Notodiaptomus spiniger male, SEM photographs. A Dorsal prosome and urosome, showing details of spinular ornamentation (200 µm) B, C P5 (150 µm) D A1R (120 µm) E Dorsal urosome somites 3 and 4, showing details spinular ornamentation (100 µm) F Segments 19 and 20 of A1R (100 µm) G Mammiform process on internal margin of BspP5R (20 µm) H Spinous process on segment 13 of A1R, and segments 14–17 (200 µm).