Serpentine

 The Serpentine were snake-like creatures who took orders from Slitheraa, Skales, Lloyd, Pythor, Lord Garmadon, then Skales again. There were five tribes, but Pythor was the only Anacondrai. They once collected four fang blades and awoken the Great Devourer, but the ninja destroyed it.

Snakes

LEGO Ninjago: Masters of Spinjitzu

Other

Names:  Pythor, Skalidor, Bytar, Chokun, Snike, Fangtom, Fangdam, Fang-Suei, Snappa, Skales, Slitheraa, Mezmo, Rattla, Acidicus, Lizaru, Spitta, Lasha.
Tribes:  Anacondrai, Constrictai, Venomari, Hypnobrai, Fangpyre.
Years:  2012

Appearances:
9449 Ultra Sonic Raider
9448 Samurai Mech
9450 Epic Dragon Battle
9556 Bytar
9591 Weapon Pack
9442 Jay's Storm Fighter
9443 Rattlecopter
9445 Fangpyre Truck Ambush
9455 Fangpyre Mech
9457 Fangpyre Wrecking Ball
9571 Fangdam
9441 Kai's Blade Cycle
9444 Cole's Tread Assault
9446 Destiny's Bounty
9456 Spinner Battle Arena
9573 Slithraa
9555 Mezmo
9440 Venomari Shrine
9447 Lasha's Bite Cycle
9450 Epic Dragon Battle
9557 Lizaru
9569 Spitta
9562 Lasha
9591 NRG Kai vs Chokun
Lasha Watch
Ninja Vs Venomari Activity Book
850443 Venomari Warrior Key Chain
853403 Hypnobrai Slithraa Key Chain
853404 Ninjago Magnet Set: Sensei Wu, Fangpyre and Ninja Jay
LEGO Ninjago: Masters of Spinjitzu