Ruktoi

''This creature surges from beneath the silt with massive sweeps of its four webbed limbs and thrashing tail. A broad, flat-bodied quadruped with silt-grey skin and a fanged and armored head, the beast has something of the salamander about it, despite the fact that it is almost two-thirds the length of a mekillot.''

Combat
Ruktoi hunt their prey through the silt using scent, following trails through the dust until they close in for the kill. Any prey they cannot catch or defeat through straightforward means they will ambush, using their grey coloration to aid in their concealment.

Once on the attack, a ruktoi bites ferociously and (if faced with air-breathing prey) seeks to grapple and pull its targets beneath the silt to drown. If a ruktoi loses more than half its total hit points it will flee, kicking up a cloud of silt to cover its tracks.

Description
The ruktoi is a solitary predator that roams the silt, hunting less mobile prey and ambushing those it cannot catch. As the ruktoi's natural form cannot support itself in the silt, it possesses an innate ability to levitate, so long as it is in contact with silt, and uses this ability to glide through the dust in search of its prey.

A ruktoi is twenty feet long and has a broad, salamander-like body with four sturdy limbs and a tail. Each limb ends in three webbed digits and the tail is a horizontal fluke with a smaller dorsal fin just in front of it. Some of these creatures are captured and domesticated, being used as transportation across the silt, beasts of burden or similar. Ruktoi used for such purposes are trained to swim just below the surface of the silt, allowing passengers and cargo to remain in the open air.

Ruktoi are solitary, only congregating to mate. Females lay their eggs in spreads of 10-30 eggs and allow these to sink to the bottom. Surviving young mature in six weeks.

The creatures have no audible language of their own, instead communicating through body language and pheromones.