Argentina and Bolivia
Like other South American countries, the werebeasts here are usually werejaguars, known as runa-uturungu, uturunco, yaguareté-abá, kanima and other names depending on the region. In some tribes, all shamans were thought to have the ability to become jaguars. Female werejaguars have an extra pair of nipples that betray their true nature. A woman with "supernumary nipples" may find herself to be accused of being this creature. In the early 1900s, the legends of weres in Argentina became so widespread that children were being abandoned or killed to protect them from the curse. In the 1920s, Hipólito Irigoyen came to power backed by the Cabal, and managed to get a law passed making all such children the president's godchildren; they receive a gold medal at their baptism, and even today attending the baptisms is an important campaign event.
There are also urban legends about jaguar shapeshifters lurking along highways in tales similar to the vanishing hitchhiker and of them being assassins secretly employed by the government or organized crime.
The fox-like werewolf here was brought by European settlers and is called lobizón or lobisón. It eats excrement, carrion and sometimes non-baptised babies. The seventh consecutive child of the same gender may spontaneously become a lycanthrope, as may surviving victims, just as for other weres.
Tula Vieja has been and continues to be sighted in Panama on a regular basis. The creature takes the form of a very, very old woman or witch (bruja) with a crow's foot for a right hand. This child-eating shifter haunts all places dark and dismal, waiting to take anyone back to Hell with her that she can get her claw/hand on.