A single pair of teeth are positioned back from the apex of lower jaw about 1/3 the total length of the mouthline. The root base is square and not inclined in the jaw.
Erupted teeth in adult males are covered by gum tissue, with only the tip of tooth exposed. Teeth of females and juveniles do not erupt.
In lateral profile, the anterior margin is relatively straight for a majority of its length and concave distally; the posterior tooth margin is weakly convex.