Introduction

The family Hexatrygonidae was first described by Heemstra & Smith (1980) to include a single species of deepwater rays known only from the Atlantic and Indo-west Pacific, from the continental slope. Little is known of the family, which is distinctive in having six gill slits and flabby skin. The species is treated in Last & Stevens (1994, 2009), Compagno & Last (1999), Compagno (2005), Séret & Carvalho (2016) and White et al. (2017).

General References

Compagno, L.J.V., Last, P.R., Stevens, J.D. & Alava, M.N.R. 2005. Checklist of Philippine Chondrichthys. CSIRO Marine Laboratory. Report 243: 1-103

Compagno, L.J.V. & Last, P.R. 1999. Family Hexatrygonidae. pp. 1477-2478 in Carpenter, K.E. & Niem, V.H. (eds). The Living Marine Resources of the Western Central Pacific. FAO Species Identification Guide for Fisheries Purposes. Rome : FAO Vol. 3 pp. 1397-2068.

Heemstra, P.C. & Smith, M.M. 1980. Hexatrygonidae, a new family of stingrays (Myliobatiformes: Batoidea) from South Africa, with comments on the classification of batoid fishes. Ichthyological Bulletin of the J.L.B. Smith Institute, Grahamstown 43: 1-17

Last, P.R. & Stevens, J.D. 1994. Sharks and Rays of Australia. Canberra : CSIRO Australia 513 pp. 84 pls.

Last, P.R. & Stevens, J.D. 2009. Sharks and Rays of Australia. Collingwood : CSIRO Publishing Australia 2, 550 pp.

Séret , B. & Carvalho, M.R. de 2016. Sixgill Stingrays. Family Hexatrygonidae. pp. 509-510 in Last, P.R., White, W.T., Carvalho, M.R. de, Séret, B., Stehmann, M.F.W. & Naylor, G.J.P. (eds.). Rays of the World. Clayton South, Victoria : CSIRO Publishing 790 pp.

White, W.T., Baje, L., Sabub, B., Appleyard, S.A., Pogonoski, J.J. & Mana, R.R. 2017. Sharks and Rays of Papua New Guinea. Australian Centre for International Agricultural Research Monograph Series 189: 1-327

Common Name References

Compagno, L.J.V. & Last, P.R. 1999. Family Hexatrygonidae. pp. 1477-2478 in Carpenter, K.E. & Niem, V.H. (eds). The Living Marine Resources of the Western Central Pacific. FAO Species Identification Guide for Fisheries Purposes. Rome : FAO Vol. 3 pp. 1397-2068. [1477] (FAO) (Sixgill Stingray)

Last, P.R. & Stevens, J.D. 1994. Sharks and Rays of Australia. Canberra : CSIRO Australia 513 pp. 84 pls. [43] (Sixgill Stingrays)

History of changes

• Hexatrygon Heemstra, P.C. & Smith, M.M. 1980. Hexatrygonidae, a new family of stingrays (Myliobatiformes: Batoidea) from South Africa, with comments on the classification of batoid fishes. Ichthyological Bulletin of the J.L.B. Smith Institute, Grahamstown 43: 1-17 [1].

  Type species:

   Hexatrygon bickelli Heemstra & Smith, 1980 by original designation.

Distribution

States

Queensland, Western Australia

Extra Distribution Information

Indo-west-central Pacific.

IMCRA

Northeast Province (18), Timor Province (2), Northwest Transition (3), Northwest Province (4)

General References

Séret , B. & Carvalho, M.R. de 2016. Sixgill Stingrays. Family Hexatrygonidae. pp. 509-510 in Last, P.R., White, W.T., Carvalho, M.R. de, Séret, B., Stehmann, M.F.W. & Naylor, G.J.P. (eds.). Rays of the World. Clayton South, Victoria : CSIRO Publishing 790 pp.

White, W.T., Baje, L., Sabub, B., Appleyard, S.A., Pogonoski, J.J. & Mana, R.R. 2017. Sharks and Rays of Papua New Guinea. Australian Centre for International Agricultural Research Monograph Series 189: 1-327

History of changes

• Hexatrygon bickelli Heemstra, P.C. & Smith, M.M. 1980. Hexatrygonidae, a new family of stingrays (Myliobatiformes: Batoidea) from South Africa, with comments on the classification of batoid fishes. Ichthyological Bulletin of the J.L.B. Smith Institute, Grahamstown 43: 1-17 [6, figs 1-13, 15].

  Type data:

   Holotype SAIAB 997, beach at Port Elizabeth, South Africa.

Miscellaneous Literature Names

• Hexatrygon sp. —
  Last, P.R. & Stevens, J.D. 1994. Sharks and Rays of Australia. Canberra : CSIRO Australia 513 pp. 84 pls. [445]

Distribution

States

Queensland, Western Australia

Extra Distribution Information

Off Flinder Reef, QLD and off Shark Bay to Exmouth Plateau, WA; tropical, Atlantic Indo-west-central Pacific

IMCRA

Northeast Province (18), Timor Province (2), Northwest Transition (3), Northwest Province (4)

Ecological Descriptors

Benthic, continental slope, marine.

Extra Ecological Information

360–1120 m.

General References

Compagno, L.J.V. & Last, P.R. 1999. Family Hexatrygonidae. pp. 1477-2478 in Carpenter, K.E. & Niem, V.H. (eds). The Living Marine Resources of the Western Central Pacific. FAO Species Identification Guide for Fisheries Purposes. Rome : FAO Vol. 3 pp. 1397-2068. [1477]

Daley, R.K., Stevens, J.D., Last, P.R. & Yearsley, G.K. 2002. Field Guide to Australian Sharks & Rays. Hobart : CSIRO Marine Research 84 pp. [77]

Hoese, D.F. & Bray, D.J. 2006. Hexatrygonidae. pp. 188-189 in Hoese, D.F., Bray, D.J., Paxton, J.R. & Allen, G.R. Fishes. In, Beesley, P.L. & Wells, A. (eds) Zoological Catalogue of Australia. Vol. 35. Volume 35 Australia : ABRS & CSIRO Publishing Parts 1-3, 2178 pp. [188]

Last, P.R. & Stevens, J.D. 1994. Sharks and Rays of Australia. Canberra : CSIRO Australia 513 pp. 84 pls. [445] (as H. sp.)

Last, P.R. & Stevens, J.D. 2009. Sharks and Rays of Australia. Collingwood : CSIRO Publishing Australia 2, 550 pp. [396]

Séret , B. & Carvalho, M.R. de 2016. Sixgill Stingrays. Family Hexatrygonidae. pp. 509-510 in Last, P.R., White, W.T., Carvalho, M.R. de, Séret, B., Stehmann, M.F.W. & Naylor, G.J.P. (eds.). Rays of the World. Clayton South, Victoria : CSIRO Publishing 790 pp. [510]

White, W.T., Baje, L., Sabub, B., Appleyard, S.A., Pogonoski, J.J. & Mana, R.R. 2017. Sharks and Rays of Papua New Guinea. Australian Centre for International Agricultural Research Monograph Series 189: 1-327 [222]

Common Name References

Compagno, L.J.V. & Last, P.R. 1999. Family Hexatrygonidae. pp. 1477-2478 in Carpenter, K.E. & Niem, V.H. (eds). The Living Marine Resources of the Western Central Pacific. FAO Species Identification Guide for Fisheries Purposes. Rome : FAO Vol. 3 pp. 1397-2068. [1477] (FAO) (Sixgill Stingray)

Seafood Services Australia 2008. Australian Fish Names Standard. http://www.fishnames.com.au/. (Sixgill Stingray)

Yearsley, G.K., Last, P.R. & Hoese, D.F. 2006. Standard names of Australian fishes. CSIRO Marine and Atmospheric Research Paper 9: 1-64 [17] (Sixgill Stingray)

History of changes