Species: Hylobates klossii
Common Name: Kloss’s Gibbon, Mentawai Gibbon.
Depending on who you talk to there four genera (Nomascus, Symphalangus, Bunopithecus, and Hylobates) within the family Hylobatidae. There are a number of differences between the genera (anatomical, pelage, and chromosomal). Today’s primate is an interesting member of Hylobates.
Species: Hylobates syndactylus
Common Name: Siamang
Siamangs are part of a group called the lesser apes. They are native to Malaysia and Sumatra and are sympatric with the white-handed gibbon (H. lar).