Abstract
Proceding with the morphometric analysis of the Primate chromosomes, in this paper the chromosomes of the genera Hylobates, Presbytis and Colobus are examined. All the species studied have a diploid number of chromosomes of 2n = 44. The comparison of the total lengths of the karyotypes has not shown any significant differences among these genera. The comparative morphometric analysis of each single chromosomes has shown some similarities among the chromosomes of the different genera.