Moʻo

A skin of pale yellow froth spreads across the surface of a still pool, and the people who live by that water know at once to keep their distance. It is not algae and it is not the wind. It means the guardian is home. Fish taken from the pond that day will carry a bitterness on the tongue, and children are called back from the bank. Somewhere below the flat green surface, in water deep enough to swallow a canoe, something long and black lies coiled and waiting.

That something is a moʻo, one of the reptilian water spirits who hold the fresh water of Hawaiʻi. The word itself means lizard, and it means more than lizard. It also carries the sense of a line of succession, a genealogy, one vertebra following another down the length of a spine and one generation following another down the length of a family. A moʻo is both the animal and the idea of continuity, which is a heavy thing to load onto a creature that can also pass for a house gecko in the rafters.

In its full and terrible form a moʻo is a lizard the length of several canoes laid end to end, two to five fathoms of glistening black muscle, its hide dark and wet as poured lava. It can shrink until it fits in a cupped hand. Most often, when it wants to move among people, it wears the body of a woman, and the woman is beautiful in a way that makes travellers forget their errands. Moʻo are almost always female. Their beauty is not decoration. It is a lure.

They belong to fresh water and only fresh water. The open sea is not theirs. A moʻo takes a fishpond, a stream, a spring, or the deep pool beneath a waterfall and makes it a domain. Along the walled fishponds that once fed the islands, the loko iʻa built of stacked lava rock, a resident moʻo was both landlord and protector, keeping the fish fat and the water sweet for the families who tended it. Such a guardian was an ʻaumakua, an ancestral spirit woven into a household, called on by name and fed with offerings. To have a moʻo in your water was a kind of wealth. A pond-keeper crossing the mud wall at first light might leave a wrapped bundle at the water’s edge and speak a few quiet words, and the surface would go glassy without a ripple, the way water does when something large beneath it has grown still to listen.

The powers of a moʻo run with the water it commands. It can raise a mist or hold back the rain, muddy a clear pool or calm a troubled one, and it can call the fish or drive them away. In the shape of a woman it can bind a man to itself completely. More than one story tells of a chief who followed a lovely stranger to a hidden pool or a cave and did not come back the same, or did not come back at all.

Where the moʻo came from is told more than one way. The oldest accounts trace the lizard-kind back to a great ancestress, Moʻoinanea, who led them to the islands from the distant homeland of Kahiki and settled them in the waters. Other moʻo were never lizards to begin with. They were people, powerful ones, whose bones were deified after death so that their spirit took the reptile form and kept watch over the living. The most famous of them began as a girl. Kihawahine was a daughter of Piʻilani, the sixteenth-century ruling chief of Maui, and when she died her family raised her into a goddess. She took up residence in the pond at Mokuʻula in Lahaina, a small island in a freshwater loko that became the sacred heart of a royal compound for three centuries. Kings kept her image. Kamehameha, who unified the islands, carried Kihawahine as his own guardian, a lizard goddess riding at the front of his gods, and no other moʻo ever gathered so large a following.

Not every meeting with a moʻo ended in worship. When Pele the volcano goddess sent her youngest sister Hiʻiaka the length of the islands to fetch a mortal lover, the road was thick with moʻo, and Hiʻiaka killed them as she went. One giant she fought on the windward coast of Oʻahu and beheaded, and she flung the tail out into the shallows, where it stands to this day as the little island of Mokoliʻi. The name means lizard tail. The rest of the body settled into stone along the shore, which is a common end for a moʻo that meets something stronger than itself. Kill one and it does not rot. It becomes rock, and the rock keeps the shape.

For all their command of water, the moʻo have limits, and the limits are the water itself. A moʻo away from its pool is a moʻo out of its strength. It can be fought and dismembered by an akua or a kupua of greater power, as Hiʻiaka proved again and again, and what remains of it hardens into a landmark. Its own nature betrays it, too. The yellow froth that warns a village of its presence is a sign it cannot hide, and the beauty it wears as a woman is a mask that a steady eye can see through before it is too late to turn back.

They have not gone anywhere. A recent survey of the Hawaiian-language record gathered the names of nearly three hundred individual moʻo out of old newspapers, chants, and family histories, each one tied to a particular pond or bend of a stream. The places still carry the marks. There are stones shaped like lizards, ponds no one fishes carelessly, and waters where, when the surface goes suddenly still and a film of yellow rises, older people will tell you to gather the children and step back from the edge.

Frequently Asked Questions

What is a moʻo?

A moʻo is a reptilian water spirit of Hawaiian mythology, a guardian deity of fresh water that can appear as a giant black lizard, a tiny gecko, or a beautiful woman. Moʻo live in and around fishponds, streams, springs, and pools, and are revered as ancestral guardians, or ʻaumakua, while also being feared as dangerous shapeshifting kupua.

What does a moʻo look like?

In its largest form a moʻo is a glistening jet-black lizard between roughly twelve and thirty feet long, but it can shrink to the size of a common house gecko or take the shape of a strikingly beautiful woman. Moʻo are almost always female, and their human form is used to lure and deceive people near water.

Where do moʻo live?

Moʻo live only in fresh water, never the open ocean, making their homes in fishponds, streams, springs, and the deep pools beneath waterfalls. A moʻo living in a walled Hawaiian fishpond, or loko iʻa, acted as its guardian, keeping the fish and water healthy for the family that tended it.

How can you tell a moʻo is present?

A film of yellowish froth or scum on the surface of a still pond is the classic sign that a moʻo is home. When the froth appears the water is considered dangerous, and fish caught there are said to taste bitter, so people keep away from the edge.

Who is the most famous moʻo?

The most famous moʻo is Kihawahine, a sixteenth-century Maui chiefess who was deified after her death into a powerful lizard goddess. She dwelt in the sacred pond at Mokuʻula in Lahaina and was carried as a personal guardian by Kamehameha the Great, giving her a larger following than any other moʻo.

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