Figure 3 from: Gradinarov D (2014) The mermithid species Isomermis lairdi (Nematoda, Mermithidae), previously only known in Africa, found in Europe. ZooKeys 454: 1-11. https://doi.org/10.3897/zookeys.454.7577

Figure 3 - Tail region of male Isomermis lairdi from Jeleznitsa with spicules and genital papillae, lateral view. Scale bar: 100 µm.