The putative spinning organ in the Glomeridesmidae, external morphology, SEM. A–C: Glomeridesmus sp. (SUM06/08 02), female, mid-body leg. A: Overview of leg. B: Detail of tarsus. C: Detail of spinning field. D, E: Glomeridesmus cf. sumatranus (SUM06/08 01), female, spinning fields on tarsi of leg pair 2 with extruded threads/secretion. Abbreviations: cx = coxa, fe = femur, pof = postfemur, prf = prefemur, se = secretion, sf = spinning field, st = stigmata, su = suture, ta = tarsus, ti = tibia, v = stigmatic plate.