Pleas id this kasturi like mango. Tastes like oranges.

[All the fruit]

Hi,
Found this mango in an ancient orchard with giat trees in Kuching, Borneo. Tastes exactly like oranges. Video on youtube https://m.youtube.com/watch?v=a_TgdZSA2Nw Any ideas about the species? Thank you

[Vernmented]

Could be Mangifera quadrifida.

[All the fruit]

Thank you. Any other suggestions? Borneo mangos are quite difficult

[Mangifera08]

I also think it`s Mangifera quadrifida. On this website: http://www.kujie2.com/wordless-wednesday/buah-asam-kumbang.html, M. quadrifida is called Buah Asam (Kumbang). Here some information about M. quadrifida http://tropical.theferns.info/viewtropical.php?id=Mangifera+quadrifida, it should have a prune-like smell. Or it could be some rare Mangifera species, of wich there are no pictures or information on the internet. I hope I could help at least a bit. 

[Oolie]

With the aroma of oranges it may be a distant relative of Dusheri and PPK, no way to know without testing, but speculation is that they share a common ancestor. PPK is from Myanmar.

[All the fruit]

Thank you. In the Kuching area and elsewhere they call all or most Borneo mangos buah asam while the imported M. Indica is called mangga.