EEPTILES COLLECTED IN DUTCH NEW GUINEA. 255 



Agamid^. 



9. GoNTOCEPHALus MODESTUS Meyer. 



Mimika E. (B. O. U. Exped.).— Camp Via, Utakwa R., 3000 ft. (Wollaston 

 Exped.), 



10. GoNYOCEPHALUS AURiTUS Meyer. (PL XXVIII. fig. 3.) 



One specimen from Mimika E. (B. O. U. Exped.). — One from Canoe Camp, Setekwa 

 E., and two from Camp III, Utakwa E., 2500 ft. (Wollaston Exped.). 



I have also examined a specimen from Fak-Fak, Dutch New Guinea, from Mr. A. E. 

 Pratt's Collection. 



The large blackish spot, within a light circle, which involves the ear, whence the 

 name proposed by Dr. A. B. Meyer, is very well marked in some of the specimens, whilst 

 in others it is broken up into smaller spots. The lobes of the nuchal crest are detached 

 from one another at the base and may be quite as long as the diameter of the large 

 tympanum ; dorsal crest lower than the nuchal, but very distinct. Gular scales smooth, 

 ventrals strongly keeled. Gular appendage very large in adults of both sexes. The 

 largest specimen measures 125 mm. from snout to vent, tail 340. 



11. GoNTOCEPHALUS NiGKiGULAEis Meyer. (PI. XXVIII. fig. 4.) 



I refer to this species six specimens from the Mimika E. (B. O. U. Exped.), and 

 three from Launch Camp, Setekwa E. (Wollaston Exped.), which agree in all essentials 

 with the very short description given by A. B. Meyer. 



This species diff"ers from G. godeffroyi Peters, to which it is closely allied, by the 

 perfectly smooth gular scales and the more feeble dorsal crest, which, on the tail, is 

 reduced to a mere serrature. Gular sac small. The coloration varies, but in most 

 adult specimens the top of the back, including the crest, bears seven or eight black 

 cross-bars separated by narrower greenish-white interspaces, and each black bar is 

 divided in the middle by a short and narrow greenish-white bar ; lobes of the nuchal 

 crest all greenish white ; lower surface of neck black or dark greyish olive behind the 

 gular sac. 



I append measurements of adult male and female specimens : — 



6. ?. 



Total length 880 685 mm. 



Head 70 47 



Width of head 50 27 



Body 160 138 



Fore limb 105 80 



Hind limb 175 135 



Tail 650 510 



VOL. XX. — PART V. No. 2. — March, 1914. 2 m 



