This Day In History: 1935-08-05

Johannes Thiele (1860 – 1935) died on this day. He was a German zoologist who published on sponges and crustaceans but is best known as a malacologist. Curator of the malacological collection at the Museum für Naturkunde, Berlin (1904 – 1925). Thiele is most famous for his Handbuch der Systematishen Weichtierkunde (1929 – 1935) published in English under the title Handbook of Systematic Malacology, possibly the single most widely used malacological text of the 20th century.

Thiele described more than 1,500 species of molluscs and is honoured in the names of numerous species under thielei.