What is another word for "serpent"?

Roget's Thesaurus (1911) lists these synonyms for "serpent": abroad, actor, adventurer, and, archtraitor, ass, bad, barrator, betrayer, bidder, blackguard, bungler, bunko, capper, carpetbagger, charlatan, cheat, clothing, cockatrice, conjuror, conspirator, crimp, deceive, deceiver, decoy, devil, dissembler, duck, empiric, faker, false, flusher, four, fraud, grass, gypsy, home, horse, humbug, hypocrite.