And the "Kujihongi" (Ancient Japanese History) states 'Tsumihayae kotoshironushinokami transformed into Yahiro no Kumawani to marry the daughter of Mishima no Mizokuihime, Ikutamayorihime, and had a boy and a girl,' indicating Kotoshironushi no kami transformed into Yahirowani.
『旧事本紀』では「都味歯八重事代主神化爲八尋熊鰐通三嶋溝杭女活玉依姫生一男一女（略）」とあり事代主神が八尋鰐と化したことの記述がある。