Serpentfolk

This serpentine humanoid has bright scaly skin, a long sinuous tail, and a fanged serpent’s head.

Serpentfolk CR 4

XP 1,200
NE Medium monstrous humanoid
Init +9; Senses darkvision 60 ft., scent; Perception +10

AC 18, touch 15, flat-footed 13 (+5 Dex, +3 natural)
hp 42 (5d10+15)
Fort +6, Ref +9, Will +6
Immune mind-affecting effects, paralysis, poison; SR 15

Speed 30 ft.
Melee mwk dagger +11 (1d4–1/19–20), bite +5 (1d6–1 plus poison)
Spell-Like Abilities (CL 4th; concentration +7)

At will—disguise self (humanoid form only, DC 14), ventriloquism
1/day—blur, mirror image, suggestion (DC 16)

Str 8, Dex 21, Con 17, Int 18, Wis 15, Cha 16
Base Atk +5; CMB +4; CMD 19
Feats Great Fortitude, Improved Initiative, Weapon Finesse
Skills Acrobatics +10, Disguise +8, Escape Artist +18, Knowledge (arcana) +9, Perception +10, Sense Motive +7, Spellcraft +9, Use Magic Device +12; Racial Modifiers +4 Use Magic Device, +8 Escape Artist
Languages Aklo, Common, Draconic, Undercommon; telepathy 100 ft.

Poison (Ex)

Bite—injury; save Fort DC 15; frequency 1/round for 6 rounds; effect 1d2 Str; cure 2 saves.

The save DC is Constitution-based.

Environment any land (usually jungles or underground)
Organization solitary, pair, or cult (3–12)
Treasure NPC gear (masterwork dagger, other treasure)

Serpentfolk are 6 feet tall and weigh 120 pounds. Degenerates are only 5 feet tall but weigh 200 pounds. All serpentfolk are quite long-lived, and generally live to the age of 500.

Pathfinder Roleplaying Game Bestiary 2, © 2010, Paizo Publishing, LLC; Authors Wolfgang Baur, Jason Bulmahn, Adam Daigle, Graeme Davis, Crystal Frasier, Joshua J. Frost, Tim Hitchcock, Brandon Hodge, James Jacobs, Steve Kenson, Hal MacLean, Martin Mason, Rob McCreary, Erik Mona, Jason Nelson, Patrick Renie, Sean K Reynolds, F. Wesley Schneider, Owen K.C. Stephens, James L. Sutter, Russ Taylor, and Greg A. Vaughan, based on material by Jonathan Tweet, Monte Cook, and Skip Williams.