Murung River Bear
The Murung River Bear is a cryptid reported from the Murung River in Borneo, Indonesia. They are described as bear-like creatures that gather along the river once a year to feed on berries, while otherwise they live in the jungle. They can swim and have been known to attack boats and claw humans to death.
Citations:
Eberhart, George M.. Mysterious Creatures: A Guide to Cryptozoology. United Kingdom, ABC-CLIO, 2002.