What is "mussurana"

The mussurana or musurana (Portuguese muçurana) is a genus (Clelia) of colubrid snakes found in Central America and South America, from Guatemala to Brazil. They specialize in ophiophagy, i.e., they attack and eat other snakes. Currently six species are recognized. They have other popular names in various countries, such as zopilota in Central America and cribo on some Caribbean islands (though they are not related to Drymarchon).