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= Xiphophorus is a genus of freshwater fish in family Poeciliidae of order Cyprinodontiformes. The type species is X. hellerii, the green swordtail.=
Poecilia reticulata is the current taxonomic name. They used to be Lebistes reticulata.
The scientific name of the Mosquito fish is Gambusia affinis. It belongs to the family Poeciliidae and the order Cyprinodontiformes.