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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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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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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