Galanthis

In Greek mythology, Galanthis or Galinthias (Ancient Greek: Γαλανθίς/Γαλινθιάς, romanized: Galanthís/Galinthiás) was the woman who interfered with Hera's plan to hinder the birth of Heracles in favor of Eurystheus, and was changed into a weasel or cat as punishment for being so insolent as to deceive the goddesses of birth that were acting on Hera's behalf.