Titan Centipede

A writhing, seemingly endless segmented monstrosity crawls forth, its great mandibles clacking as it spies prey.
 

Titan Centipede (CR 9)

Colossal Vermin
Alignment: Neutral
Initiative: +0
Senses: Darkvision 60 feet; Perception +4
  Speed: 60 feet, Climb 60 feet
Space: 30 feet
 

Defense

Armor Class: 21, touch 2, flat-footed 21 (+19 natural, -8 size)
Hit Points: 135 (10d8+90)
Saving Throws: Fort +16, Ref +3, Will +3
Immunity: mind-affecting effects
 

Offense

Melee: bite +15 (4d6+24 plus poison)
Reach: 30 feet
  Special Attacks: Trample (6d6+24, DC 31)
 

Statistics

StrDexConIntWisCha
43 (+16) 11 (+0) 29 (+9) - 10 (+0) 2 (-4)
Base Attack Bonus: +7
CMB +31
CMD 41 (can't be tripped)
  Feats:
  Skills: Climb +24, Perception +4, Stealth -8 Languages:
  Special Qualities: Compression

 

Special Abilities

Poison (Ex)

Bite-injury; save Fort DC 24; frequency 1/round for 6 rounds; effect 1d6 Dex; cure 2 consecutive saves.
 

Ecology

Environment: Temperate or Warm Forests or Underground
Organization: solitary, pair, or colony (3-6)
Treasure: none

  The largest of their kind, titan centipedes are thankfully also the rarest. They attack other living creatures fearlessly, and require constant sustenance to nourish their vast bulk. Humanoids are in most danger from titan centipedes when mounted rather than afoot-a good-sized horse makes a much more satisfying meal to the centipede than a few bites of human.
  Titan centipedes are solitary by nature and because of the demands of their appetite, though when food is plentiful, multiple centipedes sometimes lurk in the same area.