You present to us a picture of Michael Lo (“Jungle Mike”) showing a licorice gourami from Belitung. The only thing you can tell is that the fish is a male.
The colouring of that fish is not the normal one to be seen in a bigger tank with means to hide showing the typical Belitung species, but it is the typical fright-colour to be seen immediately after the catch in the small container used for photos. It’s no speciality. Nearly all licorice gouramis look like this when frightened by the catch. It is impossible to distinguish several species of the round-tailed forms of the bitan-harveyi-group when the photo is taken in such a situation; they alle look nearly the same.
And we too know that there is one licorice species living on Belitung; first photos of it (by Horst Linke) were published at different places, e.g. our AMAZONAS-special on this group. It’s not identical with P. deissneri which is endemically living on Bangka island only. Maybe, the Belitung species is identical with P. bintan which seems to have spread to different places. But this is unclear.
Nevertheless, it’s good to see such a fish here. But the explanation is that I gave: it’s a frightened fish.