The Adaro, also known as Ri, is an aquatic sea cryptid that is from Papua New Guinea. The Adaro makes its first and only appearance in the video game, The Secret Saturdays: Beast of the Fifth Sun.
The Adaro
It has fins on the end of each leg, a shark fin atop of its head, visible gills, and a sharp horn on its nose. It's said to be able to leap out of the water (similar to that of a flying fish) to catch birds.
This cryptid is also said to be able to travel through the different worlds from waterspouts.