Helicodesmus anichkini sp. n., ♂ paratype; A, D, G anterior part of body, lateral, dorsal and ventral views, respectively B, E, H midbody segments, lateral, dorsal and ventral views, respectively C, F, I posterior part of body, lateral, dorsal and ventral views, respectively J cross-section of a midbody segment, caudal view K head, ventral view L tergal setae, tegument structure, limbus and stricture region M ozopore region of a midbody segment, sublateral view N midbody leg, lateral view. Scale bars: A–J 0.1 mm; K 0.05 mm; N 0.02 mm; L, M 0.01 mm.