Bony Fish Anatomy In the space below, write some notes from your dissection and the handout on structure and function of these key organs and organs systems to identify the specialised components. Features Eyes Nose Communication (chatter and hearing) Otolith Mouth (including type of feeder) Operculum Structure Function Fins Scales Lateral line Heart (include chamber number and how gas exchange occurs) Intestine (including length) Swim bladder Reproductive organs (including ode of reproduction) Gills (include gill arches, rakers and filaments. And gas exchange)