Gruberella Page 1984

Marine amoeba with rapidly moving locomotive form as a thick cylinder around 60 µm in length. Produces eruptive hyaline bulges. Multinucleate with around 6 nuclei but up to 37 per cell. Posterior adhesive filaments a common feature. At the ultrastructural level surface coat as a thin glycocalyx. Monotypic genus. Euhyperamoeba, a limax marine amoeba, is similar to Gruberella (see Chapter on Lobosea).