Figs 1–9.

Loricae after mercuric bromophenol blue (1–6) and alcian blue stain (7–9). 1 – Codonella aspera, the staining is restricted to the lorica matrix; 2 – Eutintinnus brandti, the lorica is uniformly stained; 3, 4 – Climacocylis spec., the alveolar texture of the wall is well recognizable; 5, 6 – Rhabdonella spiralis, the alveolar texture, the minute openings, and the spiralled surface ridges are recognizable; 7–9 – Stenosemella ventricosa, lateral (7, 8) and oblique top (9) views. The staining is restricted to the bowl matrix. Scale bars: 50 μm (1, 7–9), 200 μm (2, 3), 40 μm (4), 100 μm (5), and 20 μm (6).