What kind of dog is in riddick?

In the movie "Riddick," the character Riddick has a creature known as a "Necromonger" dog, often referred to as a "dog-like creature." This fictional creature is a blend of various canine traits and is designed to be a loyal and formidable companion. It exhibits a strong bond with Riddick and plays a role in his survival throughout the film. The design and behavior of this creature emphasize the harsh and ruthless environment of the universe in which Riddick exists.