Sepia cottoni is a species of cuttlefish native to the southeastern Indian Ocean, specifically from northwest of Broome (17°31' S) to Armstrong Point, Rottnest Island (32°0' S). It lives at a depth of between 83 and 183 m.
Sepia dubia is a species of cuttlefish native to the southeastern Atlantic Ocean. It is known only from the type locality, where it was caught at a depth of 25 m.
Sepia faurei is a species of cuttlefish native to the southwestern Indian Ocean, specifically to the east of the Cape of Good Hope, South Africa. It lives at depths to 168 m.
Sepia gibba is a species of cuttlefish native to the Red Sea. The depth range of S. gibba is unknown, although it is at least as shallow as 1 m.
Sepia insignis is a species of cuttlefish native to the southwestern Indian Ocean, specifically South Africa, from the Cape of Good Hope to Natal. It lives at depths to 42 m.
Sepia ivanovi is a species of cuttlefish native to the southwestern Indian Ocean, probably throughout southeast Africa, including Kenya, Mozambique, to the mouth of the Zambezi River. It lives at depths to 50 m.
Sepia kiensis is a species of cuttlefish native to the Indo-Pacific, specifically the Kai Islands, possibly to Timor and northern Australia. It lives at depth of 256 m. The validity of S. kiensis has been questioned.
Sepia mira is a species of cuttlefish native to the southwestern Pacific Ocean, specifically from the mouth of Clarence River, New South Wales to off Wooli in Australia. It lives at depths of between 20 and 72 m.
Sepia peterseni is a species of cuttlefish native to the western Pacific Ocean. Its natural range stretches south of central Honshū to southern Kyūshū, and it is also present in South Korea. It lives on the inner shelf at depths of between 20 and 100 m.
Sepia subplana is a species of cuttlefish native to the southwestern Pacific Ocean. It is known only from the type locality. S. subplana lives at depths of 400 to 600 m.
Sepia tala is a species of cuttlefish native to the southwestern Indian Ocean, specifically southwestern Madagascar off Cape Tala. It is known only from the type locality. S. tala lives at depths of 325 to 332 m.
Sepia tenuipes is a species of cuttlefish native to the western Pacific Ocean. Its natural range covers the waters off eastern Honshū and the western Japan Sea to the south of Kyūshū, the East China Sea, and Korea. S. tenuipes lives at depths of 100 to 250 m.
Sepia thurstoni is a species of cuttlefish native to the Indian Ocean, specifically the waters off Chennai in India and off Negombo and Hambantota in Sri Lanka. It lives at depths of 20 to 40 m.
Sepiella cyanea is a species of cuttlefish native to the southwestern Indian Ocean, from Port Elizabeth and Durban north to central Mozambique (26ºN) and Madagascar. It lives at depths of 13 to 73 m.
Sepiella ocellata is a species of cuttlefish known only from the type locality off Java. The depth range of this species is unknown. Only a single male specimen has been recorded. The status of S. ocellata is questionable.
Sepiola knudseni is a species of bobtail squid native to the eastern Atlantic Ocean, specifically northwest and west Africa, from the Canary Islands to the Gulf of Guinea. It lives on the inner continental shelf. S. knudseni lives at depths of 32 to 90 m.
Inioteuthis japonica is a species of bobtail squid native to the western Pacific Ocean, specifically the waters off China, Taiwan, and southern Japan.
Inioteuthis is a genus of bobtail squid comprising three species.
Austrorossia enigmatica is a species of bobtail squid native to the southeastern Atlantic Ocean; it occurs off the coast of southern Africa from Namibia to Cape Province. It lives at depths from 276 to 400 m.
Idiosepius picteti is a species of pygmy squid native to the Indo-Pacific waters off eastern Indonesia.
Mantle cavity of a mature female. Arrow points to the epirenal body, the function of which is unknown.
Twisted tentacular club of the same specimen.
