,
Palermo) on a wall in the House of Neptune and Amphitrite,
Herculaneum, Italy , which reads (in English): "To Neptune and
Minerva, for the welfare of the Divine House, by the authority of
Tiberius Claudius Cogidubnus, Great King in Britain, the college of artificers and those therein erected this temple from their own resources [...]ens, son of Pudentinus, donated the site." sculptor Nicolau Travé, with two
nereids by Antoni Solà (
Barcelona: Llotja de Mar) '', showing the couple
in procession. Detail of a large Roman mosaic from
Cirta,
Roman Africa (c. 315–325 AD, now at the
Louvre) The
theology of Neptune is limited by his close identification with the Greek god
Poseidon, one of many members of the
Greek pantheon whose theology was later tied to a
Roman deity. The
lectisternium of 399 BC indicated that the Greek figures of Poseidon,
Artemis, and
Heracles had been introduced and worshipped in Rome as Neptune, Diana, and Hercules. It has been speculated that Neptune has been conflated with a
Proto-Indo-European freshwater deity; since the Indo-Europeans lived inland and had little direct knowledge of the sea, the Romans may have reused the theology of a previous freshwater god in their worship of Neptune.
Servius explicitly names Neptune as the god of rivers, springs, and waters; he may parallel the
Irish god
Nechtan, master of rivers and wells. This is in contrast to Poseidon, who was primarily a god of the sea. Neptune has been associated with a number of other Roman deities. By the first century BC, he had supplanted
Portunus as the god of naval victories;
Sextus Pompeius called himself the "son of Neptune". For a time, Neptune was paired in his dominion of the sea with
Salacia, the goddess of
saltwater. Neptune was considered the legendary progenitor god of the
Falisci (who called themselves
Neptunia proles), joining
Mars,
Janus,
Saturn, and
Jupiter as the deific father of a Latin tribe.
Neptunalia Neptunalia, the Roman festival of Neptune, was held at the height of summer (typically on July 23). The date of the festival and the construction of tree-branch shelters suggest that Neptune was a god of water sources in times of drought and heat. The most ancient
Roman calendar set the
feriae of Neptunus on July 23, between the
Lucaria festival of the grove and the
Furrinalia festival of July 25. All three festivals were connected to water during the period of summer heat (
canicula) and drought, when freshwater sources were lowest. It has been speculated that the three festivals fall in a logical order. The
Lucaria was devoted to clearing overgrown bushes and uprooting and burning excess vegetation. It was a time of merrymaking, when men and women could mix without the usual Roman societal constraints. There is an added context of agricultural fertility in the festival, since Neptune received the sacrifice of a bull.
Temples Neptune had only one temple in
Rome. It stood near the
Circus Flaminius, the Roman racetrack in the southern part of the
Campus Martius, and dates back to at least 206 BC. The temple was restored out by
Gnaeus Domitius Ahenobarbus , an event depicted on a coin struck by the consul. Within the temple was a sculpture of a marine group by
Scopas Minor. The Basilica Neptuni was later built on the Campus Martius, and was dedicated by
Agrippa in honor of the naval
victory of Actium. This
basilica supplanted the older temple, which had replaced an ancient altar.
Sacrifices Neptune is one of only four Roman gods to whom it was considered appropriate to sacrifice a bull. The other three were
Apollo,
Mars, and
Jupiter, although
Vulcan (known in Greek mythology as Hephaestus) has also been depicted with the offering of a red bull and a red-bull calf. If an incorrect offering was presented, either inadvertently or due to necessity, additional
propitiation was required to avoid divine retribution. This type of offering implied a stricter connection between the deity and the world.
Paredrae Paredrae are entities who accompany a god, representing the fundamental aspects (or powers) of that god. With Hellenic influence, these
paredrae came to be considered separate deities and consorts of their associated god. Earlier folk belief might have also identified
paredrae as consorts of their god. Salacia and
Venilia have been discussed by ancient and modern scholars. Varro connects Salacia to
salum (sea), and Venilia to
ventus (wind). Festus attributed to Salacia the motion of the sea. Venilia brought waves to the shore, and Salacia caused their retreat out to sea. They were examined by the Christian philosopher
St. Augustine, who devoted a chapter of
De Civitate Dei to ridiculing inconsistencies in the theological definition of the entities; since Salacia personified the deep sea, Augustine wondered how she could also be the retreating waves (since waves are a surface phenomenon). Servius, in his commentary on the
Aeneid, wrote about Salacia and Venilia in V 724: "
(Venus) dicitur et Salacia, quae proprie meretricum dea appellata est a veteribus"; "(Venus) is also called Salacia, who was particularly named goddess of prostitutes by the ancient". Elsewhere, he wrote that Salacia and Venilia are the same entity. Among modern scholars, Dumézil and his followers Bloch and Schilling centre their interpretation of Neptune on the direct, concrete, limited value and functions of water. Salacia would represent the forceful, violent aspect of gushing and overflowing water and Venilia the tranquil, gentle aspect of still (or slowly-flowing) water. According to Dumézil, Neptune's two
paredrae (Salacia and Venilia) represent the overpowering and tranquil aspects of water, natural and domesticated: Salacia the gushing, overbearing waters, and Venilia the still (or quietly-flowing) waters. Preller, Fowler, Petersmann and Takács attribute to the theology of Neptune broader significance as a god of universal worldly fertility, particularly relevant to agriculture and human reproduction. They interpret Salacia as personifying lust, and Venilia as related to
venia: ingratiating attraction, connected with love and the desire for reproduction.
Ludwig Preller cited a significant aspect of Venilia; she was recorded in the
indigitamenta as a deity of longing or desire. According to Preller, this would explain a theonym similar to that of Venus. Other data seem to agree; Salacia would parallel
Thetis as the mother of Achilles, and Venilia would be the mother of
Turnus and
Iuturna by
Daunus (king of the
Rutulians). According to another source, Venilia would be the partner of
Janus, with whom she mothered the nymph
Canens (loved by
Picus). These mythical data underline the reproductive function envisaged in the figures of Neptune's
paredrae, particularly that of Venilia, in childbirth and motherhood. A legendary king
Venulus was remembered at
Tibur and
Lavinium. ==Neptunus equestris==