Hexanchus nakamurai

TENG, 1962


Bigeye sixgill shark
Classification: Elasmobranchii Hexanchiformes Hexanchidae

Reference of the original description
TENG, H.-T. (1962)
Classification and distribution of the Chondrichthyes of Taiwan. Ogawa Press, Japan, pp. 1–304, figs 1–77

Synonyms / new combinations and misspellings
Hexanchus aff. nakamurai, Hexanchus griseus nakamurai

Types
Hexanchus nakamurai
Holotype: TFRI: 2515; Paratype: TFRI: 3280; Neotype: NMMB: P15835;


Description :


Citation: Hexanchus nakamurai TENG, 1962: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 02/2019

Please send your images of "Hexanchus nakamurai" to info@shark-references.com

Hexanchus nakamurai TENG, 102 mm TL; Locality: New Caledonia, Nouméa; female; 03.07.2008; Weight: 3600 g.; identified by Bernard Séret, IRD-MNHN, Paris; © Prof. Jean-Lou Justine, Paris
Common names
spa Cazón de fondo, spa Cazón de seis branquias, spa Cañabota ojigrande, spa Marrajo Ojigrande, fra \(T\) Griset, fra \(T\) Requin-vache, eng Bigeye sixgill shark, eng Bigeyed sixgill shark, por Canhabota olho grande

Short Description
A small, slim, six-gilled cowshark, with a narrow head and large eyes [536]. Snout bluntly pointed, body fusiform [1388]. Dorsal fin relatively small, origin varying from over posterior half of pelvic fin base to just behind pelvic fin insertion [1388]. Anal fin smaller than dorsal fin [1388]. Live specimens with fluorescent green eyes [1388]. Brownish grey dorsally, paler ventrally [1388]. Fins with white trailing edges [20040].

Distribution
Indian Ocean: off eastern and southern Africa [544], Aldabra Island (India); Western Australia [1388]. Western Pacific: Japan, Taiwan, Philippines, New Caledonia and eastern Australia [544]. Source: www.gbif.org

Human uses
fisheries: subsistence fisheries

Biology
Ovoviviparous, with number of young 13 in one litter. Length at birth about 43 cm [518]. Distinct pairing with embrace [17086]. Found on the continental shelf and slope (Ref. 75154).

Size / Weight / Age
180 cm TL (male/unsexed; [518]); born about 43 cm [3365]

Habitat
bathydemersal; marine; depth range 0 - 600 m [536], usually 90 - 600 m (Ref. 6874)

Dentition
18/11 [3365]

Remarks
shark-references Species-ID=2861;

Parasites (arranged by Jürgen Pollerspöck)
Monogenea
  • Protocotyle euzetmaillardi JUSTINE, 2011 [14443]

Cestoda
  • Paragrillotia apecteta BEVERIDGE & JUSTINE, 2007 [12209]

Isopoda
  • Aega angustata WHITELEGGE, 1901 [16094]