The NEREIDES were the daughters of Nereus and Doris, and were nymphs of the Mediterranean Sea.
They are similar in appearance to the Oceanides, but their beauty is of a less shadowy order, and is more like that of mortals. They wear a flowing, pale green robe; their liquid eyes resemble, in their clear depths, the lucid waters of the sea they inhabit; their hair floats carelessly over their shoulders, and assumes the greenish tint of the water itself, which, far from deteriorating from their beauty, greatly adds to its effect. The Nereides either accompany the chariot of the mighty ruler of the sea, or follow in his train.
We are told by the poets that the lonely mariner watches the Nereides with silent awe and wondering delight, as they rise from their grotto-palaces in the deep, and dance, in joyful groups, over the sleeping waves. Some, with arms entwined, follow with their movements the melodies which seem to hover over the sea, whilst others scatter liquid gems around, these being emblematical of the phosphorescent light, so frequently observed at night by the traveller in southern waters.
The best known of the Nereides were Thetis, the wife of Peleus, Amphitrite, the spouse of Poseidon, and Galatea, the beloved of Acis.