Selkie (Winx Club)

The Selkies are small mermaid-like magical creatures. Like Pixies, they are able to bond with fairies.

Biology
The Selkies of the Oceans are miniature wingless mermaids with brightly colored skin. They could be closely related to the Undines.

Culture and society
They wear hats that are brightly colored like them and which have decorations and a kind of veil on the back. Only Gate keepers of all realms and Guardian Selkies of the Pillars have a veil in their hat. Normal Selkies have normal hair strands. Male Selkies have their torso uncovered by scales. They are colored like the respective planets which they guard.

Ordinary Selkies have some similarities with the keepers:
 * The Selkies of Earth mostly have yellow and orange hats with ribbons on it.
 * The Selkies of Magix mostly have purple hats and hairs with butterfly decorations on it.
 * The Selkies of Andros mostly have blue hats with pearls on it.
 * The Selkies of Solaria mostly have yellow and gold hats with stars on it.
 * The Selkies of Melody mostly have red and magenta hats with corals on it.
 * The Selkies of Zenith mostly have lime and purple hats with lines on it.
 * The Selkies of Domino mostly have cyan hats with horn-like decorations on it.

The Gate Keepers are the Selkies that guard the portals connecting the Ocean of Andros to the oceans of all the worlds and realms of the entire Magic Dimension. They are known as the underwater Pixies. They have the ability to open or close the portals that link the Ocean of Andros to the oceans of another world or planet, and there is one gatekeeper for each world with the special symbols on their foreheads.

The Guardian Selkies guard the Pillars of the Infinite Ocean, like the Pillar of Light, the Pillar of Balance and the Pillar of Control. They use golden weapons and do not have symbols on their foreheads. Along with the gate keepers (Selkies that have ability to open ocean gates) and guardian Selkies (Selkies that guard the pillars in the Infinite Ocean), there are still many normal Selkies with unknown power. They are seen using weapons like the guardian Selkies and the symbols on their foreheads are like the ones on tritons' foreheads.

There are often many round creatures looking like baby fish that accompany them which turn onto brightly colored fish on coming in contact with magic or other fish. They are called bollabies.

Selkie Village
The Selkies of Earth live in a village found in the sea near Gardenia. It is very probable that the Selkies from other realms also have similar Selkie villages. The only Selkies who seem not to live in the Selkie villages are the Guardian Selkies who guard the Pillars of the Infinite Ocean, who live in the Infinite Ocean, near the Pillars, and the Selkies who guard the Ocean Gates, who live near the Ocean Gate they guard on the side of planet where it opens.

History
The Selkies were present during the crowning of Nereus, when Lemmy was holding the crown that King Neptune would place on Nereus' head.

After an oil spill occurred on Earth near Gardenia, oil from the spill traveled through the sea and reached the underwater portal linking the ocean of Earth to that of Andros. Phylla alerted by a Triton guarding vain and sealed the Earth portal after crossing it into Andros with the Triton guard.

There she and Lemmy saw Tritannus being mutated into a monster after absorbing the pollution and breaking free from the prison of Andros along with the Trix. With the help of the Trix and of the triton guards that he turned into monsters loyal to him, Tritannus stole the powers of the two gatekeepers. He then vowed to hunt down every Selkie and to steal all their powers, so that he would be able to enter the Infinite Ocean and from there conquer the whole Magic Dimension.

Six of eight known Selkies bonded with the Winx Club. Eventually Tritannus absorbed the powers of all the Selkies that guard an ocean portal, granting him access to the Infinite Ocean.

Selkies are also present in the Infinite Ocean, where there are Guardian Selkies who protect the Pillar of Light.