Following up on before
From the Dictionary of Ancient Deities (2000):
Agunua, Argunua- Serpent deity. Agunua created men and one woman, as well as the sea, land and storms. It is said that he created rain because he was thirsty. He instructed his brother to plant a yam from which sprang the original banana, coconuts and almond trees. One day, his brother planted a batch of yams incorrectly and from that time forth certain plants became inedible forever.
Figonas, Higona, Hi'ona, Vigona- Creators. Spirits who were named Hatuibwari, Aunua and Walutahanga. Hatuibwari was a winged serpent with a human head, four eyes and four breasts, Walutahanga was a female serpent born to a mortal woman. The Figonas are shaped like serpents. They are similar to the Kafisi spirits.
Hatuibwari,Hasibwari- Serpent deity. Supreme god. Creator god. He formed a woman from red clay and a man from the woman's rib. Hatuibwari is a winged serpent with a man's head and breasts of a woman.
For The Element Encyclopedia of Magical Creatures (2005):
Agunua- In the Solomon Islands of Melanesia, the creators of life were the Figonas. The greatest Figona was Agunua who created a male child, but he was so helpless, Agunua made a woman to make fire, cook and weed the garden. Another Figona was the great cosmic-serpent Hatuibwari, who features in the traditions of the San Cristobel Islanders of Melanesia.
Figonas- In the Solomon Islands, the creators of life were the Figonas who were in the form serpents with wings. Hatuibwari was a winged serpent with a human head, four eyes and four breasts with which he suckled all creation. The greatest Figona was Agunua who created a male child- but the man was so helpless, Agunua made a woman to make fire, cook and weed the garden.
Hatuibwari- In the Solomon Islands of Melanesia, the creators of life were the Figonas, great winged serpents. Hatuibwari was a Figona with a human head, four eyes and four breasts with which she suckled all creation. The greatest Figona was Agunua who created a male child, but he was so helpless, Agunua made a woman to make fire, cook and weed the garden.
From Oceanic Mythology (1967):
Everywhere in San Cristobal there were stories about serpent figonas who were thought to be creators. Hatuibwari of the Arosi district was a winged serpent with a human head, four eyes and four breasts and he suckled all he created. The greatest of all these figona was Agunua who was thought to embrace all the others who were merely his representatives or incarnations. He made all kinds of vegetables and fruits but his brother burnt some of these in the oven, making them forever inedible. He made a male child who was helpless at caring for himself so he created a woman to make fire, cook and weed the gardens. The first drinking coconut from the tree was sacred to him.
History of Civilization: A Complete History of Mankind from Pre-Historic Times (1938/1997) seems to go into much greater detail about all three topics. Unfortunately, the set is about $10,000 and is not complete on google. Sigh.
Oh wait, here's that volume as a pdf. LOVE YOU GOOGLE.
And they decided to update their website. Let me see if I can help anyone...
Haha! Threshold of the Pacific from The History of Civilization.
Fine. Just... just stay here, okay?