Figure 2From: Intermediate hosts of Protostrongylus pulmonalis (Frölich, 1802) and P. oryctolagi Baboš, 1955 under natural conditions in France Different stages of infective larvae of Protostrongylus oryctolagi extracted from snail’s muscle, with external and internal sheath (A), without external sheath (B) and without darkened cuticle (C). Back to article page