Neptune of the sea, identified with the Greek Poseidon. The demand for a mythological name seemed to be in keeping with the nomenclature of the other planets, all of which, except for Earth, were named for deities in Greek and Roman mythology. Most languages today, even in countries that have no direct link to Greco-Roman culture, use some variant of the name "Neptune" for the planet. However, in Chinese, Vietnamese, Japanese, and Korean, the planet's name was translated as "sea king star" (), because Neptune was the god of the sea. In Mongolian, Neptune is called "Dalain Van" (Далайн ван), reflecting
Neptune (mythology) realm and the life cycle. Thesan and Uśil-Aplu, who has been identified with Śuri (Soranus Pater, the underwold Sun god) make clear the transient character of worldly life. The association of Nethuns and Uśil-Aplu is consistent with one version of the theory of the Etruscan Penates (see section below). In Martianus Capella's depiction of Heaven Neptune is located in region X along with the Lar Omnium Cunctalis (of everybody), Neverita and Consus. The presence of the Lar Omnium Cunctalis might be connected with the theology of Neptune as a god of fertility, human included, while Neverita is a theonym derived