Kongamato

[…] the kongamato like the olitiau is in the habit of diving at men crossing its territory — perhaps trying to drive them away […]

[…] swamp conceals a terrifying "lizard bird" called the kongamato.

When crossing rivers, some of them carried amulets that would protect them from a Kongamato.

Also described as being like a giant bat, the Kongamato has large teeth, red leathery skin, and a wingspan of four to seven feet.