340 



188; anal divided; subcaudals 100-112. Light brownish bronze 

 or greenish yellow above, the scales with black edges forming more 

 or less regular longitudinal lines ; a yellowish lateral streak edged 

 above and below by a black band, the lower of which extends on 

 to the outer edge of the ventrals ; lips and lower surfaces pale 

 metallic citrine, the tail with a black median line. 



Total length 5 feet ; tail 1 foot 3 inches. 



Hob. Mergui, Malay Peninsula, Borneo, Sumatra, Celebes; 

 specimens were also obtained in the Wynaad by Col. Beddome. 



This very unusual geographical distribution is not unparalleled, 

 as we meet with the same in Simotes octolineatus. Special affinity 

 between the Malay and South-Indian fauna is also exhibited in the 

 lizards of the genera Draco and Liolepis. 



Genus PSEUDOXENODON. 



Maxillary teeth 20 to 25, increasing in size posteriorly, the two 

 last abruptly enlarged ; mandibular teeth subequal. Head distinct 

 from neck, which is dilatable ; eye large, with round pupil ; head- 

 shields normal. Body moderately elongate, cylindrical ; scales on 

 the anterior part of the body disposed obliquely, narrow and much 

 imbricate, in 17 or 19 rows ; dorsals keeled, without apical pits ; 

 ventrals rounded ; subcaudals in two rows. 



This new genus is distinguished from Tropidonotus by its oblique 

 scales, and from Xenodon, Boie (type X. severm, L.), by its longer 

 maxillary with much more numerous teeth. Besides P. macrops, 

 it embraces the South-Chinese Tropidonotus dorsalis, Grthr., and the 

 Javan Xenodon inornatus, Boie. 



422. Pseudoxenodon macrops. 



Tropidonotus macrops, Blyth, J. A. S. B. xxiii, 1855, p. 296 ; Gimth. 



Kept. B. I. p. 263 ; Stoliczka, J. A. S. B. xl, 1871, p. 436 ; Theob. 



Cat. p. 174. 



Xenodon macrophthalmus, part., Gilnth. Cat. Col. Sn. p. 58. 

 Tropidonotus macrophthalmus, part., Gilnth. Itept. B. I. p. 262, 



pi. xxii, fig. C. 



Tropidonotus macrophthalmus, Anders. P. Z. S. 1871, p. 177. 

 Tropidonotus sikkimensis, Anders. J. A. S. B. xl, 1871, p. 17. 



Eye large, its diameter more than its distance from the nostril ; 

 rostral just visible from above ; suture between the internasals 

 shorter than that between the prafrontals ; frontal slightly shorter 

 than its distance from the end of the snout, shorter than the parie- 

 tals ; loreal as long as deep or deeper than long ; one pra3ocular ; 

 three postoculars ; temporals 2 + 2; 8 upper labials, fourth and 

 fifth entering the eye ; 4 or 5 lower labials in contact with the an- 

 terior chin-shields, which are a little shorter than the posterior. 

 Scales more or less strongly keeled, in 19 rows anteriorly, in 17 on 

 the middle of the body. Ventrals 160-173 ; anal divided ; sub- 

 caudals 60-75. Brown or olive above, with or without a dorsal 



