Dear Yves and other aspidolisters,


This is very sad news indeed, my sincere wishes to his family and friends. Co-incidentally, I only discovered a few weeks ago that Claude’s paper 1986 on cucumbers on Laing Island, PNG,   was the first paper I ever copied and read in preparation for my  Honours thesis. It still has running number ‘1’ in my database.


Best wishes






Dr Sven Uthicke

Principal Research Scientist

Australian Institute of Marine Science

PMB 3 | Townsville MC QLD 4810 | Australia

ph. ++61 7 4753 4483 |  mob. 0447825604

Google Scholar Profile:




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Sent: Monday, 13 September 2021 9:50 AM
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Subject: Re: Claude, ... Dr Claude Massin


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Dear Yves,

Thank you for passing on this news, and very sad indeed to read about Claude’s passing. Chantal had told me that he been going through health problems for some years.

What an impressive legacy he leaves us on the ecology and taxonomy of holothuroids! We are indebted to his invaluable contributions to this field of science that we love so much.

Best regards,


From: flmnh-aspidolist <[log in to unmask]> On Behalf Of Dave Lane
Sent: Saturday, 11 September 2021 6:19 PM
To: [log in to unmask]
Subject: Re: Claude, ... Dr Claude Massin


Dear Yves,


I'm very sad to hear of Claude's passing.

I didn't meet him very often but had the honour of collaborating with him several decades ago on the description of a 'rare' and charismatic sea cucumber, Thelenota rubralineata, one of the most striking of evolution's 'creations' in the marine invertebrate world.

If you are attending his funeral service, as I expect you will be, please do pass on my condolences to his wife and family.


Best wishes


Dave Lane


David J. W. Lane

From: flmnh-aspidolist <[log in to unmask]> on behalf of Yves Samyn <[log in to unmask]>
Sent: Friday, September 10, 2021 9:49 PM
To: [log in to unmask] <[log in to unmask]>
Subject: Claude, ... Dr Claude Massin


Dear Colleagues/friends


Today, I have to bring you sad news.


Just yesterday, I've learned from Claude's wife that Claude has died; last Saturday...


It's extremely sad.


We've lost not only a colleague and a lot of expertise (and for some of us who knew Claude, a lot of friendship!)


Kind regards - yves



Yves Samyn

Conservator Recent Invertebrates (non insects) Collection

Editor-in-Chief Abc Taxa (

Royal Belgian Institute of Natural Sciences

Vautierstraat 29

1000, Brussels


Tel: +32 (0)2 627 41 24


The Royal Belgian Institute of Natural Sciences (RBINS), is currently only partly open due to the coronavirus crisis. For the moment, data requests that require access to the collections can ad hoc be fulfilled, depending availability of staff. We do have remote access to our databases and can provide some assistance with data requests. We can also partly process loan requests and receive loan returns. However, visitors are not yet allowed to visit the collections. Thank you for bearing with us during this difficult time. Keep it Safe!