Eremioit. 237 



loug, tliose of the two outer series ou each side f ullv twice as l>road as 

 loua;. Preaual region covered witli numerous irregiihir scales, or with 

 those ou the median Hue a little enlarged. 



Scales ou upper surface of tibia rhombic, subimbricate, keeled, 

 as large as or a little larger than dorsals ; one series of very large and 

 one of small p'ates on the lower surface. 12 to 20 femoral pores on 

 each side, usually IS to 18. Subdigital lamellte bicariuate, 20 to 26 

 under the fourth toe, usually 22 to 24. 



Upper caudal scales very obliqu*", truncate behind, strongly and 

 diagonally keeled, often striated in addition, lower keeled ; 18 to 22 

 scales in the fourth or fifth whorl. 



Young black above and on the sides, with white streaks, the outer 

 of which may be broken up into series of spots ; limbs with round 

 white spots ; throat and belly white ; tail red. In what I regard as 

 tlie most primitive pattern (Inland of Berbera) there are 9 series of 

 white streaks on the neck, 8 on the body, 5 ou the base of the tail ; 

 of the 4 pairs, the innermost originates behind the iiiiddle of the 

 parietal shield and unites with its fellow on the base of the tail ; the 

 next starts from behind the eye and ends on the tail; the following 

 extends from below the nasal shields, through the middle of the 

 tympanum, to the groin, reappearing on the tail; the lowermost 

 extends from the chin-shields to the arm and from behind the arm to 

 the groin, and becomes converted into the serie.s of blue spots which 

 follows the side of the lielly in many adults. 



The variations, starting from the above type, are as follows : (a) 

 The vertebral streak on the nape disappears ; {h) the three median 

 streaks are reduced to one on tlie body from between the shoulders 

 (Tanga, Ndi) ; (c) the median streaks are reduced to one pair on the 

 neck, which fuse between the shoulders or at some distance furtlier 

 down the body (typical E. spcA-n')- 



The light streaks are usually retained in the adult, but the ground- 

 colour between them is grey, pale brown, or reddish, with black spots 

 usually in the form of cross-bars ; upper lip often blackish ; tail reddish 

 towards the end. Some specimens, mostly with the subocular bordering 

 the mouth, witli 5 light streaks on the body {E. spehii), others with 

 6 [E. gextseniata). In a series of 16 specimens from Takanugu, one 

 conforms to E. sextieniata in the 6 streaks and in the subocular not 

 reaching the mouth, one to E. spekii, whilst the others agree with 

 the latter in the subocular and with the former in the light streaks. 

 Tornier mentions examples in which the two median dorsal streaks 

 fuse to one half-way down the body, and one in which, after having 

 fused in the middle of the bodv, they divide again to fuse once more 



