Lontra longicaudis is present from Northwestern Mexico, south into South America; it is the most common otter in Mexico and has the widest distribution of the three S. American Lontra species.
The range extends into Uruguay, Paraguay, and across northern Argentina.
Biogeographic Regions: nearctic (Native ); neotropical (Native )
Rights Holder: The Regents of the University of Michigan and its licensors
Bibliographic Citation: Berry, K. 2000. "Lontra longicaudis" (On-line), Animal Diversity Web. Accessed April 27, 2013 at
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