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Cyprinodontiformes

An order of ray-finned fish, also called the Microcyprini, and comprising mostly small, fresh-water fish. They are closely related to the Atheriniformes[?] and are occasionally included with them. Many popular aquarium fish, such as killifish and live-bearers, belong here.

Family Anablepidae[?] (four-eyed fish)
Family Cyprinodontidae[?] (pupfish)
Family Fundulidae[?]
Family Goodeidae[?]
Family Rivulinidae[?]
Family Poeciliidae (live-bearers)
...

Death Valley pupfish

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