An elephantine centipede scurries about, its double tail lashing angrily behind it.
Giant Whiptail Centipede CR 3
XP 600
N Huge vermin
Init +0; Senses darkvision 60 ft.; Perception +4
Defense
AC 15, touch 8, flat-footed 14 (+7 natural, –2 size)
hp 38 (4d8+20)
Fort +9, Ref +1, Will +1
Immune mind-affecting effects
Offense
Speed 40 ft., climb 40 ft.
Melee bite +8 (2d6+7 plus poison), tail slap +3 (1d3 nonlethal plus trip)
Space 15 ft.; Reach 15 ft. (20 ft. with tail slap)
Statistics
Str 25, Dex 11, Con 21, Int —, Wis 10, Cha 2
Base Atk +3; CMB +12; CMD 22 (can't be tripped)
Skills Climb +15, Perception +4, Stealth +0; Racial Modifiers +4 Perception, +8 Stealth
SQ compression
Ecology
Environment temperate or warm forests or underground
Organization solitary, pair, or colony (3–6)
Treasure none
Special Abilities
Poison (Ex) Bite—injury; save Fort DC 17; frequency 1/round for 6 rounds; effect 1d4 Dex; cure 1 save. The save DC is Constitution-based.
Tail Slap (Ex) A giant whiptail centipede's tail slap deals nonlethal damage and gains no bonus from its Strength score on damage dealt.
Whiptail centipedes are carrion eaters, though corpses large enough to satiate them are a rarity. Corpses of Huge or larger creatures left to rot often attract whiptail centipedes, who viciously defend their bounty against any who would intrude upon their lairs.
A writhing, seemingly endless segmented monstrosity crawls forth, its great mandibles clacking as it spies prey.
Titan Centipede CR 9
XP 6,400
N Colossal vermin
Init +0; Senses darkvision 60 ft.; Perception +4
Defense
AC 21, touch 2, flat-footed 21 (+19 natural, –8 size)
hp 135 (10d8+90)
Fort +16, Ref +3, Will +3
Immune mind-affecting effects
Offense
Speed 60 ft., climb 60 ft.
Melee bite +15 (4d6+24 plus poison)
Space 30 ft.; Reach 30 ft.
Special Attacks trample (6d6+24, DC 31)
Statistics
Str 43, Dex 11, Con 29, Int —, Wis 10, Cha 2
Base Atk +7; CMB +31; CMD 41 (can't be tripped)
Skills Climb +24, Perception +4, Stealth –8; Racial Modifiers +4 Perception, +8 Stealth
SQ compression
Ecology
Environment temperate or warm forests or underground
Organization solitary, pair, or colony (3–6)
Treasure none
Special Abilities
Poison (Ex) Bite—injury; save Fort DC 24; frequency 1/round for 6 rounds; effect 1d6 Dex; cure 2 consecutive saves.
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.