Pteronura sandbachii = P. brasiliensis
Date 1868
Source Proceedings of the Zoological Society of London 1868 (https://archive.org/stream/proceedingsofgen68zool#page/n95/mode/1up)
Author Joseph Wolf (1820–1899)
Source: https://commons.wikimedia.org/wiki/File:PteronuraSandbachiWolf.jpg

The giant otter or giant river otter (Pteronura brasiliensis) is a South American carnivorous mammal of the weasel family, Mustelidae. Atypical of mustelids, the giant otter is a social species, with family groups typically supporting three to eight members. The giant otter ranges across north-central South America; it lives mostly in and along the Amazon River and in the Pantanal.

Order: Carnivora
Family: Mustelidae
Genus: Pteronura
Species: Pteronura brasiliensis (Gmelin, 1788)