Species Semicassis thomsoni (Brazier, 1875)

Museums

Regional Maps

• Cassis (Casmaria) thomsoni Brazier, J. 1875. Description of fourteen new species of terrestrial, fluviatile and marine shells from Australia and the Solomon Islands. Proceedings of the Linnean Society of New South Wales 1: 1-9 [8].

  Type data:

   Holotype AM C.111612 dry, 5 mls east of Sydney Heads, New South Wales, Australia [33°49'58.8"S, 151°22'58.8"E].
• Xenogalea thomsoni palinodia Iredale, T. 1931. Australian molluscan notes. No. 1. Records of the Australian Museum 18(4): 201–235, pls xxii–xxv [Date published 29 June] [215, pl. 23, fig. 20].

  Type data:

   Holotype AM C.57793 dry, Sydney Harbour, New South Wales, Australia [33°51'0"S, 151°13'58.8"E].

 

Generic Combinations

• Phalium thomsoni (Brazier, 1875). —
  Abbott, R.T. 1968. The helmet shells of the world (Cassidae). Part 1. Indo-Pacific Mollusca 2(9): 7-201 [178]
• Xenogalea thomsoni (Brazier, 1875). —
  Iredale, T. 1927. A review of Australian helmet shells (Family Cassididae - Phylum Mollusca). Records of the Australian Museum 15: 321-354 [342] (New combination)
• Semicassis (Semicassis) thomsoni (Brazier, 1875). —
  Wilson, B. 1993. Australian Marine Shells. Prosobranch Gastropods. Kallaroo, Western Australia : Odyssey Publishing Vol. 1 408 pp. [234, pl. 37, figs 4a-b]

 

Distribution

States

New South Wales, Queensland, Tasmania, Victoria

Extra Distribution Information

New Zealand

IBRA and IMCRA regions

IMCRA

Western Bass Strait Shelf Transition (34), Bass Strait Shelf Province (35), Southeast Shelf Transition (37), Central Eastern Shelf Province (38), Central Eastern Shelf Transition (39)

Ecological Descriptors

Continental shelf, marine.

Extra Ecological Information

35-180 m

 

General References

Abbott, R.T. 1968. The helmet shells of the world (Cassidae). Part 1. Indo-Pacific Mollusca 2(9): 7-201 [178-179, pl. 13, figs 14-15, pls 163-164]

Beechey, D. 2000. Semicassis thomsoni (Brazier, 1875). The seashells of New South Wales website. http://seashellsofnsw.org.au/Cassidae/Pages/semicassis_thomsoni.htm (date accessed 10/7/2012)

Garrard, T.A. 1961. Mollusca collected by M. V. "Challenger" off the east coast of Australia. Journal of the Malacological Society of Australia 5: 3–38 [16]

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 [56]

Kreipl, K. 1997. Recent Cassidae. Weisbaden : Verlag Christa Hemman 151 pp., pls 1-24. [62, pl. 23, fig. 75]

Macpherson, J.H. & Gabriel, C.J. 1962. Marine molluscs of Victoria. Melbourne : Melbourne University Press & National Museum of Victoria 475 pp. [149]

Mayblom, A.R. 1951. Deep-sea shells from New South Wales. The Australian Zoologist 11: 281-284, pl. 26 [281-282]

Wilson, B. 1993. Australian Marine Shells. Prosobranch Gastropods. Kallaroo, Western Australia : Odyssey Publishing Vol. 1 408 pp. [234, pl. 37, figs 4a-b]

Wilson, B.R. & Gillett, K. 1971. Australian shells: illustrating and describing 600 species of marine gastropods found in Australian waters. Sydney : Reed Books 168 pp. [70, pl. 49, figs 3-3b]

 

Common Name 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. [117, fig. 4] (Thomson's Helmet)

 

History of changes

Published	As part of group	Action Date	Action Type	Compiler(s)
01-Jun-2021	TONNOIDEA	10-Jul-2012	MODIFIED	Mr Des Beechey (AM) Ms Anouk Mututantri (AM)
		08-Mar-2012	MODIFIED