Claim: Sepia chirotrema is a species of cuttlefish that lives at a depth of between 120 and 210 m, grows to a mantle length of approximately 200 mm and was deposited at the Australian Museum.
Evidence: Sepia chirotrema is a species of cuttlefish native to the southern Indo-Pacific, specifically from Investigator Strait, southern Australia () to Dirk Hartog Island, western Australia (). It lives at a depth of between 120 and 210 m. Sepia chirotrema grows to a mantle length of approximately 200 mm. It was deposited at the Australian Museum in Sydney but no longer exists. The type specimen was collected in the Investigator Strait area (), south of Kangaroo Island ().