Carl Allgén
Carl Algon Jönsson Allgén (21 July 1886, in Lund – 19 August 1960, in Malmö) was a Swedish zoologist, who specialized in morphological and systematic research of nematodes. In 1912 he received his master's degree at Lund, then obtained his licentiate in 1918. He taught classes in biology in Jönköping (1920–40) and in biology and geography in Eslöv (1940–52). During his career, he took research trips to Austria, Germany and Switzerland (1922), to Norway (1928), to Heligoland (1922, 1936) and to the Middle East (1938). His collections are deposited in the Swedish Museum of Natural History in Stockholm