uncommon n gargantuan beast 

Perception +32; darkvision, tremorsense (precise) [object Object] feet

Skills Athletics +37

Str +10 Dex +4 Con +6 Int -4 Wis +5 Cha -1

AC  41; Fort +35, Ref +29, Will +32

HP 445

Dune Dispersal (aura) 15 feet. Ground in the aura is greater difficult terrain.

Sand Armor (necromancy, primal) A gluttonworm in contact with a significant body of sand, such as a desert or beach, gains fast healing 10. If the gluttonworm is subject to persistent bleed, the flowing blood quickly congeals with the sand covering its body, instantly ending the bleed duration and giving the gluttonworm a +2 circumstance bonus to AC until the end of its next turn.

Inexorable The gluttonworm recovers from the paralyzed, slowed, and stunned conditions at the end of its turn. It's also immune to penalties to its Speeds and the immobilized condition, and it ignores difficult terrain and greater difficult terrain.

Speed 30 feet, burrow 40 feet

Melee [>] jaws +37 (deadly 3d10, reach 20 feet), Damage 4d12+18 piercing and Improved Grab

Melee [>] body +33, Damage 4d8+18 bludgeoning

Fast Swallow [R] Trigger The gluttonworm Grabs a creature, or a creature fails a Reflex save against a Gulping Charge; Effect The gluttonworm uses Swallow Whole.

Gulping Charge [>>>] The gluttonworm Strides up to double its Speed and can move through the spaces of Large or smaller creatures, gulping each creature whose space the worm enters and attempting a body Strike against each of them. The gluttonworm can use this Strike on each creature only once in a single use of Gulping Charge. Creatures can attempt a DC 41 basic Reflex save against this damage.

Spew Sandstorm [>>>] (air, earth, evocation, primal) The gluttonworm exhales swirling sand in a 60-foot cone. Creatures in the area must attempt a DC 41 Reflex save. It can't Spew Sandstorm again for 1d4 rounds. Critical Success The creature is unaffected.Success The creature takes 4d6 slashing damage and 4d6 bludgeoning damage from the scouring sand.Failure The creature takes 8d6 slashing damage and 8d6 bludgeoning damage from the sand, and is dazzled until the end of its next turn.Critical Failure The creature takes 12d6 slashing damage and 12d6 bludgeoning damage and is blinded for 1 hour.

Swallow Whole [>] (attack) Huge, 3d10+17 bludgeoning plus 2d6 slashing, Rupture 36

Strength of Thousands #5: Doorway to the Red Star, page 85.