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Pomacea maculata
Image courtesy of The Bugwood Network through the Encyclopedia of Life and the creative commons CC BY 3.0 license.
Pomacea maculata
Taxonomic Group: Mollusks-Gastropods


Pomacea maculata is a large freshwater snail commonly known as the Spotted Apple Snail. It is native to South America from Uruguay, Paraguay, and the bordering areas of Brazil and Argentina, north to the Amazon River. In North America, it has been introduced to tidal freshwater regions of Florida, Alabama, Louisiana, and Texas. Introduced populations are also known from China, Korea, Japan, Indonesia, and Spain. Its spread is largely attributed to the aquarium trade, but in some areas it was introduced as a potential food resource. In parts of its introduced range P. maculata is regarded as a potentially serious agricultural and ecological pest. Possible impacts include extensive herbivory in wetlands, altering wetland water quality, and competition with native snails.

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Fofonoff PW, Ruiz GM, Steves B, Simkanin C, & Carlton JT (2018)
National Exotic Marine and Estuarine Species Information System.
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Marine Invasions Lab
Smithsonian Environmental Research Center

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