Sepia koilados

Sepia koilados is a species of cuttlefish native to the southeastern Indian Ocean, specifically the North West Shelf in western Australia (-18.51667°N, 118.15°W to -19.21°N, 116.43°W). It lives at depths of between 182 and 203 m.

Males are slightly larger than females. They grow to a mantle length of 68 mm and 58 mm, respectively.

The type specimen was collected in the North West Shelf (-18.6°N, 118.03333°W to -18.65°N, 118.06667°W). It is deposited at the Museum of Victoria in Melbourne.