290 AaAMTD^. 



11. Gomyoceplialus mterruptus. (Piate XXI.) 



Snout as long as the diameter of the orbit ; canthus rostralis and 

 supracUiary edge projecting; tympanum smaller than the eye- 

 opening ; upper head-scales small, keeled, slightly enlarged on the 

 supraorbital region ; scattered conical scales on the back of the head 

 and on the temple ; ten or eleven upper and eleven or thirteen lower 

 labials. Gular sac small, without serrated anterior edge; gular 

 scales strongly keeled, smaller than ventrals, intermixed with a few 

 enlarged ones on the sides. Nuchal crest formed of lanceolate spines 

 with smaller keeled ones at the base ; its height equals two thirds 

 the length of the snout: dorsal crest not continuous with, and 

 lower than, the nuchal, gradually decreasing in height. Dorsal 

 scales very small, smooth or indistinctly keeled, with the points 

 directed upwards and backwards ; enlarged scales on the flanks, 

 forming irregular vertical series ; numerous small tubercles on the 

 nape ; ventral scales of moderate size, keeled. Limbs with unequal 

 keeled scales ; third and fourth fingers equal ; the adpressed hind 

 limb reaches the nostril. Tail strongly compressed, with slightly 

 serrated upper edge ; caudal scales all keeled, largest inferiorly ; 

 length of the tail twice that of head and body. Pale olive above, 

 the enlarged tubercles and two cross bands, one on the nape, the 

 other between the shoulders, whitish ; tail with regular dark-brown 

 annuli ; limbs with rather indistinct dark cross bands ; throat with 

 very indistinct dark lines. 



Total length 280 mfflim. 



Head 29 „ 



Width of head •. . 22 „ 



Body 66 „ 



Fore Hmb 53 „ 



Hind limb 85 „ 



Tan 185 „ 



PhUippine Islands, 

 a. c?. Mindanao. Mr. G. Taylor [P.]. 



12. Gonyocephalus dilophus. 



Tiaris megapogon {Schleg.), Ch-ay, Cat. p. 239. 

 Lophyrns dilophus, thim. Sj- Bihr. iv. p. 419, pi. xlvi. 

 Gonyocephalus (Lophosaurus) dilophus, Fitz. Syst. Rept p. 45. 

 Tiaiis dilophus, Doria, Ann. Mm. Qenov. vi. 1874, p. 345. 

 GonyocepEalus (Tiaris) dilophus, Peters ^ Doria, Ann. Mus. Genov. 

 xiii. 1878, p. 376. 



Upper head-scales small, strongly keeled; occipital enlarged; 

 tympanum quite as large as the eye-opening ; eleven upper and as 

 many lower labials. Gular sac very large, with strongly serrated 

 anterior edge ; gular scales small, keeled, with scattered strongly 

 enlarged ones. Nuchal crest not continuous with dorsal, its height 



