Cephaloscyllium cooki


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Cephaloscyllium cooki
Species Authority: Last, Séret & White, 2008
Common Name(s):
English Cook’s Swellshark
Taxonomic Notes: Cook’s Swellshark (Cephaloscyllium cooki) is a recently described species (Last et al. 2008).

Assessment Information [top]

Red List Category & Criteria: Data Deficient ver 3.1
Year Published: 2011
Date Assessed: 2010-01-20
Assessor(s): Kyne, P.M.
Reviewer(s): Carlson, J. & Dulvy, N.

Cook’s Swellshark (Cephaloscyllium cooki) is a small (to 30 cm total length), poorly known deepwater catshark, with a restricted distribution off northern Australia and eastern Indonesia. This species occurs on the upper continental slope at depths of 225–300 m. Nothing is known of its biology or capture in fisheries and it is known from only a handful of specimens. The species’ status needs to be better defined, and given the lack of available information, an assessment of Data Deficient is appropriate.

Geographic Range [top]

Range Description:

Cook’s Swellshark is restricted to a small area of the Arafura Sea off northern Australia and off Tanimbar Island in eastern Indonesia (Last et al. 2008, Last and Stevens 2009).

Australia (Northern Territory); Indonesia
FAO Marine Fishing Areas:
Pacific – western central
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: There is no information on the population of Cook’s Swellshark.
Population Trend: Unknown

Habitat and Ecology [top]

Habitat and Ecology:

Cook’s Swellshark, a deepwater benthic catshark, has been recorded from the upper continental slope at depths of 225–300 m (Last et al. 2008, Last and Stevens 2009). Maximum size of this small species is at least 30 cm total length (Last et al. 2008, Last and Stevens 2009). Nothing else is known of the biology of the species.

Systems: Marine

Use and Trade [top]

Use and Trade: There is no known use or trade of Cook’s Swellshark.

Threats [top]

Major Threat(s):

There is no information on threats to Cook’s Swellshark, including whether it is captured as bycatch in fisheries occurring off northern Australia and eastern Indonesia.

Conservation Actions [top]

Conservation Actions:

There are no conservation actions in place for Cook’s Swellshark. Biological parameters and capture in fisheries needs to be defined.

Citation: Kyne, P.M. 2011. Cephaloscyllium cooki. The IUCN Red List of Threatened Species. Version 2015.2. <>. Downloaded on 04 September 2015.
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