Spikey Dogfish, Squalus megalops (Macleay 1881)

Other Names: Dog Shark, Dogshark, Greeneye, Piked Dogfish, Piked Spurdog, Shortnose Spiny Dogfish, Shortnose Spurdog, Shortnosed Spurdog, Skittle Dog, Skittle Dogfish, Spiked Dogfish, Spikey, Spikey Dog, Spiny Dogfish, Spur Dog, Spurdog, Tasmanian Dogfish

A Spikey Dogfish, Squalus megalops, off Ansons Bay, SE Tasmania, December 2016, depth about 80 m. Source: lachlanf / iNaturalist.org. License: CC by Attribution-NonCommercial

A schooling species found near the bottom.

Cite this page as:
Dianne J. Bray, Squalus megalops in Fishes of Australia, accessed 13 Jun 2024, https://fishesofaustralia.net.au/home/species/2017

Spikey Dogfish, Squalus megalops (Macleay 1881)

More Info


Known from tropical to temperate waters of Australia, from off Townsville, QLD, to off the North West Shelf, WA.

Elsewhere, with a discontinuous distribution - eastern South Atlantic, south-west Indian Ocean, west tropical Pacific.


Common prey items include a variety of bony fishes, other sharks and invertebrates (crustaceans, hard-shelled molluscs, cepahlopod molluscs, polychaete worms and brittlestars).


Ovoviviparous (aplacental viviparous), with 1-6 pups per litter 1-6 (usually two or three).

Species Citation

Acanthias megalops Macleay 1881, Proc. Linn. Soc. N. S. W. 1 6(2): 367. Type locality: Port Jackson, New South Wales.


Dianne J. Bray

Spikey Dogfish, Squalus megalops (Macleay 1881)


Braccini, J.M., Gillanders, B.M. & Walker, T.I. (2005). Sources of variation in the feeding ecology of the piked spurdog (Squalus megalops): implications for inferring predator–prey interactions from overall dietary composition. ICES Journal of Marine Science 62: 1076–1094. PDF Open Access

Braccini, J.M., Gillanders, B.M. & Walker, T.I. 2006. Determining reproductive parameters for population assessments of chondrichthyan species with asynchronous ovulation and parturition: piked spurdog (Squalus megalops) as a case study. Marine and Freshwater Research 57: 105–119. Abstract

Braccini, J.M. & Gillanders, B.M. & Walker, T.I. 2006. Hierarchical approach to the assessment of fishing effects on non-target chondrichthyans: case study of Squalus megalops in southeastern Australia. Canadian Journal of Fisheries and Aquatic Sciences 63(11): 2456-2466. Abstract

Braccini, J.M., Gillanders, B.M., Walker, T.I. & Tovar-Avila, J. 2007. Comparison of deterministic growth models fitted to length-at-age data of the piked spurdog (Squalus megalops) in south-eastern Australia. Marine and Freshwater Research 58: 24–33. Abstract

Cavanagh, R.D. & Lisney, T.J. (SSG Australia & Oceania Regional Workshop, March 2003) 2003. Squalus megalops. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 21 November 2012.

Coleman, N. 1980. Australian Sea Fishes South of 30ºS. Lane Cove, NSW : Doubleday Australia Pty Ltd 309 pp.

Compagno, L.J.V. 1984. FAO Species Catalogue. Sharks of the World. An annotated and illustrated catalogue of shark species known to date. Hexanchiformes to Lamniformes. FAO Fisheries Synopsis No. 125. Rome : FAO Vol. 4(1) pp. 1-249.

Compagno, L.J.V. & Niem, V.H. 1998. Hexanchidae, Echinorhinidae, Squalidae. pp. 1208-1232 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. 2 687-1396 pp.

Daley, R., Stevens, J. & Graham, K. 2002. Catch analysis and productivity of the deepwater dogfish resource in southern Australia. Report by CSIRO Marine Research and NSW Fisheries to the Fisheries Research and Development Corporation. FRDC Project 1998/108.

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..

Graham, K.J., Andrew, N.L. & Hodgson, K.E. 2001. Changes in the relative abundances of sharks and rays on Australian South East Fishery trawl grounds after twenty years of fishing. Journal of Marine and Freshwater Research 52: 549-561.

Hutchins, J.B. & Swainston, R. 1986. Sea Fishes of Southern Australia. Complete field guide for anglers and divers. Perth : Swainston Publishing 180 pp.

Last, P.R., Scott, E.O.G. & Talbot, F.H. 1983. Fishes of Tasmania. Hobart : Tasmanian Fisheries Development Authority 563 pp. figs.

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.

McCulloch, A.R. 1911. Report on the fishes obtained by the F.I.S. Endeavour on the coasts of New South Wales, Victoria, South Australia and Tasmania. Part 1. Zoological (Biological) Results. Endeavour 1(1): 1-87 figs 1-20 pls 1-16

Macleay, W.J. 1881. Descriptive catalogue of the fishes of Australia. Part 4. Proceedings of the Linnean Society of New South Wales 1 6(2): 202-387

Randall, J.E., Allen, G.R. & Steene, R. 1990. Fishes of the Great Barrier Reef and Coral Sea. Bathurst : Crawford House Press 507 pp. figs.

Rigby, CL, Daley, RK & Simpfendorfer, CA. 2015. Comparison of life histories of two deep-water sharks from eastern Australia: the piked spurdog and the Philippine spurdog. Marine and Freshwater Research - http://dx.doi.org/10.1071/MF15176 Abstract

Stead, D.G. 1963. Sharks and Rays of Australian Seas. Sydney : Angus & Robertson 211 pp. 63 figs.

Stevens, J.D. 1994. Families Echinorhinidae, Squalidae, Oxynotidae, Parascyllidae, Orectolobidae. pp. 91-118 figs 28-73 in Gomon, M.F., Glover, C.J.M. & Kuiter, R.H. (eds). The Fishes of Australia's South Coast. Adelaide : State Printer 992 pp. 810 figs.

Walker, T.I., Hudson, R.J. & Gason, A.S. 2005. Catch evaluation of target, byproduct, and bycatch species taken by gillnets and longlines in the shark fishery of south-eastern Australia. J. Northw. Atl. Fish. Sci. 35: 505–530. PDF

White, W. 2008. Shark Families Heterodontidae to Pristiophoridae. pp. 32-100 in Gomon. M.F., Bray, D.J. & Kuiter, R.H (eds). Fishes of Australia's Southern Coast. Sydney : Reed New Holland 928 pp.

Whitley, G.P. 1940. The Fishes of Australia. Part 1. The sharks, rays, devil-fish, and other primitive fishes of Australia and New Zealand. Sydney : Roy. Zool. Soc. N.S.W. 280 pp. 303 figs.

Yearsley, G.K., Last, P.R. & Ward, R.D. (eds) 1999. Australian Seafood Handbook. Hobart : CSIRO Marine Research 460 pp.

Quick Facts

CAAB Code:37020006

Behaviour:Schooling species

Biology:Aplacental viviparous

Conservation:IUCN: Data Deficient

Depth:1–580 m

Max Size:75 cm TL

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Species Maps

CAAB distribution map