1925 140 p. [paged 337-476], 20 text illustrations, including distribution maps, 2 lithographed plates of which one in full colour. Later quarter cloth over stiff boards. Spine with gilt author/title. Original printed wrappers bound in. With author’s dedication to the Dutch malacologist Hugo Frederik Nierstrasz (1872-1937), although it is not clear which author actually wrote the dedication: either the German malacologist Georg Hermann von Grimpe (1889-1936), or his fellow countryman and colleague Hans Hoffmann (1896-1947). Also, with, in the top margin of the title page, a stamp of the American malacologist Richard Irwin Johnson (1925-2020). A very good copy.A well-illustrated paper with many new species. Published as a part of F. Sarasin and J. Roux, Nova Caledonia, Forschungen in Neu-Caledonien und auf den Loyalty-Inseln. Zoologie (Volume III, Lieferung III).