Monstrous Centipede

  Monstrous Centipede, Tiny Monstrous Centipede, Small Monstrous Centipede, Medium
  Tiny Vermin Small Vermin Medium Vermin
Hit Dice: 1/4 d8 (1 hp) 1/2 d8 (2 hp) 1d8 (4 hp)
Initiative: +2 +2 +2
Speed: 20 ft. (4 squares), climb 20 ft. 30 ft. (6 squares), climb 30 ft. 40 ft. (8 squares), climb 40 ft.
Armor Class: 14 (+2 size, +2 Dex), touch 14, flat-footed 12 14 (+1 size, +2 Dex, +1 natural), touch 13, flat-footed 12 14 (+2 Dex, +2 natural), touch 12, flat-footed 12
Base Attack/Grapple: +0/–13 +0/–7 +0/–1
Attack: Bite +4 melee (1d3–5 plus poison) Bite +3 melee (1d4–3 plus poison) Bite +2 melee (1d6–1 plus poison)
Full Attack: Bite +4 melee (1d3–5 plus poison) Bite +3 melee (1d4–3 plus poison) Bite +2 melee (1d6–1 plus poison)
Space/Reach: 2-1/2 ft./0 ft. 5 ft./5 ft. 5 ft./5 ft.
Special Attacks: Poison Poison Poison
Special Qualities: Darkvision 60 ft., vermin traits Darkvision 60 ft., vermin traits Darkvision 60 ft., vermin traits
Saves: Fort +2, Ref +2, Will +0 Fort +2, Ref +2, Will +0 Fort +2, Ref +2, Will +0
Abilities: Str 1, Dex 15, Con 10, Int —, Wis 10, Cha 2 Str 5, Dex 15, Con 10, Int —, Wis 10, Cha 2 Str 9, Dex 15, Con 10, Int —, Wis 10, Cha 2
Skills: Climb +10, Hide +18, Spot +4 Climb +10, Hide +14, Spot +4 Climb +10, Hide +10, Spot +4
Feats: Weapon FinesseB Weapon FinesseB Weapon FinesseB
Environment: Underground Underground Underground
Organization: Colony (8–16) Colony (2–5) or swarm (6–11) Solitary or colony (2–5)
Challenge Rating: 1/8 1/4 1/2
Advancement:
Level Adjustment:

  Monstrous Centipede, Large Monstrous Centipede, Huge
  Large Vermin Huge Vermin
Hit Dice: 3d8 (13 hp) 6d8+6 (33 hp)
Initiative: +2 +2
Speed: 40 ft. (8 squares), climb 40 ft. 40 ft. (8 squares), climb 40 ft.
Armor Class: 14 (–1 size, +2 Dex, +3 natural), touch 11, flat-footed 12 16 (–2 size, +2 Dex, +6 natural), touch 10, flat-footed 14
Base Attack/Grapple: +2/+7 +4/+15
Attack: Bite +3 melee (1d8+1 plus poison) Bite +5 melee (2d6+4 plus poison)
Full Attack: Bite +3 melee (1d8+1 plus poison) Bite +5 melee (2d6+4 plus poison)
Space/Reach: 10 ft./5 ft. 15 ft./10 ft.
Special Attacks: Poison Poison
Special Qualities: Darkvision 60 ft., vermin traits Darkvision 60 ft., vermin traits
Saves: Fort +3, Ref +3, Will +1 Fort +6, Ref +4, Will +2
Abilities: Str 13, Dex 15, Con 10, Int —, Wis 10, Cha 2 Str 17, Dex 15, Con 12, Int —, Wis 10, Cha 2
Skills: Climb +10, Hide +6, Spot +4 Climb +11, Hide +2, Spot +4
Feats: Weapon FinesseB
Environment: Underground Underground
Organization: Solitary or colony (2–5) Solitary or colony (2–5)
Challenge Rating: 1 2
Advancement: 4–5 HD (Large) 7–11 HD (Huge)
Level Adjustment:

  Monstrous Centipede, Gargantuan Monstrous Centipede, Colossal
  Gargantuan Vermin Colossal Vermin
Hit Dice: 12d8+12 (66 hp) 24d8+24 (132 hp)
Initiative: +2 +1
Speed: 40 ft. (8 squares), climb 40 ft. 40 ft. (8 squares), climb 40 ft.
Armor Class: 18 (–4 size, +2 Dex, +10 natural), touch 8, flat-footed 16 20 (–8 size, +2 Dex, +16 natural), touch 4, flat-footed 18
Base Attack/Grapple: +9/+27 +18/+42
Attack: Bite +11 melee (2d8+9 plus poison) Bite +18 melee (4d6+12 plus poison)
Full Attack: Bite +11 melee (2d8+9 plus poison) Bite +18 melee (4d6+12 plus poison)
Space/Reach: 20 ft./15 ft. 30 ft./20 ft.
Special Attacks: Poison Poison
Special Qualities: Darkvision 60 ft., vermin traits Darkvision 60 ft., vermin traits
Saves: Fort +9, Ref +6, Will +4 Fort +15, Ref +9, Will +8
Abilities: Str 23, Dex 15, Con 12, Int —, Wis 10, Cha 2 Str 27, Dex 13, Con 12, Int —, Wis 10, Cha 2
Skills: Climb +14, Hide –2, Spot +4 Climb +16, Hide –7, Spot +4
Feats:
Environment: Underground Underground
Organization: Solitary Solitary
Challenge Rating: 6 9
Advancement: 17–23 HD (Gargantuan) 25–48 HD (Colossal)
Level Adjustment:

Monstrous centipedes tend to attack anything that resembles food, biting with their jaws and injecting their poison.

Size Fort DC Damage Size Fort DC Damage
Tiny 10 1 Dex Huge 14 1d6 Dex
Small 10 1d2 Dex Gargantuan 17 1d8 Dex
Medium 10 1d3 Dex Colossal 23 2d6 Dex
Large 11 1d4 Dex      

Poison (Ex): A monstrous centipede has a poisonous bite. The details vary by the centipede’s size, as shown on the table above. The save DCs are Constitution-based. The indicated damage is both initial and secondary damage.

Skills: Monstrous centipedes have a +4 racial bonus on Spot checks, and a +8 racial bonus on Climb and Hide checks. They can use either their Strength or Dexterity modifier for Climb checks, whichever is higher. Monstrous scorpions can take 10 on Climb checks, even if threatened or distracted.