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| Elopiformes | ||||||||
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 Death Valley Pupfish, spawning in Salt Creek | ||||||||
| Scientific classification | ||||||||
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Anablepidae (four-eyed fish) Cyprinodontidae (pupfish) Fundulidae Goodeidae Rivulinidae Poeciliidae (live-bearers) and others |
The Cyprinodontiformes is 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.