1. DRACO. 259 



opening. Upper head-scales very unequal, keeled ; a ^-shaped 

 series of enlarged scales on the forehead ; a large compressed spine- 

 like scale on the posterior part of the supraciliary region ; eight or 

 nine upper labials, the last twice or thrice as large as the preceding. 

 The male's gular appendage as long as the head. A slight indication 

 of a nuchal crest in both sexes. Dorsal scales subequal, keeled, small, 

 hardly larger than the ventrals ; a more or less distinct lateral series 

 of enlarged keleed distant scales. The fore limb stretched forwards 

 extends to the tip of the snout or slightly beyond ; the adpressed 

 hind limb does not reach the elbow of the adpressed fore limb. 

 Upper surfaces variegated olive and reddish-brown ; a black spot 

 between the orbits, another on the nape, and another on each side of 

 the neck before the shoulders ; wing-membranes above spotted or 

 marbled with black and with the margin black, inferiorly with a 

 few black spots or cross bands ; lower surface of limbs and a broad 

 zone along the belly blue in both sexes ; throat with blue-green 

 variegations ; the male's gular appendage red. 



Total length 222 millim. 



Head 16 „ 



Width of head 11 „ 



Body 76 „ 



Fore limb 80 „ 



Hind limb 36 „ 



Tail 130 „ 



Borneo. 



a. S ■ Borneo. Sir E. Belch sr [P.]. I ,r^ . 



b. 5 . Borneo. j V jr "-v 



c. 2 . N. Borneo. 



d. $ . Sarawak. 



6. Draco ornatus. 



Dracunculus ornatus, Gi'ay, Cat. p. 235. 

 Draco ornatus, Gilnth. Proc. Zool. Soc. 1873, p. 167. 



Head larger than in D. volans ; snout a little longer than the 

 diameter of the orbit ; nostril lateral, directed outwards ; tympanum 

 scaly. Upper head-scales very unequal, strongly keeled ; a more or 

 less distinct X'^baped series of enlarged scales on the forehead ; 

 eight to eleven upper labials, the last usually twice or thrice as large 

 as the preceding. The male's gular appendage as long as the head. 

 Male with a small nuchal crest. Dorsal scales unequal, keeled, the 

 largest twice as large as the ventrals ; on each side of the back a series 

 of enlarged keeled distant scales. The fore limb stretched forwards 

 extends beyond the tip of the snout ; the adpressed hind limb reaches 

 beyond the elbow of the adpressed fore limb, sometimes nearly to 

 the axil. Greenish-grey above with metallic gloss, dark transverse 

 markings and lighter spots ; generally a dark cross band between the 



s2 



