Robuta

https://species.wikimedia.org/wiki/Category:Karl_Otto_von_Seemen_taxa

https://www.christies.com/lot/lot-otto-karl-knaths-black-face-clock-6013369/?from=salesummery&intobjectid=6013369

https://species.wikimedia.org/wiki/Category:Eponyms_of_Karl_Otto_Froebel

https://karl-otto-ohg.de/home-2/otto-1989/

https://www.christies.com/lot/lot-otto-karl-knaths-still-life-of-a-5040231/?from=salesummery&intobjectid=5040231