uncommon n small amphibious earth elemental water 

Perception +3; darkvision

Languages Aquan, Terran

Skills Athletics +6, Diplomacy +7

Str +3 Dex +1 Con +2 Int -2 Wis +0 Cha +2

AC  14; Fort +7, Ref +4, Will +3

HP 24, fast healing 2 (while touching mud or slime); Immunities bleed, poison, paralyzed, sleep

Speed 20 feet, fly 20 feet

Melee [>] fist +8, Damage 1d6+3 bludgeoning

Arcane Innate Spells DC 17; 1st grease

Breath Weapon [>>] (arcane, poison) The ooze mephit spits toxic slime in a 15-foot cone that deals 2d6 poison damage to each creature within the area (DC 17 basic Reflex save). The ooze mephit can't use Breath Weapon again for 1d4 rounds.

Bestiary 2, page 113. Expanded in LOIL.