12/ 



slightly concave above; head-scales small, keeled; tympanum 

 almost as large as the diameter of the orbit; nostril large, 

 round, nearer to the tip of the snout than to the orbit; 

 thirteen or fourteen upper and thirteen lower labials. The 

 large dermal collar is covered with large keeled scales, its 



Fig. 55. Chlamydosanrns kingi Gray. 

 The large dermal expansion is folded up against each side of the neck. 



dorsal edge is provided with pointed scales. Processes of the 

 hyoid extend through the walls of the membrane. Dorsal scales 

 small, keeled, largest on the vertebral region. Ventral scales 

 larger. Three to eight femoral and one or two praeanal pores. 

 Tail slightly compressed, long, twice as long as head and body, 

 covered with equal, keeled scales, about as large as those on 

 the middle of the body. Limbs long, the hind limb reaches 

 the tympanum or the eye ; their scales are equal, keeled ; digits 

 long, keeled below. 



Brown above, with darker or yellowish markings. Lower 

 parts lighter; inside of mouth bright yellow. Upper surface of 

 membrane tinged with orange, vermilion and blue. Length of 

 head and body 260 mm.; tail 550 mm. 

 Habitat: New Guinea (Sam Senggasi near Okaba). — Australia. 

 The animal generally lives on trees, but when deisturbd it 

 runs on its hind legs in order to escape. If frightened, the 

 dermal expansion is erected and the mouth opened, showing 

 the large teeth and the bright yellow colour of the inside. 



