556 DR. A. GtJNTHER ON REPTILES AND [NoV. 1, 



narrowed in front, nearly twice as long as the eye, and longer than 

 the distance between the eye and the small ear-opeuing. Ilostral 

 broad ; nostril opposite to the suture between the rostral and first 

 labial ; upper labials seven or eight ; mental broad, but not extending 

 backwards to the posterior margins of the first pair of lower labials, 

 which are separated from each other by a pair of small scutes. 

 Digits and toes very unequal, free ; the first digit and toe very 

 short, but provided with a claw. Seven prsennal pores disposed in 

 a chevron-shaped line. Tail with a median series of enlarged scutes 

 below. Brown, above marbled with darker ; sides of the thorax 

 with alternate yellow and black spots ; white below, throat with 

 three or four concentric V'^l^^P^d blue lines, the angles being 

 directed backwards. 



Length of body and head 38 millim. 



„ head 9 „ 



Tail mutilated. 

 One specimen. 



Chameleon isabellinus. (Plate XXXIII. fig. 2.) 



This species belongs to the dilepis-group of the genus, being 

 distinguished by the large scutes of the occipital flaps and of the 

 occiput. 



Casque slightly raised posteriorly ; parietal crest low, but distinct ; 

 distance between the commissure of the mouth and the extremity of 

 the casque considerably longer than the length of the mouth ; lateral 

 crest very distinct. Interorbital space rather concave. Occipital 

 lobes large, elongate, covered with flat scutes in three longitudinal 

 series ; also the scutes on the crown are flat, not tubercular. 

 Granules of the body homogeneous ; a dorsal and gular-ventral 

 crest. Tail at least as long as the body. Of an isabelline colour, 

 with a white straight band from the axil towards the groin, and 

 with a similar shorter, interrupted band above it. 



Total Length 6^ in. 



Length of tail 3| in. 



Distance of end of snout from end of 



parietal ciest 1 in. 



Width of interorbital space 4| lines. 



Rhampholeon platyceps. (Plate XXXIV. fig. 1.) 



Beside the additional cusp on each claw, neither the fingers nor 

 the toes are provided with a spine. Body finely granular, with 

 scattered slightly enlarged tubercles. The upper side of the head 

 and the interorbital space are flat, granular, with a transverse series 

 of somewhat larger granules crossing the interorbital space, and 

 anotiier crossing the temple ; another starts from each side of the 

 crown, and converging and meeting its fellow behind the occiput at 

 a very acute angle is lost on the back ; pairs of very small tubercles 

 are placed at regular distances along the vertebral line. Tail (lost 

 by accident) was probably as long as or perhaps shorter than that of 



