646 Catalogue of Reptiles inhabiting the [July, 



lo be constant. The scales of the neck and throat are small granular, 

 from which those covering the tympanum differ by being larger, flattened 

 and polygonal, The tubercles of the throat and neck, and many of the 

 scales of the back, wing-membranes, and the limbs, have each a minute 

 rounded cavity at the point, discernible by a lens. The pouches, chest 

 and abdomen are covered with rhombic, imbricate, keeled scales with- 

 out apical cavities. Each jaw has 16 labial scales. The tail is long, 

 very broad at the base, particularly in the male, suddenly tapering, 

 rounded above, and covered with strongly keeled, imbricate, rhombic 

 scales. The first large ones of the lowest series of the root form a 

 more or less conspicuous toothed crest. The lower surface is flattened, 

 with scales like the upper. The apex of the tongue is notched. 



Dentition. 



Incis. -L, Canin. hll, Molar, l JLl*>. 

 2 1— l' 15.15 



Colours. This species bears so close a resemblance to Draco volans, 

 that it is scarcely possible to point out any difference. The upper 

 parts of the body are metallic greenish brown, varied with golden rose- 

 colour or isabella, indistinctly dotted and lined with black. The wings 

 are golden isabella with transversal black bands, formed by series of 

 black rounded spots, either separate or confluent on the inner half, but 

 blending into one another on the outer-half. In some individuals 

 numerous undulating golden rose-coloured or buff lines longitudinally 

 intersect the bands. The margins are finely fringed with silver. The 

 limbs and tail are indistinctly ringed with black or brown. A black 

 spot on the vertex, between the eyes, appears to be constant also in 

 this species. The gular pouch and the throat are bright yellow, the 

 latter in some dotted with pale brown. The chest and abdomen whitish 

 yellow in some, bluish white in others. The under surface of the wings 

 is of the latter colour, in some with single large rounded black spots 

 near the margins, independent of the upper markings, which may be 

 distinguished through the hemitransparent membrane. 



Of this species but four, of which 2 males were received from Sir Wm. 

 Norris. They were all from the Hills of Pinang ;* none exceeded the 

 following dimension : 



* The Museum of the Asiatic Society possesses two females, obtained by the late Dr, 

 Spry in the Tenasserim Provinces. 



