19. AGAMA. 



359 



the vertebral region ; a slight nuchal denticulation ; a more or less 

 marked curved fold from the neck to the middle of the side ; 

 ventral scales smooth. Limbs moderately elongate, with compressed 

 digits ; the scales on the upper surface of the limbs irregular in size, 

 keeled ; third and fourth fingers nearly equal ; fourth toe very 

 slightly longer than third, fifth extending beyond first. Tail 

 very slightly compressed, about twice as long as the distance from 

 gular fold to vent ; the scales strongly keeled, and forming rather 

 regular annuli, those on the upper surface much enlarged, with 

 denticulated edge. Male with a double row of anal pores. Olive 

 or brown above, marbled or reticulated with blackish ; young with 

 X^-shaped black markings across the back ; a large black spot in 

 front of the shoulder ; lower surfaces lighter ; throat with dark 

 network, blue in the male. 



Total length . . 360 millim. Fore limb 



Head 38 „ Hind limb 



Width of head 37 „ Tail 



Body 102 „ 



South Africa. 



70 millim. 

 95 „ 

 220 „ 



o-c. d, $,&hgr. 

 d-e. d 2 ■ 



f, 5-- ? & yg- 



h. S- 

 i. 6. 



k. e- . 

 I. ?. 



Natal. 



Natal. 



Natal. 



Lamo. 



S.E. Africa. 



Duque de Bragance, 



Angola. 

 S. Africa. 



Sir A. Smith 

 J . Ayres, Esq. 



[P.]. 



rc.]. 



(Types.) 



Sir J.KirkfP.I. 

 Sir J. Kirk [P.]. 

 Prof. B. du Bocage [P.]. 



J. H. Gumey, Esq. [P.]. 



29. Agama cyanogaster. 



Stellio cyanogaster, Gray^ Cat. p. 255. 

 ? Agama gularis, Reuss, Mus. Senck. p. 36. 

 Stellio cyanogaster, Rupp. N. Wirbelth. Faun. Abyss., Rept. p. 10, 



pi. V. ; Dum. ^ Bib?: iv. p. 532. 

 Acanthocercus cyanogaster, Fitzing. Syst. Rept. p. 84. 

 Agama (Stellio) cyanogaster, Blanf. Zool. Abyss, p. 446. 



Head moderately depressed; nostril lateral, not tubular, below 

 the canthus rostralis ; upper head-scales smooth ; occipital not 

 enlarged ; small conical spinose scales on the sides of the head 

 near the ear ; latter exposed, larger than the eye-opening ; throat 

 strongly plicate, no gular pouch. Body depressed, with a distinct 

 fold on each side of the back ; dorsal scales rather large, irregular, 

 feebly keeled on the vertebral region, minute and intermixed with 

 enlarged ones on the sides ; a series of small spinose scales on the 

 dorsal folds ; ventral scales smooth, smaller than the largest dorsals. 

 Limbs moderately elongate, with compressed digits ; the scales on 

 the upper surface of the limbs irregular in size, keeled ; fourth 

 finger very slightly longer than third ; fourth toe very slightly 

 longer than third, fifth extending beyond first. Tail round, nearly 



