Axel

Axel (nicknamed Elephant after his species) is Xilo's totem.

http://www.mediatoon-distribution.com/en/catalog/267/maxi/ calls him "elephant of rock"

In Le jour des totems, Xilo mentions "T'es vraiment unique, Axel." causing the elephant to respond "Bien quoi", indicating that this is actually his name and that "Elephant" is simply how the rude octopus girl totem of Mara (named Pieuvre) refers to him.