Idiosepius is a genus of squids in the family Idiosepiidae. They are small, reaching mantle lengths of no more than about 21 mm (0.8 in); members of this genus represent no interest to commercial fisheries. They occur in tropical and temperate waters throughout the Indo-Pacific, primarily in association with seagrass and mangrove roots.
Sepia burnupi is a species of cuttlefish native to the southwestern Indian Ocean, specifically southeast Africa, from Port Elizabeth to southern Mozambique and the Saya-de-Malha Bank. It lives at a depth of between 40 and 240 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.
Rossia glaucopis is a species of bobtail squid native to the southeastern Pacific Ocean, specifically the waters around Chile.
Austrorossia mastigophora is a species of bobtail squid native to western, southern and eastern Africa, from Guinea and Somalia to the Cape of Good Hope. A doubtful record of this species exists from Chile. It lives at depths to approximately 640 m.
Sepia senta is a species of cuttlefish native to the southeastern Indian Ocean, specifically the North West Shelf in Western Australia. It is possibly also present in Indonesia. Reid et al. (2005) note that "a very similar, probably closely related animal has been found in the Philippines". S. senta lives at depths of 256 to 426 m.
Euprymna hoylei is a species of bobtail squid native to the tropical waters of the Indo-Pacific, specifically the western Pacific Ocean and northwestern Australia. Little is known about the size range of this species.
Euprymna penares is a species of bobtail squid native to waters of the Indo-Pacific; its exact distribution is unknown. Little is known about the size range of this species.
Inioteuthis japonica is a species of bobtail squid native to the western Pacific Ocean, specifically the waters off China, Taiwan, and southern Japan.
Inioteuthis maculosa is a species of bobtail squid native to the Indo-Pacific. It occurs in the northern Indian Ocean, Persian Gulf, Arabian Sea, Bay of Bengal, Andaman Sea, and off India, Taiwan, the Philippines, and Indonesia.
Sepiadarium nipponianum is a species of cuttlefish native to the western Pacific Ocean; it occurs off the Japanese islands of Shikoku, Kyūshū, and southern Honshū.
Heteroteuthis weberi is a species of bobtail squid native to the Indo-Pacific waters off central Indonesia.
Heteroteuthis hawaiiensis is a species of bobtail squid native to the central and western Pacific Ocean. It occurs in waters off Hawaii, Bonin, the Ryukyu Islands, Indonesia, and the Great Australian Bight. H. hawaiiensis may also be present in Banc Combe in the southwestern Pacific at depths of 795 to 820 m.
Idiosepius minimus is a species of bobtail squid native to the "coast of Africa" where it occurs in shallow, inshore waters. Specimens collected under the junior synonyms I. biserialis and I. macrocheir were described from Mozambique. Since then, the further collecting effort off Mozambique has seen additional specimens gained. As a result it has been inferred that this species has a relatively restricted distribution since Idiosepius has not been recorded elsewhere in Africa.
Idiosepius thailandicus, also known as the thai pygmy squid, is a species of bobtail squid native to the Indo-Pacific waters off Thailand. The extent of this species' distribution is still to be determined and records of Idiosepius dwarf squid away from Thailand, south to Indonesia and north to Japan, may be attributable to this species.
Xipholeptos is a genus of squid in the family Idiosepiidae. It is monotypic, being represented by the single species Xipholeptos notoides, commonly known as the southern pygmy squid. The species was originally classified as Idiosepius notoides. The southern pygmy squid is native to the southwestern Pacific Ocean, off southern and eastern Australia. It inhabits shallow, inshore waters. It has been recorded off the coasts of New South Wales, South Australia, Tasmania and Victoria.
Idiosepius paradoxus, also known as the northern pygmy squid, is a species of pygmy squid native to the western Pacific Ocean. This species can be found inhabiting shallow, inshore waters around central China, South Korea, and Japan.
Idiosepius pygmaeus, also known as the two-toned pygmy squid or tropical pygmy squid, is a species of bobtail squid native to the Indo-Pacific. It occurs in waters of the South China Sea, Japan, Philippines, Palau, Indonesia, Northern Mariana Islands, as well as northern and northeastern Australia. It inhabits shallow, inshore waters.
