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Figure 1. Moncharmontzeiana parthenopeia (Montchartmont Zei and Sgarella 1978). Gulf of Naples, Italy. All scanning electron micrographs from Moncharmont Zei and Sgarrella (1978). 1, Side view of holotype; scale bar = 100 µm. 2, Enlargement of basal part of holotype showing ribs of outer layer and supporting pillars; scale bar = 25 µm. 3, Higher enlargement of a small portion of test wall of holotype showing details of the arrangement of ribs [c] and pillars [p]; scale bar = 10 µm. 4, base of holotype showing anastomosing ribs; scale bar = 100 µm. 5, Side view of paratype with part of the outer layer removed exposing longitudinal rows of pillars; scale bar = 100 µm.
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