| Shelling trips |
| Kiribati 2013 - May 2013 |
| Ecuador 2013: Land Snail Hunting! - April 2013 |
| Jamaica - October 2011 |
| Yucatan - Mexico - May 2010 |
| Grand Cayman - May 2010 |
| Turks and Caicos Islands - March 2010 |
| Minabe - The Shell Center of Japan - December 2009 |
| Bahamas 2009 - August 2009 |
| New Zealand 2009 - April 2009 |
| St. Vincent and Grenadines - March 2009 |
| Curaçao 2008 - April 2008 |
| Shelling in Rosario Island, Colombia - November 2007 |
| Collecting in East Panama - August 2007 |
| Costa Rica - February 2007 |
| Natal, Rio Grande do Norte, Brazil - January 2007 |
| A New Shell Frontier: Fiji Islands - September 2006 |
| Roatan, Honduras - April 2006 |
| Cook Islands : Aitutaki - April 2006 |
| Cook Islands : Rarotonga - April 2006 |
| New Zealand - March 2006 |
| Dredging in North Brazil - August 2005 |
| Bahamas - March 2005 |
| Marshall Islands - February 2005 |
| Antigua & Barbuda - January 2005 |
| Piauí, Brazil - January 2005 |
| São Tomé and Príncipe - October 2004 |
| Aruba - August 2004 |
| United Arab Emirates - April 2004 |
| Dominican Republic - April 2004 |
| Mexico - August 2003 |
| New Caledonia - January 2001 |
| Ecuador: A new Adventure - August 1998 |
| Western Samoa - November 1994 |
| American Samoa - November 1994 |
| Aruba - November 1992 |
| Shelling trip to Hawaii - July 1992 |
| Dredging in Ilhabela - January 1992 |
| Egypt - July 1991 |
| Trindade Island - October 1989 |
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| Shell shows |
| COA 2013 - Sarasota - July 2013 |
| Paris Shell Show 2013 - April 2013 |
| Ottmarsheim – 40 years of a great shell show! - October 2009 |
| Philadelphia Shell Show 2009 - October 2009 |
| COA 2009 - Clearwater, Florida - August 2009 |
| Broward Shell Show 2009 - February 2009 |
| Space Coast Seashell Festival 2007 - Melbourne, FL - January 2007 |
| 2006 Philadelphia Shell Show - October 2006 |
| Paris Shell Show - February 2006 |
| COA Convention 2005 - Punta Rassa, Fort Myers - Florida - July 2005 |
| 40th Broward Shell Show - May 2005 |
| 2004 Philadelphia Shell Show - October 2004 |
| COA 2004 Convention - Tampa - July 2004 |
| Shell Show in Paris - February 2004 |
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| Miscellaneous |
| Proper identification is important – but collecting data is even more so - August 2009 |
| Femorale 20 Years - June 2009 |
| Living with the Coltros: A special experience - March 2007 |
| MUZUSP - Museum of Zoology - November 2006 |
| Ultrasonic Cleaner - September 2006 |
| Otago and Auckland's Museum of Natural History - July 2006 |
| Colors, textures, forms and surprises when shelling in Ecuador - July 2006 |
| Megalobulimus - July 2006 |
| Limitations to shell collecting - January 2006 |
| Dredging creatures - November 2005 |
| Brazilian Land Snails - November 2005 |
| How to bring shells home - September 2005 |
| Shelling Checklist - August 2005 |
| The Bailey-Matthews Shell Museum - August 2005 |
| Brazilian Shell Club - Conquiliologistas do Brasil - March 2005 |
| Memorabilia - January 2005 |
| Entering The Academy of Natural History of Philadelphia - November 2004 |
| Screening - June 2004 |
| Shell people - February 2004 |
| Opisthostoma from Borneo - December 2003 |
| Live Shells Photographed by Cedric Coucom - November 2003 |
| An Unusual finding in Northeast Brasil - August 2003 |
| How to clean your findings - February 2003 |
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| Collectors |
| Captain William Owen - October 2021 |
| The Cook´s Collection - October 2009 |
| Carlos Persak Collection - June 2009 |
| Collection António Monteiro - February 2008 |
| Collection Ricardo Guerrini - December 2006 |
| Arne Ghys - Belgium - August 2006 |
| Celso Esteves - Brazil - February 2006 |
| Markus Niiranen - Finland - January 2006 |
| Carlos Eduardo Proença - Brazil - June 2005 |
| Hugh Morrison - Australia - June 2005 |
| Tony McCleery - Ireland - February 2005 |
| Rich Kirk - Philadelphia - October 2004 |
| Andre Weber - Switzerland - September 2004 |
| Eduardo Schirrmeister - Brazil - July 2004 |
| Luís de Távora - Portugal - May 2004 |
| Carlos Henckes - Brazil - April 2004 |
| Dr. Artur Roll Collection - Germany - March 2004 |
| Bullis collection - October 2003 |
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| Collections |
| Old Cameras - April 2007 |
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| Species description / Books |
| Land and Fresh Water Molluscs of Brazil - October 2006 |
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