Reaper Cuttlefish - Sepia mestus are also known as Red Cuttlefish.
They are small in size with the females around 12 cm and the males around 7-8 cm.
Like most species of Cuttlefishes, they have the ability to change their colours and appearance within seconds to blend in with their surrounding, they are master of camouflage.
''Sepia mestus'', also known as the Reaper cuttlefish or simply Red cuttlefish, is a species of cuttlefish native to the southwestern Pacific Ocean, specifically Escape Reef off Queensland to Murrays Beach off Jervis Bay . Reports of this species from China and Vietnam are now known to be misidentifications. ''S. mestus'' lives at a depth of between 0 and 22 m.
''S. mestus'' exhibits sexual dimorphism. Females grow to a mantle length of 124 mm, while males do not exceed 77 mm ML.