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Sketches of bivalve mollusks and eggsRepository: Ernst Mayr Library, Museum of Comparative Zoology, Harvard UniversityCall number: bAg 168.60.1 (15)
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Sweden, Värmland, at 14 m depth, collected 7th August 1967, ex coll. E.F. de Vogel. Image by Joop Trausel and Frans Slieker
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Argentina, Rió Negro, San Antonio Oeste, low tide, sandy bottom, collected March 1983, ex coll. W.J.H. Onverwagt. Image by Joop Trausel and Frans Slieker
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North Sea, Great Fisher Bank, by fishing, collected 1976-11, ex coll. J.J.C. Gouda. Image by Joop Trausel and Frans Slieker.