Australian Biological Resources Study

Australian Faunal Directory


Regional Maps

Species Anadara (Anadara) trapezia (Deshayes, 1840)

Mud Ark, Sydney Cockle, Trapezoid Mud Ark

Compiler and date details

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

August 2002 - Peter U. Middelfart, Australian Museum, Sydney, NSW, Australia




New South Wales, Queensland, Victoria, Western Australia

Extra Distribution Information

Population in WA is an isolated instance; generally thought to have recently become extinct along SA and WA

Australian Endemic.

IBRA and IMCRA regions (map not available)


Southwest Shelf Province (31), Bass Strait Shelf Province (35), Southeast Shelf Transition (37), Central Eastern Shelf Province (38), Central Eastern Shelf Transition (39), Northeast Shelf Province (40)

Ecological Descriptors

In mud, in sand, intertidal.


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. [255]

Coleman, N. 1981. What shell is that? Sydney : Lansdowne Press, Sydney 308 pp. [14, fig. 8]

Cotton, B.C. 1957. Records of uncommon southern Australian Mollusca. Records of the South Australian Museum (Adelaide) 13(1): 117-130 [128]

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] [44, text fig 25]

Crozier, M. 1962. New Zealand occurences of the Sydney Mud Cockle, Anadara trapezia (Deshayes). Records of the Dominion Museum 4(13): 143-148 [143-148] (discussion of recent fossil records in New Zealand)

Gatliff, J.H. & Gabriel, C.J. 1908. Additions to and revision of the Catalogue of Victorian marine Mollusca. Proceedings of the Royal Society of Victoria n.s. 21(1): 368–391 [389]

Hedley, C. 1908. Studies on Australian Mollusca. Part 10. Proceedings of the Linnean Society of New South Wales 33: 456–489 [471]

Hedley, C. 1918. A checklist of the marine fauna of New South Wales. Part 1. Journal and Proceedings of the Royal Society of New South Wales 51: M1–M120 [M5] (as Arca trapezia)

Huber, M. 2010. Compendium of Bivalves. A full-color guide to 3,300 of the world's marine bivalves. A status on Bivalvia after 250 years of research. Hackenheim, Germany : ConchBooks 901 pp., 1 CD-ROM. [137, text fig.]

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 [8]

Lamprell, K. & Healy, J. 1998. Bivalves of Australia. Leiden : Backhuys Publishers Vol. 2 288 pp. [54, fig. 77]

Ludbrook, N.H. 1978. Quaternary molluscs of the western part of the Eucla Basin. Bulletin of the Geological Survey of Western Australia 125: 1–286 [38]

Ludbrook, N.H. 1984. Quaternary molluscs of South Australia. South Australian Department of Mines and Energy, Handbook 9: 1-327 [144, figs 61, 69a, b]

Macpherson, J.H. 1966. Port Phillip Survey 1957–1963. Memoirs of the National Museum of Victoria, Melbourne 27: 201–288 [228-229]

Macpherson, J.H. & Gabriel, C.J. 1962. Marine molluscs of Victoria. Melbourne : Melbourne University Press & National Museum of Victoria 475 pp. [274, fig 313]

May, W.L. 1921. A Checklist of the Mollusca of Tasmania. Hobart, Tasmania : Government Printer 114 pp. [8]

May, W.L. 1923. An illustrated index of Tasmanian shells: with 47 plates and 1052 species. Hobart : Government Printer 100 pp. [Date published 31 July 1923] [pl. 2, fig. 4]

McMichael, D.F. 1960. Shells of the Australian sea-shore. Brisbane : Jacaranda Press 127 pp., 287 figs. [Date published December] [18]

Murray-Wallace, C.V., Beu, A.G., Kendrick, G.W., Brown, L.J., Belperio, A.P. & Sherwood, J.E. 2000. Palaeoclimatic implications of the occurrence of the arcoid bivalve Anadara trapezia (Deshayes) in the Quaternary of Australasia. Quaternary Science Reviews 19(6): 559-590 [559-590] (distribution)

Oliver, W.R.B. 1923. Notes on New Zealand pelecypods. Proceedings of the Malacological Society of London 15(4): 179-188 [183]

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. [81]

Plant, R.J. 1957. Existing beds of the bivalve Anadara trapezia Deshayes 1840 in Westernport Bay, Victoria. Journal of the Malacological Society of Australia 1: 34-35 [34-35]

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 [242] (bibliography, observations)

Sullivan, G.E. 1961. Functional morphology, micro-anatomy, and histology of the 'Sydney Cockle', Anadara trapezia (Deshayes) (Lamellibranchia: Arcidae). Australian Journal of Zoology 9(2): 219-257 [219-257]

Tenison-Woods, J.E. 1888. On the anatomy and life history of Mollusca peculiar to Australia. Journal and Proceedings of the Royal Society of New South Wales 22: 106-187 [123]

Wells, F.E. & Bryce, C.W. 1986. Seashells of Western Australia. Perth : Western Australian Museum 207 pp. [148, fig. 549]


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)
28-Jul-2014 28-Jul-2014 MOVED
29-Jan-2013 29-Jan-2013 MODIFIED
07-Aug-2012 14-Aug-2012 MODIFIED
07-Aug-2012 01-Oct-2010 MODIFIED
14-Sep-2010 MODIFIED