14. Physignathus Cuvier. 



(CuviER, Regne An. 2nd. ed. II, p. 41, 1829). 



Body compressed, covered with keeled scales. Nuchal and 

 dorsal crests present. No gular sac; a strong transverse gular 

 fold. Tympanum distinct. Tail round or compressed. Toes 

 denticulated laterally. Femoral pores present, sometimes absent 

 in females. 



Distribution. Siam; Cochin-China; Australia; New Guinea; 

 Kei Islands; Timor Laut. 



Key to the Indo-Australian species. 



A. Tail slightly compressed, not crested. 



I. Nostril a little nearer the tip of the snout than 



the orbit; gular scales very feebly keeled . . . i. P. temper alls p. 131. 

 II. Nostril equally distant from the orbit and the 



tip of the snout; gular scales strongly keeled. 2. P. maculilabris p. 132. 



B. Tail strongly compressed, crested 3. P. lesueuri p. 133. 



I. Physignathus temporalis (Giinther). 



Grammatophora temporalis^ part., Giinther, Ann. Nat. Hist. (3) XX 1867, p. 52. 

 Physignathus temporalis, Boulenger, Cat. Liz. I 1885, p. 397, pi. XXXI, fig. 4 

 (s. syn.). 



Snout as long as the distance between the orbit and the 

 posterior border of the ear. Nostril a little nearer the tip of 

 the snout than the orbit; tympanum half the diameter of the 

 orbit. Head covered with strongly keeled scales, large on the 

 snout, smaller on the occiput; cheeks swollen, covered with 

 strongly keeled scales, three or four scales at the posterior 

 border more prominent; gular scales very feebly keeled. Body 

 compressed, covered with keeled, imbricate scales, median 

 largest, all obliquely directed upwards; a slight dorsal crest. 

 Ventral scales larger than dorsals, strongly keeled ; two femoral 

 and two praeanal pores on each side. Tail slightly compressed, 

 two to three times as long as head and body; a serrated 

 ridge on the upper basal part. Limbs long; toes denticulated 

 laterally. 



Reddish-brown above, head darker; dark transverse bands 

 on the back, a light band along each side; head with a light 

 band bordering the upper lip; dark lines radiating from the 

 eye; a broad dark band from the eye, through the ear to 



