Hylobates concolor leucogenys
White-cheeked gibbons have their color depending on whether they are male or female: males are black with white cheeks (leucogenys = white-bearded), while mature females are beige-white, like the lady of our picture (Cincinnati zoo, May 2001).
Gibbons are sometimes called lesser apes, being closer phylogenetically to the great apes, but smaller in size.
Family Hylobatidae
Order Primates
Subclass Eutheria
Class Mammalia
Subphylum Vertebrata
Phylum Chordata
Kingdom Animalia
Life on Earth
Index