n tiny animal 

Perception +3; low-light vision, scent (imprecise) 30 feet

Skills Athletics +5, Stealth +3 (+5 in water)

Str +1 Dex -1 Con +4 Int -4 Wis +1 Cha -2

Deep Breath The snapping turtle can hold its breath for 30 minutes.

AC  16; Fort +8, Ref +1, Will +3

HP 9

Speed 10 feet, swim 20 feet

Clench Jaws [>] Requirements The snapping turtle damaged a creature with a jaws; Effect Strike in its previous action; The snapping turtle clenches its jaws down and automatically deals an additional 1d4 bludgeoning damage to the creature it just bit.

Shell Defense [>] The snapping turtle retracts its limbs and head into its shell and ends its turn. This increases its AC to 18, but it can't act except to reemerge, which it can do as a single action.

Bestiary 2, page 269.