| Macrotrachela speciosa, whirling specimen. Because of the folds of the integument of the trunk this species may be confused with Pleuretra species, but Pleuretra has 4 toes, while this species has 3 (see below). |
| |
 |
| Macrotrachela speciosa, creeping specimen; focus plane on the more or less symmetrical ornamentations of the ventral integument (the dorsal integument has similar ornamentation). |
| |
 |
| Macrotrachela speciosa, lateral view of whirling specimen. Focus plane on the dorsal antenna , rostrum (Ro) and buccal field. BF: buccal field; DA: dorsal antenna; Mx: masrax with trophi; Ro: rostrum; TD: trochal discs |
| |
 |
| Macrotrachela speciosa, specimen compressed by coverslide; detail of the sculptured integument with projecting pores. |
| |
  |
| Macrotrachela speciosa, whirling specimen; anterior part; left: focus plane on the rostrum and upper lip. Also visible is the ornamentation of the integument of the trunk. Right: focus plane on the upper lip. The corona width is slightly smaller than the head width. |
| |
  |
| Macrotrachela speciosa, whirling specimen; anterior part. Left: optical longitudinal section; focus plane on the ligula in the sulcus. Right: focus plane on the ventral cingulum / buccal field. Also visible are the short seta on the trochal discs. |
| |
  |
| Macrotrachela speciosa, anterior part of a creeping specimen; focus plane on the rostrum. |
| |
  |
| Macrotrachela speciosa, foot with slightly granulated integument; cone-shaped spurs with interspace. SpL: 7µm; spur base width (SpBW): 3µm; spur interspace (SpIW): 5µm. Right: in contrast to Pleuretra this species has 3 toes (brightfield image). |
| |
  |
| Macrotrachela speciosa, ramate trophi. Left: cephalic view; dental formula (DF): 2/2+1. Right image: accidentely in the right trophus the ramus and uncus/ manubrium were mechanically separated. Ramus length: 17µm |
| |
| |
| |
|
Location : Felderbachtal Hattingen, NRW, Germany, Haselbecke, pond |
 |
| Habitat : between algae / detritus |
| Date: 03.08.2021 |
| |
|
|
|
|
|
| |
| |
|
|
