Largemouth Triplefin (Ucla xenogrammus) カスリヘビギンポ – size 5cm
A Largemouth Triplefin can grow to almost 5 cm. Males can have a black edge to their center fin. It has a large mouth for its size at least, with a little bit of an underbite. Amami 2024
A Largemouth Triplefin. Amami 2025