Notodiaptomus santafesinus male, SEM photographs. A Dorsal view of right side of Ped3, Ped4 and Ped5 (100 µm) B Right P5 (300 µm) C Terminal segments of EnpP4 and ExpP4 (100 µm) D Segments 13–17 of A1R (200 µm) E P5L (100 µm) F Detail of Exp2P5R (50 µm) G Detail of ornamentation of spinules of EnpP4 and ExpP4 (50 µm) H Segments 1 and 2 of A1R (100 µm).