410 AGAMID-ffi. 



Total length 420 millim. 



Head 43 „ 



Width of head 40 „ 



Body 197 „ 



Fore limb 82 „ 



Hind limb 116 „ 



Tail 180 „ 



Is said to reach a larger size than the preceding. 

 Persia. 



a. 2 . Bushire. P. L. Sclater, Esq. [P.]. (Type.) 



b, c. Hgr. & yg. Ghorak. 



29. APOROSCELIS. 



Tympanum distinct. Incisors large, uniting in the adult, separated 

 from the molars by a toothless interspace. Body depressed, without 

 crest. No gular pouch ; a transverse gular fold. Tail very short, 

 much depressed, covered above with series of large spines. Prseanal 

 and femoral pores absent ; males with callose praeanal scales. 



East Africa. 



1. Aporos cells princeps. 



Uromastix princeps, O'Shauffkn. Proc. Zool. Soc. 1880, p. 445, pi. xliii.; 

 Vaillant, Miss. E^voil, Kept. p. 9. 



Head thick, moderately large, with the cheeks strongly swollen ; 

 snout very short, without canthus rostralis ; nostril large, directed 

 slightly backwards ; ear-opening a long vertical slit ; upper head- 

 scales smooth, irregular, largest on the snout ; two enlarged scales 

 between the nostril and the orbit ; a row of enlarged infraorbitals ; 

 labials very small. Body covered above with juxtaposed, flat, smooth 

 uniform granules ; ventral scales larger, smooth, subquadrangular, 

 slightly imbricate, arranged in transverse series. Limbs rather 

 short ; hind limb reaching the axil ; digits short ; scales smooth, 

 enlarged on the upper and anterior face of the thighs and on the 

 tibial side of the leg ; a few enlarged conical tubercles near the 

 knee. Tail much flattened, not quite half the length of head and 

 body, nearly as broad as the trunk, subelliptical in shape ; its upper 

 surface covered with enormous spines arranged in six longitudinal 

 and eleven transverse series, those of the outer series the largest and 

 hooked ; on the lower surface the scales are small, arranged in 

 regular transverse series, two of which correspond to one on the 

 upper surface. Olive-grey ; tail and upper surface of thighs 

 reddish-brown. 



Total length 187 millim. 



Head 30 „ 



Width of head 29 „ 



Body 96 „ 



