Notched triplefin

Trinorfolkia incisa, known commonly as the notched triplefin or notched threefin, is a species of triplefin blenny in the genus Trinorfolkia. It was described by Rudie Kuiter in 1986. This species is found at depths of between 10 and 30 m on the roofs of caves. This species occurs along the southern coast of Australia from the south western coast of Western Australia to Victoria and around Tasmania.