Whip Spider, Giant (CR 1)

Medium Vermin
Alignment: Always neutral
Initiative: +2 (Dex); Senses: darkvision 60 ft. and Spot +4

AC: 16 (+2 Dex, +4 natural), touch 12, flat-footed 14
Hit Dice: 2d8+4 (13 hp)
Fort +5, Ref +2, Will +0
Speed: 40 ft.
Space: 5 ft./5 ft.
Base Attack +1; Grapple +2
Attack: Claw +2 melee
Full Attack: 2 claws +2 melee and bite -3 melee
Damage: Claw 1d4+1, bite 1d6
Special Attacks/Actions: Improved grab, squeeze
Abilities: Str 13, Dex 14, Con 14, Int -, Wis 10, Cha 2
Special Qualities: immunity to poison, vermin traits
Feats: -
Skills: Climb +5, Hide +6, and Spot +4
Advancement: 3-6 HD (Medium)
Climate/Terrain: Any land and underground
Organization: Solitary, pair, or pack (3-5)
Treasure/Possessions: None

Source: Lost Empires of Faerûn

Improved Grab (Ex): To use this ability, a giant arachnid must hit an opponent that is at least one size category smaller than itself with a claw attack.

Squeeze (Ex): A giant arachnid that gets a hold on an opponent of its own size category or smaller automatically deals damage with both claws and can make a bite attack at its highest attack bonus.

Vermin Traits: A giant arachnid is immune to all mind-affecting effects (charms, compulsions, phantasms, patterns, and morale effects). It also has darkvision out to 60 feet.

Skills: A giant arachnid receives a +4 racial bonus on Climb, Hide, and Spot checks.

A giant whip spider tries to grab prey in its pincers and hold it close to its mouth to feed.

A giant whip spider measures between 6 and 8 feet long and weighs about 200 pounds. Despite the impressive appearance of its whiplike appendages, they are simple feelers that the creature uses to probe into fissures and other areas it can't see.

Sages sometimes refer to giant whip spiders as monstrous amblypygids, but this term is not commonly used.