Reference

Philipp Wagner, Ivan Ineich, Adam D. Leaché, Thomas M. Wilms, Sébastien Trape, Wolfgang Böhme, Andreas Schmitz (2009): Studies on African Agama VI. - Taxonomic status of the West African Agama (Sauria: Agamidae) with prominent tail crests: Agama boulengeri Lataste 1886, Agama insularis Chabanaud, 1918 and Agama cristata Mocquard, 1905 – Bonn zoological Bulletin - früher Bonner Zoologische Beiträge. – 56: 239 - 253.