GastrnphoUs. 117 



the subocular, which is narrower beneath than above ; temporal scales 

 small, subequal, mostly hexagonal. 



Gular scales large, flat, and smooth anteriorly, larger, subimbricate, 

 and feebly keeled towards the collar, 22 to 28 between the symphysis 

 of the chin-shields and the median collar-plate ; gular fold feeble. 

 Collar even-edged, composed of 9 to 11* feel>ly keeled plates. 



Scales on the body oval or rhombic, juxtai^osed, feebly keeled, 

 largest on the sides ; 25 or 26 scales across the middle of the liody.t 

 Ventral plates rather strongly keeled, longer than broad, the over- 

 lapping posterior border obtusely pointed, in 12 longitudinal and 32 

 or 33 transverse series. Preanal region covered with two transverse 

 series of irregular keeled plates, of which an anterior and a posterior 

 pair may be enlarged. 



Scales on upper surface of tibia rhombic, feebly keeled, smaller 

 than largest dorsals. 10 to 12 femoral pores on each side. J 24 to 30 

 lamellar scales under the fourth toe. 



Caudal scales strongly keeled, very obtusely jjointed behind, in more 

 or less distinctly longer and shorter w^horls alternately, 2-4 to 28 in 

 the fifth whorl behind the postanal granules. 



Female pale brown above, with a broad white, black-edged dorso- 

 lateral streak from the nape to the base of the tail ; tail with two 

 series of white spots, the continuation of the dorsolateral streaks ; 

 lower parts white. The male {G. prasina) is described by Werner as 

 bluish green above, tail with black and white spots, greenish white 

 beneath. 



Measurements (in millimetres) : 



From end of snout to vent . 



,, „ ,, fore limb 



Length of head . 

 Width of head . 

 Depth of head 

 Fore limb . 

 Hind limb . 

 Foot . 

 Tail . 



The types of this species, two females preserved in the British 

 Museum, once formed part of Dr. J. G. Fischer's collection, and are 



* 13 in the type of G. lutzci. 



t 21 in the type of G. lutzei, 32 in the type hi G. pvasina. 



X 13-14 in the types of G. lutzei and prasina. 



§ After Werner. 



