Monocanthus SpilosomaMonocanthus commonly known as the fan bellied leatherjacket or fantail leatherjacket, is a species of filefish native to the western Pacific Ocean and the eastern Indian Ocean where it is found on reefs and soft sediments at shallow depths. This species grows to a total length of 40 centimetres (16 in). This is a demonstration store. This product, and its image and text, is placeholder only. Image source: Wikipedia Commons.