Ritual water vessel. Red-Figure Loutrophoros without handles. Attributed to the White Sakkos Painter. South Italian, Apulian, ca. 330 BCE. Tampa Museum of Art. Info and photo from: American Art Guide.
The tendril or snake-legged figure has multiple curling tails, wears a leaf skirt and headdress, while her torso is bare.
This version of the Scythian snake-legged goddess is extremely interesting, as she’s playing a kithara, a Greek stringed instrument, similar to a lyre. I haven’t seen any other depictions of the Scythian goddess playing an instrument, of any kind. The instrument does make me wonder if the artist here mixed up the Scythian goddess with the Sirens of the Odyssey— especially as there’s another vase, which clearly shows a bird-bodied siren with curls similar to this vase:
Apulian red-figured oinochoe, about 350-320 BCE. Full post here, which discusses the other vases. Photo from Flickr.
There’s several other depictions possible Scythian goddess figures with wings:
While I don’t think that the two-tailed figure was ever called a “siren” until Romanesque church art, I find the parallels with both the Sirens and the Scythian snake-legged goddess here very interesting.
For reference, a bird-bodied Siren playing a lyre on a vase:
White-ground lekythos, Odysseus and the Sirens, Eretria. By the Edinburgh Painter. Late 6th century BCE. From the National Archeological Museum in Athens, picture by me.
The Tampa vase is Fig 255 in: Trendall, A. D. Red Figure Vases of South Italy and Sicily : A Handbook. Thames and Hudson, 1989.
I found this reference in: Ustinova, Yulia. "Snake-Limbed and Tendril-Limbed Goddesses in the Art and Mythology of the Mediterranean and Black Sea." Scythians and Greeks: Cultural Interaction in Scythia, Athens and the Early Roman Empire (Sixth Century B.C. - Fist Century A.D.). Exeter: University of Exeter Press, 2005.