Ring-tail
As Steven said, they have ring-tailed and red-ruffed lemurs. They're in the conservation outpost near the gorillas, in the tunnel from there to the meerkats/rhinos. https://www.riverbanks.org/animals/conservation-outpost/
They definitely have ring tails. They're located past the kangaroo area.
I dont know a lot about lemurs, but I think they have ring tail and a red one
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