Annals of the Transvaal Museum, 
125 
The following table relates in part to the variation in the characters 
employed by Mr. Boulenger in the separation of G. weiri. 
No. 
Dorsal tubercles 
Supraorbitals separated 
by 
No. of ventral 
scales corre- 
sponding to 
horizonta 1 
diameter of 
eye. 
Labials. 
Length in mm. 
3002 
Not strongly keeled 
2 rows 
of tubercles 
8-9 
ii 
86 
3003 
Moderately enlarged 
* 2 
„ 
8 
-to 
87 
soot 
Keeled, moderate 
2 
6 
TT 
86 
3005 
Keeled, moderately en- 
3 
6 
T *2 
94 
larged 
to 
o 
CO 
Nearly smooth, moderate- 
3 
7? 
6 
11-10 
12-10 
86 
ly enlarged 
3007 
Keeled, moderate 
3 „ 
77 
8 
To 
82 
3008 
7? 7? 
3 
7? 
9 
87 
3009 
Keeled, rather small to 
6 
To 
87 
moderate 
3010 
Moderate to rather small 
2 „ 
9 
8 
To 
86 
3011 
Keeled, moderate 
2 „ 
77 
8 
TT 
3012 
7? ^ 7? 
2 „ 
77 
7 
TT 
66 
3013 
2 to 3 rows of tubercles 
10 
TT 
67 
3014 
Keeled, rather large 
2 to 3 
. « 
9 
54 
3015 
Keeled, moderate 
3 rows of tubercles 
9 
io 
59 
3016 
2 
7? 
11 
TT 
3017 
2 
7? 
12 
IT 
3018 
2 
. 
10 
1 o 
1 0 
3019 
Keeled, moderate 
2 
8 
lT 
68 
3020 
Rather strongly keeled, 
2 
7.7 
6 
T<T 
86 
moderate 
3021 
3 
7? 
5 
1 o 
TT 
3022 
Keeled, rather small 
2 
10 
TT 
48 
3023 
2 „ 
7? 
8 
To 
Boulenger (loc. cit.) states that C. weiri is distinguished from 
C. angulifer by its larger ventral scales but adds that the two species are 
probably not separable. We find that the characters on which C. weiri 
was founded are variable in specimens from the same locality : we have 
therefore united the two. 
The habits of this peculiar Gecko have never been recorded so far as 
we know. The creature is to be found in sandy and generally flat country 
or in dry river beds or occasionally in old houses. Nocturnal in habits, 
they spend the day in holes, which are generally a metre or so in depth, 
every individual occupying a burrow to itself. These burrows which do 
not connect one with another would often seem to be old holes of 
scorpions which Ghondrodactylus has enlarged and accommodated for 
its own requirements. At night these lizards squat near the mouth of 
their holes, and from dusk to dawn keep up such a chirping that they 
may become a real nuisance to the traveller in want of slumber. On a 
moonlight night one may sometimes surprise them wandering from their 
retreat : in this way two young specimens were taken. All the others 
were dug out. After a little experience one can tell pretty accurately 
which holes are occupied by this Gecko before commencing to dig : or, 
one can at night mark certain holes from which their chirp may appear 
to proceed and dig them up the next morning. The bastard Hottentots of 
Namaqualand affirm that both Ghondrodactylus and Ptenopus make this 
