1819-1821. xlviii, 27, 110, [1] p., small folio (32.3 x 22.4 cm), plain modern boards with marbled covers.The first part contains Férussac's important posthumously published table of the higher systematics (genus - family - order - class - "section", i.e. phylum). This is followed by a 27 pp. "Tableau systématique de la famille des limaces, servant de supplément provisoire a notre histoire naturelle de ces animaux" and this is subdivided in two parts, limaces, and limaçons, cochleae. This is followed by a catalogue des espèces, which includes many systematical changes and new species. There are references to plates but these were issued later and are not included. Waterstaining to the first six leaves and to a few other pages, some pages with some slight foxing, two leaves with two repaired tears at the inner margin, otherwise a good copy of this very important work.