Fig. 4From: Integrative taxonomy of Metastrongylus spp. in wild boars from BrazilMetastrongylus apri found in wild boars hunted in Paraná and Rio Grande do Sul states. a Male posterior extremity showing the hook-like form at the spicule ending (inset). Magnification: ×40. Bar: 2000 µm. b Female posterior extremity; note the protruding vulvar swelling (blue arrow). Magnification: ×100. Bar: 100 µmBack to article page