Mryskir

A Collaboration monster created by Subnauticatracer and MC Goji, Mryskir are 5 star Fanged Wyverns distantly related to the Odogaron. Their bodies are covered in a slimy substance similar in composition to mud, with particularly venomous and poisonous properties

Phsyiology
Mryskir's bodies are concealed by a slimy substance used to protect themselves and to prevent nemocytes found on 2 finger width tentacles found on the back of their heads. Their teeth are exaggerated to such an extent they can't close their mouths at all, the angler-like composition of them making them effective at trapping prey.

It's difficult to define the full skeleton of a Mryskir, seeing how it's skeleton has the capability to collapse should it need to move through caves effectively, and it's exact musculature can only be guessed to be stockily built on the thigh and calf, with flexible tendons as it can move at incredibly high speeds. It's eyes are completely white, suggesting blindness, and pipe-ish tentacles connect and hold the body together.

Their claws, unlike their body, appear to have an sandstone-ish coloring. They're sharp enough to slice right through the hardened skin of an Apceros, pop a Paolumu like a balloon, and be used in Longsword blades.