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Fritz Haas (zoologist)

Fritz Haas (January 4, 1886 - December 26, 1969) was a German zoologist who specialized in the field of malacology. From 1911 until 1936 he was a curator of invertebrate zoology at the Senckenberg Museum in Frankfurt am Main. He was trained in biology by herpetologist Oskar Boettger and malacologist Wilhelm Kobelt. From 1938 until 1959 Haas was curator of Lower Invertebrates at the Field Museum of Natural History in Chicago.

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Haas specialty involved the study of land and freshwater snails, as well as the study of the family Unionidae (freshwater mussels). Haas is remembered for his extensive field research in Norway (1910), Western Europe (1914-19), southern Africa (1931-32; as part of the Hans Schomburgk expedition) and the Americas (1937 and after). On June 30, 1936, Haas was removed from his position at the Senckenberg Museum by the Nazis. His best known work is the 1969 monograph titled Superfamilia Unionacea. In 1969 Haas noted that the family Unionidae was comprised of 837 species.