Ralfs, the British Desmidieae, 1848, completely online
Rupert Lenzenweger: Zieralgen - Desmidiaceen see also: Plates of Lenzenweger
Desmid image database, including West and West's British Desmidiaceae
Desmids, Introduction by Wim van Egmond
Gallery of Desmids (Jan Parmentier, Wim van Egmond)
Online pond-life identification-kit (Wim van Egmond, Dave Walker)
The Micropolitan Museum of microscopic art forms Wim van Egmond
Bill Ells' page, many links to (British) desmids
Desmidiacee italiane, (Italian desmids) by Gian Martello. With a book scan of J. B. Delponte, 1873 – Specimen Desmidiacearum Subalpinarum (21 plates)
The index nominum algarumHE INDEX NOMINUM ALGARUM
The Index Nominum Algarum, a compendium of all (ca. 200,000) algal names, is gradually being made available as a searchable database.
Algaebase Extensive database of > 60.000 algae species
PhD-thesis about phosphorus uptake kinetics in desmids by Elly Spijkerman
Desmids in the Oisterwijkse Vennen (Netherlands) Wim van Egmond