Annals of the Transvaal Museum. 
81 
Dorsal scales all equal. 
Snout usually very short, hardly as long as diameter of orbit ; naso- 
rostrals usually in contact ; three subdigital lamellae ; caudal scales three 
or four times as large as the granules of the back. Dorsally grey, with 
reddish-brown blackish-margined markings as follows : a spot on the nose 
and another on the forehead, a semicircular broad bar round the back 
of the head from eye to eye, and posteriorly directed angular broad bars 
on the back and tail. P. mariquensis Smith. 
Snout very short ; naso-rostrals usually separated ; four to five sub- 
digital lamellae ; caudal scales about twice as large as granules on the 
back. Grey or brown above, with small white dark-edged ocelli ; a straight 
dark streak on the side of the head and neck, passing through the eye. 
P. ocellatus Cuv. 
Very like ocellatus, but differing in that the snout is longer and more 
pointed ; the scales on the snout are three or four times as large as those 
on the back of head (scales of head and body subequal throughout in 
ocellatus and mariquensis). Brown above, spotted with blackish-brown ; 
behind the eye a yellow band, blackish-edged above. P. punctatus Pet. 
9. Colopus. 
Nostril between three nasals, the anterior largest ; dorsal scales 
uniformly granular ; tips of fingers slightly dilated, of toes rather narrowed. 
Olive-green above, with large yellow darker-edged spots confluent into 
irregular crossbands on the back ; a yellow median streak from snout 
to occiput. C. wahlbergi Pet. 
10. Khoptropus. 
No chin shields; ear -opening horizontal; mental and contiguous 
labials much elongated ; ten or eleven upper and eight or nine lower 
labials ; nostril in the centre of a swelling formed by three or four nasals. 
Yellowish or greenish-olive above, uniform, or with small scattered dark 
spots. R. afer Pet. 
Mental large, sub triangular, broader than long, in contact with two 
chin shields ; nostril between the first labial and two nasals, the latter 
not swollen ; ear opening oblique ; seven upper and six lower labials. 
Grey above, with round, dark-edged whitish spots ; a rather indistinct 
dark line on each side of the head, passing through the eye. 
R. ocellatus Boul. 
Three chin shields ; seven upper and eight lower labials. Olive-green 
above, marbled with blackish ; three small transverse black spots near 
the insertion of the thighs ; limbs with reddish-brown chevron-shaped 
bands, the tail annulate with black. * R. braconnieri Thom. 
11. Elasmodactylus. 
Nostril between rostral, first labial, and three other small scales ; 
thirteen subdigital lamellae on median toe of hind foot ; terminal joint 
of toes superiorly with two enlarged scales, which protect the pouch of 
the very minute claws. Grey above, with traces of black spots, some of 
the larger tubercles being black; traces of transverse bands on the tail. 
E. namaquensis Sclat. 
* See note. 
