Final answer:
The Venus de Milo, created by Alexandros of Antioch, is the famous depiction that cannot firmly be identified as Aphrodite due to its missing arms and the resulting ambiguity.
Step-by-step explanation:
The famous depiction of Aphrodite that cannot firmly be identified as Aphrodite is the Venus de Milo. This sculpture, created by Alexandros of Antioch between 130-100 BCE (dates vary slightly in sources), is a well-known icon of the Hellenistic period. Although often identified as Aphrodite, the sculpture's missing arms have led to some ambiguity regarding what exactly the figure was doing, which affects her identification. It has been suggested that one arm could have been clutching at her slipping drapery, and the other might have held out an apple, a reference to the Judgment of Paris; however, these missing pieces leave room for interpretation and uncertainty about the statue's intended identity.