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.Ludwig Preller Römische Mythologie Berlin, 1858 part II, p.121-2; Servius Ad Aeneidem VIII 9. 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).Ovid Metamorphoses XIV 334. 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.Ludwig Preller above, citing Servius; C. J. Mackie "Turnus and his ancestors" in The Classical Quarterly (New Series) 1991, 41, pp. 261-265.
