Presbytis melalophos siamensis Müller and Schlegel 1841 (Sumatran surili)
Mammalia - Primates - Cercopithecidae
Belongs to Presbytis melalophos according to D. A. Hooijer 1962
Sister taxa: Presbytis melalophos chrysomelas, Presbytis melalophos femoralis, Presbytis melalophos ferruginea, Presbytis melalophos fuscomurina, Presbytis melalophos melalophos, Presbytis melalophos sumatrana, Presbytis melalophos sumatranus
Ecology: arboreal frugivore-folivore
Distribution: there are no occurrences of Presbytis melalophos siamensis in the database