REPTILES AND AMPHIBIANS FROM LAKE REGION 789 
In addition, by carefully examining and measuring each of these specimens 
our knowledge of the range of variation in this lizard is greatly extended. The 
following description is based on Dr. Bequaert’s series, information in brackets 
refers to the type which is the only other known specimen. 
Description. Body not depressed. Head feebly depressed, 13 to 1{ times, 
with an average of 14 times, as long as broad; snout obtuse. The adpressed 
hind limb reaches to the wrist or as far as the axilla of the fore limb, usually 
barely to the elbow; foot equal to, or a little longer or a little shorter, than 
the head. 
Head shields as in A. africanus; four upper labials anterior to the sub- 
ocular, in No. 24785 only three on the right side, in No. 24786 and a duplicate 
lizard five, on the right side, normal four on the other. Temporal scales small, 
flat, smooth. Gular scales smooth small anteriorly increasing in size toward 
the collar, twenty-five in a longitudinal series; gular fold slight or absent. 
Collar with very slightly serrated edge, composed of eight or nine plates of 
which always two, sometimes three of the outer ones are very much smaller 
than the others. 
Dorsal scales rhombic, slightly imbricating with sharp diagonal keels; lateral 
scales smaller, two or three rows corresponding to a ventral plate; thirty-one 
to forty-two scales across the middle of the body exclusive of the ventral plates 
which are in eight series, the outer row much smaller than the others. Ven- 
trals in twenty-two to twenty-seven transverse series. Preanal plate large, 
with a single plate before it and smaller scales on the sides. Twelve to nineteen 
femoral pores on either side rarely the same number on both sides of the same 
animal. Nineteen to twenty-five lamellar scales under the fourth toe but the 
whole series not examined. Upper caudal scales much longer than broad, 
strongly keeled and very slightly mucronate; lower scales distinctly but less 
sharply keeled. 
Coloration. Black above, bronzy on the mid-dorsal area, with many scat- 
tered small light bluish dots; lower surfaces of limbs gamboge yellow; throat 
and belly slaty, lighter on the midventral area; lips not yellow, tail white 
below, dark slaty above. 
Measurements of male No. 24773. 
BLO AG AMG WOUYs tia xe; spade Barada Ge Gow ae - 69 mm. 
RINE B ae ee Bea ORE Ey MiB ray hy Wider Oe, Goes, A op. 
emg Oik OL GNA a inl cane ele awk nase vs 1 a 
VV TOUGH QE MIS os%yo3 fg ane arn ele a Ree Avge ace «4 i a 
Deyo tilagleligd:(: (6 i ii er ris oe ere LO 
ERCP BILEN I A 6 sentient, Yall A etoweas Aaa aw 4 a 
1500.8 ag. 0 a ae or ne Oe a8. 
|: in.8 eae, eee aes a ee ney Cen, ee ee yy a 
The largest specimen in body length measured 174 (76 + 98) while one 
measuring 182 (69 + 113) mm. had a longer tail; the smallest was 88 (41 + 
47) mm. 
