Fig. 1

SEM of specimens of Baylisascaris devosi from Martes martes in Iran. a En face view of the mouth area with the three fleshy lips characteristic of Ascarid worms. b Lateral view of the mouth entrance for the worm. c One of the fleshy lips with teeth-like denticles on the surface. d High magnification of the denticles. e En face view of the denticles found on both surfaces of the lip. f Intact and cut denticles (see x-ray print-out of a cut denticle)