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1. Any of various small fishes of the family Fundulidae of North America, Bermuda, and Cuba, found in fresh, brackish, and coastal marine waters.
2. Any of several similar fishes of the family Poeciliidae.

[So called because the fish swim near the surface of the water.]


n, pl -now or -nows
(Animals) any of various small American freshwater cyprinodont fishes that are either viviparous (genera Heterandria, Gambusia, etc) or egg-laying (genus Fundulus)
[from top1 + minnow; so called because they are small and swim near the surface of the water]


(ˈtɒpˌmɪn oʊ)

n., pl. (esp. collectively) -now, (esp. for kinds or species) -nows.
any of various small carplike fishes that swim near the surface of fresh or brackish waters in warm climates, as certain killifishes and livebearers: eaters of mosquito larvae.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.topminnow - small usually brightly-colored viviparous surface-feeding fishes of fresh or brackish warm waterstopminnow - small usually brightly-colored viviparous surface-feeding fishes of fresh or brackish warm waters; often used in mosquito control
cypriniform fish - a soft-finned fish of the order Cypriniformes
Gambusia affinis, mosquitofish - silvery topminnow with rows of black spots of tropical North America and West Indies; important in mosquito control
platy, Platypoecilus maculatus - small stocky Mexican fish; popular aquarium fish
mollie, molly - popular aquarium fish
2.topminnow - freshwater fish of Central America having a long swordlike tailtopminnow - freshwater fish of Central America having a long swordlike tail; popular aquarium fish
cyprinodont - any member of the family Cyprinodontidae
References in periodicals archive ?
The blackspotted topminnow Fundulus olivaceus and bluntnose minnow Pimephales notatus were significant indicators of perennial flow in both 2012 and 2013 (Table 4).
The Barrens topminnow (Fundulus julisia) is one of the most critically endangered fishes of the southeastern United States yet lacks protection from the Endangered Species Act.
Once among the most abundant fishes in the Salt and Gila River drainages of Arizona, the Gila topminnow, Poeciliopsis occidentalis occidentalis, has undergone widespread decline and extirpation throughout much of its range due to habitat degradation and the introduction of nonnative fish species (Meffe et al.
promelas), Creek Chub (Semotilus atromaculatus), White Sucker (Catostomus commersonii), Black Bullhead, Yellow Bullhead (Ameiurus natalis), Blackstripe Topminnow (Fundulus notatus), Tadpole Madtom (Noturus gyrinus), Green Sunfish, Bluegill (Lepomis macrochirus), and Longear Sunfish (L.
Fitness differences among remnant populations of the Sonoran topminnow, Poeciliopsis occidentalis.
The state-threatened northern Starhead Topminnow (Fundulus dispar), which is found within similar habitats (e.
In 1989 Paul Skelton, Dale Kenmuir and I surprisingly found weed-loving UZ fishes, the dwarf citharine, copper-striped barb, spot-tail barb, upjaw barb and meshscaled topminnow, all caught by hand-net in the vicinity of Olive Beadle and Msuna camps at the western extremes of the lake.
Life history and ecology of the barrens topminnow, Fundulus julisia Willians and Etnier (Pisces, Fundulidae).
Twenty species are federally threatened or endangered including the jaguar, ocelot, Mexican wolf, jaguaramundi, coatimundi, thick-billed parrot, Mexican spotted owl, aplomado and peregrine falcon, bald eagle, long-nosed bat, Yaqui chub, Yaqui topminnow, and Beautiful shiner.
This study documents a new county record and the first time the golden topminnow has been reported from the Saline River.
rufipunctatus), Gila topminnow (Poeciliopsis occidentalis), Tarahumara frog (Lithobates tarahumarae), lowland leopard frog (Lithobates yavapaiensis), and Chiricahua leopard frog.