Decapus

Decapus
Decapuses are carnivorous, solitary hunters that swing through trees, scooping up prey with their 10-foot-long, suckered tentacles. Decapuses also use their tentacles to climb walls and ceilings.
After securing a high vantage point, a decapus hangs by one tentacle and attacks with the other nine. On the ground, a decapus is slower and less dangerous. It must use half of its tentacles to support its weight upright, leaving five tentacles with which it can attack and defend itself.
Marine Decapus
A marine decapus is similar to its land-dwelling cousin, except that it gains a swimming speed of 30 feet and can breathe only underwater.