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Branch, W.R., Baptista, N., Keates, C. and Edwards, S. 2019.

Rediscovery, taxonomic status, and phylogenetic relationships of two rare and endemic snakes (Serpentes: Psammophiinae) from the southwestern Angolan plateau

. Zootaxa. 4590, 3 (Apr. 2019), 342–366. DOI:https://doi.org/10.11646/zootaxa.4590.3.2.