Very lucky of you to see a slow loris very clearly! I'm aware that Prigen was reported to have had kept N. coucang and N. hilleri, but not really N. hilleri.
@Rizz Carlton Information on individuals was very spotty, since the main keeper of the lorises was on break during my visit. They previously had 3 individuals on display, two differing species and a hybrid born at the zoo (of which species is uncertain). The hybrid passed shortly before our visit.
