The Ngondo is yearly festival in Douala, Cameroon. A ceremony is performed by the jengu cult, in which a devotee enters the water to visit the kingdom of the miengu. Miengu (plural for jengu) are mermaid-like spirits with long hair and beautiful gap-teeth, who bestow good luck to devotees, cure diseases and allow them to communicate with the world of spirits. Image: Photokadaffi on Wikimedia Commons
Rusalkas are water spirits from Slavic folklore, who appear as a pretty young girls with long hair. In some versions of lore, Rusalkas are the souls of drowned women or unclean spirits who lure men into water, and drown them by entangling their body with their long red hair. Image: Ivan Bilibin
The Nikar or Nicor are water-monsters in Scandinavian, Teutonic, and Saxon mythology. They’re descendants of merpeople and the Nixies (benevolent water spirits) and drown and torment fishermen, tip over their boats, and create adverse weather. Image: Dictionnaire Infernal, 1863
