uncommon ce medium humanoid mutant serpentfolk 

Perception +8; darkvision, scent (imprecise) 30 feet

Languages Aklo, Undercommon; telepathy 100 feet

Skills Acrobatics +7, Athletics +11, Intimidation +6

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

Items scimitar

AC  18; Fort +10, Ref +7, Will +6 (+2 status vs. mental)

HP 60; Resistances poison 5

Attack of Opportunity [R]

Speed 25 feet

Melee [>] scimitar +11 (forceful, sweep), Damage 1d6+6 slashing

Melee [>] fangs +11, Damage 1d8+6 piercing plus serpentfolk venom

Melee [>] tail +11 (agile), Damage 1d6+6 bludgeoning plus Knockdown

Serpentfolk Venom (poison) Saving Throw DC 20 Fortitude; Maximum Duration 6 rounds; Stage 1 1d4 poison damage and enfeebled 1 (1 round); Stage 2 2d4 poison damage and enfeebled 1 (1 round)

Slithering Attack [>] The aapoph serpentfolk makes one scimitar or fangs Strike and one tail Strike, each targeting a different creature. These attacks both count toward the aapoph's multiple attack penalty, but the penalty doesn't increase until after the aapoph makes both attacks.

Bestiary 2, page 238.