<i>Cerastes gasperettii</i> (hornless).
Zuhair Amr
CC BY 3.0
Stümpel N, Joger U (2009) Recent advances in phylogeny and taxonomy of Near and Middle Eastern Vipers – an update. In: Neubert E, Amr Z, Taiti S, Gümüs B (Eds) Animal Biodiversity in the Middle East. Proceedings of the first Middle Eastern Biodiversity Congress, Aqaba, Jordan, 20–23 October 2008. ZooKeys 31: 179–191. <a href="https://en.wikipedia.org/wiki/Digital_object_identifier" class="extiw" title="w:Digital object identifier">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.3897%2Fzookeys.31.138">10.3897/zookeys.31.138</a>