Genus Coronamoeba Kudryavtsev, Voytinsky and Volkova, 2022

Diagnosis: Amoebae with limax-like locomotive form, tapering posteriorly, with anterior hyaline cap. Occasional eruptive bulging at the anterior end and steady monoaxial flow of the granuloplasm. Mitochondrial cristae tubular, dictyosomes present.
Type species. Coronamoeba villafranca Kudryavtsev, Voytinsky and Volkova, 2022

Coronamoeba villafranca   Kudryavtsev, Voytinsky and Volkova, 2022

Diagnosis: Limax-like amoebae, 6–11 μm long by 2–4 μm broad (average 9 by 3 μm), length:breadth ratio 2.25–5 (average 3), n = 59; single nucleus about 2 μm in diameter with a central nucleolus about 1 μm in diameter; locomotive form with occasional bulging at the anterior end, sometimes bulbous uroid; cell coat comprised by complex structures consisting of towershaped basal units and pentameric, crown-like top structures rising over horizontal overlapping discs; total thickness of the cell coat ca. 140–200 nm.

Ecology: Type location: 43.683 N, 7.317 E, planktonic material, primarily Collodarian colony, from the surface water layer, Bay of Villefranche, Mediterranean, salinity ca. 38‰.