In
modern Greek folklore, the term "nereid" () has come to be used for all
nymphs,
fairies, or
mermaids, not merely nymphs of the sea.
In modern folklore The appears in modern Greek folktales as a kind of supernatural wife, akin to the
swan maiden, and gives its name to the homonymous type in the Catalogue of Greek Folktales: tale type
ATU 400, "The Neraïda". She is said to inhabit water sources (rivers and wells), similar to their ancient mythical counterpart, the
Nereids (water nymphs). However,
in modern speech, the term also encompasses fairy maidens from mountains and woodlands. Greek folklorist Nicolaos Politis amassed a great amount of modern folkloric material regarding the . In modern tales from Greek tellers, the are said to dance at noon or at midnight; to have beautiful golden hair; to dress in white or rose garments and to appear wearing a veil on the head, or holding a handkerchief. Due to their beauty, young men are drawn to the and steal their veils or kerchiefs to force their stay in the mortal realm. The women marry these men, but later regain their piece of clothing back and disappear forever. Another introductory episode of the Greek variants is one Angelopoulos dubbed
The Sisters of Alexander the Great. This refers to a
pseudo-historical or mythological account about
Alexander the Great and a quest for a water of life that grants immortality. His sister (or sisters) drinks it instead of him, is thrown in the sea and becomes a , a half-human, half-fish creature with power over the storm who can sink boats and become birds. They approach ships to ask if Alexander still lives, and can only be appeased if answered positively. In one tale, a youth on a ship captures a three times (or three ) and beats her until she promises not to threaten any more ships. The youth then arrives on a deserted island and sees three birds that become human (or flying maidens), and steals their garments.
Richard MacGillivray Dawkins suggested that the modern was a merging of three mythological characters (the
Sirens, the
Gorgons, and the
Scylla), and reported alternate tales where Alexander's sisters are replaced for his mother or a female lover. ==Explanatory notes==