Tampoi like fruit identification needed

[Mike T]

A friend ask me to identify fruit he has from a picture. He is a bit over 100km away and knows tampoi but this seems different.Below in the link are some regular tampoi species.The posted pic shows some similarities to B.macrocarpa but the point and red skin are different.
http://oze.my/are-those-tampoi-fruits-lets-find-out/


His description of it is as follows : Similar segments inside like mangosteen and good flavour....almost more complex than mangosteen.
A positive identification would be much appreciated.

[sunny]

I gamble it is https://www.pinterest.com/pin/381257924681697484/

baccaurea angulata

[sildanani]

I don't think it looks like B. angulata. B. angulata is more obovoid and ridged.
This site shows what B. angulata looks like:
http://tropical.theferns.info/viewtropical.php?id=Baccaurea+angulata
You photo looks like the red-fruited form of B. macrocarpa aka "tampoi". I don't think it is known under a separate species.

[Finca La Isla]

Yeah, the Brunei Darusulam book has a photo of a red type of b. macrocarpa on page 70.  It looks a lot like that.