Trogs & Kobolds
These two reptilian races appear to be the vile counterparts of humans and dwarves. Their subterranean lifestyle and the fact that don't think twice about eating carrion and similar, less attractive, sources of food has ensured their survival.

Troglodytes
Troglodytes are a warlike race of carnivorous reptilian humanoids that dwell in natural subterranean caverns and in the cracks and crevices of mountains.

Troglodytes (or trogs) look somewhat humanoid standing about 6 feet tall and weighing about 180 pounds. They have spindly but muscular arms and walk erect on their squat legs, trailing a long slender tail. Their heads are lizard-like and crowned with a frill that extends from the forehead to the base of the neck. Their eyes are black and beady and very sensitive to even the dimmest light.

kobolds
Kobolds are short, reptilian humanoids with cowardly and sadistic tendencies. They barely clear 3 foot in height and have a scaly skin that ranges from dark rusty brown to a rusty black color. Their eyes glow like a bright red spark and they have two small horns ranging from tan to white. Because of their fondness for wearing raggedy garb of red and orange, non-prehensile rat-like tails, and their language (which sounds like small dogs yapping), these fell creatures are not often taken seriously. This is often a fatal mistake, for what they lack in size and strength they make up in ferocity and tenacity.

Kobolds like to attack with overwhelming odds (at least two to one) or trickery; should the odds fall below this threshold, they usually flee. Whenever they can, kobolds set up ambushes near trapped areas. They aim to drive enemies into traps, where other kobolds wait to pour flaming oil over them, shoot them, or drop poisonous vermin onto them.