Tarsius tarsier

The spectral tarsier (Tarsius spectrum, also called Tarsius tarsier) is a species of tarsier found on the island of Selayar in Indonesia. It is apparently less specialized than the Philippine tarsier or Horsfield's tarsier; for example, it lacks adhesive toes. It is the type species for the genus Tarsius. While its range used to also include the population on nearby southwestern Sulawesi, this population has been reclassified as a separate species, Tarsius fuscus. Some of the earlier research published on Tarsius spectrum refers to the taxon that was recently reclassified and elevated to a separate species, the Gursky's spectral tarsier (Tarsius spectrumgurskyae). When considered to include Tarsius fuscus, females of the species weigh between 102 and 114 grams (3.6 and 4.0 oz) while males are 118 to 130 grams (4.2 to 4.6 oz). It has a head-body length of 9.5 to 14 centimetres (3.7 to 5.5 in) and its tail length ranges from 20 to 26 centimetres (7.9 to 10.2 in). 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 similar longevity.