Welcome to the Monsecour Brothers specimen shells website!

Our regular service will be discontinued from Sunday 26 July until Wednesday 12 August as we will alternatively be travelling. Therefore, there will be fewer updates and orders may take until mid-August before they are processed. We will of course try to catch up as soon as possible. Enjoy the summer holidays!

We are David and Kevin Monsecour, both shell collectors. Like most shell dealers the hobby grew and so many shells were acquired that we started selling shells next to our normal professions. We both specialised in different families, and almost don't have a general collection, so many of the species you can find on this site are not even in our own collections. Read more about us in the about us section.

A big part of our stock are shells from older collections we were able to buy in the past; there are some pieces that were once easy to get, but now very hard to obtain. We also have lots of fresh shells from all over the world. We have personal suppliers in Madagascar, the Philippines, Australia and regular input from other places.

All shells are selected and normally quality and size is indicated. The goal is to supply every sample of shells with a picture of one of the specimens available. This will most probably take some months, as the shell sales are next to our professions. When you want to see a not yet photographed shell or you want to know more about a shell with missing data, don't hesitate to contact us! We will supply you with photographs and place them online.

HAPPY SHELLING!
David & Kevin

Newest shells

Bursa corrugata pustulosa - Reeve, 1844
Sao Tomé. Kia Reef. Dived at 20-25m at night. September 2008.
F/F+ / 43mm
#13555
rather rough
6.00 EUR
11 Aug 2026
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Gibbula cineraria - Linnaeus, 1758
France. St. Malo. On weed at low tide. 1992.
F++ / 8mm
#2098
0.60 EUR
11 Aug 2026
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Margarella violacea - King & Broderip, 1835
Argentina. Falkland Current. Dredged at 240mJuly 2002.
F++ / 10mm
#2123
4.00 EUR
11 Aug 2026
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Clanculus flagellatus - Philippi, 1839
Australia. WA. Albany. King George Sound.June 1999.
F++ / 14mm
#12373
3.00 EUR
11 Aug 2026
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Calliostoma nordenskjoldi - Strebel, 1908
Argentina. Falkland Current. 36°S, 55°W. Dredged at 240m. July 2002.
F+ / 8mm
#2084
line on side.
10.00 EUR
11 Aug 2026
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Arca granosa - Linnaeus, 1758
Indonesia. Java. SJ. Detok. June 2001
F++ / 28mm
#9425
1.00 EUR
11 Aug 2026
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Top shells

Naria helvola helvola x citrina citrina
South Africa. Natal. Richards Bay. February 2003.
F++ / 25mm
#31197
Strong teeth and margins like helvola, mantle line and pattern like citrina.
25.00 EUR
7 Aug 2026
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Barycypraea fultoni fultoni - (Sowerby, 1903)
South Africa. Natal. Ramsgate. Dredged at 90m. 2017.
F++ / 60mm
#26901
Live-taken, very slender specimen with a very beautiful pattern. Shell slightly unequelly rounded. One tiny imperfection in the columellar callus, probably a repelled octopus attack.
6500.00 EUR
18 Jun 2026
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Tonna dolium - (Linnaeus, 1758)
Philippines. Palawan. From fishermen. April 2010.
F+ / 121mm
#22981
Freak specimen with almost flat spire and strongly angulated shoulders.
40.00 EUR
23 May 2026
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Zoila eludens eludens - Raybaudi, 1991
Australia. WA. Exmouth. Muiron islands. Dived on sponge at 25-30m.
F+++ / 69mm
#52809
High dorsum. Bulbous. Good colouration.
1600.00 EUR
4 Jun 2025
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Zoila jeaniana praeclara - Lorenz, 2020
Australia. WA. S Zuytdorp Cliffs. By ROV at 85m.
F++ / 69mm
#52806
Very nice colouration.
1950.00 EUR
4 Jun 2025
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Barycypraea fultoni fultoni - (Sowerby, 1903)
South Africa. Natal. Trafalgar. Trawled at 60-75m. 2021.
F+++ / 58mm
#52804
live-taken. High margins. Warm colours.
7450.00 EUR
4 Jun 2025
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