350 



head-scales unequal, rough, keeled, or subcorneal ; forehead convex, 

 with enlarged subconical scales ; occipital enlarged ; back of head 

 with large conical spinose scales ; ear-opening smaU, not quite as 

 large as the eye-opening. Male without a regular gular pouch. 

 Body depressed, covered with moderately large, imbricate, strongly 

 keeled scales intermixed with strongly enlarged, spinose, raised ones ; 

 a well-marked dorsal and nuchal crest ; ventral scales more or less 

 strongly keeled and mucronate. Limbs moderate ; tibia as long as 

 the skull (to occiput) ; fingers short, third longest ; toes short, third 

 longer than fourth, fifth not extending as far as first. Tail once 

 and one fourth to once and a half as long as the distance from gular 

 fold to vent, rounded, covered with strongly keeled scales, the basal 

 portion intermixed with enlarged spinose scales. Males with a row 

 of anal pores. Brown or olive, spotted with darker ; lower surfaces 

 dirty white, in the young with wide-meshed grey reticulation; throat 

 of the breeding male blue. 



Total length 187 mlUim. 



Head 23 



Width of head 24 



Body 67 



Fore limb 49 



Hind limb 62 



Tail 97 



South Africa. 



a, b, c, d, e,f. 

 Ad., stuffed. 



g. cf. 

 h. ?. 



i. 6- 



I, m, n-o. Hgr. & 



Jg- 

 p. S. 



Cape of Good Hope. 



Cape of Good Hope. 

 Cape of Good Hope. 

 Cape of Good Hope. 

 Cape of Good Hope. 

 Cape of Good Hope. 



Africa. 



Prof Busk [P.]. 



Sir E. Belcher [P.]. 



Dr. Lea [P.]. 



— Towuaend, Esq. [P.]. 



17. Agama bracliytira. (Plate XXVIII. fig. 1.) 



Head short, convex, subcordiform. Nostril not tubular, lateral, 

 pierced just below the canthus rostralis in a convex nasal. Upper 

 head-scales smooth ; forehead convex ; occipital enlarged ; sides of 

 head posteriorly and neck with small spines ; ear-opening a little 

 smaller than the eye-opening. Body depressed, covered with 

 moderately large imbricate strongly keeled scales intermixed with 

 strongly enlarged spinose ones ; ventral scales smooth. Limbs 

 moderate ; tibia as long as the skull (to occiput) ; fingers short, 

 third longest ; fourth toe very slightly longer than third, fifth not 

 extending as far as first. Tail shorter than head and body, a little 

 longer than the distance from gular fold to vent, rounded, covered 

 with strongly keeled scales. Olive-brown above, with a double 

 series of large dark spots on the back, each pair separated on the 



