Catalogue of distribution of lizards (Reptilia: Squamata) from the Brazilian Amazonia. IV. Alopoglossidae, Gymnophthalmidae Ribeiro-Júnior, Marco A. Amaral, Silvana Zootaxa 2017 4269 2 151 196 [151,291,1014,1040] Reptilia Gymnophthalmidae Cercosaura Animalia Squamata 15 166 Chordata genus   Distribution and habitat.  Cercosaurasp. 1 is endemic to southern Brazilian Amazonia, where it occurs between the Curuá/Iriri and Purus rivers ( Fig. 10). It is known from the states of Pará, Amazonas, Rondônia, and Mato Grosso.  Cercosaurasp. 1 is terrestrial and diurnal, inhabits primary and secondary terra firme forests, and disturbed areas near forest edges, where it is mainly found on the ground (Macedo et al.2008—referred to as  C. ocellata bassleri; MPEG data).