SEM micrographs. Amblydorylaimus isokaryon (Loof, 1975). Female (NI): A Lip region with protruded odontostyle D, E Lip region, in face view G, I Cephalic (marked by white arrow) and labial papillae (marked by black arrow), amphid aperture (marked by two arrows) Male: B, C Lip region, odontostyle aperture F, H Lip region J Cephalic and labial papillae, anterior edge of guiding sheath (marked by an arrow). Scale bars: 5 µm (A, B, E, F, H, J); 10 µm (C, D); 2 µm (G); 1 µm (I).