He's got fosetas on his face. He has eyes, pits on his face. With holes in the face. It is the name of a genus of very venomous snakes in the family Viperidae. In Colombia they are listed as fournarices, mapans or rotdoras.
Bothrops : Genus of venomous snakes from the subfamily of foseta vipers that inhabit Mexico, Central America, Lesser Antilles and part of South America.