mystery woodlouse

mystery woodlouse

Observation - mystery woodlouse. Description: 4 mm long, from dry moss at the base of oak in hanging woodland. No gills (at least, none obvious). Antennal flagellum with two sections (basal one short) - see second photo. Surface covered by tiny spines, and weak transverse ridge on pereon segments (cf

4 mm long, from dry moss at the base of oak in hanging woodland. No gills (at least, none obvious). Antennal flagellum with two sections (basal one short) - see second photo. Surface covered by tiny spines, and weak transverse ridge on pereon segments (cf. Porcellionides cingendus, which I'm sure it isn't).

Any ideas..?