Figure 4 from: Previattelli D, Perbiche-Neves G, Rocha CEF (2017) A new species of Notodiaptomus from the Amazon basin (Crustacea, Copepoda, Calanoida, Diaptomidae). ZooKeys 678: 11-30. https://doi.org/10.3897/zookeys.678.5978

Figure 4 - Notodiaptomus nelsoni sp. n. male. A Right geniculate A1, segments 13–16 (100 µm), arrow point the spinous process at segment 13 of antennule B Right geniculate A1, segment 20 (50 µm) C Complete right geniculate A1 (300 µm).