List of fish of Ireland

This article gives a list of all species of fish found in the waters of Ireland. A separate list of freshwater fish is given at the bottom.

Family Myxinidae

 * Atlantic hagfish, Myxine glutinosa
 * White-headed hagfish, Myxine ios

Family Petromyzontidae

 * European river lamprey, Lampetra fluviatilis
 * European brook lamprey, Lampetra planeri
 * Sea lamprey, Petromyzon marinus

Order Squatiniformes (angelsharks)
Family Squatinidae (angelsharks)
 * Angel shark, Squatina squatina

Order Squaliformes (dogfishes and relatives)
Family Centrophoridae (gulper sharks) Family Dalatiidae Family Echinorhinidae (bramble and prickly sharks Family Etmopteridae (lantern sharks) Family Oxynotidae (rough sharks) Family Somniosidae (sleeper sharks) Family Squalidae (spiny dogfishes)
 * Leafscale gulper shark, Centrophorus squamosus
 * Birdbeak dogfish, Deania calcea
 * Kitefin shark, Dalatias licha
 * Bramble shark, Echininorhinus brucus
 * Black dogfish, Centroscyllium fabricii
 * Velvet belly lantern shark, Etmopterus spinax
 * Great lanternshark, Etmopterus princeps
 * Sailfin roughshark, Oxynotus paradoxus
 * Portuguese dogfish, Centroscymnus coelolepis
 * Longnose velvet dogfish, Centroselachus crepidater
 * Smallmouth velvet dogfish, Scymnodon obscurus
 * Knifetooth dogfish, Scymnodon ringens
 * Greenland shark, Somniosus microcephalus
 * Spiny dogfish, Squalus acanthias



Order Hexanchiformes (frilled and cow sharks)
Family Chlamydoselachidae (frilled sharks)
 * Frilled Shark, Chlamydoselachus anguineus

Family Hexanchidae (sixgill sharks)
 * Bluntnose sixgill shark, Hexanchus griseus



Order Carcharhiniformes (ground sharks)
Family Carcharhinidae (requiem sharks) Family Scyliorhinidae (catsharks) Family Sphyrnidae (hammerhead sharks) Family Triakidae (houndsharks)
 * Blue shark, Prionace glauca
 * Iceland catshark, Apristurus laurussonii
 * Ghost catshark, Apristurus manis
 * Black roughscale catshark, Apristurus melanoasper
 * Blackmouth catshark, Galeus melastomus
 * Lesser spotted dogfish, Scyliorhinus canicula
 * Nursehound, Scyliorhinus stellaris
 * Smooth hammerhead, Sphyrna zygaena
 * Tope, Galeorhinus galeus
 * Starry smooth-hound, Mustelus asterias

Order Lamniformes (mackerel sharks)
Family Alopiidae (thresher sharks) Family Cetorhinidae (basking sharks) Family Lamnidae (mackerel sharks)
 * Common thresher, Alopias vulpinus
 * Basking shark, Cetorhinus maximus
 * Porbeagle, Lamna nasus
 * Shortfin mako shark, Isurus oxyrinchus

Order Torpediniformes (electric rays)

 * Atlantic torpedo, Tetronarce nobiliana
 * Spotted torpedo, Torpedo marmorata

Order Myliobatiformes (rays)
Family Dasyatidae (whiptail stingrays) Family Myliobatidae (eagle rays) Family Mobulidae (devil rays)
 * Common stingray, Dasyatis pastinaca
 * Pelagic stingray, Pteroplatytrygon violacea
 * Common eagle ray, Myliobatis aquila
 * Devil fish, Mobula mobular

Order Rajiformes (skates)


Family Rajidae (skates)
 * Thorny skate, Amblyraja radiata
 * Blue skate, Dipturus batis
 * Norwegian skate, Dipturus nidarosiensis
 * Long-nosed skate, Dipturus oxyrinchus
 * Sandy ray, Leucoraja circularis
 * Blue ray, Neoraja caerulea
 * Blonde ray, Raja brachyura
 * Thornback ray, Raja clavata
 * Shagreen ray, Raja fullonica
 * Small-eyed ray, Raja microocellata
 * Spotted ray, Raja montagui
 * Cuckoo ray, Raja naevus
 * Undulate ray, Raja undulata
 * Deepwater ray, Rajella bathyphila
 * Bigelow's ray, Rajella bigelowi
 * Round ray, Rajella fyllae
 * Bottlenosed skate, Rostroraja alba

Order Chimaeriformes (chimaeras)
Family Rhinochimaeridae (longnose chimaeras) Family Chimaeridae (shortnose chimaeras)
 * Narrownose chimaera, Harriotta raleighana
 * Broadnose chimaera, Rhinochimaera atlantica
 * Rabbit fish, Chimaera monstrosa
 * Opal chimaera, Chimaera opalescens
 * Smalleyed rabbitfish, Hydrolagus affinis
 * Large-eyed rabbitfish, Hydrolagus mirabilis

Order Acipenseriformes (sturgeons)
Family Acipenseridae (sturgeons)
 * European sea sturgeon, Acipenser sturio

Order Clupeiformes (herring and anchovies)
Family Clupeidae (herring and sardines) Family Engraulidae (Anchovies)
 * Allis shad, Alosa alosa
 * Twaite shad, Alosa fallax
 * Atlantic herring, Clupea harengus
 * Pilchard, Sardina pilchardus
 * European sprat, Sprattus sprattus sprattus
 * European anchovy, Engraulis encrasicolus

Order Anguilliformes (true eels)
Family Anguillidae (freshwater eels) Family Congridae (conger eels) Family Muraenidae (moray eels) Family Nettastomatidae (duckbill eels) Family Synaphobranchidae (cutthroat eels)
 * European eel, Anguilla anguilla
 * European conger, Conger conger
 * Mediterranean moray, Muraena helena
 * Whipsnout sorcerer, Venefica proboscidea
 * Deepwater arrowtooth eel, Histiobranchus bathybius
 * Ilyophis arx
 * Ilyophis blachei
 * Muddy arrowtooth eel, Ilyophis brunneus
 * Kaup's arrowtooth eel, Synaphobranchus kaupii

Order Notacanthiformes (halosaurs, spiny eels)
Family Halosauridae (halosaurs) Family Notacanthidae (spiny eels)
 * Abyssal halosaur, Halosauropsis macrochir
 * Sahara halosaur, Halosaurus johnsonianus
 * Shortfin spiny eel, Notacanthus bonaparte
 * Snub-nosed spiny eel, Notacanthus chemnitzii
 * Longnose tapirfish, Polyacanthonotus challengeri
 * Smallmouth spiny eel, Polyacanthonotus rissoanus

Order Saccopharyngiformes (gulper eels)
Family Eurypharyngidae (pelican eels) Family Saccopharyngidae (gulper eels)
 * Pelican eel, Eurypharynx pelecanoides
 * Gulper eel, Saccopharynx ampullaceus

Order Cypriniformes
Family Cyprinidae (carp and relatives) Family Nemacheilidae (stone loaches)
 * Common bream, Abramis brama
 * Gudgeon, Gobio gobio
 * Common dace, Leuciscus leuciscus
 * Common minnow, Phoxinus phoxinus
 * Common roach, Rutilus rutilus
 * Common rudd, Scardinius erythrophthalmus
 * European chub, Squalius cephalus
 * Tench, Tinca tinca
 * Stone loach,  Barbatula barbatula

Order Alepocephaliformes
Family Platytroctidae (tubeshoulders) Family Alepocephalidae (slickheads)
 * Bighead searsid, Holtbyrnia anomala
 * Maul's searsid, Maulisia mauli
 * Multipore searsid, Normichthys operosus
 * Schnakenbeck's searsid, Sagamichthys schnakenbecki
 * Koefoed's searsid, Searsia koefoedi
 * Longfin smooth-head, Conocara macropterum
 * Elongate smooth-head, Conocara microlepis
 * Murray's smooth-head, Conocara murrayi
 * Salmon smooth-head, Conocara salmoneum
 * Agassiz' smooth-head, Leptochilichthys agassizii
 * Blackhead salmon, Narcetes stomias
 * Abyssal smooth-head, Rinoctes nasutus
 * Softskin smooth-head, Rouleina attrita
 * Bluntsnout smooth-head, Xenodermichthys copei

Order Argentiniformes
Family Microstomatidae (pencil smelts) Family Opisthoproctidae (barreleyes)
 * Slender argentine, Microstoma microstoma
 * Greenland argentine, Nansenia groenlandica
 * Nansenia oblita
 * Barrel-eye, Opisthoproctus soleatus

Order Osmeriformes (smelts, etc.)

 * European smelt, Osmerus eperlanus

Order Salmoniformes (salmon, trout, whitefish)
Family Salmonidae (salmon, trout, whitefish)
 * Irish pollan, Coregonus autumnalis
 * Common whitefish, Coregonus lavaretus
 * Atlantic salmon, Salmo salar
 * Brown trout, Salmo trutta
 * Sea trout, Salmo trutta trutta
 * Arctic char, Salvelinus alpinus alpinus
 * Cole's char, Salvelinus colii
 * Coomsaharn char, Salvelinus fimbriatus
 * Gray's char, Salvelinus grayi
 * Blunt-snouted Irish char, Salvelinus obtusus

Order Stomiiformes


Family Gonostomatidae (bristlemouths) Family Sternoptychidae (hatchefishes and relatives) Family Phosichthyidae (lightfishes) Family Stomiidae (dragonfishes)
 * Longray fangjaw, Bonapartia pedaliota
 * Bristlemouth, Cyclothone alba
 * Spark anglemouth, Sigmops bathyphilus
 * Mueller's pearlside, Maurolicus muelleri
 * Diaphanous hatchetfish, Sternoptyx diaphana
 * Constellationfish, Valenciennellus tripunctulatus
 * Rendezvous fish, Polymetme corythaeola
 * Polymetme thaeocoryla
 * Large-eye snaggletooth, Borostomias antarcticus
 * Grammatostomias flagellibarba
 * Leptostomias gladiator
 * Boa dragonfish, Stomias boa ferox
 * Threelight dragonfish, Trigonolampa miriceps

Order Aulopiformes (grinners, lizardfishes)
Family Notosudidae (waryfishes) Family Paralepididae (barracudinas)
 * Blackfin waryfish, Scopelosaurus lepidus
 * Duckbill barracudina, Magnisudis atlantica
 * Sharpchin barracudina, Paralepis coregonoides
 * Sudis hyalina

Order Myctophiformes (lanternfishes)
Family Myctophidae (lanternfishes)
 * Glacier lanternfish, Benthosema glaciale
 * Spothead lantern fish, Diaphus metopoclampus
 * White-spotted lantern fish, Diaphus rafinesquii
 * Chubby flashlightfish, Electrona risso
 * Spotted lanternfish, Myctophum punctatum
 * Topside lampfish, Notolychnus valdiviae
 * Diamondcheek lanternfish, Lampanyctus intricarius
 * Rakery beaconlamp, Lampanyctus macdonaldi
 * Cocco's lantern fish, Lobianchia gemellarii
 * Arctic telescope, Protomyctophum arcticum
 * Large scale lantern fish, Symbolophorus veranyi

Order Lampriformes
Family Lampridae (opahs) Family Trachipteridae (ribbonfishes)
 * Opah, Lampris guttatus
 * Dealfish, Trachipterus arcticus

Order Zeiformes (dories, etc.)
Family Zeidae (dories) Family Oreosomatidae (oreos)
 * John Dory, Zeus faber
 * False boarfish, Neocyttus helgae

Order Gadiformes (cod and relatives)


Family Gadidae (cod and relatives) Family Lotidae (lings) Family Macrouridae (grenadiers or rattails) Family Merlucciidae (hakes) Family Moridae (codlings) Family Phycidae (forkbeard hakes) Family Trachyrincidae
 * Silvery cod, Gadiculus argenteus argenteus
 * Silvery pout, Gadiculus argenteus thori
 * Atlantic cod, Gadus morhua
 * Haddock, Melanogrammus aeglefinus
 * Whiting, Marlangius merlangus
 * Blue whiting, Micromesistius poutassou
 * Pollock, Pollachius pollachus
 * Saithe, Pollachius virens
 * Tadpole fish, Raniceps raninus
 * Norway pout, Trisopterus esmarkii
 * Pouting, Trisopterus luscus
 * Poor cod, Trisopterus minutus
 * Cusk, Brosme brosme
 * Fivebeard rockling, Ciliata mustela
 * Northern rockling, Ciliata septentrionalis
 * Fourbeard rockling, Enchelyopus cimbrius
 * Arctic rockling, Gaidropsarus argentatus
 * Bigeye rockling, Gaidropsarus macrophthalmus
 * Shore rockling, Gaidropsarus mediterraneus
 * Three-bearded rockling, Gaidropsarus vulgaris
 * Burbot, Lota lota
 * Blue ling, Molva dypterygia
 * Spanish ling, Molva macrophthalma
 * Common ling, Molva molva
 * Hollowsnout grenadier, Coelorinchus caelorhincus
 * Spearsnouted grenadier, Coelorinchus labiatus
 * Abyssal grenadier, Coryphaenoides armatus
 * Coryphaenoides brevibarbis
 * Carapine grenadier, Coryphaenoides carapinus
 * Günther's grenadier, Coryphaenoides guentheri
 * Ghostly grenadier, Coryphaenoides leptolepis
 * Mediterranean grenadier, Coryphaenoides mediterraneus
 * Deepwater grenadier, Coryphaenoides profundicolus
 * Roundnose grenadier, Coryphaenoides rupestris
 * Glasshead grenadier, Hymenocephalus italicus
 * Onion-eye grenadier, Macrourus berglax
 * Softhead grenadier, Malacocephalus laevis
 * Common Atlantic grenadier, Nezumia aequalis
 * Paracetonurus flagellicauda
 * Lyconus brachycolus
 * European hake, Merluccius merluccius
 * Common mora, Mora moro
 * Guttigadus latifrons
 * Slender codling, Halargyreus johnsonii
 * North Atlantic codling, Lepidion eques
 * Greater forkbeard, Phycis blennoides
 * Roughnose grenadier, Trachyrincus murrayi
 * Roughsnout grenadier, Trachyrincus scabrus

Order Beryciformes (alfonsinos, bigscales, ridgeheads)
Family Berycidae (alfonsinos) Family Melamphaidae (bigscales)
 * Alfonsino, Beryx decadactylus
 * Crested bigscale, Poromitra crassiceps
 * Bean's bigscale, Scopelogadus beanii

Oder Trachichthyiformes (spinyfins, roughies and relatives)
Family Diretmidae (spinyfins) Family Trachichthyidae (roughies and slimeheads)
 * Silver spinyfin, Diretmus argenteus
 * Orange roughy, Hoplostethus atlanticus
 * Silver roughy, Hoplostethus mediterraneus mediterraneus

Order Ophidiiformes (cusk-eels, brotulas and relatives)
Family Aphyonidae Family Bythitidae (viviparous brotulas) Family Carapidae (pearlfishes) Family Ophidiidae (cusk-eels)
 * Sciadonus galatheae
 * Cataetyx alleni
 * Cataetyx laticeps
 * Thalassobathia pelagica
 * Pearlfish, Echiodon drummondii
 * Pudgy cuskeel, Spectrunculus grandis

Order Gobiiformes (gobies and relatives)
Family Gobiidae (gobies)
 * Transparent goby, Aphia minuta
 * Jeffrey's goby, Buenia jeffreysii
 * Crystal goby, Crystallogobius linearis
 * Couch's goby, Gobius couchi
 * Red-mouthed goby, Gobius cruentatus
 * Black goby, Gobius niger
 * Rock goby, Gobius paganellus
 * Two-spotted goby, Gobiusculus flavescens
 * Lesueurigobius friesii
 * Lozano's goby, Pomatoschistus lozanoi
 * Common goby, Pomatoschistus microps
 * Sand gobyPomatoschistus minutus
 * Painted goby, Pomatoschistus pictus
 * Leopard-spotted goby, Thorogobius ephippiatus

Order Syngnathiformes (pipefishes, seahorses, dragonettes and relatives)
Family Callionymidae (dragonettes) Family Mullidae (goatfishes) Family Syngnathidae (seahorses and pipefishes)
 * Common dragonet, Callionymus lyra
 * Callionymus maculatus
 * Reticulated dragonet, Callionymus reticulatus
 * Red mullet, Mullus barbatus barbatus
 * Striped red mullet, Mullus surmuletus
 * Snake pipefish, Entelurus aequoreus
 * Long-snouted seahorse, Hippocampus guttulatus
 * Worm pipefish, Nerophis lumbriciformis
 * Straightnose pipefish, Nerophis ophidion
 * Greater pipefish, Syngathus acus
 * Nilsson's pipefish, Syngnathus rostellatus
 * Broad-nosed pipefish, Syngnathus typhle

=
Order Scombriformes (tuna, mackerel and relatives; sensu Betancur-Rodriguez et al. 2016) ======

Family Bramidae (pomfrets) Family Centrolophidae (medusafishes) Family Gempylidae (snake mackerels) Family Nomeidae (driftfishes) Family Scombridae (tuna, mackerel and bonitos) Family Trichiuridae (cutlassfishes and scabbardfishes)
 * Atlantic pomfret, Brama brama
 * Bigscale pomfret, Taractichthys longipinnis
 * Barrelfish, Hyperoglyphe perciformis
 * Cornish blackfish, Schedophilus medusophagus
 * Black gemfish, Nesiarchus nasutus
 * Oilfish, Ruvettus pretiosus
 * Bullet tuna, Auxis rochei rochei
 * Frigate tuna, Auxis thazard thazard
 * Skipjack tuna, Katsuwonus pelamis
 * Atlantic bonito, Sarda sarda
 * Atlantic mackerel, Scomber scombrus
 * Albacore, Thunnus alalunga
 * Atlantic bluefin tuna, Thunnus thynnus
 * Black scabbardfish, Aphanopus carbo
 * Silver scabbardfish, Lepidopus caudatus
 * Largehead hairtail, Trichiurus lepturus

Order Istiophoriformes (billfishes)
Family Xiphiidae (swordfish)
 * Swordfish, Xiphias gladius

Order Carangiformes (jacks and relatives)
Family Carangidae (jacks and relatives)
 * Vadigo, Campogramma glaycos
 * Derbio, Trachinotus ovatus
 * Atlantic horse mackerel, Trachurus trachurus

Order Pleuronectiformes (flatfishes)
Family Pleuronectidae (righteye flounders) Family Scophthalmidae (turbots) Family Soleidae (true soles)
 * American plaice, Hippoglossoides platessoides
 * Atlantic halibut, Hippoglossus hippoglossus
 * Torbay sole, Glyptocephalus cynoglossus
 * Dab, Limanda limanda
 * Lemon sole, Microstomus kitt
 * European flounder, Platichthys flesus
 * European plaice, Pleuronectes platessa
 * Greenland halibut, Reinhardtius hippoglossoides
 * Fourspotted megrim, Lepidorhombus boscii
 * Megrim, Lepidorhombus whiffiagonis
 * Norwegian topknot, Phrynorhombus norvegicus
 * Turbot, Scophthalmus maximus
 * Brill, Scophthalmus rhombus
 * Topknot, Zeugopterus punctatus
 * Eckström's topknot, Zeugopterus regius
 * Solenette, Buglossidium luteum
 * Thickback sole, Microchirus variegatus
 * Common sole, Solea solea

Order Beloniformes
Family Belonidae (needlefishes) Family Scomberesocidae (sauries)
 * Garfish, Belone belone
 * Short-beaked garfish, Belone svetovidovi
 * Atlantic saury, Scomberesox saurus saurus

Order Atheriniformes (silversides)
Family Atherinidae (silversides)
 * Sand smelt, Atherina presbyter

Order Mugiliformes (mullets)
Family Mugilidae (mullets)
 * Thicklip grey mullet, Chelon labrosus
 * Golden grey mullet, Chelon aurata
 * Thin-lipped grey mullet, Chelon ramada

Order Gobiesociformes (clingfishes)
Family Gobiesocidae (clingfishes)
 * Two-spotted clingfish, Diplecogaster bimaculata
 * Connemarra clingfish, Lepadogaster candolii

Order Blenniiformes (blennies and relatives)
Family Blenniidae (combtooth blennies)
 * Montagu's blenny, Coryphoblennius galerita
 * Shanny, Lipophrys pholis
 * Tompot blenny, Parablennius gattorugine

Order Uranoscopiformes (weevers, stargazers and relatives; sensu Betancur-Rodriguez et al. 2016)
Family Ammodytidae (sandlances) Family Trachinidae (weeverfishes) Family Uranoscopidae (stargazers)
 * Raitt's sand eel, Ammodytes marinus
 * Lesser sand eel, Ammodytes tobianus
 * Smooth sandeel, Gymnammodytes semisquamatus
 * Great sand eel, Hyperoplus immaculatus
 * Great sandeel, Hyperoplus lanceolatus
 * Lesser weever, Echiichthys vipera
 * Greater weever, Trachinus draco
 * Atlantic stargazer, Uranoscopus scaber

Order Labriformes (wrasses sensu Betancur-Rodriguez et al. 2016)
Family Labridae (wrasses)
 * Rock cook, Centrolabrus exoletus
 * Goldsinny wrasse, Ctenolabrus rupestris
 * Ballan wrasse, Labrus bergylta
 * Cuckoo wrasse, Labrus mixtus
 * Baillon's wrasse, Symphodus bailloni
 * Corkwing wrasse, Symphodus melops

Order Pempheriformes (sensu Betancur-Rodriguez et al. 2016 )
Family Epigonidae (deepwater cardinalfishes) Family Polyprionidae (wreckfishes)
 * Bulls-eye, Epigonus telescopus
 * Atlantic wreckfish, Polyprion americanus

Suborder Percoidei (sensu Betancur-Rodriguez et al. 2016 )
Family Percidae (perches)
 * European perch, Perca fluviatilis

Suborder Triglioidei (searobins and gurnards)
Family Triglidae (searobins and gurnards)
 * Tub gurnard, Chelidonichthys lucerna
 * Longfin gurnard, Chelidonichthys obscurus
 * Grey gurnard, Eutrigla gurnardus

Suborder Scorpaenoidei (scorpionfish, rockfishes and relatives)
Family Sebastidae (rockfishes)
 * Blackbelly rosefish, Helicolenus dactylopterus dactylopterus
 * Norway redfish, Sebastes viviparus
 * Spiny scorpionfish, Trachyscorpia cristulata echinata

Infraorder Zoarcales (eelpouts, wolffishes and relatives)


Family Anarhichadidae (wolffishes) Family Pholidae (gunnels) Family Stichaeidae (pricklebacks) Family Zoarcidae (eelpouts)
 * Atlantic wolffish, Anarhichas lupus
 * Rock gunnel, Pholis gunnellus
 * Yarrell's blenny, Chirolophis ascanii
 * White eelpout, Lycenchelys alba
 * Atlantic eelpout, Lycodes terraenovae
 * Snubnose eelpout, Pachycara bulbiceps
 * Pachycara crassiceps
 * Viviparous blenny, Zoarces viviparus

Infraorder Gasterosteales (sticklebacks, etc.)
Family Gasterosteidae (sticklebacks)
 * Three-spined stickleback, Gasterosteus aculeatus aculeatus
 * Nine-spined stickleback, Pungitius pungitius
 * Sea stickleback, Spinachia spinachia

Infraorder Cottales (sculpins, snailfishes, lumpfishes and relatives)
Family Cottidae (sculpins) Family Cyclopteridae (lumpsuckers) Family Liparidae (snailfishes) Family Psychrolutidae (fatheads and blobfishes)
 * European bullhead, Cottus gobio
 * Norway bullhead, Micrenophrys lilljeborgii
 * Shorthorn sculpin, Myoxocephalus scorpius
 * Longspined sea-scorpion, Taurulus bubalis
 * Lumpsucker, Cyclopterus lumpus
 * Careproctus aciculipunctatus
 * Merret's snailfish, Careproctus merretti
 * Common seasnail, Liparis liparis liparis
 * Montagu's sea snail, Liparis montagui
 * Paraliparis abyssorum
 * Black seasnail, Paraliparis bathybius
 * Paraliparis bipolaris
 * Paraliparis hystrix
 * Pallid sculpin, Cottunculus thomsonii

Order Moroniformes (temperate basses sensu Betancur-Rodriguez et al. 2016 )
Family Moronidae (temperate basses)
 * European seabass, Dicentrarchus labrax

Order Spariformes (seabreams and relatives sensu Betancur-Rodriguez et al. 2016 )
Family Sparidae (seabreams and progies)
 * Bogue, Boops boops
 * Common dentex, Dentex dentex
 * Blackspot seabream, Pagellus bogaraveo
 * Common pandora, Pagellus erythrinus
 * Gilt-head bream, Sparus aurata
 * Black seabream, Spondyliosoma cantharus

Order Priacanthiformes (bigeyes and bandfishes sensu Betancur-Rodriguez et al. 2016 )
Family Cepolidae (bandfishes)
 * Red bandfish, Cepola macrophthalma

Order Caproiformes (boarfishes sensu Betancur-Rodriguez et al. 2016 )
Family Caproidae (boarfishes)
 * Boarfish, Capros aper

Suborder Lophoidei (monkfishes)
Family Lophiidae (monkfishes)
 * Black-bellied angler, Lophius budegassa
 * Monkfish, Lophius piscatorius

Suborder Ceratioidei
Family Oneirodidae (dreamers)
 * Can-opener smoothdream, Chaenophryne longiceps
 * Oneirodes carlsbergi
 * Bulbous dreamer, Oneirodes eschrichtii

Order Tetraodontiformes (pufferfishes, triggerfishes, molas)
Family Molidae (molas) Family Tetraodontidae (pufferfishes)
 * Ocean sunfish, Mola mola
 * Slender sunfish, Ranzania laevis
 * Blunthead puffer, Sphoeroides pachygaster

Freshwater fish
It has been argued that only nine species of freshwater fish are truly native to Ireland — five char species, pollan, eel, brown trout and Atlantic salmon — as Ireland's fresh water was entirely frozen during the last glacial period, only diadromous fish could repopulate Irish waters after the Ice Age. All other freshwater species were introduced, mostly from the Middle Ages onwards.


 * European river lamprey, Lampetra fluviatilis
 * European brook lamprey, Lampetra planeri
 * Sea lamprey, Petromyzon marinus
 * European eel, Anguilla anguilla
 * Allis shad, Alosa alosa
 * Twaite shad, Alosa falax fallax
 * Common dace, Leuciscus leuciscus
 * Common minnow, Phoxinus phoxinus
 * Gudgeon, Gobio gobio
 * Common roach, Rutilus rutilus
 * Common rudd, Scardinius erythrophthalmus
 * European chub, Squalius cephalus
 * Common bream, Abramis brama
 * Stone loach,  Nemacheilus barbatulus
 * Tench, Tinca tinca
 * Northern pike, Esox lucius
 * European smelt, Osmerus eperlanus
 * Atlantic salmon, Salmo salar
 * Arctic char, Salvelinus alpinus alpinus
 * Cole's char, Salvelinus colii
 * Coomsaharn char, Salvelinus fimbriatus
 * Gray's char, Salvelinus grayi
 * Blunt-snouted Irish char, Salvelinus obtusus
 * Brown trout, Salmo trutta
 * Irish pollan, Coregonus autumnalis
 * Three-spined stickleback, Gasterosteus aculeatus aculeatus
 * Nine-spined stickleback, Pungitius pungitius
 * European bullhead, Cottus gobio
 * Norway bullhead, Taurulus lilljeborgi