A Revision of the Lizards of the Genus Nucras, Gray. 211 



Gr. As in K, but without the light vertebral streak, and with black 

 dots on the back and on the sides of the belly. Urnfolosi River. 



H. As in D, but no light vertebral streak, and the light dorso-lateral 

 streak ending midway between the fore and hind limbs ; black dots on 

 the sides of the belly. This variation forms a complete connection 

 with the typical N. intertexta, the only difference being that the light 

 ocellar spots on the nape and anterior part of the back have fused to 

 form a dark-ed^ed lateral streak. I)e Kaap Groldfields, Transvaal. 

 (PL VI, fig. 9). 



All the young specimens examined have 3 or 5 light dorsal streaks 

 and the tail is of a coralline red. 



The var. holubi must be regarded as more primitive than the typical 

 form, and the pattern described under A, along with the taeniolata 

 form of N. tessellata, as the original from which all others in the genus 

 can be derived without the least difficulty. 



Measurements (in millimetres) : 



1. 2. 3. 4. 5. 6. 7. 8. 9. 



From end of snout to vent 80 96 95 75 86 55 62 58 70 



to fore limb. 2S 29 34 25 30 19 20 21 23 

 Head . . . 19 20 24 17 20 13 14 13 15 



Width of head . . 12 13 15 11 12 8 9 8 10 



Depth of head . . . 11 11 13 10 10 7 7 8 8'5 



Fore limb 25 26 29 22 25 17 17 18 20 



Hind limb 38 39 45 33 36 26 26 29 33 



Foot . .... 19 20 21 17 18 13 13 14 16 

 Tail 170 215 123 180 116 135 



1. (?, Nyassa. 2. ?, Nyassa. 3. $, Umfolosi E. 4. ? , Zoutpansberg. 

 5. ? , De Kaap Goldfields. 6. $ , Yredefort Eel. 7. ? , Vredefort Ed. 8. <? f 

 Dongwenna. 9. 9 , Dongwenna. 



Particulars of Specimens Examined. 



1. 2. 3. 4. 5. 6. 7. 8. 9. 

 Forma typica. 



? Latakoo (type) . . . . 80 40 8 32 12 34 11 24 4-3 



Hgr. Kokong, Bechuan aland . . 44 42 6 31 13 33 13 24 4-3 



$ Eustenburg, Transvaal . 55 44 6 29 13 34 13-14 22 3 



? Pietersburg, . , . 63 44 8 34 12 36 14 25 4 



Yg. . . .. 40 43 8 30 10 37 13-12 23 3 



... 38 42 8 31 11 31 12 20 2 

 var. holubi. 



$ Port Elizabeth . . . . 56 50 6 28 9 26 11 21 4-5 



Burghersdorp, Cape Col. . . 50 49 6 28 11 28 12 24 5 



? Kimberley (S. A. Mus.) . . 52 44 8 28 11 29 12-13 22 4 



$ Vredefort Eoad, O.E. Col. . . 55 46 8 29 12 28 12 24 4-5 



. 52 48 8 28 10 26 12-14 21 5 



16 



