Pelew Islands; Bismarck Archipelago; Solomon Islands; Admi- 

 ralty Islands; Fiji Islands; N. Queensland. 



1 6. Gonyocephalus papuensis (Macleay). 



Tiaris papuensis, Macleay, Proc. Linn. Soc. N. S. W. II 1878, p. 101. 

 Gonyocephalus (Lophosteus) albertisii, Peters e Doria, Ann. Mus. Civ. Geneva 



XIII 1878, p. 377- 

 Gonyocephalus papuensis, Boulenger, Cat. Liz. I 1885, p. 297. 



Much resembling G. binotatus, from which it differs on the 

 following characters: tympanum much larger than the eye- 

 opening; nuchal and dorsal crests separated; latter supported 

 in its base by the spinose processes of the vertebrae. 



Pale brown above, tinged with reddish, with brown reticu- 

 lations and traces of dark transverse bands; dark lines radiating 

 from the eye; a similar dark oval spot on the side of the 

 neck as in G. binotatus, also bordered above and behind by 

 a pale brown streak, ending on the fore limb. Limbs and tail 

 barred with dark. Lower parts brownish; gular sac bluish, 

 with brown longitudinal lines. Length of head and body 

 1 60 mm.; tail 520 mm. 



Habitat: New Guinea! (Yule Island!, Nicura, Bongu, 

 Astrolabe Bay!, Bogadjim, Sattelberg, Dinawa, 4000 feet, 

 Gerekanumu, Haveri, Aleya, Fife Bay). Ferguson Island; 

 Trobiand Island. 



17. Gonyocephalus modestus Meyer. 



Gonyocephalus (Hypsilurus) modestus, Meyer, Mon. Berl. Ac. 1874, p. 130. 

 Gonyocephalus modestus, Boulenger, Cat. Liz. I 1885, p. 294 (s. syn.). 



Snout slightly pointed, about as long as the diameter of 

 the orbit; canthus rostralis not very sharp; supraciliary borders 

 normally raised ; tympanum as large as the eye-opening. Head- 

 scales very small, equal, keeled, occipital enlarged; below the 

 ear a single enlarged tubercle; nine to twelve upper and seven 

 or eight lower labials. Gular sac small, without serrated edge 

 and covered with small granular scales. Body compressed; 

 nuchal crest composed of four to six short, widely separated, 

 triangular scales, the first above the tympanum; no dorsal 

 crest, but a median series of keeled scales. Dorsal scales very 

 small, equal, keeled, the points directed upwards; ventral 

 scales larger, keeled. Tail compressed, with median series of 



INDO-AUSTRALIAN REPTILES I. 8 



