It was an African Bushbaby. Unlike a slow loris, it had large ears, and also, unlike an Asian Tarsier, it had a full bushy tail. I matched its look with a photo of a Bushbaby in my Brittanica Encyclopedia. My friend's uncle worked on a ship that plied between China (then it wasn't open door like now) and Africa, he told stories of places like Adis Ababa, Dar-Es-Salam way before CNN news was available on TV. He told us not to consider a career at sea because the times were changing - container vessels load and unload too fast for crew to have a relaxing time on shore, he was an old salt. That's why me never considered Marine Engineering at Poly when I came of age.
Cheers!