474 Annals of the South African Museum. 



1. Nuchas tessellata. 



Lacerta tessellata, Smith, Mag. N. H. (2) ii., 1838, p. 92. 



Nucras tessellata, Bouleng., I.e., p. 52. 



May be divided into a number of well-defined varieties. 



A. Foot considerably longer than the length of the head measured 



to the posterior border of the ear. 

 Neck and anterior part of back black, with 3 or 4 white lines 

 above and white vertical bars on the sides ; posterior part of body 

 pale buff, with or without black spots. 39-47 scales across the 

 body . . Forma typica. 



Cape Colony. 



Cape Colony: Little Namaqualand (Peringuey, Scully, Schlechter); 



Clanwilliam (Leipoldt) ; Calvinia (Leipoldt) ; Robei'tson (Melie) ; 



Worcester (Paynter). 



Pale reddish brown above and on the sides ; two white, black- 

 edged streaks on the neck ; 45-47 scales Var. eic7a)!s, Smith. 



Little Namaqualand. 



Neck black with 6 white lines above and white bars on the 

 sides ; back pale butf behind, with black vermiculations or 

 lineolations ; a white, black-edged dorso-lateral line ; sides 

 black, spotted with white ; 46--56 scales Var. livida, Smith. 



North-Westeru parts of Cape Colony. 

 Little Namaqualand (Scully). 



Eight white lines on the back and sides, sepai'ated by black 

 streaks, sometimes a ninth on the neck ; the series origi- 

 nating just above the ear sometimes broken up into spots; 

 45— 50 scales Y&r. t(Cinolatn, Hmith. 



Cape Colony, Natal, Mossamedes. 



Cape Colony : Little Namaqualand (Peringuey). 



Natal : Pine Town (Bowker). 



B. Foot not or but slightly longer than the head. 



Sides of neck and body black with round white spots and back 



brown with three light, black-edged longitudinal lines, or brown 



or blackish above and on the sides with 7 white lines, the outer 



of which may be broken up into spots; 46-60 scales Var. Iioluhi, Stdr. 



North and east parts of Cape Colony, Orange Eiver Colony, 



Transvaal, Rhodesia. 

 Cape Colony : Burghersdorp (Kannemeyer) ; Little Namaqualand 



(Peringuey) 



