Welcome to the Monsecour Brothers specimen shells website!


SEARCH FUNCTION: you find on the top right a search function where you can search on a genus name or on a species name! species name without a genus will do.

SORTING FUNCTION: in every family you can now choose to get the shell list in different orders: standard it is alphabetically on genus, but you can also choose to sort on species names or on value. 


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.

David & Kevin

Newest shells

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Cymatium pfeifferianum - Reeve, 1844
India. SEI. off Kanyakumari. Trawled at 5m. February 2000.
F/F+  /  58¬≤mm
first whorls gone. Nice size.
8.00 EUR
30 May 2023
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Kioconus typhon - (Kilburn, 1975)
South Africa. Natal. South Coast. From scuba diver. August 2015.
F++  /  38mm
w/o. from southern Natal
28.00 EUR
30 May 2023
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Kioconus typhon - (Kilburn, 1975)
South Africa. off Natal South coast. Dived at 45-50m. July 2011.
F  /  36mm
dead-taken or serious lip damage.
10.00 EUR
30 May 2023
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Propeamusium caducum - Smith, 1885
Taiwan. SWT Channel. Dredged. June 1999
F+  /  14mm
7.00 EUR
30 May 2023
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Ranularia pyrulum - (Adams and Reeve, 1850)
Philippines. Cebu. Mactan island. In tangle nets. July 1999.
F+  /  61mm
23.00 EUR
29 May 2023

Top shells

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Phalium evdoxiae - Morrison, 2016
Australia. Joseph Bonaparte Gulf. off Kimberleys. 110m deep. From prawn fishermen. 2022.
F+  /  82mm
Very nice specimen of the most recently described and rarest Phalium.
420.00 EUR
15 Mar 2023
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Zoila eludens eludens - Raybaudi, 1991
Australia. WA. Exmouth. Murion island. Dived on sponges at 35-40m. 2017.
F++  /  64mm
small line under callus in aperture. High back,nicely rounded. Dense pattern.
1200.00 EUR
5 Nov 2022
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Cassis tuberosa - (Linnaeus, 1758)
Bahamas, South Andros, Kemps Bay, Dived at 5-15m, January 2013.
F+  /  151mm
w/o. Nice specimen with good canal, some erosion on upper knob.
40.00 EUR
18 Oct 2022
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Athleta kilburni - (Rehder, 1974)
South Africa. Natal. off Durban. Trawled at 500m. August 1980.
F++  /  37mm
350.00 EUR
14 Oct 2022
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Helicophanta bicingulata - Smith, 1882
Madagascar. Farafangana.
F++  /  66mm
w/cuticle. The very shell pictured in Poppe & Groh: A Conchological Iconography - Acavidae. Plate 33, nr. 1
35.00 EUR
8 Aug 2022