V. rudicollis
Harlequin monitor, Rough-necked monitor
Distribution: Thailand, Myanmar, Malaysia, Borneo and Sumatra.
CITES: appendix II.
Easy-to-see descriptors
- transversal section of the tail : laterally compressed
- spiny tail : absence
- tail with median double-keel : presence
- bicoloured tail : absence
- position of nostrils between eyes and tip of snout : same distance from eyes than from tip of snout ; nearer the eyes than the tip of snout
- nostrils' form : oval or split-like
- tongue coloration : light pink or whitish
- prehensile tail : absence
- nuchal scales : bigger than head scales
- form of the snout : triangular
- pale band on the snout : absence
- relief of nuchal scales : conical relief
Expert descriptors
- direction of nostrils : laterally directed
- other head scales : the supra-ocular scales are surrounded by rows of tiny scales
- supra-ocular scales : specific pattern formed by one row of scales
- SVL - snout vent length : up to 40 centimeters ; 40 centimeters and more
- scale count around midbody : 130 to 139 ; 140 to149 ; 150 to 159 ; 160 to 169
- Origin of the specimen : Asia and austral isles