How to Identify Fundulidae

Fundulidae is a animal family in the Animalia kingdom, order Cyprinodontiformes, class . The family contains 25 accepted species worldwide.

Key Identification Features

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Representative Fundulidae Species

How to identify Fundulus stellifer (Jordan, 1877)

Fundulus stellifer (Jordan, 1877)

Fundulus stellifer (Jordan, 1877)

Fundulus stellifer, the southern studfish, is a small North American killifish w…

How to identify Fundulus notatus (Rafinesque, 1820)

Fundulus notatus (Rafinesque, 1820)

Fundulus notatus (Rafinesque, 1820)

Blackstripe topminnow (Fundulus notatus) is a small freshwater fish with distinc…

How to identify Fundulus parvipinnis Girard, 1854

Fundulus parvipinnis Girard, 1854

Fundulus parvipinnis Girard, 1854

Fundulus parvipinnis, the California killifish, is a small west coast North Amer…

How to identify Fundulus seminolis Girard, 1859

Fundulus seminolis Girard, 1859

Fundulus seminolis Girard, 1859

Fundulus seminolis, the Seminole killifish, is a fish endemic to most of peninsu…

How to identify Fundulus heteroclitus (Linnaeus, 1766)

Fundulus heteroclitus (Linnaeus, 1766)

Fundulus heteroclitus (Linnaeus, 1766)

Fundulus heteroclitus (mummichog) is a small North Atlantic coastal killifish wi…

How to identify Lucania goodei Jordan, 1880

Lucania goodei Jordan, 1880

Lucania goodei Jordan, 1880

Lucania goodei, the bluefin killifish, is a small North American killifish found…

How to identify Fundulus majalis (Walbaum, 1792)

Fundulus majalis (Walbaum, 1792)

Fundulus majalis (Walbaum, 1792)

Fundulus majalis, the striped killifish, is a sexually dimorphic North American …

How to identify Fundulus lineolatus (Agassiz, 1854)

Fundulus lineolatus (Agassiz, 1854)

Fundulus lineolatus (Agassiz, 1854)

Fundulus lineolatus, the lined topminnow, is a small common North American fish …

How to identify Fundulus sciadicus Cope, 1865

Fundulus sciadicus Cope, 1865

Fundulus sciadicus Cope, 1865

Fundulus sciadicus, the plains topminnow, is a small freshwater fish native to t…

How to identify Fundulus similis (Baird & Girard, 1853)

Fundulus similis (Baird & Girard, 1853)

Fundulus similis (Baird & Girard, 1853)

Longnose killifish (Fundulus similis) is a tropical western Atlantic killifish t…

How to identify Leptolucania ommata (Jordan, 1884)

Leptolucania ommata (Jordan, 1884)

Leptolucania ommata (Jordan, 1884)

Leptolucania ommata, the Pygmy killifish, is a small North American killifish en…

How to identify Fundulus catenatus (Storer, 1846)

Fundulus catenatus (Storer, 1846)

Fundulus catenatus (Storer, 1846)

Fundulus catenatus, the northern studfish, is a sexually dimorphic North America…

Browse all 25 Fundulidae species →

Frequently Asked Questions

How do you identify Fundulidae?

Fundulidae animals belong to the Cyprinodontiformes order in the Animalia kingdom. Breeding males have striking coloration: distinct, irregular orange spots are speckled across the entire body, extending to the head and fin bases. For instant identification, use the iNature app — AI-powered and works offline.

What are the key characteristics of Fundulidae?

Fundulidae is classified in the order Cyprinodontiformes, class , phylum Chordata. Males and females of this species have distinct appearances.

Sources: GBIF, iNaturalist, Wikipedia · Disclaimer

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