low fh 4flushboard against rivershove?

[plzbenice]

just sat down, eff stacks 200. villain has 660 though, how he won them i dont know.

Villain opens to 8 utg i call on the button with 3 [img]/images/graemlins/heart.gif[/img] 3 [img]/images/graemlins/club.gif[/img] .

flop is:
2[img]/images/graemlins/diamond.gif[/img] 6[img]/images/graemlins/diamond.gif[/img] 3[img]/images/graemlins/diamond.gif[/img]

he bets 16, i raise to 48, he calls. pot is 115.

he should put me on flush/set/semibluff, bluff right?

turn is J [img]/images/graemlins/diamond.gif[/img]

he checks, i check behind.

river is 6 [img]/images/graemlins/heart.gif[/img]

he shoves for over pot.

whats his most likely hand here? he doesnt shove AdXx hoping to get called by a worse hand right?

when people overbett river slike this its mostly bluff/nuts, msot often nuts if solid players.

dont u see JJ, maybe 66 here a lot? i have to call against an unknown?