Carl Friedrich Roewer (12 October 1881, in Neustrelitz – 17 June 1963) was a German arachnologist. He concentrated on harvestmen, where he described almost a third (2,260) of today's known

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

, but also almost 700 taxa of

spider Spiders (order (biology), order Araneae) are air-breathing arthropods that have eight limbs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude spider silk, silk. They are the largest order of arachnids and ran ...

s and numerous Solifugae. After earning his D.Phil, he was appointed senior assistant to Ernst Haeckel at the Zoological Institute of Jena. Later he was appointed zoologist at the Zoological Museum, Hamburg where he worked with the arachnologist Karl Kraepelin. From 1933 on, he was the second director of the Übersee-Museum in Bremen,

Germany Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...

. Under his direction the museum intensified its advocacy of

scientific racism Scientific racism, sometimes termed biological racism, is the pseudoscience, pseudoscientific belief that the Human, human species is divided into biologically distinct taxa called "race (human categorization), races", and that empirical evi ...

. The Senckenbergische Naturforschende Gesellschaft bought his extensive collection (including type material from other arachnologists such as L. Koch,

Eugène Simon Eugène Louis Simon (; 30 April 1848 – 17 November 1924) was a French naturalist who worked particularly on insects and spiders, but also on birds and plants. He is by far the most prolific spider Taxonomy (biology), taxonomist in history, ...

, Thorell, Philipp Bertkau and Friedrich Dahl) and his private library.Senckenberg forschungsinstitut und naturmuseum
Arachnology
Some of his specimens are also in the Museum für Naturkunde Berlin.

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* 1881 births 1963 deaths People from Neustrelitz German arachnologists People from Mecklenburg-Strelitz 20th-century German zoologists {{germany-zoologist-stub Nazi Party members

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