Cephaloscyllium hiscosellum, Australian reticulate swellshark

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Cephaloscyllium hiscosellum White & Ebert, 2008

Australian reticulate swellshark
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Cephaloscyllium hiscosellum   AquaMaps   Data sources: GBIF OBIS
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Image of Cephaloscyllium hiscosellum (Australian reticulate swellshark)
Cephaloscyllium hiscosellum
Male picture by White, W.T. & D.A. Ebert

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Carcharhiniformes (Ground sharks) > Scyliorhinidae (Cat sharks) > Scyliorhininae
Etymology: Cephaloscyllium: cephalus, from kephale (Gr.), head, referring to its very broad and depressed head; skylion, Greek for dogfish or small shark. (See ETYFish);  hiscosellum: hisco (L.), open; sella (L.), saddle, referring to distinctive open-centered saddle-like markings that dominate its color pattern. (See ETYFish).

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; bathypelagic; depth range 294 - 420 m (Ref. 76949). Subtropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Eastern Indian Ocean: Australia.

Length at first maturity / Size / Weight / Age

Maturity: Lm 46.0, range 46 - 46.3 cm
Max length : 46.3 cm TL male/unsexed; (Ref. 76949); 52.0 cm TL (female)

Short description Morphology | Morphometrics

A small species with the following characters: head 8.9-13.1% TL in height, trunk width 12.9-19.1% TL; origin of first dorsal-fin usually over mid pelvic-fin base; prenarial length 4.5-5.2% TL; preorbital snout length 1.4-1.6 times prenarial length, 2.6-3.1 in prepectoral length, 5.9-6.7 in prepelvic length; snout-vent length long, 46.2-51.2% TL; nostril 2.5-3.1% TL in width; eye-spiracle space wide, 0.8-1.2% TL; pectoral fin moderate-sized, height 8.7-12.2% TL, posterior margin length 7.4-11.4% TL; anal fin relatively low, height 2.8-3.7% TL; anal-caudal space 5.4-6.5% TL; precaudal length 76.4-79.2% TL; interdorsal space 7.4-9.6% TL; teeth with 3-5 cusps near symphysis of upper jaw; flank denticles are mainly unicuspidate; back without greatly enlarged denticles; long adult clasper, up to 9.3% TL, reaching anal-fin origin; vertebral centra 100-108; low tooth count, each jaw with teeth between 45 and 63; dorsal surface with a striking pattern of dark brown, open-centered saddles (Ref. 76949).

Biology     Glossary (e.g. epibenthic)

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Compagno, Leonard J.V. | Collaborators

White, W.T. and D.A. Ebert, 2008. Cephaloscyllium hiscosellum sp. nov., a new swell shark (Carcharhiniformes: Scyliorhinidae) from Northwestern Australia. pp. 147-157. In P.R. Last, W.T. White and J.J. Pogonoski (eds). Descriptions of new Australian chondrichthyans. CSIRO Marine and Atmospheric Research Paper no. 22. 365 p. (Ref. 76949)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 23 April 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

Countries
FAO areas
Ecosystems
Occurrences
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Ecology
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Food consumption
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Common names
Synonyms
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Predators
Ecotoxicology
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Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
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Morphometrics
Morphology
Larvae
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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 7.7 - 12.5, mean 11.8 °C (based on 14 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00263 (0.00139 - 0.00497), b=3.21 (3.04 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  4.0   ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  Low, minimum population doubling time 4.5 - 14 years (Preliminary low fecundity).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (41 of 100).