South A frican Agamaf^ allied to Agama liispida and A.\ atra. 253 
disposed in 3 more or' less regular longitudinal series on each side of the back ; 
75 to 100 scales round the middle of the body ; groups of sj^inose scales on 
the side of the neck and near the ear-opening, the largest much shorter than 
the diameter of tlie latter ; a low but verv distinct dorsal crest, usually 
continued on the anterior part of the tail. Upper liead-scales unequal, smooth 
or feebly keeled, one or two transverse series on the occiput more or less 
enlarged and subconical ; occipital enlarged, not or but feebly pitted ; 10 to 15 
scales across the head from one superciliary series to the other; 10 to 15 
upper labials on each side ; 2 to 4 series of scales between the upper labials 
and the nasal. Grular and ventral scales smooth or feebly keeled, not or but 
slightly mucronate. Upper scale, at base of claw, not or but slightly longer 
than the others ; 15 to 20 scales in a longitudinal series under the third or 
fourth toe. Caudal scales strongly keeled and mucronate, not foi*ming whorls, 
more or less unequal in size. Scales on upper surface of til)ia usually equal 
in size. 
Male with a single row of rather small preanal pores. 
Coloration.- — Pale l)rown, light yellow, yellowisli brown, dark brown or 
greyish above, uniform, or with dark brown or blackish spots (4 on either 
side of the vertebral line), or wavy cross-bars (2 on the nape, 4 on the back), 
sometimes with a series of large light spaces between the dark ones on the 
vertebral line, and a ( ) -sliaped light mark on the nape, or w^ith a light verte- 
bral stripe, with a wavy lateral one at either side, sometimes with two dark 
cross-bars on the head, between the eyes, or with a V-sbaped light mark 
between the eyes and a light bar across the forehead in front of the eyes ; 
sides and top (just over occiput) of head, in males, sometimes blue-green or 
blackish, limbs and tail with more or less distinct dark cross-bars. Females 
sometimes exhibit larger blood-red blotches at either side of the vertebral line. 
Lower parts white, throat often with bluish or blackish wavy longitudinal 
lines, in males with a central blackish blotch or even entirely black, belly 
sometimes with traces of a dark network or of wavy longitudinal lines. 
Neck, chest and sides brick red in breeding males. 
Particulars of Specimens Examined. 
British Museum : 
S. Africa $ . 
Deelfontein $ 
Ladysmith S 
? . . 
Okwa, Bechuanaland S 
s 
1. 
2. 
3. 
4. 
5. 
6. 
7. 
8. 
9. 
105 
148 
24 
68 
24 
27 
4-5 
4 
4th 
69 
86 
17 
50 
17 
18 
3-5 
3 
4th 
75 
100 
20 
52 
17 
20 
4 
3-5 
3rd 
59 
74 
16 
43 
15 
17 
3-5 
3-5 
3rd 
83 
? 
21 
52 
18 
19 
4 
4 
3rd 
80 
105 
21 
55 
19 
21 
45 
4 
4th 
73 
98 
18 
49 
17 
19 
4 
3-5 
3rd & 4th 
61 
80 
16 
40 
13 
16 
3 
2-5 
3rd & 4th 
