The Nereids

Fifty names for moving water

The Nereids were goddesses of the sea. The early Greek poet Hesiod gives their family: the sea god Nereus and Doris, a daughter of Ocean, have 50 daughters. Hesiod lists them by name, and so does Homer in the Iliad, his epic poem. The two lists overlap but do not match. Both include Thetis, Amphitrite, Galatea and several others, and each has names the other lacks. In Hesiod the number 50 stays firm, even when later poets choose different daughters to name.

Hesiod’s list turns the qualities of water into sisters. He says Cymodoce, Cymatolege and Amphitrite can calm misty waves and the blasts of the winds. Other names call up sailing, shores, caves, speed and rescue. The Nereids do not share one task between them. Because there are so many, the sea can appear through them as weather, route, shelter and the family of an older god.

Two daughters go far beyond the list. Amphitrite becomes the wife of the god Poseidon. Thetis marries a mortal man and gives birth to the hero Achilles. Their own lives do not take them out of the family. In the Iliad, Thetis calls the Nereids her sisters, and the poem brings her back to their cave after she has spoken with her son.

The wedding on Pelion

The marriage of Thetis takes all her sisters to Mount Pelion. Apollodorus, whose book the Library retells the Greek myths, tells how it happens. Peleus holds on to Thetis while she changes into fire, water and an animal. Then he marries her on the mountain, and the gods celebrate there with a feast and song. Later, after Achilles is born, Thetis tries and fails to take away his mortality. She leaves the child and goes back to the Nereids.

The playwright Euripides makes the wedding a scene for the whole group, in his play Iphigenia in Aulis. The Muses come across the slopes of Pelion to sing for Thetis and Peleus. Ganymede pours the wine, and Centaurs arrive from the mountain woods. The 50 daughters of Nereus dance in a circle on the bright sand. The Centaur Chiron announces that the bride will bear a warrior who will become the great light of Thessaly.

In the play, the chorus (the group of singers in a Greek drama) recalls this wedding at Aulis, where the Greek army is camped. There the young Iphigenia is being made ready for a marriage that is really a sacrifice. The memory of the divine wedding makes the trick in the Greek camp seem harsher. Achilles, the child promised at the earlier wedding, has been named as Iphigenia’s bridegroom as part of the lie.

The cry beneath the sea

Achilles cries out when he learns that his friend Patroclus is dead. Far below the surface, Thetis hears her son from the house of her father. Her sisters gather around her until their bright sea cave is full. They beat their breasts, and Thetis leads their mourning.

Homer names 33 of these sisters and then leaves the rest as a crowd. Glauce, Thalia, Cymodoce and Nesaea arrive, and so do Galatea, Doris and many others. When Thetis leaves to seek new armour for Achilles, the Nereids go with her through water that parts around them. They are a group who can share grief, not a decorative line behind one famous sister.

This passage gives the group its clearest action in a story. The Nereids listen while Thetis speaks of the son she cannot save. Then they carry the news back to Nereus as she goes towards Mount Olympus. The sea, the family and the coming death of Achilles all belong to the same scene.

Why they are seen as a group

The sources never make the 50 act as one single figure. Some calm the waves in Hesiod. A chosen group crowds around Thetis in Homer. All 50 dance at her wedding in Euripides. What unites them is their parents and their repeated gatherings, not one event shared by every named sister.

This is also why a list cannot hold them. The lists keep individual names, but the important scenes happen when the daughters gather. A circle forms on Pelion, a cave fills under the sea and mourning passes from sister to sister. The Nereids appear in the poems as a family large enough for the changing sea.