The zoo only has Dendrobates tinctorius (2 forms), auratus and leucomelas on exhibit. I wasn't aware of them of A. varius it would be nice if they went on exhibit too. The article said the frogs are going in the front lobby so I assumed the dart frogs were being replaced as that's where they are on exhibit. Can varius and zeteki be kept together?
The other 6 monkey species are
Bolivian Gray Titi Monkey
Cotton-top Tamarin
Goeldi's Marmoset
Golden-headed Lion Tamarin
Pygmy Marmoset
Emperor Tamarin
The zoo has a very nice collection of New World monkeys then! As for Atelopus, I've never heard of them being kept together and I imagine they run a hybridization risk but I don't know.
~Thylo