Wikipedia:List of hoaxes on Wikipedia/Horng fong

The horng fong is a legendary reptilian creature believed by some to be a pygmy ceratopsian still alive in the jungles of the Mekong Delta.

Evidence
Ivan T. Sanderson and Bernard Huevelmans both collected first hand accounts of the creature which some native villagers described as a "large turtle with a horned shell on its head".

Very little anecdotal evidence and little to no physical evidence has ever been provided to prove its existence. According to the book Animal Tales - An Anthology of Animal Literature footprints were photographed in the 1930s. Researchers dismissed these as crocodile prints and the photos soon vanished. A few attempts have been made by westerners to track the creature but there have been no sightings outside of the local population with the exception of two French missionaries in 1908 who saw several crossing a river and described them as "comme un paquet de loup, mais fait du porc a classé des crocodiles" (like a wolf pack made up of pig-like crocodiles). With no recent sightings and very little information, the horng fong has as little credibility as other tales of living dinosaurs and is most likely to be just an actual species of turtle, possibly now extinct.