Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Scyliorhinidae (Cat sharks)
Etymology: Cephaloscyllium: Greek, kephale = head + skylion = dogfish (Ref. 80388); cooki: Named for Sid Cook.. More on author: Last.
Environment / Climate / Range
Ecology
Marine; benthopelagic; depth range 223 - 300 m (Ref. 76946). Tropical, preferred ?
Western Pacific: Australia and Indonesia.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 29.5 cm TL male/unsexed; (Ref. 76946)
Short description
Morphology | Morphometrics
This small species has the following set of characters: relatively robust body, head height 10.5-14.2% TL, trunk width 17.1-21.7% TL; origin of first dorsal-fin over the centre or posterior half of pelvic-fin base; prenarial 4.9-5.5% TL in length; preorbital snout length 1.3-1.6 times the prenarial length, 2.5-3.1 in prepectoral length, 5.5-6.6 in prepelvic length; snout-vent length is short, 45.4-49.3% TL; wide nostrils, the width 3.0-3.4% TL; eye-spiracle space wide, 1.0-1.2% TL; small pectoral fin, height 9.4-10.2% TL, posterior margin 8.9-9.8% TL; anal fin low 2.8-3.4% TL; caudal peduncle long, anal-caudal space 6.3-6.9% TL; teeth mainly with 3 cusps near symphysis of upper jaw; mainly weakly tricuspidate are the flank denticles; back without greatly enlarged denticles; very long adult clasper, its outer length to at least 10% TL, almost reaching anal fin, interspace 0.9-1.0% TL; vertebral centra 101-106; tooth count low, 48-62 teeth in each jaw; 8 dark, white-edged saddles on the upper half of body, tail and caudal fin; under-surface mainly uniform greyish, with the snout darkest (Ref. 76946).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Last, P.R., B. Séret and W.T. White, 2008. New swellsharks (Cephaloscyllium: Scyliorhinidae) from the Indo-Australian region. In Last, P.R., White, W.T. & Pogonoski, J.J. (eds.): Descriptions of New Australian Chondrichthyans. CSIRO Marine and Atmospheric Research Paper no. 22. (Ref. 76946)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 94142)
Not Evaluated
Threat to humans
Harmless
Human uses
More information
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
Age/SizeGrowthLength-weightLength-lengthLength-frequenciesMorphometricsMorphologyLarvaeLarval dynamicsRecruitmentAbundance
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
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Estimates of some properties based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00324 (0.00157 - 0.00666), b=3.11 (2.93 - 3.29), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic Level (Ref.
69278): 3.8 ±0.5 se; Based on size and trophs of closest relatives
Resilience (Ref.
69278): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref.
59153): Low to moderate vulnerability (30 of 100) .
