Published in Bollettino malacologico, in 1999, in volume 35, pages 1-2

Published in Bollettino malacologico, in 1999, in volume 35, pages 3-44

Published in Bollettino malacologico, in 1999, in volume 35, pages 45-48

Published in Bollettino malacologico, in 1999, in volume 35, pages 49-50

Published in Bollettino malacologico, in 1999, in volume 35, pages 51-52

Published in Bollettino malacologico, in 1999, in volume 35, pages 53-55

Published in Bollettino malacologico, in 1999, in volume 35, pages 57-118