Acrochordonoposthia robusta Luther, 1963

(Fig 6 K)

Known literature. Acrochordonoposthia robusta Luther (1963): 18, fig. 3I

Known distribution. Tenala, Hylta, Finland, Sphagnum -swamp in a small valley at the shore of lake Långträsk, situated in the shade of willows, found between leaves of Salix in the water (Luther 1963).

Material. None

Remarks. This species is poorly known, as it was described from a single, disintegrating specimen (Luther 1963). Animals over 1 mm long. The copulatory organ measures 414 µm in length and is provided with a conicalshaped pouch. The proximal part of the cirrus is weakly bent, funnel-shaped and further distally becomes straight and lined with spines.