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            Barlow A, Wüster W, Kelly CMR, Branch WR, Phelps T, Tolley KA. 2019. Ancient habitat shifts and organismal diversification are decoupled in the African viper genus Bitis (Serpentes: Viperidae). J Biogeogr. 46: 1234– 1248  - get paper hereBates, M.F.; Branch, W.R., Bauer, A.M.; Burger, M., Marais, J.; Alexander, G.J. & de Villliers, M.S. (eds.) 2014. Atlas and Red List of the Reptiles of South Africa, Lesotho, and Swaziland. Suricata 1. South African National Biodiversity Institute, Pretoria, 512 pp. Bauer, A.M., and Branch, W.R. 2003. The herpetofauna of the Richtersveld National Park, Northern Cape Province, Republic of South Africa. Herpetological Natural History 8: 111-160 [2001] Branch, William R. 1993. A Photographic Guide to Snakes and Other Reptiles of Southern Africa. Cape Town: Struik Publishers, 144 S. Dobiey, M. & Vogel, G. 2007. Venomous Snakes of Africa - Giftschlangen Afrikas. Edition Chimaira, Terralog 15, 150 pp.  - get paper hereFleck,J. 1999. Bemerkungen zur Wüstenbergotter Bitis xeropaga HAACKE 1975 sowie Beobachtungen bei der Haltung und Zucht. Herpetofauna 21 (122): 5-9  - get paper hereHaacke, W.D. 1975. Description of a new adder (Viperidae, Reptilia) from Southern Africa, with a discussion of related forms. Cimbebasia (A) 4: 115-128 Herrmann, H.-W.; W.R. Branch 2013. Fifty years of herpetological research in the Namib Desert and Namibia with an updated and annotated species checklist. Journal of Arid Environments 93: 94–115  - get paper hereLenk,P.; Herrmann,H. W.; Joger,U. & Wink,M. 1999. Phylogeny and taxonomic subdivision of Bitis (Reptilia: Viperidae) based on molecular evidence. Kaupia (Darmstadt) (8): 31-38  - get paper hereMallow, D. Ludwig, D. & Nilson, G. 2003. True Vipers: Natural History and Toxinology of Old World Vipers. Krieger, Malabar, Florida, 410 pp. [review in HR 35: 200, Reptilia 35: 74] Martínez del Mármol, G. 2020. The phenotypic variability of the Genus Bitis Gray 1842, with remarks in its resemblance to other vipers. In: Martínez, G., León, R., Jiménez-Robles, O., González De la Vega, J. P., Gabari, V., Rebollo, B., Sánchez-Tójar, A., Fernández-Cardenete, J. R., Gállego, J. (Eds.). Amphibians and Reptiles of Morocco and Western Sahara  - get paper hereMcDiarmid, R.W.; Campbell, J.A. & Touré,T.A. 1999. Snake species of the world. Vol. 1. [type catalogue] Herpetologists’ League, 511 pp. Phelps, T. 2010. Old World Vipers. Edition Chimaira, Frankfurt, 558 pp. [critical review in Sauria 33 (3): 19 and HR 43: 503] Sattler, U. 1998. Nachzucht von Bitis xeropaga (HAACKE 1975). Elaphe 6 (4): 24 Schleicher, Alfred 2015. Reptilien Namibias. Namibia Scientific  Society, 276 pp. Schleicher, Alfred 2020. Reptiles of Namibia. Kuiseb Publishers, Windhoek, Namibia, 271 pp. Spawls, S., Branch, B. 2020. The Dangerous Snakes of Africa. Bloomsbury, London, 336 pp.  - get paper hereTolley, K.A., Conradie, W., Pietersen, D.W., Weeber, J., Burger, M. & Alexander, G.J. (eds) 2023. Conservation status of the reptiles of South Africa, Eswatini and Lesotho. Suricata 10. South African National Biodiversity Institute, Pretoria Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. [type catalogue] Taylor and Francis, CRC Press, 1237 pp. Wittenberg, Rod D. & Robert C. Jadin & Allyson M. Fenwick & Ronald L. Gutberlet Jr. 2014. Recovering the evolutionary history of Africa’s most diverse viper genus: morphological and molecular phylogeny of Bitis (Reptilia: Squamata: Viperidae). Org Divers Evol, DOI 10.1007/s13127-014-0185-3  |