Fig. 2
From: Integrative taxonomy of Metastrongylus spp. in wild boars from Brazil
Metastrongylus salmi found in wild boars hunted in São Paulo, Paraná, and Rio Grande do Sul states. a Anterior extremity, showing the trilobated lips (black arrow). Magnification: ×200. Bar: 50 µm. b Female posterior extremity; note the short pre-vulvar swelling (orange arrow). Magnification: ×100. Bar: 100 µm. c Male posterior extremity showing the hook-like form at spicule ending (inset). Magnification: ×40. Bar: 2000 µm