THE AFFINITIES OF PYRAMIDULA, PATULASTRA, ACANTHINULA, AND VALLONIA
Published in Proceedings of the Malacological Society of London, in 1920, in volume 14, issue 1, pages 6-30
Date published:1920-04-01
Published in Proceedings of the Malacological Society of London, in 1920, in volume 14, issue 1, pages 6-30
Date published:1920-04-01