Bašmu.”
Bašmu - an ancient Mesopotamian mythological creature, a horned snake with two forelegs and wings. It was also the Akkadian name of the Babylonian constellation equivalent to the Greek Hydra.
The Sumerian terms ušum (portrayed with feet, see Ninurta's Dragon) and muš-šà-tùr ("birth goddess snake", portrayed without feet) may represent differing iconographic types or different demons. It is first attested by a 22nd-century BC cylinder inscription at Gudea.
