News
SpeciesScientists Discover Mysterious New Fish in the Red Sea – and Have Never Seen It AgainOceanEye to eye with Britain's hidden sharks at SharkAdemy - OceanographicRiversIn October, biologists surveying a New York harbor for invasive fish pulled up a bright yellow one. It wasn't an invasive species at allOceanShedd Aquarium Sends Shark Eggs to Bolster Wild PopulationsSpeciesA rare fish has been found in Lake Ontario, North America, whose entire body is golden. It is a nati..OceanThe Great Sea Reef Is Fiji’s Wildest Dive, and a New Frontier for ConservationOceanEckerd College professor contributes to designating Biscayne Bay an Important Shark and Ray AreaSpeciesRio Verde Grande Survey Identifies Fifty-Three Fish Species Facing Flow ReductionsFisheriesAdams River Salmon Run in Thompson-NicolaIndiaHilsa production dropped 26% in five years, fisheries minister tells parliamentSpeciesScientists Discover Mysterious New Fish in the Red Sea – and Have Never Seen It AgainOceanEye to eye with Britain's hidden sharks at SharkAdemy - OceanographicRiversIn October, biologists surveying a New York harbor for invasive fish pulled up a bright yellow one. It wasn't an invasive species at allOceanShedd Aquarium Sends Shark Eggs to Bolster Wild PopulationsSpeciesA rare fish has been found in Lake Ontario, North America, whose entire body is golden. It is a nati..OceanThe Great Sea Reef Is Fiji’s Wildest Dive, and a New Frontier for ConservationOceanEckerd College professor contributes to designating Biscayne Bay an Important Shark and Ray AreaSpeciesRio Verde Grande Survey Identifies Fifty-Three Fish Species Facing Flow ReductionsFisheriesAdams River Salmon Run in Thompson-NicolaIndiaHilsa production dropped 26% in five years, fisheries minister tells parliament
EveryFish

All fish

376 fish so far, best known first. 815 more are on the list to be written.

WorldBluehead wrasse A small Atlantic reef fish known for changing sex and colour.Other · Coral reefs WorldCommon fangtooth A small, black deep-sea fish with large fangs found worldwide.Other · Open ocean · 1833 🇸🇷 Suriname and 2 moreRedeye piranha A large freshwater fish from South America with a rhombus-shaped body and red eyes.Other · Rivers and lakes · 1766 🇺🇸 United States and 1 moreMexican tetra A freshwater characin with surface and blind cave forms, studied for evolutionary biology.Other · Rivers and lakes 🇺🇸 United StatesDelta smelt A tiny, endangered fish native to California's Sacramento-San Joaquin River Delta.Other · Rivers and lakes · 1963 Northern cavefish 🇺🇸 United StatesNorthern cavefish A blind fish living in caves of Kentucky and IndianaOther · Rivers and lakes 🇨🇺 CubaCuban gar Large tropical freshwater predator native to western Cuba.Other · Rivers and lakes WorldThree-spined stickleback Small northern fish known for rapid evolution and complex breeding.Other · Rivers and lakes WorldNinespine stickleback Small freshwater fish with variable spines found across the Northern Hemisphere.Other · Rivers and lakes 🇧🇷 Brazil and 4 moreHoplias aimara A large freshwater predator from South America known for its size and mercury accumulation.Other · Rivers and lakes · 1846 WorldDeepsea lizardfish A deep-ocean predator with a flattened head and large eyes found in tropical seas worldwide.Other · Deep sea · 1878 WorldGlasshead barreleye Deep-sea fish with mirror-based eyesOther · Open ocean WorldBarreleye Deep-sea fish with tubular eyes and a light-producing anusOther · Open ocean WorldHumpback anglerfish Deep-sea black seadevil with a glowing lureOther · Open ocean · 1863 WorldSloane's viperfish Deep-sea dragonfish with huge teeth and light organsOther · Open ocean · 1801 WorldBlack swallower Deep-sea fish that eats prey larger than itselfOther · Open ocean WorldPacific blackdragon Deep-sea fish with light-absorbing skin and a glowing chin lure.Other · Open ocean WorldTripod fish Deep-sea fish that stands on elongated finsOther · Open ocean 🇯🇵 JapanJapanese rice fish Small freshwater fish native to Japan and a key model organism.Other · Rivers and lakes 🇵🇦 Panama and 1 moreGlass knifefish Translucent electric fish from South American riversOther · Rivers and lakes 🇺🇸 United StatesSouthern cavefish A blind cavefish from the eastern United States.Other · Rivers and lakes · 1859 South AsiaGreen spotted puffer Small brackish water pufferfish with a tiny genomeOther · Rivers and lakes Sub-Saharan AfricaFreshwater butterflyfish Surface-dwelling African fish that glides above water.Other · Rivers and lakes 🇰🇭 Cambodia and 3 moreMoonlight gourami A small, silvery labyrinth fish native to Southeast Asian rivers and swamps.Other · Rivers and lakes 🇨🇳 China and 1 moreParadise fish Aggressive freshwater gourami from East AsiaOther · Rivers and lakes WorldWrasse A large family of colourful marine fish known for sex change and cleaning symbiosis.Reef fish · Coasts and shelves 🇺🇸 United States and 1 moreRazorback sucker Endangered river fish with a distinctive back ridgeOther · Rivers and lakes WorldPorcupinefish Spiny marine fish that inflate into a defensive sphere to deter predators.Other · Coasts and shelves 🇺🇸 United StatesDevils Hole pupfish A tiny fish found only in one cavern in Nevada.Other · Rivers and lakes · 1930 🇦🇺 AustraliaCommon seadragon Camouflaged marine fish with leaf-like appendages found in southern Australia.Other · Coasts and shelves

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Every Monday: the fish of the day, new pages on EveryFish, and the conferences and anniversaries of the week ahead.