In Hawaiian mythology, Kalamainu'u (alternate spelling Kalanimainu'u) was a lizard goddess.
Myths
She is said to have lured her lover Puna-ai-koa'e to her cave where she kept him prisoner. When he longed to go surfing again, Kalamainu'u gave him her surf board, but warned him not to speak with anyone. He, however, spoke with friends who told him his lover's true nature. He returned to her cave, saw her in her true form, but showed no fear. Kalamainu'u killed the informants (Craig 1989:95, 218, Beckwith 1940:193, 200).
References
Kalamainu'u Wikipedia(Text) CC BY-SA