 The sizable mouth is broadly arched, with short furrows at the corners.Thirty-one to 34 tooth rows are in the upper jaw and 30–35 tooth rows are in the lower jaw; the upper teeth are upright and triangular with serrated edges, while the lower teeth are narrower and straight to slightly curved.In the largest individuals, the first few lower teeth from the jaw median are spear-shaped with serrations near the tip.