Onca d’agua
The Giant River Otter [or Giant Otter], sometimes known colloquially as Onca d’agua [Portuguese for Jaguar of the water], is not really a Jaguar at all. In fact, the South American species is a member of the mustelid or weasel family, yet … a truly efficient predator, not unlike the Jaguar.
~ Anecdote and Giant River Otter capture, Onca d’agua © Jerry L. Ferrara. Pantanal, Brazil