Clathrulina elegans, test 34 µm, stalk 268 µm.
Clathrulinidae Claus, 1874
Diagnosis: Extracellular capsule or lorica attached to substrate, with axopodia emerging from perforations; kinetocyst extrusomes along axopodia; tubular mitochondrial cristae; biciliated and amoeboid stages; can be colonial.
Actinosphaeridium pedatus and Hedriocystis pellucida, bar = 10 µm
Clathrulina elegans, the Netherlands 2019