1881 ix, 101, 187 p., 15 lithographed plates, of which 4 are chromolithographs, contemporary half cloth with gilt title on spine, original printed front cover bound in. Rare and well-illustrated paper containing several new taxa, including Amalia (now Tandonia) budapestensis. Most plates show shells, others show radulae, living snails or both. Originally published in parts in the Malakozoologische Blätter, this being an "Extra-Abdruck". Dated inscription on front wrapper, by the author, with his autograph, to P. Hesse. Small stamp of Herbert Ant and autograph of P. Hesse on front flyleaf. Plates with some foxing, mostly in the margins, otherwise a good copy of this rare and important work.