Camouflages with octopus like abilities

Parandrus

It is placed in Ethiopia, given the size of an ox, the branching horns of a stag, the coat of a bear, and a deep colour; and its distinguishing property is that when frightened it changes to match its surroundings, becoming white like snow, green like foliage, or whatever else is near. This puts it in a small group of bestiary animals defined by concealment rather than by ferocity or virtue.

Lusca

It is said to lurk in the depths of blue holes, using its octopus-like camouflage abilities to blend seamlessly with the dark waters.