Alopoglossus atriventris, known commonly as the keel-bellied shade lizard, is a species of lizard in the family Alopoglossidae. The species is endemic to northwestern South America.
Etymology The specific name, atriventris, is from Latin ater (black) + venter (belly),Wright AH, Wright AA (1957). Handbook of Snakes of the United States and Canada. Ithaca and London: Comstock Publishing Associates, a division of Cornell University Press. 1,055 pp. (in two volumes). ("English equivalents of Latin names", p. 3). referring to the black belly of the male.Duellman (1973).
Geographic range A. atriventris is found in Brazil (Acre, western Amazonas), Colombia, Ecuador, and Peru.
Habitat The natural habitat of A. atriventris is lowland tropical forest at altitudes of , where it lives in the leaf litter of the forest floor.
Reproduction A. atriventris is oviparous.
References
Further reading Duellman WE (1973). "Descriptions of New Lizards from the Upper Amazon Basin". Herpetologica 29 (3): 228–231. (Alopoglossus ariventris, new species, p. 228). Köhler G, Diethert H-H, Veselý M (2012). "A Contribution to the Knowledge of the Lizard Genus Alopoglossus (Squamata: Gymnophthalmidae)". Herpetological Monographs 26 (1): 173–188. Ribeiro-Júnior MA (2018). "A new species of Alopoglossus lizard (Squamata, Alopoglossidae) from the Southern Guiana Shield, northeastern Amazonia, with remarks on diagnostic characters to the genus". Zootaxa 4422 (1): 025–040. Ribeiro-Júnior MA, Amaral S (2017). "Catalogue of distribution of lizards (Reptilia: Squamata) from the Brazilian Amazonia. 4. Alopoglossidae, Gymnophthalmidae". Zootaxa 4269 (2): 151–196. Vitt LJ, Ávila-Pires TCS, Espósito MC, Sartorius SS, Zani PA (2007). "Ecology of Alopoglossus angulatus and A. atriventris (Squamata, Gymnophthalmidae) in western Amazonia". Phyllomedusa 6 (1): 11–21.