Apristurus bucephalus, Bighead catshark

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Apristurus bucephalus White, Last & Pogonoski, 2008

Bighead catshark
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Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Apristurus bucephalus   AquaMaps   Data sources: GBIF OBIS
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Image of Apristurus bucephalus (Bighead catshark)
No image available for this species;
drawing shows typical species in Pentanchidae.

Classificatie / Names Populaire namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (haaien en roggen) (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 Ecologie

; marien bathydemersaal; diepteverspreiding 1030 - 1140 m (Ref. 76944), usually - m (Ref. ).   Deep-water; 0°C -

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Eastern Indian Ocean: Western Australia.

Size / Gewicht / Leeftijd

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

Korte beschrijving Morfologie | Morfometrie

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).

Biologie     Verklarende woordenlijst (b.v. epibenthic)

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

Voornaamste referentie Upload your references | Referenties | Coördinator | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 124695)

  Onvoldoende gegevens (DD) ; Date assessed: 17 February 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Harmless





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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=0.00324 (0.00154 - 0.00678), b=3.09 (2.90 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.9   ±0.4 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref. 120179):  zeer laag, minimale populatieverdubbelingstijd meer dan 14 jaar (Fec assumed to be < 10).
Kwetsbaarheid (Ref. 59153):  Moderate to high vulnerability (45 of 100) .