Semnopithecus siamensis (Müller & Schlegel, 1841) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Chordata class Mammalia order Primates family Cercopithecidae genus Presbytis species Presbytis siamensis Name Homonyms Semnopithecus siamensis (Müller & Schlegel, 1841)