butterfly fish. This is one of the many fish-butterflies, with vertical black stripe, passing through the eye, and black and yellow color of the body. The filamentous butterfly is easily identified by the location of the bands on the body and the bla Butterfly fish. This is one of the many fish-butterflies, with vertical black stripe, passing through the eye, and black and yellow color of the body. The filamentous butterfly is easily identified by the location of the bands on the body and the bla