Fig. 2

SEM of specimens of Baylisascaris devosi from Martes martes in Iran. a Cloacal region of the male ascarid worm with numerous papillae, the number of which is a taxonomic key. b Lateral view of the male ascarid worm with numerous papillae. c Cuticular structures around the male cloacal opening. d, e A small distinct spike found at the posterior end of the worm. f Intact and gallium cut of the male spike (see x-ray print-out for cut male spike)