Heterodontus galeatus (Günther, 1870)
Crested bullhead shark
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Heterodontus galeatus
Picture by Atkinson, W.
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Picture by Atkinson, W.
Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii (sharks and rays) > Heterodontiformes (Bullhead and horn sharks) > Heterodontidae (Bullhead, horn, or Port Jackson sharks)
Etymology: Heterodontus: Greek, heteros = other + Greek, odous = teeth (Ref. 45335).
Etymology: Heterodontus: Greek, heteros = other + Greek, odous = teeth (Ref. 45335).
Environment / Climate / Range Ecology
Marine; reef-associated; depth range 0 - 93 m (Ref. 54545). Temperate; 27°S - 35°S, 150°E - 155°E
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 70 - ? cm
Max length : 152 cm TL male/unsexed; (Ref. 247); common length : 122 cm TL male/unsexed; (Ref. 247); max. reported age: 12 years (Ref. 72467)
Max length : 152 cm TL male/unsexed; (Ref. 247); common length : 122 cm TL male/unsexed; (Ref. 247); max. reported age: 12 years (Ref. 72467)
Short description Morphology | Morphometrics
Dorsal
spines
(total): 2;
Dorsal
soft rays
(total): 0;
Anal
spines: 0;
Anal
soft rays: 0. Body with broad blackish bands or saddle markings (Ref. 9838).
Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions | Faunafri
Western Pacific: eastern Australia.
A moderately common benthic and epibenthic shark found on the continental shelf (Ref. 247, 43278). Occurs from close inshore to about 93 m depth (Ref. 247, 43278). Feeds primarily on sea urchins, but also on crustaceans, mollusks, and small fishes (Ref. 31369). Oviparous, egg cases spirally flanged and with long tendrils (Ref. 6871). Hatches at about 22 cm (Ref. 6871).
Main reference
Upload your references | References | Coordinator | Collaborators
Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome: FAO.
IUCN Red List Status (Ref. 90363)
Threat to humans
Traumatogenic
Human uses
Fisheries: minor commercial
FAO(fisheries: species profile; publication : search) | FisheriesWiki | Sea Around Us
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FAO areas
Ecosystems
Occurrences
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Ecology
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Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
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Spawning
Fecundity
Eggs
Egg development
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
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Abundance
Growth
Length-weight
Length-length
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Morphometrics
Morphology
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Larval dynamics
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References
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion
Tools
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Special reports
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Internet sources
BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | Public aquariums | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record
Estimates of some properties based on empirical models
Phylogenetic diversity index (Ref. 82805): PD50 = 0.5059 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (-0.16711 - 0.17489), b=3.12 (3.03 - 3.21), based on all LWR estimates for this BS (Ref. 93245).
Trophic Level (Ref. 69278): 3.7 ±0.53 se; Based on food items.
Resilience (Ref. 69278): Very Low, minimum population doubling time more than 14 years (tm=11.8).
Vulnerability (Ref. 59153): Very high vulnerability (87 of 100) .