Published in Malacologia, in 1965, in volume 3, pages 263-286
Published in Malacologia, in 1965, in volume 3, pages 235-262
Published in Malacologia, in 1965, in volume 2, pages 189-197
Published in Malacologia, in 1965, in volume 3, pages 103-110
Published in Malacologia, in 1965, in volume 2, pages 367-380