Testate amoeba, part 2 of 4

What you see

Testate amoebae carry a shell; look for the opening from which the pseudopods come out.

Recorded on 20 July 2018. This loop is the 2:41–3:06 part of a 7:43 recording; the full recording is on Commons.

Points to check against your own sample:

• Arcella: smooth, round, yellow to brown dome, seen from above as a disc with a central hole.
• Difflugia: flask or vase shaped, covered in tiny mineral grains.

Other parts of the same recording: Testate amoeba, part 1 of 4, Testate amoeba, part 3 of 4, Testate amoeba, part 4 of 4.

Full description and look-alikes: Testate amoebae.

Credit line

Video: Alexander Klepnev, CC BY 4.0, via Wikimedia Commons

MP4 1280×720 0.8 MB MP4 640×360 0.1 MB