Animal Species:Knifebone cuttlefish – Sepia cultrata Hoyle, 1885

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.
 

Size range

Up to 12cm mantle length

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.

Distribution by collection data

Biomaps map of Sepia cultrata specimens in the Australian Museum collection.

What does this mean?

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.

Classification

Species:
cultrata
Genus:
Sepia
Family:
Sepiidae
Order:
Sepiida
Subclass:
Coleoidea
Class:
Cephalopoda
Phylum:
Mollusca

What does this mean?

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.
 


Allison Runck
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