Wikipedia
In Polynesian mythology, stories about Tinirau are found throughout the islands of Polynesia. He is a guardian of fish. Many themes recur in the various versions. Often he travels to another land in search of his wife, or his wife travels to another land in search of him; sometimes he treats his wife badly, or she rejects him; while he is guardian of fish, it is his wife who gives the fish their individual characteristics. Sometimes their anxious or jealous relatives try to separate the lovers (Tremewan 2002:120).
In some traditions, he has a dual nature; one destructive as the guardian of sharks, and one a kind, handsome male youth; in others, his right side is human and his left side is a fish. Alternate names in the various Polynesian languages include Kinilau, Sinilau, Tigilau, and Tinilau.
Tinirau is an extinct genus of sarcopterygian fish from the Middle Devonian of Nevada. Although it spent its entire life in the ocean, Tinirau is a stem tetrapod close to the ancestry of land-living vertebrates in the crown group Tetrapoda. Relative to more well-known stem tetrapods, Tinirau is more closely related to Tetrapoda than is Eusthenopteron, but farther from Tetrapoda than is Panderichthys. The type and only species of Tinirau is T. clackae, named in 2012.