Sepia tanybracheia

Sepia tanybracheia is a species of cuttlefish native to the southeastern Indian Ocean. It is known only from the type locality. S. tanybracheia lives at depths of 200 to 205 m.

Males grow to a mantle length of 51 mm.

The type specimen was collected off Western Australia (-12.6°N, 123.75°W) and is deposited at the Museum of Victoria in Melbourne.