Sepia baxteri is a species of cuttlefish

Cuttlefish

Cuttlefish are marine animals of the order Sepiida. They belong to the class Cephalopoda . Despite their name, cuttlefish are not fish but molluscs....

 native to the southwestern Pacific Ocean

Pacific Ocean

The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...

, specifically the waters around Lord Howe Island

Lord Howe Island

Lord Howe Island is an irregularly crescent-shaped volcanic remnant in the Tasman Sea between Australia and New Zealand, directly east of mainland Port Macquarie, and about from Norfolk Island. The island is about 11 km long and between 2.8 km and 0.6 km wide with an area of...

. It is known only from the type
cuttlebone

Cuttlebone

Cuttlebone, also known as cuttlefish bone, is a hard, brittle internal structure found in all members of the family Sepiidae, commonly known as cuttlefish....

s. Depth range is unknown.

Cuttlebones of this species are known to reach at least 74 mm.

S. baxteri is possibly a junior synonym of Sepia bandensis

Sepia bandensis

Sepia bandensis, or the Stumpy-spined cuttlefish, is a species of cuttlefish. Sepia baxteri and Sepia bartletti are possible synonyms. It reaches 7 centimeters in mantle length; males weigh about 40 grams, females 45 grams. The body is coloured light brown, or greenish yellow, with white spots on...

. The placement of this species in the genus Sepia

Sepia (genus)

Sepia is a genus of cuttlefish in the family Sepiidae encompassing some of the best known and most common species. The cuttlebone is relatively ellipsoid in shape...

is also questionable.

The type specimen was collected near Lord Howe Island (31°33′S 159°05′E). It is deposited at the Australian Museum

Australian Museum

The Australian Museum is the oldest museum in Australia, with an international reputation in the fields of natural history and anthropology. It features collections of vertebrate and invertebrate zoology, as well as mineralogy, palaeontology, and anthropology...

 in Sydney

Sydney

Sydney is the most populous city in Australia and the state capital of New South Wales. Sydney is located on Australia's south-east coast of the Tasman Sea. As of June 2010, the greater metropolitan area had an approximate population of 4.6 million people...

.