VIDEOS:
Selkidomus
Fans of the selkie legend can probably guess the selkidomus will be some kind of seal creature. (Though this one seems to be combined with a giant monster rather than a humanoid.)
Example of:
Selkies and Wereseals
Kopakonan
Example of:
Selkies and Wereseals
Saoirse
Example of:
Selkies and Wereseals