228 Lacertidie. 



Upper head-shields finely striated ; subocular not reaching the 



mouth ; 20 to 24 femoral pores on each side . 9. S. brenneri, Peters, p. 254. 



Section IH. T^nieremias, Blgr. — Three nasals, the lower and the posterior 



resting on the first upper labial; ventral plates in 10 straight longitudinal 



series ; no occipital ; toes feebly compressed, with triearinate lamellae inferiorly. 



— "West Africa. 



60 smooth scales across middle of body ; 21 femoral pores on 



each side . . . . 10. E. quineensis, Blgr., p. 256. 



Section IV. Mesalina, Gray. — Three nasals, the lower in contact with the 

 rostral and the first (very rarely first and second) upper labial ; ventral plates 

 in 10 to 18 (exceptionally 8) straight longitudinal series, rarely irregular 

 or tessellated ; occipital usually present ; toes feebly compressed, with bi- or 

 triearinate lamellae inferiorly. — Africa and S.W. Asia. 



A. North African and Asian species. Collar curved or angular, sometimes 



distinct on the sides only. 



1. Nasals in contact behind the rostral ; 32 to 62 scales across middle 



of body ; 9 to 17 femoral pores on each side. 



Head and body rather strongly depressed, limbs moderately 

 slender; head 1-f- to If times as long as broad; occipital 

 present, nearly always in contact with tlie interparietal 

 or separated from it by a small shield; ventral plates in 

 10 (rarely 8) longitudinal series ; scales on upper surface 

 of tibia keeled ... 11. E. gutiulata, Licht., p. 258. 



Head and body strongly depressed, limbs very slender ; head 

 I5 times as long as broad ; occipital absent or minute and 

 not in contact with interparietal ; ventral plates in 10 

 longitudinal series ; scales on upper surface of tibia smooth 

 or obtusely keeled . . 12. E. adramitana, Blgr., p. 271. 



Habit rather stout; head not strongly depressed, 1-i to 

 1^ times as long as broad; occipital absent or minute 

 and not in contact with interparietal; ventral plates in 

 12 (rarely 10) longitudinal series ; scales on upper surface 

 of tibia smooth or obtusely keeled . 13. E. brevirostns, Blanf., p. 273. 



2. Eostral often in contact with frontonasal; 53 to 67 



scales across middle of body ; occipital present ; ven- 

 tral plates in ] 2 (rarely 10 or 14) longitudinal series ; 

 13 to 22 femoral pores on each side. 



14. E. rubropunctata, Licht., p. 276. 



B. South African species. Collar straight and perfectly free. 



1. A narrow tympanic shield ; ventral plates in 10 or 12 longitudinal 

 series; i to f of the lateral border of the frontal in contact 

 with the two large supraocvilars ; nasals in contact behind the 

 rostral. 

 Lower eyelid semi-transparent, with 10 to 12 enlarged scales 

 in the middle, one of which may be much larger than the 

 others; 47 to 65 scales across middle of body; ventral plates 

 in 12 (rarely 10) longitudinal and 28 to 33 transverse series. 



15. E. iiamaquensis, D. & B., p. 280. 



