The Galanthis reference article from the English Wikipedia on 24-Apr-2004
(provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Galanthis

For thoughtful child sponsors
In Greek mythology, Galanthis was Alcmene's servant.

While Alcmene was pregnant with Heracles, Hera tried to prevent her from giving birth. She was foiled by Galanthis, who told Hera that she had already delivered the baby. Hera turned her into a weasel.

Alternative: Galinthias, Galinthis (Roman)