That would be a good Egyptian name to go along with Anubis. So would Seth, but that seems masculine, unless you know the sex of your snake. Not that it matters. I named my snake Renoir (after the painter) we call it Ren and I have no idea what our snake's sex is!
There are quite a variety of names, depending on what you're trying to associate your snake with: Sekhmet (translates to powerful one - was a lioness goddess), Apophis (a snake-headed god - associated with the underworld), Hauhet (a snake-headed goddess - associated with floods), Horus (a god associated with the sky and kingship) Baal (a god associated with storms), Duamutef (a jackal-headed god, like anubis, used in Canopic jars to store the stomach and upper intestines), etc., etc.,...the list just goes on. Although, I think "Anubis and Osiris" has a nice ring to it!
Let me know what you decide on naming this new snake!