The representative of the first premolar is minute and soon shod.
In the Hapalidae, as in the Cebidae, there is a third premolar, but the molars are reduced to 2/2.
There is but one incisor, but the premolar and molar series are complete.
It has lost only one premolar, and has therefore forty teeth in all.
The third premolar is lacking from each side of both the upper and ...