It was later classified as a subspecies of the spectral tarsier T. spectrum by Hill and remained so until recently.

The Spectral Tarsier (Tarsius spectrum) is categorized as "lower risk, not threatened."

It was horrible. . . . "Have you ever seen a lemur or a spectral tarsier?

(The tarsier's eyes are so large for its tiny face that its silent, staring appearance at night has given it the name "spectral tarsier.")

At one point the taxon was downgraded to a junior synonym of the spectral tarsier (T. tarsier).

The spectral tarsier (Tarsius tarsier) is a species of tarsier found in Indonesia.

The Tangkoko Nature Reserve is a refuge for such species as the Celebes Crested Macaque and spectral tarsier.

The average lifespan in the wild is thought to be 10 years, however in captivity the closely related Horsfield's tarsier can live up to 17 years and it is thought the spectral tarsier may have a similar longevity.

The pygmy tarsier (Tarsius pumilus), also known as the mountain tarsier or the lesser spectral tarsier, is a nocturnal primate found in central Sulawesi, Indonesia, in an area with lower vegetative species diversity than the lowland tropical forests.

From the bald uacari of South America, with its scarlet face and hairless head, to the spectral tarsier of Sulawesi, Indonesia, which averages a mere five inches in height, Mr. Rowe describes the diet, method of locomotion, habitat and behavior of the primates that he studied and photographed.