kūtai - mussel
Kūtai, n. Mussel; Mytilus canaliculus, M. planulatus, and other species. = kuku.
Williams Dictionary
He kūtai, he pūhā tēnei toroī.This fermented food is mussels and pūhā.
E kore rawa a Tia e kai i te kūtai.Tia will never eat mussels.