| Habrotrocha cf. annulata, two specimens whirling in the lobules of the liverwort Frullania dilatata. |
 |
| Habrotrocha cf. annulata, head of the left specimen from the above image. The characteristic plication of the ventral side of the head and neck is visible. |
 |
| Habrotrocha cf. annulata, dorsal view of a whirling specimen. |
| |
| Location: Obfelden, Switzerland |
| Habitat: lobules of Frullania dilatata on bark of oak tree |
| |
| Sample collection by courtesy of A. Bueschlen, swissbryophytes |
| Date: 27./28. 11.2017 |
|
|
