Slowplay

I was sure he had Jx, should I have bet bigger on the river? Villain is 17/16 WTSD 30

IPoker, $0.10/$0.20 No Limit Hold'em Cash, 4 Players
Poker Tools Powered By Holdem Manager - The Ultimate Poker Software Suite.

Hero (BB): $26.01 (130.1 bb)
CO: $37.40 (187 bb)
BTN: $25.09 (125.5 bb)
SB: $20 (100 bb)

Preflop: Hero is BB with 5 5
CO raises to $0.60, BTN calls $0.60, SB folds, Hero calls $0.40

Flop: ($1.90) J 5 J (3 players)
Hero checks, CO bets $1.40, BTN calls $1.40, Hero calls $1.40

Turn: ($6.10) 4 (3 players)
Hero checks, CO checks, BTN bets $4, Hero calls $4, CO folds

River: ($14.10) 9 (2 players)
Hero bets $7, BTN calls $7

Results: $28.10 pot ($1.40 rake)
Final Board: J 5 J 4 9
Hero mucked 5 5 and won $26.70 ($13.70 net)
BTN showed J Q and lost (-$13 net)