14. EREMIAB. 81 



Ventrals in 8 series ; dorsal scales smooth 5. pardaloides, p. 87. 

 Ventrals in I series ; scales on upper 



surface of tibia not larger than dorsals. 6. guttulata, p. 87. 

 Yentrals in 10 series ; scales on upper 



surface of tibia much larger than 



dorsals, imbricate, strongly keeled.. 11. rmf?o<rt, p. 92. 



2. Supraoculars entirely surrounded by granules; ventral 

 plates in 6 longitudinal series. 



Lower nasal undivided, normal ; upper 



head-shields strongly striated 2. speMi, p. 84. 



Lower nasal undivided ; upper head- 

 shields not striated ; scales on upper 

 surface of tibia not larger than dorsals 3. luguhris, p. 84. 



Lower nasal divided, the nostril being 

 pierced between four shields ; scales 

 on upper surface of tibia much larger 

 than dorsals 4. brenneri, p. 86. 



B. Ventrals in 12 to 16 series. 



1. The distance between the lorcal and the first of the two 



largest supraoculars is less than the length of the latter 

 shield. 



Frontonasal separated from the rostral 



by the nasals ; ventral plates of the 



two median series as large as the 



others '. 7. brevirostris, p. 89. 



Frontonasal in contact with the rostral ; 



occipital present ; subocular bordering 



the lip 8. rubropunctata, p. 89. 



Frontonasal in contact with the rostral; 



no occipital ; subocular not reaching 



the lip 9, suborbitalis, p. 90. 



Frontonasal separated from the rostral ; 



ventral plates of the two median series 



smaller than the others 10. namaquensis, p. 91. 



2. The distance between the loreal and the first supraocular 



equals or exceeds the length of the latter shield. 



a. Lower eyelid with a large transparent disk formed of 

 two scales. 



Scales on upper surface of tibia much 



larger than dorsals ; latter keeled only 



on the hinder half of the body 12. ])iilcliella, p. 93. 



Scales on upper surface of tibia not, or 



but slightly larger than the posterior 



dorsals ; latter keeled from between 



the shoulders 13. lineo-oceUata, p. 94. 



VOL. III. G 



