Published in Proceedings of The Malacological Society of London, in 1920, in volume 14, pages 2
Published in Proceedings of The Malacological Society of London, in 1920, in volume 14, pages 31-33
Published in Proceedings of the Malacological Society of London, in 1920, in volume 14, pages 52-73
Published in Proceedings of The Malacological Society of London, in 1920, in volume 14, pages 74-76
Published in Proceedings of The Malacological Society of London, in 1920, in volume 14, pages 91-113
Published in Proceedings of the Malacological Society of London, in 1920, in volume 14, pages 114-115
Published in Proceedings of the Malacological Society of London, in 1920, in volume 14, issue 1, pages 5
Published in Proceedings of the Malacological Society of London, in 1920, in volume 14, issue 1, pages 6-30
Published in Proceedings of the Malacological Society of London, in 1920, in volume 14, issue 1, pages 34-42
Published in Proceedings of the Malacological Society of London, in 1920, in volume 14, issue 2-3, pages 43-45
Published in Proceedings of the Malacological Society of London, in 1920, in volume 14, issue 2-3, pages 45-46
Published in Proceedings of the Malacological Society of London, in 1920, in volume 14, issue 2-3, pages 46-47
Published in Proceedings of the Malacological Society of London, in 1920, in volume 14, issue 2-3, pages 47-48
Published in Proceedings of the Malacological Society of London, in 1920, in volume 14, issue 2-3, pages 48
Published in Proceedings of the Malacological Society of London, in 1920, in volume 14, issue 2-3, pages 51
Published in Proceedings of the Malacological Society of London, in 1920, in volume 14, issue 2-3, pages 73
Published in Proceedings of the Malacological Society of London, in 1920, in volume 14, issue 2-3, pages 77-90
Published in Proceedings of the Malacological Society of London, in 1920, in volume 14, issue 2-3, pages 116