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Austrocochlea constricta facts for kids

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Austrocochlea constricta
Austrocochlea constricta 001.jpg
Drawing with two views of a shell of Austrocochlea constricta
Scientific classification
  • Austrocochlea obtusa Iredale, T. & McMichael, D.F. 1962
  • Austrocochlea porcata Iredale, T. & McMichael, D.F. 1962
  • Austrocochlea torri Cotton & Godfrey, 1934
  • Labio porcata Adams, 1853
  • Monodonta constricta Lamarck, 1822
  • Monodonta zebra Menke, 1829
  • Trochocochlea extenuatus Fischer, 1878
  • Trochococlea multicarinata Chenu, 1859
  • Trochus conctrictus (Lamarck, 1822)
  • Trochus obtusa Dillwyn, 1817
  • Trochus obtusus Hedley, C. 1917
  • Trochus taeniatus Quoy & Gaimard, 1834

Austrocochlea constricta, common names the southern periwinkle, common periwinkle, or ribbon monodonta, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.


The height of the shell varies between 15 mm and 32 mm, its diameter between 22 mm and 28 mm. The thick, solid shell is imperforate. Its color is a lusterless ashen or whitish, obscurely marked with black zigzag lines and stripes, or with spiral articulated zones or with spiral stripes of black. Sometimes it is nearly unicolored. The spire is conical with an acute apex. The about five whorls are convex. The first one is eroded, the penultimate is very strongly spirally tricostate. The body whorl has about seven strong carinae. The aperture is oblique. The outer and basal lips are either thick and multilirate within, or rather thin and slightly furrowed at the places of the principal carinae. The short columella is oblique, subdentate at its base and at the insertion spreading in a strong callus upon the parietal wall.


This marine species is endemic to Australia and occurs off New South Wales, South Australia, Tasmania, Victoria and Western Australia

  • Dillwyn, L.W. 1817. A descriptive catalogue of Recent shells, arranged according to the Linnaean method; with particular attention to the synonymy. London : John and Arthur Arch 2 volumes 1092 + 29 pp.
  • Menke, K.T. 1829. Verzeichniss der ansehnlischen Conchylien-Sammlung der Freiherrn von der Malsburg. Pyrmonti : Publisher not known pp. i-vi, 1-123
  • Quoy, J.R. & Gaimard, J.P. 1834. Voyage de Découvertes de l'Astrolabe exécuté par Ordre du Roi, Pendant les Années 1826-1829. Paris : J. Tastu Zoologie Vol. 3 366 pp.
  • Adams, A. 1853. Contributions towards a monograph of the Trochidae, a family of gastropodous Mollusca. Proceedings of the Zoological Society of London 1851(19): 150-192
  • Chenu, J.C. 1859. Manual de Conchyliologie et de Paléontologie Conchyliologique. Paris : V. Masson Vol. 1 i-vii, 508 pp
  • Tenison-Woods, J.E. 1877. Census; with brief descriptions of the marine shells of Tasmania and the adjacent islands. Papers and Proceedings of the Royal Society of Tasmania 1877: 3-34
  • Fischer, P. 1878. Genres Calcar, Trochus, Xenophora, Tectarius et Risella. pp. 241-336 in Keiner, L.C. (ed.). Spécies general et iconographie des coquilles vivantes. Paris : J.B. Baillière Vol. 11.
  • Pritchard, G.B. & Gatliff, J.H. 1902. Catalogue of the marine shells of Victoria. Part V. Proceedings of the Royal Society of Victoria 14(2): 85-138
  • Hedley, C. 1917. Studies on Australian Mollusca. Part XIII. Proceedings of the Linnean Society of New South Wales 41: 680-719
  • Cotton, B.C. & Godfrey, F.K. 1934. South Australian Shells. Part 13. South Australian Naturalist 1 16: 1-6
  • Cotton, B.C. 1959. South Australian Mollusca. Archaeogastropoda. Handbook of the Flora and Fauna of South Australia. Adelaide : South Australian Government Printer 449 pp.
  • Macpherson, J.H. 1962. Trochus obtusa confusion. Memoirs of the National Museum of Victoria 25: 173-176
  • 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
  • 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
  • Wilson, B. 1993. Australian Marine Shells. Prosobranch Gastropods. Kallaroo, Western Australia : Odyssey Publishing Vol. 1 408 pp
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