Published in Occasional Papers on Mollusks, in 1998, in volume 5, issue 76, pages 427-455

Published in Occasional papers on mollusks, in 1998, in volume 5, issue 76, pages 456-457

Published in Occasional papers on mollusks, in 1998, in volume 5, issue 76, pages 458-464

Published in Occasional papers on mollusks, in 1998, in volume 5, issue 76, pages 465-466

Published in Occasional papers on mollusks, in 1998, in volume 5, issue 76, pages 466-467