Fast Facts

  • Classification
    Genus
    Sepia
    Species
    cultrata
    Family
    Sepiidae
    Super Family
    Sepioidea
    Suborder
    Sepiina
    Order
    Sepiida
    Superorder
    Decapodiformes
    Subclass
    Coleoidea
    Class
    Cephalopoda
    Phylum
    Mollusca
    Kingdom
    Animalia
  • Size Range
    Up to 12cm mantle length

Identification

Sepia cultrata has a pale buff pinkish brown colouring. The club is crescent shaped with a flattened sucker bearing possessing 5 or 6 small suckers in transverse rows.

The cuttlebone of the knifebone cuttlefish is elongate oval; with a characteristic triangular pointed anterior end, while the posterior end is narrow. The dorsal surface is salmon coloured with a distinct narrow median rib and two faint lateral ribs.

Habitat

This is a deep water species with the majority of catches occurring at 300 to 500 m depth, although the species has been found between depths of 132 to 803 metres.

Distribution

The knifebone cuttlefish is found in the Southern Indo-Pacific and is distributed in southern Australian coastal waters from southern Queensland to Western Australia, including Tasmania.


This map shows species occurrence observations from data recorded in the Atlas of Living Australia.

References

  • Jereb, P., & C.F.E Roper (eds) (2005) Cephalopods of the World: Chambered Nautiluses and Sepioids, Food & Agriculture Organization of the United Nations Catalogue for Fishery Purposes, Rome, No. 4, Vol. 1
  • Lu, C.C (1998) A Synopsis of Sepiidae in Australian waters (Cephalopoda: Sepiodiea). In: Voss, N.A., Vecchione, M., Toll, R.B. & Sweeney, M.J (Eds) Systematics and Biogeography of Cephalopods. Smithsonian Institution Press, Washington DC, Vol. 586, 159-190.
  • Watson-Russell, C. (1983) Cuttlefish of Sydney Harbour, Australian Natural History, 20(5): 159-164.