Published in Proceedings of The Malacological Society of London, in 1921, in volume 14, pages 125-127
Published in Proceedings of The Malacological Society of London, in 1921, in volume 14, pages 148-150
Published in Proceedings of the Malacological Society of London, in 1921, in volume 14, pages 174-190
Published in Proceedings of The Malacological Society of London, in 1921, in volume 14, pages 191-195
Published in Proceedings of The Malacological Society of London, in 1921, in volume 14, pages 209-220
Published in Proceedings of the Malacological Society of London, in 1921, in volume 14, issue 4, pages 117-118
Published in Proceedings of the Malacological Society of London, in 1921, in volume 14, issue 4, pages 118-119
Published in Proceedings of the Malacological Society of London, in 1921, in volume 14, issue 4, pages 119
Published in Proceedings of the Malacological Society of London, in 1921, in volume 14, issue 4, pages 123
Published in Proceedings of the Malacological Society of London, in 1921, in volume 14, issue 4, pages 124
Published in Proceedings of the Malacological Society of London, in 1921, in volume 14, issue 4, pages 131-134
Published in Proceedings of the Malacological Society of London, in 1921, in volume 14, issue 4, pages 135-138
Published in Proceedings of the Malacological Society of London, in 1921, in volume 14, issue 4, pages 139-140
Published in Proceedings of the Malacological Society of London, in 1921, in volume 14, issue 4, pages 141-147
Published in Proceedings of the Malacological Society of London, in 1921, in volume 14, issue 4, pages 151-160
Published in Proceedings of the Malacological Society of London, in 1921, in volume 14, issue 5-6, pages 161
Published in Proceedings of the Malacological Society of London, in 1921, in volume 14, issue 5-6, pages 163-167
Published in Proceedings of the Malacological Society of London, in 1921, in volume 14, issue 5-6, pages 173
Published in Proceedings of the Malacological Society of London, in 1921, in volume 14, issue 5-6, pages 198-208
Published in Proceedings of the Malacological Society of London, in 1921, in volume 14, issue 5-6, pages 221-226
Published in Proceedings of the Malacological Society of London, in 1921, in volume 14, issue 5-6, pages 227-231
Published in Proceedings of the Malacological Society of London, in 1921, in volume 14, issue 5-6, pages 233-236