Eutrichodesmus trontelji sp. n., ♂ non-type from La Tai Dong; A habitus, lateral view B, E, I anterior part of body, lateral, dorsal and ventral views, respectively C, F midbody segments, lateral and dorsal views, respectively D, G, J posterior part of body, lateral, dorsal and ventral views, respectively H cross-section of a midbody segment, caudal view K limbus, prozonite texture and tergal setae, dorsal view L tergal seta, subdorsal view M both gonopods in situ, ventral view N left gonopod, lateral view O right gonopod, mesal view. Scale bars: 0.5 mm (A, E–J), 0.2 mm (B–D), 0.1 mm (M–O), 0.05 mm (K), 0.01 mm (L).