Rhestr o greaduriaid morol gwledydd Prydain
Dyma restr o greaduriaid a ellir eu canfod ar arfordiroedd gwledydd Prydain; daw'r enwau Cymraeg o gronfa Cymdeithas Edward Llwyd o enwau. Gweler hefyd rhestr Y Bywiadur Llên Natur.
>>trefn yr wyddor ... gwaith ar y gweill ...<<
- Cymraeg - Saesneg - Lladin
- Aderyn drycin bach, Little shearwater, Puffinus assimilis
- Aderyn drycin mawr, Great shearwater, Puffinus gravis
- Aderyn drycin Manaw, Manx shearwater, Puffinus puffinus
- Aderyn drycin y graig, Northern fulmar, Fulmarus glacialis
- Alarch dof, Mute swan, Cygnus olor
- Alarch y Gogledd, Whooper swan, Cygnus cygnus
- Albatros aelddu, Black-browed albatross, Diomedea melanophris
- Bonito, Atlantic bonito, Sarda sarda
- Brithyll, Brown trout, Salmo trutta
- Brwyniad, European anchovy, Engraulis encrasicolus
- Cambig, Pied avocet, Recurvirostra avosetta
- Carfil bach, Little auk, Alle alle
- Cegddu, European hake, Merluccius merluccius
- Cerpyn, Common carp, Cyprinus carpio
- Codyn Ebrill, Poor cod, Trisopterus minutus
- Coegleiddiad, False killer whale, Pseudorca crassidens
- Coegylfinir, Whimbrel, Numenius phaeopus
- Coegylfinir bach, Little curlew, Numenius minutus
- Congren, European conger, Conger conger
- Corhwyaden, Eurasian teal, Anas crecca
- Corhwyaden asgell-las, Blue-winged teal, Anas discors
- Corhwyaden asgellwerdd, Green-winged teal, Anas crecca carolinensis
- Corbennog, European sprat, Sprattus sprattus
- Cornbig, Garfish, Belone belone
- Corswennol adeinwen, White-winged tern, Chlidonias leucopterus
- Corswennol ddu, Black tern, Chlidonias niger
- Corswennol farfog, Whiskered tern, Chlidonias hybrida
- Crëyr bach, Little egret, Egretta garzetta
- Crychyn, Ruffe, Gymnocephalus cernuus
- Cwtiad aur, European golden plover, Pluvialis apricaria
- Cwtiad Caint, Kentish plover, Charadrius alexandrinus
- Cwtiad heidiol, Sociable lapwing, Vanellus gregarius
- Cwtiad llwyd, Grey plover, Pluvialis squatarola
- Cwtiad torchog, Common ringed plover, Charadrius hiaticula
- Cwtiad torchog bach, Little ringed plover, Charadrius dubius
- Cwtiad torchog mawr, Killdeer, Charadrius vociferus
- Cwtiad tywod mawr, Greater sand plover, Charadrius leschenaultii
- Cwtiad y traeth, Ruddy turnstone, Arenaria interpres
- Cwtiad-wennol adeinddu, Black-winged pratincole, Glareola nordmanni
- Cwtiad-wennol torchog, Collared pratincole, Glareola pratincola
- Chwiwell, Eurasian wigeon, Anas penelope
- Darsen, Common dace, Leuciscus leuciscus
- Drymiwr, Stone bass, Argyrosomus regius
- Dwrgi, European otter, Lutra lutra
- Eog, Atlantic salmon, Salmo salar
- Eryr moel, Bald eagle, Haliaeetus leucocephalus
- Eryr môr, White-tailed eagle, Haliaeetus albicilla
- Fendas, Vendace, Coregonus albula
- Gïach bach, Jack snipe, Lymnocryptes minimus
- Gïach gylfinhir, Long-billed dowitcher, Limnodromus scolopaceus
- Gïach mawr, Great snipe, Gallinago media
- Gobi, Common goby, Pomatoschistus microps
- Gobi Norwy, Norway goby, Pomatoschistus norvegicus
- Gobi tryloyw, Transparent goby, Aphia minuta
- Gorwyniad, Common bleak, Alburnus alburnus
- Gwangen, Twait shad, Alosa fallax
- Gweflogyn, Viviparous eelpout, Zoarces viviparus
- Gwrachen Baillon, Baillon's wrasse, Crenilabrus bailloni
- Gwyach fach, Little grebe, Tachybaptus ruficollis
- Gwyach fawr gopog, Great crested grebe, Podiceps cristatus
- Gwyach gorniog, Horned grebe, Podiceps auritus
- Gwyach yddfddu, Black-necked grebe, Podiceps nigricollis
- Gwyach yddfgoch, Red-necked grebe, Podiceps grisegena
- Gwyach ylfinfraith, Pied-billed grebe, Podilymbus podiceps
- Gŵydd Canada, Canada goose, Branta canadensis
- Gŵydd dalcenwen, Greater white-fronted goose, Anser albifrons
- Gŵydd dalcenwen fechan, Lesser white-fronted goose, Anser erythropus
- Gŵydd droedbinc, Pink-footed goose, Anser brachyrhynchus
- Gŵydd ddu, Brant goose, Branta bernicla
- Gŵydd frongoch, Red-breasted goose, Branta ruficollis
- Gŵydd lwyd, Greylag goose, Anser anser
- Gŵydd wyran, Barnacle goose, Branta leucopsis
- Gŵydd y llafur, Bean goose, Anser fabalis
- Gwylan Bonaparte, Bonaparte's gull, Larus philadelphia
- Gwylan Franklin, Franklin's gull, Larus pipixcan
- Gwylan Ross, Ross's gull, Rhodostethia rosea
- Gwylan Sabine, Sabine's gull, Larus sabini
- Gwylog, Common guillemot, Uria aalge
- Gwylog ddu, Black guillemot, Cepphus grylle
- Gylfinir, Eurasian curlew, Numenius arquata
- Hadog, Haddock, Melanogrammus aeglefinus
- Herlyn, Allis shad, Alosa alosa
- Heulforgi, Basking shark, Cetorhinus maximus
- Honos, Common ling, Molva molva
- Howtin, Houting, Coregonus oxyrinchus
- Hugan, Northern gannet, Sula bassana
- Hwyaden addfain, Garganey, Anas querquedula
- Hwyaden benddu, Greater scaup, Aythya marila
- Hwyaden bengoch, Common pochard, Aythya ferina
- Hwyaden benwen, White-headed duck, Oxyura leucocephala
- Hwyaden dorchog, Ring-necked duck, Aythya collaris
- Hwyaden ddanheddog, Common merganser, Mergus merganser
- Hwyaden ddu, American black duck, Anas rubripes
- Hwyaden frongoch, Red-breasted merganser, Mergus serrator
- Hwyaden fwythblu, Common eider, Somateria mollissima
- Hwyaden fwythblu'r Gogledd, King eider, Somateria spectabilis
- Hwyaden goch, Ruddy duck, Oxyura jamaicensis
- Hwyaden goch yr eithin, Ruddy shelduck, Tadorna ferruginea
- Hwyaden gopog, Tufted duck, Aythya fuligula
- Hwyaden gribgoch, Red-crested pochard, Netta rufina
- Hwyaden gribog, Mandarin duck, Aix galericulata
- Hwyaden lostfain, Northern pintail, Anas acuta
- Hwyaden lwyd, Gadwall, Anas strepera
- Hwyaden lygad-aur, Common goldeneye, Bucephala clangula
- Hwyaden wyllt, Mallard, Anas platyrhynchos
- Hwyaden yr eithin, Common shelduck, Tadorna tadorna
- Hyrddyn aur, Golden grey mullet, Liza aurata
- Hyrddyn llwyd minfain, Thinlip mullet, Liza ramada
- Hyrddyn llwyd gweflog, Thicklip grey mullet, Chelon labrosus
- Ibis du, Glossy ibis, Plegadis falcinellus
- Lleden Ffrengig, Atlantic halibut, Hippoglossus hippoglossus
- Lleden Thor, Thor's scaldfish, Arnoglossus thori
- Lleden yr Ynys Las, Greenland halibut, Reinhardtius hippoglossoides
- Lleian wen, Smew, Mergus albellus
- Lleiddiad, Killer whale, Orcinus orca
- Llurs, Razorbill, Alca torda
- Llyfrothen, Rock gunnel, Pholis gunnellus
- Llyfrothen Montagu, Montagu's blenny, Coryphoblennius galerita
- Llymrïen, Lesser sand eel, Ammodytes tobianus
- Llysywen, European eel, Anguilla anguilla
- Macrell, Atlantic mackerel, Scomber scombrus
- Macrell Sbaen, Chub mackerel, Scomber japonicus
- Maelgi, Angelshark, Squatina squatina
- Marchfacrell, Atlantic horse mackerel, Trachurus trachurus
- Marlin, Skipjack tuna, Euthynnus pelamis
- Melyngoes bach, Lesser yellowlegs, Tringa flavipes
- Melyngoes mawr, Greater yellowlegs, Tringa melanoleuca
- Merfog, Common bream, Abramis brama
- Mingrwn, Striped red mullet, Mullus surmuletus
- Morflaidd, Atlantic wolffish, Anarhichas lupus
- Morflaidd brith, Spotted wolffish, Anarhichas minor
- Morgi, Small-spotted catshark, Scyliorhinus canicula
- Morgi'r Ynys Las, Greenland shark, Somniosus microcephalus
- Môr-hwyaden ddu, Common scoter, Melanitta nigra
- Môr-hwyaden y Gogledd, Velvet scoter, Melanitta fusca
- Môr-hwyaden yr ewyn, Surf scoter, Melanitta perspicillata
- Morlas, Atlantic pollack, Pollachius pollachius
- Môr-wennol fawr, Royal tern, Sterna maxima
- Môr-wennol fechan, Little tern, Sterna albifrons
- Môr-wennol Forster, Forster's tern, Sterna forsteri
- Môr-wennol fraith, Sooty tern, Sterna fuscata
- Môr-wennol ffrwynog, Bridled tern, Sterna anaethetus
- Môr-wennol gribog leiaf, Lesser crested tern, Sterna bengalensis
- Môr-wennol gawraidd, Caspian tern, Sterna caspia
- Môr-wennol gyffredin, Common tern, Sterna hirundo
- Môr-wennol wridog, Roseate tern, Sterna dougallii
- Môr-wennol y Gogledd, Arctic tern, Sterna paradisaea
- Môr-wennol ylfinbraff, Gull-billed tern, Gelochelidon nilotica
- Mulfran, Great cormorant, Phalacrocorax carbo
- Mulfran werdd, European shag, Phalacrocorax aristotelis
- Orff, Ide, Leuciscus idus
- Pâl, Atlantic puffin, Fratercula arctica
- Pandora, Common pandora, Pagellus erythrinus
- Pedryn Bulwer, Bulwer's petrel, Bulweria bulwerii
- Pedryn drycin, European storm petrel, Hydrobates pelagicus
- Pedryn drycin Leach, Leach's storm petrel, Oceanodroma leucorhoa
- Pedryn Wilson, Wilson's storm petrel, Oceanites oceanicus
- Penbwl môr, Pogge, Agonus cataphractus
- Pencath, Wels catfish, Silurus glanis
- Penfras y Gogledd, Boreogadus saida, Boreogadus saida
- Penhwyad, Northern pike, Esox lucius
- Penlletwad, European bullhead, Cottus gobio
- Pibydd Baird, Baird's sandpiper, Calidris bairdii
- Pibydd cambig, Curlew sandpiper, Calidris ferruginea
- Pibydd cain, Pectoral sandpiper, Calidris melanotos
- Pibydd coesgoch, Common redshank, Tringa totanus
- Pibydd coesgoch mannog, Spotted redshank, Tringa erythropus
- Pibydd coeswerdd, Common greenshank, Tringa nebularia
- Pibydd cynffonlwyd, Grey-tailed tattler, Tringa brevipes
- Pibydd du, Purple sandpiper, Calidris maritima
- Pibydd bach, Little stint, Calidris minuta
- Pibydd llwyd, Semipalmated sandpiper, Calidris pusilla
- Pibydd llydanbig, Broad-billed sandpiper, Limicola falcinellus
- Pibydd Temminck, Temminck's stint, Calidris temminckii
- Pibydd tinwen, white-rumped sandpiper, Calidris fusicollis
- Pibydd y dorlan, Common sandpiper, Actitis hypoleucos
- Pibydd y gors, Marsh sandpiper, Tringa stagnatilis
- Pibydd y mawn, Dunlin, Calidris alpina
- Pibydd y tywod, Sanderling, Calidris alba
- Pibydd yr aber, Red knot, Calidris canutus
- Pilcodyn, Common minnow, Phoxinus phoxinus
- Polan, Arctic cisco, Coregonus autumnalis
- Powan, Lavaret, Coregonus lavaretus
- Rhedwr moelydd, Eurasian stone-curlew, Burhinus oedicnemus
- Rhedwr twyni, Cream-coloured courser, Cursorius cursor
- Rhegen Baillon, Baillon's crake, Porzana pusilla
- Rhegen yr ŷd, Corn crake, Crex crex
- Rhufell, Common roach, Rutilus rutilus
- Salpa, Salema porgy, Sarpa salpa
- Sgipiwr, Atlantic saury, Scomberesox saurus
- Sgiwen fach, Pomarine skua, Stercorarius pomarinus
- Sgiwen fawr, Great skua, Stercorarius skua
- Sgiwen lostfain, Long-tailed skua, Stercorarius longicaudus
- Sgiwen Pegwn y De, South Polar skua, Stercorarius maccormicki
- Sgiwen y Gogledd, Arctic skua, Stercorarius parasiticus
- Sgreten, Tench, Tinca tinca
- Styrsiwn, European sea sturgeon, Acipenser sturio
- Swtan barfog bach, Tadpole fish, Raniceps raninus
- Swtan Norwy, Norway pout, Trisopterus esmarkii
- Tiwna, Atlantic bluefin tuna, Thunnus thynnus
- Torsg, Cusk, Brosme brosme
- Torbwt, Turbot, Scophthalmus maximus
- Trochydd gyddfddu, Black-throated diver, Gavia arctica
- Trochydd gyddfgoch, Red-throated diver, Gavia stellata
- Trochydd mawr, Great Northern diver, Gavia immer
- Trochydd pigwyn, White-billed diver, Gavia adamsii
- Gwrachen Gennog, Scale-rayed wrasse, Acantholabrus palloni
- Llwynog Môr, Common thresher, Alopias vulpinus
- Morflaidd Brith Danheddog, Northern wolffish, Anarhichas denticulatus
- Pysgodyn Arian Mawr, Greater argentine, Argentina silus
- Pysgodyn Arian Bach, argentine, Argentina sphyraena
- Ysgyfarnog Fôr, Red gurnard, Aspitrigla cuculus
- Pysgodyn Ystlys-Arian Cennog, Big-scale sand smelt, Atherina boyeri
- Pysgodyn Ystlys-Arian, Sand smelt, Atherina presbyter
- Macrell Roche, Bullet tuna, Auxis rochei
- Morfil Pigfain, Common minke whale, Balaenoptera acutorostrata
- Morfil Asgellog Sei, Sei whale, Balaenoptera borealis
- Morfil Asgellog Glas, Blue whale, Balaenoptera musculus
- Morfil Asgellog Llwyd, Fin whale, Balaenoptera physalus
- Pysgodyn Clicied, Grey triggerfish, Balistes carolinensis
- Llyfrothen Adeiniog, Butterfly blenny, Blennius ocellaris
- Merfog Gwyn, Silver bream, Blicca bjoerkna
- Pysgodyn Llygad-Llo, Boops boops, Boops boops
- Merfog Môr, Atlantic pomfret, Brama brama
- Lleden Felen Fach, Solenette, Buglossidium luteum
- Bwgan Dŵr, Common dragonet, Callionymus lyra
- Bwgan Brith, Spotted dragonet, Callionymus maculatus
- Crwban Môr Pendew, Loggerhead sea turtle, Caretta caretta
- Pysgodyn Du, Rudderfish, Centrolophus niger
- Crwban Môr Gwyrdd, Green sea turtle, Chelonia mydas
- Cwningen Fôr, Rabbit fish, Chimaera monstrosa
- Brithyll Mair Pum-Barf, Fivebeard rockling, Ciliata mustela
- Hwyaden Gynffon-Hir, Long-tailed duck, Clangula hyemalis
- Pennog (Neu Ysgadenyn), Atlantic herring, Clupea harengus
- Gwrachen Seithliw, Mediterranean rainbow wrasse, Coris julis
- Cynffon Llygoden, Coryphaenoides rupestris, Coryphaenoides rupestris
- Gwrachen Eurben, Corkwing wrasse, Crenilabrus melops
- Gobi Gwydraidd, Crystal goby, Crystallogobius linearis
- Gwrachen Fair, Goldsinny wrasse, Ctenolabrus rupestris
- Iâr Fôr, Cyclopterus lumpus, Cyclopterus lumpus
- Morlo Cycyllog, Hooded seal, Cystophora cristata
- Morgath Ddu, Common stingray, Dasyatis pastinaca
- Morfil Gwyn, Beluga whale, Delphinapterus leucas
- Dolffin Cyffredin, Short-beaked common dolphin, Delphinus delphis
- Merfog Ysgithrog, Common dentex, Dentex dentex
- Crwban Môr Cefn-Lledr, Leatherback sea turtle, Dermochelys coriacea
- Draenogyn Mor, European seabass, Dicentrarchus labrax
- Môr-Wiber Fach, Lesser weever, Echiichthys vipera
- Brithyll Mair Pedair-Barf, Fourbeard rockling, Enchelyopus cimbrius
- Crwban Môr Gwalchbig, Hawksbill sea turtle, Eretmochelys imbricata
- Morlo Barfog, Bearded seal, Erignathus barbatus
- Morgi Seithliw, Velvet belly lanternshark, Etmopterus spinax
- Tiwna Bach, Little tunny, Euthynnus alletteratus
- Chwyrnwr Llwyd, Grey gurnard, Eutrigla gurnardus
- Swtan Arian, Silvery pout, Gadiculus argenteus
- Penfras (Neu Codyn), Atlantic cod, Gadus morhua
- Penfras Yr Ynys Las, Greenland cod, Gadus ogac
- Brithyll Mair Tair-Barf, Three-bearded rockling, Gaidropsarus vulgaris
- Ci Glas, School shark, Galeorhinus galeus
- Morgi Cegddu, Blackmouth catshark, Galeus melastomus
- Crothell Dri Phigyn, Three-spined stickleback, Gasterosteus aculeatus
- Morfil Pengrwn, Long-finned pilot whale, Globicephala melas
- Lleden Wrach, Witch (righteye flounder), Glyptocephalus cynoglossus
- Llyfrothen Dŵr Croyw, Gobio gobio, Gobio gobio
- Gobi Mawr, Giant goby, Gobius cobitis
- Gobi Couch, Couch's goby, Gobius couchi
- Gobi Mingoch, Red-mouthed goby, Gobius cruentatus
- Gobi Du, Black goby, Gobius niger
- Bill Bigog, Rock goby, Gobius paganellus
- Dolffin Risso, Risso's dolphin, Grampus griseus
- Pioden Fôr, Eurasian Oystercatcher, Haematopus ostralegus
- Morlo Llwyd, Grey seal, Halichoerus grypus
- Hirgoes, Black-winged stilt, Himantopus himantopus
- Morfil Trwyn Potel, Northern bottlenose whale, Hyperoodon ampullatus
- Sgorpion Môr Deugorn, Twohorn sculpin, Icelus bicornis
- Pysgodyn Hwyliog, Indo-Pacific sailfish, Istiophorus platypterus
- Morfil Sberm Lleiaf, Pygmy sperm whale, Kogia breviceps
- Cleiriach Y Gwymon, Ballan wrasse, Labrus bergylta
- Gwrachen Resog, Cuckoo wrasse, Labrus mixtus
- Dolffin Ystlyswyn, Atlantic white-sided dolphin, Lagenorhynchus acutus
- Dolffin Pigwyn, White-beaked dolphin, Lagenorhynchus albirostris
- Corgi Môr, Porbeagle, Lamna nasus
- Llysywen Bendoll Yr Afon, European river lamprey, Lampetra fluviatilis
- Gwylan Y Penwaig, European herring gull, Larus argentatus
- Gwylan Chwerthinog, Laughing gull, Larus atricilla
- Gwylan Y Gweunydd, Common gull, Larus canus
- Gwylan Fodrwybig, Ring-billed gull, Larus delawarensis
- Gwylan Gefnddu Leiaf, Lesser black-backed gull, Larus fuscus
- Gwylan Yr Arctig, Iceland gull, Larus glaucoides
- Gwylan y Gogledd, Glaucous gull, Larus hyperboreus
- Gwylan Môr y Canoldir, Mediterranean gull, Larus melanocephalus
- Gwylan Fechan, Little gull, Larus minutus
- Gwylan Benddu, Black-headed gull, Larus ridibundus
- Lleden Fair Bedwar-Smotyn, Lepidorhombus boscii, Lepidorhombus boscii
- Gobi Fries, Fries's goby, Lesuerigobius friesii
- Twb Y Dail, European chub, Leuciscus cephalus
- Lleden Dywod, Common dab, Limanda limanda
- Rhostog Gynffonfraith, Bar-tailed godwit, Limosa lapponica
- Iâr Fôr Lysnafeddog, Common seasnail, Liparis liparis
- Llyfrothen Benddu, Lipophrys pholis, Lipophrys pholis
- Cythraul Y Môr, Lophius piscatorius, Lophius piscatorius
- Penfras Dŵr Croyw, Burbot, Lota lota
- Llyfrothen Fain, snake blenny, Lumpenus lampretaeformis
- Caplan, Capelin, Mallotus villosus
- Morfil Cefngrwm, Humpback whale, Megaptera novaeangliae
- Gwyniad Môr, Merlangius, Merlangius merlangus
- Morfil Gylfinog Sowerby, Sowerby's beaked whale, Mesoplodon bidens
- Morfil Gylfinog True, True's beaked whale, Mesoplodon mirus
- Swtan Glas, Blue whiting, Micromesistius poutassou
- Lleden Lefn, Lemon sole, Microstomus kitt
- Pysgodyn Haul, Ocean sunfish, Mola mola
- Honos Glas, Blue ling, Molva dypterygia
- Morfil Uncorn, Narwhal, Monodon monoceros
- Morgi Llyfn, Starry smooth-hound, Mustelus asterias
- Morgi Serennog, Common smooth-hound, Mustelus mustelus
- Sgorpion Môr Pedwar-Corn, Fourhorn sculpin, Myoxocephalus quadricornis
- Safngrwn, Myxine glutinosa, Myxine glutinosa
- Pibell Fôr Leiaf, Worm pipefish, Nerophis lumbriciformis
- Pibell Fôr Drwynsyth, Straightnose pipefish, Nerophis ophidion
- Morlo Ysgithrog, Walrus, Odobenus rosmarus
- Eog Cefngrwm, Pink salmon, Oncorhynchus gorbuscha
- Bonito Unlliw, Orcynopsis unicolor, Orcynopsis unicolor
- Brwyniad Conwy, European smelt, Osmerus eperlanus
- Merfog Coch, Blackspot seabream, Pagellus bogaraveo
- Gwylan Ifori, Ivory Gull, Pagophila eburnea
- Twmpot, Tompot blenny, Parablennius gattorugine
- Lleden Wadn Y Tywod, Sand sole, Pegusa lascaris
- Morfil Pen Pwmpen, Melon-headed whale, Peponocephala electra
- "Draenogyn Dŵr Croyw(G), draenogiaid dŵr croyw", European perch
- Llysywen Bendoll Y Môr, Sea lamprey, Petromyzon marinus
- Llydandroed Llwyd, Red phalarope, Phalaropus fulicarius
- Llydandroed Gyddfgoch, Red-necked phalarope, Phalaropus lobatus
- Llydandroed Wilson, Wilson's Phalarope, Phalaropus tricolor
- Pibydd Torchog, Ruff, Philomachus pugnax
- Morlo Cylchog, Ringed seal, Phoca hispida
- Morlo Cyffredin, Harbor seal, Phoca vitulina
- Llamhidydd, Harbour porpoise, Phocoena phocoena
- Lleden Benglwm Norwy, Norwegian topknot, Phrynorhombus norvegicus
- Lleden Benglwm Eckstrom, , Phrynorhombus regius
- Morfil Sberm, Sperm whale, Physeter macrocephalus
- Lleden Fwd, European flounder, Platichthys flesus
- Lleden Goch, European plaice, Pleuronectes platessa
- Corgwtiad Aur, American golden plover, Pluvialis dominica
- Chwitlyn Glas, Pollachius virens, Pollachius virens
- Pysgodyn Broc Môr, Atlantic wreckfish, Polyprion americanus
- Gobi'r Tywod, Sand goby, Pomatoschistus minutus
- Gobi Lliwgar, Painted goby, Pomatoschistus pictus
- Rhegen Fraith, Spotted crake, Porzana porzana
- Morgi Glas, Blue shark, Prionace glauca
- Merfog Arian, silver pomfret, Pterycombus brama
- Crothell Naw Pigyn, Ninespine stickleback, Pungitius pungitius
- Morgath Wen, white skate, Raja alba
- Morgath (Neu Cath Fôr), Common skate, Raja batis
- Morgath Drwynbwl, cownose ray, Raja bonasus
- Morgath Styds, Thornback ray, Raja clavata
- Morgath Gribog, shagreen ray, Raja fullonica
- Morgath Lygaid-Bach, Smalleyed ray, Raja microocellata
- Morgath Bigog, Thorny skate, Raja radiata
- Morgath Donnog, Undulate ray, Raja undulata
- Rhegen Ddŵr, Water Rail, Rallus aquaticus
- Pysgodyn Haul Main, Slender sunfish, Ranzania laevis
- Gwylan Goesddu, Black-legged Kittiwake, Rissa tridactyla
- Brithyll Seithliw, Rainbow trout, Salmo gairdneri
- Brithyll Seithliw, Rainbow trout, Salmo gairdneri
- Siwin (Neu Gwyniedyn), Brown trout, Salmo trutta
- Torgoch Afon, Brook trout, Salvelinus fontinalis
- Pennog Mair, European pilchard, Sardina pilchardus
- Pysgodyn Rhudd, Common rudd, Scardinius erythrophthalmus
- Lleden Fannog, Brill (fish), Scophthalmus rhombus
- Pysgodyn Safnlas, Scorpaenidae, Scorpaenidae
- Morgi Brych, Nursehound, Scyliorhinus stellaris
- Pysgodyn Coch, Rose fish, Sebastes marinus
- Pysgodyn Coch Norwy, Norway haddock, Sebastes viviparus
- Lleden Chwithig, Common sole, Solea solea
- Morgi Pen Morthwyl, Smooth hammerhead, Sphyrna zygaena
- Crothell Bymtheg-Pigyn, Spinachia spinachia, Spinachia spinachia
- Merfog Du, Black seabream, Spondyliosoma cantharus
- Ci Pigog, Spiny dogfish, Squalus acanthias
- Dolffin Rhesog, striped dolphin, Stenella caeruleoalba
- Draenogyn Cegfawr, Zander, Stizostedion lucioperca
- Pibell Fôr Nilsson, Lesser pipefish, Syngnathus rostellatus
- Pibell Fôr Drwynllydan, Broadnosed pipefish, Syngnathus typhle
- Merfog Asgell-Hir, Big-scale pomfret, Taractichthys longipinnis
- Sgorpion Môr, Taurulus bubalis, Taurulus bubalis
- Sgorpion Môr Norwy, Norway bullhead, Taurulus lilljeborgi
- Gobi Mannog, Leopard-spotted goby, Thorogobius ephippiatus
- Tiwna Asgell-Hir, Albacore, Thunnus alalunga
- Tiwna Melyn, Yellowfin tuna, Thunnus albacares
- Cangen Las, Grayling (species), Thymallus thymallus
- Morgath Drydan Fraith, Marbled electric ray, Torpedo marmorata
- Morgath Drydan, Atlantic torpedo, Torpedo nobiliana
- Môr-Wiber Fawr, Greater weever, Trachinus draco
- Chwyrnwr Ysgithrog, Piper gurnard, Trigla lyra
- Chwyrnwr Rhesog, Streaked gurnard, Trigloporus lastoviza
- Codyn Llwyd, Trisopterus luscus, Trisopterus luscus
- Dolffin Trwyn Potel, Common bottlenose dolphin, Tursiops truncatus
- Pysgodyn Cleddyf, Swordfish, Xiphias gladius
- Pysgodyn Darn Arian, John Dory, Zeus faber
- Morfil Gylfinog Cuvier, Cuvier's beaked whale, Ziphius cavirostris