FIGURE 4 in One new genus and two new free-living nematode species (Desmodorida, Desmodoridae) from the continental margin of New Zealand, Southwest Pacific Ocean

FIGURE 4. Onepunema enigmaticum gen. et sp. n. Light micrographs. A: Right lateral view of female head, showing unusual arrangement of head sensillae, cuticle annulations, and circular amphideal aperture; B: cross-section view of female head, showing thickened cuticle of main head region, reduced buccal cavity, and extended labial region; C: male mid-body region showing anterior (top) and posterior (bottom) testes; D: cross-section view of male middle body region, showing two types of cells in intestinal epithelium with numerous round inclusions; E: spicule. Arrows point towards the testes. Scale bar: A and B = 10 Μm; C = 35 Μm; D = 20 Μm; E = 16 Μm.