(Hated Trope) Anthropomorphic Animal Characters who do not have Tails like their real-life species counterpart.

King K. Rool (In the 1996 Donkey Kong Country animated series)

Classic Foxy the Pirate (Five Nights at Freddy's)

Mostly everyone (Blacksad)

Reminder: This is only for fictional animal characters who are based on species that possess a tail while the actual character does not, the ones who are based on species that don't have visible tails like Gorillas and Crabs do not count.

Oh, and as for Foxy, he may be an animatronic, but he is still designed to be an anthro fox who walk on 2 legs, at least for his persona.