66 AGAMID.i;. 



ventral scales larger, keeled. Limbs above with large keeled 

 scales ; fourth finger slightly longer than third ; adpressed hind 

 limb not quite reacliing tip of snout. Tail compressed, with 

 serrated upper edge at the base. Olive or brownish above, sides 

 sometimes speckled with black ; in females and young sides with 

 blackish reticulation and a dark bar on each side of nape ; 

 enlarged dorsal scales usually whitish : gular sac of male bluish in 

 the middle with an orange red patch on each side ; gular fold 

 black ; belly white or yellowisli ; tail with darlv brown or black 

 iinnuli. 



Prom snout to vent 130 millim. ; tail 275. 



Borneo, Malacca, Semangko Pass (Selangor-Pahang border, 

 '2700 feet), Maxwell's Hill, Perak (3G00 feet) ; not uncommon 

 at Kuala Teku, Pahang (500 feet), but difficult to detect in the 

 •deep jungle in which it lives. 



65. Gonyocephalus harveyi. 



Boulenp:. Cat. Liz. iii, p. 493 (1887) ; id. Fascic. ^lalay., Zool. i, p. 153 

 (J 903). 



Tympanum slightly smaller than ear-opening ; upper head- 

 scales small, unequal in she, bluntly keeled ; a few- enlarged 

 tubercles above and below the tympanum ; 10 to 12 upper and 10 

 lower labials ; gular sac moderately large; gular scales smooth. 

 Nuchal and dorsal crests continuous, formed of long slender lobes 

 which are longest on the nape (longer than snout in full-grown 

 male), and generally decrease in size on the back, with smaller 

 smooth scales at the base. Dorsal scales small, smooth, the 

 points directed upwards and backw^ards, with a few enlarged 

 scales scattered on the sides ; ventral scales larger, smooth or 

 faintly keeled. Limbs above with large, very faintly keeled scales ; 

 fourth finger slightly longer than third ; adpressed hind limb 

 reaching tip of snout. Tail compressed, with serrated upper 

 edge at the base. Olive or brownish above, back of head and 

 nape sometimes with blackish vermiculations ; females and young 

 with dark cross-bars on body and limbs ; enlarged tubercles on the 

 •sides usually whitish ; lower parts whitish, gular fold blackish, 

 the gular region with dark longitudinal lines in the young ; tail 

 with dark brown or black annuli. 



Prom snout to vent 145 millim. ; tail 310. 



Malacca ; Batang Padang, S. Perak ; jN'atuna Islands. 



66. Gonyocephalus grandis. 



Dilophynis grandis, Gray, Cat. Liz. p. 2.39 (1845) ; Cantor, Journ. 



Asia't. Soc. Beng. xvi, p. 640, pi. xx (1847) ; Giinth. llept. Brit. 



Tnd. p. 136 (1864). 

 Oo7iyoce2)halus grandis, Bouleng. Cat. Liz. i, p. 298 (188o) ; id. 



Faun. Brit. Ind., Rept. p. 124 (1890) ; id. Fascic. Malav., Zool. i. 



p. 153 (1903). 



Tympanum nearly as large as eye-opening ; upper head-scales 



