Figure 3. Species that occur exclusively in reef/lagoonal settings. SLM photograph magnifications are indicated for each image and the scale is given as longest dimension (LD) in millimeters (mm) so that the illustrated object is, for example, 0.78 mm in its longest real dimension (Figure 2.1). 

3.15, 3.16. Placopsilina bradyi Cushman and McCulloch; 25x; 15, edge view, 1.08mm; 16, attached side view after breakage, LD=1.04mm.