South A frican Agamas allied to Acjama In'spida anul A. afra. 249 
The following- oliservations are a result of tlie stndv of the whole 
material. 
First with reference to the collection in the British Museum : 
The leng'th of the head may be 4i times that of the head and body ; 
the tibia may equal or even slightly exceed the length of the head ; the 
third and fourth toes are exceptionally equal ; the fifth toe may extend as 
far as the first (two males from Barberton, two from Vredefort Eoad and 
two from Buhuvayo, two females from Bulawayo, all the specimens from 
Mazoe) ; the tail may be I times as long as the head and body. Ventral 
scales feebly but very distinctly keeled and mucronate in a female from 
Vredefort Road, also in a male and female from Bulawayo. Two series of 
preanal pores ; up to 19 scales under the third toe in a male from Bulawayo 
and in another from Mazoe. 
The collections in the museums of South Africa : 
The enlarged dorsal scaling as in typical specimens of A. aculeata 
(Pienaar's River, Selati River, Metlepetsi River). 
Fifth toe extending as far as the first (Pienaar's River, Towani, Pretoria, 
Witpoort, Kaalplaats, Waterberg, Zand River, Metlepetsi River). 
Head broader than long (Pretoria). 
Toes slender (Pretoria, Witpoort, Kaalplaats, Selati Rivei-, Zand River, 
Metlepetsi River). 
Head longer than broad (Pretoria, Rosslyn, Magaliesberg^. 
Two cases were noted where the preanal pores were in two rows. 
The following combinations of cliaracters were noticed in individual 
specimens : 
1. Otto's Hoop 9 • Dorsal scaling exceptionally rough and mucronate 
throughout ; enlarged spinose scales on the sides of the head and neck ; 
ventrals smooth. 
2. Thabanchu ^ . Ventrals smooth ; enlarged dorsals not in longitudinal 
series ; head- scales as in A. aculeata from Kimberley. 
3. Baralong Farms 9 • Ventrals slightly keeled on the chest and 
abdomen ; dorsal scaling as in A. aculeata, by no means very rough ; tail 
very compressed laterally, not crested. 
4. Pienaar's River 3 9 . The fifth toe extending as far as the 
first. 
5. Pretoria $ . Head-scales very strongly keeled, subcorneal on either 
side of the occiput ; enlarged dorsal scales arranged in two longitudinal 
series about the centre of each side, those in the centre of the back arranged 
in 4 clusters round 4 lighter spots ; smaller dorsals strongly keeled l)ut not 
mucronate. 
6. Vygeboompoort ^ . Third toe slightly longer than the fourth on the 
right foot, same toes equal on the left foot. Two similar cases of this are 
noticed, Several specimens from this locality are most difficult to place. 
