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Australia, Western Australia, Eagle Bluff, 25 km S of Denham, collected 4th September 1997, ex coll. Stichting Schepsel Schelp. Image by Joop Trausel and Frans Slieker
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Egypt, Janub Sina’, Gulf of Aqaba, Dahab, low tide, collected April 1988, ex coll. W.J.H. Onverwagt. Image by Joop Trausel and Frans Slieker
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Mexico, Baja California Sur, Isla Magdalena, intertidal on sand flats, collected 1985, ex coll. W.J.H. Onverwagt. Image by Joop Trausel and Frans Slieker
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Australia, New South Wales, Sydney, Long Reef, at low tide in sand, collected October 1967, ex coll. J.Ph. Voorwinde. Image by Joop Trausel and Frans Slieker
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Kenya, Mombasa, Bambury Beach, low tide, collected May 1985, ex coll. W.J.H. Onverwagt. Image by Joop Trausel and Frans Slieker
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Australia, Western Australia, Shark Bay, Denham, low tide, collected March 1976, ex coll. W.J.H. Onverwagt. Image by Joop Trausel and Frans Slieker
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Kenya, Mombasa, Bambury Beach, low tide, sandy bottom, collected May 1985, ex coll. W.J.H. Onverwagt. Image by Joop Trausel and Frans Slieker
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Brazil, Santa Catarina, Porto Belo, low tide, collected April 1984, ex coll. W.J.H. Onverwagt. Image by Joop Trausel and Frans Slieker
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New Zealand, Nelson, Pakawau Beach, ex coll. J.G.B. Nieuwenhuis. Image by Joop Trausel and Frans Slieker.
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New Zealand, Nelson, Pakawau Beach, washed ashore, collected December 1968, ex coll. W.J.H. Onverwagt. Image by Joop Trausel and Frans Slieker
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United States, California, Coronado, low tide, collected 1976, ex coll. W.J.H. Onverwagt. Image by Joop Trausel and Frans Slieker
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Philippines, Central Visayas, Cebu, Mactan Island, Punta Engaño, by trawling, collected 1984, ex coll. J.G.B. Nieuwenhuis. Image by Joop Trausel and Frans Slieker
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Egypt, Janub Sina’, Ras El Burka, sand , at 1-2 m depth, collected 1985, ex coll. W.J.H. Onverwagt. Image by Joop Trausel and Frans Slieker
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Spain, Canarias, Fuerteventura, Oliva Beach. Image by Joop Trausel and Frans Slieker
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Spain, Canarias, Fuerteventura, Oliva Beach, beached, collected December 1997, ex coll. J. Trausel. Image by Joop Trausel and Frans Slieker
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Australia, Western Australia, Albany, among weeds, at 7 m depth, collected 1987, ex coll. W.J.H. Onverwagt. Image by Joop Trausel and Frans Slieker
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Bahamas, City of Freeport, Freeport Harbour, shell sand , by dredging, at 9 m depth, collected 11th May 1985, ex coll. W.J.H. Onverwagt. Image by Joop Trausel and Frans Slieker
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Aruba, Spaans Lagoen, sandy bottom, by SCUBA diving, at 8 m depth, collected 1986, ex coll. W.J.H. Onverwagt. Image by Joop Trausel and Frans Slieker
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Australia, Western Australia, Broome, in sand on intertidal sandbar, collected January 1989, ex coll. J.G.B. Nieuwenhuis. Image by Joop Trausel and Frans Slieker
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United States, Florida, Bonita Springs, New Pass, collected July 1969, ex coll. J.G.B. Nieuwenhuis. Image by Joop Trausel and Frans Slieker
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Egypt, Al Bahr al Ahmar, 12 km N of Hurghada, Abu Sha'r, low tide, attached to seagrass , at 1 m depth, collected 24th August 1989, ex coll. W.J.H. Onverwagt. Image by Joop Trausel and Frans Slieker
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Philippines, Central Luzon, Zambales, Magalawa Island, in sand, by shrimpers, at 5 m depth, collected October 1966, ex coll. W.J.H. Onverwagt. Image by Joop Trausel and Frans Slieker
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Greece, Voreio Aigaio, Chios, Lagkada, at 2 m depth, collected August 1996, ex coll. J. Trausel. Image by Joop Trausel and Frans Slieker
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France, Leucate (11), Chenal de Port-Leucate, février 1987, collection S. Clanzig, image © Sylvain Clanzig.