page_title: Jan van der Hoeven
hierarchical_section_title: Jan van der Hoeven
caption_attribution_description: English: Jan van der Hoeven (1801-1868), professor natural history Leiden University
context_page_description: Jan van der Hoeven was a Dutch zoologist. His most famous book is Handboek der Dierkunde, translated into German and English. He wrote as readily about crocodiles as about butterflies, lancelets and lemurs. His research on the nautilus resulted in the discovery of a secondary sexual organ of unknown function which was then named after him as Hoeven's organ or Van der Hoeven's organ.
context_section_description: Jan van der Hoeven (9 February 1801 – 10 March 1868) was a Dutch zoologist. His most famous book is Handboek der Dierkunde (1827–1833), translated into German and English (by prof. Clark). He wrote as readily about crocodiles as about butterflies, lancelets and lemurs.  His research on the nautilus resulted in the discovery of a secondary sexual organ of unknown function which was then named after him as Hoeven's organ or Van der Hoeven's organ.
caption: Portrait by the University of Leiden
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