This Day in History: 1912-12-06

Johann Wilhelm Haacke (1855 – 1912) died on this day. He was a German zoologist known for research into oviparity in monotremes such as the Platypus, and studies involving the morphology of jellyfish and corals. Studied under Haeckel at the University of Jena. Haacke emigrated to New Zealand (1881) moved to Australia the following year where he became director of the Natural History Museum in Adelaide (1882 – 84). On returning to Germany was appointed director of the zoo in Frankfurt-am-Main (1888 – 1893).

Haacke described around 27 taxa and is honoured in the names of a number of species under haackeanus and haackei.