Mogo's red-handed tamarins were the remnants of a successful breeding group that came from Perth Zoo - last at Perth mid '90s. The original animals (probably a pair, but don't quote me on it) came from Scansen (spelling isn't correct) in Sweden.
Interestingly they proved to be very aggressive towards cotton-tops when mixed in a walk-through enclosure. One of the keepers involved at the time told me that it was akin to 'hunting'.