Light micrographs of Longidorus bordonensis sp. nov. paratypes from the rhizosphere of grass (unknown species) at São Pedro do Sul, Viseu district, northern Portugal (1–10). 1. Anterior region. 2. Odontostyle region. 3. Lip region showing amphidial fovea. 4. Odontophore region. 5. Detail of basal bulb. 6, 7. Female tail region. 8. Male tail region. 9. vulva region. 10. Detail of spicule region. Abbreviations: a anus, af amphidial fovea, cd cardia, gr guiding ring, ost odontostyle, odph odontophore, sp spicules, spl ventromedian supplements, V vulva, vg vagina. Scale bars: 23 μm (1, 4); 15 μm (2, 3, 5); 50 μm (6, 7); 25 μm (8, 10); 30 μm (9).