50 
Annals of the Transvaal Museum. 
the variety nigrolineatus from Nitdraai, east of Windhuk, but this appears 
to be his only record for flavigularis from German South-West Africa. 
Gerrhosaurus auritus Boett. — I have already given reasons for sus- 
pecting the validity of this species, and it now appears that it is only known 
to Dr. Werner through the original description. 
Mabuia. — The records for this genus require thorough revision. 
Dr. Werner has evidently confused together the two species trivittata and 
varia, though they are not closely allied ; his figure of varia (PI. 8, fig. 12) 
really represents a half grown specimen of trivittata. In his description 
of calaharica, reduced by Mr. Boulenger as a form of trivittata, Dr. Werner 
says ‘ subocular scute not reduced and subdigital lamellae smooth ”, and 
yet he placed it as a near ally of varia. 
M. peringueyi Boul. — In view of the variation exhibited by this form 
and by homalocephala as mentioned in my previous paper, it will be neces- 
sary to regard peringueyi as a local form of homalocephala. 
M. occidentalis Pet. — According to Dr. Werner this species is dis- 
tinguished from trivittata by the following characters, in addition to that 
of the ear lobules : occidentalis has 23 subdigital lamellae and the anterior 
angle of the frontonasal is a right angle : trivittata has 19 subdigital 
lamellae and the anterior angle of the frontonasal is obtuse. 
M. trivittata Cuv. — Mafeking (Kimberley Museum). 
M. varia Pet. — This species closely resembles striata as stated in my 
previous paper, and it may also be very similar in dorsal pattern to sulcata ; 
in our Middelburg (Cape) specimens of varia there is the same longitudinal 
striping as in sulcata, and the white lateral streak of a typical varia is not 
well marked. It can be distinguished from sulcata by the subocular 
character and by its longer ear lobules. 
Middelburg, C.P. (P. O’Connor), Victoria West (P. D. Morris). 
M. sulcata Pet. — The characters cited in Mr. Boulenger’s key are 
insufficient for separating sulcata and striata. The presence of tricarinate 
dorsal scales in sulcata has been noted both by Dr. Werner and myself. 
The Durban record (Boulenger) requires confirmation. 
M. hildebrandti Pet. — This was first recorded from South Africa by 
Dr. Werner and more recently by Mr. Boulenger. The identification 
appears to be somewhat doubtful. Dr. Werner’s figure does not agree 
with the description of the species as given in the Brit. Mus. Cat. ; however, 
he mentions that the identification is uncertain, as in his specimens the 
first upper labial is not in contact with the loreal — whereas they are broadly 
in contact in the type specimens — and, moreover, the hind-limb is shorter 
and the colour different. Whatever may be the identity of Werner’s 
species, it cannot be quite the same as the form called hildebrandti by 
Boulenger, for the latter author in his key distinguishes between varia and 
hildebrandti simply by the length of the hind-limb in relation to the body, 
and Werner’s figure agrees precisely with varia in this respect ; this figure 
unfortunately does not clearly show the subocular character, so that it is 
impossible to judge further of its affinity to varia. The disconnected 
distribution of hildebrandti as cited by Mr. Boulenger is somewhat 
remarkable, “ Somaliland, German South-West Africa, Little Namaqualand”, 
Tint is not specially anomalous if hildebrandti is merely a longlegged 
