WoRMS taxon details
Hexanchidae Gray, 1851
Genus Heptranchias Rafinesque, 1810
Genus Hexanchus Rafinesque, 1810
Genus Notorynchus Ayres, 1855
Genus Heptanchus Müller & Henle, 1841 accepted as Heptranchias Rafinesque, 1810
Genus Heptrachias accepted as Heptranchias Rafinesque, 1810 (misspelling)
Genus Heptranchus accepted as Heptranchias Rafinesque, 1810 (unaccepted > misspelling)
Genus Heptrancus accepted as Heptranchias Rafinesque, 1810 (misspelling)
Genus Monopterhinus de Blainville, 1816 accepted as Hexanchus Rafinesque, 1810 (synonym)
Genus Monopterinus accepted as Monopterhinus de Blainville, 1816 accepted as Hexanchus Rafinesque, 1810 (misspelling)
Genus Notidanus Cuvier, 1816 accepted as Hexanchus Rafinesque, 1810
Genus Notorhynchus accepted as Notorynchus Ayres, 1855 (misspelling)
Genus Hexanchus Rafinesque, 1810
Genus Notorynchus Ayres, 1855
Genus Heptanchus Müller & Henle, 1841 accepted as Heptranchias Rafinesque, 1810
Genus Heptrachias accepted as Heptranchias Rafinesque, 1810 (misspelling)
Genus Heptranchus accepted as Heptranchias Rafinesque, 1810 (unaccepted > misspelling)
Genus Heptrancus accepted as Heptranchias Rafinesque, 1810 (misspelling)
Genus Monopterhinus de Blainville, 1816 accepted as Hexanchus Rafinesque, 1810 (synonym)
Genus Monopterinus accepted as Monopterhinus de Blainville, 1816 accepted as Hexanchus Rafinesque, 1810 (misspelling)
Genus Notidanus Cuvier, 1816 accepted as Hexanchus Rafinesque, 1810
Genus Notorhynchus accepted as Notorynchus Ayres, 1855 (misspelling)
marine, brackish, terrestrial
Not documented
Distribution Distribution: Atlantic, Indian, and Pacific Oceans. Most species are deepwater inhabitants of the outer continental shelves...
Distribution Distribution: Atlantic, Indian, and Pacific Oceans. Most species are deepwater inhabitants of the outer continental shelves and upper continental slopes down to at least 1875 m depth. Gill openings 6 in Hexanchus, 7 in Heptranchias and Notorynchus. Margin of first gill discontinuous across throat. Mouth subterminal with large, bladelike, comb-shaped teeth in lower jaw. One dorsal fin. Caudal fin with strong subterminal notch. Cow sharks are ovoviviparous and lack a yolk-sac placenta. They feed on relatively large marine organisms, including other sharks, rays, bony fish, crustacean and carrion. Species range in size from 140 to 480 cm. hexa- (gr.) = six [details]
Froese, R. and D. Pauly. Editors. (2023). FishBase. Hexanchidae Gray, 1851. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=105699 on 2023-06-05
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taxonomy source
Van Der Laan, R.; Eschmeyer, W. N.; Fricke, R. (2014). Family-group names of Recent fishes. <em>Zootaxa.</em> 3882(1): 1-230., available online at https://doi.org/10.11646/zootaxa.3882.1.1 [details] Available for editors 
[request]
basis of record van der Land, J.; Costello, M.J.; Zavodnik, D.; Santos, R.S.; Porteiro, F.M.; Bailly, N.; Eschmeyer, W.N.; Froese, R. (2001). Pisces, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i> 50: pp. 357-374 (look up in IMIS) [details]
additional source Fricke, R., Eschmeyer, W. N. & Van der Laan, R. (eds). (2022). ECoF. Eschmeyer's Catalog of Fishes: Genera, Species, References. <em>California Academy of Sciences. San Francisco.</em> Electronic version accessed dd mmm 2022., available online at http://researcharchive.calacademy.org/research/Ichthyology/catalog/fishcatmain.asp [details]
[request] basis of record van der Land, J.; Costello, M.J.; Zavodnik, D.; Santos, R.S.; Porteiro, F.M.; Bailly, N.; Eschmeyer, W.N.; Froese, R. (2001). Pisces, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i> 50: pp. 357-374 (look up in IMIS) [details]
additional source Fricke, R., Eschmeyer, W. N. & Van der Laan, R. (eds). (2022). ECoF. Eschmeyer's Catalog of Fishes: Genera, Species, References. <em>California Academy of Sciences. San Francisco.</em> Electronic version accessed dd mmm 2022., available online at http://researcharchive.calacademy.org/research/Ichthyology/catalog/fishcatmain.asp [details]
Present Inaccurate Introduced: alien Containing type locality
From other sources
Distribution Distribution: Atlantic, Indian, and Pacific Oceans. Most species are deepwater inhabitants of the outer continental shelves and upper continental slopes down to at least 1875 m depth. Gill openings 6 in Hexanchus, 7 in Heptranchias and Notorynchus. Margin of first gill discontinuous across throat. Mouth subterminal with large, bladelike, comb-shaped teeth in lower jaw. One dorsal fin. Caudal fin with strong subterminal notch. Cow sharks are ovoviviparous and lack a yolk-sac placenta. They feed on relatively large marine organisms, including other sharks, rays, bony fish, crustacean and carrion. Species range in size from 140 to 480 cm. hexa- (gr.) = six [details]
