Sibon nebulata (Linnaeus, 1758) “Dormideira”

(Figs. 18.5 and 31.1)

This species is recorded only for a few localities in Ceará State. It was recorded only above 600 m elevation in isolated plateaus. It is also recorded in Amazonia and Atlantic Forest regions (Cunha & Nascimento 1978; Martins & Oliveira 1998; Freire 1998). According to Loebmann and Haddad (2010), it is found on relictual moist forests in Caatinga. It has semi-arboreal habits, is nocturnal, and feeds on mollusks (Cunha & Nascimento 1978).