n small animal 

Perception +5; low-light vision, scent (imprecise) 30 feet

Skills Acrobatics +5, Athletics +2 (+4 to Climb or Swim), Stealth +5

Str +1 Dex +3 Con +2 Int -4 Wis +1 Cha -3

AC  15; Fort +6, Ref +7, Will +3

HP 8

Speed 30 feet, climb 10 feet

Melee [>] jaws +7 (agile, finesse), Damage 1d6+1 piercing plus filth fever

Filth Fever (disease) The sickened and unconscious conditions from filth fever don't improve on their own until the disease is cured. Saving Throw DC 14 Fortitude; Stage 1 carrier with no ill effect (1d4 hours); Stage 2 sickened 1 (1 day); Stage 3 sickened 1 and slowed 1 (1 day); Stage 4 unconscious (1 day); Stage 5 dead

Bestiary, page 276.