Trapmaw

The Trapmaw is a species of grub-dog that burrows underground with its mouth wide open and snaps its jaws shut on anything that steps on it.

=In fanon games=

In Pikmin Eco
The Trapmaw is an elusive, cave-exclusive creature in Pikmin Eco. Despite being radically different from most of its relatives, it is a species of grub-dog. It is a highly bulbous creature with four stubby legs, and a mouth making up over half of its body. As the name suggests, it is an ambush predator and remains buried underground with its mouth wide open like a trap. If something, such as a Pikmin, leader, or even a small enemy, is caught in the center of its mouth, it will tremble, and then after a second, clamp its mouth shut on anything that's still there. However, some treasures are found with the Trapmaw underneath them, yet they don't trigger its clamping response. Due to this nature, it is comparable to the Pearly Clamclamp.