82 LACERTIDE. 
b. Lower eyelid with a semitransparent disk formed of 
several small scales; dorsal scales perfectly smooth. 
Frontonasal shield separated from the 
POSUIAL T aciaenswaceaetoe We a acete eb weal 14. burchelliz, p. 95. 
Frontonasal in contact with the rostral.. 15. capensis, p. 96. 
II. Ventral plates forming very irregular or oblique longitudinal 
series, converging posteriorly ; occipital absent; lower nasal 
forming a suture with the two or three anterior labials. 
A. Not more than 30 gular scales ona line extending from the 
collar to the suture between the chin-shields. 
1. 15 to 25 femoral pores on each side; subocular bordering 
the lip. 
The length of the foot in the adult less 
than the distance between the collar- 
fold and the nostril; 50 to 65 scales 
(counting from the ventrals) across 
the middle of the body ............ 16. velow, p. 97. 
The length of the foot equals the distance 
between the collar-fold and the nostril 
or the end of the snout; 45 to 50 
scales across the middle of the body.. 17. fasciata, p. 99. 
2. 8 to 15 femoral pores on each side. 
a. The distance between the loreal and the anterior supra- 
ocular is less than the length of the latter shield. 
Nasals swollen ...... 0.0... cee enue 18. intermedia, p. 100. 
Nasals not swollen...............00. 21. multiocellata, p. 103. 
b. The distance between the loreal and the anterior supra- 
ocular equals or exceeds the length of the latter shield. 
Ventral plates 16 to 20 in the longest 
transverse series ....... Sea decdaetee 19. arguta, p. 101. 
Ventral plates 12 or 14 in the longest 
transverse series ; frontonasal divided. 20. argus, p. 102. 
B. More than 30 gular scales between the collar and the suture 
between the chin-shields. 
Supraoculars in contact with the frontal ; 
four prefrontals ; ventral plates 14 
or 16 in the longest transverse series ; 
13 femoral pores on each side ...... 22. quadrifrons, p. 105. 
Supraoculars in contact with the frontal ; 
two prefrontals; ventral plates 16 to 
20 in the longest transverse series ; 11 
to 17 femoral pores .............. 23. przewalskiz, p. 105. 
