On 15 April 2010, the United Nations Postal Administration (UNPA) will issue a set of 4 stamps celebrating International Year of Biodiversity. The four stamps depicts a species of arachnid, starfish, Hydrodictyaceae and boxfish.
The images selected are from the book Art Forms from Nature by German biologist/artist Ernst Heinrich Haeckel (1834-1919).
* F.s. 1,60 A species of arachnid
* F.s. 1,90 A species of starfish
* € 0,05 A species of Hydrodictyaceae (colonial algae)
* € 0,20 A species of boxfish (Ostraciidae)
Title: International Year of Biodiversity
Date of Issue: 15 April 2010
Country: United Nations
Denominations: F.s. 1,60, F.s. 1,90, € 0,05, € 0,20