The
type locality given is "Dreigratberg on north bank of Orange River,
Lüderitz district, South West Africa [Namibia] (16°52' E, 28°05' S, alt. about 300 m [980 ft])".[2]
^
abcMcDiarmid RW,
Campbell JA, Touré T. 1999. Snake Species of the World: A Taxonomic and Geographic Reference, Volume 1. Washington, District of Columbia: Herpetologists' League. 511 pp.
ISBN1-893777-00-6 (series).
ISBN1-893777-01-4 (volume).
^
abMallow D, Ludwig D, Nilson G. 2003. True Vipers: Natural History and Toxinology of Old World Vipers. Malabar, Florida: Krieger Publishing Company. 359 pp.
ISBN0-89464-877-2.
^
abSpawls S,
Branch B. 1995. The Dangerous Snakes of Africa. Dubai: Ralph Curtis Books. Oriental Press. 192 pp.
ISBN0-88359-029-8.
^Mehrtens JM. 1987. Living Snakes of the World in Color. New York: Sterling Publishers. 480 pp.
ISBN0-8069-6460-X.
Branch, Bill. 2004. Field Guide to Snakes and Other Reptiles of Southern Africa. Third Revised edition, Second impression. Sanibel Island, Florida: Ralph Curtis Books. 399 pp.
ISBN0-88359-042-5. (Bitis xeropaga, p. 117 + Plate 13).
Haacke WD. "Description of a new adder (Viperidae, Reptilia) from Southern Africa, with a discussion of related forms." Cimbebasia, Series A4 (5): 115–128. (Bitis xeropaga, new species).