Tunomon

Tunomon (ツノモン)
A tiny Digimon that hardened one of the feelers on its head as Punimon. From Punimon, it has accomplished a more animal-like evolution, and is covered in tufty body hair. It is still at the peak of playfulness, and it has a prank-loving personality, but its combat instinct has not awakened.

Etymology
Tuno: a Nihon-shiki romanization of 角（ツノ）, meaning "horn".