One more picture to spark a debate :D Is it a Goodman's? Is it a Ganzhorn's? I would love to print this one as a postcard, but the species ID is really making me desperate :D
On my visit the Goodman's was in an enclosure when you first enter the main room on your left in the corner. I think there was also one in that enclosure vs two Ganzhorn's on-exhibit. IIRC there were more Goodman's elsewhere in the bts area.
Whatever it is, it might merit being switched into the Prosimian photo thread in place of whichever species it is as it's probably the best shot we have of either.
@TeaLovingDave feel free to add it there I'll try to message the keeper if she remembers what was the off-show cage setup when was this picture taken, to find out which species was there