Welcome to the Monsecour Brothers specimen shells website!

 

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

Neoterebra armillata - (Hinds, 1844)
Mexico. WM. Puerto Penasco. in sand. April 1965.
F+ / 23mm
#51088
6.00 EUR
15 Apr 2026
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Semicassis bisulcata fma diuturna - (Schubert and Wagner, 1829)
India. SEI. off S Cuddalore. Trawled at 40m. January 1999.
F++ / 37mm
#42561
3.00 EUR
15 Apr 2026
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Semicassis bisulcata fma japonica - (Reeve, 1848)
Philippines. Cebu. March 2018.
F+ / 51mm
#46404
sipho imperfect
3.00 EUR
15 Apr 2026
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Semicassis bisulcata fma japonica - (Reeve, 1848)
Philippines. Cebu. March 2018.
F+ / 37mm
#46405
sipho imperfect
3.00 EUR
15 Apr 2026
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Fumiconus dictator - (Melvill, 1888)
India. SEI. Cuddalore. Trawled at 20m. January 1999.
F/F+ / 39mm
#56493
dorsal scar
8.00 EUR
15 Apr 2026
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Fumiconus dictator - (Melvill, 1888)
India. SEI. Cuddalore. Trawled at 20m. January 1999.
F++ / 39mm
#56492
10.00 EUR
15 Apr 2026
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Top shells

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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Naquetia fosteri - D'Attilio and Myers, 1987
Israel. Eilat. March 2005.
F++ / 71mm
#46976
w/o. Rare species in good condition.
1200.00 EUR
1 May 2024
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Cypraeovula castanea malani - Lorenz and De Bruin, 2009
South Africa. Agulhas area. Danger Point. Dived at 30-35m. April 2012.
F+ / 34mm
#44477
A nice rarity. A few small irregularities. Live-taken.
1500.00 EUR
8 Nov 2023
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Cassis patamakanthini - Parth, 2000
Australia. NWA. South Passage. By ROV at 90m.
F++ / 28mm
#42905
live-taken. Sipo very slightly rough.
1900.00 EUR
30 Jun 2023
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