Or you could call her 'Bonus.' or Extra, or Freebie, or Surprise !! but those names aren't as nice as the others. Melody would be a very pretty name but as a SF fan, there's Ramoth (golden dragon from the Pern books) or Menolly (same source a harper in the series). Really digging the color...
Wait until she poops on you, then her name will be $@$%Snake!!