Semicassis thomsoni

Semicassis thomsoni
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Littorinimorpha
Superfamily:	Tonnoidea
Family:	Cassidae
Genus:	Semicassis
Species:	S. thomsoni
Binomial name
	Semicassis thomsoni; (Brazier, 1875)
Synonyms
	Cassis (Casmaria) thomsoni Brazier, 1876 (basionym); Cassis thomsoni Brazier, 1876 (original combination); Semicassis (Semicassis) thomsoni (Brazier, 1876) · alternate representation; Phalium (Xenogalea) thomsoni (Brazier, 1876); Xenogalea thomsoni (Brazier, 1876); Xenogalea thomsoni palinodia Iredale, 1931;

Semicassis thomsoni is a species of large predatory sea snail, a marine gastropod mollusc in the family Cassidae, the helmet shells and their allies.^[1]

Distribution

This marine species occurs in New Zealand.^[2] and in the Australian part of the Tasman Sea.

^ MolluscaBase eds. (2022). MolluscaBase. Semicassis thomsoni (Brazier, 1876). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=591489 on 2022-05-21
^ Powell A. W. B. (1979). William Collins Publishers Ltd, Auckland ISBN 0-00-216906-1.

Spencer, H.G., Marshall, B.A. & Willan, R.C. (2009). Checklist of New Zealand living Mollusca. pp 196–219. in: Gordon, D.P. (ed.) New Zealand inventory of biodiversity. Volume one. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia. Canterbury University Press, Christchurch.

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