ITIS unterscheidet nur 8 Arten, Mallow et al. führen 12 Arten auf
kingsnake.com
Lenk, P., S. Kalayabina, M. Wink & U. Joger: Evolutionary relationships among the true vipers (Reptilia: Viperidae) inferred from mitochondrial DNA sequences. In: Molecular Phylogenetics and Evolution. 19, 2001, S. 94–104 (Volltext-PDF; 139,5 kB).
mapress.com
Michele Menegon, Tim R.B. Davenport, Kim M. Howell: Description of a new and critically endangered species of Atheris (Serpentes: Viperidae) from the Southern Highlands of Tanzania, with an overview of the country’s tree viper fauna. In: Zootaxa. 3120, 2011; S. 43–54 (Abstract PDF; 19 kB).