Australian Biological Resources Study

Australian Faunal Directory


Regional Maps

Species Ostrea angasi Sowerby, 1871

Common Mud Oyster, Mud Oyster, Port Lincoln Oyster, Southern Flat Oyster, Stewart Island Oyster, Tasmanian Flat Oyster

Compiler and date details

December 2010 - Peter U. Middelfart, Winston F. Ponder & Des Beechey, Australian Museum, Sydney, NSW, Australia


Miscellaneous Literature Names




New South Wales, South Australia, Tasmania, Victoria, Western Australia

Extra Distribution Information

Australian Endemic.

IBRA and IMCRA regions (map not available)


Timor Transition (1), Northern Shelf Province (25), Northwest Shelf Transition (26), Northwest Shelf Province (27), Central Western Shelf Transition (28), Central Western Shelf Province (29), Southwest Shelf Transition (30), Southwest Shelf Province (31), Great Australian Bight Shelf Transition (32), Spencer Gulf Shelf Province (33), Western Bass Strait Shelf Transition (34), Bass Strait Shelf Province (35), Tasmanian Shelf Province (36), Southeast Shelf Transition (37), Central Eastern Shelf Province (38), Central Eastern Shelf Transition (39), Northwest Province (4), Central Western Transition (5)

Ecological Descriptors

Continental shelf, marine.

Extra Ecological Information

Generally attached to rock or debris to about 200 m


General References

Allan, J.K. 1950. Australian shells: with related animals living in the sea, in freshwater and on the land. Melbourne : Georgian House xix, 470 pp., 45 pls, 112 text figs. [273, fig. 1, text-fig. 67] (as Ostrea sinuata)

Beu, A.G. 2006. Marine Mollusca of oxygen isotope stages of the last 2 million years in New Zealand. Part 2. Biostratigraphically useful and new Pliocene to recent Bivalves. Journal of the Royal Society of New Zealand 36(4): 151-338 [210]

Coleman, N. 1981. What shell is that? Sydney : Lansdowne Press, Sydney 308 pp. [30, pl. 63]

Cotton, B.C. 1957. Records of uncommon southern Australian Mollusca. Records of the South Australian Museum (Adelaide) 13(1): 117-130 [129] (as Ostrea sinuata)

Cotton, B.C. 1961. South Australian Mollusca. Pelecypoda. Adelaide : W.L. Hawes, Government Printer 363 pp. [Date published Oct: Handbook of the Flora and Fauna of South Australia Series] [84-85, figs 71, 72] (as Ostrea sinuata)

Hurwood, D.A., M.P. Heasman & P.B. Mather 2005. Gene flow, colonisation and demographic history of the flat oyster Ostrea angasi. Marine and Freshwater Research 56: 1099-1106

Iredale, T. 1924. Results from Roy Bell's molluscan collections. Proceedings of the Linnean Society of New South Wales 49(3): 179–279, pls 33–36 [191]

Iredale, T. 1936. Australian molluscan notes. No. 2. Records of the Australian Museum 19(5): 267-340, pls 20-24 [269] (O. angasi assumed extinct)

Iredale, T. & McMichael, D.F. 1962. A reference list of the marine Mollusca of New South Wales. Memoirs of the Australian Museum 11: 1–109 [12]

Kenchington, E., Bird, C.J., Osborne, J. & Reith, M. 2002. Novel repeat elements in the nuclear ribosomal RNA operon of the flat oyster Ostrea edulis C. Linneaus, 1758 and O. angasi Sowerby, 1871. Journal of Shellfish Research 21: 697-705 (concludes that Ostrea angasi and Ostrea edulis are conspecific. The flow on effects of this taxonomic concept needs to be addressed)

Kirkendale, L., Lee, T., Baker, P. & ÓFoighil, D. 2004. Oysters of the Conch Republic (Florida Keys): a molecular phylogenetic study of Parahyotissa mcginty, Teskeyostrea weberi and Ostreola equestris. Malacologia 46(2): 309-326

Lamprell, K. & Healy, J. 1998. Bivalves of Australia. Leiden : Backhuys Publishers Vol. 2 288 pp. [132]

Li, X.X. & Havenhand, J.N. 1997. Karyotype, nucleolus organiser regions and constitutive heterochromatin in Ostrea angas (Molluscae: Bivalvia): evidence of taxonomic relationships within the Ostreidae. Marine Biology 127(3): 443-448

Ludbrook, N.H. 1984. Quaternary molluscs of South Australia. South Australian Department of Mines and Energy, Handbook 9: 1-327 [167, figs 40b, 71a]

Macpherson, J.H. & Gabriel, C.J. 1962. Marine molluscs of Victoria. Melbourne : Melbourne University Press & National Museum of Victoria 475 pp. [310-312, fig. 353]

Oliver, W.R.B. 1923. Notes on New Zealand pelecypods. Proceedings of the Malacological Society of London 15(4): 179-188 [156]

Phillips, D.A.B., Handreck, C., Bock, P.E., Burn, R., Smith, B.J. & Staples, D.A. (eds) 1984. Coastal Invertebrates of Victoria: an atlas of selected species. Melbourne : Marine Research Group of Victoria & Museum of Victoria 168 pp. [86, text fig]

Pritchard, G.B. & Gatliff, J.H. 1904. Catalogue of the Marine Shells of Victoria. Part VIII. Proceedings of the Royal Society of Victoria n.s. 17(1): 220-266 [266]

Tate, R. 1887. A revision of the Recent lamellibranch and palliobranch Mollusca of South Australia. Transactions and Proceedings and Report of the Royal Society of South Australia 9: 76-111 [110]

Thomson, J.M. 1954. The genera of oysters and the Australian species. Australian Journal of Marine and Freshwater Research 5(1): 132-168 [143-145, pl. 1, figs 1-3]

Wang, Y. & Guo, X. 2008. ITS length polymorphism in oysters and ITS use in species identification. Journal of Shellfish Research 27(3): 489-493

Wells, F.E. & Bryce, C.W. 1986. Seashells of Western Australia. Perth : Western Australian Museum 207 pp. [162]


History of changes

Note that this list may be incomplete for dates prior to September 2013.
Published As part of group Action Date Action Type Compiler(s)
22-Aug-2023 BIVALVIA 22-Aug-2023 MOVED Mr Des Beechey Ingo Burghardt Ms Anouk Mututantri (AM)
11-Aug-2014 28-Jul-2014 MOVED
11-Aug-2014 OSTREOIDEA 01-Feb-2011 MOVED Dr Winston Ponder (AM) Mr Des Beechey (AM) Dr Peter Middelfart (AM)
07-Jan-2011 MODIFIED