 There are currently eight recognized species . The pygmy slow loris ( N. pygmaeus ) occurs east of the Mekong River in Yunnan , Laos , Vietnam , and Cambodia . The Bornean slow loris ( N. menagensis ) , found on Borneo and nearby islands , including the Sulu Archipelago , and in 2012 was split into four distinct species ( adding N. bancanus , N. borneanus , and N. kayan ) . The Javan slow loris ( N. javanicus ) is only found on the island of Java in Indonesia . The Sunda slow loris ( N. coucang ) occurs on Sumatra and the Malay Peninsula , including Singapore and southern Thailand ( the Isthmus of Kra ) . The Bengal slow loris ( N. bengalensis ) has the largest distribution of all the slow lorises and can be found in Bangladesh , Cambodia , southern China , Northeast India , Laos , Burma , Thailand , and Vietnam . 
