyrinomimus, found in all the southern oceans.

Savage's birdsnouted whalefish

Danacetichthys galathenus

Cetomimus gillii

Parataeniophorus gulosus

Trunov southern cetomimid

Megalomycter teevani

Ataxolepis henactis

Cetomimus picklei

Ditropichthys storeri

Cetichthys indagator

Gyrinomimus myersi

Order Chimaeriformes

Gal

Hydrolagus lusitanicus

Order Gadiformes

Patagonian codling

Arrowtail

Hymenocephalus antraeus

Roundhead grenadier

Kumba hebetata

Pugnose grenadier

Coelorinchus melanosagmatus

Coryphaenoides striaturus

Dusky rattail

Gadomus multifilis

Coryphaenoides microps

Rhynchogadus hepaticus

Gadella brocca

Grenadier

Bristly grenadier

Physiculus therosideros

Macrouroides inflaticeps

Narrowsnout grenadier

Bluntnose grenadier

Physiculus nigriscens

Finescale mora

Bighead mora

Graceful grenadier - This is one of the smallest of the rattails, growing to no more than 13 cm in length.

Kumba musorstom

Fragile grenadier

Coelorinchus vityazae

Slendertail grenadier

Muraenolepis andriashevi

Coryphaenoides semiscaber

Kumba calvifrons

Gadomus capensis

Coryphaenoides mcmillani

Kaiwi Channel grenadier

Guttigadus nudicephalus

Physiculus roseus

Bighead grenadier

Nezumia cyrano

Couch's whiting - Exploitation of blue whiting only started in the 1970s.

Hymenocephalus aterrimus

Bathypelagic rattail

Kumba japonica - This fish reaches a length of up to 18 cm.

Sphagemacrurus pumiliceps

Coelorinchus nazcaensis

Myers' grenadier

Tripterophycis svetovidovi

Grenadier fish

Whitson's grenadier

Gadella edelmanni

Coryphaenoides grahami

Hymenocephalus striatulus

Kumba punctulata

Morid cod - The slender codling or slender cod, Halargyreus johnsonii, is a morid cod, the only species in the genus Halargyreus.

Kumba gymnorhynchus

Smallhead moray cod

Coryphaenoides spinulosus

Threadfin grenadier

Echinomacrurus mollis

Mediterranean grenadier

Trachonurus sentipellis

Physiculus sazonovi

Carmine grenadier

Shortbeard grenadier

Javelin fish - The thorntooth grenadier or javelin fish, Lepidorhynchus denticulatus , is a rattail, the only member of the genus Lepidorhynchus, found around southern Australia and New Zealand, at depths of between 200 and 1,000 m.

Blunt-nosed grenadier

Physiculus longifilis

Arctic cod - It is widely distributed in the western part of the Arctic basin, also the northwest and northeast coasts of Greenland.

Ventrifossa paxtoni

Naked snout rattail

Laemonema melanurum

Squalogadus modificatus

Dogtooth grenadier

Hymenocephalus barbatulus

Berry's grenadier

Kumba maculisquama

Sphagemacrurus richardi

Coelorinchus trunovi

Sturgeon-like grenadier fish

Bighead grenadier - The rudis rattail, Coryphaenoides rudis, is a fish of the family Macrouridae, found around the world in tropical and subtropical oceans, at depths between 600 and 2,300 m.

Goggly-eyed cod - The common mora, Mora moro, is a small deep-sea fish, the only species in the genus Mora.

Bathygadus spongiceps

Doublethread grenadier

Coryphaenoides macrolophus

Bluntsnout grenadier

Physiculus peregrinus

Coryphaenoides camurus

Order Lampriformes

Sticklebacks - It is found in deep subtropical and tropical waters around the world, living at depths during the day and making nightly vertical migrations to feed on plankton.

Scalloped ribbon fish - The scalloped ribbonfish, Zu cristatus, is a ribbonfish of the family Trachipteridae found circumglobally in all oceans, at depths down to 90 m.

Unicorn crestfish - The unicorn crestfish or unicornfish, Eumecichthys fiski, is a very rare, little-known species of crestfish in the family Lophotidae, and the only member of its genus.

Ribbon fish - Trachipterus trachypterus, is a ribbonfish of the family Trachipteridae, found in tropical and subtropical seas worldwide.

Taper-tail ribbonfish

Order Lophiiformes

Gigantactis longicirra

Bufoceratias thele

Linophryne escaramosa

Phyllorhinichthys balushkini - P.

Bulbous dreamer

Oneirodes thysanema

Oneirodes sabex

Prickly dreamer - Spiniphryne, also called spiny dreamers, is a genus of deep-sea anglerfish in the family Oneirodidae, containing two species.

Lasiognathus amphirhamphus - The closest relative of Lasiognathus is Thaumatichthys, which also has enlarged and hinged premaxillaries, escal denticles, and a branched upper operculum.

Gigantactis gracilicauda

Danaphryne nigrifilis

Linophryne bipennata

Oneirodes alius

Short-rod anglerfish

Gigantactis microphthalmus

Melanocetus eustalus

Linophryne andersoni

Tyrannophryne pugnax - The most distinctive feature of T.

Torpedo batfish

Oneirodes pietschi

Himantolophus paucifilosus

Gigantactis balushkini

Oneirodes melanocauda

Himantolophus macroceratoides

Chirophryne xenolophus

Acentrophryne dolichonema

Dolopichthys jubatus

Caulophryne polynema

Linophryne quinqueramosa

Oneirodes heteronema

Himantolophus cornifer

Oneirodes cristatus

Prickly anglerfish - The prickly anglerfish, Himantolophus appelii, is a footballfish of the family Himantolophidae, found around the world in the southern oceans , in deep water.

Chaenophryne ramifera

Plainchin dreamarm

Gigantactis microdontis

Linophryne algibarbata

Linophryne macrodon

Linophryne densiramus

Oneirodes basili

Haplophryne mollis - Some anglerfishes of the superfamily Ceratioidei employ an unusual mating method.

Oneirodes theodoritissieri

Lasiognathus saccostoma - The closest relative of Lasiognathus is Thaumatichthys, which also has enlarged and hinged premaxillaries, escal denticles, and a branched upper operculum.

Gigantactis kreffti

Gigantactis gibbsi

Ctenochirichthys longimanus

Cosmopolitan whipnose

Himantolophus multifurcatus

Two-rod anglerfish

Lophodolos indicus

Horned lantern fish - The horned lantern fish occurs in the Pacific Ocean from Baja California south to the Marquesas Islands and the Gulf of California.

Linophryne trewavasae

Oneirodes macronema

Atlantic footballfish

Rhynchactis macrothrix

Caulophryne pelagica

Linophryne pennibarbata

Oneirodes flagellifer

Himantolophus brevirostris

Puck pinnata

Oneirodes whitleyi

Photocorynus spiniceps - The known mature male individuals are 6.

Gigantactis macronema

Bufoceratias wedli

Linophryne indica

Phyllorhinichthys micractis - P.

Bulbous dreamer

Smooth dreamer

Oneirodes anisacanthus

Oneirodes schistonema

Lasiognathus beebei - The closest relative of Lasiognathus is Thaumatichthys, which also has enlarged and hinged premaxillaries, escal denticles, and a branched upper operculum.

Gigantactis herwigi

Linophryne brevibarbata

Gigantactis paxtoni

Blackdevil - The humpback anglerfish or blackdevil, Melanocetus johnsonii, is a deep-sea anglerfish in the family Melanocetidae, found in tropical to temperate parts of all oceans at depths of up to 2,000 meters .

Deepsea angler - Linophryne arborifera, or illuminated netdevil, is an anglerfish of the family Linophrynidae, found in all tropical and subtropical oceans at depths below 1,000 m .

Oneirodes plagionema

Himantolophus pseudalbinares

Gigantactis elsmani

Oneirodes micronema

Himantolophus mauli

Acentrophryne longidens

Oneirodes kreffti

Himantolophus crinitus

Dolopichthys karsteni

Linophryne racemifera

Pietschichthys horridus

Linophryne maderensis

Oneirodes dicromischus

Himantolophus azurlucens

Bufoceratias shaoi

Linophryne digitopogon

Oneirodes bradburyae

Haplophryne triregium

Spiny dreamer

Lasiognathus waltoni - The closest relative of Lasiognathus is Thaumatichthys, which also has enlarged and hinged premaxillaries, escal denticles, and a branched upper operculum.

Pentherichthys venustus

Gigantactis longicauda

Oneirodes rosenblatti

Spiniphryne duhameli - Spiniphryne, also called spiny dreamers, is a genus of deep-sea anglerfish in the family Oneirodidae, containing two species.

Gigantactis golovani

Gigantactis watermani

Linophryne bicornis

Stargazing seadevil

Smooth anglerfish

Himantolophus nigricornis

Diceratias trilobus

Oneirodes macrosteus

Himantolophus macroceras

Rhynchactis microthrix

Caulophryne pietschi

Linophryne polypogon

Oneirodes haplonema

Himantolophus compressus

Dolopichthys dinema

Oneirodes clarkei

Himantolophus albinares

Lasiognathus intermedius - The closest relative of Lasiognathus is Thaumatichthys, which also has enlarged and hinged premaxillaries, escal denticles, and a branched upper operculum.

Gigantactis ios

Gigantactis savagei

Murray's abyssal anglerfish

Linophryne arcturi

Oneirodes posti

Pacific footballfish

Gigantactis gargantua

Himantolophus melanolophus

Linophryne sexfilis

Oneirodes luetkeni

Himantolophus danae

Dolopichthys pullatus

Rhynchactis leptonema

Linophryne parini

Nightmare dreamer

Himantolophus borealis

Order Myctophiformes

Taaningichthys paurolychnus

Symbolophorus rufinus

Bolinichthys nikolayi

Gonichthys venetus

Andersen's lantern fish

Skinnycheek lanternfish

Spothead lantern fish

Lampanyctus tenuiformis

Electron subantarctic

Diaphus garmani

Doflein's false headlightfish

Nannobrachium idostigma

Gymnoscopelus fraseri

Diaphus dehaveni

Protomyctophum luciferum

Bolin's lantern fish

Lampadena pontifex

Arctic telescope

Nannobrachium crypticum

Taaningichthys minimus

Diaphus basileusi

Neoscopelus microchir

Gilbert's large lantern fish

Diaphus nielseni

Wisner's lantern fish

Hygophum bruuni

Barnards lanternfishes - Symbolophorus barnardi is a lanternfish in the family Myctophidae, found circumglobally in the southern hemisphere between about 30° S and 11° S at depths of between 100 and 800 m.

Mead's lanternfish

Metelectrona ahlstromi

Hintonia candens

Myctophum lychnobium

Golden-nosed lantern fish

Lampanyctus simulator

Taaning's lantern fish

Brokenline lanternfish

Bigeye lanternfish

Black lantern fish

Thickhead lanternfish

Smallfin lanternfish

Blue lanternfish

Diaphus longleyi

Warming's lantern fish - Warming's lantern fish, Ceratoscopelus warmingii, is a lanternfish of the family Myctophidae, found circumglobally in both hemispheres, at depths of between 700 and 1,500 m during the day and between 20 and 200 m at night.

Laura's lantern fish

Myctophum fissunovi

Lampanyctus turneri

Electrona paucirastra - Electrona paucirastra is a lanternfish in the family Myctophidae, found around the globe in the southern hemisphere between 35° S and 48° S.

Nannobrachium indicum

Gymnoscopelus hintonoides

Pacific blackchin

Diaphus drachmanni

Pig-headed lantern fish

Gymnoscopelus opisthopterus

Mirror lanterfish

Protomyctophum bolini

Nannobrachium cuprarium

Slendertail lanternfish

Evermann's lantern fish

Popeye lampfish

Lantern fish

Spinycheek lanternfish

Diaphus megalops

Metelectrona ventralis

Fragile lantern fish

Diaphus thiollierei

Nannobrachium phyllisae

Gymnoscopelus braueri

Diaphus dahlgreni

Diaphus similis

Spinytail lampfish

Protomyctophum gemmatum

Lampanyctus

Transparent lantern fish

Protomyctophum andriashevi

Nannobrachium bristori

Reinhardt's lantern fish

Large-scaled lantern fish

Diaphus arabicus

Tarletonbeania taylori

Chubby flashlightfish

Nannobrachium wisneri

Topside lampfish

Hudson's lanternfish

Krefftichthys anderssoni

Diaphus whitleyi

Gymnoscopelus microlampas

Diaphus ehrhorni

Diaphus taaningi

Lampanyctus iselinoides

Protomyctophum parallelum

Short-headed lantern fish

Diaphus richardsoni

Lampadena urophaos atlantica

Protomyctophum chilense

Nannobrachium fernae

Order Notacanthiformes

Halosaurus attenuatus

Aldrovandia rostrata

Halosaurus parvipennis

Polyacanthonotus africanus

Aldrovandia gracilis - Aldrovandia gracilis is a species of fish in the Halosauridae family.

Halosaurus carinicauda

Bonapart's spiny eel

Order Ophidiiformes

Pelagic brotula

Brotulotaenia brevicauda

Barathronus parfaiti

Barathronus bicolor

Aphyonus brevidorsalis

Parabrotula plagiophthalmus

Brotulotaenia nigra

Marshall slopebrotula

Barathronus multidens

Parabrotula tanseimaru

Apagesoma delosommatus

Thalassobathia nelsoni

Lamprogrammus niger

Bassozetus zenkevitchi

Barathronus pacificus

Barathrites parri

Bony-eared assfish

Aphyonus bolini

Brotulotaenia nielseni

Two-spined slopebrotula

Barathronus diaphanus

Abyssobrotula galatheae - Though uncommon, this species is known from the tropical and subtropical waters of all oceans.

Apagesoma edentatum

Nielsen's catetyx

Order Osmeriformes

Krefft's smooth-head

Holtbyrnia ophiocephala

Dolichopteryx binocularis

Salmon smooth-head

Snubnose blacksmelt

Holtbyrnia conocephala

Fiolenti's smooth-head

Maulisia acuticeps

Bathylagus niger

Nansenia sanrikuensis

Rouleina livida

Threadfin smooth-head

Mentodus perforatus

Asquamiceps caeruleus

Bathylagichthys longipinnis

Bluethroat argentine

Mentodus crassus

Bathytroctes squamosus

Leptoderma affinis

Bathytroctes macrognathus

Schnakenbeck's searsid

Searsioides multispinus

California smoothtongue

Loosescale smooth-head

Nansenia ahlstromi

Mentodus longirostris

Bajacalifornia microstoma

Legless searsid

Smallscale smooth-head

Bajacalifornia aequatoris

Agassiz' smooth-head

Bathytroctes elegans

Dolichopteryx brachyrhynchus

Werner's smooth-head

Winteria telescopa

Koefoed's searsid

Teardrop tubeshoulder

Bathylagoides argyrogaster

Greenland argentine

Softskin smooth-head

Bathytroctes zugmayeri

Abyssal smooth-head

Mentodus eubranchus

Leptoderma lubricum

Koefoed's smooth-head

Normichthys yahganorum

Bajacalifornia erimoensis

Bruce's argentine

Bluntsnout smooth-head - The bluntsnout smooth-head, black slickhead, cope's bluntsnout smooth-head, or Atlantic gymnast, Xenodermichthys copei, is a slickhead of the genus Xenodermichthys, found in the Atlantic, Indian, and Pacific oceans, and the Tasman Sea, at depths of 100 to 2,600 m.

Dolichopteryx rostrata

Starry smooth-head

Streaklight tubeshoulder

Dolichopteryx anascopa

Matsuichthys aequipinnis

Bathytroctes pappenheimi

Normichthys herringi

Bajacalifornia arcylepis

Pacific barreleye - Macropinna microstoma is the only species of fish in the genus Macropinna, belonging to Opisthoproctidae, the barreleye family. M.

Vaillant's smooth-head

Bathytroctes inspector

Mirrorbelly - The 'mirrorbelly' or 'barreleye' is a barreleye of the genus Opisthoproctus, is found in most deep tropical and subtropical oceans and seas, from depths of 200 to 2,000 m.

Dolichopteryx minuscula

Fangtooth smooth-head

Northern smooth-tongue - The Northen smoothtongue is a type of deepwater fish that can grow to a length of 15 centimetres .

Sagamichthys gracilis

Searsioides calvala

Norman's smooth-head

Holtbyrnia intermedia

Antillean smooth-head

Palebelly searsid

Fanfin smooth-head

Bathylagus andriashevi

Robust blacksmelt

Nansenia iberica

Rouleina eucla

Toothless smooth-head

Mentodus facilis

Bigeye smooth-head

Leptoderma retropinna

Michael Sars smooth-head

Argentine - Argentina striata is a species of fish in the Argentinidae family.

Dolichopteryx trunovi

Bathytroctes breviceps

Order Perciformes

Escolar

New Zealand ruffe

Melanostigma orientale

Stout slipskin

Pseudoscopelus obtusifrons

Pseudoscopelus astronesthidens

Plectranthias pallidus

Malakichthys barbatus

Ariommid

Kali colubrina

Bathyclupea argentea

Seleniolycus pectoralis

Pseudoscopelus sagamianus

Caristius groenlandicus

Squaretail - The smalleye squaretail, Tetragonurus cuvieri, is a squaretail of the genus Tetragonurus found in all tropical and temperate oceans of the world, at depths up to 800 m.

Limp eelpout - The limp eelpout, Melanostigma gelatinosum, is an eelpout, of the genus Melanostigma, found in all oceans at depths of between 50 and 2,500 m.

Atrobucca geniae

Pale eelpout

Pseudoscopelus lavenbergi

Howella zina

Bothrocara nyx

Lycenchelys imamurai

Barracuda cardinalfish

Pseudoscopelus altipinnis

Malakichthys similis

Aethotaxis mitopteryx pawsoni

Kali macrodon

Deepsea herring

Paracaristius heemstrai

Dysalotus oligoscolus

Cutlassfish

Pachycara dolichaulus

Pseudoscopelus parini

Thinlip splitfin

African barrelfish

Midwater eelpout

Fan-tailed rag-fish - The ragfish body is scaleless and limp, both because of the cartilaginous skeleton, as well as its flabby muscles.

Stubraker sculpin

Deepwater slipskin

Pseudoscopelus bothrorrhinos

Silver splitfin

Atlantic soft pout

Brilliant pomfret

Eyebrow - The bluefin driftfish or scissortail, Psenes pellucidus, is a pelagic driftfish of the genus Psenes, found in all the world's oceans at depths down to 1,000 m.

Seleniolycus robertsi

Gaper

Pseudoscopelus scutatus

Melanostigma inexpectatum

Trewavas croaker

Lycodapus microchir

Pseudoscopelus microps

Pseudoscopelus aphos

Ericandersonia sagamia - Ericandersonia sagamia is a newly-described eelpout of the family Zoarcidae, found in Sagami Bay, Japan, at depths of between 880 and 930 m.

Longfin fathead

Lycodapus

Tasmanian ruffe

Rosenblattia robusta - Rosenblattia robusta is a species of deepwater cardinalfish, the only member of the genus Rosenblattia, found around the world in southern temperate waters.

Kali macrura

Black swallower

Bathyclupea megaceps

Paracaristius maderensis

Seleniolycus laevifasciatus

Pseudoscopelus pierbartus

Melanostigma vitiazi

Melanostigma bathium

Bigtooth eelpout

Pseudoscopelus cephalus

Sherborn's cardinalfish

Plectranthias robertsi

Malakichthys mochizuki

Blackfish - The rudderfish, Centrolophus niger , is a medusafish, the only member of the genus Centrolophus.

Kali indica

Platyberyx opalescens

Bathyclupea hoskynii

Cocoa snapper

White warehou - The white warehou, Seriolella caerulea, is a medusafish of the family Centrolophidae found in the southern Pacific and southern Atlantic oceans, at depths of between 500 and 800 m.

Pseudoscopelus stellatus

Neocyema erythrosoma - The bobtail snipe eels are two species of deep-sea fishes in the family Cyematidae, one only in each of two genera.

Saccopharynx harrisoni

Pelican eel - The pelican eel's most notable feature is its enormous mouth, much larger than its body.

Saccopharynx ramosus

Monognathus rosenblatti

Monognathus jesperseni

Saccopharynx berteli

Monognathus bertini

Saccopharynx lavenbergi

Bobtail eel - The bobtail snipe eels are two species of deep-sea fishes in the family Cyematidae, one only in each of two genera.

Monognathus ozawai

Monognathus herringi

Saccopharynx thalassa

Saccopharynx paucovertebratis

Monognathus rajui

Monognathus isaacsi

Order Scorpaeniformes

Blackmouth rockfish

Icelus mandibularis

Smalleye dwarf snailfish

Midwater scorpionfish

Squaloliparis dentatus

Sargasso dwarf snailfish

Genioliparis kafanovi

Acantholiparis caecus

Tadpole liparid

Short-headed sculpin

Paraliparis carlbondi

Edentoliparis terraenovae

Notoliparis antonbruuni

Multipore dwarf snailfish

Deepwater rockfish - S.

Stein's dwarf snailfish

Gelatinous dwarf snailfish

Careproctus marginatus

Paraliparis skeliphrus

Genioliparis ferox

Marvelous dwarf snailfish

Order Squaliformes

Lantern sharks - Reproduction is ovoviviparous.

Cylindrical lantern shark - Reproduction is presumed to be ovoviviparous.

Knifetooth dogfish - The knifetooth dogfish, Scymnodon ringens, is a harmless sleeper shark of the family Dalatiidae, found in the eastern Atlantic, from Scotland to Spain, Portugal, and Senegal, and the southwest Pacific from New Zealand, between latitudes 58°N and 15°N, at depths of between 200 and 1,600 m.

Rasptooth dogfish - The rasptooth dogfish, Miroscyllium sheikoi, is a dogfish, the only species in the genus Miroscyllium, found on the Kyushu-Palau Ridge in the northwest Pacific Ocean at depths of 360 m.

Etmopterus dislineatus - Reproduction is ovoviviparous.

Whitetail dogfish - The whitetail dogfish is a rare species known only from a few specimens taken by tuna longliners and trawlers.

Isistius labialis - Reproduction is aplacental viviparity in the same way as great white sharks.

Japanese velvet dogfish - The Japanese velvet dogfish, Zameus ichiharai, is a harmless deepwater sleeper shark of the family Dalatiidae, found in the northwest Pacific from Suruga Bay and adjacent waters of Japan at depths of between 500 and 800 m.

Dwarf lantern shark - American ichthyologists Stewart Springer and George H.

Spined pygmy shark - The spined pygmy shark, Squaliolus laticaudus, is a species of dogfish shark in the family Dalatiidae found widely in all oceans.

Etmopterus caudistigmus - Reproduction is ovoviviparous.

Pocket shark - The pocket shark is a very poorly known deepwater shark recorded from the Nazca Submarine Ridge off northern Chile.

Lantern sharks - Japanese ichthyologists Shigeru Shirai and Hiroyuki Tachikawa described the blurred lanternshark in a 1993 article in the scientific journal Copeia, as part of a taxonomic revision of the Etmopterus pusillus species group.

Azores dogfish - The Azores dogfish, Scymnodalatias garricki, is a very rare sleeper shark of the family Dalatiidae.

Granular dogfish - The granular dogfish has no anal fin, two dorsal spines with the second one much larger than the first, a large second dorsal fin, a long abdomen, small pectoral and pelvic fins, a large eye, prominent nostrils and spiracles, and brownish-black coloration.

Largetooth cookie-cutter shark - The largetooth cookiecutter shark was originally described by New Zealand ichthyologist Jack Garrick and American shark expert Stewart Springer, in a 1964 issue of the scientific journal Copeia.

Etmopterus pseudosqualiolus - The false lanternshark, Etmopterus pseudosqualiolus, is a shark of the family Dalatiidae found in the western Pacific from the Norfolk Ridge and Lord Howe Ridge off New Caledonia.

Etmopterus dianthus - Reproduction is ovoviviparous.

Pygmy shark - Pygmy sharks are ovoviviparous and produce about 8 young in each litter.

Cigar shark - The cookiecutter shark , also called the cigar shark, is a species of small dogfish shark in the family Dalatiidae.

Order Stephanoberyciformes

Ridgehead

Poromitra unicornis

Melamphaes macrocephalus

Scopelogadus unispinis

Bigscale

Melamphaes spinifer

Large-headed midnight fish

Abyssoberyx levisquamosus

Yawning - The yawning, Poromitra oscitans, is a fish of the family Melamphaidae, found in tropical and subtropical waters of the indo-Pacific region.

Malacosarcus macrostoma

Scopeloberyx microlepis

Order Stomiiformes

Hatchetfish - Phosichthys argenteus, a lightfish and the only member of the genus Phosichthys, is found in deep subtropical waters of all oceans, from depths of 500 to 2,000 m.

Eustomias trewavasae - Eustomias trewavasae is a small abyssal barbeled dragonfish of the family Stomiidae, found worldwide in tropical and subtropical oceans at depths down to 1,500 m.

Maurolicus breviculus

Astronesthes formosana

Eustomias schiffi

Benttooth bristlemouth

Smallhead snaggletooth - The anal fin is narrow but long, reaching almost to the caudal fin.

Eustomias albibulbus

Photonectes parvimanus

Valenciennellus carlsbergi

Eustomias ioani

Bathophilus altipinnis

Astronesthes bilobatus

Cyclothone pygmaea

Borostomias mononema

Astronesthes splendida

Pacific astronesthid fish

Eustomias gibbsi

Eustomias posti

Margrethia valentinae

Leptostomias multifilis

Maurolicus rudjakovi

Slender snaggletooth

Eustomias cancriensis

Melanostomias nigroaxialis

Eustomias minimus

Chauliodus minimus

Bigeye lightfish

Eustomias melanostigmoides

Bathophilus kingi

Maurolicus javanicus

Photonectes albipennis

Slender bristlemouth

Borostomias elucens

Thysanactis dentex

Eustomias bituberoides

Gonostoma longipinnis

Scaleless black dragonfish

Black dragonfish - Idiacanthus atlanticus is a barbeled dragonfish of the family Stomiidae, found circumglobally in southern subtropical and temperate oceans between latitudes 25°S and 60°S, at depths down to 2,000 m.

Astronesthes karsteni

Lovely hatchetfish

Astronesthes gudrunae

Eustomias bertelseni

Lightfish

Loosejaw

Vinciguerria mabahiss - Vinciguerria mabahiss is a species of Vinciguerria.

Eustomias longiramis

Eustomias tetranema

Garrick

Astronesthes dupliglandis

Scaly dragonfish

Astronesthes trifibulatus

Photonectes leucospilus

Eustomias inconstans

Polyipnus soelae

Eustomias radicifilis

Diplophos rebainsi - Diplophos rebainsi is a bristlemouth of the family Gonostomatidae, found in the south-east and west Pacific, and the South Atlantic oceans.

Stareye lightfish - The stareye lightfish is a species in the monotypic genus of Pollichthys.

Aristostomias polydactylus

Astronesthes martensii

Eustomias crossotus

Valdivia black dragon fish

Eustomias multifilis

Chauliodus vasnetzovi - Viperfish

Highlight hatchetfish

Melanostomias melanopogon

Pearlside

Half-naked hatchetfish

Astronesthes lampara

Eustomias bulbiramis

Argyripnus iridescens

Pearlsides - Mueller's Pearlside or Mueller's Bristle-mouth Fish, Maurolicus muelleri, a marine hatchetfish of the genus Maurolicus, is found in deep tropical and subtropical waters of all oceans, from the surface to depths of 1,500 m.

Eustomias uniramis

Emperor seamount lightfish

Yellow bristlemouth

Thorophos euryops

Eustomias bimargaritatus

Atlantic fangjaw

Eustomias magnificus

Heterophotus ophistoma

Bathophilus indicus

Araiophos eastropas

Astronesthes galapagensis

Constellationfish

Eustomias jimcraddocki - Eustomias jimcraddocki is a species of abyssal barbeled dragonfish of the family Stomiidae, found in the western North Atlantic.

Longfin dragonfish

Eustomias schmidti

Bristlemouth

Eustomias australensis

Slim lightfish

Photostomias atrox

Astronesthes chrysophekadion

Arrow dragonfish

Borostomias pacificus

Astronesthes tanibe

Photonectes caerulescens

Odontostomias masticopogon

Eustomias hulleyi

Polyipnus inermis

Eustomias problematicus

Diplophos australis

Stomias gracilis

Leptostomias robustus

Aristostomias grimaldii

Eustomias monoclonoides

Chauliodus pammelas

Maurolicus stehmanni

Eustomias cirritus

Melanostomias pollicifer

Melanostomias globulifer

Eustomias mesostenus

Astronesthes haplophos

Opostomias micripnus

Maurolicus kornilovorum

Eustomias bibulboides

Ichthyococcus parini

Oceanic lightfish - The oceanic lightfish, Vinciguerria nimbaria, a lightfish of the genus Vinciguerria, is found in all deep tropical and subtropical oceans and seas, from depths of 20 to 5,000 m.

Eustomias aequatorialis

Astronesthes

Photonectes margarita

Eustomias interruptus

Shortbarbel dragonfish

Astronesthes atlanticus

Loosejaw

Sternoptyx pseudodiaphana

Eustomias cryptobulbus

Eustomias pacificus

Leptostomias longibarba

Sladen's hatchet fish

Astronesthes leucopogon

Eustomias bulbornatus

Tentacle dragonfish

Argyripnus pharos

Eustomias micropterygius

Pacific viperfish - Pacific viperfish can be characterized by its large mouth, long fang-like teeth and long dorsal fin ray .

Astronesthes indopacificus

Pachystomias microdon

Eustomias bimargaritoides

Maurolicus parvipinnis

Hatchetfish

Eustomias medusa

Bathophilus irregularis

Eustomias vitiazi

Maurolicus inventionis

Photonectes achirus

Cyclothone parapallida

Bonapartia pedaliota

Thorophos nexilis

Elongated bristlemouth fish

Pacific blackdragon