Thank you! You have taught me a new Maori word today, and reinforced the differences still extant in regional versions of Maori. I could not find "marakihau" in any of my usual online Maori dictionaries, and when I rang some friends for whom Maori is their first language, they had never heard the word either. Then I google it, and all was revealed. I can't picture you as a sea monster/god, but my friends were delighted and surprised to learn a new word. I shall have to print a picture of a "marakihau" and find out what it would be called in the Maori that they speak. Nga whakawhetai kia koe, mareikura.
(I offer thanks and praise to you, goddess)

http://homepages.paradise.net.nz/maxq/Jo's_Hints.htm