340, AGAMID^. 



Total length 223 miUim. 



Head 2-i „ 



Width of head 21 „ 



Body 64 „ 



Pore limb 50 „ 



Hind limb 77 „ 



Tail 135 „ 



North Arabia ; Syria. 



a-h. $ & hgr. Mount Sinai. 



c. (S • Sinaitic Peninsula. H. C. Hart, Esq. [C.]. 



d. <S . Dead Sea. Canon Tristram [C.]. 



3. Agama hartmanni. 

 Agama hartmanni, Peters, Mon. Berl. Ac. 1 869, p. 65. 



General proportions and scaling as in A. ay'dis and isolepis, 

 i. e. with equal keeled dorsal scales and moderately long limbs. 

 The tympanum much larger, entirely exposed. Third and fourth 

 toes nearly equal in length. Ventral scales quite smooth. Olive- 

 brown above, with a yellow vertebral line from occiput to base of 

 tail, irregular small dark-brown spots on the back, and on each of 

 the sides two rather indistinct rows of large yellow, black-edged 

 spots ; lower surfaces ochraceous. 



Dongola. 



4. Agama tournevillii. 



Agama toumevillei, Lataste, Le Naturaliste, 1880, p. 325. 



Habit rather slender. Head oval, snout sloping gradually. 

 Nostril not tubular, directed upwards and backwards, pierced on the 

 canthus rostralis in the posterior part of a small flat nasal. Upper 

 head-scales convex ; occipital not enlarged ; no spinose scales ; a 

 very slight fringe of pointed scales on the upper border of the ear, 

 which is smaller than the eye-opening : male with a large gular 

 pouch. Body round, not at all depressed, covered above with rhom- 

 boidal, imbricate, strongly keeled, not mucronate scales ; lateral 

 and ventral scales a little smaller, strongly keeled. Limbs rather 

 slender : tibia a little shorter than the skuU (to occiput) ; third 

 finger slightly shorter than fourth, fifth not extending as far as 

 second ; third toe much shorter than fourth, fifth not extending 

 quite as far as first. Tail twice and a half as long as the distance 

 from gular fold to vent, distinctly compressed, covered with keeled 

 scales. Male with a row of anal pores. Sandy-coloured above ; a 

 transverse brown band between the eyes, two longitudinal ones 

 from the occiput along the nape, and two others on each side of the 

 head ; back with regular longitudinal series of quadrangular trans- 

 verse brown spots separated by rather indistinct longitudinal light 

 lines ; these spots form annuli on the tail ; lower surfaces whitish ; 

 the gular pouch grey. 



