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Taxonomy
Family:
TRIVIIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Cypraeoidea (Superfamily)
> Triviidae (Family)
> Ellatrivia (Genus)
> merces (Species)
Genus Synonyms:
=Austrotrivia Fehse, 2002
=Fossatrivia Schilder, 1939
=Trivia J.E. Gray, 1837
=Niveria Jousseaume, 1884
Synonymised Names:
=Cypraea australis Lamarck, 1822
=Ellatrivia memorata (Finlay, 1926)
=Ellatrivia merces addenda Iredale, 1931
=Trivia merces (Iredale, 1924)
=Triviella maoriensis Mestayer, 1927
=Triviella memorata Finlay, 1926
=Triviella merces Iredale, 1924
Images: Ellatrivia merces (Iredale, 1924)
In beach drift, Taupiri Bay, Northland, NZ. 15mm
In a sheltered gut at extreme low tide, Northland, NZ. 13mm
On orange sponge in about 5 metres, Parengarenga Harbour, Far North, NZ
Parengarenga Harbour, Far North, NZ
Holotype of Triviella memorata Finlay, collected Ahipara, Far North, NZ (MA70775). © Auckland Museum (CC-BY)
Taxonomy
Family:
TRIVIIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Cypraeoidea (Superfamily)
> Triviidae (Family)
> Ellatrivia (Genus)
> merces (Species)
Genus Synonyms:
=Austrotrivia Fehse, 2002
=Fossatrivia Schilder, 1939
=Trivia J.E. Gray, 1837
=Niveria Jousseaume, 1884
Synonymised Names:
=Cypraea australis Lamarck, 1822
=Ellatrivia memorata (Finlay, 1926)
=Ellatrivia merces addenda Iredale, 1931
=Trivia merces (Iredale, 1924)
=Triviella maoriensis Mestayer, 1927
=Triviella memorata Finlay, 1926
=Triviella merces Iredale, 1924
Details: Ellatrivia merces (Iredale, 1924)
Size/Grows to:
Length 16mm, Width 11mm
Distribution:
North Island, far northern South Island (Arapawa Island), Chatham Islands and Mernoo Bank
Notes:
Bean Cowrie, Marine, Native - Non-endemic
Distribution Map
 
References and Publications
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.152)
  • Cernohorsky, W.O. 1971 Fossil and recent Cypraeacea (Mollusca: Gastropoda) of New Zealand with descriptions of new species, Records of the Auckland Institute and Museum, 8 (p.113)
  • Finlay, H. 1926 A Further Commentary on New Zealand Molluscan Systematics, Transactions and Proceedings of the Royal Society of New Zealand, 57 (p.396)

NZ Geographical Regions
Key to symbols used in Checklist.
Fw =
Freshwater
L =
Land
N =
North Island
S =
South Island
R =
Recent
Sf =
Subfossil
Fo =
Fossil
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