Phylum: Charophyta Family: Desmidiaceae
Cosmarium connatum Brébisson ex Ralfs 1848
Widespread and fairly common circumneutral to alkaline waters favouring loch-margins and moorland pools.
References:
John, D.M. & Williamson, D.B. (2009) A Practical Guide to the Desmids of the West of Ireland
West, W. & West, G.S. (1908) A Monograph of the British Desmidiaceae, Volume 3
Coesel, P.F.M. & Meesters, K.J. (2007) Mesotaeniaceae and Desmidiaceae of the European Lowlands