Lai (Scomberoides lysan) イケカツオ – Leatherskin – Queenfish – size 110cm
The Lai can get large but about 45cm is the largest I think that I have seen. They are very thin and shiny. They are often alone feeding on plankton near the surface. Kauai 2020
Another Lai. Kauai 2013
The イケカツオ are much the same as the Lai in Hawaii. They are about the same size. They also will swim in circles around you. Amami 2025