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: None

Source: Lost Empires of Faerûn

This human-sized, spiderlike creature has a long, flat body and six spindly legs. Two more legs held close to its mouth end in spiny pincers. Two long, whiplike appendages emerge from the creature's body just behind its pincer-legs.

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.