19. AGAMA. 351 



vertebral line by a X-sh3.ped whitish marking; lower surfaces 

 whitish, with wide-meshed blackish network. 



Total length 134 millim. 



Head 19 „ 



Width of head 20 „ 



Body 52 „ 



Pore limb 38 „ 



Hind limb . 51 „ 



Tail 63 „ 



South Africa. 



a. 2 ' Cape of Good Hope. Sir A. Smith [P.]- 



18. Agama aculeata. 



Agaraa aculeata, Gray, Cat. p. 257. 

 Agama aculeata, Me7-r. Tent. p. 53 ; Dum. (^ Bibr. iv. p. 499. 

 Trapelus (Psammorrhoa) bibronii, Fitzing. Syst. Rept. p. 81. 

 Agama hispida, part., Peters, Man. Berl. Ac. 1870, p. 112, 



Head short, convex, subcordiform. Nostril slightly tubular, 

 pierced on the canthus rostralis or just below, in a convex nasal. 

 Upper head-scales smooth or feebly keeled ; forehead slightly con- 

 vex ; occipital enlarged ; sides of head posteriorly and neck with 

 spinose scales ; ear-opening larger than the eye-opening. Male 

 without a regular gular pouch. Body depressed, covered with 

 moderately large, imbricate, strongly keeled scales intermixed with 

 strongly enlarged ones ; a feeble but very distinct dorsal and nuchal 

 crest ; ventral scales perfectly smooth. Limbs moderate ; tibia as 

 long as the skull (to occiput) ; third finger very slightly longer than 

 fourth ; fourth toe slightly longer than third, fifth extending as far 

 as first. Tail nearly twice as long as the distance from gular fold 

 to vent, rounded in the female, a little compressed in the male, 

 covered with strongly keeled scales. Male with a row of praeanal 

 pores. Yellowish or olive-brovm above, with a double series of 

 large brown spots on the back ; lower surfaces whitish, the throat 

 with longitudinal brown lines in the female, blackish blue in the 

 breeding male. 



Total length 252 millim. 



Head 24 „ 



Width of head 23 „ 



Body 81 „ 



Fore limb 48 „ 



Hind limb 69 „ 



Tail 147 „ 



South Africa. 



a. S • S. Africa. 



h-d. 2 & hgr. Damara Land. 



e-f.2. ? 



g. Skeleton. S. Africa. Sir A. Smith [P.]. 



