A massive shark that guard the blue shard of the Scepter of the Shifting Sands. Azuregos calls him a "minnow."
According to comments on thottbot Maws is a straightforward boss fight, spank, tank and DPS with healing on the tank. As the fight is underwater you risk drowning if you forget to buff up. Maws will frenzy, but Detect Magic will allow your hunters to use a Tranq shot when this occurs. Below 20% he will occasionally AoE, but Prayer of Healing should be able to keep all raid members up at this point. For a guild on Scepter of the Shifting Sands questline this fight should not be a challenge and would be able to be taken with potentially as few as 25 members.