This is Black & White x Red. There were a lot of these around at one time before they were phased out in favour of pure Red and Black & White. Monkeyworld had a very active and noisy group which used to live in a well wooded area and spent a lot of time up in the trees.
Both London and Jersey bred quite a few . Many years ago one of the highlights of my visit to the Clore Pavilion was to see the then very rare ruffed lemurs , one red , the other black and white , one of which I think was collected by David Attenborough . They produced one offspring then one parent died , the many hybrids produced after that were from parent ( ? female ) and offspring pairing . Amongst the offspring were some curious hairless examples - I saw one of these behind the scenes at the Sobell pavilion .
The first pure specimens were imported by Jersey from San Diego I think , a pair of each .
Many years ago one of the highlights of my visit to the Clore Pavilion was to see the then very rare ruffed lemurs , one red , the other black and white , one of which I think was collected by David Attenborough . They produced one offspring then one parent died , the many hybrids produced after that were from parent ( ? female ) and offspring pairing . Amongst the offspring were some curious hairless examples - I saw one of these behind the scenes at the Sobell pavilion .
The Black & White one was the female and was the one presented by DA. It was alone for many years( the only Ruffed Lemur in the UK!) but was usually invisible/asleep, at least before the Red one came, from Paris. It was the B/W female that died after one breeding, so the hybrids were from the (Red) male parent/offspring or between the offspring. I remember the hairless ones too.
Not sure if Jersey's original hybrids came from ZSL, or were created from animals of their own breeding?
I recall seeing hairless youngsters several times in the Clore Pavilion; I too was taken behind the scenes in the Sobell Pavilion several times, in the early 1980s, to see an adult hairless specimen. (I’m sure you were with me “Bele” on at least one of these occasions around 30 years ago.)
A little more detail about the London Zoo animals may be of interest:-
David Attenborough presented the female ruffed lemur to London Zoo in 1960 after his “Zoo Quest to Madagascar” television programme. The male ruffed lemur was received on loan from the Jardin des Plates Menagerie (Paris) in 1969.
This pair produced a youngster in 1972; I think this was the first ruffed lemur to be born in the UK. As has already been mentioned it was a red ruffed lemur x black & white ruffed lemur hybrid (although the two forms were considered conspecific in those days).