[Morphology of the dorsal boundary of the hard palate in primates].

A comparison of the dorsal boundary of the hard palate among various primate species reveals three variations of form. The tendency towards intraspecific variation, particularly among the Prosimians and to a lesser degree in Simians, eliminates the possibility of a taxonomic interpretation. Tupaias show morphological characteristics which are considerably different from those of primates. The variation observed in this region is viewed in association with different functional parameters which may depend on the degree of prognathism.