This slow loris is notable for its large forward-facing eyes. It moves through trees at night and eats floral nectar, sap, fruit, and small insects.
It has a round head, short muzzle, and large forward-facing eyes. Dark rings stand out against greyish to reddish-brown fur, with a dark stripe along the back.
In May 2006, researchers measured 34 live slow lorises rescued from the wildlife trade in Java and kept at a primate centre in Jakarta. Their places of origin were unknown. The team recorded 32 body and coat traits and compared them with earlier species descriptions to examine the forms represented among the rescued animals.
A statistical analysis supported four morphological groupings. One was classified as the Sunda slow loris, Nycticebus coucang, and another as the Javan slow loris, N. javanicus. The other two resembled forms then called N. hilleri and N. ornatus. The paper linked careful identification with the practical work of caring for rescued slow lorises and planning conservation.
An extinction-risk assessment has not been added yet.
Analysis of 34 rescued lorises supported four forms, including one classified as Nycticebus coucang. The authors linked identifying each form with care in rescue centres and conservation planning.