@Limelight
Thanks! It looks like there are only 2 holdings for this species listed on Zootierliete, and I still don't know how this animal ended up in a small roadside zoo in Malaysia.
@Toki Wow, that is so strange, what a find. No idea how that coulda happened. Theoretically it could also be quincquecarinata, but that'd actually be even rarer, so probably not