ne medium amphibious dragon water 

Perception +9; darkvision, scent (imprecise) 30 feet

Languages Draconic

Skills Acrobatics +11, Athletics +10, Intimidation +6, Stealth +9, Survival +7

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

AC  19; Fort +11, Ref +9, Will +7

HP 45; Immunities paralyzed, unconscious; Resistances acid 10

Tail Lash [R] Trigger A creature within reach of the river drake's tail uses an action to Strike or attempt a skill check. Effect The river drake attempts to Strike the triggering creature with its tail. If it hits, the creature takes a –2 circumstance penalty to the triggering roll.

Speed 20 feet, fly 50 feet, swim 30 feet

Melee [>] fangs +12, Damage 2d8+3 piercing

Melee [>] tail +12 (reach 10 feet), Damage 2d6+3 bludgeoning

Caustic Mucus [>>] (acid, arcane, evocation) The river drake spits a ball of caustic mucus up to a range of 50 feet that explodes in a 10-foot burst. Creatures within the burst take 4d6 acid damage (DC 19 basic Reflex save). Those that fail this save also take 1d6 persistent acid damage and take a –5-foot status penalty to their Speed. This Speed reduction ends with the persistent acid damage. The river drake can't use Caustic Mucus again for 1d6 rounds.

Draconic Frenzy [>>] The river drake makes one fangs Strike and two tail Strikes in any order.

Speed Surge [>] Frequency three times per day; Effect The river drake Strides or Flies twice.

Bestiary, page 131.