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Greece, Ionia Nisia, Lefkada, Meganisi Island, Spartochori, beached, collected July 1999, ex coll. J. Trausel. Image by Joop Trausel and Frans Slieker
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Tunisia, Medenine, Ile de Jerba, Plage de Sidi Mahres, beached, collected May 1995, ex coll. J. Trausel. Image by Joop Trausel and Frans Slieker
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South Africa, Western Cape, Mossel Bay, littoral zone, collected February 1974, ex coll. W.J.H. Onverwagt. Image by Joop Trausel and Frans Slieker
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Sri Lanka, Trincomalee, Uppa Valle, low tide, muddy-sand, collected August 1983, ex coll. W.J.H. Onverwagt. Image by Joop Trausel and Frans Slieker
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Aruba, Malmok, sandy bottom, by SCUBA diving, at 8 m depth, collected September 1986, ex coll. W.J.H. Onverwagt. Image by Joop Trausel and Frans Slieker
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Réunion, Cap la Houssaye, sandy bottom , by SCUBA diving, at 12 m depth, collected 1988, 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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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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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, Bretagne, Ille-et-Vilaine, Dinard, beached, collected 1991, ex coll. J. Trausel. Image by Joop Trausel and Frans Slieker
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Egypt, Al Bahr al Ahmar, Hurghada, ex coll. W.J.H. Onverwagt. Image by Joop Trausel and Frans Slieker
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Seychelles, Anse Boileau, low tide, collected November 1977, ex coll. W.J.H. Onverwagt. Image by Joop Trausel and Frans Slieker
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Bahamas, City of Freeport, Bell Channel, by dredging, at 300 m depth, collected 26th May 1985, ex coll. W.J.H. Onverwagt. Image by Joop Trausel and Frans Slieker
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Vietnam, Tonkin, ex coll. G. van Roon. 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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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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Portugal, Açores, São Miguel, Ilheu de Vila Franca, at 3 m depth, collected July 2000, ex coll. J. Trausel. Image by Joop Trausel and Frans Slieker
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Egypt, Al Bahr al Ahmar, Hurghada, beached, collected September 1989, ex coll. J. Trausel. Image by Joop Trausel and Frans Slieker
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Solomon Islands, Guadalcanal, Marau Sound, Honiara, low tide, collected 1980, ex coll. W.J.H. Onverwagt. Image by Joop Trausel and Frans Slieker
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United States, Florida, Missouri Key, collected August 1969, ex coll. W.J.H. Onverwagt. Image by Joop Trausel and Frans Slieker
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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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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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Bahamas, Tamarind Ledge, by dredging, at 30 m depth, collected 8th July 1980, ex coll. W.J.H. Onverwagt. Image by Joop Trausel and Frans Slieker