mammal. Three incisors bite against the three of the upper jaw. Then
comes a canine, four premolars, and three molars, the first of which is
blade-like (sectorial tooth), and bites against the similar sectorial
tooth (last premolar) of the upper jaw. The third molar is small. The
arrangement of tooth is indicated in the following dental formula:--
I. 3.3/3.3, C. 1.1/1.1, P.M. 4.4/4.4, M. 2.2/3.3