Eutrichodesmus tenuis sp. n., subadult ♀ paratype; A habitus, lateral view B, E, H anterior part of body, lateral, dorsal and ventral views, respectively C, F, I midbody segments, lateral, dorsal and ventral views, respectively D, G, J posterior part of body, lateral, dorsal and ventral views, respectively K head, ventral view L cross-section of a midbody segment, caudal view M poriferous midbody paratergite, lateral view N limbus, lateral view O, P, Q tergal setae, various views R midbody leg. Scale bars: 0.5 mm (A–I, L), 0.2 mm (J, K), 0.1 mm (M, O, R), 0.02 mm (N, P). 0.01 mm (Q).