[Easy-to-see descriptors] transversal section of the tail [Easy-to-see descriptors] "spiny"tail [Easy-to-see descriptors] tail with median double-keel [Easy-to-see descriptors] bicoloured tail [Easy-to-see descriptors] position of nostrils between eyes and tip of snout [Easy-to-see descriptors] nostrils' form [Expert descriptors] direction of nostrils [Easy-to-see descriptors] tongue coloration [Easy-to-see descriptors] prehensile tail [Easy-to-see descriptors] nuchal scales [Expert descriptors] supra-ocular scales [Expert descriptors] other head scales [Easy-to-see descriptors] relief of nuchal scales [Expert descriptors] SVL - snout vent length [Easy-to-see descriptors] form of the snout [Expert descriptors] scale count around midbody [Easy-to-see descriptors] pale band on the snout [Expert descriptors] Origin of the specimen
V. albiguralis laterally compressed absence presence absence nearer the eyes than the tip of snout oval or split-like laterally directed light pink or whitish ; blue, purple or black absence bigger than head scales no specific pattern or scales of head homogenous in size not applicablehemispheric relief ; conical relief up to 40 centimeters ; 40 centimeters and more triangular 110 to 119 ; 120 to 129 ; 130 to 139 ; 140 to149 ; 150 to 159 ; 160 to 169 absence Africa and Arabian peninsula.
V. bengalensis laterally compressed absence presence absence nearer the eyes than the tip of snout oval or split-like laterally directed light pink or whitish ; blue, purple or black absence same size than head scales specific pattern formed by one row of scales The supra-ocular scales are surrounded by two rows of tiny scales. not applicableup to 40 centimeters ; 40 centimeters and more triangular ?absence Asia and austral isles
V. dumerilii laterally compressed absence presence absence same distance from eyes than from tip of snout ; nearer the eyes than the tip of snout oval or split-like laterally directed light pink or whitish absence bigger than head scales specific pattern formed by one row of scales ; no specific pattern or scales of head homogenous in size The supra-ocular scales are surrounded by two rows of tiny scales. hemispheric relief up to 40 centimeters ; 40 centimeters and more triangular 69 or less ; 70 to 79 ; 80 to 89 ; 90 to 99 ; 100 to 109 absence Asia and austral isles
V. exanthematicus laterally compressed absence presence absence nearer the eyes than the tip of snout oval or split-like laterally directed light pink or whitish ; blue, purple or black absence bigger than head scales no specific pattern or scales of head homogenous in size not applicablehemispheric relief up to 40 centimeters ; 40 centimeters and more triangular 70 to 79 ; 80 to 89 ; 90 to 99 ; 100 to 109 absence Africa and Arabian peninsula.
V. flavescens laterally compressed absence presence absence nearer the tip of snout than the eyes oval or split-like laterally directed blue, purple or black absence bigger than head scales no specific pattern or scales of head homogenous in size not applicablerelief made by a keel up to 40 centimeters ; 40 centimeters and more triangular ?absence Asia and austral isles
V. gouldii group laterally compressed absence presence absence nearer the tip of snout than the eyes well round ; oval or split-like laterally directed ?absence same size than head scales no specific pattern or scales of head homogenous in size not applicablenot applicableup to 40 centimeters ; 40 centimeters and more triangular 130 to 139 ; 140 to149 ; 150 to 159 ; 160 to 169 ; 170 to 179 ; 180 to 189 ; 190 and more absence Asia and austral isles ; continental Australia
V. griseus roundish absence absence absence nearer the eyes than the tip of snout oval or split-like laterally directed light pink or whitish absence same size than head scales no specific pattern or scales of head homogenous in size not applicablenot applicableup to 40 centimeters ; 40 centimeters and more triangular 100 to 109 ; 110 to 119 ; 120 to 129 ; 130 to 139 ; 140 to149 absence Africa and Arabian peninsula. ; Asia and austral isles
V. indicus group laterally compressed absence presence absence nearer the tip of snout than the eyes well round laterally directed ?absence same size than head scales specific pattern formed by one row of scales The supra-ocular scales are surrounded by two rows of tiny scales. not applicableup to 40 centimeters ; 40 centimeters and more triangular 69 or less ; 70 to 79 ; 80 to 89 ; 90 to 99 ; 100 to 109 ; 110 to 119 ; 120 to 129 ; 130 to 139 ; 140 to149 ; 150 to 159 ; 160 to 169 ; 170 to 179 ; 180 to 189 ; 190 and more absence Asia and austral isles ; continental Australia
V. komodoensis laterally compressed absence presence absence nearer the tip of snout than the eyes oval or split-like dorso-laterally directed light pink or whitish absence same size than head scales ; bigger than head scales no specific pattern or scales of head homogenous in size not applicableconical relief up to 40 centimeters ; 40 centimeters and more rectangular ?absence Asia and austral isles
V. mabitang laterally compressed absence presence absence same distance from eyes than from tip of snout ; nearer the tip of snout than the eyes oval or split-like laterally directed ; dorso-laterally directed light pink or whitish absence same size than head scales ??not applicableup to 40 centimeters ; 40 centimeters and more triangular ?absence Asia and austral isles
V. niloticus laterally compressed absence presence absence same distance from eyes than from tip of snout well round laterally directed blue, purple or black absence same size than head scales no specific pattern or scales of head homogenous in size not applicablenot applicableup to 40 centimeters ; 40 centimeters and more triangular 130 to 139 ; 140 to149 ; 150 to 159 ; 160 to 169 ; 170 to 179 ; 180 to 189 absence Africa and Arabian peninsula.
V. olivaceus laterally compressed absence presence absence nearer the tip of snout than the eyes oval or split-like dorso-laterally directed light pink or whitish absence same size than head scales ??not applicableup to 40 centimeters ; 40 centimeters and more triangular 160 to 169 ; 170 to 179 ; 180 to 189 ; 190 and more absence Asia and austral isles
V. ornatus laterally compressed absence presence absence same distance from eyes than from tip of snout well round laterally directed light pink or whitish absence same size than head scales no specific pattern or scales of head homogenous in size not applicablenot applicableup to 40 centimeters ; 40 centimeters and more triangular 160 to 169 absence Africa and Arabian peninsula.
V. prasinus group roundish absence absence absence nearer the tip of snout than the eyes well round laterally directed ; dorso-laterally directed ?presence same size than head scales specific pattern formed by one row of scales only three rows of scales between the supra-oculars not applicableup to 40 centimeters triangular 70 to 79 ; 80 to 89 ; 90 to 99 ; 100 to 109 ; 110 to 119 absence Asia and austral isles ; continental Australia
V. rudicollis laterally compressed absence presence absence same distance from eyes than from tip of snout ; nearer the eyes than the tip of snout oval or split-like laterally directed light pink or whitish absence bigger than head scales specific pattern formed by one row of scales The supra-ocular scales are surrounded by two rows of tiny scales. conical relief up to 40 centimeters ; 40 centimeters and more triangular 130 to 139 ; 140 to149 ; 150 to 159 ; 160 to 169 absence Asia and austral isles
V. salvadorii laterally compressed absence presence absence nearer the tip of snout than the eyes oval or split-like laterally directed light pink or whitish absence same size than head scales no specific pattern or scales of head homogenous in size not applicablenot applicableup to 40 centimeters ; 40 centimeters and more rectangular ?absence Asia and austral isles
V. salvator laterally compressed absence presence absence nearer the tip of snout than the eyes well round ; oval or split-like laterally directed blue, purple or black absence same size than head scales specific pattern formed by two rows of scales The supra-ocular scales are surrounded by two rows of tiny scales. not applicableup to 40 centimeters ; 40 centimeters and more triangular 130 to 139 ; 140 to149 ; 150 to 159 ; 160 to 169 ; 170 to 179 ; 180 to 189 absence Asia and austral isles
V. timorensis group roundish absence absence absence same distance from eyes than from tip of snout well round laterally directed blue, purple or black absence same size than head scales no specific pattern or scales of head homogenous in size not applicablenot applicableup to 40 centimeters triangular ?absence Asia and austral isles ; continental Australia
V. yemenensis laterally compressed absence presence absence nearer the eyes than the tip of snout oval or split-like laterally directed blue, purple or black absence same size than head scales ; bigger than head scales no specific pattern or scales of head homogenous in size not applicablehemispheric relief up to 40 centimeters ; 40 centimeters and more triangular ?presence Africa and Arabian peninsula.
Australian spiny-tailed monitors roundish presence absence absence same distance from eyes than from tip of snout ; nearer the tip of snout than the eyes well round laterally directed ; dorso-laterally directed ?absence same size than head scales no specific pattern or scales of head homogenous in size not applicablenot applicableup to 40 centimeters triangular ?absence continental Australia
V. brevicauda roundish presence ; absence absence absence nearer the tip of snout than the eyes well round laterally directed ?absence same size than head scales no specific pattern or scales of head homogenous in size not applicablenot applicableup to 40 centimeters triangular ?absence continental Australia
V. bushi + V. caudolineatus + V. gilleni roundish absence absence absence same distance from eyes than from tip of snout ; nearer the tip of snout than the eyes ; nearer the eyes than the tip of snout well round ; oval or split-like laterally directed ; dorso-laterally directed ?absence same size than head scales no specific pattern or scales of head homogenous in size not applicablenot applicableup to 40 centimeters triangular 90 to 99 ; 100 to 109 ; 110 to 119 ; 120 to 129 absence continental Australia
V. eremius roundish absence absence absence nearer the tip of snout than the eyes well round laterally directed ; dorso-laterally directed ?absence same size than head scales no specific pattern or scales of head homogenous in size not applicablenot applicableup to 40 centimeters triangular ?absence continental Australia
V. giganteus laterally compressed absence presence absence nearer the tip of snout than the eyes oval or split-like laterally directed blue, purple or black absence same size than head scales no specific pattern or scales of head homogenous in size not applicablenot applicableup to 40 centimeters ; 40 centimeters and more triangular ?absence continental Australia
V. glauerti roundish absence absence absence nearer the tip of snout than the eyes well round laterally directed blue, purple or black absence same size than head scales no specific pattern or scales of head homogenous in size not applicablenot applicableup to 40 centimeters triangular ?absence continental Australia
V. glebopalma roundish absence absence presence nearer the tip of snout than the eyes well round laterally directed ; dorso-laterally directed ?absence same size than head scales no specific pattern or scales of head homogenous in size not applicablenot applicableup to 40 centimeters triangular ?absence continental Australia
V. kingorum roundish ; laterally compressed absence presence ; absence absence same distance from eyes than from tip of snout well round dorso-laterally directed ?absence same size than head scales no specific pattern or scales of head homogenous in size not applicablenot applicableup to 40 centimeters triangular ?absence continental Australia
V. mertensi laterally compressed absence presence absence nearer the tip of snout than the eyes well round dorsally directed ; dorso-laterally directed ?absence same size than head scales no specific pattern or scales of head homogenous in size not applicablenot applicableup to 40 centimeters ; 40 centimeters and more triangular ?absence continental Australia
V. mitchelli laterally compressed absence presence absence same distance from eyes than from tip of snout ; nearer the tip of snout than the eyes well round ; oval or split-like dorso-laterally directed ?absence same size than head scales no specific pattern or scales of head homogenous in size not applicablenot applicableup to 40 centimeters triangular 90 to 99 ; 100 to 109 ; 110 to 119 ; 120 to 129 ; 130 to 139 absence continental Australia
V. pilbarensis roundish absence absence absence same distance from eyes than from tip of snout ?dorso-laterally directed ?absence same size than head scales no specific pattern or scales of head homogenous in size not applicablenot applicableup to 40 centimeters triangular ?absence continental Australia
V. semiremex laterally compressed absence absence absence same distance from eyes than from tip of snout ; nearer the tip of snout than the eyes well round laterally directed ?absence same size than head scales no specific pattern or scales of head homogenous in size not applicablenot applicableup to 40 centimeters triangular ?absence continental Australia
V. spenceri laterally compressed absence presence absence nearer the tip of snout than the eyes well round laterally directed ; dorso-laterally directed ?absence same size than head scales no specific pattern or scales of head homogenous in size not applicablenot applicableup to 40 centimeters ; 40 centimeters and more triangular 150 to 159 ; 160 to 169 ; 170 to 179 absence continental Australia
V. tristis roundish absence absence absence nearer the tip of snout than the eyes well round laterally directed light pink or whitish absence same size than head scales no specific pattern or scales of head homogenous in size not applicablenot applicableup to 40 centimeters triangular ?absence continental Australia
V. varius laterally compressed absence presence absence nearer the tip of snout than the eyes well round laterally directed ; dorso-laterally directed light pink or whitish absence same size than head scales no specific pattern or scales of head homogenous in size not applicablenot applicableup to 40 centimeters ; 40 centimeters and more triangular ?absence continental Australia