Muntjak identification

Can anyone help to identify this beautiful muntjak? No sign around and only this one individual in a small separated enclosure.

Black muntjac M. crinifrons by any chance?

Thanks Kifaru Bwana, checked the identification guide and surely M. crinifrons. No chance for M. gongshanensis

That is for sure a Black muntjac (Muntiacus crinifrons), correct me if I am wrong, but I dont think that there are any Gongshan muntjac (Muntiacus gongshanensis) in captivity, the only Muntiacus ssp. that I know of being in captivity are Black muntjac (Muntiacus crinifrons), Feas muntjac (Muntiacus feae), Truong son muntjac (Muntiacus truongsonensis), Indian muntjac (Muntiacus muntjak), Reeves muntjac (Muntiacus reevesi), and even Bornean yellow muntjacs (Muntiacus atherodes) from what I saw in a photo on google images

Does anyone have any idea about what rarer muntjac are viable in captivity? My eyes always glaze over when I read about muntjac on display in the UK, as they are invariably Reeves', a species that is approaching Grey Squirrel status as an introduced pest.

But the very success of Reeves' muntjac does make me suspect that there are other, rarer, species for which European and North American zoos might be able to do good conservation work. Any comments?

Here is a link with photos of the Truong son muntjacs in captivity

Muntiacus truongsonensis

and for anyone interested in the Bornean yellow muntjacs in captivity, here is a link to the place Chlidonias just mentioned

http://www.wildlife-fauna.com/mammals.html

Hey Chlidonias, not a problem
If you post photos, I will very much be looking forward to seeing them

There is a giant muntjac kept in the backyard of one general in Lao; and a male Gongshan muntjac is kept in Kunming Institute of Zoology, China.