Stenostomum
Group: Small flatworms · Microturbellarians (Stenostomum and relatives)
What you see
Recorded on 13 September 2018. This loop is the 1:13–1:38 part of a 2:53 recording; the full recording is on Commons.
Points to check against your own sample:
- No segments, no bristles; the body is soft and shape-changing.
- Smooth gliding over surfaces; Stenostomum often forms chains of individuals.
Full description and look-alikes: Small flatworms.
Credit line
Video: Alexander Klepnev, CC BY 4.0, via Wikimedia Commons