The snub-nosed monkey is in an endemic primate genus but is related to Borneo's proboscis monkey (Nasalis larvatus).    From Wordnik.com.  [Mentawai Islands rain forests] Reference

The mangroves of Borneo are home to the proboscis monkey (Nasalis larvatus), which is one of the few large mammals limited to mangrove and peat swamp forest habitats.    From Wordnik.com.  [Sunda Shelf mangroves] Reference

Other famous flagships include the Proboscis monkey (Nasalis larvatus, EN), found only on Borneo, and two rhinoceros species, which are the most threatened and least known of the five surviving rhino species on Earth.    From Wordnik.com.  [Biological diversity in Sundaland] Reference

They are home to thirteen primate species: three apes (the orangutan and two gibbon species), five langurs, two macaques, the tarsier (Tarsius bancanus), the slow loris (Nycticebus coucang), and the endangered proboscis monkey (Nasalis larvatus).    From Wordnik.com.  [Borneo lowland rain forests] Reference

On the banks were an abundance of monkeys — the common Macacus cynomolgus, a black Semnopithecus, and the extraordinary long-nosed monkey (Nasalis larvatus), which is as large as a three-year old child, has a very long tail, and a fleshy nose longer than that of the biggest-nosed man.    From Wordnik.com.  [The Malay Archipelago] Reference

The Nasalis (Compressor naris) consists of two parts, transverse and alar.    From Wordnik.com.  [IV. Myology. 4c. The Muscles of the Nose] Reference

The Nasalis depresses the cartilaginous part of the nose and draws the ala toward the septum.    From Wordnik.com.  [IV. Myology. 4c. The Muscles of the Nose] Reference

Finally, it emerges, as the external nasal branch, between the lower border of the nasal bone and the lateral nasal cartilage, and, passing down beneath the Nasalis muscle, supplies the skin of the ala and apex of the nose.    From Wordnik.com.  [IX. Neurology. 5e. The Trigeminal Nerve] Reference

Just above those of the incisor teeth is a depression, the incisive fossa, which gives origin to the Depressor alæ nasi; to the alveolar border below the fossa is attached a slip of the Orbicularis oris; above and a little lateral to it, the Nasalis arises.    From Wordnik.com.  [II. Osteology. 5b. 2. The Maxillæ (Upper Jaw)] Reference

A black Semnopithecus, and the extraordinary long-nosed monkey (Nasalis larvatus), which is as large as a three-year old child, has a very long tail, and a fleshy nose longer than that of the biggest-nosed man.    From Wordnik.com.  [The Malay Archipelago, the land of the orang-utan and the bird of paradise; a narrative of travel, with studies of man and nature — Volume 1] Reference

Nasalis.    From Wordnik.com.  [IV. Myology. 4c. The Muscles of the Nose] Reference

Nasalis, Semnopithecus, 139.    From Wordnik.com.  [On the Genesis of Species] Reference