FIGURE 5 in A new species of the genus Thalassironus (Nematoda: Enoplida: Ironidae) from the coasts of South Korea

FIGURE 5. Scanning electron micrographs of Thalassironus koreanus sp. nov. A. male, cloacal opening with distal part of spicule visible, supplementary organ anteriorly above it (asterisk); B. male, surface with metanemes visible (arrow); C. male, tail with pairs of subventral setae (arrow); D. female, tail lacking subventral setae.