ce medium humanoid xulgath 

Perception +19; darkvision

Languages Draconic, Undercommon

Skills Acrobatics +22, Athletics +22, Stealth +20

Str +4 Dex +6 Con +7 Int -2 Wis +1 Cha -1

AC  28; Fort +23, Ref +22, Will +17

HP 190; Resistances acid 10

Caustic Fog (acid, aura) 10 feet. Whenever a gutrager is within another xulgath's stench aura, a fog appears around the gutrager; creatures in the fog (including the gutrager) can see as normal, but they are concealed from creatures outside the fog. Non-xulgaths that begin their turn in the fog take 2d6 acid damage. Strong winds suppress this ability.

Self-Detonate [>>] (acid) Requirements The gutrager has 45 or fewer HP; The gutrager compresses its gut and explodes in a burst of viscera, dying instantly and dealing 8d8 acid damage to creatures and unattended objects in a 20-foot emanation centered on the gutrager (DC 31 basic Reflex save).

Speed 40 feet

Melee [>] jaws +21, Damage 2d6+8 piercing plus 2d6 acid

Melee [>] claw +23 (agile, finesse), Damage 2d8+8 slashing

Ranged [>>] bile jet +23 (acid, range increment 60 feet), Damage 4d8+7 acid

Corrosive Kiss [>>] (acid) Frequency once per round; Effect The gutrager propels its esophagus out of its body to deliver an acidic blow. It makes an unarmed Strike against a creature or unattended object within 30 feet with a +23 attack bonus. On a hit, the target takes 2d6+8 bludgeoning plus 4d6 acid damage. On a critical hit, the target also takes 2d6 persistent acid damage. The gutrager is clumsy 1 for 1 round as it re-coils its esophagus.

Extinction Curse #4: Siege of the Dinosaurs, page 85.