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Calthalotia fragum facts for kids

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Calthalotia fragum
Scientific classification
  • Calliostoma fragum (Philippi, 1848)
  • Calthalotia comtessa (Iredale, 1931)
  • Odontotrochus indistinctus Wood, 1828
  • Prothalotia comtessei Iredale, T., 1931
  • Thalotia comtessei Iredale, 1931
  • Thalotia marginata Tenison-Woods, 1879
  • Thalotia zebrides A. Adams, 1853
  • Trochus decoratus Philippi, 1846 (invalid: junior homonym of Trochus decoratus Hehl, 1832, and T. decoratus Michelotti, 1840)
  • Trochus fragum Philippi, 1848 (original combination)
  • Trochus indistinctus Wood, 1828
  • Trochus pyrgos Philippi, 1855
  • Zizyphius fragum Philippi, 1848

Calthalotia fragum, common name the spotted strawberry top shell or the comtesse's top shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.


The size of an adult shell of this species varies between 8 mm and 25 mm.


This marine species occurs off Southeast Australia, Queensland, Victoria, New South Wales and Japan.

  • Wood, W. 1828. Index Testaceologicus; or A Catalogue of Shells, British and Foreign, arranged according to the Linnean system. London : Taylor Supplement, 1-59, pls 1-8.
  • 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
  • Philippi, R.A. 1855. Trochidae. pp. 249–328 in Küster, H.C. (ed). Systematisches Conchylien-Cabinet von Martini und Chemnitz. Nürnberg : Bauer & Raspe Vol. 2.
  • Hedley, C. 1901. Studies on Australian Mollusca. Part IV. Proceedings of the Linnean Society of New South Wales 26: 16-25
  • 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.
  • 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
  • Short, J.W. & Potter, D.G. 1987. Shells of Queensland and The Great Barrier Reef. Drummoyne, NSW : Golden press Pty Ltd 135 pp., 60 pl.
  • Hickman, C.S. & McLean, J.H. 1990. Systematic revision and suprageneric classification of trochacean gastropods. Natural History Museum of Los Angeles County. Science Series 35: i-vi, 1-169
  • Wilson B. (1993) Australian marine shells. Prosobranch gastropods. Vol. 1. Odyssey Publishing, Kallaroo, Western Australia, 408 pp
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