Alopoglossus atriventris Duellman, 1973

Ribeiro-Júnior, Marco A. & Amaral, Silvana, 2017, Catalogue of distribution of lizards (Reptilia: Squamata) from the Brazilian Amazonia. IV. Alopoglossidae, Gymnophthalmidae, Zootaxa 4269 (2), pp. 151-196: 154

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Alopoglossus atriventris Duellman, 1973


Alopoglossus atriventris Duellman, 1973 

Type-locality. Lago Agrio, Provincia Napo, Ecuador. 

Pertinent taxonomic references. Duellman (1973, 1978), Ávila-Pires (1995), Pellegrino et al. (2001), Castoe et al. (2004), Kӧhler et al. (2012), Lobos (2013), Torres-Carvajal & Lobos (2014), Goicoechea et al. (2016).

Taxonomic remarks. The molecular phylogeny of Alopoglossus  species from Ecuador presented by Lobos (2013) revealed paraphyletism of A. atriventris  . In two distinct subclades, the author presented at least three different candidates of possible new species in A. atriventris  . Preliminary results of a phylogeographical study of Alopoglossus  species, by F. Werneck, MAR-J, and team, suggest two different lineages of A. atriventris  in Brazil.

Distribution and habitat. Alopoglossus atriventris  is endemic to western Amazonia  , with its eastern distribution delimited by the Negro and Tapajós rivers, occurring in Brazil, Colombia, Ecuador, and Peru ( Fig. 1View FIGURE 1). In Brazil, it is known from the states of Amazonas, Acre, and Rondônia. Alopoglossus atriventris  is terrestrial and diurnal, inhabits terra firme forest (primary forest and forest disturbed due to logging—Duellman 1973, 1978; Ávila-Pires 1995), where it is mainly found among leaf litter, in shaded or partially shaded spots (Vitt et al. 2007). Dixon & Soini (1986) reported it "associated with slopes of small hills surrounding temporary or permanent swampy areas". Vitt et al. (2007) reported two individuals climbing the base of tree trunks (about 0.6 m above ground).