parent_taxon black tree monitor
___MASK46___ is a superfamily of lizards , including the well - known family Varanidae ( the monitors or goanna ). Also included in the ___MASK46___ are such extinct marine and semi - aquatic forms as mosasaurs and dolichosaurus , the venomous helodermatids ( Gila monsters and beaded lizards ), the Lanthanotidae ( earless monitor lizards ), and the extinct Necrosauridae . ___MASK87___ is a family of lizards of the superfamily ___MASK46___ . The family , a group of carnivorous and frugivorous lizards , includes the extinct Megalania ( the largest known ___MASK81___ ), the Komodo dragon ( the largest living ___MASK81___ ), and the crocodile monitor . The ___MASK87___ contain the living genus " Varanus " and a number of extinct taxa . Their closest living relatives are the anguid and helodermatid lizards . Indonesia ( or ; Indonesian : ), officially the Republic of Indonesia , is a unitary sovereign state and transcontinental country located mainly in Southeast Asia with some territories in Oceania . Situated between the Indian and Pacific oceans , it is the world ' s largest island country , with more than seventeen thousand islands . At , Indonesia is the world ' s 14th - largest country in terms of land ___MASK28___ and world ' s 7th - largest country in terms of combined sea and land ___MASK28___ . It has an estimated population of over 260 million people and is the world ' s fourth most populous country , the most populous Austronesian nation , as well as the most populous Muslim - majority country . The world ' s most populous island of Java contains more than half of the country ' s population . The Komodo dragon (" Varanus komodoensis "), also known as the Komodo monitor , is a large species of ___MASK81___ found in the Indonesian islands of Komodo , Rinca , Flores , Gili Motang , and Padar . A member of the ___MASK92___ family Varanidae , it is the largest living species of ___MASK81___ , growing to a maximum length of in rare cases and weighing up to approximately . Megalania (" Megalania prisca " or " Varanus priscus ") is an extinct giant goanna or ___MASK92___ . They were part of a megafaunal assemblage that inhabited southern Australia during the Pleistocene . The youngest fossil remains date to around 50 , 000 years ago . The first aboriginal settlers of Australia might have encountered them . Lizards are a widespread group of squamate reptiles , with over 6 , 000 species , ranging across all continents except Antarctica , as well as most oceanic island chains . The group , traditionally recognized as the suborder Lacertilia , is defined as all extant members of the ___MASK84___ ( reptiles with overlapping scales ) that are neither sphenodonts ( i . e ., tuatara ) nor snakes  they form an evolutionary grade . While the snakes are recognized as falling phylogenetically within the ___MASK8___ clade from which they evolved , the sphenodonts are the sister group to the squamates , the larger monophyletic group , which includes both the lizards and the snakes . The Aru Islands ( also Aroe Islands or Kepulauan Aru ) are a group of about ninety - five low - lying islands in the Maluku province of eastern Indonesia . They also form a regency of Maluku province , with a land ___MASK28___ of 6 , 269 square kilometres . The black tree monitor or Beccari ' s monitor ( Varanus beccarii ) is a relatively small member of the ___MASK87___ family , growing to about 90 -- 120 cm ( 35 -- 47 in ) in length . They inhabit the Aru Islands off New Guinea , living in an arboreal habitat . Their skin color is completely black , lending them their name .