Merfolk (Winx Club)

Merfolk are the native species of the world of Andros. The females, called "Mermaids", are winged magical creatures with the lower part of a fish and the upper part of women. The males of their species are mermen, who are also known as "Tritons" and "Merfolks", and lack wings for some reason. They seem to be larger winged versions of Water nymphs without skin flaps under the arms. Mermaid society is found in the realm of Andros. Mermaids have powerful voices and the ability to fly.

Biology
The merfolk have wings and can fly, but only the females, the males possess a large spinal fin instead.

Behavior
Merfolk are naturally gentle beings that seek to help others.

Culture and society
Merfolk have matriarchal monarchies, in which the queens seem to have more power than the kings. They also swim in groups called "schools", like fish.

Individuals

 * Neptune: the King of the Seas of Andros,
 * Nereus: the heir to the throne
 * Tritannus: the son of Neptune and brother of Nereus, who was turned into a demon sea monster by pollution due to an oil spill on Earth.
 * Queen Ligea: Queen of the mermaids.
 * Princess Tressa: Princess of the mermaids.
 * Guardian Mermaids
 * Dark Sirens: Nazca, Terala, Unla, Limes and Asfodelia.

Related Species

 * Undine (likely)
 * Fairy (possibly)