''Neosilurus equinus'', the southern tandan, is a species of fish in the eeltail catfish family. It occurs in torrents in the
New Guinea Highlands
The New Guinea Highlands, also known as the Central Range or Central Cordillera, is a long chain of mountain ranges on the island of New Guinea, including the island's highest peak, Puncak Jaya, Indonesia, , the highest mountain in Oceania. The r ...