World of Warcraft
This section concerns content exclusive to Cataclysm.
The Mudsnout Gnolls had recently been increasing their numbers since the Shattering. Led by Ro'Bark, the tribe had overrun Nethander Stead and are currently growing large white mushrooms called Mudsnout Blossoms.
This section concerns content exclusive to Legion.
There seems to be two class of Mudsnouts in World of Warcraft.
Ro'Bark is a level 28 rare spawn, and may be their leader.