Gymnophthalmus vanzoi Carvalho, 1997

Type-locality. Fazenda Salvamento, Rio Uraricoera, Roraima, Brazil.

Pertinent taxonomic references. Cunha (1981; identified as Gymnophtalmus underwoodi), Carvalho (1997), Pellegrino et al. (2001), Benozzati & Rodrigues (2003), Castoe et al. (2004), Goicoechea et al. (2016).

Distribution and habitat. Gymnophthalmus vanzoi is endemic to northern Amazonia, typical of the Lavrado area of the Guiana region, occurring in Brazil (Fig. 11) and Guyana (Cole et al. 2013). In Brazil, it is only known from the Roraima state. Gymnophthalmus vanzoi is sexually dimorphic, terrestrial, and diurnal, inhabits open vegetation areas (savannas), where it is found among leaf litter and on open sandy soil (Carvalho 1997).