Mama Saw

Mama Saws are aquatic enemies in Donkey Kong Country: Tropical Freeze. If they see you, they will attack you by trying to ram into you with their saw- like nose. They can be killed by performing a corkscrew attack on them from behind.

Appearance

They basically resemble a short, fat, orange sawfish, with a yellow ring around their nose. They are likely female due to that they have the word "Mama" in their name.

Trivia

In real life, sawfish's saws are horizontal, whereas Mama Saw's saw is vertical.
This would make more sense due to that you wouldn't be able to see the saw horizontally, as this game is side scrolling.
It is also possible that Mama Saw is a sawshark.