109 



upwards, intermixed with transverse series of enlarged ones; 

 ventral scales small, larger than dorsals, sharply keeled. Tail 

 compressed, with a crest on its anterior third, as high as the 

 dorsal; caudal scales keeled, especially the inferior; its length 

 one time and a half that of head body. Limbs long, slender, 

 covered with equal, keeled scales, the hind limb reaches the 

 nostril; fourth finger a little longer than third. 



Reddish-brown above, with dark transverse bands, sometimes 

 indistinct, dorsal crest olive; the enlarged dorsal scales olive; 

 tail with dark annuli. Lower parts yellowish-brown ; gular sac 

 blackish, with light longitudinal lines; the scales of the anterior 

 edge whitish or oHve. Length of head and body 220 mm.; tail 

 330 mm. 



Habitat: Kei Islands; Aru Islands; Batanta; New Guinea 

 (Jobi, Mafoor, Fak Fak, Sorong, Mt. Epa, Andai, Lobo, Dorei, 

 Passim, Rubi, Mt. Arfak, Mansinam, Etna Bay!, Lorentz river!, 

 Mimika river, Stekwa river, Sekru!, lake Sentani!, Manokwari!, 

 Koime river!, Humboldt Bay!, Begowre river!, Sepik river, 

 Germaniabucht, Eitape, Bongu on Astrolabe Bay, Bogadjim, 

 Sattelberg, 800 M., Katow, Bara Bara, Haveri, Moroka, 2300 

 feet, Dinawa in Owen Stanley Range, Vikaiku, Madew on 

 St. Joseph river). — Ferguson Island, d'Entrecasteaux Archi- 

 pelago. 



An oval egg of this species is found measuring 34 by 15 mm. 



12. Gonyocephalus grandis (Gray). 



Dilophyrus grandis^ Gray, Cat. 1845, p. 239. 

 Gonyocephalus grandis^ Boulenger, Cat. Liz. I 1885, p. 298. 



Snout longer than the diameter of the orbit; canthus rostralis 

 sharp; supraciliary border normally raised; tympanum distinct, 

 about as large as the eye-opening. Head-scales small, unequal, 

 keeled, the largest on the canthus rostralis and the supraorbital 

 borders; one or two enlarged tubercles above the ear-opening; 

 ten to thirteen upper and lower labials. A moderate gular sac, 

 no serrated edge, covered with small smooth scales. Body 

 compressed; nuchal and dorsal crests separated by a deep 

 notch, the height of the former is about the length of the 

 snout, latter a little lower; it is formed of long narrow scales, 

 united together except at the tips, with three rows of smaller 

 smooth scales at the base. In females the crests are much 



