n medium animal 

Perception +6; darkvision

Skills Acrobatics +6, Athletics +2, Stealth +6

Str -1 Dex +3 Con +1 Int -5 Wis +1 Cha -4

AC  15; Fort +7, Ref +6, Will +2

HP 8

Speed 30 feet, climb 30 feet

Melee [>] mandibles +6 (finesse), Damage 1d4-1 piercing plus giant centipede venom

Giant Centipede Venom (poison) Saving Throw DC 14 Fortitude; Maximum Duration 6 rounds; Stage 1 1d6 poison damage (1 round); Stage 2 1d8 poison damage and flat-footed (1 round); Stage 3 1d12 poison damage, clumsy 1, and flat-footed (1 round)

Bestiary, page 61.