Sepia cultrata, commonly known as the knifebone cuttlefish or elongated cuttlefish, is a species of cuttlefish from the family Sepiidae endemic to the southern Indo-Pacific. It is a deepwater species found in subtropical and temperate Australian waters.[2]
Sepia cultrata has a pale buff pinkish brown colour. It has a crescent-shaped club with a flattened sucker bearing 5 or 6 small suckers in transverse rows. The cuttlebone is an elongate oval shape with triangular pointed anterior and narrow posterior ends. It has a salmon-coloured dorsal surface with ribbing: the median rib is distinct and narrow, flanked by two faint lateral ribs. Its mantle grows to a maximum size of 12 cm.[2]
Its Australian distribution includes waters of Queensland, New South Wales, Victoria, Tasmania, South Australia and Western Australia.[2]
The knifebone cuttlefish typically inhabits waters between 300 and 500 m deep. The species' known depth range extends from 132 to 803 m.[2]
The type specimen was collected in Twofold Bay, New South Wales and was described by William Evans Hoyle in 1885.[3]
Sepia cultrata, commonly known as the knifebone cuttlefish or elongated cuttlefish, is a species of cuttlefish from the family Sepiidae endemic to the southern Indo-Pacific. It is a deepwater species found in subtropical and temperate Australian waters.
Sepia cultrata is een soort in de taxonomische indeling van de inktvissen, een klasse dieren die tot de stam der weekdieren (Mollusca) behoort. De inktvis komt enkel in zout water voor en is in staat om van kleur te veranderen. Hij beweegt zich voort door water in zijn mantel te pompen en het er via de sifon weer krachtig uit te persen. De inktvis is een carnivoor en zijn voedsel bestaat voornamelijk uit vis, krabben, kreeften en weekdieren die ze met de zuignappen op hun grijparmen vangen.
De inktvis komt uit het geslacht Sepia en behoort tot de familie Sepiidae. Sepia cultrata werd in 1885 beschreven door Hoyle.[1]
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