Frontonia atra
Group: Other free-swimming ciliates · Colpoda, Litonotus, Frontonia, Loxophyllum, Dileptus, Loxodes and many more
What you see
Recorded on 12 October 2011. This loop is the 0:55–1:20 part of a 2:15 recording; the full recording is on Commons.
Points to check against your own sample:
- A single cell with cilia, a mouth area and food vacuoles inside; no jaw, no gut.
- Shape and the arrangement of cilia around the mouth are what specialists use: a long proboscis (Dileptus), a flat knife-like body (Litonotus), a small sphere that jumps (Halteria).
Full description and look-alikes: Other free-swimming ciliates.
Credit line
Video: Deuterostome, CC BY-SA 3.0, via Wikimedia Commons