Apristurus bucephalus, Bighead catshark

Apristurus bucephalus White, Last & Pogonoski, 2008

Bighead catshark
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Apristurus bucephalus   AquaMaps   Data sources: GBIF OBIS
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drawing shows typical species in Pentanchidae.

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (hajar och rockor) (sharks and rays) > Carcharhiniformes (Ground sharks) > Pentanchidae (Deepwater catsharks)
Etymology: Apristurus: Greek, a = without + Greek, pristis = saw + Greek, oura = tail (Ref. 45335);  bucephalus: Named for its large, broad head, Latin 'bu' for large and Greek 'kephalis' meaning of the head..  More on authors: White, Last & Pogonoski.

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

; marina djupbottenlevande; djupintervall 1030 - 1140 m (Ref. 76944).   Deep-water

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Eastern Indian Ocean: Western Australia.

Size / Vikt / Age

Maturity: Lm ?  range ? - ? cm
Max length : 67.5 cm TL (female)

Short description Morfologi | Morfometri

This moderately-large species has the following characters: labial furrows of upper and lower subequal in length; relatively short preorbital snout; very robust head, its width (at mouth corners) 13.9% TL; large mouth, its width 11.1% TL; large orbit, its length 3.7% TL; relatively long length of prepectoral and prepelvic; first dorsal fin is slightly smaller than second one, its origin well forward of pelvic fin insertion; tall anal fin, short based, triangular in shape; widely spaced dermal denticles, moderately large, deciduous, with long medial cusps; species size to at least 67.5 cm TL; uniformly medium yellowish brown body and fins ; about 66 teeth rows in upper jaw, about 55 rows in lower jaw; adult female teeth with 5 cusps, 1 very long medial cusp, 2 much shorter inner lateral cusps, 2 much shorter outer lateral cusps situated anteriorly to inner lateral cusps; 35 monospondylous vertebrae; 26 diplospondylous precaudal vertebrae; about 108 total vertebrae (Ref. 76944).

Biologi     Ordlista (t.ex. epibenthic)

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Main reference Upload your references | referenser | Koordinator | Medarbetare

White, W.T., P.R. Last and J.J. Pogonoski, 2008. Apristurus bucephalus sp. nov., a new deepwater catshark (Carcharhiniformes: Scyliorhinidae) from southwestern Australia. pp. 105-111. 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. 76944)

IUCN Red List Status (Ref. 123251)

  Data deficient (DD) ; Date assessed: 17 February 2015

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

Ytterligare information

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Estimates based on models

Preferred temperature (Ref. 115969): 3.2 - 4.9, mean 4.4 °C (based on 17 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00316 (0.00148 - 0.00675), b=3.09 (2.90 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trofisk nivå (Ref. 69278):  3.9   ±0.4 se; based on size and trophs of closest relatives
Resiliens (Ref. 120179):  Mycket låg, lägsta populationsfördubblingstid mer än 14 år (Fec assumed to be < 10).
Vulnerability (Ref. 59153):  Moderate to high vulnerability (45 of 100) .