Is it a fox or an ape shifter? Hard to say. I guess shape-shifters are tricky that way.
Maberry says the lobizon of Argentina (also parts of Brazil, Paraguay and Uraguay) might be somehow connected to the lobishomen of Brazil, but other than the etymology, I can’t see how. Lobishomen are vampiric female nymphomanics, and lobizon are were-dogs/foxes/apes that walk upright. Guiley says they’re dogs. Maberry says they’re foxes. If anyone wants to fund a trip to Argentina for me for some research, I’m up for it.
Maybe we can understand the confusion if we factor in the Old World. In Portugal, a lobishomen is a type of werewolf, much closer to the lobizon than the Brazilian lobishomen.
Whether it looks more like an ape or a fox, the lobizon eats dead flesh, bodily waste, and babies who haven’t been baptized. Fire and steel will kill it, and aconite, an herb, will ward it off.
Approach the lobizon with caution, and avoid cornering it unless you and your friends want to have your heads ripped off.
Vampire Universe: The Dark World of Supernatural Beings That Haunt Us, Hunt Us, and Hunger for Us (Paperback)
by Jonathan Maberry
The Encyclopedia of Vampires, Werewolves, and Other Monsters
by Rosemary Ellen Guiley