This is a list of species of fish found in the waters of Ireland. A separate list of freshwater fish is given at the bottom. The list includes fish from the Rockall Trough, which extends as deep as 3500 metres. None of those deep-water fish have been caught from shore or boat. ("Ireland claims an extended continental shelf ... up to more than 500 nautical miles (926 km), particularly in the Hatton–Rockall area".)
Class Myxini (hagfish)
Order Myxiniformes
Family Myxinidae
Atlantic hagfish, Myxine glutinosa LC White-headed hagfish, Myxine ios LC
Hyperoartia
Order Petromyzontiformes (lampreys)
Family Petromyzontidae European river lamprey, Lampetra fluviatilis LC European brook lamprey, Lampetra planeri LC Sea lamprey, Petromyzon marinus NT
Infraphylum Gnathostomata (jawed vertebrates)
Class Chondrichthyes (cartilaginous fish)
Subclass Elasmobranchii
Superorder Selachimorpha (sharks and dogfish)
Order Squatiniformes (angelsharks) Family Squatinidae (angelsharks)
Angel shark, Squatina squatina CR
Order Squaliformes (dogfishes and relatives) Family Centrophoridae (gulper sharks)
Little gulper shark, Centrophorus uyato Leafscale gulper shark, Centrophorus squamosus EN Gulper shark, Centrophorus granulosus Birdbeak dogfish, Deania calcea NT Rough longnose dogfish, Deania hystricosa Family Dalatiidae
Kitefin shark, Dalatias licha VU Family Echinorhinidae (bramble and prickly sharks)
Bramble shark, Echininorhinus brucus NE Family Etmopteridae (lantern sharks)
Black dogfish, Centroscyllium fabricii LC Great lanternshark, Etmopterus princeps NT Velvet belly lantern shark, Etmopterus spinax LC Family Oxynotidae (rough sharks)
Sailfin roughshark, Oxynotus paradoxus NT Family Somniosidae (sleeper sharks)
Portuguese dogfish, Centroscymnus coelolepis CR Longnose velvet dogfish, Centroselachus crepidater VU Smallmouth velvet dogfish, Scymnodon obscurus DD Knifetooth dogfish, Scymnodon ringens NT Greenland shark, Somniosus microcephalus NT Little sleeper shark , Somniosus rostratus Velvet dogfish, Zameus squamulosus Family Squalidae (spiny dogfishes)
Spiny dogfish, Squalus acanthias EN
Order Hexanchiformes (frilled and cow sharks) Family Chlamydoselachidae (frilled sharks)
Frilled Shark, Chlamydoselachus anguineus NE Family Hexanchidae (sixgill sharks)
Bluntnose sixgill shark, Hexanchus griseus NT Sharpnose sevengill shark, Heptranchias perlo
Order Carcharhiniformes (ground sharks) Family Pseudotriakidae
False catshark, Pseudotriakis microdon Family Carcharhinidae (requiem sharks)
Blue shark, Prionace glauca NT Family Scyliorhinidae (catsharks)
Iceland catshark, Apristurus laurussonii LC White ghost catshark, Apristurus aphyodes Ghost catshark, Apristurus manis NT Black roughscale catshark, Apristurus melanoasper NT Smalleye catshark, Apristurus microps Blackmouth catshark, Galeus melastomus LC mouse catshark, Galeus murinus Lesser spotted dogfish, Scyliorhinus canicula LC Nursehound, Scyliorhinus stellaris LC Family Sphyrnidae (hammerhead sharks)
Smooth hammerhead, Sphyrna zygaena DD Family Triakidae (houndsharks)
Tope, Galeorhinus galeus VU Starry smooth-hound, Mustelus asterias LC
Order Lamniformes (mackerel sharks) Shortfin mako shark, Isurus oxyrinchus Porbeagle shark, Lamna nasus Family Alopiidae (thresher sharks)
Common thresher, Alopias vulpinus NE Bigeye thresher, Alopias superciliosus Family Cetorhinidae (basking sharks)
Basking shark, Cetorhinus maximus EN
Family Lamnidae (mackerel sharks)
Shortfin mako shark, Isurus oxyrinchus NE Porbeagle, Lamna nasus CR
Superorder Batoidea (rays, skates and sawfishes)
Order Torpediniformes (electric rays) Atlantic torpedo, Tetronarce nobiliana NT Spotted torpedo, Torpedo marmorata LC
Order Myliobatiformes (rays) Family Dasyatidae (whiptail stingrays)
Common stingray, Dasyatis pastinaca EN Pelagic stingray, Pteroplatytrygon violacea NE Family Myliobatidae (eagle rays)
Common eagle ray, Myliobatis aquila NE Family Mobulidae (devil rays)
Devil fish, Mobula mobular NE
Order Rajiformes (skates)
Family Rajidae (skates)
Thorny skate, Amblyraja radiata NE Blue skate, Dipturus batis CR Norwegian skate, Dipturus nidarosiensis NT Long-nosed skate, Dipturus oxyrinchus VU Flapper skate, Dipturus intermedius Sandy ray, Leucoraja circularis NT Blue ray, Neoraja caerulea NT Blonde ray, Raja brachyura NT Thornback ray, Raja clavata LC Shagreen ray, Raja fullonica VU Small-eyed ray, Raja microocellata LC Spotted ray, Raja montagui LC 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 Richardson's ray, Bathyraja richardsoni
Subclass Holocephali
Order Chimaeriformes (chimaeras) Family Rhinochimaeridae (longnose chimaeras)
Narrownose chimaera, Harriotta raleighana Broadnose chimaera, Rhinochimaera atlantica Family Chimaeridae (shortnose chimaeras)
Rabbit fish, Chimaera monstrosa Opal chimaera, Chimaera opalescens Smalleyed rabbitfish, Hydrolagus affinis Large-eyed rabbitfish, Hydrolagus mirabilis Pale chimaera, Hydrolagus pallidus
Superclass Osteichthyes (boned fish) - class Actinopterygii (ray-finned fish)
Subclass Chondrostei
Order Acipenseriformes (sturgeons) Family Acipenseridae (sturgeons)
European sea sturgeon, Acipenser sturio
Subclass Neopterygii
Infraclass Holostei
Superorder Clupeomorpha
Order Clupeiformes (herring and anchovies) Family Clupeidae (herring and sardines)
Allis shad, Alosa alosa Twaite shad, Alosa fallax Atlantic herring, Clupea harengus Pilchard, Sardina pilchardus European sprat, Sprattus sprattus sprattus Family Engraulidae (anchovies)
European anchovy, Engraulis encrasicolus
Superorder Elopomorpha
Order Anguilliformes (true eels)
Family Anguillidae (freshwater eels)
European eel, Anguilla anguilla Family Congridae (conger eels)
European conger, Conger conger Family Muraenidae (moray eels)
Mediterranean moray, Muraena helena Family Nettastomatidae (duckbill eels)
Whipsnout sorcerer, Venefica proboscidea Family Synaphobranchidae (cutthroat eels)
Deepwater arrowtooth eel, Histiobranchus bathybius Ilyophis arx Ilyophis blachei Muddy arrowtooth eel, Ilyophis brunneus Kaup's arrowtooth eel, Synaphobranchus kaupii Family Derichthyidae (oceanic eels)
Narrownecked oceanic eel, Derichthys serpentinus Duckbill oceanic eel, Nessorhamphus ingolfianus Family Nemichthyidae (slender snipe eels)
Slender snipe eel, Nemichthys scolopaceus Avocet snipe eel, Avocettina infans Shortgut fintail snipe eel, Labichthys carinatus Family Serrivomeridae (saw-tooth eels)
Bean's sawtooth eel, Serrivomer beanii
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