Ascarophisnema tridentatum Moravec et Justine, 2010 from Gymnocephalus grandoculis, scanning electron micrographs of female. (A, B) Cephalic end, lateral and apical views, respectively (arrows indicate tooth-like pseudolabial extensions); (C) cephalic end, dorsoventral view (arrow indicates tooth-like pseudolabial extension); (D) enlarged region of pseudolabium, dorsoventral view; (E) deirid; (F) anterior end of body, sublateral view. (a) Amphid; (b) cephalic papilla; (d) deirid; (p) pseudolabium; (s) sublabium.