The
Javan slow loris (
Nycticebus javanicus) is a
strepsirrhine primate and a
species of
slow loris native to the western and central portions of the island of
Java, in
Indonesia. Although originally described as a separate species, it was considered a
subspecies of the
Sunda slow loris (
N. coucang) for many years, until reassessments of its
morphology and genetics in the 2000s resulted in its promotion to full species status. It is most closely related to the Sunda slow loris and the
Bengal slow loris (
N. bengalensis). The species has two forms, based on hair length and, to a lesser extent, coloration.