Concept

Sailfin molly

Summary
The sailfin molly (Poecilia latipinna) is a species of fish in the genus Poecilia. As with the other types of mollies, P. latipinna is a livebearer, giving birth to free-swimming babies (rather than laying eggs), a trait they share with similar fish species such as guppies, platies and swordtails. Sailfin mollies typically inhabit both freshwater and brackish waterways along the East Coast of the United States, from North Carolina south to Florida, and around the Gulf of Mexico to Texas, and south to the Yucatán Peninsula of México. Given their preference for more brackish water conditions, mollies are often found within just a few yards or miles of the ocean, inhabiting coastal estuaries, lagoons, river deltas and swamps, as well as tidal areas (such as mangrove swamps) with a regular inflow of oceanic minerals and nutrients mixing with inland freshwater sources. The sailfin molly was originally described in 1821 as Mollienesia latipinna by the naturalist Charles Alexandre Lesueur, who based his description upon specimens from freshwater ponds in the vicinity of New Orleans, Louisiana. However, Lesueur described other collections of the sailfin molly as Mollienesia multilineata in 1821, the same year in which he described M. latipinna. This conflict created confusion and eventually necessitated a ruling by the International Commission on Zoological Nomenclature (ICZN). In 1959, the ICZN placed precedence on the name Mollienesia latipinna Lesueur 1821. In a landmark definitive work on poeciliid fishes, Donn Rosen and Reeve Bailey (1959) noted the priority of Poecilia by Marcus Elieser Bloch and Johann Gottlob Schneider (1801) with regards to Mollienesia by Lesueur (1821), thereby relegating Mollienesia to the synonymy of Poecilia. Some names for the sailfin molly in other languages include Breitflossenkärpfling (German), seilfinnemolly (Norwegian), zeilvinkarper (Dutch), leveäevämolli (Finnish), molinezja szerokopłetwa (Polish), bubuntis (Tagalog), and molliénésie á voilure or simply "molly voile" (French).
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