Published in Malacologia, in 1988, in volume 28, pages 159-273

Published in Malacologia, in 1988, in volume 28, issue 1-2, pages 53-64

Published in Malacologia, in 1988, in volume 29, issue 1, pages 7-19

Published in Malacologia, in 1988, in volume 29, issue 1, pages 89-100

Published in Malacologia, in 1988, in volume 29, issue 1, pages 153-193

Published in Malacologia, in 1988, in volume 29, issue 1, pages 275-287

Published in Malacologia, in 1988, in volume 29, issue 1, pages 295-307