Published in Malacologia, in 1965, in volume 2, pages 189-197

Published in Malacologia, in 1965, in volume 2, pages 367-380

Published in Malacologia, in 1965, in volume 3, pages 103-110

Published in Malacologia, in 1965, in volume 3, pages 235-262

Published in Malacologia, in 1965, in volume 3, pages 263-286