Natural History / Shells & other Invertebrates

WODARCH, Charles. An introduction to the study of conchology, describing the orders, genera, and species of shells; their most prominent characteristics, and usual mode of classification. With observations on the nature and properties of the animals; and directions for collecting, preserving, and cleaning shells.
London, Longman, Hurst, Rees, Orme & Browne, 1820. 8vo. With 4 handcoloured engraved plates of shells. Modern black cloth, title in gold on spine. pp. xxiv, 120. Full description

ZEKELI, Lukas Friedrich Die Gastropoden der Gosaugebilde in den nordöstlichen Alpen. [...] Aus den Abhandlungen der k.k. geologischen Reichsanstalt. 1. Band. 2. Abtheilung, Nr. 2. Mit 24 lithographirten Tafeln.
Wien, K. K. Hof- und Staatsdruckerei bei Wilhelm Braumüller, 1852. Folio. With engraved coat-of-arms of the Austrian Empire flanked by two eagles on the title-page and 24 numbered full-page plates of (snail-) shells with more than 400 figures, lithographed by J. Strohmaijer, Zehner, Heinrich Backer and A. Paschinger. Contemporary half calf. [4], 124 pp. Full description