German zoologist
Friedrich Johann Graf von Medem (29 August 1912 in , Russian Empire presently Latvia – 1 May 1984 in Bogotá, Colombia) was a Baltic German zoologist who emigrated to Colombia at age 38 (in 1950) and later became a representative of the IUCN Crocodiles Specialist Group for South America. He was also known as Federico Medem and published under this name.
Eponyms.
Numerous species have been named after Medem, including four reptiles and two frogs. 
References.
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