Fig. 1.

Serial observations of a cultured specimen of Neogloboquadrina incompta collected in the Norwegian Sea presenting and forming ectoplasmic roots. Panels (a) to (e) depict different stages of ectoplasmic root formation observed over the course of 6 days in culture. Black arrows in panels (a), (c), (d) and (e) indicate the rhizopodial activity. The black arrows in panel (b) indicate the root fragment and the location of the fracture on the test. The contrast in the pictures has been artificially enhanced to visualize the reticulopodia and the ectoplasmic roots. Scale bars: 100 μm.