Creature:Kfaux

Kfaux were a species of creature indigenous to the beaches and coastal forests of their homeplanet of Gwoblob. Closely related to the Kfa yet predators of the same, they developed a sort of reverse batesian mimicry to be able to hide amongst the ranks of the Kfa, and once an attack would be least expected, they pounce on a target to consume. They have adapted to keep one arm held up just like the Kfa though they do not use it at all; as such this limb has atrophied, but not so much for it to be extremely obvious to their prey. When the Kfa went extinct after giving way to the Kgolo, the Kfaux went right along with it, unable to mimic the wiser descendant of their former foe.

Sporepedia Description
"The Kfaux were a species that used visual mimicry to hunt its prey, the Kfa. They were a poisonous species, which kept other predators from hunting Kfa, leaving them to the Kfaux."