194 
Annals of the Transvaal Museum. 
AG AM A. 
Key to the Species occurring in South Africa. 
1. Dorsal scales equal ... ... ... ...S 
Dorsal scales unequal, i.e. mixed with scattered enlarged 
scales 
No dorsal crest 
A dorsal crest 
...6 
...3 
3. Dorsal scales smooth, not mucronate ... 
Dorsal scales keeled ... ... ... ...4 
4. 120-160 scales around the middle of the body ... 
60-80 scales around the middle of the body, an enlarged 
scale on the snout 
5. Ventrals smooth 
Ventrals keeled 
6. Occipital enlarged, or males with a single row of praeanal 
pores... ... ... ... ... ...7 
Occipital not enlarged, males with a double row of praeanal 
pores... 
Agama planiceps (p. 184). 
Agama atra (p. 192). 
Agama colonorum (p. 184). 
Agama hirhi (p. 185). 
Agama mossambica (p. 185). 
Agama atricollis (p. 186). 
Agama anchietai (p. 187). 
Agama brachynra (p. 188). 
Agama hispida (p. 188). 
A vertebral stripe, ventrals usually weakly keeled or 
smooth ... ... ... Agama hispida, var. distanti (p. 189). 
7. Fifth toe not extending as far as the first 
Fifth toe extending as far as or beyond the first 
8. No spines on the anterior or inferior border of the ear 
Spines on the anterior and inferior border of the ear 
9. Third and fourth toes sub-equal 
Third toe distinctly longest ... 
10. No vertebral stripe, ventrals strongly keeled ... 
...8 
...11 
...9 
...10 
11. Ventral scales keeled 
Ventral scales smooth 
12. Nostril pierced just below the canthus rostralis, back of 
head with scattered short spine 
keeled and mucronate ... 
Nostril pierced on the canthus rostralis 
groups of prismatic enlarged spines, ventral keels 
more or less effaced 
...12 
...13 
ventrals strongly 
back of head with 
13. 
14. 
A feeble but distinct dorsal and nuchal crest 
No dorsal crest (nuchal crest present) 
...14 
Upper head scales smooth or feebly keeled 
Upper head scales smooth and flat, intermixed with 
pointed conical scales ... 
Agama armata (p. 190). 
Agama pulcliella (p. 191). 
Agama aculeata (p. 191). 
Agama atra (p. 192). 
Agama holubi (p. 193). 
