Sensu Schmid, 1993
Body
The thorax has only two segments. The body setae are much shorter than the segment. The anterior and posterior parapods are separate and bear rows of claws. Procercus and two pairs of anal tubules present (Wiederholm, 1983; Moller Pillot, 1984b).
Head
The head length is 0.247- 0.270 mm (Schmid, 1993).
Antenna
The antenna consists of five segments. The blade is short and the Lauterborn organs are small.
Mentum
The mentum has three median teeth and 5 pairs of lateral teeth. The first lateral teeth are a little reduced and smaller than the second laterals Thienen cf-majusc ment. The ventromental plates are weak. The beard is absent.
Labrum
The pecten epipharyngis consists of three triangular spines, SI is weak and the premandible has one apical tooth (Wiederholm, 1983; Moller Pillot, 1984b).
Mandible
The mandible has an apical tooth and 4 inner teeth. The seta interna has plumose branches (Wiederholm, 1983).
Differential characteristics
The antenna of Thienemanniella is distinctive, shorter than the antenna of Corynoneura and not on a pedestal like Heterotanytarsus Antenna half headlength.
T. cf majuscula can be separated from the other Thienemanniella by the three median mental teeth and the first lateral teeth a little reduced Thienen cf-majusc ment.