Richard Dean Allen passed away on February 10, 2023, in Honolulu, Oahu, Hawaii, the United States.
The protozoological and cell biological community sadly lost one of its best
and highly esteemed colleagues with international reputation.

Full texts:
DOI: 10.1111/jeu.12974
or via the authors:
Klaus Hausmann: hausmann@zedat.fu-berlin.de
Helmut Plattner: helmut.plattner@uni-konstanz.de