Arethusa. In Greek mythology, Arethusa was a nymph and daughter of Nereus, who fled from her home in Arcadia beneath the sea and came up as a fresh water fountain on the island of Ortygia in Syracuse, Sicily. The myth of her transformation begins in Arcadia when she came across a clear stream and began bathing, not knowing it was the river god Alpheus, who flowed down from Arcadia through Elis to the sea. He fell in love during their encounter, but she fled after discovering his presence and intentions, as she wished to remain a chaste attendant of Artemis. After a long chase, she prayed to her goddess to ask for protection. Artemis hid her in a cloud, but Alpheus was persistent. She began to perspire profusely from fear, and soon transformed into a stream. Artemis then broke the ground allowing Arethusa another attempt to flee. Her stream traveled under the sea to the island of Ortygia, but Alpheus flowed through the sea to reach her and mingle with her waters. Virgil augurs for Arethusa a salt-free passage beneath the sea on the condition that, before departing, she grant him songs about troubled loves, not those in her own future, but those of Virgil's friend and contemporary, the poet Cornelius Gallus, whom Virgil imagines dying from unrequited love beneath the famous mountains of Arcadia, Maenalus and Lycaeus. During Demeter's search for her daughter Persephone, Arethusa entreated Demeter to discontinue her punishment of Sicily for her daughter's disappearance. She told the goddess that while traveling in her stream below the earth, she saw her daughter looking sad as the queen of Hades. The Roman writer Ovid called Arethusa by the name Alpheias, because her stream was believed to have a subterranean communication with the river Alpheius, in Peloponnesus. Apart from retellings by classical authors including Ovid and Virgil, Percy Bysshe Shelley wrote a poem on Arethusa in 1820. As a patron figure of Syracuse, the head of Arethusa surrounded by dolphins was a usual type on their coins. They are regarded as among the most famous and beautiful Ancient Greek coins. Karol Szymanowski, polish classical music composer named The Fountain of Arethusa first of his three poems entitled Myths for violin and piano. The Saucy Arethusa is an 18th-century song about a British naval ship named after Arethusa. A song on the album Her Majesty the Decemberists by The Decemberists called Shanty for the Arethusa is about a different ship called Arethusa. A movement of Benjamin Britten's oboe piece Six Metamorphoses After Ovid is entitled Arethusa. Also Ralph Vaughan Williams, the English classical music composer, composed Sea Songs, a quick march for both brass band and wind band written in 1923, used a Morris Dance tune The Royal Princess which was also known by the title The Arethusa, alongside two other shanty tunes Admiral Benbow and Portsmouth. The Princess Royal is one of the most celebrated of Turlough O'Carolan's compositions, largely because of its association with the words of the song The Aretusa, to which it was set by Shield toward the end of the eighteenth century. The song of The Aretusa originally appeared in a small opera or musical entertainment called The Lock and Key, which was acted in 1796. The Princess Royal was composed for the eldest daughter in Carolan's time of The MacDermott Roe of Coolavin. It is perhaps worth mentioning that there is an English folk song, of fairly wide distribution in England which is entitled The Princess Royal but has no connection with Carolan's melody.