What is "tolypeutes"

The genus Tolypeutes contains the two species of three-banded armadillos. They are restricted to open and semi-open habitats in South America.

Of the several armadillo genera, only Tolypeutes rely heavily on their armor for protection. When threatened by a predator, Tolypeutes species frequently roll up into a ball. Other armadillo species cannot roll up because they have too many plates.