FIGURE 3 in Systematics of north African Agama (Reptilia: Agamidae): a new species from the central Saharan mountains

FIGURE 3. Variation in Agama tassiliensis n. sp. from Tassili n'Ajjer and Acacus Mountains. A: PGe.921, adult male in breeding colouration, Algeria, Tassili n'Ajjer, surroundings of Tamarit near Djanet, photo G. Vigo. Note the broad (3–4 scales wide), bright red vertebral stripe (can be orange to red in other specimens), a coulour never encountered in the other members of the A. impalearis group. In A. agama the crest area can be orange but this colour does not extend onto the back. B: PGe.991, gravid adult female, Algeria, Tassili n'Ajjer at 24.5847°N/9.3235°E, photo G. Vigo. Note that the colours are typical of gravid females of the A. impalearis group, and very different from those of the A. agama group (cf. Fig. 6). C: PGe.999, juvenile, Libya, ca 100km N. of Ghat, Wadi Maghidet, photo G. Vigo. D: Habitat of Agama tassiliensis n. sp., Algeria, Tassili N'Ajjer, 5.5km downstream of Issendelene, photo P. Geniez.