Halle, H. W. Schmidt, 1867. 4to (28.1 x 22.3 cm). 60 pp.; four lithographed plates showing molluscs and other invertebrates; one large, folded plate with profiles. Patterned quarter cloth over marbled boards. Green diamond-shaped label with gilt title mounted on the front board. Speckled edges.

A rare work, written by the German palaeontologist, botanist and teacher Friedrich Wilhelm Theodor Trenkner (1817-1890). The faunas described are diverse and well-preserved. Several species are new. Published in the Abhandlungen der Naturforschende Gesellschaft zu Halle, but this is a repaginated offprint, with its own title page. Provenance: from the library of the Belgian palaeontologist Laurent Guillaume de Koninck (1809-1887). Another name, in an old hand, written in the top margin of the title page. Light rubbing to the boards; text pages a bit toned; a few light pencil annotations, otherwise very good, clean.