210 Annals of the South African Museum. 



Varies much in markings. The principal variations may be arranged 

 as follows, starting with the most primitive. 



A. (N. tessellata, var. taeniolata, Bocage.). Four or five* white 

 dorsal streaks separated by wider dark brown interspaces, and three 

 white streaks on each side, the upper (proceeding from the temple 

 above the ear-opening) broken up, anteriorly, into a series of round 

 spots ; on the posterior part of the body, these markings fade into a 

 pale buff colour, which also occupies the upper surface of the limbs 

 and tail. The coloration is thus very similar to that of Smith's 

 L. taeniolata. Dongwenna, Mossamedes. (PI. VII, fig. 1.) 



B. (E. liolubi, Stdr., I.e., lower figure). Three white dorsal streaks 

 separated by broader black or dark brown interspaces, and 2 (some- 

 times broken up into spots) along each side ; the white vertebral 

 streak continued for a short distance on the tail, which bears 3 dark 

 longitudinal streaks ; the outer dorsal light streak extends on the 

 parietal shield, where it joins the light supraoi'bital border. Limpopo 

 Valley, Transvaal (Steindaclmer) ; Eustenburg, Transvaal ; Vredefort 

 Eoad, Orange River Colony ; Kimberley, Burghersdorp, Cape Colony. 

 (PL VII, fig. 2). 



C. (E. holubi, Stdr., I.e., upper figure). Back reddish brown, with 

 3 dark-edged light streaks ; a broad dark brown or black lateral 

 baud from the temple to above the hind limb, bearing 1, 2, or 

 3 series of roundish white spots, and edged below by a white streak 

 which may be broken up into spots. Limpopo Valley (Steiudachner) ; 

 Zoutpansburg, Transvaal ; Lydenburg, Transvaal ; Vredefort Eoad, 

 Orange Eiver Colony ; Bulawayo ; Port Elizabeth. (PI VII, fig. 3). 



D. As in the preceding, but temple and side of neck with black 

 and white vertical bars. Umfolosi Eiver, Natal; Pretoria; Bindura, 

 S. Rhodesia. (PI. VII, fig. 4). 



E. The black and white vertical bars are continued, more or less 

 distinct, on the flanks. Umfolosi Eiver. (PI. VII, fig. 5). 



F. Back reddish brown with black dots and mere traces of the 3 

 light streaks ; a blackish lateral band with very numerous small round 

 white spots ; sides of head with black and white vertical bars, tail with 

 numerous small dark and light spots. Lake Nyassa. (PI. VI, fig. 10). 

 This form appears to represent Bedriaga's L. cameranoi, from Tette, 

 Mozambique, but the fingers are not quite so short f, the figure 

 accompanying the desci'iptioii showing them to be very similar to 

 those of N. delalandii. 



Four in the male, five in the female ; only two specimens examined, 

 t They are shorter and thicker in the female than in the male. 



