Afraid not. All the photos from this place show the same animals and none of them are Perny's Long-nosed Squirrel. The lack of a long nose is a giveaway. They are probably some sort of Callosciurus, although the photos aren't clear as to which - perhaps erythraeus (not all the subspecies have the bright belly colouration).
@Giant Eland no, that photo on Zootierliste is a Callosciurus - I don't know if that's the same animal as in your photo, but it looks like it might be a Grey-bellied Squirrel (C. caniceps).