Richard Carl Wilhelm Theodor (Richard) Hertwig (1850–1937)

German zoologist. Studied zoology at Jena and Bonn; assistant to Max Schultze, 1872–4. Habilitated in zoology at Jena, 1875. Professor, Königsburg, 1881; Bonn, 1883. Professor and director of the Zoological Institute, Munich, 1885. With his brother, Oscar, worked on the fertilisation and development of sea urchins. His textbook of zoology, first published in 1891, went through fifteen editions.