ce small aberration 

Perception +7; darkvision

Languages Aklo, Undercommon

Skills Athletics +9 (+11 to Grapple), Stealth +9

Str +3 Dex +3 Con +1 Int -3 Wis +1 Cha -2

AC  18; Fort +7, Ref +10, Will +7

HP 28

Yank [R] (manipulate) Trigger An enemy targets the choker with an attack; Effect The choker tries to pull a creature it has grabbed or restrained into the path of the attack. The choker attempts an Athletics check, including its bonus to Grapple. If it succeeds against the grabbed or restrained creature's Fortitude DC, the choker redirects the attack to that creature, and the attacker compares its attack roll result against the new target's AC. The choker must move the creature into a space adjacent to itself. The creature must also be moved within the attacker's reach against a melee attack or into a space between itself and the attacker against a ranged attack. The choker can't use this ability to make the attacker target itself, even if it's grabbing or restraining the attacker.

Speed 20 feet, climb 15 feet

Melee [>] arm +11 (reach 10 feet), Damage 1d6+3 bludgeoning plus strangling fingers

Constrict [>] 1d6+3 bludgeoning, DC 19

Hidden Movement If the choker starts its turn hidden from or undetected by a creature, that creature is flat-footed against the choker's attacks until the end of the turn. Strangling Fingers Any creature hit by a choker's arm Strike is automatically grabbed, and the choker begins to strangle the target. The creature is suffocating and can't speak as long as it's strangled. This prevents it from casting spells with a verbal component or activating items with a command component.

Bestiary 2, page 51.