Trigoniidae: Neotrigonia margaritacea  (Lamarck, 1804) ('pearly brooch-shell')  

Synonym(s): margaritacea Lamarck, 1804 bednalli Verco, 1907 antarctica Péron, 1807 horia Cotton, 1953 pectinata Lamarck, 1819.

Figures a -c: 34 mm, Black River Beach, TAS (N), coll. S. Grove. Figure d: 42 mm, Marion Bay, TAS (E), coll. S. Grove. Figure e: 21 mm, Black River Beach, TAS (N), coll. S. Grove. Figure f: 4 mm, Cape Barren Island (Tas N), coll. Sue Baker.

Typical shell-length 40 mm. Shell thick and heavy. The delicate pink pigment fades but the nacreous, often metallic sheen of the interior surface persists.  Lives subtidally and offshore in sand in moderately exposed environments.  Native. Endemic to southeastern and southwestern Australia (NSW, TAS, VIC, SA and WA).  In Tasmanian waters, this is a widespread species, but not common as a beached shell.


Information and disclaimer: The web-pages on this web-site are generated from an underlying database. These can be cited as Grove, S.J. (2017). A Guide to the Seashells and other Marine Molluscs of Tasmania web-site and database respectively. Whilst great care is taken to accurately identify specimens featured on this web-site and to allocate all records to the most appropriate taxonomic names available, no guarantee is offered that all identifications are accurate, nor that the taxa to which they have been allocated are currently valid. Commentaries on habitat, distribution and biology are also subject to change as new information comes to light. If you have any enquiries, or any comments that will help improve the content or appearance of these pages, then please follow the links from 'contact' on the left-hand panel.

Last build: Sun Jun 11 08:07:41 Tasmania Standard Time 2017