Mammalia - Carnivora - Mustelidae

Alternative combination: Lutra longicaudis

Belongs to Lontra according to S. Larivière 1999

Sister taxa: Lontra canadensis, Lontra felina, Lontra provocax

Subtaxa: Lontra longicaudis annectens, Lontra longicaudis enudris, Lontra longicaudis longicaudis

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Ecology: amphibious carnivore-omnivore

Average measurements (in mm): femur length 74.3, humerus length 76.4, radius length 50.8, skull 103.9 x 71.3, tibia length 79.0

Estimated body mass: 1.86 kg based on femur length, humerus length, and tibia length