- Order: Leviathan
- Suborder: Bottom Feet Wyvern
- Infraorder: Latent Mouth Wyvern
- Family: Nibelsnarf
Niblesnarf eat anything that they can fit into their mouth, much like Gobul. They mainly feed on Rhenoplos and Delex. High on the food chain, only top predators like the Deviljho, Tigrex, Sand Barioth, and Rathian dare to attack it. It will may also compete with the Tigerstripe Zamtrios and Cephadrome for food, as they occupy the same niche. Nibelsnarf are likely to avoid large dangerous herbivores such as Monoblos, Diablos, and Rust Duramboros.
It has the remarkable ability to swim in sand, shared only with a few monsters, and its streamlined body helps it move through it at great speeds. It has a huge mouth for eating its prey such as Rhenoplos in one bite, like the Gobul. It locates its prey with hearing. It shares this trait with the Agnaktor, which is also a land dwelling Leviathan. It is possible that the two developed this ability because they spend most of their time underground. It spits sand at predators that try to attack it. Its eyes are on top of its head, so it can see its prey easier when lurking in the sand. They also have salamander-like "gills" which it uses to filter out sand and absorb minerals in the sand. It uses this clearing of the sand as an attack, as the sand shoots from the gills at a high enough speed to hurt individuals caught in the blast. Niblesnarf seem to have very strong stomachs, capable of withstanding a bomb exploding in it. Inside the massive mouth of this predator is an enlarged uvula that stores nutrients. This organ is essential to the leviathan's survival within the arid Sandy Plains.
Niblesnarf are gluttons that will attempt to eat anything. These monsters have been known to accidentally eat barrel bombs that are placed by hunters and even an entire merchant cart.