Published in Malacologia, in 1993, in volume 35, pages 141-151
Published in Malacologia, in 1993, in volume 35, pages 261-313
Published in Malacologia, in 1993, in volume 35, issue 1, pages 153-154
Published in Malacologia, in 1993, in volume 35, issue 2, pages 155-259
Published in Malacologia, in 1993, in volume 35, issue 2, pages 343-349
Published in Malacologia, in 1993, in volume 35, issue 2, pages 351-359
Published in Malacologia, in 1993, in volume 35, issue 2, pages 407-410