According to the IUCN red list, the Kandyan dwarf toad (Adenomus kandianus) is extinct. However, it got recently rediscovered on an expedition to Sri Lanka's Peak Wilderness Sanctuary in 2009. The species was last seen alive in 1876 and is known from only two samples deposited to The British Museum.
Writing in the journal Zootaxa, the researchers who rediscovered the toad explain that they came across it during a night-time sampling session on rocks close to a fast-flowing stream. It was discovered among a group of torrent toads (Adenomus dasi), which it strongly resembles - perhaps why several previous extensive searches of the region failed to identify it. However, the researchers write that the Kandyan dwarf toad can be easily recognised by its fully webbed toes and the presence of large warts on its back.