Explore 36,937 Species
Southern Studfish
Fundulus stellifer (Jordan, 1877)
Fundulus stellifer, the southern studfish, is a small North American killifish w…
Southern Plains Killifish
Fundulus zebrinus Jordan & Gilbert, 1883
Fundulus zebrinus is a small central US killifish, often used as angling bait, t…
California Killifish
Fundulus parvipinnis Girard, 1854
Fundulus parvipinnis, the California killifish, is a small west coast North Amer…
Longnose Killifish
Fundulus similis (Baird & Girard, 1853)
Longnose killifish (Fundulus similis) is a tropical western Atlantic killifish t…
Striped Killifish
Fundulus majalis (Walbaum, 1792)
Fundulus majalis, the striped killifish, is a sexually dimorphic North American …
Diamond Killifish
Fundulus xenicus Jordan & Gilbert, 1882
The diamond killifish (Fundulus xenicus) is a small North American killifish fou…
Pygmy Killifish
Leptolucania ommata (Jordan, 1884)
Leptolucania ommata, the Pygmy killifish, is a small North American killifish en…
Bluefin Killifish
Lucania goodei Jordan, 1880
Lucania goodei, the bluefin killifish, is a small North American killifish found…
Rainwater Killifish
Lucania parva (Baird & Girard, 1855)
Lucania parva, the rainwater killifish, is a small North American fish native to…
Western Mosquitofish
Gambusia affinis (Baird & Girard, 1853)
Gambusia affinis, the western mosquitofish, is a widespread small freshwater fis…
Eastern Mosquitofish
Gambusia holbrooki Girard, 1859
Gambusia holbrooki (eastern mosquitofish) is a small invasive livebearing fish w…
Mangrove Gambusia
Gambusia rhizophorae Rivas, 1969
Gambusia rhizophorae, the mangrove gambusia, is a brackish fish found in Florida…
Tenspotted Live-bearer
Cnesterodon decemmaculatus (Jenyns, 1842)
Cnesterodon decemmaculatus is a small fish species described in 1843 from the HM…
Pike Topminnow
Belonesox belizanus Kner, 1860
Belonesox belizanus, the pike topminnow, is a specialized livebearing predatory …
Least Killifish
Heterandria formosa Girard, 1859
Heterandria formosa is a tiny North American poeciliid fish that lives in fresh …
Speckled Mosquitofish
Phalloceros caudimaculatus (Hensel, 1868)
Phalloceros caudimaculatus, the dusky millions fish, is a livebearing fish nativ…
Sailfin Molly
Poecilia latipinna (Lesueur, 1821)
Poecilia latipinna, the sailfin molly, is a tolerant euryhaline livebearer fish …
Common Molly
Poecilia sphenops Valenciennes, 1846
Poecilia sphenops (common molly) is a small sexually dimorphic livebearing poeci…
Guppy
Poecilia reticulata Peters, 1859
Poecilia reticulata (guppies) are small, sexually dimorphic fish with well-docum…
Shortfin Molly
Poecilia mexicana Steindachner, 1863
Poecilia mexicana, the Atlantic molly, is a widely distributed Middle American p…
Yucatán Molly
Poecilia velifera (Regan, 1914)
Poecilia velifera, the Yucatán molly, is a vulnerable, sexually dimorphic livebe…
Endler's Livebearer
Poecilia wingei Poeser, Kempkes & Isbrücker, 2005
Poecilia wingei, or Endler's livebearer, is a small colorful livebearing fish na…
Orange Finned Toothcarp
Priapichthys annectens (Regan, 1907)
Priapichthys annectens is a small fish native to Central America with distinct s…
Green Swordtail
Xiphophorus hellerii Heckel, 1848
Xiphophorus hellerii, the green swordtail, is a popular aquarium fish with a cha…
