author
Stephan Clessin
1833–1911
A 19th-century German malacologist and paleontologist, he devoted much of his life to the study of mollusks while also working outside academia. His name is closely linked with detailed taxonomic work on both living and fossil shells.
1 Audiobook
Die Tier- und Pflanzenwelt des Süsswassers. Zweiter Band.
by C. (Carl Heinrich) Apstein, Friedrich Borcherding, Stephan Clessin, Paul Kramer, E. Schmidt-Schwedt, Arthur Seligo, Friedrich Zschokke
About the author
Born in Würzburg on November 13, 1833, and later based in Regensburg, Stephan (often also written Stefan) Clessin was a German malacologist and paleontologist. He first served as a military officer and from 1862 worked for the Bavarian railways, building his scientific reputation alongside that career.
Clessin became known for his research on mollusks, especially gastropods, and for contributing to the classification of both recent and fossil species. He also served as an editor of Malakozoologische Blätter and made major contributions to the long-running Systematisches Conchylien-Cabinet, an important reference work for shell studies.
He died in Regensburg on December 21, 1911. A concise figure in scientific history, he is remembered for careful descriptive work that helped shape the study of European mollusks.