The New Student's Reference Work/Neptune (mythology)

Nep′tune, the Roman god of the sea, was like all the other gods of mythology, merely a name. This was derived from Nethunus, the sea-god of the Etruscans. He is also identified with the Greek sea-god Poseidon. The figure of a bearded man standing in a shell drawn over the sea and holding a three-pronged spear or trident is his usual pictorial representation.