Phylum: Charophyta   Family: Desmidiacea

Euastrum neospeciosum P.F.M. Coesel & K.J. Meesters 2023

It differs from the similar Euastrum bidentatum Nägeli 1894 in having more elaborate lateral lobes and deeper incurvations.
Cell dimensions: L: 45-53 µm; B: 31-35 µm; Is: 9-10.2 µm; Th: 21-23.6 µm; L/B: 1.39-1.63.
Found in acidic habitats such as Sphagnum bogs, moorland pools and old peat-cuttings. Frequently encountered in the Outer Hebrides.

References: 
Coesel, P.F.M. & Meesters, K.J. (2023 second edition). Desmids of the Lowlands.
Van Westen, M.C. (2024). Sieralgen in Drenthe.