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Family: Fundulidae

The killifishes in this North American family are small, soft-rayed fish with upturned mouths. Although they are similar in appearance to minnows, they differ from members of that family in having teeth on their jaws and scales on their heads. These are egg-laying fish. Although five species are found in inland waters in New York, only one is strictly freshwater. It is native to all drainages in the state. It is typically found in shallow water in lakes or in slow water in streams, often in areas with abundant aquatic vegetation. The other four species occur in the lower Hudson River and in the streams of Long Island. Some of these species are relatively rare in the coastal waters of the state. Only two species are shown on maps.

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