12. GQNYOCEPHALtrS. 295 



19. Gonyocephalus auritns. 



Gonyocephalus (Hypsilurus) auritus, Meyer, Mon. Berl. Ac, 1874, 



p. 130. 

 (Arua) auritus, Peters ^ Doria, Ann. Mus. Genov. xiii. 1878, 



p. 382. 



" Allied to G. binotatus, but much smaller. Crest hardly inter- 

 rupted, low. A black spot on each side of the head, involving the 

 ear. No large plates under the tympanum. Gular sac large, covered 

 with small keeled scales." 



New Guinea. 



20. Gonyocephalus bruijnii. 



Gonyocephalus (Hypsilurus) bruijnii, Peters ^ Doria, Ann. Mus. 

 Genov. xiii. 1878, p. 379. 



Upper head-scales strongly keeled ; ten to twelve upper and nine 

 or ten lower labials. Gular sac little developed ( $ ?) ; gular scales 

 small, nearly smooth. Nuchal and dorsal crests subcontinuous, 

 separated by a notch, the former slightly higher than the latter, 

 composed of lanceolate lobes. Dorsal scales small, hardly keeled, 

 forming slightly ascending transverse series ; ventral scales much 

 larger and strongly keeled. Brownish blue above, whitish beneath, 

 with black spots at the base of the dorsal crest ; tail with darker 

 annuli. 



Total length 580 millim. 



Head 40 



Body 90 



Fore limb 70 



Hind limb 120 



Tail 450 



Mount Arfak, New Guinea. 



21. Gonyocephalus binotatus. 



Gonyocephalus (Hypsilurus) binotatus, Meyer, Mon. Berl. Ac. 1874, 

 p. 130 ; Doria, Ann. Mus. Genov. vi. 1874, p. 345 ; Peters 8f Doria, 

 Ann. Mus. Genov. xiii. 1878, p. 379. 



" Crest uninterrupted, low, bluish. Gular sac moderately large, 

 covered with small keeled scales. A large, strongly marked group 

 of white i)lates below the tympanum. Beautifully marbled, espe- 

 cially on the nape. Two large, elongate, oval, black-edged, more 

 strongly marked spots on the side^ of the neck. Extremities and 

 tail barred. Back black-dotted. Lower surface yellowish. During 

 life with very fine pink and bluish tints." 



New Guinea. 



22. Gonyocephalus godeflfroyi. 



Lophura (Hypsilurus) godefiroyi, Peters, Mon. Berl. Ac 1867, p. 707, 

 pi. -. fig. 1. 



