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see killifishkillifish,
any of more than a thousand species of small fish of the several families of the order Cyprinodontiformes (toothed minnows or toothed carps), a group that includes also the topminnows and many popular aquarium fishes (e.g.
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; mollymolly
or mollie,
New World fish of the genus Poecilia, which includes the guppy or rainbow fish, Poecilia reticulata. Mollies, which are related to the killifishes, are found from the E and central United States to Argentina.
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(Lebistes reticulatus), a fish of the family Poeciliidae of the order Cyprinoidae. The males measure up to 4 cm long and the females, up to 6 cm. The coloration of the males is a combination of black, red, light blue, silver, and gold tones. The females are gray, sometimes gold. The guppy is found in the freshwaters of Venezuela, northern Brazil, Guiana, and the islands of Barbados and Trinidad. It is one of the most popular aquarium fish. A number of varieties have been bred which are larger and more brightly colored than the original form, with elongated caudal (trailing) or dorsal fins (scarf).


Il’in, M . N. Akvariumnoe rybovodstvo, 2nd ed. Moscow, 1968.


a small brightly coloured freshwater viviparous cyprinodont fish, Lebistes reticulatus, of N South America and the Caribbean: a popular aquarium fish
References in periodicals archive ?
In the same year, the Guppys manufactured their own coins, which were legal tender (see illustration), and the following year, 1812, Sarah registered her 'tea and coffee urns' patent--these years seem to have been particularly busy.
First, in addition to running the experiment with a single guppy on the prey side, we also ran trials with 4 guppies on the prey side (4 observers, 1 per guppy).
This week Guppy sinks to a new low, which seesm him stealing cocaine from Stitch's secret supply.
He praises the new guppy project as "a Herculean effort.
Guppy, 35, is seen by Lennie Lawrence as excellent cover for emerging Wales cap Paul Parry.
If Guppy had forgotten all about the harsh realities of the Premiership, it did not take long for the 34-year- old midfielder to be given the rudest of wake-upcalls.
Guppy has rejoined City on a free transfer from Celtic and has signed a short-term contract until the end of the current campaign.
Guppy (57) brought a shotgun to London from his Gloucestershire home and shot her as she returned home from work.
Norwegian arbiter Terje Hauge cautioned Stilian Petrov and Steve Guppy at Parkhead, but neither Hoops men are particularly high up the betting to be the first shown a card in the rematch.
We have addressed this objective in a series of laboratory experiments for the purpose of studying the effects of EDCs on selected sexual characteristics in the guppy (Poecilia reticulata).