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Skulls of various varanoids A baby monitor lizard rests in the crevice of a tree. Monitor lizards are lizards in the genus Varanus, the only extant genus in the family Varanidae. They are native to Africa, Asia, and Oceania, and one species is also found in the Americas as an invasive species. [1] About 80 species are recognized.
The Gray's monitor (Varanus olivaceus) is a large (180 cm, >9 kg) monitor lizard known only from lowland dipterocarp forest in southern Luzon, Catanduanes, and Polillo Island, all islands in the Philippines. [1] It is also known as Gray's monitor lizard, butaan, and ornate monitor. [3] It belongs to the subgenus Philippinosaurus. [4]
Varanus spinulosus, the Solomon Island spiny monitor, Isabel monitor, [1] [2] or spiny-neck monitor, [3] is a species of monitor lizard. It is endemic to the Solomon Islands archipelago and is also known from Santa Isabel Island , San Jorge Island ( Solomon Islands ) and Bourgainville Island ( Papua New Guinea ).
(Despite the caption, it is a peacock monitor, as it is from Rote Island) The peacock monitor is one of the smaller monitor lizards, usually reaching a length of 60 cm (23.5 in). [3] It is similar to the Timor monitor (V. timorensis), with some differentiation in the underside coloring and patterns. The coloring patterns fade as these lizards ...
The quince monitor's nostril is situated closer to the tip of its snout than to its eye. This species can reach 80–120 cm (2.6–3.9 ft) in total length. [ 5 ] A 20 year old male housed at the Cologne Zoo reached a total length of 129 cm, before suddenly dying of what was likely sepsis caused by an earlier bacterial infection.
Varanus macraei, the blue-spotted tree monitor or blue tree monitor, is a species of monitor lizard found on the island of Batanta in Indonesia. It is named after herpetologist Duncan R. MacRae, founder of the reptile park Rimba on Bali .
The black rough-necked monitor (V. rudicollis) was previously in the closely related subgenus Empagusia, but genomic analyses show it is actually the basalmost member of Soterosaurus, having split from the V. salvator species complex (which is composed of all the other Southeast Asian water monitor species) 14 million years ago during the middle Miocene.
[7] [8] [9] Large mature males can attain weights of 15 to 17 kg (33 to 37 lb), which would make it slightly smaller than the Nile monitor by maximum size. [10] It is the second longest African lizard after the Nile monitor. Mature specimens typically measure 0.85 to 1.5 meters (2 ft 9 in to 4 ft 11 in).