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RiversEl Niño seen disrupting fish migration patterns SpeciesScientists Discover Mysterious New Fish in the Red Sea – and Have Never Seen It Again OceanEye to eye with Britain's hidden sharks at SharkAdemy - Oceanographic RiversIn October, biologists surveying a New York harbor for invasive fish pulled up a bright yellow one. It wasn't an invasive species at all OceanShedd Aquarium Sends Shark Eggs to Bolster Wild Populations SpeciesA 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 Conservation OceanEckerd College professor contributes to designating Biscayne Bay an Important Shark and Ray Area SpeciesRio Verde Grande Survey Identifies Fifty-Three Fish Species Facing Flow Reductions FisheriesAdams River Salmon Run in Thompson-Nicola RiversEl Niño seen disrupting fish migration patterns SpeciesScientists Discover Mysterious New Fish in the Red Sea – and Have Never Seen It Again OceanEye to eye with Britain's hidden sharks at SharkAdemy - Oceanographic RiversIn October, biologists surveying a New York harbor for invasive fish pulled up a bright yellow one. It wasn't an invasive species at all OceanShedd Aquarium Sends Shark Eggs to Bolster Wild Populations SpeciesA 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 Conservation OceanEckerd College professor contributes to designating Biscayne Bay an Important Shark and Ray Area SpeciesRio Verde Grande Survey Identifies Fifty-Three Fish Species Facing Flow Reductions FisheriesAdams River Salmon Run in Thompson-Nicola

EveryFish

Cyprinodontidae

6 fish on EveryFish name Cyprinodontidae among their families.

🇲🇽 MexicoCatarina pupfish A tiny Mexican spring fish that vanished in 2014.Other · Rivers and lakes · 1972 🇺🇸 United StatesTecopa pupfish Extinct subspecies of killifish from California hot springs.Livebearer · Rivers and lakes · 1948

🇺🇸 United States and 2 morePupfish Small killifish known for surviving in extreme isolated waters.Livebearer · Rivers and lakes 🇵🇪 Peru and 1 moreTiticaca orestias Largest killifish of Lake Titicaca, likely extinct.Livebearer · Rivers and lakes

🇺🇸 United StatesDevils Hole pupfish A tiny fish found only in one cavern in Nevada.Other · Rivers and lakes · 1930 🇺🇸 United StatesFlagfish Small Florida pupfish with a US flag patternLivebearer · Rivers and lakes · 1879

Photo credits on this page

The small pictures above come from Wikimedia Commons under free licences. Some are cropped to fit.

Pupfish: P.V. Loiselle, CC BY-SA 3.0, source
Devils Hole pupfish: Olin Feuerbacher / USFWS, Public domain, source

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